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随着社会发展和人口的不断增加,城市建设用地日趋紧张,为节约用地,高层建筑及超高层建筑越来越多,其基础一般都属于深基坑,且周围建筑物距离基坑较近,为保证基础施工期间的安全与周围建筑物的安全使用,基坑应根据实际情况采用支护技术,且不同基坑支护形式对基坑开挖的影响也不同,本文以华北南部地区某医院综合楼深基坑支护设计及土方开挖为例,介绍了深基坑的土方开挖及支护技术,为以后该地区类似基坑的施工提供了借鉴经验.
With the increasing social development and population, the land for urban construction is becoming increasingly tense. To save land, more and more high-rise buildings and super-tall buildings are built, and their foundations generally belong to the deep foundation pit, and the surrounding buildings are relatively close to the foundation pit. In order to ensure the safety during the foundation construction and the safe use of surrounding buildings, the foundation pit should adopt the supporting technology according to the actual conditions, and the influence of different foundation pit support forms on excavation is also different. In this paper, a hospital in the southern part of North China Taking the design of deep foundation pit support and earthwork excavation as an example, the earth excavation and support technology of deep foundation pit are introduced, which provides reference for the construction of similar foundation pit in the future.