韩墩引黄灌区衬砌渠道损坏原因分析及对策

Damage Causes of Lined Canal in Handun Irrigation District\=of Water Transfer from Yellow River and Their Strategies

在渠道衬砌损坏情况调查分析的基础上，总结了衬砌渠道损坏的主要形式，并对每种损坏形式进行了原因分析，指出边坡陡、基土冻胀变形、基土渗透变形及渗透压力的作用是造成衬砌损坏的主要原因。针对损坏原因，从设计、施工和管理上找出了对策。此外，据韩墩总干衬砌渠道的损坏情况，肯定了在季节性冻土地区通过渠道衬砌实现基土保温的必要性。

On the basis of analyzing the investigated situation of canal lining damage, the main forms of lining damage are summarized. And the causes of every form of lining damage are also analyzed. It is pointed out that the steep sideslope, frozenheave deformation of foundation soil, seepage deformation of foundation soil and the action of seepage pressure are main causes of the lining damage. Aiming at these damage causes, some corresponding strategies are proposed from the aspects of design, construction and management. Besides, for the damage situation of the Handun general main canal, through canal lining to implement heat preservation of foundation soil in the seasonal frozen soil area, is necessary.