A Local Cooling Technology for Rock Tunnel Heading Face

In the article, for the cooling problem of high temperature in the heading face of rock tunnel after the completion of mixing shaft in Pingdingshan No.10 Coal Mine, it analyzed the production environment and heat source factors in the heading face of rock tunnel, put forward local cooling and refrigerating ideas for the heading face of rock tunnel during the period of mine construction, calculated the local refrigerating chilling reguirement, selected local cooling and refrigerating units, and introduced installation process and requires of cooling and refrigerating units.