Results 181 to 190 of about 7,244 (206)

Stochastic forecasting of mine water inrushes

Advances in Water Resources, 1980
Abstract An event-based stochastic forecasting approach is used to model water inrushes into underground works under karstic water hazard. The stochastic properties of inrushes are related to the statistical properties of fissures in the karstic rock.
Istvan Bogardi, Lucien Duckstein, Antal Schmieder, Ferenc Szidarovszky   +3 more
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Evaluation of water inrush from underlying aquifers by using a modified water-inrush coefficient model and water-inrush index model: a case study in Feicheng coalfield, China

Hydrogeology Journal, 2019
Water inrush from underlying aquifers seriously threatens mining of Permo-Carboniferous coal seams in many North China coalfields. To evaluate the risk of water inrush from underlying aquifers, a modified water-inrush coefficient method—using the water inrush coefficient (T) and geological structure index (G)—and a water-inrush index model (WII model ...
Longqing Shi, Mei Qiu, Ying Wang, Xingyue Qu, Tianhao Liu   +4 more
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Spontaneous inrushes of water in underground mines

International Journal of Mine Water, 1986
Several water inrushes occurring in Italian underground mines were carefully observed in order to study causes and circumstances, of such events and to investigate the possibility of predicting these inrushes.
O Sammarco, Dr Eng
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Experimental research on water inrush in tunnel construction

Natural Hazards, 2015
With the rapid development of underground construction, a large number of tunnels will be built at the positions where unprecedentedly complex geological conditions exist. It results in more and more tunnel water inrush accidents. Study on water inrush becomes more and more important. The water inrush in tunnel construction is the results of water–rock
De-xian Liang, Zhen-quan Jiang, Shu-yun Zhu, Qiang Sun, Zi-wei Qian   +4 more
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Water Inrush Risk Evaluation into the Tanjiaba Tunnel

Applied Mechanics and Materials, 2014
The Tanjiaba tunnel lies in Hurongxi highway in Hubei Province. There are some middle karstified soluble rocks and a fish pool above the tunnel. To avoid the disaster of water inrush into the tunnel, risk evaluation is necessary to guide the construction. Fuzzy mathematics model is put forward to distinguish potentially dangerous parts along the tunnel.
Yi Bo Sun, Man Yao Feng
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Risk Assessment of Water Inrush in Tunnel through Water-Rich Fault

Geotechnical and Geological Engineering, 2017
A fuzzy comprehensive evaluation method based on gray theory is proposed to assess the risk of water inrush in tunnels through water-rich fault. The Grey-Fuzzy method consists of two parts: one is the single factor evaluation matrix which is created by evaluation index and the risk grade membership function, the other one is the weight of each ...
Binbin Zhu, Li Wu, Yaxiong Peng, Weiwen Zhou, Chunhui Chen   +4 more
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Mine Stability and Water Inrush in Coal Mine

2020
This chapter describes three major parts associated with mining stability and mine water inrush: The first part discusses the stability issues related to rock burst in deep underground coal mines, the second part studies the height variations of water-conducting fractured zone in shallow underground coal mines, and the last part presents a numerical ...
Yunliang Tan, Shichuan Zhang, Weiyao Guo, Xuesheng Liu, Baotang Shen   +4 more
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Water inrush and environmental impact of shallow seam mining

Environmental Geology, 2005
Shallow seam mining is very common in China for enhancing coal recovery. However, this may cause a series of severe problems in environment and mining safety in some cases, because the alluvium aquifers are directly above the shallow coal seams. Some typical water and sand inrush incidents resulting from shallow mining in China are analyzed.
Jincai Zhang, Suping Peng
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Water inrush dangerousness evaluation of coal floor from SDM

Proceedings 2011 IEEE International Conference on Spatial Data Mining and Geographical Knowledge Services, 2011
The floor water inrush is a geology hazard in China. Tt is a complex nonequilibrium and nonlinear evolution process which is affected by many factors. Spatial Data mining (SDM) can reveal spatial patterns and features of water inrush. With the SDM technique, the water inrush dangerousness of 9# coal floor of zhangcun coal mine was evaluated. The result
Demin Liu, Daiyong Cao, Shangxian Yin, Yongjun Li, Huiqing Lian   +4 more
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Study on “triangle” water-inrush mode of strong water-guide collapse column

Journal of Central South University, 2016
The water-inrush mechanism of strong water-guide collapse column in coal seam is studied based on the establishment of geological and mathematical models of “triangle” water-inrush mode. The geological background of Shuangliu mine is considered a prototype, similar simulation tests are adopted to analyze the water-inrush rules under this model, and the
Zhen-hua Li, Guo-rui Feng, Chang-zhi Zhai   +2 more
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