探究喀斯特地貌预应力管桩锤击综合施工技术应用  

Research on the Application of Comprehensive Construction Technology of Prestressed Pipe Pile Hammering in Karst Landform

作　　者：向潘 张华居 裴佳奕 Xiang Pan;Zhang Huaju;Pei Jiayi

机构地区：[1]中国建筑第二工程局有限公司

出　　处：《城市建筑》2022年第S01期88-90,共3页Urbanism and Architecture

摘　　要：近年来,我国预应力混凝土管桩的发展尤其迅速,当前我国管桩在品种、生产和其他方面一直居世界前列,生产装备及材料也实现了国产化,相关技术越来越完善。预应力管桩成桩方式多种多样,但是在喀斯特斜岩地貌条件下预应力管桩的成桩率较低,当桩身遇到斜岩层时常常因桩尖咬合岩层能力不足造成桩身折断,无法满足承载力,从而形成废桩。The development of prestressed concrete pipe piles in China has been particularly rapid in recent years.At present,China’s pipe piles have been in the forefront of the world in terms of varieties and output.The production equipment and materials have also been domestically made,and the relevant supporting technologies have become more and more perfect.There are also various ways of forming prestressed pipe piles.However,the pile forming rate of prestressed pipe piles under Karst clinopyrite landform is low.When the pile body meets the inclined rock stratum,the pile body is often broken due to the lack of the ability of the pile tip to bite the rock stratum,and the pile body cannot meet the bearing capacity,thus forming a waste pile.

关 键 词：喀斯特 管桩 桩尖 

分 类 号：TU378[建筑科学—结构工程]