Keywords
Open-cut tunnel
Pipeline protection
Submitted : 2025-12-16
Accepted : 2025-12-31
Published : 2026-01-15
Abstract
This paper systematically studies the in-situ protection technology system under complex conditions where municipal road and bridge open-cut tunnels are adjacent to or pass through existing pipelines, under the condition that the pipelines do not need to be relocated. The key mechanism of the MJS technology in the reinforcement of the pit side wall and water sealing is analyzed, and the technical principles and implementation methods for controlling ground deformation and ensuring pipeline safety are clarified. The paper elaborates on the formulation of protection standards based on pipeline types and environmental conditions, the collaborative design of support systems, the collaborative construction mechanism among multiple units, and the construction and data application of high-precision real-time monitoring platforms. Through typical engineering cases, the effectiveness and limitations of key technologies such as MJS in practical applications are verified, providing practical basis and optimization suggestions for the safe and controllable protection of pipelines in similar open-cut tunnel projects.
References
Wang Z, 2023, Research on Construction Control Technology of Urban Open-Cut Tunnel Adjacent to Existing Ancient Buildings, thesis, Chongqing Jiaotong University.
Yu S, 2020, Study on Deformation Control of Existing Subway Tunnels Due to Proximate Open-Cut Tunnel Construction, thesis, Chongqing Jiaotong University.
Liu S, 2017, Study on the Stability of Open-Cut Tunnel Excavation Construction, thesis, Chongqing Jiaotong University.
Meng J, 2021, Research on Structural Stress Characteristics and Scheme Optimization for Backfilling Construction of Open-Cut Tunnel Groups, thesis, Southwest Jiaotong University.
Tian T, 2012, Research on Reasonable Reinforcement Technology for Coastal Shallow-Buried Water-Rich Open-Cut Tunnels, thesis, Graduate University of Chinese Academy of Sciences.
Yan F, Zhang X, Geng J, 2021, Protection of Water Supply and Gas Pipelines During Large-Section Open-Cut Tunnel Construction. Yunnan Water Power, 37(10): 114–119.
Cao J, 2015, Research on Pipeline Protection Technology in Municipal Construction. Urban Construction Theory Research: Electronic Edition, 2015(2): 2857.
Xiong J, Xu X, Jin Z, 2014, Research on Pipeline Protection Technology in Municipal Construction. China High-Tech Enterprises, 2014(16): 30–31.
Xing H, 2021, Research and Practice on Safety Technology for Protecting Underground Pipelines During Shallow Tunnel Construction by Mining Method. Encyclopedia Forum Electronic Magazine, 2021(3): 1333.
Liu R, 2017, Research on Waterproofing Construction Technology for Metro Station Open-Cut Tunnels. Architectural Engineering Technology and Design, 2017(2): 48.