内撑式基坑工程周围地下管线的性状分析  

BEHAVIOR ANALYSIS OF BURIED PIPELINE RESPONSE TO NEARBY EXCAVATION PIT WITH BRACED RETAINING STRUCTURE

作　　者：李大勇[1,2] 吕爱钟[1] 曾庆军[3] 

机构地区：[1]山东科技大学土木建筑学院 [2]同济大学地下建筑与工程系上海200092 [3]广东交通职业技术学院土木工程系

出　　处：《岩石力学与工程学报》2004年第4期682-687,共6页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家自然科学基金(50279018)重点资助项目;中国博士后科学基金(200333333)资助项目。

摘　　要：深基坑开挖对周围地下管线影响规律的研究,是基坑环境工程中的重要课题。考虑了土体、围护结构与地下管线三者的耦合作用,采用三维有限元法分析了内撑式基坑工程开挖对地下管线的影响规律,其中,包括内撑式基坑工程中的土体开挖步骤、支撑刚度、地下管线埋设、地下管线距离基坑远近等因素对地下管线的影响,并把这些因素进行了综合比较,得到了有价值的结论。The response of buried pipeline to nearby deep excavation in soft soil is an important project. The coupling actions of retaining structure,soil and pipeline are taken into account in this paper,and the behavior analysis of buried pipeline near deep excavation is obtained by three dimensional finite element method. The laws of buried pipeling response to deep excavation are related to many factors,such as the step of soil excavation,propping stiffness,depth of pipe below ground surface and the distance between pipe and excavation pit. The response results derived from the factors are obtained and compared,and some meaningful suggestions are proposed for engineering practice.

关 键 词：深基坑 开挖 地下管线 内撑式基坑工程 有限元法 性状分析 

分 类 号：TU473.2[建筑科学—结构工程]