IMMERSION TEST RESEARCH ON NEGATIVE FRICTION RESISTANCE FOR SOIL DISPLACEMENT SCREW PILES IN SELF-WEIGHT COLLAPSIBLE LOESS FOUNDATION

CHEN Tianlei; XIE Sa; WU Jian

doi:10.13204/j.gyjz202006003

Volume 50 Issue 6

Aug. 2020

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CHEN Tianlei, XIE Sa, WU Jian. IMMERSION TEST RESEARCH ON NEGATIVE FRICTION RESISTANCE FOR SOIL DISPLACEMENT SCREW PILES IN SELF-WEIGHT COLLAPSIBLE LOESS FOUNDATION[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(6): 11-15. doi: 10.13204/j.gyjz202006003

Citation:

CHEN Tianlei, XIE Sa, WU Jian. IMMERSION TEST RESEARCH ON NEGATIVE FRICTION RESISTANCE FOR SOIL DISPLACEMENT SCREW PILES IN SELF-WEIGHT COLLAPSIBLE LOESS FOUNDATION[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(6): 11-15. doi: 10.13204/j.gyjz202006003

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IMMERSION TEST RESEARCH ON NEGATIVE FRICTION RESISTANCE FOR SOIL DISPLACEMENT SCREW PILES IN SELF-WEIGHT COLLAPSIBLE LOESS FOUNDATION

doi: 10.13204/j.gyjz202006003

1. Lanzhou Engineering & Research Institute of Nonferrous Metallurgy Co., Ltd., Lanzhou 730000, China;
2. Gansu Civil Engineering Research Institute Co., Ltd., Lanzhou 730020, China

Received Date: 2019-09-27
Publish Date: 2020-08-20

Abstract

Abstract

Soil displacement screw(SDS)piles have been widely used in engineering fields, but the theoretical basis of design for SDS piles in collopsible loess zones was still absent. In order to explore the mechanical properties under immersion states, a full-scale immersion test of mechanical properties for SDS piles was carried out. The negative friction characteristics of two-way SDS piles along pile shafts under immersion were obtained.
- SDS pile,
- collapsible loess area,
- negative frictional resistance,
- immersion test

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References(2)

References

王康. 双向螺旋挤土灌注桩(SDS桩)在湿陷性黄土地基中的应用[J]. 科技视界,2017(20):83-84.

陈天镭,牛梦实,谢飒. 自重湿陷性黄土地基中双向螺旋挤土灌注桩的"肥桩效应"及复合地基湿陷系数的变化规律[J].工业建筑,2020,50(6):6-10.

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