有限元计算分析在临既有线深基坑施工中的应用

针对复杂地质情况下临既有线的深基坑施工特点,通过模型建立,利用有限元进行对比分析、数据验算、科学论证,对基坑的支护方案进行了比选,在确保深基坑施工、既有线运营的双安全的前提下,在经济效益、工期方面获得了好的效果。

The Application of Finite Element Calculation and Analysis in Deep Foundation Pit Construction near Existing Railway

In the light of the features of deep foundation pit construction near existing railway under complex geological conditions, and through model establishment, this paper makes the comparative analysis, data calculation and scientific verification by using finite element method, and makes the comparison and selection of foundation pit’s supporting scheme, obtaining good results in economic benefit and construction period under the pre-conditions of guaranteeing the safety in the construction of deep foundation pit and in the operation of existing railway.