科技创新与应用2024，Vol.14Issue(21)：84-88,5.DOI:10.19981/j.CN23-1581/G3.2024.21.020
盾构穿越施工对运营铁路股道的变形影响分析
李瀚源 1蔡志勇 2李兴高1
作者信息
- 1. 北京交通大学土木建筑工程学院,北京 100044
- 2. 北京市政建设集团有限责任公司,北京 100089
- 折叠
摘要
Abstract
Relying on the project of shield tunneling through the railway track area of Beijing Chaoyang Station on Beijing Metro Line 3,through numerical calculation and field measured data,the deformation characteristics of existing railway roadbed during interval shield crossing construction are analyzed.The deformation control effect of sheet pile reinforcement system and ground grouting reinforcement on railway track is discussed.The research results show that the sheet pile reinforcement system can significantly reduce the railway roadbed deformation caused by shield crossing construction,and the maximum settlement deformation of track roadbed 6# is only 1.27 mm.The control effect of ground grouting reinforcement scheme on railway roadbed deformation is weaker than that of sheet pile reinforcement system,but the maximum settlement value of railway roadbed after shield crossing still meets the settlement control standard.However,only the secondary grouting of the tunnel can not ensure the safety of the existing railway line operation.The research results can provide reference for similar projects.关键词
盾构隧道/数值模拟/沉降变形/现场实测/铁路路基Key words
shield tunnel/numerical simulation/settlement deformation/field measurement/railway subgrade分类
交通工程引用本文复制引用
李瀚源,蔡志勇,李兴高..盾构穿越施工对运营铁路股道的变形影响分析[J].科技创新与应用,2024,14(21):84-88,5.
