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13 Result(s)
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Qisheng **n
Hydrogeology
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Article
Sodium Carboxymethyl Cellulose and Fe-Modified Nano-FeS for Enhancing Sorption of Thallium from Water
Due to the high toxicity of thallium (Tl), Tl-containing wastewater has caused severe environmental problems. In this study, we have developed a new sodium carboxymethyl cellulose (CMC)–modified nano-FeS mater...
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Article
Water Hazard Control Technology Based on Integral Drilling and Controllable Grouting in Coal Mines
Water hazard control in China’s underground coal mines is complicated. Drilling and controllable grouting have been integrated to provide accurate and efficient water control. Surface directional drilling, sur...
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Book
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Chapter
Technologies in Sealing Massive Karst Conduits in Restoration of a Flooded Open Pit Quarry in West Virginia, United States
This case study describes the design and construction of a multi-material grout curtain to mitigate a major water inrush through karstic conduits from a river to a nearby limestone quarry. A total of over 12,8...
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Chapter
Investigation and Prevention of Water Hazards from Old Mine Pools in Ordos
Early mines in Ordos mainly used the “room-and-pillar” or “residual pillar” coal mining method, which is known for low resource recovery rate and poor safety and reliability. The mines were poorly equipped wit...
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Chapter
Water Hazards in Coal Mines and Their Classifications
Mine water hazards are often caused by mine water inrushes. Mine water inrush is a phenomenon in which a large volume of water unexpectedly gushes into underground workings or open pit mines when tunneling or ...
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Chapter
Modeling of Groundwater Flow in Karst Aquifers for Mine Water Control
Groundwater modeling, based on realistic conceptual site models, is a powerful tool for solving groundwater related problems resulting from both mining operation and mine closure. Modeling applications for min...
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Chapter
Prevention and Control of Mine Water Hazards from Overlying Aquifers
Hujiahe Mine is in the Binchang Mining area of Huanglong Coalfield with a designed annual output of 5.0 Mt/a. The mine adopts vertical shaft and single level development and uses fully mechanized mining method...
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Chapter
Best Practices in Water Hazards Control in Coal Mines
These best practices are to strengthen the prevention and control of water in coal mines, prevent and reduce water hazards, and ensure the safety of coal mine workers. These practices comply with the “Safe Pro...
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Chapter
Impact of Open Pit Mining on Karst Springs
Much of the mining and quarrying conducted in karst areas is for the rock itself. Some carbonate rocks contain valuable supplies of water, oil, and gas. They may weather to form bauxite deposits and host ore d...
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Chapter
Mine Water Inrush Mechanisms and Prediction Methods
The study of mine water inrush can be traced to the 1940s when a Hungarian engineer, Weg Frence, proposed the concept of relative water-resisting layer aiming at the karst water inrush from coal floors (Qian e...
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Chapter
Prevention and Control of Mine Water Hazards from Underlying Aquifers
**ngtai Dongpang Mine of Jizhong Energy Co., Ltd. is located approximately 10 km southwest of Neiqiu County, Hebei Province. The #2 coal seam is the primary mining target, while the #9 coal seam is the seconda...
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Chapter
Environmental Impact Assessment in Hongliulin Coal Mine
Hongliulin mining area is bordered by the coal seam outcrop in the east, the **jie mine field and Liangshui**g mine field in the Yushen mining area in the south, the Erlintu exploration area in the west, and...
