成都理工大学学报（自然科学版）2017，Vol.44Issue(4)：409-416,8.DOI:10.3969/j.issn.1671-9727.2017.04.03
城市高架桥群桩基础沉降量计算评价
Research on settlement calculation and evaluation of pile foundation of urban viaduct
曾宪云 1李远富 2尹航 3李列平4
作者信息
- 1. 西南交通大学 经济管理学院,成都610031
- 2. 成都交通投资集团,成都610041
- 3. 西南交通大学 土木工程学院,成都610031
- 4. 高速铁路线路工程教育部重点实验室,成都610031
- 折叠
摘要
Abstract
This article discusses the calculation and evaluation method of the settlement of pile group foundation of urban viaduct,and provides theoretical basis for the safety evaluation of pile foundation settlement.Based on the influence factors of pile foundation settlement of deep soft soil stratum,current computing methods in engineering of settlement,such as equivalent footing method,equivalent sum of slice,elastic theory method and Flac 3D numerical simulation method,are separately used to calculate the settlement and to analyze the change regularity of stress and displacement fields to viaduct in specific engineering project and compared these research results with the measured data.The results show that it is better to use equivalent footing method and elastic theory method in the practice application.Though,equivalent sum of slice and numerical simulation method have a popular application,they usually yield larger results which affect the engineer project.This research provides a reliable foundation for the settlement evaluation of pile foundation of similar engineering geological conditions.It reveals that only the settlement value is calculated by at least three or more methods and the calculated settlement value less than allowable value,can it meet the safety requirements of construction.关键词
高架桥/群桩基础/深厚软土地基/沉降量/评价计算Key words
viaduct/pile foundation/deep soft soil foundation/settlement/evaluation and calculation分类
建筑与水利引用本文复制引用
曾宪云,李远富,尹航,李列平..城市高架桥群桩基础沉降量计算评价[J].成都理工大学学报（自然科学版）,2017,44(4):409-416,8.
