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轨交车站是极为重要的市政工程,关乎城市居民的民生问题和城市运营问题。做好轨交车站基坑的变形控制和监测是提高轨交车站施工质量的关键环节。基坑变形的影响因素很复杂,尤其是大型深基坑变形因素更为复杂。以上海某轨交车站为工程背景,分析了混凝土等级和混凝土早期强度对基坑变形的影响规律。
Rail transit station is extremely important municipal works, relating to the livelihood of urban residents and urban operation issues. Deformation control and monitoring of foundation pit of railway station is a key step to improve the construction quality of railway station. The influencing factors of foundation pit deformation are complex, especially the deformation factors of large deep foundation pit are more complicated. Based on the engineering background of a rail transit station in Shanghai, the influence of concrete grade and concrete early strength on the deformation of foundation pit was analyzed.