Results 31 to 40 of about 11,904 (295)

Research on deformation monitoring of surrounding rock based on weak fiber grating sensing technology [PDF]

open access: yes, 2023
The prominent contradiction between high ground stress and low strength of surrounding rock in deep strata of coal mine leads to large deformation and instability disaster after roadway excavation.
Zhanbiao YANG   +3 more
core   +1 more source

Nonlinear deformation prediction of tunnel surrounding rock with computational intelligence approaches

open access: yesGeomatics, Natural Hazards & Risk, 2020
Deformation of surrounding rock is widely monitored to discover surrounding rock behaviors for purpose of event forecasting. This article aims to present a comparative study on surrounding rock nonlinear deformation prediction using computational ...
Peng He, Fei Xu, Shang-qu Sun
doaj   +1 more source

Mechanism of deep deformation of roof arch of underground powerhouse at right bank of Baihetan Hydropower Station

open access: yesYantu gongcheng xuebao, 2020
In the process of the excavation of underground powerhouse caverns at the right bank of Baihetan Hydropower Station, which is the world largest underground powerhouse in term of span, the surrounding rock at the roof arch from section 0 + 076 m to 0+133 ...
MENG Guo-tao 1, 2, HE Shi-hai 1, CHEN Jian-lin 1, WU Jia-yao 1, 2, CHEN Ping-zhi 1, 2, DUAN Xin-ping 3
doaj   +1 more source

Study on the Large Deformation Characteristics and Disaster Mechanism of a Thin-Layer Soft-Rock Tunnel

open access: yesAdvances in Civil Engineering, 2020
In view of the large deformation of thin-layer soft rock in the No. 2 inclined shaft of the Muzhailing Tunnel, we performed an experimental investigation on the mineral composition, physical characteristics, and uniaxial compressive strength of the ...
Xiulian Zhang   +5 more
doaj   +1 more source

Complex function solution for deformation and failure mechanism of inclined coal seam roadway

open access: yesScientific Reports, 2022
The stressed environment of the inclined coal seam roadway is complex and changeable, and the damage degree of surrounding rock increases, threatening the safe mining of coal mines.
Xianyu Xiong   +3 more
doaj   +1 more source

Deformation Failure and Support Test of Surrounding Rock in Deep Arched Roadway with Straight Wall

open access: yes, 2021
The deformation and failure of the uphill roadway on the 3rd horizontal track in the No. 6 Mine of Pingdingshan Coal Group was taken as the engineering background.
Chao Yuan   +4 more
core   +1 more source

Stability analysis of surrounding rock of mountain tunnels based on deformation prediction and parameter inversion

open access: yesYantu gongcheng xuebao, 2023
There is a complex nonlinear relationship between the deformation of the surrounding rock of tunnels and the mechanical parameters of rock mass, which is the most intuitive expression for change of state of the surrounding rock, and is also an important ...
WANG Shuhong , DONG Furui
doaj   +1 more source

Research on Deformation and Loose Zone Characteristics of Large Cross Section Tunnel in High Geo-Stress Soft Rock

open access: yesApplied Sciences, 2023
In constructing high-geo-stress soft rock tunnels, the major deformation disaster of the surrounding rock has always been the main problem faced during construction.
Dong Ma   +4 more
doaj   +1 more source

Research on Deformation Control Measures of Surrounding Rock in Soft Rock Tunnel

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract In order to study the control measures of soft rock tunnel surrounding rock deformation, based on the restraint effect of shotcrete anchor support on it, a support model was constructed, and numerical simulation was used to compare and analyze the restraint effects of different bolts controlling the surrounding rock deformation.
openaire   +1 more source

Study on instability failure mode and monitoring early warning standard of surrounding rock in fully weathered argillaceous sandstone section of large section tunnel [PDF]

open access: yesE3S Web of Conferences, 2019
Based on the special geological conditions of a tunnel in Qingyuan section of Huizhou-Zhanzhou Expressway, FLAC3d numerical simulation software is used to simulate the rheological properties and instability of surrounding rock in large-section fully ...
Zhao Ming   +3 more
doaj   +1 more source

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