Results 221 to 230 of about 915,918 (286)

Investigating the relationship between erosion-induced structural damage and lining displacement parameters in shield tunnelling

Computers and geotechnics, 2021
This study investigated the relationship between erosion-induced structural damage and lining displacement parameters for shield tunnelling using a finite element approach, which properly simulated the interaction between the eroded soil and tunnel ...
Z. Ye, Huabei Liu
semanticscholar   +1 more source

Analysis of shield tunnel

International Journal for Numerical and Analytical Methods in Geomechanics, 2003
AbstractThis paper proposes a two‐dimensional finite element model for the analysis of shield tunnels by taking into account the construction process which is divided into four stages. The soil is assumed to behave as an elasto‐plastic medium whereas the shield is simulated by beam–joint discontinuous model in which curved beam elements and joint ...
Zhu, HH, Ding, WQ, Hashimoto, T, Lee, CF, Yue, ZQ, Tham, LG   +5 more
openaire   +3 more sources

Predictive maintenance of shield tunnels

Tunnelling and Underground Space Technology, 2013
Abstract Scientific maintenance methodologies are specially needed to enhance system reliability and safety, reduce maintenance manpower, spares, and repair costs, eliminate scheduled inspections, and maximize lead time for maintenance and parts procurement.
Yong Yuan, Xiaomo Jiang, Xian Liu
openaire   +1 more source

Laboratory tests on conditioning the sandy cobble soil for EPB shield tunnelling and its field application

, 2020
During the construction of the interconnection tunnel from Tianqiao Station to Yongdingmen Station of Metro Line 8 in Beijing, the Earth Pressure Balance (EPB) shield machine had to excavate in sandy cobble soil. Because the sandy cobble soil has varying
Qianwei Xu, Lianyang Zhang, Hehua Zhu, Zhengyu Gong, Jianguo Liu, Yaohong Zhu   +5 more
semanticscholar   +1 more source

Effect of dispersant on the tangential adhesion strength between clay and metal for EPB shield tunnelling

, 2020
When Earth Pressure Balance (EPB) shields pass through clayey ground, the working tool is frequently clogged, causing a low tunnelling rate and accelerating cutter disk abrasion.
Shuying Wang, Liu Pengfei, Qinxin Hu, Zhong Jiazheng   +3 more
semanticscholar   +1 more source

Experimental study of salt-resisting slurry for undersea shield tunnelling

, 2020
For undersea shield tunnelling projects, selection of a suitable slurry ingredient is a challenging issue due to the presence of massive ions. As a result it may be adverse for the formation of filter cake at the tunneling face, which would lead to a ...
W. Cui, Dongzhi Liu, Hui-fang Song, Sherong Zhang, Sun-wen He   +4 more
semanticscholar   +1 more source

Model tests on longitudinal surface settlement caused by shield tunnelling in sandy soil

Sustainable cities and society, 2019
The prediction of longitudinal surface settlement caused by shield tunnel construction is a concerning problem. However, despite the increasing concern on it, most existing prediction methods either assume that surface settlement is evenly distributed ...
Yong Fang, Zhongtian Chen, Liming Tao, Jian Cui, Q. Yan   +4 more
semanticscholar   +1 more source

Shield Tunnel Construction in Centrifuge

Journal of Geotechnical and Geoenvironmental Engineering, 1999
A large number of centrifuge model tests for simulating the shield construction process in dry sand was carried out by using a newly developed 100 mm diameter miniature shield tunnel. Different construction processes were modeled by three series of tests. A buried tube test was conducted to measure the lining stress under a centrifugal acceleration, a “
Toshi Nomoto, Shinichiro Imamura, Toshiyuki Hagiwara, Osamu Kusakabe, Nariaki Fujii   +4 more
openaire   +1 more source

Deep learning-based prediction of steady surface settlement due to shield tunnelling

Automation in Construction, 2023
Gan Wang, Qian Fang, Jian-ming Du, Jun Wang, Qiming Li   +4 more
semanticscholar   +1 more source

3D fluid-solid full coupling numerical simulation of soil deformation induced by shield tunnelling

Tunnelling and Underground Space Technology, 2019
For twin tunnels, succeeding tunnelling may cause damage to preceding tunnel in close proximity during excavation. Therefore it is important to predict the soil deformation around the tunnels to ensure safety during shield construction.
Z. Li, Zujiang Luo, Chenghua Xu, Jinzhong Tan   +3 more
semanticscholar   +1 more source