
2016年8月下第45卷第16期
DOI:10.7672/sgjs2016160043
施工技术
CONSTRUCTION TECHNOLOGY
某房屋抬升纠偏施工期结构形态监测系统的
实现与应用研究
注学清”乔胜利,马炯,胡德俊’,许哲东,姚建平?,郭增强
(1.中国矿业大学(北京)力学与建筑工程学院,北京100083; 2.中国铁道科学研究院铁道建筑研究所,北京100081)
【摘要】房屋抬升纠偏在纠偏工程中比较少见,施工工艺也比较复杂,并且各个施工流程控制要求也比较严格,因此施工过程中怎样保证房屋结构的形态线性与安全和及时掌握房屋的结构状态对整个施工过程的安全来说具有重要意义,如何在抬升过程中保证楼房沉降部分稳步恢复是整个工程成功的关键。采用2套自动化监测系统和传
统监测技术手段,并将其所测得的结果进行了对比分析,研究不同监测手段所测数据的精确性与可靠性,【关键词]抬升;纠偏;沉降;自动化;监测系统
【中图分类号]TU472.99;TU746.3
【文献标识码]A
[文章编号]1002-8498(2016)16-0043-05
Research on the Realization and Application of Structural Monitoring SystemforOneBuildingLifting-rectificationUnderConstruction
Wang Xueqing',Qiao Shengli",Ma Jiong,Hu Dejun',Xu Zhedong',
YaoJianping’,GuoZengqiang
( 1. School of Mechanics & Civil Engineering, China Unizersity of Mining & Technology, Bejing100083, China;
2. Railuay Construction Institute of China Academy of Railway Sciences, Beijing100081, China)
Abstract: The building lifting rectification is not common to see in the rectification, as well as complicated in the construction, and the construction process is controlled strictly , so the way of which to evaluate linear form and its safety , and to master configuration state of the building in time are of great signification for the whole process of construction, as well as to ensure the settlement of building lifting steady is the key to success.Two sets of automatic monitoring system is used and so do the traditional monitoring technology means. Besides, the measured results were compared and analyzed, in addition,
the accuracy and reliability of the data monitored by different ways were also researched. Key words: lifting ;rectification; settlement; automation; monitoring system
0引言
建筑物由于受到人为和自然等因素的影响而使其产生倾斜,这种情况在实际工程中是比较常见的工程事故。当其倾斜率超出相关规范要求,就需要对基进行纠偏处理,如果沉降量过大,并且受到结构特点的限制,通过迫降法1]对其进行纠偏行不通时,就需要采用顶升法[2]或者综合纠偏方法[34] 对其进行纠偏处理。
顶升的方法一般有2种,即膨胀材料顶升[56]和设备顶升(即干斤顶顶升)【98,并且顶升的最大高*国家自然科学基金委员会与神华集团有限责任公司联合资助重点项目(U1361210
【作者简介]汪学清,博士,副教授,E-mail:wxqease@163.com[收稿日期]2016-02-10
度不宜超过800mm[9]。
43
该工程选用的预升法为于斤顶顶升法,采用锥
杆静压桩技术,并同时采用堆载迫降辅助的综合处理方法。在顶升施工过程中要时刻关注建筑的结构形态,尤其在顶升过程中,顶升量作为顶升的依据,更要保证其最新性以及精确性。因此,监测系统的建立对整个工程来说是必不可少的,是整个纠
偏工程成功的关键。 1工程概况
某楼房地上6层为建筑住宅,地下1层为地下室。相邻楼房的基础通过两者中间的地下车库筏板连接为1个整体。楼房及地下车库的基础形式分别为筏板基础和梁板式筏板基础。该楼房建筑和