Work

Evaluation of construction impacts and optimization of control measures for large-section metro tunnels overpassing existing tunnels

Year: 2025

Type: article

Abstract: The development of urban rail transit has led to an increase in the number of large section subway tunnels crossing existing tunnels. This study combines the actual engineering of the Yanggongqiao Station Longzhuayan Station section tunnel of Chengdu Metro Line 17 Phase II project crossing the existing Line 7 shield tunnel, and uses on-site investigation, monitoring, and numerical simulation methods to evaluate the construction impact. Based on this, measures such as bench pile reinforcement, pre grouting, and parameter optimization are proposed. In practical applications, the comparison between monitoring and simulation results shows that these measures effectively control the deformation of existing tunnels, providing important references for similar projects.

Source: Thermal Science

DOI: 10.2298/tsci2502417c

Authors: Yi-Ming Chen, Shuang You, Wei-Chen Liao, Jun-Da Wang, Hai-Chun Hao, Zhou Yu

Institutions: University of Science and Technology Beijing, China Railway Construction Corporation (China), Shenzhen University, Institute of Disaster Prevention

Language: English

Topic: Geotechnical Engineering and Analysis

Subfield: Safety, Risk, Reliability and Quality

Field: Engineering

Domain: Physical Sciences

SDGs: Industry, innovation and infrastructure, Sustainable cities and communities

Open Access status: gold

Estimated APC paid: $161