土工基础

›› 2011, Vol. 25 ›› Issue (5): 72-75.

• 工程实录 • 上一篇    下一篇

PHC管桩填充物配合比试验研究

 王晓红， 刘争宏， 于永堂   

  1. (西安建筑科技大学，西安 710055)
  • 收稿日期:2010-11-11 出版日期:2011-10-20 发布日期:2011-11-23
  • 作者简介:王晓红，女，1986年生，硕士，主要从事桩基测试技术的研究工作。

Mix Design of Filling Materials in PHC Pipe Piles Used for Deformation Measurements   

WANG  Xiao  hong, LIU  Zheng  hong, YU  Yong  tang   

  1. (Xi'an University of Architecture and Technology
    Xi'an University of Architecture and Technology, Xi'an 710055, China)
  • Received:2010-11-11 Online:2011-10-20 Published:2011-11-23

摘要： 介绍了将滑动测微计用于PHC管桩桩身内力测试时，管桩内填充物的选择及配合比设计，通过对填充物的无侧限抗压强度、变形模量及泊松比等参数进行试验研究，给出了应用于桩身内力测试的填充物的适宜配比，分析了影响填充物力学性能的因素，为类似工程配比试验提供参考。

关键词: PHC管桩, 水泥&mdash, 膨润土, 填充物, 配合比, 内力测试

Abstract: This paper discusses the mix design of filling materials in Pre\|stressed High\|strength Concrete (PHC) pipe piles that will be subjected to a static load test in which deformations will be measured using a sliding micrometer. The materials and their gradation selection requirements are optimized through evaluation of the mechanical properties of the filling materials. Properties evaluated include unconfined compressive strength, deformation moduli and Poison's ratio. Factors that influence the performance of the filling materials during the static load test are also presented.