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天津融创广场基坑工程监测及数值模拟分析
引用本文:陆培毅,李金清,雷华阳,陈志明. 天津融创广场基坑工程监测及数值模拟分析[J]. 天津大学学报(自然科学与工程技术版), 2012, 0(7): 582-586
作者姓名:陆培毅  李金清  雷华阳  陈志明
作者单位:[1]天津大学建筑工程学院,天津300072 [2]天津大学滨海土木工程结构与安全教育部重点实验室,天津300072
摘    要:针对天津融创广场基坑开挖工程,建立了考虑土与结构相互作用的三维有限元模型,计算得到了支护结构及支撑系统的变形和内力值.通过与现场监测数据的对比,使计算模型及分析方法得到了验证.分析结果表明:对于本工程具有深浅坑并存、平面形状复杂、采用多种支护形式的基坑,具有明显的空间效应,简单地采用弹性抗力法或平面有限元分析方法不能得到正确的分析结果,三维空间的有限元分析十分必要

关 键 词:基坑  环梁支护体系  监测  空间效应  数值模拟

Monitoring and Numerical Simulation of Foundation Pit for Rongchuang Square in Tianjin
LU Pei-yi,LI Jin-qing,LEI Hua-yang,CHEN Zhi-ming. Monitoring and Numerical Simulation of Foundation Pit for Rongchuang Square in Tianjin[J]. Journal of Tianjin University(Science and Technology), 2012, 0(7): 582-586
Authors:LU Pei-yi  LI Jin-qing  LEI Hua-yang  CHEN Zhi-ming
Affiliation:1. School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2. Key Laboratory of Coast Civil Structure Safety of Ministry of Educations Tianjin University, Tianjin 300072, China)
Abstract:Three-dimensional finite element module considering the soil-structure interaction was used in the analysis of a foundation pit for Rongchuang square in Tianjin. Through analysis, the internal forces and deformations of re- taining structure and support system were gained. By comparing the theoretical analysis results with the field monitor- ing data, the calculating module and method of analysis were verified. Results show that for the pit with both shallow and deep pits, complex shape, and multi-retaining system, space effects are more apparent. Correct results could not be obtained if simply the elastic-reaction method and plane FEM were used. It's very necessary to use three- dimensional finite element method.
Keywords:foundation pit  ring beam bracing system  monitoring  space effect  numerical simulation
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