摘要
针对工程实例中钢管桩变形问题,基于库伦理论,在考虑施工周边环境对基坑支护稳定性的影响情况下,采用等值梁法,建立了钢管桩的简易悬臂梁模型,运用结构力学原理计算出锚索所受力,与设计值进行比较,对深基坑支护变形进行分析,得出基坑变形的原因并制定加固措施.结果表明:此方法可以减少计算量,能够快速有效地制定相应的加固措施.同时强调了基坑周边渗透出来的水对锚索的注浆效果和拉拔效果的不利影响,需要严格控制和预防.
For the problem of steel pipe pile deformation from an engineering example, based on Coulomb theory, in the case of considering surrounding environment influencing the stability of foundation pit support, this paper utilized the equivalent beam method, established a simple cantilever beam model of steel pipe pile, and used structural mechanics to calculate the force on the bolt and compared with design value. The reasons of a deep foundation pit support deformation was analyzed and measures to reinforce were specified. The result shows that the method can reduce the amount of calculation and take right reinforcement measures quickly and efficiently. At the same time, stress the water permeating through the surrounding has effect on anchor rope grouting and drawing, which need to control and prevent strictly.
作者
费鸿禄
张玉莹
杨智广
张龙飞
FEI Honglu ZHANG Yuying YANG Zhiguang ZHANG Longfei(Blasting Technical Institute, Liaoning Technical University, Fuxin 123000, China Inner Mongolia Hongda blasting engineering limited liability company, Baotou 014030, China)
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2017年第1期57-60,共4页
Journal of Liaoning Technical University (Natural Science)
关键词
深基坑支护
变形
周边环境
等值梁法
悬臂梁模型
deep foundation pit support
deforming
surrounding environment
equivalent beam method
cantilever beam model
