土工基础

›› 2015, Vol. 29 ›› Issue (3): 16-19.

• 工程实录 • 上一篇    下一篇

某工程塑料排水板回带率原因分析与对策实施

袁  程   

  1. （广州市第三市政工程有限公司，广州 510060）
  • 收稿日期:2014-04-04 出版日期:2015-06-20 发布日期:2015-06-26
  • 作者简介:袁 程（1982-），男，工程师，主要研究方向为市政工程施工技术管理。

Anchoring Failure in the Prefabricated Vertical Drain Installations

YUAN Cheng   

  1. （Guangzhou No.3 Municipal Engineering Group Co. Ltd.，Guangzhou, 510060）
  • Received:2014-04-04 Online:2015-06-20 Published:2015-06-26

摘要： 塑料排水板法是常用且有效的软基处理方法之一，但在实际施工过程中经常出现回带现象，影响施工质量，若在附近补打则增加了成本。以珠海十字门六标段项目实践为例，对排水板回带现象进行调查分析，并提出了有效的应对措施，减少了后期排水板打设回带率，可为以后类似的工程提供借鉴。

关键词: 塑料排水板, 回带率, 桩靴, 软基处理

Abstract: The Prefabricated Vertical Drain (PVD) is a conventional and effective ground improvement method for thick soft cohesive soils, but the anchoring failures are frequently encountered during the PVD installations. These anchoring failures affect the quality of the construction and will increase the cost if several PVDs are inserted adjacent to the failed one. This paper presents a case history of PVD installations in Zhuhai Cross Gate No. 6 bid package project. The anchoring failure during the installation was analyzed and improving method was proposed and the improved procedure effectively reduced the anchoring failure rate.

Key words: Prefabricated Vertical Drains, Anchoring Failure Ratio, Anchoring Shoes, Soft Soil Improvement