DX挤扩装置特性及其在公路桥涵桩基中的应用  

Characteristics of DX piles and their application to the pile foundation

作　　者：金凤温[1] 

机构地区：[1]河北省交通规划设计院,河北石家庄050021

出　　处：《内蒙古公路与运输》2009年第6期38-41,共4页Highways & Transportation in Inner Mongolia

摘　　要：对DX挤扩灌注桩的挤扩装置特性进行介绍,并根据DX挤扩灌注桩在河北公路桥梁桩基中的应用效果及其优缺点进行归纳总结。同时,通过对三座公路桥梁的试桩结果得出:DX桩的单桩竖向抗压极限承载力明显高于同直径、同长度的直孔灌注桩,并可大幅度提高桩基承载力。This article describes the features of DX piles and summarized the advantages and disadvantages of these piles from the application of them to the pile foundation of highway bridges in Hebei Province.At the same time,it has been proven from the test results of piles for three highway bridges that the ultimate bearing capacity of vertical compression for single pile is significantly higher than that of the same diameter and length of straight bored piles,and increases greatly the capacity of pile.

关 键 词：公路桥梁 DX挤扩灌注桩 应用 

分 类 号：U443.15[建筑科学—桥梁与隧道工程]