Impact Analysis and Protection Scheme of Subway Shield Tunneling under Existing Railways

2018 International Conference of Green Buildings and Environmental Management

土木建筑工程;生态环境科学

He, Zheng Hua^1 ; Wang, Guo Quan^2 ; Chen, Jian Wei^2 ; Zhang, Xu Zhi^3 ; Yong, Huang^4

Central and Southern China Municipal Design and Research Institude Co., Ltd., Hubei Wuhan

430010, China^1

Ningbo Urban Construction Design Institute Co., Ltd, Zhejiang Ningbo

315012, China^2

School of Civil Engineering, Central South University, Hunan Changsha

410075, China^3

Sinohydro Bureau 8 Co., Ltd, Hunan Changsha

410004, China^4

关键词: Construction scheme;    Existing railway;    Protection measures;    Protection schemes;    Railway subgrade;    Shield tunneling;    Tunneling project;    Urban rail transit;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/186/2/012061/pdf
DOI  :  10.1088/1755-1315/186/2/012061

来源: IOP

【 摘 要 】

The urban rail transit shield will have a bad influence on the railway's safe operation when it tunnels under existing railways. Main measures to avoid risks include reasonable analysis of the influence of tunneling under existing railway subgrade, design of effective construction schemes and reinforcement of protection of existing railways. According to the case of engineering of Wuhan Metro Line 7 under the existing Wuhan-Guangzhou Passenger Railway, the influence of the metro tunneling project on the settlement of Wuhan-Guangzhou Passenger Railway subgrade is analyzed. In addition, precautions for the tunneling project and protection measures for the existing railways are proposed herein.