Results 31 to 40 of about 182,784 (297)
Applied Sciences, 2019 By employing the longwall mining method, a series of intensive strata structure responses and activities will be induced including stress redistribution, fracture extension and strata movement.
Jiaming Shu +4 more
doaj +1 more source
Scientific Reports, 2022 The deformation and movement characteristics of high-level key stratums in overlying strata are important for estimating ground subsidence and understanding failure characteristics of ultrathick strata during mining.
Xiaozhen Wang +3 more
doaj +1 more source
An Innovative Technology for Monitoring the Distribution of Abutment Stress in Longwall Mining
Energies, 2021 Fracturing roofs to maintain entry (FRME) is a novel longwall mining method, which has been widely used in China, leading a new mining revolution. In order to research the change law of side abutment pressure and movement law of overlying strata when ...
Zhibiao Guo +4 more
doaj +1 more source
Accretionary Tectonics of the North American Cordillera [PDF]
, 1983 Continental geology stands on the threshold of a change that is likely to be as fundamental as plate-tectonic theory was for marine geology. Ongoing seismic-reflection investigations into the deep crustal structure of North America are verifying that ...
Saleeby, Jason B.
core +2 more sources
Energies, 2021 Numerous room-and-pillar mining goaf are apparent in western China due to increasing small coal mining activities, which causes the collapse of the overlying coal pillars and the occurrence of strong ground pressure on the longwall face and surface ...
Dan Yu +4 more
doaj +1 more source
Layout timing of mining roadways considering goaf and roof stability
Frontiers in Earth Science, 2023 Reasonable roadway layout timing can effectively reduce the deformation of the rock surrounding the roadway and relieve mining and excavation tension.
Fang Yuan +7 more
doaj +1 more source
Relationship between Movement Laws of the Overlaying Strata and Time Space of the Mined-Out Volume
Geofluids, 2020 The study and accurate prediction of the movement of overburden rock mass and surface subsidence are crucial for a safe production in metal mines. This study investigates the relationship between the movement laws of overlaying strata and the time space ...
Xiang Yu +5 more
doaj +1 more source
Scientific Reports, 2022 Height identification of water-permeable fractured zone (WPFZ) is one of the decisive influence factors for mining safety, especially in some specific conditions, such as mining under aquifer.
Zhiqiang Wang +4 more
doaj +1 more source
Distant interaction of rock mass clusters around underground opening [PDF]
, 2017 Purpose. To experimentally prove the fact of distant interaction between rock clusters during the irreversible displacements of rock mass. Disintegration of the rock mass does not necessarily imply loss in underground working stability.
Diedich, I +3 more
core +3 more sources
Advances in Civil Engineering, 2020 Surface well deformation and failure in a mining area are a key issue challenging the surface well gas extraction technique. To provide information for the design of gas extraction surface wells in mining areas, the deformation and failure of surface ...
Junhui Fu +3 more
doaj +1 more source