软土地区某多层房屋纠倾加固技术  

Rectification and Strengthening of a Multi-storey Houses on Soft Soil Area

作　　者：戴占彪 付素娟 李旭光[1] 李光宏[3] 

机构地区：[1]河北建研科技有限公司,河北石家庄050021 [2]河北省建筑科学研究院,河北石家庄050021 [3]河北工业大学土木工程学院,天津300401

出　　处：《施工技术》2014年第16期44-47,共4页Construction Technology

基　　金：河北省建设科学技术研究计划(2013-113)

摘　　要：综合上部结构、桩基础、地基土体3方面对云南某住宅楼的倾斜原因进行分析。根据下部土体及建筑结构形式,对建筑物采用锚杆静压桩止倾加固,采用截桩迫降的处理方法对该建筑物进行纠倾施工。工程实践表明,本工程截桩迫降法纠倾速度快、沉降稳定易控制且能保证整幢房屋均匀地回倾;在截桩结束封桩后,沉降能迅速稳定,工后沉降较小。This paper analyzes the reasons of a tilted residential building in Yunnan, through the upper structure, pile foundation and soil foundation. According to the lower part of the soil and structural form, anchor piles are used for the end of dumping and reinforced buildings, and the method of cut pile is used for rectification of the buildings. The project shows that the method of cut pile has the characteristics of fast rectification, stable and easy to control settlement and ensures the whole building uniformly dumping back. When the sealing of the cut piles is finished, building settlement can quickly stabilize, with small post-settlement.

关 键 词：混凝土结构 纠倾 锚杆静压桩 地基加固 

分 类 号：TU746.3[建筑科学—建筑技术科学]