软土地层中盾构施工参数对地表沉降的影响研究

陈自海; 杨建辉; 郭小东; 管亚君

doi:10.3973/j.issn.1672-741X.2015.12.008

隧道建设 >

2015 , Vol. 35 >Issue 12: 1281 - 1286

DOI: https://doi.org/10.3973/j.issn.1672-741X.2015.12.008

研究与探索

软土地层中盾构施工参数对地表沉降的影响研究

陈自海 ,
杨建辉 ,
郭小东 ,
管亚君

展开

（1. 浙江省交通工程建设集团有限公司，浙江杭州 310051； 2. 浙江科技学院建筑工程学院，浙江杭州 310023）

陈自海（1987—），男，湖南吉首人，2013年毕业于浙江工业大学，岩土工程专业，硕士，工程师，主要从事隧道工程、桥梁等相关领域的施工与研究工作。

收稿日期: 2014-10-08

修回日期: 2015-07-30

网络出版日期: 2016-01-08

收起

Study on Influence of Soft Ground Shield Tunneling Parameters on Ground Surface Settlement

CHEN Zihai ,
YANG Jianhui ,
GUO Xiaodong ,
GUAN Yajun

Expand

(1. Zhejiang Provincial Institute of Transportation Engineering Construction Group, Hangzhou 310051, Zhejiang, China; 2. Zhejiang University of Science and Technology, Hangzhou 310023, Zhejiang, China)

Received date: 2014-10-08

Revised date: 2015-07-30

Online published: 2016-01-08

Fold

摘要

为了解决软土地层中盾构隧道施工参数对地表沉降的影响问题，通过对杭州某地铁区间盾构施工进行监测，分析软土地层地表沉降的一般规律，结合该区间盾构隧道施工，采用ABAQUS有限元软件分析了注浆压力、浆液弹性模量、土舱压力等因素对地表沉降的影响。研究表明：土舱压力对地表沉降影响最大，注浆压力次之，浆液弹性模量的影响最小。地表沉降由土体塌陷沉降和土体固结沉降2部分组成，在盾构试掘进阶段对施工参数进行调整和优化，能较好地控制地表沉降。

关键词： 地铁; 盾构隧道; 地表沉降; 注浆压力; 浆液弹性模量; 土舱压力; 软土地层

本文引用格式

陈自海 , 杨建辉 , 郭小东 , 管亚君 . 软土地层中盾构施工参数对地表沉降的影响研究[J]. 隧道建设, 2015 , 35(12) : 1281 -1286 . DOI: 10.3973/j.issn.1672-741X.2015.12.008

Abstract

The rule of ground surface settlement caused by shield tunneling in soft strata is analyzed, with a shieldbored running tunnel of Hangzhou Metro as example. The influence of grouting pressure, grout elastic modulus and excavation chamber pressure on the ground surface settlement is analyzed by ABAQUS. The results show that the excavation chamber pressure has the largest influence on the ground surface settlement, the grouting pressure comes the second, and the grout elastic modulus comes the third. The ground surface settlement consists of settlement induced by ground collapse and that induced by ground consolidation. The ground surface settlement can be effectively controlled if the tunneling parameters can be adjusted and optimized in the trial boring stage.

Key words： Metro; shield tunneling; ground surface settlement; grouting pressure; elasticity modulus of grout; excavation chamber pressure; weak strata

Options

文章导航

〈

〉

模态框（Modal）标题

摘要

本文引用格式

Abstract