Results 21 to 30 of about 4,791 (276)

Research on Water-Conducting Fractured Zone Height under the Condition of Large Mining Height in Yushen Mining Area, China [PDF]

Lithosphere, 2023
Accurately predicting the development height of the water-conducting fracture zone (HW) is imperative for safe mining in coal mines, in addition to the protection of water resources and the environment.
Dong Feng, Pengfei Hou, Enke Hou, Xiaoshen Xie   +3 more
core   +2 more sources

Calculation of the Height of the Water-Conducting Fracture Zone Based on the Analysis of Critical Fracturing of Overlying Strata

Sustainability, 2022
Accurate division of the water-conducting fracturing zone (WCFZ) in the mining overburden serves as an important basis to evaluate the stability of coal mining under water bodies. Research on the WCFZ is conducive to controlling surface subsidence and realizing safe coal mining under water.
Yi Tan, Weitao Yan, Wenbing Guo
exaly   +2 more sources

Evolution of Overburden Fractures and the Water-Conducting Fracture Zone in Closely Spaced Coal Mine Seams under Highly Water-Rich Aquifers. [PDF]

ACS Omega
Risks of water-related mine incidents are related to water source, pathways, and water inrush intensity. This study aims to clarify the evolution of overburden fractures under repeated mining in closely spaced coal seams and to identify the presence of a connection between the damaged overburden and the overlying highly water-rich aquifer.
Liu X, Zheng L, Liu H, Zuo Y, Ren W, Zhu X, Zhou X.   +6 more
europepmc   +3 more sources

Comparison of prediction models for the development height of water-conducting fractured zone

Meitan kexue jishu, 2023
In order to improve the accuracy of the prediction of the development height of the water-conducting fissure zone, by collecting the measured data of the lead height in the areas with similar geological and mining conditions in the past, the four factors
XUN Bohui, LYU Yiqing, YAO Xing
doaj   +2 more sources

Study on Water-conducting Fracture Height of Shallow Buried Coal Seam with Thick Loose Bed and Thin Base Rock

Meikuang Anquan, 2020
Water-conducting fissures formed in shallow seam mining in thin bedrock are easy to cause water resources damage. The determination of the height of water-conducting fissures is the key to avoid the damage of aquifers.
CHEN Hui, CAO Qijia, WEI Zhao, ZHANG Dongdong
doaj   +2 more sources

Research on development height of overlying water-conducting fault zone in shallow seam mining in Shennan Mining Area

Meikuang Anquan, 2023
Aiming at the fact that the water-conducting fissures in the overlying rock may cut through aquifers and induce water inrush disasters by repeated mining of shallow-buried and short-distance coal seams in Shennan Mining Area, this paper adopts the ...
XIE Danghu, WANG Jianwen2LI Minfeng, GUO Shuquan, WANG Eryun, MA Zongyu, DU Chaojie
doaj   +2 more sources

Study on the development pattern of continuous aquitard water-conducting fracture zones and rock layer detection borehole camera technology [PDF]

Scientific Reports
The northern part of Guizhou Province is rich in coal resources, but mining safety is threatened by water - bearing strata. This study zeroes in on Longfeng Coal Mine in Guizhou Province and delves into the issue of water damage in coal mines under ...
Enyu Xu, Chao Xu, Xijian Li, Weiguang Zhou, Xianzhong You, Youping Peng, Zewei Dong, Chen Zou, Shoukun Chen   +8 more
doaj   +2 more sources

Deformation characteristics of weakly cemented overburden in Western mining areas in China [PDF]

Scientific Reports
Understanding the deformation behavior of weakly cemented overburden in western coalfields is critical for assessing mining-induced instability and groundwater hazards. Taking the 23 − 2 coal seam of Yili No.
Guanyu Zhang, Haozhen Zhang, Guo Li, Juntao Chen, Long Zhao, Guangneng Zhou   +5 more
doaj   +2 more sources

Development and Height Prediction of Fractured Water-Conducting Zone in Weakly Cemented Overburden: A Case Study of Tashidian Erjingtian Mine

Sustainability, 2023
To clarify the development and height of the fractured water-conducting zone of underground mines with weakly cemented overburden, the W8203 working face of the Tashidian Erjingtian Mine in Xinjiang, China, was selected to carry out a case study. Firstly,
Zizhao Zhang, Xiaodong Tan, Lifei Zhang, Tiandong Zhang, Lei Zhang, Kaikai Wang   +5 more
core   +2 more sources

Research on development law of repeated mining overburden fractures in close inclined multiple coal seams [PDF]

Meikuang Anquan
In the field of roof water hazard prevention and control, the evolution height of water conducting fissure zone is one of the important parameters of water hazard prevention.
Xufeng DONG, Weifu GAO, Haifeng ZHU, Wenbin SUN, Yining CAO, Houcheng CHEN   +5 more
doaj   +2 more sources