Results 11 to 20 of about 93,033 (262)

Application and Principle of Bolt-Mesh-Cable Control Technology in Extremely Soft Coal Seam Roadway

open access: yesGeofluids, 2023
The extremely soft coal seam roadway has the problems of low surrounding rock strength and difficult support. Based on the engineering background of the mining roadway in the extremely soft coal seam of the Quandian coal mine, this paper adopts the ...
Fengfeng Wu   +9 more
doaj   +1 more source

Numerical Analysis and Control Study on Surrounding Rock Deformation of Deep Soft Rock Roadway [PDF]

open access: yesE3S Web of Conferences, 2021
Aiming at the problem of large-scale deformation of the track and alleys in the East Second Mining Area, the numerical analysis method is used to analyze the stress and deformation law of the roadway.
Yi Enbing
doaj   +1 more source

Construction of knowledge graph of coal mine roadway support field

open access: yesGong-kuang zidonghua, 2019
In view of problems of limited knowledge content, difficult knowledge fusion and sharing, and inability to mining related knowledge from unstructured data existed in coal mine roadway support expert system, a knowledge graph of coal mine roadway support ...
WU Xuefeng   +4 more
doaj   +1 more source

Research and Application of Support Design for Soft Rock Roadway in Strongly Weathering Zone

open access: yesMeikuang Anquan, 2020
To solve the problems of large deformation and supporting difficulties in soft rock roadway in strongly weathering zone, and taking the soft rock roadway along the wind oxidation zone edge of No.
ZHENG Wenxiang, DU Dengji, BAO Xiankai
doaj   +1 more source

Analysis on deformation and failure of Jijianao ventilation shaft roadway and supporting countermeasures

open access: yesMeikuang Anquan, 2021
In order to solve the problem of large deformation of Jijianao ventilation shaft roadway in Xinyuan Mine, the nature of the surrounding rock of the ventilation shaft roadway was studied. The deformation and failure mode of the roadway was systematically
YANG Yong
doaj   +1 more source

Stabilization of Rock Roadway under Obliquely Straddle Working Face

open access: yesEnergies, 2021
A floor rock roadway under an oblique straddle working face is a typical dynamic pressure roadway. Under the complex disturbance of excavation engineering works, the roadway often undergoes stress concentration and severe deformation and damage. To solve
Peng Wang   +4 more
doaj   +1 more source

Numerical Simulation of Coupling Support for High-Stress Fractured Soft Rock Roadway in Deep Mine

open access: yesAdvances in Civil Engineering, 2022
Aiming at the difficulties during the support of high-stress fractured soft rock roadway in deep mine, a comprehensive surrounding rock management method of bolt-net-cable-grout coupling support is proposed and the mechanism of interaction between ...
Wenhua Yuan   +4 more
doaj   +1 more source

Distant interaction of rock mass clusters around underground opening [PDF]

open access: yes, 2017
Purpose. To experimentally prove the fact of distant interaction between rock clusters during the irreversible displacements of rock mass. Disintegration of the rock mass does not necessarily imply loss in underground working stability.
Diedich, I   +3 more
core   +3 more sources

Deformation Characteristics and Control Technology of Roadway in Water-Rich Soft Rock

open access: yesGeofluids, 2022
Jurassic soft rocks are the main coal-bearing strata in western mining areas, which are rich in water and high in expansive minerals. The roof and floor of the coal seam are easily muddied and disintegrated when affected by water, and heave floor of ...
Weiguo Lin   +3 more
doaj   +1 more source

Design and Preliminary Testing of Demand-Responsive Transverse Rumble Strips [PDF]

open access: yes, 2019
Transverse rumble strips are common practice to alert drivers by engaging their auditory and tactile senses in addition to visual senses by traffic signals.
Hossen, Md Shakhawat   +5 more
core   +2 more sources

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