Results 241 to 250 of about 182,784 (297)

An innovative strata movement model for predicting overlying strata deformations

Geotechnical and Geological Engineering, 2020
The overlying strata in mining could move, deform and break with the advancement of the underground mining operations and form the “three-vertical-zones” over the mined-out areas. In this paper, the influence function method based to predict the surface subsidence is innovatively introduced to establish the movement model of subsurface strata over ...
Cheng Wang, Siyuan Li
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Predicting Underground Strata Movements Model with Considering Key Strata Effects

Geotechnical and Geological Engineering, 2017
Longwall coal mining causes a large scale of subsidence in both overlying strata and ground surface. No matter where subsidence or deformation happened, its damaging effects to underground mining work or surface infrastructures are not anticipated. To accurately predict surface subsidence over the mining area, surface subsidence prediction models based
Jianwei Cheng, Gang Zhao, Siyuan Li
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Strata movement and fracture evolution characteristics in adjacent seam mining

Arabian Journal of Geosciences, 2021
The mining-induced stress distribution and fracture characteristics of overlying strata in the lower coal seams are different from those in single coal seam mining. Based on the distribution of the mining-induced fracture elliptical parabolic zone in a single coal seam, the dynamic distribution equation is deduced for the mining-induced fracture ...
Hai-feng Ren, Peng Cao, Xue-wen Zhao
openaire   +1 more source

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