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空腔壳基础是一种新型壳基础,它由一个正锥壳与一个倒锥壳组合而成,它完全区别于“M”壳基础。可用作烟囱、水塔、电视塔等高耸独立式构筑物的基础。空腔壳基础能充分利用地基土的反推力作用,具有结构合理,受力性能良好,经济效果显著等优点。它用于烟囱基础比过去一直沿用的圆板(或环板)基础平均节约钢材和混凝土各50％左右,同“M”壳基础相比可节约钢材50％左右,节约混凝土20～30％左右。
The cavity shell foundation is a new type of shell foundation. It consists of a combination of a positive conical shell and a reverse conical shell. It is completely different from the “M” shell foundation. It can be used as the basis for tall, independent structures such as chimneys, water towers, and television towers. The cavity shell foundation can make full use of the reverse-thrust action of the foundation soil, and has the advantages of reasonable structure, good stress performance, significant economic effect, and the like. It is used in chimney foundations to save an average of 50% of steel and concrete compared to the previous use of circular (or ring) foundations. Compared with “M” shell foundations, it can save about 50% of steel and save about 20 to 30% of concrete. .