Results 51 to 60 of about 163,434 (247)

Numerical simulation of roadway deformation and failure under different degrees of dynamic disturbance

Scientific Reports, 2022
Deformation and failure of the roadway surrounding rock under dynamic disturbance were explored, which is essential for the control of the surrounding rock.
Ce Jia, Sheng Li, Chaojun Fan, Hai Rong, Lei Yang, Ziang Pu   +5 more
doaj   +1 more source

Ar-40/Ar-39 dating of mesothermal, orogenic mineralization in a low-angle reverse shear zone in the Lower Palaeozoic of the Anglo-Brabant fold belt, Belgium [PDF]

, 2002
A
Boven, A., Dewaele, Stijn, Muchez, Ph.
core   +2 more sources

Implementation of probabilistic approach to rock mass strength estimation while excavating through fault zones [PDF]

, 2019
Purpose. The paper addresses the rock mass state estimation while excavating a cross-heading through the area of regional fault “Bohdanivskyi” based on probabilistic approach to assessing the rock strength. Methods.
Babets, D, Cabana, E.C., Kravchenko, K, Sdvyzhkova, O, Shashenko, O   +4 more
core   +1 more source

Deformation mechanism and optimum supporting structures in fault-bearing biased tunnels

Zhongguo dizhi zaihai yu fangzhi xuebao
To explore the deformation mechanisms of tunnel surrounding rock under complex geological conditions and develop appropriate technologies for controlling surrounding rock deformation, this study analyzes the deformation of surrounding rock at the mouth ...
Xiaolong LIU, Chuang SUN, Hui WANG, Weiming ZHANG, Xingxuan ZHENG, Yiting WANG   +5 more
doaj   +1 more source

Study on Stress Disturbed Mechanism and Supporting Method of Weakly Cemented Roadway near Chambers

Complexity, 2023
After excavation of the weakly cemented roadway adjacent to the chambers, deformation characteristics such as roof subsidence, roadway extrusion, and floor heave appear, showing the characteristics of large deformation of surrounding rock, long ...
Wei Zhang
doaj   +1 more source

Analysis of Control Technology for Large Deformation of a Geological Bedding Bias Tunnel with Weakly Cemented Surrounding Rock

Sustainability, 2023
The Baishitou Tunnel of the Dali–Lincang railway project is a weakly cemented surrounding rock tunnel with geological bedding bias. The deformation of the surrounding rock on the side with the greatest stress is nearly 1 m, which seriously affects ...
Jinmao Ju, Honglin Liu, Hongqian Hu, Yinjian Hang, Chengfang Shan, Hongzhi Wang   +5 more
semanticscholar   +1 more source

Dynamic deformation and fracture characteristics of a deep roadway surrounding rock based on the machine vision monitoring method

Energy Science & Engineering, 2021
The deformation and fracture of surrounding rock in deep underground engineering have the characteristics of time mutation and space continuity. In order to monitor and provide early warning of the dynamic deformation and fracture characteristics of deep
Rui Zhou, Jiankun Xu, Chao Wang, Xuelong Li   +3 more
doaj   +1 more source

Consequences of large impacts on Enceladus' core shape [PDF]

, 2015
International audienceThe intense activity on Enceladus suggests a differentiated interior consisting of a rocky core, an internal ocean and an icy mantle.
Choblet, G, Collins, GS, Monteux, J, Tobie, G   +3 more
core   +2 more sources

Space-Time Evolution Characteristics of Deformation and Failure of Surrounding Rock in Deep Soft Rock Roadway

Sustainability, 2022
In view of the problems of large deformation of surrounding rock, high in-situ stress, and serious soft fracture of rock stratum in deep soft rock roadway, the instability deformation failure mode of deep soft rock roadway is analyzed theoretically.
Xinfeng Wang, Yiying Zhang, Qiao Zhang, Youyu Wei, Wengang Liu, Tian Jiang   +5 more
semanticscholar   +1 more source

Investigation into the Time-Dependent Characteristics of Stress and Deformation of Weak Surrounding Rock and Lining Structure in Operational Tunnels: Model Test

Applied Sciences
During the long-term operation of tunnels, surrounding rock undergoes creep effects under environmental loads, resulting in changes in the aging evolution model of stress and deformation in surrounding rock and lining, which affects the long-term ...
Pai Wang, Xujin Ma, Lei Yang, Xiangchao Sheng, Xiaolong Wang, Chunjin Lin   +5 more
doaj   +1 more source