锚杆静压桩与夹墙梁在基础加固中的应用  

Application of Anchor Jacked Pile Combined with Hollow-Wall-Beam in Reinforcement of Foundation

作　　者：潘健[1] 周森[1] 

机构地区：[1]华南理工大学土木与交通学院,广东广州510640

出　　处：《汕头大学学报（自然科学版）》2011年第1期68-74,共7页Journal of Shantou University：Natural Science Edition

摘　　要：根据工程实际,将锚杆静压桩与其它技术联合使用,以达到安全、经济的效果.结合中山大学某独立学院宿舍楼群基础加固实例,分析探讨了锚杆静压桩工作、沉桩机理和设计参数的取值方法,介绍了锚杆静压桩承台与夹墙梁三种不同的连接方式及主要的施工工序.加固过程中对埋设点累计沉降进行观测,结果表明:加固初期至完成前,测点累计沉降继续发展,沉降速率呈递减趋势;加固完成后,测点累计沉降趋于稳定,倾斜率满足规范要求.加固方案对基础沉降发展起到了良好的控制作用.Anchor jacked pile is widely used in foundation reinforcement and settlement controlling of existing buildings. It can be combined with other concrete techniques according to practical requirements.The foundation reinforcement of dormitory complexes of an independent college in Sun Yat-sen University was taken as an example to discuss the working principle,mechanism of pile penetration as well as the ways to calculate designed parameters. The main construction procedures plus with three different combinations of anchor jacked pile and platform of pressure pile were introduced in details. Monitoring observations show that foundation settlement ratio decreases in the process of foundation reinforcement and it tends to be zero after completion of pile penetration.The techniques used in the present case may be a reference for similar projects.

关 键 词：锚杆静压桩 夹墙梁 基础加固 沉降观测 

分 类 号：TU437.1[建筑科学—岩土工程]