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在北方地区,渠道的工程地质问题主要是渠基土的冻胀破坏,合理判定土的冻胀性是选择渠道设计方案的主要依据。
In the northern area, the engineering geological problems of the channel are mainly the frost heaving destruction of canal foundation soil. Judging the frost heave of soil reasonably is the main basis for choosing the channel design scheme.