Field tests on pre-bored compaction lime-soil pile (down-hole dynamic compaction method) to improve serious collapsible loess

LIU Zhi-wei; SHEN Ru-tao

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Field tests on pre-bored compaction lime-soil pile (down-hole dynamic compaction method) to improve serious collapsible loess

更新时间：2026-06-25

- Field tests on pre-bored compaction lime-soil pile (down-hole dynamic compaction method) to improve serious collapsible loess
- Vol. 30, Issue S2, (2009)
- 作者机构：
  
  西北电力设计院,西安,710032
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU472
- Online First：21 June 2011，
  
  Published：2009
- 稿件说明：
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LIU Zhi-wei, SHEN Ru-tao. Field tests on pre-bored compaction lime-soil pile (down-hole dynamic compaction method) to improve serious collapsible loess[J]. 2009, 30(S2).
DOI：

LIU Zhi-wei, SHEN Ru-tao. Field tests on pre-bored compaction lime-soil pile (down-hole dynamic compaction method) to improve serious collapsible loess[J]. 2009, 30(S2). DOI：

摘要

挤密桩法用于处理湿陷性黄土地基，可有效地消除土的湿陷性和提高地基承载力。某拟建电厂工程针对强湿陷性黄土地基，采用钻孔挤密桩（DDC工法）复合地基的处理方法开展现场试验研究。通过采用载荷试验、标准贯入试验等原位测试方法，对桩间土、桩体及复合地基的承载性能、变形参数进行了评价和分析，重点进行了自然工况和浸水工况下的对比研究，对地基处理效果进行了综合评价

Abstract

The compaction method used to control the subsoil of collapsible loess can eliminate collapsibility and improve bearing capacity of loess effectively. For serious collapsible loess in a power plant to be constructed

pre-bored compaction lime-soil piles (down-hole dynamic compaction method) field test studies were carried out. After the construction of the test piles were finished

a lot of in-situ tests including plate loading test

standard penetration test

etc.

were used to evaluate the bearing capacity of the soil between piles

the piles and the composite foundation

and to test the deformation parameters. Especially

comparative research between natural status and soaked status of composite foundation as well as comprehensive evaluation of effects of ground treatment were carried out

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Related Author

ZHANG Lei

CHEN Jian-feng

TONG Zhen-mei

LIU Jun-xiu

FENG Shou-zhong

WANG Xiao-jun

WANG Wen-di

LI Ming

Related Institution

Department of Civil Engineering, Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology

Department of Geotechnical Engineering, Tongji University

Wuhan Guangyi Engineering Consultation Co., Ltd.

Ningbo Institute of Technology, Zhejiang University

School of Architecture Engineering, Ningbo University of Technology

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