In the production process of coal mines, water prevention and control is one of the important factors that affect the safety in production. The water prevention and control effect is fully guaranteed and plays a key r...In the production process of coal mines, water prevention and control is one of the important factors that affect the safety in production. The water prevention and control effect is fully guaranteed and plays a key role in the safety in production of coal mines. As one of the main energy sources, coal has a large number of mined-out areas due to long-term mining. Due to the differences in geological conditions, it is necessary to apply the comprehensive geophysical exploration technology scientifically and reasonably to provide technical support for water prevention and control. In this paper, the commonly used geophysical techniques are discussed respectively, and the application of integrated geophysical techniques is studied in order to improve the effect of water prevention and control in coal mines.展开更多
Water disasters are common disasters in coal mine production. With the continuous increase of coal mining depth, the threat of coal mine water disasters has also increased. Coal mine water disasters will bring great l...Water disasters are common disasters in coal mine production. With the continuous increase of coal mining depth, the threat of coal mine water disasters has also increased. Coal mine water disasters will bring great losses to the mine, such as mechanical and electrical equipment rust or damage, if serious, it will lead to casualties. In most cases, the mine rescue work is very difficult after the occurrence of water disasters, and it is very difficult to drain water for a short time. Therefore, effective measures should be taken to do a good job of mine water prevention and control.展开更多
Integrated geophysical technology is a necessary and effective means for geothermal exploration.However,integration of geophysical technology for large‐scale surveys with those for geothermal reservoir localization i...Integrated geophysical technology is a necessary and effective means for geothermal exploration.However,integration of geophysical technology for large‐scale surveys with those for geothermal reservoir localization is still in development.This study used the controlled source audio‐frequency magnetotelluric method technology for large‐scale exploration to obtain underground electrical structure information and micromotion detection technology to obtain underground wave velocity structure information.The combination of two detection technologies was used for local identification of geothermal reservoirs.Further,auxiliary correction and inversion constraint were implemented through the audio magnetotelluric sounding technology for maximum authenticity restoration of the near‐and transition‐field data.Through these technology improvements,a geothermal geological model was established for the Binhai County of Jiangsu Province in China and potential geothermal well locations were identified.On this basis,a geothermal well was drilled nearly 3000m deep,with a daily water volume of over 2000m3/day and a geothermal water temperature of 51°C at the well head.It is found that predictions using the above integrated geophysical exploration technology are in good agreement with the well geological formation data.This integrated geophysical technology can be effectively applied for geothermal exploration with high precision and reliability.展开更多
Geological environment pollution mainly includes the destruction of topography, vegetation, land resources and groundwater resources. Obviously, strengthening the prevention and control of geological environment pollu...Geological environment pollution mainly includes the destruction of topography, vegetation, land resources and groundwater resources. Obviously, strengthening the prevention and control of geological environment pollution has always been an important part of ecological development. Geophysical exploration technology has played an important role in engineering geological exploration due to its own economy and the comprehensive and rich information of exploration results. Starting from the relationship between engineering geology and geophysical exploration technology, this paper focuses on the application of geophysical exploration method in engineering geological exploration, hoping to bring some practical help to the future engineering geological exploration.展开更多
In China submarine geosciences represents a newly established discipline of oceanography, focusing on the oceanic lithosphere, and its interface with the hydrosphere and biosphere. Recently, supported by the National ...In China submarine geosciences represents a newly established discipline of oceanography, focusing on the oceanic lithosphere, and its interface with the hydrosphere and biosphere. Recently, supported by the National High Technology Research and Development Program and other high-tech development projects, significant progress has been made in the development of advanced technologies and equipment. This en- ables the scientists in China to carry out explorations of the international seabed area in the Pacific Ocean and on the Southwest Indian Ridge. In addition, they have been active in the research activities associated the mid-ocean ridges and western Pacific marginal seas. It is anticipated that this research field will continue to be highly fruitful in the near future.展开更多
文摘In the production process of coal mines, water prevention and control is one of the important factors that affect the safety in production. The water prevention and control effect is fully guaranteed and plays a key role in the safety in production of coal mines. As one of the main energy sources, coal has a large number of mined-out areas due to long-term mining. Due to the differences in geological conditions, it is necessary to apply the comprehensive geophysical exploration technology scientifically and reasonably to provide technical support for water prevention and control. In this paper, the commonly used geophysical techniques are discussed respectively, and the application of integrated geophysical techniques is studied in order to improve the effect of water prevention and control in coal mines.
文摘Water disasters are common disasters in coal mine production. With the continuous increase of coal mining depth, the threat of coal mine water disasters has also increased. Coal mine water disasters will bring great losses to the mine, such as mechanical and electrical equipment rust or damage, if serious, it will lead to casualties. In most cases, the mine rescue work is very difficult after the occurrence of water disasters, and it is very difficult to drain water for a short time. Therefore, effective measures should be taken to do a good job of mine water prevention and control.
基金Geological and Mineral Resources Survey of Metallogenic Belt in the Middle and Lower Reaches of Yangtze River,Grant/Award Number:1212011220540Jiangsu 1:50000 Dingsanwei,Kaishan Island,Yangqiao,Chenjiagang,New Huaihe Estuary,Xiangshui Estuary,Dayou,Xiaojie,DayuJian District,Grant/Award Numbers:Base[2012]02‐014‐009,Base[2013]01‐019‐002,Base[2014]01‐021‐003。
文摘Integrated geophysical technology is a necessary and effective means for geothermal exploration.However,integration of geophysical technology for large‐scale surveys with those for geothermal reservoir localization is still in development.This study used the controlled source audio‐frequency magnetotelluric method technology for large‐scale exploration to obtain underground electrical structure information and micromotion detection technology to obtain underground wave velocity structure information.The combination of two detection technologies was used for local identification of geothermal reservoirs.Further,auxiliary correction and inversion constraint were implemented through the audio magnetotelluric sounding technology for maximum authenticity restoration of the near‐and transition‐field data.Through these technology improvements,a geothermal geological model was established for the Binhai County of Jiangsu Province in China and potential geothermal well locations were identified.On this basis,a geothermal well was drilled nearly 3000m deep,with a daily water volume of over 2000m3/day and a geothermal water temperature of 51°C at the well head.It is found that predictions using the above integrated geophysical exploration technology are in good agreement with the well geological formation data.This integrated geophysical technology can be effectively applied for geothermal exploration with high precision and reliability.
文摘Geological environment pollution mainly includes the destruction of topography, vegetation, land resources and groundwater resources. Obviously, strengthening the prevention and control of geological environment pollution has always been an important part of ecological development. Geophysical exploration technology has played an important role in engineering geological exploration due to its own economy and the comprehensive and rich information of exploration results. Starting from the relationship between engineering geology and geophysical exploration technology, this paper focuses on the application of geophysical exploration method in engineering geological exploration, hoping to bring some practical help to the future engineering geological exploration.
文摘In China submarine geosciences represents a newly established discipline of oceanography, focusing on the oceanic lithosphere, and its interface with the hydrosphere and biosphere. Recently, supported by the National High Technology Research and Development Program and other high-tech development projects, significant progress has been made in the development of advanced technologies and equipment. This en- ables the scientists in China to carry out explorations of the international seabed area in the Pacific Ocean and on the Southwest Indian Ridge. In addition, they have been active in the research activities associated the mid-ocean ridges and western Pacific marginal seas. It is anticipated that this research field will continue to be highly fruitful in the near future.
