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山西榆次市通过现浇砼板衬砌、20cm空气层保温板衬砌、10cm空气保温板衬砌、20cm砂砾料垫层上铺预制砼板、塑料薄膜加预制砼板、预制砼板、5cm厚聚苯乙烯泡沫板加预制砼板衬砌、复合式浆砌石、空梁板式等14种衬砌方案试验比较结果,而以加厚(8cm)聚苯乙烯泡沫板加砼板在土壤含水量高的渠床上防冻害效果最好,无冻损破坏痕
Shanxi Yuci City through the cast-in-place concrete lining, 20cm air layer insulation board lining, 10cm air insulation board lining, 20cm sand gravel cushion prefabricated concrete panels, plastic film plus precast concrete panels, precast concrete panels, 5cm thick polystyrene 14 kinds of lining plan test such as prefabricated concrete slab lining, composite mortar stone slab and hollow slab slab were compared and compared. In addition, thickening (8cm) polystyrene foam board plus concrete slab was used in the drainage bed with high soil moisture content Frost damage the best, no damage to freeze damage marks