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施工技术

北京地区盾构区间泵房设计及施工的若干建议

  • 杨壮志
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  • (中铁隧道勘测设计研究院, 河南 洛阳 471009)
杨壮志(1982—),男,河北秦皇岛人,2005年毕业于石家庄铁道学院,地下工程专业,本科,工程师,目前主要从事北京地铁矿山法安全风险咨询工作。

收稿日期: 2014-12-15

  修回日期: 2015-07-23

  网络出版日期: 2015-11-09

Suggestions on Design and Construction of Pump Stations of  Shieldbored Running Tunnels in Beijing

  • YANG Zhuangzhi
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  • (Survey, Design & Research Institute, China Railway Tunnel Group Co. Ltd., Luoyang 471009, Henan, China)

Received date: 2014-12-15

  Revised date: 2015-07-23

  Online published: 2015-11-09

摘要

为降低北京地区盾构区间泵房施工的风险,采用总结与分析的方法,总结近年盾构区间泵房设计与施工方面的经验和教训,提出3条建议: 1)在满足要求的情况下,适当减小泵房埋深以降低施工难度;2)在目前的施工条件下,富水地层单纯依靠洞内深孔注浆止水开挖泵房,涌水、涌砂风险较高,宜尽量采取冻结法或地面降水方案;3)深孔注浆方案作为最终的优化措施。

本文引用格式

杨壮志 . 北京地区盾构区间泵房设计及施工的若干建议[J]. 隧道建设, 2015 , 35(10) : 1071 -1076 . DOI: 10.3973/j.issn.1672-741X.2015.10.016

Abstract

In the paper, the experience and lessons drawn in the design and construction of the pumping stations of the shieldbored running tunnels in Beijing are summarized and the following suggestions are made: 1) If possible, the cover depth of the pumping stations should be appropriately reduced so as to minimize the difficulty in the construction of the pump stations; 2) In waterrich ground where only deephole grouting is made, there is great water/sand inflow risk in the construction of the pumping stations, therefore artificial freezing or ground surface dewatering should be made as far as possible; 3) Deephole grouting may be used as the final optimized countermeasure. 

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