隧道下穿施工诱发框架结构建筑物变形规律研究

doi:10.11779/CJGE2015S1022

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (4665 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要隧道下穿既有高大建筑物越来越多的出现在城市地铁建设中,有必要对建筑物受地铁隧道下穿影响发生变形的规律进行研究。采用FLAC^3D软件,考虑建筑物-土体-隧道共同作用,模拟了双线暗挖隧道先后穿越独立基础框架结构建筑物的工况。模拟结果表明框架结构的存在对隧道开挖引发的沉降位移曲线形状有明显影响,沉降槽深度明显减小,宽度有所增加。在垂直于隧道方向,上部结构的存在减小了柱间沉降差,使框架结构柱间基础沉降趋于平缓。最终柱间沉降差较大值出现在沉降槽曲线拐点两侧框架柱间。在平行于隧道方向,建筑物柱间沉降差与隧道掌子面位置密切相关,掌子面位置前后两柱间沉降差较大。隧道通过后,该方向上最终柱间沉降差将很小。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	周智
	衡朝阳
	孙曦源

关键词 ：下穿隧道, 框架结构, 共同作用, 沉降, 柱基沉降差

Abstract：Considering the interaction of building-soil-tunnel,the case of frame building with independent foundation undercrossed by double-line parallel shallow embedded tunnel is simulated by FLAC^3D. The results show that the stiffness of frame structure has a remarkable effect on foundation settling tank of the upper building. In the direction of perpendicular to the tunnel axis, the largest differential settlement between two frame columns usually happens around the inflection point of settlement curve, and the existence of the upper structure reduces the differential settlement between columns. The differential settlement relates to the relative position of tunnel face in the direction of parallel to tunnel axis, while it will be a very small value when the tunnel face is far away enough.

Key words： under-crossing tunnel frame structure interaction settlement differential settlement

收稿日期: 2015-03-26

基金资助:住房和城乡建设部课题（2013-K3-22）

作者简介: 周智(1982- ),男,高级工程师,主要从事岩土工程方面的设计、科研和施工。

引用本文:

周智, 衡朝阳, 孙曦源. 隧道下穿施工诱发框架结构建筑物变形规律研究[J]. 岩土工程学报, 2015, 37(zk1): 110-114. ZHOU Zhi, HENG Chao-yang, SUN Xi-yuan. Simulation study of deformation of frame structure caused by construction of under-crossing tunnels. Chinese J. Geot. Eng., 2015, 37(zk1): 110-114.

链接本文:

http://manu31.magtech.com.cn/Jwk_ytgcxb/CN/10.11779/CJGE2015S1022 或 http://manu31.magtech.com.cn/Jwk_ytgcxb/CN/Y2015/V37/Izk1/110

[1] 施成华, 彭立敏, 刘宝琛. 浅埋隧道开挖对地表建筑物的影响[J]. 岩石力学与工程学报, 2004, 23(19): 3310-3316. (SHI Cheng-hua, PENG Li-min, LIU Bao-chen. Influence of shallow tunnel excavation on ground surface buildings[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(19): 3310-3316. (in Chinese))
[2] 李进军, 王卫东, 黄茂松, 等. 地铁盾构隧道穿越对建筑物桩基础的影响分析[J]. 岩土工程学报, 2010, 32(增刊2): 166-170. (LI Jin-jun, WANG Wei-dong, HUANG Mao-song, et al. Influence of piles of structure induced by crossing tunnels[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(S2): 166-170. (in Chinese))
[3] 覃卫民, 赵荣生, 王浩, 等. 浅埋大跨隧道下穿建筑物的安全影响研究[J]. 岩石力学与工程学报, 2010, 29(增刊2): 3762-3768. (QIN Wei-min, ZHAO Rong-sheng, WANG Hao, et al. Study of building safety during shallow-buried large-span tunnel underpassing[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(S2): 3762-3768. (in Chinese))
[4] 韩煊, STANDING J R, 李宁. 隧道施工引起建筑物变形预测的刚度修正法[J]. 岩土工程学报, 2009, 31(4): 539-545. (HANG Xuan, STANDING J R, LI Ning. Modified stiffness approach to predict deformation of building induced by tunneling[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(4): 539-545. (in Chinese))
[5] 韩煊, 李宁, STANDING J R. Peck公式在我国隧道施工地面变形预测中的适用性分析[J]. 岩土力学, 2007, 28(1): 23-35. (HAN Xuan, LI Ning, STANDING J R. An adaptability study of Gaussian equation applied to predicting ground settlements induced by tunneling in China[J]. Rock and Soil Mechanics, 2007, 28(1): 23-35. (in Chinese))
[6] 刘波, 陶龙光, 李希平, 等. 地铁盾构隧道下穿建筑基础诱发地层变形研究[J]. 地下空间与工程学报, 2006, 2(4): 621-626. (LIU Bo, TAO Long-guang, LI Xi-ping, et al. Research of ground settlement induced by metro shield tunnel beneath building foundations[J]. Chinese Journal of Underground Space and Engineering, 2006, 2(4): 621-626. (in Chinese))
[7] 于宁, 朱合华. 盾构隧道施工地表变形分析与三维有限元模拟[J]. 岩土力学, 2004, 25(8): 1330-1334. (YU Ning, ZHU He-hua. Analysis of earth deformation caused by shield tunnel construction and 3D-FEM simulation[J]. Rock and Soil Mechanics, 2004, 25(8): 1330-1334. (in Chinese))
[8] 漆泰岳. 地铁施工引起地层和建筑物沉降特征研究[J]. 岩土工程学报, 2012, 34(7): 1283-1290. (QI Tai-yue. Settlement characteristics of strata and buildings caused by metro tunneling[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(7): 1283-1290. (in Chinese))