塑料排水板与混凝土管桩联合的新型地基处理方法研究

Research on New Ground Treatment Method of Plastic Drainage Plate and Concrete Pipe Pile

通过介绍排水固结法的固结原理、组成部分及常用的排水材料,堆载预压处理公路软土地基设计及施工要求,以及复合地基加固机理和破坏模式,分别总结了水泥搅拌桩及预应力混凝土管庄在工程应用中使用条件、加固机理、设计原则及施工工艺。通过总结排水固结法与复合地基的特点,提出了组合型复合地基采用塑料排水板与混凝土管桩联合的新型地基处理方法。

By introducing drainage consolidation the consolidation principle, component and common drain-age materials, surcharge preloading in treatment of highway soft soil foundation design and construction re-quirements, and introducing the reinforcement mechanism and the failure modes of the composite founda-tion, this paper summarized the cement mixing pile and prestressed concrete pipe Zhuang in engineering ap-plication conditions of use, the reinforcement mechanism, design principles and construction technology. Bysummarizing the characteristics of drainage consolidation method and composite foundation, a new type offoundation treatment method was proposed, which was combined with plastic drainage plate and concretepipe pile.