城区地铁结构近距离穿越古建筑之复合技术探讨

左鹰

doi:10.3973/j.issn.1672-741X.2012.02.020

隧道建设 >

2012 , Vol. 32 >Issue 2: 228 - 233

DOI: https://doi.org/10.3973/j.issn.1672-741X.2012.02.020

施工技术

城区地铁结构近距离穿越古建筑之复合技术探讨

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(中铁隧道集团二处有限公司，河北三河 065201)

左鹰(1956—)，男，湖南衡阳人，1987年毕业于西南交通大学工程管理专业，专科，工程师，现从事经营投标管理工作。

收稿日期: 2012-02-01

修回日期: 2012-03-14

网络出版日期: 2012-05-03

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Composite Technologies for Mining below Hostoric Buildings in Urban Area

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(The Second Engineering Co., Ltd. of China Railway Tunnel Group, Sanhe 065201, Hebei, China)

Received date: 2012-02-01

Revised date: 2012-03-14

Online published: 2012-05-03

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摘要

在暗挖通道施工过程中，为保证侧上方百年历史古建筑物（属于危楼）变形可控，采用地表复合锚杆桩将暗挖通道和建筑物隔离、洞内深孔注浆对通道拱部粉细砂层进行超前加固的复合技术。通过对比监测统计数据，采取的复合加固措施达到了预期的目的。对比其他隔离、注浆加固措施，所选措施受场地制约小，更适用于城市地铁施工。

关键词： 地铁; 暗挖旁穿; 古建筑; 复合锚杆隔离桩; 深孔注浆加固

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左鹰 . 城区地铁结构近距离穿越古建筑之复合技术探讨[J]. 隧道建设, 2012 , 32(2) : 228 -233 . DOI: 10.3973/j.issn.1672-741X.2012.02.020

Abstract

A horizontal gallery of a Metro station passes below a historic church. In order to control the displacement of the historic church during the construction of the horizontal gallery, composite anchor piles are installed from the ground surface to separate the historic church from the horizontal gallery and deephole grouting is executed from inside the tunnel to consolidate the fine silt sand strata at the tunnel crown. The monitoring results show that the composite consolidation measures taken are effective. The measures taken are superior to others in terms of site requirement and therefore are more suitable to be used in urban Metro construction.

Key words： Metro; mining below ancient building; hostoric building; composite bolt separating pile; deephole grouting; reinforcement

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