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十三陵抽水蓄能电站补水渠上段渠道断面设计,采用聚苯乙烯泡沫板作保温层,以防止基土冻胀。泡沫板厚度按理论计算法和经验估算法来确定是符合实际的。实践证明,聚苯乙烯泡沫板是良好的保温材料,防冻胀效果显著。尤其是在粘性土、毛细作用强、地下水位高的季节性冻土地区的圬工衬砌渠道和水工建筑物,采用泡沫板作保温层,能较好地解决冻胀问题,该材料有着广阔的应用前景。
Shisanling pumped storage hydropower station on the canal section of the cross-section design, the use of polystyrene foam insulation layer to prevent frost heaving. Foam board thickness by theoretical calculation and empirical estimation method to determine is realistic. Practice has proved that polystyrene foam board is a good insulation material, frost heaving effect is obvious. Especially in cohesive soil, strong capillary action, high groundwater level in the seasonal frozen soil lining the lining channels and hydraulic structures, the use of foam board insulation layer can better solve the problem of frost heave, the material has a vast The application prospects.