首页 | 本学科首页   官方微博 | 高级检索  
     检索      

超深锚碇基坑围护结构施工关键技术
引用本文:袁兆轩.超深锚碇基坑围护结构施工关键技术[J].城市道桥与防洪,2023(4):179-182.
作者姓名:袁兆轩
作者单位:上海远方基础工程有限公司
摘    要:某大桥为双塔双跨悬索桥,主跨跨径达到1 688 m,边跨钢箱梁长548 m,其西锚碇采用厚度为1.5 m的地下连续墙作为锚碇基坑开挖的主要围护结构,地下连续墙深入中、微风化泥岩,基坑开挖深度达到22.2 m,采用水泥粉喷桩加固软土。基于该大桥锚碇基坑围护结构施工,探讨超深锚碇基坑围护结构施工关键技术,并给出部分施工建议。

关 键 词:锚碇基坑  地下连续墙  水泥粉喷桩  关键技术
收稿时间:2022/6/16 0:00:00
修稿时间:2022/6/16 0:00:00

Key Technologies for Construction of Ultra-deep Anchorage Foundation Pit Enclosure Structure
Yuan Zhaoxuan.Key Technologies for Construction of Ultra-deep Anchorage Foundation Pit Enclosure Structure[J].Urban Roads Bridges & Flood Control,2023(4):179-182.
Authors:Yuan Zhaoxuan
Abstract:A bridge is a double-pylon double-span suspension bridge. Its main span is 1688 m long, and its steel box girder of side span is 548 m long. Its west anchorage adopts an underground diaphragm wall with a thickness of 1.5 m as the main enclosure structure for the excavation of the anchorage foundation pit. The underground diaphragm wall is embedded into the medium and slightly weathered mudstones. The excavation depth of the foundation pit reaches 22.2 m, and the soft soil is reinforced by the cement powder sprayed piles. Based on the construction of the anchorage foundation pit enclosure structure for the bridge, the key technologies for the construction of the ultra-deep anchorage foundation pit enclosure structure are discussed, and some construction suggestions are given.
Keywords:anchorage foundation pit  underground diaphragm wall  cement powder injection pile  key technology
点击此处可从《城市道桥与防洪》浏览原始摘要信息
点击此处可从《城市道桥与防洪》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号