上海交通大学学报

上海交通大学学报（自然版） ›› 2012, Vol. 46 ›› Issue (01): 69-72.

• 建筑科学 • 上一篇    下一篇

深松软地基条件下工程桩事故分析及对策

梁志荣，李忠诚，李成巍   

  1. (上海申元岩土工程有限公司， 上海 200040)
  • 收稿日期:2011-06-20 出版日期:2012-01-30 发布日期:2012-01-30

An Engineering Accident Analysis and Treatment of Prefabricated Engineering Piles in Shanghai

 LIANG  Zhi-Rong, LI  Zhong-Cheng, LI  Cheng-Wei   

  1. (Shen-Yuan Geotechnical Engineering Co. Ltd., Shanghai 200040, China)
  • Received:2011-06-20 Online:2012-01-30 Published:2012-01-30

摘要： 分析了上海地区深松软地基条件下，某工程预应力高强度混凝土（PHC）管桩和预制方桩施工的事故情况，对场地的地质条件、预制桩工程特性、沉桩工艺及基坑开挖等影响因素进行了系统分析，剖析了其事故产生的原因，并提出了针对性的加固处理技术措施.

关键词: 深松软地基, 预应力高强度混凝土管桩, 预制方桩, 灌芯

Abstract: Combined with a practical engineering example, the causes of deviation and fracture on prestressed highintensity concrete (PHC) pipes and prefabricated square piles were analyzed on condition of deep and soft soil foundation in Shanghai. Some causes, such as geologic site condition, engineering characteristics of prefabricated pile, construction technology and excavation, were discussed. In addition, the measures that core grouted and anchor static pressure pile to remedy the kind of accidents were also presented from the aspects of design and construction.

Key words:  deep and soft soil foundation, prestressed high-intensity concrete (PHC) pipe, prefabricated square pile, core grouted

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