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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.
Aiming at the deformation of the steel pipe pile in the engineering example, based on the Coulomb theory, a simplified cantilever beam model of the steel pipe pile is established by using the equivalent beam method considering the influence of the surrounding environment on the stability of the foundation pit. By using the structure The mechanical principle is used to calculate the force of the anchor cable and compare with the design value to analyze the deformation of the deep foundation pit support and get the reason of the deformation of the foundation pit and to develop the reinforcement measures.The results show that this method can reduce the calculation amount, Effectively formulate the corresponding reinforcement measures.At the same time, it emphasizes that the water infiltrated around the foundation pit has an adverse effect on the grouting effect and drawing effect of the anchor cable and needs to be strictly controlled and prevented.