Results 21 to 30 of about 50,060 (261)
Pressure of surrounding rock of deep-buried loess shield tunnel
Yantu gongcheng xuebao, 2021 With the development of shield tunnel engineering, more and more deep-buried loess shield projects have gradually appeared. The calculation of pressure of the surrounding rock is of great significance to the design of linings and safety evaluation during
HAN Xing-bo 1, 2, YE Fei 1, 2, FENG Hao-lan 1, HAN Xin 1, TIAN Chong-ming 1, LEI Ping 1
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Study on the Mechanical Characteristics of Surrounding Rock in Excavation [PDF]
Mathematical Problems in Engineering, 2021 Mine disasters, as associated problems in the development of coal resources, always threaten the life safety of miners and the production safety of enterprises. In coal roadway excavation, the coal in front of the excavation face is in a state of concentrated stress and the deformation is serious.
Xiaoqian Zhang, Chengwu Li, Chengmin Wei
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Dynamic Monitoring and Stability Analysis of Rock-bolted Crane Girder In large Cavern With Layered Surrounding Rock [PDF]
E3S Web of Conferences, 2020 The large and medium-sized hydropower projects underground cavern group are basically in relatively integrate surrounding rock, so there are few engineering examples in layered surrounding rock with type III surrounding rocks as the main rock, and lack ...
Liu Jing +3 more
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Shock and Vibration, 2022 Combined with specific engineering examples, the spatial disturbance influence characteristics and laws of the surrounding rock stress in the staggered roadways are analyzed by numerical simulation.
Qingwei Bu +3 more
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Yantu gongcheng xuebao, 2022 A numerical simulation method for hydraulic fracture pressure of perforated surrounding rock under hydraulic coupling is proposed using the FVM based on the coupling theory of fluid flow of porous media and stress of surrounding rock.
ZHANG Yu 1, 2, WANG Peng-sheng 1, LI Da-yong 1, ZHANG Yu-kun 2, WEI Kai 3
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Classification method of surrounding rock of plateau tunnel based on BP neural network
Frontiers in Earth Science, 2023 Due to the unique high-altitude geological conditions of the railway in the cold region, the problem of high ground stress in the construction process is very prominent.
Li Shuguang +7 more
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Damage evolution and failure warning in early-age flexible-formwork concrete for underground support
Geohazard MechanicsThe evolution law of mechanical properties and damage characteristics of early-age flexible formwork filling concrete have a decisive influence on the stability control of surrounding rock of large deformation roadway.
Zijun Han +7 more
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Rockburst hazard assessment and prevention and control strategies in the Ruihai gold mine
Frontiers in Earth ScienceRuihai gold mine is a super large underwater gold mine with an initial mining depth of more than 1,400 m. Deep mining may face rockburst disaster. In order to scientifically control the potential rockburst risk, ensure the safety of underground personnel
Pengxiang Li +8 more
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Study on Stability of Round Tunnel Surrounding Rock [PDF]
MATEC Web of Conferences, 2018 Tunnel excavation will lead to the immediate surrounding rock unloading caused by the surrounding rock stress release, the stability of the surrounding rock have a certain impact. In this paper, finite element software ANSYS and finite difference software FLAC3D are used to simulate the excavation and lining process of circular tunnel. The influence of
Yan NIU, Yafei Ji, Zhao Wang
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Detection Method of Borehole Surrounding Rock Structure Based on Directional Acoustic Scanning
工程科学与技术, 2020 In the construction of infrastructures such as the large-scale water conservancy, hydropower, energy and transportation, it is important to find out the bad geological characteristics in rock mass structure to ensure the smooth construction of the ...
Jinchao WANG, Chuanying WANG, Sheng HU
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