Results 1 to 10 of about 4,014 (247)

Study on the effect of layered structure of overlying strata on soil damage in mining areas in the loess covered region of northern Shaanxi

Meitan xuebao
Ecological protection in coal mining areas is a major problem that needs to be solved urgently for high-quality development in the Yellow River Basin. Scientific understanding of the response law of the overlying strata of the coal seam to the surface ...
Shuangming WANG, Shijie SONG, Jiangbo WEI, Lang LIU, Ruilin NIU, Yuanhong LI, Qingyu TAN, Yu TIAN   +7 more
doaj   +1 more source

Integrative solution of stress evolution in overburden roof strata during the coal seam mining by application of complex variable functions methodology

Rock Mechanics Bulletin
Large-scale roof collapse is a major dynamic hazard threatening the safe coal mine operations. Understanding the deformation and failure characteristics of overburden rock strata, as well as deciphering the stress evolution mechanism of overburden rock ...
Yinkai Li, Hongwei Wang, Zhanbin Zhu, Daixin Deng, Naisheng Jiang   +4 more
doaj   +1 more source

Detection of Stratigraphic Structure and Surrounding Buried Faults in Complex Urban Areas: Case Study of East Lake High-tech Zone

CT Lilun yu yingyong yanjiu
Geological information such as stratigraphic structure characteristics, location of hidden faults, geometric characteristics, and overburden thickness in complex urban areas is extremely important for major engineering constructions such as light rail ...
Kun CHANG, Xiaohu DENG, Miao CHENG
doaj   +1 more source

Control mechanism of surface settlement in mining face by high and thick conglomerate

Meikuang Anquan
In order to study the control mechanism of surface subsidence by the high and huge thick conglomerate strata after working face mining, the typical working face of west 11th mining area of Gaozhuang Coal Mine is taken as the background, and the research ...
Dongjing CAO, Guolei LIU, Wenzhao LIANG, Xiqing HAO, Lihua TIAN, Jianjun XUE   +5 more
doaj   +1 more source

Zonal prediction of the heights of water-conducting fracture zones under varying overburden types in North China-type coalfields

Meitian dizhi yu kantan
BackgroundThe gradual increase in the exploitation depth and intensity of coal resources in the North China-type coalfields has caused problems such as overburden movement and damage, as well as fracture evolution.
Dongjing XU, Ruiqing ZHANG, Weifu GAO, Haonan JIANG, Haifeng ZHU, Ye LI, Zhicun XIA   +6 more
doaj   +1 more source

Fracture structure of the overburden in the layered mining of extremely thick coal seams: Developmental patterns of caving zones and hydraulically conductive fracture zones and fracture characteristics

Meitian dizhi yu kantan
ObjectiveThe Zhunnan Coalfield, a coalfield on the southern margin of the Junggar Basin in Xinjiang, boasts abundant coal resources. However, water hazards in mines severely constrain the safe and efficient coal production in the coalfield.
Xin ZHANG, Youkuo CHEN, Hailun MENG, Qifa QIN, Xianggang CHENG, Rongjie HUANG, Hairui DONG, Wenbin SUN, Wei QIAO   +8 more
doaj   +1 more source

Fracturing behavior and fracture field evolution in overburden induced by mining of deeply buried extra-thick coal seam

Meitan xuebao
Revealing the disaster-inducing mechanisms of fracturing instability and the evolution patterns of fracture fields in the overburden during the mining of deeply buried extra-thick coal seams serves as the theoretical foundation for preventing hazards ...
Yi TAN, Shaopu ZHANG, Manchao HE, Hui LI, Wenbing GUO, Yu WANG, Erhu BAI, Chun ZHU, Jun YANG, Hao CHENG, Weiyu GUO, Ranlie WANG, Xinfa CAO, Linmao LI   +13 more
doaj   +1 more source

Analysis of overburden structure and support working resistance of working face in fully-mechanized top coal caving with large mining height in ultra thick coal seam

矿业科学学报, 2017
In order to grasp the overburden structure and support working resistance of working face in fully-mechanized top coal caving with large mining height in ultra thick coal seam, this paper study the ultra thick coal seam in Tongxin coal mine.The fracture ...
Hou Yunbing, He Shangsen, Zhou Dianqi, Han Shuai, Zhou Yu   +4 more
doaj  

Discrete Element Analysis of Grouting Reinforcement and Slurry Diffusion in Overburden Strata

Applied Sciences
Research on the grouting reinforcement mechanism of overburden is constrained by the concealed and heterogeneous nature of geotechnical media, posing dual challenges in theoretical analysis and process visualization.
Pengfei Guo, Weiquan Zhao, Yahui Ma, Huiling Gen   +3 more
doaj   +1 more source

Overburden breakage and surface damage evolution under high-intensity mining of shallow coal seams: evidence from Shendong mining area

Scientific Reports
During high-intensity mining of shallow coal seams, severe overburden movement and surface subsidence can lead to geological hazards like ground fissures.
Huan Zhang, Jie Zhang, Zhuhe Xu, Junwei Zhang, Shuangli Du, Shirong Wei, Xuejia Li   +6 more
doaj   +1 more source