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为了研究国道214线沿线多年冻土地温情况,为多年冻土地温预测提供依据,根据国道214线的地温监测资料,首先对国道214线进行综合地温分区,采用非线性拟合算法对各地温分区进行曲线拟合,得到7个地温分区的地温曲线拟合模型。根据此预测模型对国道214线地温分布进行了预测计算,计算结果表明:理论地温剖面曲线与该地区实测地温剖面曲线形态相似;地温随深度变化趋势基本一致,稳定地温理论值与实测值相同,稳定地温深度也基本一致;用该地温预测分段函数模型进行的地温断面曲线预测,总体趋势预测良好。
In order to study the geothermal conditions of permafrost along the national highway 214 and provide the basis for predicting the geotemperature of the permafrost, according to the ground temperature monitoring data of the national highway 214, firstly, the geothermal district is divided into the national highway 214 and the non- Curve fitting was performed to obtain the geothermal curve fitting model of seven geothermal zones. According to the prediction model, the geothermal distribution of National Highway 214 is calculated. The calculation results show that the theoretical geothermic profile curve is similar to the measured geothermal profile curve in this region. The trend of the geothermal temperature is basically the same with the depth. The steady temperature theoretical value is the same as the measured value, And the stable temperature is basically the same. Prediction of the geothermal profile curve by the geothermal prediction piecewise function model shows good overall trend.