宁波出入段线深基坑开挖引起的地面沉降估算

Estimation on land subsidence due to deep foundation excavation on Ningbo discrepancy section line

以宁波地区某地铁深基坑为研究对象,通过对监测数据进行拟合,发现墙后的地面沉降曲线呈明显的正态函数分布,并得到其分布函数曲线表达式,提出一种方便实用的基坑开挖引起墙后地面沉降的估算方法,为今后研究宁波深厚淤泥软土地区深基坑工程地面沉降特性以及类似工程提供了一定指导。

Taking the deep subway foundation in Ningbo area as the research target,through simulating monitoring data,it finds out that ground subsidence curve shows normal distribution function,and obtains its expression formula,and proposes a simple and brief ground subsidence estimation method owing to foundation excavation.Thus,it has provided guidance for studying future deep foundation engineering ground subsidence feature in Ningbo deep sullage soft soil area and other similar engineering.