设置变形调节装置桩筏基础设计方法及工程实践

Design method and engineering example of piled raft foundation with settlement adjustor

设置变形调节装置桩筏基础通过调节装置实现对桩土支承刚度的调整与优化,使其可应用于端承型桩基桩土共同作用、变刚度调平设计、老桩的再生利用以及土岩结合地基等支承刚度严重不均匀的情况。作为一种新的桩筏基础形式,工程实践表明设置变形调节装置桩筏基础可取得显著的经济效益和社会效益。为推动其进一步应用与发展,形成成套设计理论与方法,本文详细介绍了变形调节装置桩筏基础的设计过程,并通过一工程实例对其设计方法进一步进行了分析,供广大工程技术人员参考。

Using settlement adjustor,piled raft foundation with settlement adjustor realized adjustment and optimization of supporting stiffness of pile-soil.Piled raft foundation with settlement adjustor could be applied to all these fields,pile-soil interaction of endbearing pile foundation,optimized design of pile foundation stiffness to reduce differential settlement,regeneration of old pile foundation,and soil-rock composite subgrade.As new form of piled raft foundation,piled raft foundation with settlement adjustor had achieved significant economic benefits and social benefits.In order to promote the apply and development of piled raft foundation with settlement adjustor and form serial design theory and method,this paper introduced detailedly design process of piled raft foundation with settlement adjustor,and analysed its design method through engineering example.All content above couled be available for reference to technician and relative person.