近几年来,在一些烟囱基础设计中成功地采用了M壳基础,节约了大量混凝土和钢材。M壳是一种比较好的烟囱基础型式。1969年包钢某工程有两个75米烟囱,原基础设计全是平板式的,其中一个已施工,另一个烟囱基础原准备改为M壳基础。经分析后,认为M壳的优点是适用于软土地基;缺 In recent years, the M-shell foundation has been successfully used in some chimney foundation designs, saving a lot of concrete and steel. M shell is a relatively good type of chimney. In 1969, Baotou Steel had two 75-meter chimneys for a certain project. The original foundation design was flat, one of which had been constructed, and the other was originally intended to be replaced by the M-shell foundation. After analysis, it is considered that the advantages of M shells are applicable to soft soils;