一、研究大基础下地基压缩层深度的意义近年来随着我国城市及工业的发展,高层民用住宅,办公楼及高大的工业构筑物日益增多,与上部结构相适应的大型筏式基础、箱形基础、大体积的块体基础以及烟囱水塔等构筑物的大型独立基础相应地增加,这类基础都有面积大、刚性强、埋置深的特点,其地基压缩层的深度与基础面积的关系 I. The significance of research on the depth of compressive depth of foundations under large foundations In recent years, with the development of cities and industries in China, high-rise residential buildings, office buildings and tall industrial structures have been increasing, and large-scale raft foundations and boxes that are compatible with superstructures have been developed. Large-scale independent foundations of structures such as foundations, large-volume block foundations, and chimney water towers are correspondingly increased. These types of foundations are characterized by large area, high rigidity, and deep embedment, and the relationship between the depth of the compression layer of the foundation and the area of ​​the foundation.