粉土地区复杂环境下深基坑施工监测的数据分析研究  

Data Analysis and Research of Deep Foundation Pit Construction Monitoring in the Silt Area under a Complex Environment

作　　者：李勇 陈少伟[2] 

机构地区：[1]河南省第一建筑工程集团有限责任公司,郑州450002 [2]郑州大学土木工程学院,郑州450001

出　　处：《价值工程》2013年第22期108-110,共3页Value Engineering

摘　　要：深基坑开挖会引起周边环境的变形,变形过大会造成建构造物的功能丧失甚至破坏,尤其是对于位于繁华闹市区的深基坑,施工过程中的变形控制要求更加严格,难度更大,本文结合实际工程案例,对郑州地区某深基坑的施工监测进行归纳总结,通过分析监测数据与对应的工况,监测内容包含基坑周边建筑物沉降、基坑坡顶竖向位移、基坑坡顶水平位移、深层水位位移、锚索内力,研究复杂环境下粉土地区深基坑施工过程中的变形特性和变化规律,研究结论可为类似条件下工程施工和监测提供借鉴。Deformation of surrounding soils usually followed along with deep foundation pit excavation.If the deformation is over the allowable limit,loss of function and even damage of structures maybe occur.So the deformation controling in the construction process has a higher demand and difficulty for deep foundation pit in downtown.With a practical deep foundation pit project of Zhengzhou,construction monitoring data and the corresponding working condition is summarized and analyzed in the paper,including surrounding constructions settlement,horizontal and vertical displacement of the pit top,horizontal displacement of deep soil,and tension force of anchor cable.Deformation and its laws of deep foundation pit construction in the silt area under a complex environment are attained,and it provides some reference for project of similar environment.

关 键 词：粉土 复杂环境 基坑 监测 

分 类 号：TV551.4[水利工程—水利水电工程]