上海交通大学学报

上海交通大学学报（自然版） ›› 2013, Vol. 47 ›› Issue (09): 1430-1434.

• 建筑科学 • 上一篇    下一篇

采用预应力高强度混凝土管桩法处理吹填土地基的加固效果

吴浩宁a，李科a，黄醒春a,b   

  1. （上海交通大学 a.土木工程系， 上海 200240； b.海洋水下工程科学研究院， 上海 200231）
     
  • 收稿日期:2012-03-15 出版日期:2013-09-28 发布日期:2013-09-28

Effect Evaluation of Prestressed High-intensity Concrete Piles Applied to Ground Treatment of Dredger Fill

WU Haoninga,LI Kea,HUANG Xingchuna,b
  

  1. (a.Department of Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China; b.Chinese Underwater Technology Institute, Shanghai Jiaotong University, Shanghai 200231, China)
  • Received:2012-03-15 Online:2013-09-28 Published:2013-09-28

摘要：

以杭州湾地区余姚市陶家路交通桥工程场地吹填土地基为对象，通过原址上的堆载静压试验分析吹填土地基的沉降变形特性，采用有限元数值模拟方法模拟吹填土地基在附加应力作用下的沉降变化特征，并评价采用预应力高强度混凝土（PHC）桩法处理沉降速率较高的吹填土地基的加固效果.结果表明，采用PHC桩法处理吹填土地基的加固效果显著.

 
 

关键词: 预应力高强度混凝土管桩, 吹填土, 地基, 沉降, 加固处理

Abstract:

Based on the dredger fill foundation of a project in Hangzhou Bay, the subsidence features of the foundation were obtained through site tests. The finite element modeling (FEM) numerical simulation method was used to simulate the settlement of the dredger fill foundation. The effect of prestressed highintensity concrete (PHC) piles applied to ground treatment of the dredger fill was evaluated reasonably. Evaluation results show that PHC piles applied to ground treatment of dredger fill can obtain a significant  reinforcement effect.

Key words: prestressed high-intensity concrete (PHC) piles, dredger fill, foundation, settlement, reinforcement

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