Results 41 to 50 of about 1,604,914 (120)

Deformation Characteristics and Destabilization Mechanisms of the Surrounding Rock of Near-Vertical Coal–Rock Interbedded Roadway

open access: yes, 2023
Aiming at the problem of serious deformation and difficult support in the surrounding rock of the near-vertical coal–rock-interbedded roadway, this paper studies the stress distribution characteristics of the roadway surrounding the rock based on ...
Yanqiang Yao   +3 more
core   +1 more source

Influence Analysis of Anchor Parameters on Stability of Surrounding Rock of Roadway with Rock Burst Hazard

open access: yes, 2011
For operation roadway of anchor net support with rock urst tendency, the paper analyzed mechanism that anchor of roadway depress disaster of pressure bump by use of dynamic theory and researched influence degree of different anchor parameters on ...
Bao Zhu Yao
core   +1 more source

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

open access: yesDeep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu   +6 more
wiley   +1 more source

Research on Stability Control Technology of Mining Roadway Based on Energy Transformation

open access: yesGeofluids, 2023
The process of roadway surrounding rock deformation and instability is always accompanied by energy changes, and the energy transformation of surrounding rock directly drives its deformation and failure.
Guohua Zhang, Yanwei Duan, Tao Qin
doaj   +1 more source

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

open access: yesDeep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li   +4 more
wiley   +1 more source

Approximate solution of plastic zone in surrounding rock under three-dimensional stress field based on Drucker-Prager strength criterion

open access: yes矿业科学学报
This study proposes to address the stability of roadway surrounding rock under three-dimensional stress field based on the Drucker-Prager criterion and the theory of elastic-plastic mechanics.
LIU Hongtao   +4 more
doaj   +1 more source

Analyzing dynamic disturbance fragmentation mechanism of surrounding rock in roadway roof [PDF]

open access: yes, 2019
In this paper, a numerical simulation is conducted to analyze an engineering practice pertaining to the in panel 2347, the discussion is focused on the following aspects: the influence of fault mining activation on fragmentation of surrounding rock in ...
Hongfei Gu   +4 more
core   +1 more source

Carbon emission assessment of tunnel infrastructures: From construction to operation

open access: yesDeep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long   +4 more
wiley   +1 more source

Deformation and Failure Mechanism of Surrounding Rock in Mining-Influenced Roadway and the Control Technology

open access: yes, 2021
Aiming at the problem of surrounding rock deformation and failure of mining roadway and its control, a mechanical model of the circular roadway under the mining environment is established, and the implicit equation of the plastic zone boundary is derived.
Haitao Xu   +6 more
core   +1 more source

Stability analysis of roadway surrounding rock with weak interlayer under dynamic and static loads

open access: yesMeikuang Anquan, 2022
To study the deformation and failure law of roadway surrounding rock with weak interlayer under dynamic and static loads, taking the deep transportation roadway of Longfeng Coal Mine as the research object, the mechanical deformation characteristics of ...
LAN Hong   +6 more
doaj   +1 more source

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