Results 121 to 130 of about 670,391 (188)

Bolt-Cable-Mesh Integrated Support Technology for Water Drenching Roadway in Thick Coal Seam. [PDF]

ACS Omega, 2022
Jia C, Li S, Fan C, Luo M, Zhou L, Pu Z, Yang L.   +6 more
europepmc   +1 more source

Fractal characteristics of overburden fissures in shallow thick coal seam mining in loess gully areas. [PDF]

PLoS One, 2022
Li J, Guo X, Wu X, Chen S, Zhang N.
europepmc   +1 more source

Study on the Evolution of Fault Permeability and the Retention of Coal (Rock) Pillar under the Mining Conditions of Thick Coal Seam in the Footwall of Large Normal Fault. [PDF]

ACS Omega, 2023
Yin H, Tang R, Xie D, Lang N, Li S, Zhang X, Cheng Y, Wang S, Li A.   +8 more
europepmc   +1 more source

Research on Gas Extraction and Cut Flow Technology for Lower Slice Pressure Relief Gas under Slice Mining of Extra-thick Coal Seam. [PDF]

ACS Omega, 2022
Shi Z, Ye D, Hao J, Qin B, Li G.
europepmc   +1 more source

Cable Bolting Based depillaring of a Thick Coal Seam in Single Lift : A case Study

, 2015
This paper provides basics of “cable bolting based thick seam depillaring” developed at CSIR-CIMFR to meet the technical challenges arising during underground extraction of a thick coal seam of India.
Kumar, Rakesh, Mishra , A.K., Singh, Amit Kumar, Singh, Arun Kumar, Singh , Rajendra   +4 more
core  

Asymmetric deformation law and differentiated control technique for the roadway of an isolated working face in an extra-thick coal seam. [PDF]

Sci Rep
Wu H, Gong P, Zhao T, Bai L, Yan J, Liu A.   +5 more
europepmc   +1 more source

Study on rockburst mechanism and risk identification for isolated working face in extra-thick coal seam fold zone. [PDF]

Sci Rep
Xie Y, Cao A, Li G, Zhao W, Zhang C, Feng Z.   +5 more
europepmc   +1 more source

Study on the rational position of externally offset mining roadway in the lower split during layered mining of a thick coal seam. [PDF]

Sci Rep
Chen X, Liu Y.
europepmc   +1 more source

Failure Mechanism and Risk Evaluation of Water Inrush in Floor of Extra-Thick Coal Seam

In this paper, we investigate the evolution characteristics of floor failure during pressured mining in extra-thick coal seams. A mechanical expression relating floor failure depth to seam thickness is established based on soil mechanics and mine ...
Guoan Wang, Xu Wang, Qixing Li, Shuqian Li, Shangxian Yin, Wei Xu, Min Cao, Huiqing Lian   +7 more
core   +1 more source

Study on the floor heave mechanism and control technology for the gob-side roadway in the stopping mining area of thick coal seam. [PDF]

Sci Rep
Hao X, Xu L, Ma C, Chen J, Yao X, Xiao C, Ma Y, Wang Y, Lian H.   +8 more
europepmc   +1 more source