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为防止渠道冻胀破坏,从实践中总结提出了“适应冻胀变形”的新观点.现在已有许多依靠适应冻胀变形的土渠、砾石护面渠和干砌卵石渠防止了渠道冻胀破坏.新疆有埋藏塑料薄膜防渗土渠6——7km没有发生冻胀破环,长期安全运行.又如新疆阿克苏地区、甘肃酒泉地区都有砾石护面渠和干砌石渠,成功地靠“适变”防止了冻胀破坏.这些渠道多采用埋藏塑料薄膜防渗,冻胀量有所减小.发生冻胀时.护面可随之上抬,消融时又可靠
In order to prevent the channel from freezing and destroying, a new viewpoint of “adapting to frost heave and deformation” has been put forward in practice.Nowadays, many channels, gravel retaining canal and dry-laid pebble channel which adapt to frost heave and deformation have prevented the channel Frost heave destruction Xinjiang buried plastic film Impervious drains 6 - 7km did not freeze the destruction of the ring, long-term safe operation, such as Aksu in Xinjiang, Gansu Jiuquan have gravel retaining canal and dry stone canal, the success of To rely on “change ” to prevent frost heaving damage.These channels use more buried plastic film impermeable, frost heave volume is reduced.When the frost heave occurs, the surface can be raised, ablation and reliable