Results 61 to 70 of about 3,569 (218)

Evaluation of slope stability in open pit based on 3D geological modeling and DFN

Shuiwen dizhi gongcheng dizhi
This study addressed the limitations of conventional numerical simulation techniques for discrete rock masses and joints by introducing a novel method for assessing slope stability in open-pit mines.
Yongji CHEN, Tingke YAN, Cong LIU
doaj   +1 more source

Mechanisms of Roadway Instability and Coupled Control Technology for Working Face Passing Through Fault Zones

Energy Science &Engineering, EarlyView.
This study mainly explores the instability characteristics of roadways near faults in the working face. Taking the 51104 transportation roadway of the 51104 working face in Shengxin Coal Mine as the main research object, through theoretical analysis, borehole inspection, numerical simulation and on‐site mine pressure observation, the instability ...
Shuaifeng Yin, Yitao Yan, En Wang, Xubo Zhao, Kanglei Han   +4 more
wiley   +1 more source

Multiphysics Coupled Response of Stress and Seepage in Coal Under Borehole Disturbance and Optimization of Borehole Parameters

Energy Science &Engineering, EarlyView.
One‐way FLAC3D‐COMSOL coupled modeling and field validation show that a 150 mm borehole radius with 5 m spacing provides the best coordination of plastic‐zone expansion, stress relief, permeability enhancement, and gas‐pressure attenuation, increasing the pure gas drainage rate by 35.4%. ABSTRACT To rationally determine the borehole radius and borehole
Yewu Bi, Yichen Li, Yangyang Guo, Yikai Zhang, Jiazhi Sun, Kangnan Li, Yongpeng Fan, Qixian Li   +7 more
wiley   +1 more source

Study on Deformation Law of Crossing Layer Drilling Superimposed Floor Roadway

Energy Science &Engineering, Volume 14, Issue 6, Page 2752-2771, June 2026.
Based on deformation law of crossing layer drilling superimposed floor roadway, low dip angle drilling is particularly susceptible to complications such as borehole blockage and collapse. ABSTRACT Floor extraction roadway crossing layer drilling is a pivotal strategy for gas control in areas prone to coal and gas outbursts.
Xiao Liu, Bo Li, Jiawei Xie, Xiaoming Ni, Shaoren Wei, Chengtao Yang, Yubo Zhang, Haixiao Lin, Wei Zhao, Tao Wang   +9 more
wiley   +1 more source

Research on Deformation Prediction of Small Interval Tunnel Based on Machine Learning and Numerical Simulation

Energy Science &Engineering, Volume 14, Issue 5, Page 2380-2392, May 2026.
This study leverages machine learning algorithms—specifically artificial neural networks (ANN) and genetic programming (GP)—to forecast and analyze variations in vault settlement measurements during excavation of small interval tunnel. A settlement prediction model was developed and validated through comparative analysis with regression to evaluate the
Wenjie Zhai, Jia Xue, Yongjie Fu, Beichen Yu, Yan Zhu, Man Yuan, Mingbo Chi, Zhentao Li   +7 more
wiley   +1 more source

Slope reinforcement design based on GeoStudio and FLAC3D

, 2022
Slope stability of open pit mines has been a hot issue of economic and safety concern. In order to reduce the accidental casualties caused by slope instability, targeted reinforcement solutions should be proposed for them.
Huang, Zhian, Yu, Rongxia, Yang, Zhiquan
core   +1 more source

Analysis of Mechanical Properties of Coal Pillar Dam in Mine Goaf

Meikuang Anquan, 2020
To study the mechanical properties changes and deformation of the underground coal pillar dam body in the mine goaf in the underground working environment, the Lijiatun Coal Mine is taken as the research background, and the laboratory similar simulation ...
LI Yumeng, WANG Wencai
doaj   +1 more source

A study on collapse law of soil cave with different rainfall rates based on FLAC3D

Carsologica Sinica, 2022
Frequent heavy rainfall can lead to large-scale collapse of karst soil caves. Quaternary strata are widely distributed in the karst area of Lingui district, Guilin City, among which the subsidence area of the silty clay overlay with a one-dimensional ...
Mingming XUE, Xuejun CHEN, Yu SONG, Xiaotong GAO, Hui LI, Xiaohui GAN, Mingzhi ZHANG, Zongyuan PAN, Lingming TANG   +8 more
doaj   +1 more source

Stress Redistribution Mechanisms and Subsidence Control of Fluidized Gangue Backfilling in Underground Coal Mining: Integrated Experimental and Numerical Investigation

Energy Science &Engineering, Volume 14, Issue 5, Page 2476-2498, May 2026.
Fluidized gangue backfilling controls mining subsidence through stress redistribution in composite backfill‐pillar systems, reducing surface settlement and stress concentrations. Multi‐scale experimental and numerical analysis provides quantitative design parameters for optimizing ground control in sustainable underground coal mining operations ...
Weilong Zhang, Jie Zhang, Yuanzhen Zhang, Wenjing Liu, Liang Li, Deyi Nan, Guannan Zhao, Chen Yang, Haiqing Bian, Hua Shao, Xiao Zuo, Changtai Zhou   +11 more
wiley   +1 more source

Tunnel excavation based on FLAC3d numerical simulation

Academic Journal of Science and Technology
 A semi-circular arch straight wall tunnel with a span of 10m, a side wall height of 5m and a buried depth of 500m is excavated in a class IV surrounding rock. Assuming that the surrounding rock is an ideal elastoplastic material, the following problems are analyzed by using finite element or finite difference method: the arch roof subsidence and the ...
Shihao Guo, Bangbang Mu, Mingyang Zhao, Huiyan Wang   +3 more
openaire   +1 more source