To solve the leakage problem of concrete cracking and seepage in the freezing shaft lining of deep topsoil. it is proposed to use hybrid fibers and micro expansion high-performance concrete. Based on the normal concrete mix ratio of the frozen shaft lining. the orthogonal test method was used to investigate the effect of the water-to-binder ratio. https://cosmeticssquadets.shop/product-category/heat-guns/