• 中国科学引文数据库(CSCD)来源期刊
  • 中文核心期刊中文科技核心期刊
  • Scopus RCCSE中国核心学术期刊
  • 美国EBSCO数据库 俄罗斯《文摘杂志》
  • 《日本科学技术振兴机构数据库(中国)》
二维码

隧道建设(中英文) ›› 2013, Vol. 33 ›› Issue (12): 999-1003.DOI: 10.3973/j.issn.1672-741X.2013.12.004

• 研究与探索 • 上一篇    下一篇

北京地铁8号线盾构施工参数对古旧平房群沉降规律的影响分析

王法1,雷崇红2,韩煊1,周宏磊1   

  1. (1.北京市勘察设计研究院有限公司, 北京 100038; 2.北京市轨道交通建设管理有限公司, 北京 100037)
  • 收稿日期:2013-09-05 修回日期:2013-10-10 出版日期:2013-12-20 发布日期:2013-12-27
  • 作者简介:王法(1982—),男,北京人,2007年毕业于北京工业大学岩土工程专业,硕士,工程师,主要从事地下隧道技术研究工作。

Analysis on Influence of Shield Tunneling Parameters on Settlement Pattern of Old Buildings: Case Study on Line 8 of Beijing Metro

WANG Fa1, LEI Chonghong2, HAN Xuan1, ZHOU Honglei1   

  1. (1. BGI Engineering Consultants Ltd., Beijing 100038, China;  2. Beijing MRT Construction Administration Corporation, Beijing 100037, China)
  • Received:2013-09-05 Revised:2013-10-10 Online:2013-12-20 Published:2013-12-27

摘要:

以北京地铁8号线二期某区间盾构工程为背景,通过对现场沉降监测结果进行分析,并将分析结果与盾构施工参数对比,研究盾构法施工中的盾构施工参数(包括掘削面稳定参数和注浆管理参数)对沉降规律的影响,总结盾构施工参数变化与沉降规律之间的关系。主要研究成果如下: 1)在盾构掘进过程中,需要从掘削面稳定和注浆质量管理2方面来实现对地面沉降风险的控制; 2)施工中实际掘土量超过设计掘土量较多的区段,地层损失率相对较大; 3)对于盾构长距离下穿古旧平房群工程,浆液总注入率在200%~350%有利于地表沉降的控制。

关键词: 北京地铁, 盾构隧道, 施工参数, 现场监测, 沉降规律

Abstract:

The influence of shield tunneling parameters, including excavation face stabilizing parameters and grouting management parameters, on settlement pattern has been studied by analyzing the measured data and comparing the analysis results with shield tunneling parameters, with the tunneling of Line 8 of Beijing Metro as an example. The relationship between shield tunneling parameters and settlement pattern are summarized. The achievement of this paper can be summarized as follows: 1) In the process of shield tunneling, the ground settlement risk can be reduced by excavation face stabilizing management and grouting management; 2) There will be a high ground loss ratio in the section where the soil volume excavated is higher than that planned; 3) As for the project where there exists a long shield tunneling section beneath old buildings, the total grouting ratio should be controlled in the range of 200%~350%, which is good for the ground settlement control. 

Key words: Beijing Metro, shieldbored tunnel, tunneling parameter, site monitoring, settlement pattern