Results 71 to 80 of about 597,919 (179)

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, Volume 5, Issue 3, Page 787-808, September 2026.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

A study of the mechanical structure of the direct roof during the whole process of non-pillar gob-side entry retaining by roof cutting

Energy Exploration & Exploitation, 2020
The non-pillar entry (roadway) retained by roof cutting serves the two adjacent working faces. As compared with the conventional mining roadways, the roadway retained by roof cutting has a longer life cycle and receives more complicated influence from ...
Xiao Liu, Xinzhu Hua, Peng Yang, Zhiguo Huang   +3 more
doaj   +1 more source

Study on Applicability of Filling Type Pressure Relief Rigid-flexible Coupling Support Technology in Deep High Stress Roadway

Meikuang Anquan, 2020
In view of the problem that the surrounding rock is disturbed severely and the pressure relief deformation is difficult to control in the support technology of pressure relief hole of deep high-stress roadway, this paper takes Beijing Changgouyu Mine as
WANG Jie, REN Jie
doaj   +1 more source

Gaborlet‐guided sparse filtering: A novel intelligent method for lithology identification by vibration signals while drilling

Deep Underground Science and Engineering, Volume 5, Issue 3, Page 657-668, September 2026.
The flowchart illustrates rock specimen testing, vibration signal acquisition, and feature extraction with Gaborlet and sparse filtering for classification. Abstract Traditional lithology identification methods mainly rely on core sampling and well‐logging data.
Jian Hao, Danqi Zhang, Zhenqi Song, Jinrui Wang, Qi Wang, Heqing Liu   +5 more
wiley   +1 more source

Roadway Safety Institute: Human-Centered Solutions to Advance Roadway Safety 2013-2015

, 2016
This biennial report highlights research, education, and technology transfer activities by RSI from 2013 to 2015 and includes a summary of research projects.Roadway Safety Institute. (2016).
Roadway Safety Institute
core  

Deformation Law and Control Technique of Surrounding Rock in Gob-side Entry Driving Under Driven Heading for Adjacent Advancing Coal Face Conditions

Meikuang Anquan, 2020
To solve the problem of large deformation and difficult support of surrounding rock in roadway under driven heading for adjacent advancing coal face conditions, taking the transport of 9104 working face of Gaoping Qiyi Coal Mine as an example, the ...
CHEN Xiaoxiang, WANG Yiliang, ZHANG Tian
doaj   +1 more source

Fracture distribution and deformation mechanism of surrounding rock in two-way extremely unequal pressure soft rock roadway

Meitan xuebao
The failure of butterfly plastic zone in roadway surrounding rock is an important reason for the large deformation of roadway surrounding rock. In recent years, it has attracted the attention of roadway support workers.
Weijun WANG, Yujie MA, Lei FAN, Chao YUAN, Hai WU, Xinyu TIAN   +5 more
doaj   +1 more source

Roadway Safety Institute: Summary Report 2013-2019

, 2019
This summary report highlights Roadway Safety Institute (RSI) research, education, and technology transfer activities from 2013 to 2019 and includes a summary of research projects.
Roadway Safety Institute
core  

Numerical Study on Deformation and Failure Characteristics of Rectangular Roadway

, 2023
In the practical processes of coal mines and tunnel, rectangular roadways are widely used in the underground environment. However, the stress distribution law of the rock mass around the rectangular roadways is relatively complicated that is influenced ...
Zhaolong Li, Baoyang Wu, Junting Guo, Xuejia Li, Yanzhao Zhu   +4 more
core   +1 more source

Numerical simulation of roadway deformation and failure under different degrees of dynamic disturbance. [PDF]

Sci Rep, 2022
Jia C, Li S, Fan C, Rong H, Yang L, Pu Z.   +5 more
europepmc   +1 more source