张集矿副井永久井架基础保温前期研究

Preliminary research on the eternal derrick footing thermal insulation of the auxiliary shaft of Zhangji mine

研究了聚氨酯发泡保温效果并在张集矿副井施工首次采用,从保温效果来看,完全能满足施工要求,解决了井架基础因为冻胀融沉带来的不利因素,为今后解决类似工程问题提供参考。

This thesis studies the insulation effect of polyurethane foam and the first application in auxiliary shaft construction of Zhangji mine.From the insulation effect,it completely meets the construction requirements,solves unfavorable factors for the shaft foundation such as freezing and expanding,melting and submerging,which has provided reference for solving future similar project issues.