Bearing Capacity Analysis and Experiment Research on Post-grouting Bored Piles(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2015年02期
- Page:
- 58-64
- Research Field:
- Publishing date:
Info
- Title:
- Bearing Capacity Analysis and Experiment Research on Post-grouting Bored Piles
- Author(s):
- DENG Xiang-hui; ZHANG Yong-jie; FANG Hai-bo
- School of Highway, Chang’an University
- Keywords:
- post-grouting bored pile; ordinary bored pile; theoretical analysis; field test; bearing capacity
- PACS:
- -
- DOI:
- -
- Abstract:
- Aimed at the bearing capacity of post-grouting bored pile determined uneasily, the improved calculation formula was proposed based on the field test result. The parallel comparison method was adopted in some project. Vertical bearing capacities of the ordinary bored pile and postgrouting bored pile were tested, and the bearing capacity of a single pile was analyzed theoretically. On this basis, the improved calculation formula of post-grouting bored single pile was proposed. The results show that the bearing capacity and subsidence for the single pile can be improved efficiently using the post-grouting techniques for bored piles in the similar condition. At the same time, the errors of computation and field test result are small when vertical bearing capacity of postgrouting bored pile is calculated by the improved formula, so the proposed formula is reasonable. The determined calculation formula of bearing capacity of post-grouting bored pile can provide the experience for the similar projects.
Last Update: 2015-03-31