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隧道建设(中英文) ›› 2011, Vol. 31 ›› Issue (2): 192-197.

• 研究与探索 • 上一篇    下一篇

地铁车站洞桩法施工引起的邻近管线沉降规律研究

王霆1,2,罗富荣1,刘维宁2 ,李兴高2   

  1. 1.北京市轨道交通建设管理有限公司, 北京 100037; 2.北京交通大学土木建筑工程学院, 北京 100044
  • 收稿日期:2011-01-11 修回日期:2011-03-22 出版日期:2011-04-20 发布日期:2011-05-11
  • 作者简介:王霆(1980—),男,青海西宁人,2009年毕业于北京交通大学隧道工程专业,博士,工程师,主要从事地铁施工方法与环境影响方面的研究工作。

Study on Pipeline Settlement induced by Construction of Metro Station by PBA Method

WANG Ting1,2, LUO Fu-Rong1, LIU Wei-Ning2, LI Xin-Gao2   

  1. 1. Beijing MRT Construction Administration Co., Ltd., Beijng 100037, China;  2. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
  • Received:2011-01-11 Revised:2011-03-22 Online:2011-04-20 Published:2011-05-11

摘要:

为了解地层变形引起的管线沉降规律,依托北京地铁10号线黄庄站工程,基于地表和管线沉降的实测数据,利用时程曲线分析车站洞桩法施工引起的邻近典型管线变形规律。洞桩法车站施工引起的管线沉降主要分为3个变化阶段:初期缓慢变化期,掌子面通过测点时的急剧变化期和掌子面通过后的稳定期。管道与土体在车站施工过程中产生一定的沉降差,在管道正下方土体开挖时差异沉降迅速增大,掌子面通过测点一定距离后,差异沉降趋于稳定。

关键词: 地铁车站, 洞桩法, 地下管线, 管线沉降

Abstract:

The regularity of the settlement of neighboring pipelines induced by the construction of Metro stations by PBA method is analyzed on basic of the monitoring data of the settlement of the ground surface and pipeline during the construction of Huangzhuang Station on line 10 of Beijing Metro. The settlement of the ground surface and pipelines induced by the construction of the Metro station by PBA method can be divided into 3 stages, i.e., the initial slowdeveloping stage, the rapiddeveloping stage when the tunnel face is passing the monitoring points and the stable stage when the tunnel face has passed the monitoring points. The differential settlement between the pipelines and the ground increases rapidly when excavation is carried out below the pipelines and the differential settlement becomes stable after the tunnel face has passed the monitoring points.

Key words: Metro station, PBA method, underground pipeline, settlement