The text takes the railway to Lhasa to the article center
Publish: 2021-04-23 23:51:36
1. I think it has two meanings in general:
firstly, it is the strategic significance of our country. The reason why we put it in the first place is that national interests are paramount. As for China's handling of relations with neighboring countries, the contradiction between China and India on Tibet issue and territory issue has not been completely and effectively solved. It is necessary for China to strengthen its long-term and stable military presence in this region, so as to achieve the relative balance of strategic and tactical forces between China and India in this region; China and Pakistan can be said to be "allies without alliance treaty". Improving the transportation conditions in Tibet can also effectively strengthen the ties and exchanges between China and Pakistan. In addition, with the sustained and rapid development of China's economy in recent years, China's dependence on oil imports is increasing day by day, and the sea passage between the Persian Gulf, an important source of China's oil imports, and China is no longer "safe". Once a war breaks out, the belligerent countries (possibly enemy countries) can increase the risk of China's oil transportation by blocking the Strait of Malacca, Therefore, China can improve the transportation conditions from Tibet to the mainland, and then connect with the oil import pipeline built in Pakistan, so as to rece the risk of China's oil import and ensure the smooth supply of China's oil
secondly, the social significance of China. For China, the extension of the Qinghai Tibet railway to Lhasa can effectively strengthen the exchanges between Tibet and the mainland, close the ties between Tibet and the mainland, and enhance mutual understanding and understanding between Tibet and the mainland, so that the mainland can more directly drive the economic, social and cultural development of Tibet, To narrow the gap between the Tibetan areas and the mainland, and then promote the integration of ethnic groups. At the same time, building the railway to Lhasa can get rid of the past single mode of air transportation, rece the pressure of air transportation, and deliver effective stability maintaining forces and survival materials to Tibet in case of emergency or emergency in Tibet, so as to meet the basic survival needs and living needs of the Tibetan people to the maximum extent and rece potential insecurity factors to the greatest extent
the above contents are personal opinions only, please refer to them
firstly, it is the strategic significance of our country. The reason why we put it in the first place is that national interests are paramount. As for China's handling of relations with neighboring countries, the contradiction between China and India on Tibet issue and territory issue has not been completely and effectively solved. It is necessary for China to strengthen its long-term and stable military presence in this region, so as to achieve the relative balance of strategic and tactical forces between China and India in this region; China and Pakistan can be said to be "allies without alliance treaty". Improving the transportation conditions in Tibet can also effectively strengthen the ties and exchanges between China and Pakistan. In addition, with the sustained and rapid development of China's economy in recent years, China's dependence on oil imports is increasing day by day, and the sea passage between the Persian Gulf, an important source of China's oil imports, and China is no longer "safe". Once a war breaks out, the belligerent countries (possibly enemy countries) can increase the risk of China's oil transportation by blocking the Strait of Malacca, Therefore, China can improve the transportation conditions from Tibet to the mainland, and then connect with the oil import pipeline built in Pakistan, so as to rece the risk of China's oil import and ensure the smooth supply of China's oil
secondly, the social significance of China. For China, the extension of the Qinghai Tibet railway to Lhasa can effectively strengthen the exchanges between Tibet and the mainland, close the ties between Tibet and the mainland, and enhance mutual understanding and understanding between Tibet and the mainland, so that the mainland can more directly drive the economic, social and cultural development of Tibet, To narrow the gap between the Tibetan areas and the mainland, and then promote the integration of ethnic groups. At the same time, building the railway to Lhasa can get rid of the past single mode of air transportation, rece the pressure of air transportation, and deliver effective stability maintaining forces and survival materials to Tibet in case of emergency or emergency in Tibet, so as to meet the basic survival needs and living needs of the Tibetan people to the maximum extent and rece potential insecurity factors to the greatest extent
the above contents are personal opinions only, please refer to them
2. Central idea: praises the wisdom and strength of the road building army, as well as their spirit of hard work and dedication
main contents: the road construction army overcame many difficulties and penetrated the tunnel on Fenghuoshan.
main contents: the road construction army overcame many difficulties and penetrated the tunnel on Fenghuoshan.
3. (1-3): the start of the construction of the Qinghai Tibet railway, the landmark project of the western development.
(4-10): the builders of the western region have overcome the world's problems and finally completed the 1388m Fenghuoshan tunnel.
(11): the completion of the Fenghuoshan tunnel indicates that the construction of the Qinghai Tibet railway is in sight.
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(4-10): the builders of the western region have overcome the world's problems and finally completed the 1388m Fenghuoshan tunnel.
(11): the completion of the Fenghuoshan tunnel indicates that the construction of the Qinghai Tibet railway is in sight.
If I can help you, Can I get a good review? Thank you Top right corner)
4.
A: the main idea of the passage of "building the railway to Lhasa" is as follows:
the first part (NATURAL sections 1-3) describes the commencement of the Qinghai Tibet railway, the landmark project of the western development
The second part (NATURAL section 4-10) describes that the Western builders have overcome the world's problems and finally completed the 1388m Fenghuoshan tunnelthe third part (the 11th natural section) describes that the Fenghuoshan tunnel has been completed, which indicates that the construction of the Qinghai Tibet railway is in sight
the main contents are as follows: under the conditions of high cold and lack of oxygen, bad natural environment, fragile ecological environment and extremely difficult construction conditions, the Western builders overcame world-class problems with wisdom and strength, overcame international technical difficulties, and created the world railway construction miracle Fenghuoshan tunnel
knowledge development:
I. build the railway to Lhasa
on October 18, 2001, the wind volcano under the blue sky and white clouds was extremely enchanting. Hundreds of young commandos in orange uniforms and dozens of large-scale construction machinery were on the alert
with a command, bursts of blasting sound resounded through the snow plateau, and Fenghuoshan tunnel was excavated. A long "iron dragon" starts from Golmud, a new instrial city deep in the Qaidam Basin, crosses the towering Kunlun Mountain, passes here, crosses the "roof of the world" Qinghai Tibet Plateau, and reaches Lhasa, the holy city of snow. This is the Qinghai Tibet railway, the landmark project of the western development, and it is the Qinghai Tibet railway that benefits the people
Fenghuoshan tunnel has to pass through permafrost area, and various complex permafrost layers are in front of it, so the construction is very difficult. Blasting time and time again, blasting out is not stone, but hard ice. No wonder some western media predict that it is impossible for the Chinese to tunnel in such bad geology
It is not easy to build a railway to Lhasa. What is being built is a permafrost railway with the highest altitude and the longest line in the world. The key to the construction of Fenghuoshan tunnel is to control the temperature. Scientists and technicians directed the commandos to spray concrete on the wall of the tunnel that had just been g. Because the temperature is too low, the concrete cannot set. They brought the air heater to warm the tunnel, and the ice and rock on the tunnel wall melted again, causing the tunnel wall to collapse. Fenghuoshan, a ten thousand year old iceberg, has shown its ferocious face, which has brought a threat to the road building army However, all this can't defeat our road building army. Scientific and technological personnel observed in the tunnel day and night, and found the law of ice rock temperature change. After repeated observation, analysis and experiment, they finally found the best temperature of shotcrete and subed the fierce frozen soil Repair the railway to Lhasa! The road building army has high morale, and the tunnel is extending bit by bit The team was attacked by bad weather and extreme hypoxia. The area around Fenghuoshan is often windy. Just built 150 square meters of thermal insulation greenhouse, overnight was torn to pieces by the wind. The new generator room, the roof of the iron tile was missing. Just now, the sky was still clear, and in the twinkling of an eye, dark clouds were pressing down, and hailstones of all sizes were smashing down. Fenghuoshan is 4905 meters above sea level, where the oxygen content of the air is less than half that of the plain. As the tunnel goes deeper and deeper, the air in the tunnel becomes thinner and thinner. Although they are ready for the lack of oxygen, the situation in the construction is unexpected. The oxygen cylinders on the workers' backs provide only a drop in the bucket. All the commandos had chest tightness, shortness of breath, headache and sore legs. The wind gun used by two people can only be picked up by four people now. Labor efficiency is rapidly declining. The lives of the road building army are under serious threatthe lights of the headquarters were on all night. Can we build a large oxygen station? The headquarters and Beijing University of science and technology formed a joint research team to attack this new problem. After more than 200 failures, the world's first large-scale plateau oxygen station has been built! Plenty of oxygen flows down long pipes into the tunnel. Fenghuoshan, this huge roadblock, lowered its arrogant head again and again
Repair the railway to Lhasa! Build the railway to Lhasa! Commandos and scientific and technological personnel, again and again cry out the same wish. On October 19, 2002, the 1338 meter Fenghuoshan tunnel was successfully completedthe "iron dragon" of the Qinghai Tibet railway is constantly moving forward, and Lhasa is already far away...
IV. brief introction to the author Zhang Jiankui
native place: Shandong
major: news and law; Graated from: Beijing Broadcasting University, Central Party School Ecation: Bachelor degree date of birth: October 10, 1982 main work: touch wind volcano
5. On October 18, 2001, the wind volcano under the blue sky and white clouds was extremely enchanting. Hundreds of young commandos in orange uniforms and dozens of large-scale construction machinery were on the alert
with a command, bursts of blasting sound resounded through the snow plateau, and Fenghuoshan tunnel was g. A long "iron dragon" starts from Golmud, a new instrial city deep in the Qaidam Basin, crosses the towering Kunlun Mountain, passes here, crosses the "roof of the world" Qinghai Tibet Plateau, and reaches Lhasa, the holy city of snow. This is the Qinghai Tibet railway, the landmark project of the western development, and it is the Qinghai Tibet railway that benefits the people
Fenghuoshan tunnel has to pass through permafrost area, and various complex permafrost layers are in front of it, so the construction is very difficult. Blasting time and time again, blasting out is not stone, but hard ice. No wonder some western media predict that it is impossible for the Chinese to tunnel in such bad geology
it is not easy to build a railway to Lhasa. What is being built is a permafrost railway with the highest altitude and the longest line in the world. The key to the construction of Fenghuoshan tunnel is to control the temperature. Scientists and technicians directed the commandos to spray concrete on the wall of the tunnel that had just been g. Because the temperature is too low, the concrete cannot set. They brought the air heater to warm the tunnel, and the ice and rock on the tunnel wall melted again, causing the tunnel wall to collapse. Fenghuoshan, a ten thousand year old iceberg, has shown its ferocious face, which has brought a threat to the road building army
however, all this can not defeat our road building army. Scientific and technological personnel observed in the tunnel day and night, and found the law of ice rock temperature change. After repeated observation, analysis and experiment, they finally found the best temperature of shotcrete and subed the fierce frozen soil
repair the railway to Lhasa! The road building army has high morale, and the tunnel is extending bit by bit
bad weather and extreme hypoxia attack this team in turn. The area around Fenghuoshan is often windy. Just built 150 square meters of thermal insulation greenhouse, overnight was torn to pieces by the wind. The new generator room, the roof of the iron tile was missing. Just now, the sky was still clear, and in the twinkling of an eye, dark clouds were pressing down, and hailstones of all sizes were smashing down. Fenghuoshan is 4905 meters above sea level, where the oxygen content of the air is less than half that of the plain. As the tunnel goes deeper and deeper, the air in the tunnel becomes thinner and thinner. Although they are ready for the lack of oxygen, the situation in the construction is unexpected. The oxygen cylinders on the workers' backs provide only a drop in the bucket. All the commandos had chest tightness, shortness of breath, headache and sore legs. The wind gun used by two people can only be picked up by four people now. Labor efficiency is rapidly declining. The lives of the road building army are under serious threat
the lights of the headquarters were on all night. Can we build a large oxygen station? The headquarters and Beijing University of science and technology formed a joint research team to attack this new problem. After more than 200 failures, the world's first large-scale plateau oxygen station has been built! Plenty of oxygen flows down long pipes into the tunnel. Fenghuoshan, this huge roadblock, lowered its arrogant head again and again
repair the railway to Lhasa! Build the railway to Lhasa! Commandos and scientific and technological personnel, again and again cry out the same wish. On October 19, 2002, the 1338 meter Fenghuoshan tunnel was successfully completed
the "iron dragon" of the Qinghai Tibet railway is constantly moving forward, and Lhasa is far away
with a command, bursts of blasting sound resounded through the snow plateau, and Fenghuoshan tunnel was g. A long "iron dragon" starts from Golmud, a new instrial city deep in the Qaidam Basin, crosses the towering Kunlun Mountain, passes here, crosses the "roof of the world" Qinghai Tibet Plateau, and reaches Lhasa, the holy city of snow. This is the Qinghai Tibet railway, the landmark project of the western development, and it is the Qinghai Tibet railway that benefits the people
Fenghuoshan tunnel has to pass through permafrost area, and various complex permafrost layers are in front of it, so the construction is very difficult. Blasting time and time again, blasting out is not stone, but hard ice. No wonder some western media predict that it is impossible for the Chinese to tunnel in such bad geology
it is not easy to build a railway to Lhasa. What is being built is a permafrost railway with the highest altitude and the longest line in the world. The key to the construction of Fenghuoshan tunnel is to control the temperature. Scientists and technicians directed the commandos to spray concrete on the wall of the tunnel that had just been g. Because the temperature is too low, the concrete cannot set. They brought the air heater to warm the tunnel, and the ice and rock on the tunnel wall melted again, causing the tunnel wall to collapse. Fenghuoshan, a ten thousand year old iceberg, has shown its ferocious face, which has brought a threat to the road building army
however, all this can not defeat our road building army. Scientific and technological personnel observed in the tunnel day and night, and found the law of ice rock temperature change. After repeated observation, analysis and experiment, they finally found the best temperature of shotcrete and subed the fierce frozen soil
repair the railway to Lhasa! The road building army has high morale, and the tunnel is extending bit by bit
bad weather and extreme hypoxia attack this team in turn. The area around Fenghuoshan is often windy. Just built 150 square meters of thermal insulation greenhouse, overnight was torn to pieces by the wind. The new generator room, the roof of the iron tile was missing. Just now, the sky was still clear, and in the twinkling of an eye, dark clouds were pressing down, and hailstones of all sizes were smashing down. Fenghuoshan is 4905 meters above sea level, where the oxygen content of the air is less than half that of the plain. As the tunnel goes deeper and deeper, the air in the tunnel becomes thinner and thinner. Although they are ready for the lack of oxygen, the situation in the construction is unexpected. The oxygen cylinders on the workers' backs provide only a drop in the bucket. All the commandos had chest tightness, shortness of breath, headache and sore legs. The wind gun used by two people can only be picked up by four people now. Labor efficiency is rapidly declining. The lives of the road building army are under serious threat
the lights of the headquarters were on all night. Can we build a large oxygen station? The headquarters and Beijing University of science and technology formed a joint research team to attack this new problem. After more than 200 failures, the world's first large-scale plateau oxygen station has been built! Plenty of oxygen flows down long pipes into the tunnel. Fenghuoshan, this huge roadblock, lowered its arrogant head again and again
repair the railway to Lhasa! Build the railway to Lhasa! Commandos and scientific and technological personnel, again and again cry out the same wish. On October 19, 2002, the 1338 meter Fenghuoshan tunnel was successfully completed
the "iron dragon" of the Qinghai Tibet railway is constantly moving forward, and Lhasa is far away
6. The original text of "building the railway to Lhasa"
building the railway to Lhasa
on October 18, 2001, the wind volcano under the blue sky and white clouds, wrapped in silver, was particularly enchanting. Hundreds of young commandos in orange uniforms and dozens of large-scale construction machinery were on the alert
with a command, bursts of blasting sound resounded through the snow plateau, and Fenghuoshan tunnel was g. A long "iron dragon" starts from Golmud, a new instrial city deep in the Qaidam Basin, crosses the towering Kunlun Mountain, passes here, crosses the "roof of the world" Qinghai Tibet Plateau, and reaches Lhasa, the holy city of snow. This is the Qinghai Tibet railway, the landmark project of the western development, and it is the Qinghai Tibet railway that benefits the people
Fenghuoshan tunnel has to pass through permafrost area, and various complex permafrost layers are in front of it, so the construction is very difficult. Blasting time and time again, blasting out is not stone, but hard ice. No wonder some western media predict that it is impossible for the Chinese to tunnel in such bad geology
it is not easy to build a railway to Lhasa. What is being built is a permafrost railway with the highest altitude and the longest line in the world. The key to the construction of Fenghuoshan tunnel is to control the temperature. Scientists and technicians directed the commandos to spray concrete on the wall of the tunnel that had just been g. Because the temperature is too low, the concrete cannot set. They brought the air heater to warm the tunnel, and the ice and rock on the tunnel wall melted again, causing the tunnel wall to collapse. Fenghuoshan, a ten thousand year old iceberg, has shown its ferocious face, which has brought a threat to the road building army
however, all this can not defeat our road building army. Scientific and technological personnel observed in the tunnel day and night, and found the law of ice rock temperature change. After repeated observation, analysis and experiment, they finally found the best temperature of shotcrete and subed the fierce frozen soil
repair the railway to Lhasa! The road building army has high morale, and the tunnel is extending bit by bit
bad weather and extreme hypoxia attack this team in turn. The area around Fenghuoshan is often windy. Just built 150 square meters of thermal insulation greenhouse, overnight was torn to pieces by the wind. The new generator room, the roof of the iron tile was missing. Just now, the sky was still clear, and in the twinkling of an eye, dark clouds were pressing down, and hailstones of all sizes were smashing down. Fenghuoshan is 4905 meters above sea level, where the oxygen content of the air is less than half that of the plain. As the tunnel goes deeper and deeper, the air in the tunnel becomes thinner and thinner. Although they are ready for the lack of oxygen, the situation in the construction is unexpected. The oxygen cylinders on the workers' backs provide only a drop in the bucket. All the commandos had chest tightness, shortness of breath, headache and sore legs. The wind gun used by two people can only be picked up by four people now. Labor efficiency is rapidly declining. The lives of the road building army are under serious threat
the lights of the headquarters were on all night. Can we build a large oxygen station? The headquarters and Beijing University of science and technology formed a joint research team to attack this new problem. After more than 200 failures, the world's first large-scale plateau oxygen station has been built! Plenty of oxygen flows down long pipes into the tunnel. Fenghuoshan, this huge roadblock, lowered its arrogant head again and again
repair the railway to Lhasa! Build the railway to Lhasa! Commandos and scientific and technological personnel, again and again cry out the same wish. On October 19, 2002, the 1338 meter Fenghuoshan tunnel was successfully completed
the "iron dragon" of the Qinghai Tibet railway is constantly moving forward, and Lhasa is far away
building the railway to Lhasa
on October 18, 2001, the wind volcano under the blue sky and white clouds, wrapped in silver, was particularly enchanting. Hundreds of young commandos in orange uniforms and dozens of large-scale construction machinery were on the alert
with a command, bursts of blasting sound resounded through the snow plateau, and Fenghuoshan tunnel was g. A long "iron dragon" starts from Golmud, a new instrial city deep in the Qaidam Basin, crosses the towering Kunlun Mountain, passes here, crosses the "roof of the world" Qinghai Tibet Plateau, and reaches Lhasa, the holy city of snow. This is the Qinghai Tibet railway, the landmark project of the western development, and it is the Qinghai Tibet railway that benefits the people
Fenghuoshan tunnel has to pass through permafrost area, and various complex permafrost layers are in front of it, so the construction is very difficult. Blasting time and time again, blasting out is not stone, but hard ice. No wonder some western media predict that it is impossible for the Chinese to tunnel in such bad geology
it is not easy to build a railway to Lhasa. What is being built is a permafrost railway with the highest altitude and the longest line in the world. The key to the construction of Fenghuoshan tunnel is to control the temperature. Scientists and technicians directed the commandos to spray concrete on the wall of the tunnel that had just been g. Because the temperature is too low, the concrete cannot set. They brought the air heater to warm the tunnel, and the ice and rock on the tunnel wall melted again, causing the tunnel wall to collapse. Fenghuoshan, a ten thousand year old iceberg, has shown its ferocious face, which has brought a threat to the road building army
however, all this can not defeat our road building army. Scientific and technological personnel observed in the tunnel day and night, and found the law of ice rock temperature change. After repeated observation, analysis and experiment, they finally found the best temperature of shotcrete and subed the fierce frozen soil
repair the railway to Lhasa! The road building army has high morale, and the tunnel is extending bit by bit
bad weather and extreme hypoxia attack this team in turn. The area around Fenghuoshan is often windy. Just built 150 square meters of thermal insulation greenhouse, overnight was torn to pieces by the wind. The new generator room, the roof of the iron tile was missing. Just now, the sky was still clear, and in the twinkling of an eye, dark clouds were pressing down, and hailstones of all sizes were smashing down. Fenghuoshan is 4905 meters above sea level, where the oxygen content of the air is less than half that of the plain. As the tunnel goes deeper and deeper, the air in the tunnel becomes thinner and thinner. Although they are ready for the lack of oxygen, the situation in the construction is unexpected. The oxygen cylinders on the workers' backs provide only a drop in the bucket. All the commandos had chest tightness, shortness of breath, headache and sore legs. The wind gun used by two people can only be picked up by four people now. Labor efficiency is rapidly declining. The lives of the road building army are under serious threat
the lights of the headquarters were on all night. Can we build a large oxygen station? The headquarters and Beijing University of science and technology formed a joint research team to attack this new problem. After more than 200 failures, the world's first large-scale plateau oxygen station has been built! Plenty of oxygen flows down long pipes into the tunnel. Fenghuoshan, this huge roadblock, lowered its arrogant head again and again
repair the railway to Lhasa! Build the railway to Lhasa! Commandos and scientific and technological personnel, again and again cry out the same wish. On October 19, 2002, the 1338 meter Fenghuoshan tunnel was successfully completed
the "iron dragon" of the Qinghai Tibet railway is constantly moving forward, and Lhasa is far away
7. Build the railway to Lhasa
8. This text narrates how the Western constructors overcome the world-class problems with wisdom and strength, and created the miracle of railway construction in the world. Today, the Fenghuoshan tunnel, the highest tunnel in the world, runs through.
9. Build the railway to Lhasa
on October 18, 2001, the wind volcano under the blue sky and white clouds was extremely enchanting. Hundreds of young commandos in orange uniforms and dozens of large-scale construction machinery were on the alert
with a command, bursts of blasting sound resounded through the snow plateau, and Fenghuoshan tunnel was excavated. A long "iron dragon" starts from Golmud, a new instrial city deep in the Qaidam Basin, crosses the towering Kunlun Mountain, passes here, crosses the "roof of the world" Qinghai Tibet Plateau, and reaches Lhasa, the holy city of snow. This is the Qinghai Tibet railway, the landmark project of the western development, and it is the Qinghai Tibet railway that benefits the people
Fenghuoshan Tunnel needs to pass through permafrost area, and various complex permafrost layers are in front of it, so the construction is very difficult. Blasting time and time again, blasting out is not stone, but hard ice. No wonder some western media predict that it is impossible for the Chinese to tunnel in such bad geology
it is not easy to build a railway to Lhasa. What is being built is a permafrost railway with the highest altitude and the longest line in the world. The key to the construction of Fenghuoshan tunnel is to control the temperature. Scientists and technicians directed the commandos to spray concrete on the wall of the tunnel that had just been g. Because the temperature is too low, the concrete cannot set. They brought the air heater to warm the tunnel, and the ice and rock on the tunnel wall melted again, causing the tunnel wall to collapse. Fenghuoshan, a ten thousand year old iceberg, has shown its ferocious face, which has brought a threat to the road building army
however, all this can not defeat our road building army. Scientific and technological personnel observed in the tunnel day and night, and found the law of ice rock temperature change. After repeated observation, analysis and experiment, they finally found the best temperature of shotcrete and subed the fierce frozen soil
build the railway to Lhasa! The road building army has high morale, and the tunnel is extending bit by bit
bad weather and extreme hypoxia attack the team in turn. The area around Fenghuoshan is often windy. Just built 150 square meters of thermal insulation greenhouse, overnight was torn to pieces by the wind. The new generator room, the roof of the iron tile was missing. Just now, the sky was still clear, and in the twinkling of an eye, dark clouds were pressing down, and hailstones of all sizes were smashing down. Fenghuoshan is 4905 meters above sea level, where the oxygen content of the air is less than half that of the plain. As the tunnel goes deeper and deeper, the air in the tunnel becomes thinner and thinner. Although they are ready for the lack of oxygen, the situation in the construction is unexpected. The oxygen cylinders on the workers' backs provide only a drop in the bucket. All the commandos had chest tightness, shortness of breath, headache and sore legs. The wind gun used by two people can only be picked up by four people now. Labor efficiency is rapidly declining. The lives of the road building army are under serious threat
the lights of the headquarters were on all night. Can we build a large oxygen station? The headquarters and Beijing University of science and technology formed a joint research team to attack this new problem. After more than 200 failures, the world's first large-scale plateau oxygen station has been built! Plenty of oxygen flows down long pipes into the tunnel. Fenghuoshan, this huge roadblock, lowered its arrogant head again and again
build the railway to Lhasa! Build the railway to Lhasa! Commandos and scientific and technological personnel, again and again cry out the same wish. On October 19, 2002, the 1338 meter Fenghuoshan tunnel was successfully completed
the "iron dragon" of the Qinghai Tibet railway is constantly moving forward, and Lhasa is far away
on October 18, 2001, the wind volcano under the blue sky and white clouds was extremely enchanting. Hundreds of young commandos in orange uniforms and dozens of large-scale construction machinery were on the alert
with a command, bursts of blasting sound resounded through the snow plateau, and Fenghuoshan tunnel was excavated. A long "iron dragon" starts from Golmud, a new instrial city deep in the Qaidam Basin, crosses the towering Kunlun Mountain, passes here, crosses the "roof of the world" Qinghai Tibet Plateau, and reaches Lhasa, the holy city of snow. This is the Qinghai Tibet railway, the landmark project of the western development, and it is the Qinghai Tibet railway that benefits the people
Fenghuoshan Tunnel needs to pass through permafrost area, and various complex permafrost layers are in front of it, so the construction is very difficult. Blasting time and time again, blasting out is not stone, but hard ice. No wonder some western media predict that it is impossible for the Chinese to tunnel in such bad geology
it is not easy to build a railway to Lhasa. What is being built is a permafrost railway with the highest altitude and the longest line in the world. The key to the construction of Fenghuoshan tunnel is to control the temperature. Scientists and technicians directed the commandos to spray concrete on the wall of the tunnel that had just been g. Because the temperature is too low, the concrete cannot set. They brought the air heater to warm the tunnel, and the ice and rock on the tunnel wall melted again, causing the tunnel wall to collapse. Fenghuoshan, a ten thousand year old iceberg, has shown its ferocious face, which has brought a threat to the road building army
however, all this can not defeat our road building army. Scientific and technological personnel observed in the tunnel day and night, and found the law of ice rock temperature change. After repeated observation, analysis and experiment, they finally found the best temperature of shotcrete and subed the fierce frozen soil
build the railway to Lhasa! The road building army has high morale, and the tunnel is extending bit by bit
bad weather and extreme hypoxia attack the team in turn. The area around Fenghuoshan is often windy. Just built 150 square meters of thermal insulation greenhouse, overnight was torn to pieces by the wind. The new generator room, the roof of the iron tile was missing. Just now, the sky was still clear, and in the twinkling of an eye, dark clouds were pressing down, and hailstones of all sizes were smashing down. Fenghuoshan is 4905 meters above sea level, where the oxygen content of the air is less than half that of the plain. As the tunnel goes deeper and deeper, the air in the tunnel becomes thinner and thinner. Although they are ready for the lack of oxygen, the situation in the construction is unexpected. The oxygen cylinders on the workers' backs provide only a drop in the bucket. All the commandos had chest tightness, shortness of breath, headache and sore legs. The wind gun used by two people can only be picked up by four people now. Labor efficiency is rapidly declining. The lives of the road building army are under serious threat
the lights of the headquarters were on all night. Can we build a large oxygen station? The headquarters and Beijing University of science and technology formed a joint research team to attack this new problem. After more than 200 failures, the world's first large-scale plateau oxygen station has been built! Plenty of oxygen flows down long pipes into the tunnel. Fenghuoshan, this huge roadblock, lowered its arrogant head again and again
build the railway to Lhasa! Build the railway to Lhasa! Commandos and scientific and technological personnel, again and again cry out the same wish. On October 19, 2002, the 1338 meter Fenghuoshan tunnel was successfully completed
the "iron dragon" of the Qinghai Tibet railway is constantly moving forward, and Lhasa is far away
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