Results 41 to 50 of about 64,796 (273)
Geofluids, 2022 Recent years have seen the widespread use of a new gob-side entry retaining technology, namely, automatic roadway forming based on roof cutting and pressure relief.
Chenqi Tian +3 more
semanticscholar +1 more source
Numerical methods of geomechanics tasks solution during coal deposits’ development [PDF]
, 2016 Purpose. Generalization of numerical modeling of geomechanical processes in the vicinity of mine workings by finite elements method and making recommendations for substantiation of suitable construction and behavior of rock massif physical model ...
Bondarenko, V +4 more
core +2 more sources
Numerical Simulation of Coupling Support for High-Stress Fractured Soft Rock Roadway in Deep Mine
Advances in Civil Engineering, 2022 Aiming at the difficulties during the support of high-stress fractured soft rock roadway in deep mine, a comprehensive surrounding rock management method of bolt-net-cable-grout coupling support is proposed and the mechanism of interaction between ...
Wenhua Yuan +4 more
doaj +1 more source
The application of grouting reinforcement to the broken surrounding rock of 1366 stoping roadway
矿业科学学报, 2023 This study proposes a fractional grouting reinforcement scheme of the roadway with full section to tackle surrounding rock breakage in the stoping roadway of 1366 working face and roadway deformation, floor heave and support failure.The infiltration ...
Zhang Lixin, Wei Xiujie, Liu Guangchao
doaj +1 more source
Experimental studies on the shear resistance of original coal-shale joint [PDF]
, 2017 Purpose. Experimental study and theoretical modeling of the shear resistance of original coal-shale joint. Methods. A two-segment model was developed to describe the shear resistance-shear displacement curves obtained from the direct shear tests of ...
Dong, H, Guo, B, Wang, L
core +2 more sources
Study on Shape Characteristics of Plastic Zone in Heterogeneous Roadway-Surrounding Rock
Sustainability, 2022 Aiming at the surrounding rock failure of heterogeneous and unequal pressure circular roadways, the approximate analytical algorithm of the plastic zone is proposed.
Jun Li +4 more
semanticscholar +1 more source
Complex function solution for deformation and failure mechanism of inclined coal seam roadway
Scientific Reports, 2022 The stressed environment of the inclined coal seam roadway is complex and changeable, and the damage degree of surrounding rock increases, threatening the safe mining of coal mines.
Xianyu Xiong +3 more
doaj +1 more source
Analyzing kinetics of deformation of boundary rocks of mine workings [PDF]
, 2018 Purpose is to analyze nature of rock deformation and to estimate experimentally state of mine workings being supported under the conditions of areas disturbed by coal mining. Methods. The studies involved field instrumental observations within measuring
Nehrii, S +3 more
core +1 more source
Implementation of probabilistic approach to rock mass strength estimation while excavating through fault zones [PDF]
, 2019 Purpose. The paper addresses the rock mass state estimation while excavating a cross-heading through the area of regional fault “Bohdanivskyi” based on probabilistic approach to assessing the rock strength. Methods.
Babets, D +4 more
core +1 more source
Energies, 2021 In order to solve the problems of roadway stability and easy instability under repeated mining of close-distance coal seam groups, the mechanism and control technology of surrounding rock instability under repeated mining were studied via indoor testing,
Y. Xiong +6 more
semanticscholar +1 more source