PPRC预制桩复合地基桩土共同作用机理理论研究  

Theoretical Study on Pile-Soil Interaction Mechanism of PPRC Prefabricated Pile Composite Foundation

作　　者：郑展展 孙烁烁 Zheng Zhanzhan;Sun Shuoshuo(Shangqiu Institute of Technology,Shangqiu Henan 476000,China)

机构地区：[1]商丘工学院,河南商丘476000

出　　处：《河北能源职业技术学院学报》2025年第1期68-71,共4页Journal of Hebei Energy College of Vocation and Technology

基　　金：2023年商丘工学院校级重点科研项目“PPRC预制桩复合地基豫东地区适用性及桩土共同作用机理研究”(2023KYXM04);2022年商丘工学院校级重点科研项目“豫东黄泛区岩土体注浆加固技术研究”(2022KYXM03);河南省高等学校重点科研项目“高层住宅拉结式双钢板组合剪力墙抗震性能研究”(24B560020)。

摘　　要：预制桩复合地基是一种灵活运用地基工程、土体力学、施工工艺等学科知识,根据具体地质环境和工程需求,精心设计施行的地基处理办法。其涵盖的广泛性和实用性使其深受地基处理领域的青睐,而PPRC预制桩复合地基,以其成桩工艺成熟、成桩质量良好,能较好解决断桩缩颈等问题,逐渐被推广。本文分析了PPRC预制桩复合地基承载力的理论公式推导,分析了相关的应用案例,对比CFG桩复合地基经济性,整体节约大约12.8%,且理论受力静载载荷符合程度较高,其研究结论旨在为工程设计人员提供理论参考。Prefabricated pile composite foundation is a kind of foundation treatment method which is carefully designed and implemented according to the specific geological environment and engineering needs by flexible use of foundation engineering,soil mechanics,construction technology and other disciplines.Its universality and practicality make it favored by the field of foundation treatment.And PPRC prefabricated pile composite foundation is gradually popularized because of its mature pile forming technology,good pile forming quality,and can better solve the problems of broken pile shrinking neck.This paper analyzes the theoretical formula derivation of the bearing capacity of PPRC prefabricated pile composite foundation,and analyzes the relevant application cases.Compared with the economy of CFG pile composite foundation,the overall saving is about 12.8%,and the theoretical static load conforms to a higher degree.The research conclusion aims to provide theoretical reference for engineering designers.

关 键 词：PPRC预制桩 复合地基承载力 理论参考 

分 类 号：TU753[建筑科学—建筑技术科学]