某灌区改造工程闸门基坑开挖施工数值模拟研究

Numerical Simulation Study on Gate Foundation Pit Excavation of an Irrigation Area Reconstruction Project

此次工程主要内容为对巴依托海渠、包孜渠、库逊渠、东干渠节水进行改造工程。为了保证灌区提升改造闸门基坑开挖施工的顺利进行,模拟基坑开挖位移和沉降过程。采用MIDAS GTS数值模拟技术还原整个施工过程,通过总体位移和沉降位移对基坑的排水效果和支护措施进行评估,结果表明,整个开挖过程施工、排水和支护控制得较好,达到了理想的基坑开挖效果。

The main content of this project is to transform the water conservation of Bayituohai Canal,Baozi Canal,Kuxun Canal and Donggan Canal.In order to ensure the smooth construction of the lifting of the irrigation area,the renovation of the floodgate and the excavation of the foundation pit,this paper simulates the displacement and settlement process of the foundation pit excavation.MIDAS GTS numerical simulation technology is used to restore the whole construction process,and the drainage effect and support measures of the foundation pit are evaluated through the overall displacement and settlement displacement.The results show that the construction,drainage and support in the entire excavation process are well controlled,and the desired excavation effect of the foundation pit is achieved.