Results 31 to 40 of about 19,664 (248)
Method for calculating pressure of surrounding rock in loess tunnels
Yantu gongcheng xuebaoTo propose a calculation method for surrounding rock pressure applicable to loess tunnels, analyzed the formation mechanism of surrounding rock pressure in loess tunnels, based on a large amount of field test data of surrounding rock pressure, extracted ...
LUO Yanbin, CHEN Hao, CHEN Jianxun, , WANG Chuanwu
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Study on Pressure Relief Effect of Rock Mass with Different Borehole Parameters
Advances in Civil Engineering, 2021 Rock burst is one of the disaster accidents that can easily happen in rock cavern engineering. At present, one of the most commonly used methods to control rock burst is borehole pressure relief technology. In this paper, the influence of drilling layout
Chao Peng, Wanrong Liu
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Applied SciencesBased on limit-equilibrium theory, a calculation method for the surrounding rock pressure of shallow-buried variable-slope arch tunnels is proposed. A calculation model for surrounding rock pressure of variable-slope surfaces is established according to ...
Jie Peng +3 more
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Advances in Civil Engineering, 2018 The linear failure criterion is generally adopted in the stability problem of geotechnical engineering, whereas the experiments have indicated that there is a nonlinear relationship between the maximum and minimum principal stresses in weak surrounding ...
Cheng-yang Wang, He-lin Fu, Jun-zhe Liu
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Journal of Rock Mechanics and Geotechnical EngineeringThis study investigates the mechanical response of an underground cavern subjected to cyclic high gas pressure, aiming to establish a theoretical foundation for the design of lined rock caverns (LRCs) for energy storage with high internal pressure, e.g ...
Chen Xu +5 more
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Advances in Civil Engineering, 2021 Terzaghi developed a generalized expression of the vertical surrounding rock pressures of shallow tunnels by considering the limit equilibrium of soil masses.
Zhengde Wei, Yanpeng Zhu
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Molecular Oncology, EarlyView.Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary +1 more
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Shock and Vibration, 2021 Rock burst is a typical dynamic disaster in deep underground coal mining. Based on the support problems of the deep roadways in fully mechanized caving face 401111 of Hujiahe Coal Mine suffering from rock burst in Shaanxi Province of China, the failure ...
Wenjing Liu +6 more
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Analysis of Surrounding Rock Pressure of Deep Buried Tunnel considering the Influence of Seepage
Geofluids, 2022 This paper takes the surrounding rock of deep tunnel as the research object and considers the action mechanism under the influence of seepage. Based on the Mohr-Coulomb criterion, the stress mechanism of surrounding rock of deep buried tunnel is analyzed by a convergence constraint method.
Qingchen Yao +5 more
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Stability Analysis of Surrounding Rock in Circular Tunnels Based on Critical Support Pressure [PDF]
Advances in Civil Engineering, 2020 Accurate calculation for the critical support pressure of tunnels plays an important role in tunnel stability evaluation and support design. In this study, a mechanical model for circular tunnels is developed. Considering the intermediate principal stress and strain‐softening characteristic of rock mass, the critical support pressure when the plastic ...
Hao Fan, Lianguo Wang, Kai Wang
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