摘要
合肥市轨道交通1号线试验段工程锦绣大道站基坑围护结构采用钻孔灌注桩、内支撑围护体系和预应力锚杆围护等多种综合支护方案。文章通过分析基坑的地质条件,布置了详细的监测方案,对其实行信息化施工;对土体深层水平位移、内支撑轴力、地下水位、地表沉降和冠梁竖向位移等项目进行了监测,获得了丰富的监测数据;通过对监测数据进行分析,得到各监测项目的变化规律,并能将险情及时反馈给相关单位,以便及时解决可能出现的险情,保证基坑施工的安全。
The comprehensive support scheme with bored pile,interior support and pre-stressed anchor is applied to constructing the foundation pit support structure of Jinxiu subway station,the pilot station in Hefei Rail Transit Line No.1.In this paper,based on the analysis of the geological conditions of this foundation pit,the monitoring scheme is designed and the informationized construction is adopted.Abundant monitoring data about soil horizontal displacement,inner strut axial forces,groundwater level,surface subsidence and top beam vertical displacement are obtained.Based on the analysis of the monitoring data,the variation laws of each monitoring object are summarized,and the warning information is fed back to the relevant construction company in time.Thus the potential danger can be avoided by taking technical measures in time,ensuring the safety of the foundation pit.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2011年第7期1031-1034,1049,共5页
Journal of Hefei University of Technology：Natural Science
基金
国家自然科学基金资助项目(40972194
40802079)
关键词
深基坑
基坑设计
监测
deep foundation pit
foundation pit design
monitoring
