深水硬基岩斜拉桥基础锁扣钢管桩施工技术

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英文篇名：Construction Techniques for Locked Steel-Tube Piles of the Foundation in Deep-Water Hard Bedrock for Cable-Stayed Bridges 作者：李恒 英文作者：LI Heng;The 19th Bureau Group Co.Ltd of China Railway; 关键词：斜拉桥 ; 深水基础 ; 锁扣钢管桩围堰 ; 有限元分析 英文关键词：cable-stayed bridge;;deep-water foundation;;locked steel-tube pile cofferdam;;finite element analysis 中文刊名：GFJT 英文刊名：Traffic Engineering and Technology for National Defence 机构：中铁十九局集团有限公司; 出版日期：2019-03-20 出版单位：国防交通工程与技术 年：2019 期：v.17;No.104 语种：中文; 页：GFJT201902014 页数：6 CN：02 ISSN：13-1333/U 分类号：52-56+81

摘要

以深水硬基岩地质条件下某大桥的11#主墩深水基础施工为工程背景,从地质情况、施工条件和工程成本等方面进行方案比选,选用锁扣钢管桩围堰施工。介绍了围堰的结构,研究其施工技术,对承台和墩身施工等整个施工过程中的锁扣钢管桩进行结构受力分析,保证了施工安全。对类似工程具有一定的借鉴意义。
        With the construction of the deep-water foundation for Main Pier 11# of a certain bridge in the geological conditions of deep-water hard bedrock as the engineering background,various construction schemes for the project are compared and chosen according to the specific geological conditions,construction conditions and engineering costs,upon the basis of which the scheme of locked steel-tube pile cofferdam is finally chosen for the construction of the project. Introduced in the present paper is the structure of the cofferdam, with the construction technique for it studied, and the structural analysis of the locked steel-tube pile during the whole construction process of the cap and the pier body analyzed.With the above-mentioned techniques adopted for the project, the safe construction of it is ensured.The paper may serve as certain useful reference for other similar projects.

引文

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