层状地基中地铁施工垂直穿越既有管道变形分析：耦合方法与两阶段方法对比

›› 2010, Vol. 31 ›› Issue (S2): 229-235.

层状地基中地铁施工垂直穿越既有管道变形分析：耦合方法与两阶段方法对比

张治国^{1, 2}，黄茂松²，王卫东³，张孟喜¹

1. 上海大学土木工程系, 上海 200072; 2. 同济大学地下建筑与工程系, 上海 200092; 3. 华东建筑设计研究院有限公司, 上海 200002

收稿日期:2010-07-29 出版日期:2010-12-10 发布日期:2011-01-12
作者简介:张治国，男，1978年生，博士，博士后，主要从事城市地下工程施工对周围环境影响评估方面的研究。
基金资助:
国家杰出青年科学基金资助项目(No. 50825803)；国家自然科学基金资助项目（No. 51008188）；教育部高等学校博士点基金项目(No. 0247066)；中国博士后科研基金项目（No. 20100470677）。

Deformation analysis of existing pipe traversed vertically by tunneling in layered soil: comparison between coupling method and two-stage method

ZHANG Zhi-guo^1.2, HUANG Mao-song², WANG Wei-dong³, ZHANG Meng-xi¹

1. Department of Civil Engineering, Shanghai University, Shanghai 200072, China; 2. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 3. East China Architecture Design Institute, Shanghai 200002, China

Received:2010-07-29 Online:2010-12-10 Published:2011-01-12

摘要/Abstract

摘要：

地铁施工引起的临近既有管道变形是城市轨道交通建设中较为关心的施工问题。目前，针对该领域的研究一般假定地基土体均质，而没有考虑地基的自然成层性，此外大多没有考虑既有管道变形与土体自由位移场相互作用的耦合效应。为此，基于弹性层状半空间地基模型，针对隧道开挖边界引入非均匀收敛变形径向土体位移移动模式，提出了层状地基中地铁施工垂直穿越既有管道变形的耦合分析方法和两阶段分析方法，并进行了算例对比和参数分析。结果表明：耦合方法在分析非均质层状地基时具有较好的计算精度，其精度要高于基于Loganathan和Poulos公式的两阶段方法；同时，地基土体的成层性对既有地下构筑物的变形性能具有较大影响。研究成果可为合理制定城市地铁施工对周围环境影响的保护措施提供一定的理论依据。

关键词: 地铁, 管道, 层状地基, 垂直穿越, 耦合分析, 两阶段分析

Abstract:

The influence on the deformation behavior of existing pipes induced by tunneling is a problem highly concerned by the geotechnical engineers during the urban subway construction. However, previous solutions are usually based on the assumption that the ground is homogeneous. There has very little investigation into the problem of tunneling in multilayered soils and coupling effects between existing municipal pipes and surrounding soil. The elastic layered half space soil model is combined with the analysis to consider the soil nonhomogeneous characters, and the nonuniform convergence soil deformation model is imposed to the tunnel opening boundary, the coupling method and two-stage method are presented for response analysis for existing pipes traversed vertically by tunneling in layered soil. The results indicate that the accuracy of the proposed coupling method is better than the two-stage method based on the closed form solution by Loganathan and Poulos (1998). And the soil nonhomogeneity, neglected in previous solutions, has a significant influence on the deformation behavior of existing pipes induced by tunneling in multilayered soils. It may provide certain basis to draw up correctly protective measurements of environmental effects influenced by adjacent tunneling.

Key words: subway, pipe, layered soil, traverse vertically, coupling analysis, two-stage analysis

中图分类号:

U 45

张治国，黄茂松，王卫东，张孟喜. 层状地基中地铁施工垂直穿越既有管道变形分析：耦合方法与两阶段方法对比[J]. , 2010, 31(S2): 229-235.

ZHANG Zhi-guo, HUANG Mao-song, WANG Wei-dong, ZHANG Meng-xi. Deformation analysis of existing pipe traversed vertically by tunneling in layered soil: comparison between coupling method and two-stage method[J]. , 2010, 31(S2): 229-235.

参考文献

相关文章 15

[1]	丁智, 张霄, 金杰克, 王立忠, . 基坑全过程开挖及邻近地铁隧道变形实测分析[J]. 岩土力学, 2019, 40(S1): 415-423.
[2]	陈文化, 张谦. 地铁列车进出站时土层空间振动特性分析[J]. 岩土力学, 2019, 40(9): 3656-3661.
[3]	高广运, 谢伟, 陈娟, 赵宏, . 高铁运行引起的高架桥群桩基础地面振动衰减分析[J]. 岩土力学, 2019, 40(8): 3197-3206.
[4]	孙飞, 张志强, 易志伟. 正断层黏滑错动对地铁隧道结构影响的模型试验研究[J]. 岩土力学, 2019, 40(8): 3037-3044.
[5]	张海廷, 杨林青, 郭芳, . 基于SBFEM的层状地基埋置管道动力响应求解与分析[J]. 岩土力学, 2019, 40(7): 2713-2722.
[6]	杜文, 王永红, 李利, 朱连臣, 朱浩天, 王有旗, . 双层车站密贴下穿既有隧道案例分析及隧道沉降变形特征[J]. 岩土力学, 2019, 40(7): 2765-2773.
[7]	韩俊艳, 侯本伟, 钟紫蓝, 赵密, 李立云, 杜修力. 多点非一致激励下埋地管道多台阵振动台试验方案研究[J]. 岩土力学, 2019, 40(6): 2127-2139.
[8]	刘念武, 陈奕天, 龚晓南, 俞济涛, . 软土深开挖致地铁车站基坑及邻近建筑变形特性研究[J]. 岩土力学, 2019, 40(4): 1515-1525.
[9]	庄海洋, 付继赛, 陈苏, 陈国兴, 王雪剑, . 微倾斜场地中地铁地下结构周围地基液化与变形特性振动台模型试验研究[J]. 岩土力学, 2019, 40(4): 1263-1272.
[10]	蒋中明, 刘澧源, 赵海斌, 唐栋, 胡炜, 梅松华, 李鹏, . 地下储气库热力耦合数值分析动态边界条件研究[J]. 岩土力学, 2019, 40(3): 1149-1157.
[11]	冯凌云, 朱斌, 代加林, 孔德琼, . 深海管道水平向管−土相互作用大变形连续极限分析[J]. 岩土力学, 2019, 40(12): 4907-4915.
[12]	杨苏春, 张明义, 王永洪, 桑松魁, 苗德滋. 基于现场试验的闭口静压管桩贯入层状地基桩端阻力研究[J]. 岩土力学, 2018, 39(S2): 91-99.
[13]	包汉营，陈文化，张谦. 基于薄层法和移动坐标系法的地铁竖向振动在成层土层中传播[J]. , 2018, 39(9): 3277-3284.
[14]	张玉伟，谢永利，翁木生，. 非对称基坑开挖对下卧地铁隧道影响的离心试验[J]. , 2018, 39(7): 2555-2562.
[15]	韩泽军，林皋，周小文，杨林青. 横观各向同性层状地基动应力响应的求解与分析[J]. , 2018, 39(6): 2287-2294.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed