螺旋挤土桩竖向承载性能试验研究  

MODEL TEST ON VERTICAL BEARING CAPACITY OF THE SOIL DISPLACEMENT SCREW PILE

作　　者：李志毅[1,2] 刘钟[1,2] 赵琰飞[1,2] 贾玉栋[1,2] 

机构地区：[1]中国京冶工程技术有限公司,北京100088 [2]中冶集团建筑研究总院,北京100088

出　　处：《工业建筑》2009年第S1期785-787,共3页Industrial Construction

基　　金：国家财政部施工新技术研究与开发项目(财企【2006】376号)

摘　　要：螺旋挤土桩是一种新型挤土桩,为研究该桩型的成桩机理、承载变形特性,自主研制了一台小型多功能模拟钻机,该钻机可方便模拟多种桩型的施工工艺。根据试验方案,利用该钻机制作了螺旋挤土模型桩及旋挖模型桩,并通过室内竖向静载试验分析了螺旋挤土桩的成桩机理及承载变形特性。The soil displacement screw pile(SDSP) is a new type of soil displacement pile.To study the mechanism and the vertical bearing capacity of the pile,a small-sized multifunctional model drill rig,which can conveniently simulate various types of pile construction process,was developed.According to the experimental scheme,the SDS model piles and the bored model piles were produced by the model drill rig.The mechanism and the vertical bearing capacity of the SDSP were expounded through the analysis of the model piles' static compressive loading test results.

关 键 词：螺旋挤土桩 模型试验 多功能模拟钻机 成桩机理. 

分 类 号：TU473.1[建筑科学—结构工程]