[1] Li Jianhang, Li Xiaojuan, Gao Luchao, et al. Conversion factor analysis of self-balanced loading testof cast-in-situ piles based on analogue test method [J]. Journal of Southeast University (English Edition), 2019, 35 (2): 185-190. [doi:10.3969/j.issn.1003-7985.2019.02.007]

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Conversion factor analysis of self-balanced loading testof cast-in-situ piles based on analogue test method()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

35

Issue:

2019 2

Page:

185-190

Research Field:

Civil Engineering

Publishing date:

2019-06-30

Info

Title:

Conversion factor analysis of self-balanced loading testof cast-in-situ piles based on analogue test method

Author(s):

Li Jianhang¹;  2;  Li Xiaojuan³;  4;  Gao Luchao³;  4;  Dai Guoliang³;  4;  Wu Weiguo²

¹Jilin Transport Scientific Research Institute, Changchun 130011, China
²School of Transportation, Wuhan University of Technology, Wuhan 430063, China
³School of Civil Engineering, Southeast University, Nanjing 210096, China
⁴Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education, Southeast University, Nanjing 210096, China

Keywords:

cast-in-situ piles;  self-balanced method;  analogue test method;  Mohr-Coulomb strength theory;  conversion factor

PACS:

TU473.1

DOI:

10.3969/j.issn.1003-7985.2019.02.007

Abstract:

Based on the characteristics of pile-soil interaction and the Mohr-Coulomb strength theory, a new method of determining the side friction at a pile-soil interaction is proposed. Combined with the actual engineering cases, the effectiveness of the analogue test method is verified by comparing it with the traditional anchor pile method and self-balanced method. Taking the self-balanced test of the bridge pile foundation in the Songhua River as an example, the conversion factor of sandy soil and weathered mudstone are confirmed by the analogue test method. The results show that the conversion factor of sandy soil and weathered mudstone in the Songhua River area should consider the geological conditions and the construction technology, etc. The standard values are relatively conservative. It is suggested that the engineering application should be properly revised. The recommended range of the conversion factor of sandy soil in this area is 0.65 to 0.85, and that of weathered mudstone is 1.0.

References:

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Memo

Memo:

Biographies: Li Jianhang(1971—), male, senior engineer; Dai Guoliang(corresponding author), male, professor, daigl@seu.edu.cn.
Foundation items: The National Key Research and Development Program(No.2017YFC0703408), the National Natural Science Foundation of China(No.51478109, 51678145, 51878160).
Citation: Li Jianhang, Li Xiaojuan, Gao Luchao, et al. Conversion factor analysis of self-balanced loading test of cast-in-situ piles based on analogue test method[J].Journal of Southeast University(English Edition), 2019, 35(2):185-190.DOI:10.3969/j.issn.1003-7985.2019.02.007.

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