富水砂卵石层明挖隧道基础处理方案研究

doi:10.3973/j.issn.1672-741X.2012.06.016

隧道建设（中英文） ›› 2012, Vol. 32 ›› Issue (6): 838-842.DOI: 10.3973/j.issn.1672-741X.2012.06.016

富水砂卵石层明挖隧道基础处理方案研究

翟可

（中铁隧道勘测设计院有限公司，天津 300133）

收稿日期:2012-09-13 修回日期:2012-10-09 出版日期:2012-12-20 发布日期:2012-12-28
作者简介:翟可（1970—），男，河南西平人，1990年毕业于西南交通大学土木工程专业，本科，高级工程师，现从事隧道及地下工程设计工作。

Study on Foundation Treatment of Opencut Tunnel Located in  Waterrich Sandy Cobble Ground

ZHAI Ke

（China Railway Tunnel Survey ＆ Design Institute Co., Ltd., Tianjin 300133, China）

Received:2012-09-13 Revised:2012-10-09 Online:2012-12-20 Published:2012-12-28

摘要/Abstract

摘要： 在确保地下水流径畅通的条件下，为解决明挖隧道基础富水砂卵石层中地下动水引起细小颗粒损失使隧道基础产生较大沉降变形的难题，对该地层选取设专用过水通道的满堂加固方案和抽条加固方案进行综合比选，经2方案地基沉降计算对比分析，确定选取沉降量较小的抽条加固方案；根据现场量测数据分析，该方案地基沉降量完全满足工程需要，说明选取抽条加固处理含动水砂卵石隧道地基的方案是合理、可行的。

关键词: 明挖隧道, 富水砂卵石地基, 地下动水, 抽条加固, 整体加固+专用过水通道, 工后沉降

Abstract: The foundation of an opencut tunnel is located in waterrich sandy cobble ground. The particles of the ground will be lost due to the dynamic ground water, which may cause serious settlement to the foundation of the tunnel. Two types of consolidation methods, i.e., “full consolidation+drain pass” method and stripshaped consolidation method, are studied for the consolidation of the foundation of the opencut tunnel. In the end, stripshaped consolidation method is adopted on basis of study results. The field monitoring data show that stripshaped consolidation method can meet the requirements of the works and is suitable for the consolidation of the foundation of tunnels located in waterrich sandy cobble ground.

Key words: opencut tunnel, waterrich sandy cobble ground, dynamic ground water, stripshaped consolidation, full consolidation+drain pass, postconstruction settlement

翟可. 富水砂卵石层明挖隧道基础处理方案研究[J]. 隧道建设, 2012, 32(6): 838-842.

ZHAI Ke. Study on Foundation Treatment of Opencut Tunnel Located in  Waterrich Sandy Cobble Ground[J]. Tunnel Construction, 2012, 32(6): 838-842.

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富水砂卵石层明挖隧道基础处理方案研究

Study on Foundation Treatment of Opencut Tunnel Located in  Waterrich Sandy Cobble Ground

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