Results 11 to 20 of about 182,784 (297)
Energy Science & Engineering, 2020 In underground mining operations, the overlying strata move, deform, and crack as the underground working face advances due to strata breakage, failure, and subsidence, forming a “vertical three zone” over the mined out area.
Jianwei Cheng +6 more
doaj +2 more sources
Numerical modelling of strata movement at footwall induced by underground mining
International Journal of Rock Mechanics and Mining Sciences, 2018 Abstract During metal mining, the deformation and failure of rock mass are very important factors that dominate rock movement and zoning. Numerical modelling provides a feasible way to study the deformation and failure of rock mass. In this study, a numerical method of UDEC was adopted to study strata movement mechanism influenced by NWW-trending ...
Guanwen Cheng +6 more
openaire +4 more sources
Applied Sciences, 2023 As a green, safe, and efficient method of coal development, underground coal gasification (UCG) technology has gradually moved from the experimental stage to the industrial production stage.
Xiaopeng Liu, Liangji Xu, Kun Zhang
doaj +1 more source
Applied Sciences, 2023 Overlying strata movement has an important effect on the stability of coal along goaf. In order to study the impact of overlying strata movement on the stability of coal during fully mechanized top-coal caving mining, a simulation experiment was ...
He Ren +4 more
doaj +1 more source
Road and bridge construction across gypsum karst in England [PDF]
, 2002 Gypsum karst problems in the Permian and Triassic sequences of England have caused difficult conditions for bridge and road construction. In Northern England, the Ripon Bypass crosses Permian strata affected by active gypsum karst and severe subsidence ...
Anthony H Cooper +20 more
core +3 more sources
Meitan xuebao, 2023 The deformation, fracture, and movement mode of rock strata are greatly related to underground pressure, surface subsidence, etc. The fracture modes of the thin rock stratum and thick rock stratum are significantly different.
Jianping ZUO +3 more
doaj +1 more source
Energy Exploration & Exploitation, 2023 To improve the coal recovery rate, paste backfill mining was used for 3# coal seam under the industrial square in Panji No.4 Coal Mine. Theoretical analysis, numerical simulation, and similar simulation were applied to study the underground pressure behavior and the overlying strata movement. Results demonstrate the following. (a) Caving mining exerts
Zhihua Li +5 more
openaire +2 more sources
Sedimentology and kinematics of a large, retrogressive growth-fault system in Upper Carboniferous deltaic sediments, western Ireland [PDF]
, 2004 Growth faulting is a common feature of many deltaic environments and is vital in determining local sediment dispersal and accumulation, and hence in controlling the resultant sedimentary facies distribution and architecture.
Busch D.A. +12 more
core +1 more source
A Case Study of Surface Borehole Wall Dislocation Induced by Top-Coal Longwall Mining
Energies, 2017 Underground coal extraction causes failure and movement of overlying strata, which could also result in the dislocation of vertical surface boreholes. Investigating the correlation between the dislocation of surface boreholes and the broken of overlying ...
Jinfeng Ju, Jialin Xu, Jingmin Xu
doaj +1 more source
Study on the shear movement law of overlying strata by slice mining
Energy Science & Engineering, 2020 Based on the analysis of shear movement characteristics of overlying strata under mining effect, a quantitative calculation model for shear displacement in the along‐strike and down‐dip directions of the overlying strata is established.
Junhui Fu +3 more
doaj +1 more source