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多年冻土区蕴藏着丰富的矿产资源,矿业开发已成为多年冻土区经济发展的主要产业之一,但是其开采过程将不可避免地受到冻土的影响,也造成多年冻土区生态环境恶化的影响.在西部大开发的进程中,能源需求量逐渐增加,而多年冻土区矿山露天开采量逐渐减少,开展多年冻土区矿山地下开采相关的研究工作显得尤为迫切.基于前人在非冻土区的相关研究成果,结合位于多年冻土区的江仓矿区气象资料,利用MATLAB软件编写入风井筒风温计算程序,并引入临界温度的概念研究入风井筒风温的变化规律,确定了影响因素,获得了矿井通风与多年冻土井筒围岩的对流换热边界条件中风流温度的拟合函数,其计算方法和结果为下一步采用数值模拟的方法研究矿井通风对多年冻土井筒围岩的热影响提供了参考依据.
Permafrost region is rich in mineral resources, mining development has become one of the major industries in the economic development of the permafrost region, but the mining process will inevitably be affected by the frozen soil, but also lead to deterioration of the ecological environment in permafrost regions In the course of developing the western region, the demand for energy is gradually increasing while the open-pit mined area of the permafrost region is gradually decreasing, so it is particularly urgent to carry out the research work related to underground mining in the permafrost region. Based on the related research results of permafrost regions and the meteorological data of Jiangcang mining area located in permafrost regions, the MATLAB software was used to calculate the wind temperature of wind tunnel and to introduce the concept of critical temperature. The influencing factors were obtained and the fitting function of the temperature of the convective heat transfer boundary conditions of mine ventilation and permafrost surrounding rock was obtained. The calculation method and the result are the next step to study the effect of mine ventilation on permafrost borehole The thermal influence of surrounding rock provides a reference.