Results 261 to 270 of about 16,961 (284)

Experiment simulation of hydraulic fracture in colliery hard roof control

Journal of Petroleum Science and Engineering, 2016
Abstract Hydraulic fracture geometry is of paramount importance to enhance fracture effect in colliery hard roof control. Near wellbore complexity often resulted in low lateral dimension of induced fracture hence the fracking effect of the treatment.
null Cong Lin, null Jianqiang Deng, null Yaoru Liu, null Qiang Yang, null Hongfei Duan   +4 more
openaire   +1 more source

Numerical Study of the Mechanism of Dense Drillings for Weakening Hard Roofs and its Application in Roof Cutting

Rock Mechanics and Rock Engineering, 2023
Ze Xia, Qiangling Yao, Chuanjin Tang, Zhaohui Chong, Qiang Xu, Junqiang Ma, Zichang Liu   +6 more
openaire   +1 more source

STABILITY OF UNDERGROUND STRATIFIED HARD ROCK ROOFS

1998
A. I. SOFIANOS, A. P. KAPENIS
openaire   +1 more source

Features of in-situ stresses in coal layers with hard roofs

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1993
openaire   +1 more source

Ground response and failure mechanism of gob-side entry by roof cutting with hard main roof

Journal of Central South University
Heng-zhong Zhu, Lei Xu, Zhi-jie Wen
openaire   +1 more source

Application of solid backfilling to reduce hard-roof caving and longwall coal face burst potential

International Journal of Rock Mechanics and Minings Sciences, 2016
Jixiong Zhang
exaly  

Target Stratum Determination of Surface Hydraulic Fracturing for Far-Field Hard Roof Control in Underground Extra-Thick Coal Extraction: A Case Study

Rock Mechanics and Rock Engineering, 2018
Yiyu Lu, Binwei Xia, Lu Yiyu
exaly  

The mechanism of roadway formation by pressure relief of advanced gas-tangent of hard roof

International Journal of Mining and Mineral Engineering, 2022
Wentao Xu, Zhao Liu, Zhuonan Liu
openaire   +1 more source

Features of in–situ stresses in coal layers with hard roofs

Bai Shiwei, Liang Zuo Yuan, Wang Kejun
openaire   +1 more source

In situ investigations into mining-induced hard main roof fracture in longwall mining: A case study

Engineering Failure Analysis, 2019
Xuehui Li
exaly