Construction Settlement Monitoring and Control Measures for Mining Method Tunnel Section by Cutting Piles Closely Under-passing Existing Metro Station

Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 6

Abstract

Objective When the sectional tunnel closely under-passes the existing metro station by cutting piles, it has a significant impact on the deformation of the upper station. In order to ensure the safety of construction, it is necessary to take effective measures to control the settlement of metro station. Method Based on the project of a sectional tunnel under-passing the existing metro station, a three-dimensional numerical model is established to analyze the station settlement when being under-passed by cutting piles without settlement control measures. The settlement control effects with measures such as addition of temporary inverted arches, staggered excavation, and grouting reinforcement are studied. A multiple measure combination control scheme is proposed, and its feasibility is verified by the measured engineering data. Result & Conclusion The research results indicate that when the tunnel underpasses the station directly by cutting piles without taking settlement control measures, the maximum settlement of the station will exceed the specified limit. The grouting reinforcement produces the best effect on settlement control with the settlement being reduced by 57.3%. Addition of temporary inverted arches follows next by 40.4%, and staggered excavation has the least effect by 20.8%. The settlement limit can be met by using the multiple measure combination control scheme, which is verified to be feasible by the monitoring data, and can provide reference for similar projects.

Authors and Affiliations

Tao XU

Keywords

Related Articles

QoS Strategies for Wired Communication Networks in Urban Rail Transit Signaling System

Objective With the increase in data traffic and diversification of data types in urban rail transit signaling systems, higher demands are placed on reliability, real-time performance, and security. It is necessary to tho...

Thoughts on Coordination and Minimization of Urban Rail Transit Systems

[Objective] Current urban rail transit system faces issues such as information silos and low coordination efficiency, which hinder the ability to meet the demands for digital transformation, high safety, and high autom...

Study on the Balise Antenna Interference Problem on Nanjing Metro Line 7

Objective Due to the complex installation environment of the train in actual application, the balise antenna is subject to varying degrees of interference, sometimes even affecting its normal operation. Therefore, it is...

Performance Analysis of Slurry After Sewage Infiltration in Pipe Jacking Construction of Subway Station Entrances and Exits Project

Objective During pipe jacking construction, aging sewage pipes within the construction area are prone to rupture, leading to sewage infiltration into the thixotropic slurry along the soil body, thus impacting the perform...

Regional Rail Transit Electronic Map Data Management Scheme for Intercity Railway Through-operation

[Objective] In the new round of metro politan rail transit integration construction, enhancing train through-operation is crucial for reducing passenger interchange time. Cross-system intercity railway through-operation...

Download PDF file
  • EP ID EP737756
  • DOI 10.16037/j.1007-869x.2024.06.027
  • Views 62
  • Downloads 0

How To Cite

Tao XU (2024). Construction Settlement Monitoring and Control Measures for Mining Method Tunnel Section by Cutting Piles Closely Under-passing Existing Metro Station. Urban Mass Transit, 27(6), -. https://europub.co.uk/articles/-A-737756