|Table of Contents|

Analysis of Vertical Bearing Capacity of Pile Foundation Based on American Standard(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2021年06期
Page:
25-32
Research Field:
软土地基加固与基础工程
Publishing date:

Info

Title:
Analysis of Vertical Bearing Capacity of Pile Foundation Based on American Standard
Author(s):
HUO Zhi-liang1; 2;  SUN Li-qiang1; LANG Rui-qing3;  YU Chang-yi4;  NIU Zeng-xiang5
(1. School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2. Tianjin Municipal Engineering Design and Research Institute Co., Ltd., Tianjin 300051, China; 3. Key Laboratory of Soft Soil Engineering Characteristics and Engineering Environment of Tianjin, Tianjin Chengjian University, Tianjin 300384, China;
Keywords:
American standard;  pile foundation;  static cone penetration test;  ultimate bearing capacity
PACS:
TU312
DOI:
10.19815/j.jace.2021.08046
Abstract:
In order to further improve the quality of China's overseas projects, the bearing capacity calculation methods of AASHTO LRFD method and LCPC method based on static cone penetration test were expounded. The similarities and differences of pile foundation bearing capacity design methods between Chinese standards and American standards were compared and analyzed. According to the calculation example and comparative analysis of an overseas project, the results of different pile foundation vertical bearing capacity calculation methods were obtained. The results show that the pile foundation bearing capacity calculated by AASHTO LRFD method and LCPC method based on static cone penetration test are close. Due to the small standard value of pile friction and the limitation of allowable value of pile end bearing capacity in sandy soil, the calculated pile side friction and end resistance are small based on Specifications for Design of Foundation of Highway Bridges and Culverts. Through the analysis, it is also obtained that the in-situ test results such as groundwater buried depth and standard penetration test have great influences on the calculation results by using AASHTO LRFD method. The overseas project geotechnical investigation based on American standard focuses on the in-situ test results, and attention should be paid to the standardization of its operation in the field work.

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Last Update: 2021-11-01