基于有限元数值模拟的调水工程深基坑支护结构改进研究  

Improvement of Deep Excavation Support Structure in Water Diversion Projects Based on Finite Element Numerical Simulation

作　　者：成丽娟 CHENG Lijuan(China Railway 18th Bureau Group Construction and Installation Engineering Co.,Ltd.,Tianjin 300308,China)

机构地区：[1]中铁十八局集团建筑安装工程有限公司,天津300308

出　　处：《佳木斯大学学报(自然科学版)》2025年第1期125-129,共5页Journal of Jiamusi University:Natural Science Edition

摘　　要：泵站在调水工程中发挥着压力维持、调节水位等作用。为了对泵站深基坑的支护结构进行改进,研究通过有限元软件构建了对应的数值模型,并通过该模型来分析影响基坑变形的结构参数。此外,为了确定最终的改进方案,研究采用了正交试验法、极差分析和方差分析。结果显示,改进后地表沉降、横轴和纵轴方向位移的下降幅度最大值分别为1.52mm,2.82mm和2.5mm。该改进能够更好地保障深基坑开挖过程的稳定性,为深基坑支护提供更好的方案支持。Pumping stations play a role in maintaining pressure and regulating water levels in water diversion projects.In order to improve the support structure of the deep foundation pit of the pumping station,a numerical model was constructed using finite element software to analyze the structural parameters that affect the deformation of the foundation pit.In addition,in order to determine the final improvement plan,the study used orthogonal experimental method,range analysis,and analysis of variance.The results showed that the maximum decrease in surface subsidence,horizontal and vertical displacement after improvement were 1.52mm,2.82mm,and 2.5mm,respectively.This improvement can better ensure the stability of deep foundation pit excavation process and provide better scheme support for deep foundation pit support.

关 键 词：有限元 支护结构 改进 泵站 深基坑 

分 类 号：TV223.4[水利工程—水工结构工程]