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寒区土体河渠的研究对寒区土渠灌溉系统具有重要的影响,也对国家农业经济的发展具有重大的意义。通过对俄罗斯萨哈共和国典型寒区土渠进行监测与分析,对Khorobut、Khalaany、Dadaar和Shestakovskaya四个灌溉体系的观测研究结果分别进行论述与分析。在本文中主要论述Khalaany流域灌溉系统的监测与分析成果,指出:(1)Khalaany灌溉系统区域内的地下冰可以分为冰水泥、纹理形成冰和冰沉积物,主要的低温过程是冻胀、热融、热蚀和冻缩开裂;(2)针对Khalaany灌溉系统中土壤物理性质,进行季节性解冻深度的周期动态观测,发现冻融循环引会发塑性指数变化,从而影响边坡稳定性;(3)Aryy灌区地质条件与Khalaany灌溉系统相同,实验站包括地面管网、三个灌溉渠和一个排灌渠。
The research of soil canal in cold area has important influence on the irrigation system of soil canal in cold area and also has great significance to the development of national agricultural economy. Through the monitoring and analysis of the canyon in the typical cold region in the Sakha Republic of Russia, the results of observational studies on the four irrigation systems in Khorobut, Khalaany, Dadaar and Shestakovskaya are respectively discussed and analyzed. In this paper, the author mainly discusses the monitoring and analysis of the irrigation system in the Khalaany basin. It points out that: (1) The ice in the Khalaany irrigation system can be divided into ice cement and ice and ice sediments. The main low temperature process is frost heaving, (2) According to the periodic dynamic observation of the depth of seasonal thaw in the Khalaany irrigation system, it is found that the change of plasticity index will affect the slope stability, (3) The geological conditions in Aryy Irrigation District are the same as those in Khalaany Irrigation System. The experimental stations include surface pipe network, three irrigation channels and one irrigation and drainage canal.