Experimental study of relationship between effective pile length and pile strength for rammed soil cement pile composite foundation

TONG Jian-xing; YAN Ming-li; SUN Xun-hai; YANG Xin-hui; WANG Ming-shan

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Experimental study of relationship between effective pile length and pile strength for rammed soil cement pile composite foundation

更新时间：2026-06-25

- Experimental study of relationship between effective pile length and pile strength for rammed soil cement pile composite foundation
- Vol. 33, Issue S1, (2012)
- 作者机构：
  
  1. 中国建筑科学研究院地基基础研究所,北京,100013
  2. 中国建筑科学研究院建筑安全与环境国家重点实验室,北京,100013
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU443
- Online First：21 September 2012，
  
  Published：2012
- 稿件说明：
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TONG Jian-xing, YAN Ming-li, SUN Xun-hai, et al. Experimental study of relationship between effective pile length and pile strength for rammed soil cement pile composite foundation[J]. 2012, 33(S1).
DOI：

TONG Jian-xing, YAN Ming-li, SUN Xun-hai, et al. Experimental study of relationship between effective pile length and pile strength for rammed soil cement pile composite foundation[J]. 2012, 33(S1). DOI：

摘要

通过室内模型试验，实测得到水泥土材料的破坏形式、夯实水泥土桩复合地基桩土荷载分担比、桩土应力比、桩间土深层变形等承载及变形性状。给出了文中试验条件下，给定桩身强度的夯实水泥土桩复合地基的有效桩长或有效复合土层厚度，认为设计夯实水泥土桩复合地基时，应考虑桩身强度对承载力的影响桩体，设计应以桩身强度控制，使由桩身强度确定的单桩承载力大于（或等于）由桩周土和桩端土的抗力所提供的单桩承载力。

Abstract

The failure mode of soil-cement material

the bearing and deformation characteristics such as the pile-soil load share ratio

the pile-soil stress ratio

and the deformation in the deep soil between the piles of rammed soil cement pile composite foundation are measured by the indoor model tests. The effective pile length or the effective composite soil thickness of rammed soil-cement pile composite foundation with the given pile strength is provided in the test conditions in this paper. The effect of the pile strength on its bearing capacity should be considered for the design of the rammed soil-cement pile composite foundation. The pile design should be based on the control of the pile body strength and the bearing capacity of single pile determined by the pile strength should be greater than that provided by the soil surrounding the pile and pile end soil.

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