Results 1 to 10 of about 19,664 (248)

Theoretical analysis of additional surrounding rock pressure in shallow buried bias tunnel [PDF]

Scientific Reports
The existing calculation method for the surrounding rock pressure of shallow buried bias tunnel fails to account for the impact of the progressive failure characteristics of the surrounding rock and slope creep, thereby neglecting the additional pressure
Tian Xiaoxu, Zhanping Song, Tong Wang, Jiangsheng Xie, Yun Cheng, Zhi Liu   +5 more
doaj   +5 more sources

Calculation method and evaluation of surrounding rock pressure of vertical shaft [PDF]

Scientific Reports
AbstractThe surrounding rock pressure of vertical shafts is one of the basic parameters of shaft lining design. Investigating its calculation methods and applicable scopes has great engineering significance. The paper classifies and compares the calculation methods, discusses the application scopes of various calculation methods, and proposes that the ...
Xutao Zhang, Wanrong Liu, Zhang Xutao
exaly   +5 more sources

Study on the Surrounding Rock Pressure Characteristics of Loess Tunnel Based on Statistical Analysis in China

Applied Sciences, 2022
A method of load calculation in a tunnel was adopted in consideration of the state of covering depth. Due to the macropore characteristics of loess soil, the existing demarcation regulations of deep and shallow tunnels are inappropriate for large-section
Zhao Hu, Jianwei Zhang, Yongtai Yang, Zhichao Wang, Yongli Xie, Junling Qiu, Siyue He, Xiuling Wang   +7 more
doaj   +3 more sources

Support mechanical response analysis and surrounding rock pressure calculation method for a shallow buried super large section tunnel in weak surrounding rock. [PDF]

Sci Rep
Abstract At present, China's demand for high-speed railway construction is constantly increasing, and the construction of Multi line high-speed railway tunnels has been put on the agenda. The design and construction issues of super-large-sections tunnels urgently need to be addressed. The Xiabei mountain No. 1 and No. 2 tunnels in the
Lai H, Wang X, Tan Z, Zhao J, Liu X.
europepmc   +4 more sources

Research on Surrounding Rock Stability Affected by Surrounding Rock Pressure and Rock Fracture under Blasting Vibration Load Action

Advances in Civil Engineering, 2022
The influence mechanisms of factors, such as high confining pressure and in situ stress caused by deep mining on the stability of surrounding rock of roadways, are complex. Particularly, the motion and energy release of the rock mass medium can be caused
Qingjie Qi, Shuai Huang, Yingjie Liu
doaj   +2 more sources

FDEM numerical study of the influence law of geostress on state and pressure of tunnel surrounding rock

Frontiers in Ecology and Evolution, 2023
Surrounding rock pressure is a crucial parameter in tunnel engineering design, and its calculation is a classic challenge. The surrounding rock pressure is influenced by geostress, but existing calculation methods often do not take into account the ...
Bo Hu, Bo Hu, Mingqing Xiao, Mingqing Xiao, Xiaodong Fu, Xiaodong Fu, Jian Yang, Jian Yang, Chen Xu, Chen Xu, Jiaming Wu, Jiaming Wu, Yongqiang Zhou, Yongqiang Zhou   +13 more
doaj   +3 more sources

Failure Mode of Deep-Buried Rectangular Chamber and Upper Bound Solution of Surrounding Rock Pressure

Mathematics
In order to obtain more reasonable failure modes and more precise surrounding rock pressures of deep-buried underground rectangular chambers, the failure mode of a “wedge-shaped collapse body + arc rotator + logarithmic spiral rotator” deep-buried ...
Daobing Zhang, Linhai Zeng, Zhilin Lv, Xiaochuan Yu, Chang Liu, Anming Jiang, Xianyong Jiang, Qi Li, Yongxiang Yang   +8 more
doaj   +3 more sources

Calculation of Surrounding Rock Pressure Design Value and the Stability of Support Structure for High-Stress Soft Rock Tunnel

Buildings
With the comprehensive implementation of the “Belt and Road” initiative and the Western Development Strategy, the scale of tunnel construction has been continuously expanding, with many tunnels being built in high ground stress and fractured soft rock ...
Mingyi Wang, Yongqiang Zhou, Yongliang Cheng, Xiaodong Fu, Chen Xu, Jiaming Wu   +5 more
doaj   +3 more sources

Data-driven prediction framework of surrounding rock pressure in a fully mechanized coal face with temporal-spatial correlation [PDF]

Scientific Reports
Surrounding rock pressure prediction for fully mechanized coal face (FMCF) roof management and control is of great significance. The key challenge is to effectively combine various factors to evolve the surrounding rock pressure trend with high temporal ...
Yang Song, Yinhui Feng, Weidong Wang, Yuhan Fan, Yuxin Wu, Ziqi Lv   +5 more
doaj   +2 more sources

Study on a Surrounding Rock Pressure Calculation Method for Super-Large Section Highway Tunnels

Symmetry, 2019
This paper presents new correlations for estimating the surrounding rock pressure of symmetrically shaped tunnels based on a symmetrical numerical model. Surrounding rock pressure is defined as the load acting on the support structure due to the deformation of the surrounding rock after tunnel excavation.
Hj G
exaly   +2 more sources