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摘要：南水北调中线总干渠（河北段）混凝土衬砌防冻胀技术研究，发现了适合于浅层季节冻土区的冻结冻胀规律，建立了以工程地点水文地质条件和邻近气象台站气温资料为计算依据的冻深、冻胀量计算经验公式及三种保温层厚度计算方法，依据不同渠道混凝土衬砌结