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地层温度受到了环境气温在季节性冻土中的逐层传递,同时,污水管道中的污水也向冻土中传热,其作用离管道越远影响越小。12,1,2月份的温度曲线基本有些规律;而在3月中旬曲线交错,各层间温差小;4月份地面温度回升,深层点的地温变化就更平缓了。同时也可以看出,实测地温的变化规律具有代表性,当地层深在-0.5m 以下时地温变化平缓。也就是说污水管道通常所敷设地层的温度变化是平缓的,并有一定规律性,这给我们研究问题带来了方便。将观测点管顶处地温与对照点同深度处地温画在同一坐标上,得到如图3的曲线。
The temperature of the formation is transmitted layer by layer in the seasonal frozen soil. At the same time, the sewage in the sewage pipeline also transfers heat to the frozen soil. The effect of the farther away from the pipeline is smaller. The temperature curves of January, February and February are basically regular; in the middle of March, the curves are staggered and the temperature difference between the layers is small; in April, the temperature of the ground rises, and the temperature of the deeper ground temperature changes more smoothly. At the same time, it can also be seen that the measured ground temperature changes are representative, and the ground temperature changes slowly when the depth of the ground layer is below -0.5m. In other words, the temperature change of the sewer pipeline is usually smooth and has certain regularity, which brings convenience to our research problems. The ground temperature at the top of the observation point tube and the temperature at the same depth at the control point are plotted on the same coordinates, and the curve shown in Figure 3 is obtained.