武汉市宝通寺地铁站基坑工程监测与分析

介绍了武汉市轨道交通二号线一期工程第20标段宝通寺地铁车站基坑工程的支护设计和监测方案，并对监测结果中基坑周围岩土体侧向水平位移和内支撑轴力进行了初步分析。监测结果表明：土层和岩层在基坑开挖过程中的侧向水平变形程度相差较大，且不同状态的土层侧向水平变形程度亦不相同；由于土层相对于岩层侧向变形较大，其支护时所表现出来的内支撑轴力亦比较大。因此，对于不同地层，进行基坑支护方案选择时应根据其不同变形性质进行合理的优化设计，对土层和岩层可采取不同的支护形式，以到达既安全又经济的目的。

The Monitoring and Analysis of the Baotong Temple Subway Station Foundation Pit Engineering in Wuhan

This paper has introduced the foundation pit supporting design and monitoring program of the wuhan railtransit line 2 at a phase of the project section of 20, the Baotong temple subway station, And also made a preliminary analysis for the monitoring results of geotechnical engineering foundation pit lateral horizontal displacement and strut axial forces. The result indicated： soil layer and rock layer in the process of foundation pit excavation in the lateral deformation degree level is large, and the state of the different soil lateral level have different deformation degree. Due to the relative to the rock soil lateral deformation is bigger, the supporting shown by the inside of the strut axial forces are also relatively large. So, for different formation, carries on the soil foundation pit support scheme should choose reasonable design for optimization purpose according to their different deformation properties, soil and rock strata can take on different support form to get to both safe and economic purposes.