地铁工程基坑周边建筑监测数据分析及应对措施

Monitoring Data Analysis and Taking Countermeasures on the Buildings around Foundation Pit in Construction of the Metro

基坑开挖过程中,监测数据能够直观准确的反映基坑周边建筑物的变形,通过分析数据来判断建筑的安全状态。分析监测数据,找出引起建筑物沉降原因,及时调整施工过程,减少基坑开挖过程对建筑物的影响。文章对科教城南站基坑开挖过程中,周边建筑物短期内出现较大沉降原因做了分析,并提出了风险控制措施。

During the excavation construction, deformation of structures nearby could be detected directly and accurately by the monitoring data, then the safety status of the structures could be estimated by analysing these data. After analysing these monitoring data, the reason for settlements of surrounding structures can be found and construction progress can be adjusted, thus the affection to structures by excavation construction can be reduced ideally. In this paper, based on the situation from construction of South Ke Jiao station excavation, analysis on the reasons for relatively large deformation of surrounding structures in a short period has been achieved, corresponding risk management measures has been proposed as well.