土工基础

›› 2018, Vol. 32 ›› Issue (3): 264-267.

• 工程实录 • 上一篇    下一篇

非疏浚岛礁围堰技术的应用与前景

胡 强1，李锦辉2，宋 磊2，张 洁3   

  1. （1.中国铁道科学研究院，北京 100081；2.哈尔滨工业大学(深圳)，广东深圳 518055；3.同济大学，上海 200092）
  • 收稿日期:2018-05-07 修回日期:2018-05-08 出版日期:2018-06-22 发布日期:2018-06-26
  • 作者简介:胡 强( 1978-),副研究员，研究方向为结构与岩土工程。
  • 基金资助:

    国家自然科学基金 (51679060)；上海市科学技术委员会科研计划项目（16DZ1200503）

Design and Development of Cellular Sheet Pile Cofferdams in Non-Dredged Reefs

HU Qiang1， LI Jinhui2， SONG Lei2， ZHANG Jie3   

  1. （1.China Academy of Railway Sciences,  Beijing China 100081;
    2.Harbin Institute of Technology, Shenzhen Graduate School, Shenzhen, China 518055;3.Tongji University,  Shanghai China 200092）
  • Received:2018-05-07 Revised:2018-05-08 Online:2018-06-22 Published:2018-06-26

摘要： 随着我国海洋事业的迅速发展，海洋基础设施建设将面临着水深、浪高、流急和地基软弱等不利的自然条件，而且随着我国对海洋生态环境保护的重视，工程界迫切需要既能克服不利自然条件，又能不污染海洋环境的施工技术。港珠澳大桥香港人工岛采用的非疏浚格形钢板桩围堰技术就是满足上述要求的新型结构形式，而且这种非疏浚格形钢板桩结构还能将城市建筑废料作为填料，不仅节约了大量的砂石资源，而且能够合理的利用城市建筑废料。我国目前格形钢板桩结构应用和理论研究还很少，主要是参考和借鉴国外规范和施工经验。通过算例分析得出目前格形钢板桩结构设计理论并不适用于非疏浚格形钢板桩结构，需要进一步的科学研究。

关键词: 非疏浚, 格形钢板桩, 围堰, 理论计算

Abstract: With the rapid development of offshore engineering, the construction of offshore infrastructure must meet the requirement of harsh conditions, such as, high marine water table, strong wave, fast flow and soft soils. With the increasing attention in protecting the marine environment and resources, it has a need to find a better construction technology to overcome the adverse conditions. The nondredge cellular sheet pile cofferdam is an excellent alternate to meet that requirements which was used in Hong Kong boundary crossing facilities reclamation work. The backfill material of the cofferdam is the construction waste fill rather than the conventional marine sand which means that it not only saves the cost of the engineering but also gives an effective method to treat the urban construction waste. The study of cellular sheet pile cofferdam is rare in China. It is often to refer the experience and criterion of foreign countries.In this study, it is concluded that the theory of the cellular sheet pile cofferdam is not fit to the design of nondredge cellular sheet pile cofferdam.

Key words: Non-dredged Soils, Cellular Sheet Pile, Cofferdams, Theoretical Analysis