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An innovative destressing technology and key parameters determination in both sides of a deep roadway [PDF]

open access: yesScientific Reports, 2023
The general or single supporting theory and technology of the shallow surrounding rock of the roadway are not suitable for solving the problem of continuous large deformation of the both sides under the continuous migration of coal mass in the deep ...
Zaisheng Jiang   +2 more
doaj   +2 more sources

Research on large deformation mechanism of deep roadway with dynamic pressure

open access: yesEnergy Science & Engineering, 2020
In this paper, the large deformation mechanism of deep dynamic pressure roadway is studied from the perspective of the formation and development of plastic zone, and creep and damage of rock mass.
Lei Fan   +3 more
doaj   +2 more sources

Study on deformation and instability characteristics and control technology of deep soft rock roadway with strong mining

open access: yesSN Applied Sciences, 2023
With the development of deep mining of coal resources, the problem of deep roadway management is becoming increasingly prominent. This study aims to analyze the deformation and failure mechanism of deep-buried soft rock roadway under the influence of ...
Jian Li   +6 more
doaj   +2 more sources

Study on deformation characteristics and support technology of roadway in deep complex stress field [PDF]

open access: yesScientific Reports
The deformation of deep roadway is more severe under the influence of high stress, especially in the complex stress field, which is difficult to support and seriously affects the safety.
Sheng-jun Li   +6 more
doaj   +2 more sources

Physical model study on the mechanism of floor heave for the deep-buried roadway excavated in soft rock of gently inclined thin strata [PDF]

open access: yesScientific Reports
Strata structure is an important factor affecting floor heave of deep soft rock roadway, however, the mechanism of floor heave induced by the rock structure has not been fully understood, so it is still necessary to study the floor heave of deep-buried ...
Feng Chen   +5 more
doaj   +2 more sources

Development path and key technology analysis of shaft and tunnel construction in deep stratum with high temperature

open access: yes工程科学学报, 2022
The joint exploitation of deep mineral and geothermal resources strategy provides an effective way to realize the economic exploitation of “resources-thermal” and achieve a win-win situation.
Zhi-qiang LIU   +3 more
doaj   +1 more source

Research on Surrounding Rock Control Technology of Dongbaowei Deep Mining Roadway

open access: yesAdvances in Civil Engineering, 2021
In order to explore the stability control of surrounding rock in the process of deep mining, comparative analysis of stress, deformation, and fracture characteristics of surrounding rock of deep and shallow mining roadway in dongbaotou coal mine ...
Chengjia Wu, Tao Qin, Lei Wang, Zhi Liu
doaj   +1 more source

Cooperative Control Mechanism of Efficient Driving and Support in Deep-Buried Thick Top-Coal Roadway: A Case Study

open access: yesEnergies, 2022
For deep-buried thick top-coal roadways under high stress, there exists great difficulty in controlling the stability of the surrounding rock as well as in the necessity for low driving speeds.
Chengjun Hu   +4 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

Stabilization Mechanism and Safety Control Strategy of the Deep Roadway with Complex Stress

open access: yesAdvances in Civil Engineering, 2020
With the increase of mining intensity of coal resources, some coal mines in China have gradually entered the deep mining stage. The complexity of the stress environment of the deep rock stratum leads to the difficulty of coal mining.
Yang Yu   +5 more
doaj   +1 more source

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