摘要
Abstract
Aiming at the problem that prefabricated piles are less applied in the foundation pit in the hard soil area,the application of prefabri-cated piles in the foundation pit project is studied by taking the foundation pit support during the construction of rainwater and sewage pipeline in a southern city's expressway as an example and combining with the numerical simulation analysis method.The results show that:the overall stability of the pit with prefabricated piles as the supporting structure and the stability of anti-tilting are in accordance with the specification re-quirements;the top of the prefabricated piles in the process of support has the largest force and the largest horizontal deformation,and the hori-zontal displacement shows a triangular distribution along the pile body to the bottom of the pit;the largest horizontal displacement occurs at the bottom of the pit and about 2m away from the piles,and the largest vertical settlement occurs in the middle of the pit and 1.5m inside the sup-porting piles,while the largest vertical settlement is in the middle of the pit and 1.5m inside the supporting piles.1.5m inside the support pile,there is also a part of the vertical deformation is larger,the construction process to do a good job of protective measures.关键词
基坑工程/预制管桩/稳定性/数值模拟Key words
Foundation pit engineering/Prefabricated pipe pile/Stability/Numerical simulation分类
建筑与水利
