某超深沉井不排水开挖数值模拟分析  

Numerical Simulation Analysis on Undrained Excavation of Ultra-deep Open Caisson

作　　者：吕俊杰 付武荣 LYU Junjie;FU Wurong

机构地区：[1]上海公路桥梁(集团)有限公司,上海市200433

出　　处：《城市道桥与防洪》2023年第12期132-135,M0015,共5页Urban Roads Bridges & Flood Control

基　　金：上海市科学技术委员会上海工程技术研究中心与专业技术服务平台项目(20DZ2251900)。

摘　　要：南京某沉井项目采用了下沉式竖井掘进施工方法(VSM),拟该工艺为国内首次运用。基于MIDAS GTS NX有限元分析软件,对下沉式竖井掘进过程进行了数值模拟,并将模拟结果与实际监测数据进行对比,分析其施工影响。结果表明,模拟数据与监测数据吻合良好,为以后此工法的运用提供了参考。A vertical shaft sinking construction method(VSM)was adopted in an open caisson project in Nanjing.This process is the first application in China.Based on the MIDAS GTS NX finite element analysis software,the numerical simulation of vertical shaft sinking process is carried out.And compared with the practical monitoring data,its construction influence is analyzed.The result shows that the simulation data are in good agreement with the monitoring data,which provides a reference for the application of this construction method in the future.

关 键 词：不排水开挖 超深沉井 下沉式竖井掘进施工方法 VSM 

分 类 号：TU753[建筑科学—建筑技术科学]