Rx480 improves computing power
Publish: 2021-04-26 08:58:27
1. The performance of Rx 480 graphics card is equivalent to that of gtx1060 3G, and it can run smoothly with medium effect. What are the game settings? Press resolution 1080p, turn off anti aliasing parameters, set the image quality effects to medium, test, the number of frames will be significantly improved.
2. Since the architecture of card a, the floating-point performance is powerful and difficult to develop, which leads to low performance utilization. The graphics API mantle developed by card a according to its own architecture is stillborn, which leads to lower utilization. The performance utilization of card a is only about 70%. Although 970 writes 2.4t floating-point performance, it is public data, The actual performance improvement of non-public card is about 15%, and the 970 can automatically overclock, so the actual experience is closer... However, dx12 inherits many things from mantle, so a card can get nearly 15% performance improvement in dx12... However, I think it's just a little stronger
3.
Due to the existence and exploitation of the deposit, the quality of groundwater and surface water near the mining area is deteriorated
1. Pollution of groundwater and surface water in mining area (deposit)
1) natural pollution: it mainly refers to the elements or components that are harmful to human health and the survival of other organisms in the deposit and enter into groundwater or surface water under natural conditions, polluting the natural water body. For example, the harmful elements contained in polymetallic and radioactive deposits enter the water body of the mining area through natural oxidation or leaching or dissolution. These harmful elements will form water halo around the deposit, which is larger than the distribution range of ore body and has high abnormal content. It is different from the chemical composition of regional groundwater. Although they can be used as prospecting indicators, they will endanger human health and worsen the environment, which is the source of some endemic diseases
2) water pollution caused by mining. The main problems are as follows: 1. The ore body is exposed by mining, which makes harmful elements directly enter into the mine water and causes pollution; ② Mining makes different components of water mixed, which often pollutes the original high-quality water and cannot be drunk; ③ The exploration engineering connects the ore body and aquifer, causing pollution; ④ Leaching water from waste slag will become polluted water rich in harmful substances; ⑤ Water pollution caused by the discharge of "three wastes" from mining affiliated factories; ⑥ Mining pollutes the air and the acid rain pollutes the water body of the mining area; ⑦ Microbial pollution caused by various reasons; ⑧ Formation and pollution of acid mine water. These seriously polluted mine drainage water, groundwater and surface water are harmful to human health and worsen the environment of mining area. The harm area is far larger than the distribution or mining area of ore deposits
Mining has changed the groundwater circulation conditions and hydrogeochemical environment, resulting in the deterioration of water qualitywith the development of mining to the deep, the exposed hydrogeochemical environment is often transformed. Mining activities often transform the recing environment into the oxidizing environment, resulting in new physical and chemical changes, causing water pollution and adverse effects on human body
Thermal pollution mining deep deposits may lead deep high heat (energy) to the shallow, which will increase the temperature of shallow strata or roadway space, forming thermal pollution. This mainly refers to the fact that hot water is exposed by the deepening of some shafts and roadways, or the underground temperature exceeds the safety regulations when mining in the geothermal anomaly area, which worsens the working environment The environmental geology of the mining area is briefly introced. In actual proction, geological disasters are usually not isolated. For example, the drainage of mining area will not only destroy the water supply source, but also be the direct cause of water quality deterioration, ground collapse and cracking. Therefore, in the actual proction, the environmental geological problems should be studied comprehensively. Attention should be paid to: 1) in the exploration, the study of hydrogeological conditions and the prediction of water inflow in the mining area should be strengthened, and the research of environmental geology, ecology and environmental protection in the mining area should be strengthened; ② At the same time, we should pay attention to the field research, strengthen the theoretical research of environmental geology, and strengthen the research of the overall law while studying indivial disasters; ③ Based on the evaluation of the current situation, we should do a good job in the prediction and prevention of geological disasters; ④ The principle of "prevention first, prevention combined" should be carried out, and the best scheme should be selected from the comparison of various schemes when formulating the scheme of prevention and control of environmental geological disasters; ⑤ The long-term observation network should be set up in the representative or serious environmental geological disasters, so as to master their activity rules. We should deal with the environmental geological disasters and strengthen the environmental protection so as to turn them into benign onessummary
through the study of this chapter, we mainly master the following key contents: ① overview of deposit hydrogeological survey, including the content and characteristics of deposit hydrogeological work, the principles of deposit hydrogeological exploration, and the compilation of deposit hydrogeological map system; ② The prevention and control methods of underground water in mining area are mainly water-proof measures (ground water-proof and underground water-proof), drainage (surface water-proof, underground water-proof and combined water-proof), grouting and water plugging; ③ The environmental geology of mining area includes the contradiction of water supply and drainage, the deformation and destruction of rock and soil, and the deterioration of water quality caused by mining
What are the contents and tasks of hydrogeological survey of ore deposits What are the characteristics of hydrogeological survey of deposit What are the requirements for the scope and scale of hydrogeological survey Why do we need to investigate and study the water filling conditions, the main water inflow direction, the perimeter of the deposit, the top and bottom aquifers, etc.4? What to study
What is the content of investigation and Study on the ground collapse in Karst mining area Why should fault be investigated? What to investigate What are the principles of hydrogeological exploration What hydrogeological data can be obtained from geological exploration holes What maps should be prepared after obtaining data from geological exploration holes10. Why should we investigate and study the water resisting layer (Group) of the surrounding rock of the roadway
There are several types of aquifuges12. What are the hydrogeological works in the shaft
Under what conditions are large-scale pumping test, underground drainage test and connection test carried out What are the hydrogeological map series of the deposit? How to compile What are the waterproof measures How to carry out the ground waterproof work in mining area How to carry out underground waterproof work in mining area What is waterproof pillar? Why should waterproof pillars be left? How to set up waterproof pillar19. Why should we explore water ahead of time? Under what circumstances should water exploration be advanced? What principles should be followed in advance water exploration
What is drainage? How to classify What is the meaning of surface drainage? How many methods are there? What are the advantages and disadvantages of each What are the main contents of underground drainage works? How to arrange it? What are the advantages and disadvantages23. What are the application conditions of grouting water shutoff
The method and requirement of water plugging by grouting? What are the advantages What are the environmental geological problems in the mining area? How to prevent and control4. The problems of environmental pollution and ecological damage caused by coal mining are becoming increasingly prominent, mainly in the following aspects:
1. The decline of surface water
e to a large amount of mine water discharged in the process of coal mining, the groundwater level drops, causing the decline of surface water
2. Strata dislocation and surface subsidence
e to a large amount of underground water pumping from coal mines, the bearing capacity of the upper and bottom of the mine is reced. In addition, most small coal mines do not take preventive measures such as reserving coal pillars in the mining process. Some small coal mines even arbitrarily excavate and destroy the reserved coal pillars in state-owned coal mines, resulting in strata dislocation and surface subsidence
3. The surface water is polluted
the concentration of suspended solids and other pollutants in the mine wastewater is high, especially the mine water flowing through the sulfur-containing iron seam, which is very acidic. According to the sampling test of mine wastewater in shuizibian area of Nankeng Town, the average concentration of suspended solids is 280 mg / L, the average concentration of chemical oxygen consumption is 530 mg / L, the concentration of sulfate ion is as high as 2500 mg / L, and the lowest pH value is only 2.7. If this kind of mine wastewater is discharged without treatment, it will seriously pollute the surface water, block the river and farmland channels, cause soil hardening, and have a great impact on crops
4. Land occupation and weathering pollution of coal gangues
coal gangues discharged from coal mines are generally stacked nearby. With the continuous increase of storage capacity, the area of storage yard is expanding year by year. According to statistics, by the end of 2001, the accumulated storage of coal gangue in the city had reached 75 million tons, occupying more than 3000 mu of land, and it is still increasing at the rate of adding more than 800000 tons of storage every year. After weathering, rain erosion and spontaneous combustion of coal gangue, the weathering materials on its surface enter into the atmosphere under the action of wind, which seriously pollutes the atmospheric environment. In rainy days, under the erosion of rain, it will carry the surface of small particles into the river, at the same time, it will leach out the sulfur ion and ferrous ion in pyrite associated with coal gangue, which will pollute the water environment
5. The destruction of forest vegetation
coal mining needs a lot of wood, which is calculated according to the average consumption of 150 cubic meters of pit wood per 10000 tons of coal proction. The coal mining instry alone consumes about 100000 cubic meters of timber a year. Such a large timber gap forces coal mines to purchase timber through multiple channels, which objectively encourages deforestation and imbalances the proportion of cultivation and felling. At the same time, e to the decline of groundwater level, the water content of surface aquifer decreases, which also affects the growth of vegetation
6. Secondary st pollution
a considerable part of coal is transported by car, and the leakage is very serious. A large amount of coal is lost, which makes the street coal st fly< In order to effectively prevent and control the environmental pollution and ecological damage in the process of coal mining and make the ecological environment of coal mining area step into a virtuous circle, the following countermeasures and suggestions are put forward:
first, strengthen the comprehensive treatment of mine wastewater and regional environment
(first) transform the existing wastewater treatment facilities. Repair and reform the aged and damaged wastewater treatment facilities and equipment to ensure the long-term and stable discharge of mine wastewater
(2) treatment of waste water discharged from some abandoned mines. Although coal mining has been stopped in some coal mines, mine waste water (commonly known as old hole water) is still discharged. The main reason is that the coal mining roadways of some coal mines are connected indirectly, and all mine wastewater is discharged from the lowest elevation wellhead, and the iron ions in the pyrite in the rock fault and weathering layer of the original old roadways are leached out, resulting in the high concentration of iron ions and sulfate ions in the wastewater, which seriously pollutes the water environment. Therefore, the waste water discharged from some abandoned mines must be treated by building a sedimentation tank, adding lime and other chemicals to the well, neutralizing, reaction and precipitation treatment, and then discharged to meet the standard< (3) comprehensive treatment should be carried out in some areas with serious environmental pollution and ecological damage. First, dredging and revetment of the silted river; The second is to do a good job in soil and water conservation engineering. Generally, the sewage sedimentation tank should be built at the surface runoff inflow point of the mining area< At present, the main way of comprehensive utilization of coal gangue in our city is power generation and brick making, with an annual utilization of about 650000 tons, but compared with the current storage, it can be said that the utilization is very small, and the utilization way is single. It is necessary to explore new ways of comprehensive utilization of coal gangue in order to "eliminate" coal gangue mp in the shortest possible time. The measures that can be taken are as follows:
(1) improve the comprehensive utilization of coal gangue power generation
the main furnace type of coal gangue power generation is circulating fluidized bed boiler, and the proction of sulfur oxides and nitrogen oxides in flue gas can be reced by adding limestone or dolomite and other desulfurizer. The calorific value of common fuel should be less than 12550 kJ / kg. The heat generated can be used for power generation and heating. The ash after combustion has high activity and is a good raw material for the proction of building materials. This part of coal gangue is mainly washed gangue discharged from coal preparation plant. At present, there are only three gangue power plants in Gaokeng, Anyuan and wangkeng, with a total installed capacity of 48000 kWh and an annual comprehensive utilization of about 500000 tons of gangue. On the basis of consolidating and improving the comprehensive utilization of coal gangue power generation, the above three power plants can be expanded to improve the comprehensive utilization of coal gangue power generation
(2) using coal gangue instead of clay to make bricks
using coal gangue instead of clay can not only rece energy consumption, but also rece ecological damage, which is the main way of large-scale utilization of coal gangue. The existing national policies can be used to control and ban clay brick making and encourage comprehensive utilization of coal gangue. The existing capacity of coal gangue brick making can be increased from 160000 tons of coal gangue to 10000 tons of milk< (3) backfilling with coal gangue
1. Backfilling the mining area with coal gangue
backfilling the mining area with coal gangue can not only rece the land occupation of coal gangue, but also rece the environmental pollution caused by coal gangue. Generally, the coal gangue used for backfilling is mainly sandstone and limestone
2. Coal gangue as engineering filling material
coal gangue as filling material mainly refers to filling the construction land in valley, coal mining subsidence area and other areas, or filling railway, highway subgrade and so on< (1) closing hillsides for afforestation, adopting the methods of grass planting, artificial afforestation and forest thinning to improve the ability of surface water conservation and soil and water conservation
(2) for the coal gangue that can not be digested in a short period of time, formulate feasible protection plans, schemes and measures. If it is suitable for forest, it will be suitable for grass.
1. The decline of surface water
e to a large amount of mine water discharged in the process of coal mining, the groundwater level drops, causing the decline of surface water
2. Strata dislocation and surface subsidence
e to a large amount of underground water pumping from coal mines, the bearing capacity of the upper and bottom of the mine is reced. In addition, most small coal mines do not take preventive measures such as reserving coal pillars in the mining process. Some small coal mines even arbitrarily excavate and destroy the reserved coal pillars in state-owned coal mines, resulting in strata dislocation and surface subsidence
3. The surface water is polluted
the concentration of suspended solids and other pollutants in the mine wastewater is high, especially the mine water flowing through the sulfur-containing iron seam, which is very acidic. According to the sampling test of mine wastewater in shuizibian area of Nankeng Town, the average concentration of suspended solids is 280 mg / L, the average concentration of chemical oxygen consumption is 530 mg / L, the concentration of sulfate ion is as high as 2500 mg / L, and the lowest pH value is only 2.7. If this kind of mine wastewater is discharged without treatment, it will seriously pollute the surface water, block the river and farmland channels, cause soil hardening, and have a great impact on crops
4. Land occupation and weathering pollution of coal gangues
coal gangues discharged from coal mines are generally stacked nearby. With the continuous increase of storage capacity, the area of storage yard is expanding year by year. According to statistics, by the end of 2001, the accumulated storage of coal gangue in the city had reached 75 million tons, occupying more than 3000 mu of land, and it is still increasing at the rate of adding more than 800000 tons of storage every year. After weathering, rain erosion and spontaneous combustion of coal gangue, the weathering materials on its surface enter into the atmosphere under the action of wind, which seriously pollutes the atmospheric environment. In rainy days, under the erosion of rain, it will carry the surface of small particles into the river, at the same time, it will leach out the sulfur ion and ferrous ion in pyrite associated with coal gangue, which will pollute the water environment
5. The destruction of forest vegetation
coal mining needs a lot of wood, which is calculated according to the average consumption of 150 cubic meters of pit wood per 10000 tons of coal proction. The coal mining instry alone consumes about 100000 cubic meters of timber a year. Such a large timber gap forces coal mines to purchase timber through multiple channels, which objectively encourages deforestation and imbalances the proportion of cultivation and felling. At the same time, e to the decline of groundwater level, the water content of surface aquifer decreases, which also affects the growth of vegetation
6. Secondary st pollution
a considerable part of coal is transported by car, and the leakage is very serious. A large amount of coal is lost, which makes the street coal st fly< In order to effectively prevent and control the environmental pollution and ecological damage in the process of coal mining and make the ecological environment of coal mining area step into a virtuous circle, the following countermeasures and suggestions are put forward:
first, strengthen the comprehensive treatment of mine wastewater and regional environment
(first) transform the existing wastewater treatment facilities. Repair and reform the aged and damaged wastewater treatment facilities and equipment to ensure the long-term and stable discharge of mine wastewater
(2) treatment of waste water discharged from some abandoned mines. Although coal mining has been stopped in some coal mines, mine waste water (commonly known as old hole water) is still discharged. The main reason is that the coal mining roadways of some coal mines are connected indirectly, and all mine wastewater is discharged from the lowest elevation wellhead, and the iron ions in the pyrite in the rock fault and weathering layer of the original old roadways are leached out, resulting in the high concentration of iron ions and sulfate ions in the wastewater, which seriously pollutes the water environment. Therefore, the waste water discharged from some abandoned mines must be treated by building a sedimentation tank, adding lime and other chemicals to the well, neutralizing, reaction and precipitation treatment, and then discharged to meet the standard< (3) comprehensive treatment should be carried out in some areas with serious environmental pollution and ecological damage. First, dredging and revetment of the silted river; The second is to do a good job in soil and water conservation engineering. Generally, the sewage sedimentation tank should be built at the surface runoff inflow point of the mining area< At present, the main way of comprehensive utilization of coal gangue in our city is power generation and brick making, with an annual utilization of about 650000 tons, but compared with the current storage, it can be said that the utilization is very small, and the utilization way is single. It is necessary to explore new ways of comprehensive utilization of coal gangue in order to "eliminate" coal gangue mp in the shortest possible time. The measures that can be taken are as follows:
(1) improve the comprehensive utilization of coal gangue power generation
the main furnace type of coal gangue power generation is circulating fluidized bed boiler, and the proction of sulfur oxides and nitrogen oxides in flue gas can be reced by adding limestone or dolomite and other desulfurizer. The calorific value of common fuel should be less than 12550 kJ / kg. The heat generated can be used for power generation and heating. The ash after combustion has high activity and is a good raw material for the proction of building materials. This part of coal gangue is mainly washed gangue discharged from coal preparation plant. At present, there are only three gangue power plants in Gaokeng, Anyuan and wangkeng, with a total installed capacity of 48000 kWh and an annual comprehensive utilization of about 500000 tons of gangue. On the basis of consolidating and improving the comprehensive utilization of coal gangue power generation, the above three power plants can be expanded to improve the comprehensive utilization of coal gangue power generation
(2) using coal gangue instead of clay to make bricks
using coal gangue instead of clay can not only rece energy consumption, but also rece ecological damage, which is the main way of large-scale utilization of coal gangue. The existing national policies can be used to control and ban clay brick making and encourage comprehensive utilization of coal gangue. The existing capacity of coal gangue brick making can be increased from 160000 tons of coal gangue to 10000 tons of milk< (3) backfilling with coal gangue
1. Backfilling the mining area with coal gangue
backfilling the mining area with coal gangue can not only rece the land occupation of coal gangue, but also rece the environmental pollution caused by coal gangue. Generally, the coal gangue used for backfilling is mainly sandstone and limestone
2. Coal gangue as engineering filling material
coal gangue as filling material mainly refers to filling the construction land in valley, coal mining subsidence area and other areas, or filling railway, highway subgrade and so on< (1) closing hillsides for afforestation, adopting the methods of grass planting, artificial afforestation and forest thinning to improve the ability of surface water conservation and soil and water conservation
(2) for the coal gangue that can not be digested in a short period of time, formulate feasible protection plans, schemes and measures. If it is suitable for forest, it will be suitable for grass.
5. It should be mining wastewater
if it is instrial wastewater, the proction capacity of the main proct is at least 100000 or even 100000 tons / year
if it is instrial wastewater, the proction capacity of the main proct is at least 100000 or even 100000 tons / year
6. It's also very cost-effective. I use rx4808g D5 game master to buy 1598 now. It seems that it's cheaper now. 1266 seems to have no start stop technology. 1340 has it, but 1266 can upgrade 1340 with official BIOS. It's better to upgrade 1340 with win10
7. Of course, it's very good. The rx4808g high-end graphics card has the same performance as the gtx10606g. It's aimed at playing large-scale stand-alone games, so it's a very good graphics card. If I haven't bought it yet, I personally think that if I buy the latest rx5808g, the performance will be improved, the power consumption and heat will be 480 lower, and the price won't be much higher,
8. 70% is not a bit exaggerated. Rx480 is said to be better than gtx980, but many games are not as good as gtx980. Compared with r9380, two r9380 are equal to rx480, which means 50% to 55%,
9. Now the configuration is enough, more than 60 frames has no practical significance, this set of configuration is 144 Hz display can also meet, that is, 144 frames are no problem.
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