【摘要】 本文介绍了在砂金矿开采中应用冻土热学的研究情况。以斯蒂芬公式为融化深度的解析形式，用野外观测资料确定系数Ｋ。在计算和观测结果的基础上预报融化深度并作出诺模图；提出超前剥离与轮流开采相结合的生产方法，探讨逐层剥离融化法最佳剥离时间选择的理论依据并作了实验验证。该生产方法取得了较好的经济效益。更多还原

【Abstract】 The state of the art of application of thermodynamics for frozen ground in diggingfrozen gold mine is reviewed． The coefficient K of Stephen formula for calculation of thaweddepth is determined with data observed in the field． Based on the results of calculation andobservation， the thawing depths are forecasted and the curves of thawed depth vs water con-tent at different months are made. The mode of production is presented as a combination ofstripping in advance and digging in turn. The theoretical basis to select the optimum strippingtime interval in layer－by－layer stripping method is discussed and tested actually. Much eco-nomic benefit has been made with this mode ofproduction.更多还原