摘要
依托两个深大基坑工程,统计分析监测曲线规律,得出了一些集约化监测点布设的简单结论:外围土体沉降监测点可于离基坑一定距离处加强布设,而外围土体水平位移监测点则需尽量于靠近基坑侧壁处加强布设;因竖向支护受力特点,可增大开挖范围及以下一定深度内的测点密度,减小底部区段测点密度;对于土体测斜与沉降、竖向支护测斜与内力,应于基坑中部的边桁架跨中、基坑阳角、悬臂非强撑等区段增大布设密度;对于水平支撑内力监测,应于角撑(特别是存在阳角的角撑)、跨中对顶撑等部位增大测点布设密度。
Based on two deep and large foundation excavation engineering,this paper statistically analyzes the curve of monitoring and draws a simple conclusion about the layout of some intensive monitoring points. The settlement point of the surrounding soil can be arranged at a certain distance from the foundation excavation,and the horizontal displacement point of the surrounding soil should be as close as possible to the sidewall of the foundation excavation. Due to the characteristics of the vertical support,the density of the measuring point within a certain depth and the following depth can be encrypted,and the density of the measuring point in the bottom section can be reduced. Soil inclination and settlement,vertical support inclination and internal force shall be arranged as far as possible in the middle truss span of the foundation excavation,the corner of the foundation excavation,the non-strength of the cantilever.The horizontal support internal force measuring point tends to be arranged on the gusset,especially the gusset with the positive angle,the mid-span to the top support and the like.
作者
黄晓程
余地华
邓昌福
黄心颖
张松波
HUANG Xiaocheng;YU Dihua;DENG Changfu;HUANG Xinying;ZHANG Songbo(Hubei Building Construction Technology Co.,Ltd.of CCTEB Group Co.,Ltd.,Wuhan,Hubei 430070,China;General Construction Company of CCTEB Group Co.,Ltd.,Wuhan,Hubei 430070,China)
出处
《施工技术》
CAS
2020年第1期41-44,共4页
Construction Technology
基金
中建三局科技研发课题:深基坑智能化监测技术研发应用(CSCEC3Z-2019-01)。
关键词
深基坑
施工安全
集约化
监测
测斜
沉降
内力
deep foundation excavation
construction safety
intensification
monitoring
inclinometer
settlement
internal force
作者简介
黄晓程,硕士研究生,工程师,E-mail:385202649@qq.com。
