Results 281 to 290 of about 465,954 (329)

Centrifuge modeling of effectiveness of protective measures on existing tunnel subjected to nearby excavation

, 2021
Various countermeasures are adopted to mitigate nearby excavation-induced deformations and internal forces of an existing tunnel. The effectiveness and function mechanism behind the measures are not yet fully understood.
F. Meng, Ren-peng Chen, Yong Xu, Huai-na Wu, Zhongchao Li   +4 more
semanticscholar   +1 more source

Study on Excavation Sequence of Pilot Tunnels for a Rectangular Tunnel Using Numerical Simulation and Field Monitoring Method

Rock Mechanics and Rock Engineering, 2022
Shuobiao Li, Yonggang Zhang, Mingyang Cao, Ze-nian Wang   +3 more
semanticscholar   +1 more source

Excavation Stress Path Induced Fracturing Mechanism of Hard Rock in Deep Tunnel

Rock Mechanics and Rock Engineering, 2022
Lian-Sheng Gu, Xia-ting Feng, R. Kong, Chengxiang Yang, Qiang Han, Yuelin Xia   +5 more
semanticscholar   +1 more source

Simplified analysis method for predicting the influence of deep excavation on existing tunnels

, 2020
A deep excavation has a significant influence on existing tunnels. However, there is currently a lack of simple and practical assessment methods for predicting this influence.
Dongmei Zhang, Xiao-Chuang Xie, Zili Li, Jie Zhang   +3 more
semanticscholar   +1 more source

Analytical solution for the response of an existing tunnel to a new tunnel excavation underneath

Computers and geotechnics, 2019
This paper proposed an analytical solution to investigate the response of an existing tunnel induced by new tunnel excavation underneath. A Timoshenko beam lying on a Kerr foundation was adopted to model the existing tunnel subjected to ground ...
Dongmei Zhang, Zhonghui Huang, Zili Li, Xiang Zong, Dongming Zhang   +4 more
semanticscholar   +1 more source

Improved analytical method for pile response due to foundation pit excavation

, 2020
Owing to the rapid growth of urban population and fast developments of urbanization, new pit excavations are inevitably conducted in close proximity to existing structures, which will cause additional displacement and internal force to piles in turn ...
Jianwen Liu, Chenghua Shi, Chengyong Cao, Ming-feng Lei, Zu-xian Wang   +4 more
semanticscholar   +1 more source

A simplified method for estimating the longitudinal and circumferential behaviors of the shield-driven tunnel adjacent to a braced excavation

, 2020
The construction of soil excavations will inevitably have an adverse effect on the adjacent tunnels. However, the structural responses of existing shield-driven tunnels adjacent to a braced excavation and their serviceability are still not fully ...
Hongzhan Cheng, Ren-peng Chen, Huai-na Wu, F. Meng   +3 more
semanticscholar   +1 more source

Dewatering–Induced Building Settlement around a Deep Excavation in Soft Deposit in Tianjin, China

Journal of Geotechnical and Geoenvironmental Engineering, 2019
This case study presents an investigation on building settlement induced by dewatering for a deep excavation constructed in a deposit in Tianjin, China.
Yong-xia Wu, H. Lyu, Jie Han, S. Shen
semanticscholar   +1 more source

Investigating Toppling Failure Mechanism of Anti-dip Layered Slope due to Excavation by Physical Modelling

Rock Mechanics and Rock Engineering, 2020
Chun Zhu, M. He, M. Karakus, Xuebin Cui, Z. Tao   +4 more
semanticscholar   +1 more source

Investigation of geometric effects on three-dimensional tunnel deformation mechanisms due to basement excavation

Computers and geotechnics, 2019
Numerical parametric study is conducted to investigate geometric effects of basement excavation on existing tunnels. Centrifuge test results are adopted to validate numerical models. If basements with a same excavation area are constructed above a tunnel,
Jiangwei Shi, Z. Fu, Wanli Guo
semanticscholar   +1 more source