摘要
Abstract
To ensure the safety of the excavation process of the foundation pit,this article takes the ultra wide foundation pit as an example background,first carries out the design of its support measures,and combines the on-site monitoring results of the horizontal deformation of the foundation pit to grasp its change law through deformation prediction.The analysis results show that due to the large excavation width and area of the foundation pit,combined with engineering practice,the support measures 1 on the south and east sides are designed as"support piles+2 anchor rods",and the support measures2 on the north and west sides are designed as"support piles+1 anchor rod",with4 internal supports set on the inner side of the foundation pit.At the same time,according to the monitoring results,the range of horizontal deformation of the foundation pit is12.44～19.75 mm,with an average value of 15.97 mm.According to the prediction,the predicted range of horizontal de-formation of the foundation pit is17.99～20.83 mm,which is within the design deformation control value(i.e.30 mm).In addition,the horizontal deformation of the foundation pit tends to stabilize,fully demonstrating that the design of foundation pit support measures is reasona-ble and effective,laying a theoretical foundation for its subsequent construction.关键词
基坑/支护措施/监测数据分析/变形预测Key words
Excavation pit/Support measures/Monitoring data analysis/Deformation prediction分类
天文与地球科学
