Results 41 to 50 of about 112 (86)

Numerical simulation of efficient water drainage with long-distance, near-horizontal boreholes in roof aquifer of Jurassic coal seams in Northern Shaanxi

Meitan kexue jishu
The drainage effect of the roof water before mining on the working face determines the layout of the mine's drainage system, which affects the safety of mine water prevention and control.
Zhaolai HUA, Hao HUANG, Lu WANG, Zenglin LI, Yang LYU, Jiankun XUE, Jie SUN, Le HAN, Shuaifeng REN, Zhizhou WANG, Shuxuan WANG, Zhenfang ZHOU   +11 more
doaj   +1 more source

Quantitative Evaluation Method and Response Mechanism of Shallow Groundwater in Multi-Mine Mining of “Soil–Rock” Composite Water-Resisting Strata

The sustainability of shallow groundwater systems, pivotal to maintaining ecosystem equilibrium and facilitating the sustainable development of mine sites, is the core of various dynamic indicators in response to mining activity and mining area planning.
Shuai Zhang, Guorui Feng, Yujiang Zhang, Bingyuan Cui, Dongsheng Zhang   +4 more
core   +1 more source

Groundwater renewal capacity of Jurassic coalfields in northern Ordos Basin

Meitan xuebao
With the westward shift of the focus of coal mining, the Jurassic coalfield in the northern Ordos Basin has become an important energy security base in China.
Jian YANG, Yue PU, Hui LI
doaj   +1 more source

Stability analysis of filling replacement filling body of interface coal pillar

Meikuang Anquan
In order to study the stability of filling body in the process of filling and replacement of interface coal pillar, based on the geological conditions of a mine in Yushen Mining Area of Shaanxi Province, the calculation models of filling body load during
Bingchao ZHAO, Zhonghao YANG, Jingbin WANG, Haonan CHEN, Ruifeng WANG, Yongsheng TUO   +5 more
doaj   +1 more source

Research and application of top coal caving characteristics at end of fully mechanized caving working face in hard and thick coal seam with super large mining height

Meitan xuebao
Fully-mechanized caving mining with super-large mining height is an effective method for safe and efficient mining of thick and extra-thick coal seams. Aiming at the problem of poor top coal caving ability at the end of fully-mechanized caving mining in ...
Ying MA, Shijun LIU, Ziyan MA, Duanzhi MA   +3 more
doaj   +1 more source

Mechanisms behind consolidation-induced water release from effective impermeable soil layers and mine water inflow prediction in coal mining

Meitian dizhi yu kantan
BackgroundIn the Yushen mining area, coal mining is gradually shifting toward areas with thick soil layers. This leads to continuous water release from the saturated soils above the hydraulically conductive fracture zones, thereby significantly ...
Tao LI, Ying GAO, Limin FAN, Junwei YANG
doaj   +1 more source

A selection methodology on reasonable width of stabilized coal pillar for retracement channel in longwall working face

Frontiers in Earth Science
In this paper, the No. 30201 working face of a specific colliery was determined as the study area in the Yushen mining area, China. The objective of this paper is to determine the optimal position for pressure regulation measures during the final mining ...
Pengfei Shan, Pengfei Shan, Pengfei Shan, Zheng Meng, Zheng Meng, Xingping Lai, Xingping Lai, Xingping Lai, Xiongfei Xue, Chenwei Li, Chenwei Li, Jindong Wang, Wei Li, Wei Li, Long Zhang, Long Zhang, Bojia Xi, Bojia Xi, Hongjun Jiang   +18 more
doaj   +1 more source

Characteristics and mechanism of strong dynamic load mine pressure in large mining height full-mechanized caving face with multiple thick and hard roof

Meitan xuebao
In view of the problems of strong mine pressure such as rapid shrinkage of hydraulic support column and easy support crushing in working face under the fully mechanized caving face with large mining height in multi-layer thick and hard roof of extra ...
Zhen ZHANG, Zhizeng HUANG, GANG XU, Xiaogang LIU, Qianjin LIU, Tielin ZHAO, Xingyu LIN   +6 more
doaj   +1 more source

Analysis of the influence of different rock (soil) bodies on the failure characteristics of overlying rock in Yushen mining area

Abstract In order to analyze the influence of different rock ( soil ) bodies on the failure mode of overburden rock in Yushen mining area, three types of overburden rock structures, including red soil-weathered bedrock-normal bedrock, weathered bedrock-normal bedrock and normal bedrock, were selected in the range of mining-induced cracks.
openaire   +1 more source

Time-Dependent Rheological Properties of Cemented Aeolian Sand-Fly Ash Backfill Vary with Particles Size and Plasticizer. [PDF]

Materials (Basel), 2023
Yang B, Zheng Z, Jin J, Wang X.
europepmc   +1 more source