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随着我国城市化进程的不断加快,城市土地资源问题日益突出,人们越来越重视城市地下空间的利用,因此推动了基坑开挖深度的加大,促使了超深基坑工程的产生。这些超深基坑往往位于城市的中心位置,附近环境较为复杂,也有较高的保护要求,所以受到了学术界与工程界的重视。就砂性土地基超深基坑来说,下卧承压水可能会将上覆土层冲进基坑之中,导致基坑突涌破坏,对周边环境造成严重的影响,因此,一定要重视砂性土地基超深基坑支护技术的研究工作。
With the accelerating process of urbanization in our country, the problem of urban land resources has become increasingly prominent. People pay more and more attention to the utilization of urban underground space. Therefore, the deepening of excavation is promoted and the generation of ultra-deep foundation pit works is promoted. These ultra-deep foundation pit are often located in the center of the city, the surrounding environment is more complex, there are higher protection requirements, it has been the academic and engineering attention. In the case of ultra-deep foundation pit with sandy soil foundation, under-confined water may burst the overburden into the foundation pit, resulting in sudden surge of the foundation pit and serious impact on the surrounding environment, therefore, we must pay attention Study on Supporting Technology of Super Deep Foundation Pit in Sandy Soil.