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近年来,高层建筑工程中地基处理通常采用CFG桩复合地基技术。由于电梯井、集水坑的几何特性及对该部位褥垫层作用理解存在分歧,工程实践中褥垫层铺设方法要么过于简单而不正确,要么又过于繁琐而不合理。为保证地基处理的施工质量,做到技术上既可靠,经济上又合理,有必要对褥垫层的铺设质量进行控制。
In recent years, the foundation treatment of high-rise buildings usually adopts CFG pile composite foundation technology. Due to the differences in the geometric characteristics of the shaft and the sump and their understanding of the role of the cushion, the laying of the cushion in the engineering practice is either too simple or incorrect or too cumbersome and unreasonable. In order to ensure the construction quality of the foundation treatment, it is technically reliable and economically reasonable, and it is necessary to control the laying quality of the cushion.