摘要
针对上海某地下室出现的结构开裂、渗水及流沙现象,结合设计施工资料对上浮原因进行了分析,分析结果表明,上浮的主要原因是后浇带封闭过早、抗拔桩失效和防水板刚度偏弱。根据本工程特点,制定了锚杆静压钢管桩补强的加固方案。另外,采用注浆和增加叠合板的措施,对原结构和土体进行了修复,实施效果良好,为今后类似项目提供了借鉴参考。
Due to floating, structure cracking, leakage and soil erosion occurred in a basement of Shanghai. This article gives the main reasons of the floating by analysis of the design and construction files, such as post-pouring belt closed untimely, failure of the uplift piles and weakness of the baseplate. According to the feature of this project, we made a repair plan using anchor jacked piles. Besides, by the the other measures of grouting and thickening the baseplate, the original structure and the soil under the basement were fiexed. The successful application supplies some reference to similar projects in future.
作者
刘冬
LIU Dong(Shanghai Geotechnical Investigations&Design Institute Co.,Ltd.,Shanghai 200093,China)
出处
《建筑结构》
CSCD
北大核心
2022年第S02期2051-2054,共4页
Building Structure
关键词
地下室
上浮
锚杆静压钢管桩
注浆
底板加厚
floating
basement
anchor jacked piles
grouting
thickening the baseplate
作者简介
第一作者:刘冬,硕士,高级工程师,注册土木工程师(岩土),主要从事基础加固设计工作,Email:audrey121@126.com。
