LIQUID-SOLID COUPLING RESPONSE OF SURROUNDING ROCK MASS OF LARGE-DIAMETER RIVER-CROSSING SHIELD TUNNEL DOI Creative Commons
Shanglong Zhang, Xuansheng Cheng, Xiaoshuang Li

et al.

Stavební obzor, Journal Year: 2023, Volume and Issue: 32(4), P. 443 - 456

Published: Dec. 31, 2023

The purpose is to investigate the response of seepage field, displacement field and stress in surrounding rock mass during dynamic tunneling soft soil area. Relied on a large-diameter river-crossing shield tunnel project, considering driving force, tail grouting pressure, friction resistance between shell soil, three-dimensional fine model liquid-solid coupling effect was established by employing finite difference method. characteristics pore water were obtained. results show that grouting, pressure range 0.5 times hole diameter around decreases increases respectively due mass. When moves away, near vault decreases, arch bottom increases. impact vertical settlement upper about diameter. can effectively reduce top slow down uplift soil. During distribution above working position excavation surface funnel-shaped, excavated decreases.

Language: Английский

Analysis of Surface Settlement Induced by Shield Tunnelling: Grey Relational Analysis and Numerical Simulation Study on Critical Construction Parameters DOI Open Access

Minhe Luo,

Ding Wang, Xuchun Wang

et al.

Sustainability, Journal Year: 2023, Volume and Issue: 15(19), P. 14315 - 14315

Published: Sept. 28, 2023

Excessive surface settlement poses significant challenges to shield tunnelling construction, resulting in damage adjacent buildings, infrastructure, and underground pipelines. This study focused on investigating the induced by during construction of Qingdao Metro Line 6 between Haigang Road Station Chaoyang Station. Firstly, data from left line tunnel were evaluated grey relational analysis. The coefficients calculated assess correlation degrees each influential parameter. Subsequently, four critical parameters with highest chosen investigate their effects through numerical simulations under different scenarios. results show that thrust, grouting pressure, earth strata elastic modulus. It should be noted modulus significantly affects settlement, while pressure influences trough width weak strata. Moreover, improper thrust magnitude can lead an increase settlement. Based these findings, recommendations are proposed for right-line practical countermeasures provided.

Language: Английский

Citations

7
Assessing the influence of geotechnical uncertainty on existing tunnel settlement caused by new tunneling underneath DOI
Lihang Hu, Kiyonobu Kasama, Gang Wang

et al.

Tunnelling and Underground Space Technology, Journal Year: 2024, Volume and Issue: 155, P. 106189 - 106189

Published: Nov. 12, 2024

Language: Английский

Citations

0
Retracted: Three‐Dimensional Numerical Simulation of Soil Deformation during Shield Tunnel Construction DOI Creative Commons

Mathematical Problems in Engineering

Mathematical Problems in Engineering, Journal Year: 2023, Volume and Issue: 2023(1)

Published: Jan. 1, 2023

Language: Английский

Citations

0
LIQUID-SOLID COUPLING RESPONSE OF SURROUNDING ROCK MASS OF LARGE-DIAMETER RIVER-CROSSING SHIELD TUNNEL DOI Creative Commons
Shanglong Zhang, Xuansheng Cheng, Xiaoshuang Li

et al.

Stavební obzor, Journal Year: 2023, Volume and Issue: 32(4), P. 443 - 456

Published: Dec. 31, 2023

The purpose is to investigate the response of seepage field, displacement field and stress in surrounding rock mass during dynamic tunneling soft soil area. Relied on a large-diameter river-crossing shield tunnel project, considering driving force, tail grouting pressure, friction resistance between shell soil, three-dimensional fine model liquid-solid coupling effect was established by employing finite difference method. characteristics pore water were obtained. results show that grouting, pressure range 0.5 times hole diameter around decreases increases respectively due mass. When moves away, near vault decreases, arch bottom increases. impact vertical settlement upper about diameter. can effectively reduce top slow down uplift soil. During distribution above working position excavation surface funnel-shaped, excavated decreases.

Language: Английский

Citations

0