Experimental research on squeezed scallop piles mixed expanding admixture as retaining and protecting for foundation excavation

LI Qi-min; TANG Ye-qing; HE Man-chao

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Experimental research on squeezed scallop piles mixed expanding admixture as retaining and protecting for foundation excavation

更新时间：2026-06-25

- Experimental research on squeezed scallop piles mixed expanding admixture as retaining and protecting for foundation excavation
- Vol. 29, Issue 11, (2008)
- 作者机构：
  
  1. 中国地质大学（北京）,北京,100083
  2. 北京交通大学,北京,100044
  3. 中国矿业大学（北京）,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU473
- Online First：07 August 2013，
  
  Published：2008
- 稿件说明：
移动端阅览
LI Qi-min, TANG Ye-qing, HE Man-chao. Experimental research on squeezed scallop piles mixed expanding admixture as retaining and protecting for foundation excavation[J]. 2008, 29(11).
DOI：

LI Qi-min, TANG Ye-qing, HE Man-chao. Experimental research on squeezed scallop piles mixed expanding admixture as retaining and protecting for foundation excavation[J]. 2008, 29(11). DOI：

摘要

挤扩支护桩是一种先进的新型支护桩。通过掺入膨胀剂的钢筋混凝土扇形挤扩支护桩的试验研究，分析了其工作特性以及桩周土体挤密效应等，探讨了该桩在支护高度、桩身内力分配、内力计算等方面的规律。与普通混凝土扇形挤扩支护桩相比较，掺入膨胀剂的扇形挤扩支护桩弯矩最大值可减少20 %～30 %，桩顶位移平均减小33.5 %，在正常使用极限状态下地面荷载提高13 %。掺入膨胀剂的挤扩支护桩克服了普通挤扩支护桩混凝土收缩变形的缺点，有效地加固了桩周土体。

Abstract

As a new type of advanced pile of retaining and protecting for foundation excavation

the squeezed scallop pile mixed expanding admixture is studied experimentally. The intention of this paper is to survey the compaction efficiency against soil around pile

the mechanism

the retaining height

the inner stress distribution and calculation of squeezed scallop pile mixed expanding admixture as retaining and protecting for foundation excavation. Compared with common reinforced concrete retaining piles

the major characteristics of squeezed scallop pile mixed expanding admixture contain: (1) The maximum bending moment is decreased 20 % ? 30 %; (2) The total displacement in top can be reduced 33.5 % on average; and (3) The ground limit load is increased 13 % under regular service conditions. Against the contraction distortion of common reinforced concrete piles

the squeezed scallop pile mixed expanding admixture as retaining and protecting can strengthen the soil around piles effectively.

关键词

Keywords

references

Views

826

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Evaluation of earth pressure at active side for anisotropic sand

Study of improvement of secondary consolidation settlement calculation method

Mechanical mechanism and calculation method of bit expanded anchor rods

Research on calculation metheods of earth pressure on muti-arch tunnel for highway

Researches on pull-out capacity calculating method of rock bolt foundation

Related Author

ZHANG Jian-min

SONG Fei

FENG Hao-jie

ZHU Jun-gao

FENG Zhi-gang

YANG Chang-ya

YANG Xiao-yang

ZENG Qing-yi

Related Institution

State Key Laboratory of Hydroscience and Engineering, Tsinghua University

School of Highway, Chang’an University

Geotechnical Research Institute, Hohai University

Guangxi Electric Power Industry Investigation Design and Research Institute

Shenzhen Hydraulic and Civil Engineering Company Ltd.

AI问答

⁰