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渠道防渗工程冻害的原因除冬季行水渠道主要因渠水结冰造成的,渠道防渗是我国目前应用广泛的节水工程技术,常用土料、水泥土、石料、混凝土、沥青混凝土和膜料等材料作为渠道防渗层,达到防止渠道渗漏的目的。在同一工程地质及水文地质条件下,当防渗渠道的防渗材料、断面形式及施工方法不同时,其冻害的程度及破坏特征也不相同。现分别简述我国普遍采用的防渗材料、渠道断面形式、施工方法、工程冻害的特征如下。
Causes of frost damage of canal seepage control project In addition to the winter flood passage caused by icing water, canal seepage prevention is a widely used water-saving engineering technology in our country. Commonly used soil, cement, stone, concrete, asphalt concrete and membrane Materials and other materials as a channel impermeable layer, to prevent the purpose of channel leakage. Under the same engineering geology and hydrogeological conditions, when the anti-seepage materials, cross-section forms and construction methods of the anti-seepage channels are different, the degree of damage and the damage characteristics of the anti-seepage channels are also different. Are briefly outlined in our commonly used impermeable material, channel cross-section form, construction methods, engineering characteristics of frost damage are as follows.