Results 51 to 60 of about 4,791 (276)

Study on development law of water-conducting fault zone in deep gently inclined double coal seam mining

Meikuang Anquan, 2022
In order to study the development characteristics of water-conducting fracture zone in deep-buried gently inclined multi-coal seam mining, taking the overlapping mining area of 2-1 coal and 2-2 coal in Shicaocun Coal Mine as the research object, through
HOU Enke, LIU Bo, LONG Tianwen, XU Wei, WEI Qiming, MA Jinyong   +5 more
doaj   +1 more source

Adaptive filtering of microseismic data for monitoring a water-conducting fractured zone in a mine

Scientific Reports, 2022
AbstractWater-conducting fractured zones in a rock mass can cause problems in mining. Attempts have been made to monitor their development using microseismic signals. However, due to the lack of prior information, it is difficult to filter out mixed low-frequency interference with traditional denoising methods.
Hongjiang Li, Liang Han, Donglin Dong
openaire   +3 more sources

Water Inrush Mechanism During Mining Adjacent to Large Water-Conducting Faults

Water
In mining operations, the rock mass located between the water-conducting fault fracture zone and the waterproof protective coal column is highly susceptible to damage, which may result in sudden water inrush disasters.
Luyuan Wu, Dan Ma, Feng Du, Zhenhua Li, Jiufang Han, Qiang Li, Xiaofei Gong, Rui Qiao   +7 more
core   +2 more sources

Characteristics of overlying rock mining failure and evaluation of water - sand controlling performance in thin bedrock areas

Meitan kexue jishu, 2023
Aiming at the problem of water and sand collapse during mining under the near loose aquifer in the exposed area of shallow coal seams, and taking the 3I126 working face of Luxi Coal Mine as the engineering background, a combination of physical simulation,
Qianwen LI, Jianjun SHEN, Huide ZHANG, Zeyu SHANGGUAN   +3 more
doaj   +1 more source

A prediction model for height of water-conducting fracture zone in fully mechanized caving of 3# coal seam in Tengzhou Mining Area

Meikuang Anquan, 2022
In order to accurately predict the development height of water-conducting fracture zone in the roof of fully mechanized caving coal of No.3 coal seam in Tengzhou Mining Area, based on the measured data of water-conducting fracture zone height and main ...
CAO Shiyou, DONG Fangying, CHEN Dalin, ZHANG Lifeng, XU Debao, WANG Song, WANG Peng, YIN Huiyong, ZHENG Yongjie   +8 more
doaj   +1 more source

Research on the predicted height of water-conducting fracture zones based on the BO-RFR model and SHAP analysis. [PDF]

Sci Rep
Qiu M, Wen Y, Teng C, Shi M.
europepmc   +3 more sources

Prediction of the Height of Fractured Water-Conducting Zone: Significant Factors and Model Optimization

Water, 2023
Predicting the height of the fractured water-conducting zone (FWCZ) can be challenging due to their significant grey characteristics and the difficulty in scientifically selecting relevant influencing factors. To address this issue, we utilized the Pearson correlation analysis method and the grey entropy correlation analysis method to identify the ...
Linjun Gu, Yanjun Shen, Nianqin Wang, Haibo Kou, Shijie Song   +4 more
openaire   +1 more source

Electrical Anisotropic Response of Water Conducted Fractured Zone in the Mining Goaf

IEEE Access, 2016
Based on the Maxwell equation, the occurrences of fractured zones are studied through the galvanic method. The electrical and magnetic fields are first derived in the spatial domain. To simplify the calculations, the computational formulas of the electrical fields in the spatial domain are transformed into the wavenumber domain by the Fourier transform.
Benyu Su, Reza Malekian, Jingcun Yu, Xihui Feng, Zhixin Liu   +4 more
openaire   +2 more sources

Verfication of matrix diffusion by means of natural decay series disequilibria in a profile across a water-conducting fracture in granitic rock

, 1989
Data from a rock drillcore, taken perpendicular to a water-bearing fracture in crystalline rock, clearly indicate water-rock interactions in and around the fracture.
W.R. Alexander, A.B. MacKenzie, R.D. Scott, I.G. McKinley   +3 more
core   +2 more sources

Quantitative Characterization of Overburden Rock Development Pattern in the Goaf at Different Key Stratum Locations Based on DEM

Advances in Civil Engineering, 2021
The overburden rock mining fissures are the main cause of coal spontaneous combustion, gas pooling, and mine water inrush caused by goaf air leakage.
Xiaoqiang Zhang, Bolin Hu, Jiaxing Zou, Chuandong Liu, Yuanfan Ji   +4 more
doaj   +1 more source