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-  2016 

下穿地铁深基坑开挖影响的监测分析 Analysis of monitoring of deep foundation pit above subway tunnel

Keywords: 深基坑,开挖影响,下穿地铁,监测

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Abstract:

临近地铁隧道的软土深基坑开挖时,若不能严格控制基坑施工效应,既有盾构隧道易出现损坏.在杭州市萧山区彩虹大道(工人路-市心路)B标段深基坑工程开挖过程中,对基坑下穿地铁隧道受影响范围内的隧道位移、收敛等进行监测,同时开展基坑地下连续墙与土体深层水平位移、地下水位、支撑轴力、地表和周边建筑物沉降、基坑围护墙顶与立柱沉降的监测工作.数据分析结果表明:基坑开挖对下穿隧道的影响以竖向位移为主,对水平位移和收敛变形影响较小;地下连续墙深层墙体水平位移与深层土体水平位移有明显的相关性,可用墙体水平位移代替土体水平位移;基坑地下水位的变化趋势与周边建筑物沉降变化趋势相同,开挖期间需密切关注地下水位的变化;基坑隆起是导致支撑轴力出现负值的主要原因,当支撑轴力出现负值时应高度关注坑底隆起和地表下陷

References

[1]  丁智,王达,虞兴福,等.杭州地铁新塘路、景芳路交叉口工程深基坑监测分析[J].岩土工程学报,2013,35(增刊2):445-451.Ding Zhi,Wang Da,Yu Xingfu,et al.Monitoring and analysis of deep foundation pit at Xintang Road-Jingfang Road cross of Hangzhou Metro[J].Chinese Journal of Geotechnical Engineering,2013,35(S2):445-451.
[2]  张雪婵,龚晓南,尹序源,等.杭州庆春路过江隧道江南工作井监测分析[J].岩土力学,2011,32(增刊1):488-494.Zhang Xuechan,Gong Xiaonan,Yin Xuyuan,et al.Monitoring analysis of retaining structures for Jiangnan foundation pit of Qingchun road river-crossing tunnel in Hangzhou[J].Rock and Soil Mechanics,2011,32(S1):488-494.
[3]  Burford D.Heave of tunnels beneath the shell center,London,1959-1986[J].Geotechnique,1988,38(1):135-137.
[4]  Chang C T,Sun C W,Duann S W,et a1.Response of a taipei rapid transit system(TRTS)tunnel to adjacent excavation[J].Tunnelling and Underground Space Technology,2001,16(3):151-158.
[5]  杨有海,王建军,武进广,等.杭州地铁秋涛路车站深基坑信息化施工监测分析[J].岩土工程学报,2008,30(10):1550-1554.Yang Youhai,Wang Jianjun,Wu Jinguang,et al.Informationized construction monitoring analysis of deep foundation pit for Qiutao Road Station of Hangzhou Metro[J].Chinese Journal of Geotechnical Engineering,2008,30(10):1550-1554.
[6]  张忠苗,赵玉勃,吴世明,等.过江隧道深基坑中SMW工法加钢支撑维护结构现场监测分析[J].岩石力学与工程学报2010,29(6):1270-1278.Zhang Zhongmiao,Zhao Yubo,Wu Shiming,et al.In-situ monitoring analysis of retaining structures of SMW piles plus steel support in deep foundation pit of river-crossing tunnel[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(6):1270-1278.

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