Results 131 to 140 of about 1,845,683 (177)

Pressure relief and control technology for gob-side roadway in soft and thick coal seam in kilometer-deep coal mine

Meikuang Anquan
In order to solve the control problems of deformation and failure in soft and thick coal seam in kilometer-deep coal mine, the gob-side roadway in deep loose and weak thick coal seam is taken as the object. Based on on-site investigation and measurement, the obtained the mechanical strength and structural distribution of coal roadway surrounding rock ...
Wenwei MA, Wenxu LIANG
openaire   +1 more source

Distribution law and control of the second invariant of deviatoric stress in gob-side entry retaining. [PDF]

Sci Rep
Jiang D, Guo J, Sun G, Li J, Xu X, Ma Q.
europepmc   +1 more source

Study on Regional Evolution Characteristics of Coal Spontaneous Combustion and Gas Coupling Disaster in Composite Goaf with No-Pillar Mining. [PDF]

ACS Omega
Kong D, Han W, Guo J, Xue K, Zhang J, Zheng Y.   +5 more
europepmc   +1 more source

A multi-field coupled model for gas migration in high-temperature coal seams considering fracture zones and fracture roughness. [PDF]

PLoS One
Jiang S, Zhang M.
europepmc   +1 more source

Research on surrounding rock control technology of roof cutting and pressure relieving for roadside filling in gob-side entry retaining of large mining height panel. [PDF]

Sci Rep
Weiyong L, Shengjun L, Yaohui S, Tao G, Wansheng M, Xiaowu Z.   +5 more
europepmc   +1 more source

Mechanism and control of pillar bidirectional reinforcement during pre-cut roof gob-side entry driving in gently inclined coal seams. [PDF]

Sci Rep
Chen D, Yang X, Zhang Z, Zhao W, Jing X, Shan Z, Chang J, Zhang Z.   +7 more
europepmc   +1 more source

Mechanism and control strategies for asymmetric floor heave in extra-thick coal seam roadways under high stress. [PDF]

Sci Rep
Zhang J, Sun J, Wang B, Yang T, He Y, Gao S, Qin G, Zhang Y.   +7 more
europepmc   +1 more source

Simulation of directional crack propagation by energy-absorbing blasting in deep gob-side entry retaining under different lateral pressure coefficients. [PDF]

PLoS One
Liu N, Guo C, Bao S, Wang T, Zhang F, Qin Z.   +5 more
europepmc   +1 more source

Research and application on the "multi-layer" filling body with foamed expansion filling material for gob-side entry retaining gateway. [PDF]

Sci Rep
Zhao L, Han Y, Li X, Wang S, Jing G, Yu Z.   +5 more
europepmc   +1 more source

Roadway roof shear slip movement mechanism induced by the strong dynamic pressure while ultra-thick coal seam mining. [PDF]

Sci Rep
Liu C, Wang F, Zuo Y, Wang C, Gao C, Lu Y, Sun W, Hao W, Tang T, Zhang Y.   +9 more
europepmc   +1 more source