螺杆桩-土荷载传递规律和承载力研究现状  

Research Status of Load Transfer Mode Between Screw Pile and Soil and Bearing Capacity of Screw Pile

作　　者：吴术高 赵彦君 周佳成 王江东 朱兆荣 关伟[4] WU Shugao;ZHAO Yanjun;ZHOU Jiacheng;WANG Jiangdong;ZHU Zhaorong;GUAN Wei

机构地区：[1]中铁八局集团有限公司,四川成都610036 [2]兰州交通大学土木工程学院,甘肃兰州730070 [3]中铁西北科学研究院有限公司,甘肃兰州730070 [4]贵州大学国土资源部喀斯特环境与地质灾害重点实验室,贵州贵阳550025

出　　处：《铁道技术监督》2023年第11期64-70,共7页Railway Quality Control

基　　金：甘肃省重点研发计划(22YF7GA057)。

摘　　要：螺杆桩作为一种新型的异型截面桩,凭借承载能力高、环保、适用性强等优势在我国铁路工程领域中得到广泛应用。螺杆桩构造特殊,目前还存在着理论研究与实际应用不匹配的问题。介绍螺杆桩组成及其成桩工艺,探讨螺杆桩各项构造参数对于螺杆桩承载性能的影响,分析螺杆桩受荷时的荷载传递规律,总结螺杆桩单桩竖向承载力不同计算方法,为今后的研究和工程实践提供参考。As a new type of special-shaped pile,screw pile has been widely used in the field of railway engineering in China due to its advantages of high bearing capacity,environmental protection,and strong applicability.The struc⁃ture of screw piles is unique,and there is currently a mismatch between theoretical research and practical application.Introduce the composition and pile forming process of screw piles,explore the influence of various structural param⁃eters of screw piles on the bearing performance of screw piles,analyze the load transfer law of screw piles under load,summarize different calculation methods for vertical bearing capacity of single screw piles,so as to provide reference for future research and engineering practice.

关 键 词：路基加固 螺杆桩 成桩机理 承载力 荷载传递 

分 类 号：U213.152[交通运输工程—道路与铁道工程]