聚苯乙烯泡沫塑料板在渠道防冻胀中的应用

Application of Polystyrene Foam Plastic Slabs in Frost Heaving Prevention of Canal

冻害是影响渠道防渗工程寿命的主要因素 ,为防治冻害 ,常采用砂砾石料进行基土置换 ,但存在置换层较厚 ,夯填质量不易保证 ,在砂砾料紧缺地区 ,工程造价高等缺点 ;聚苯乙烯泡沫塑料板作为一种新型的保温防冻材料 ,具有厚度小 ,自重轻 ,防冻性能好等优点 。

There exists such defects as the displacement layer being more thick, the puddle backfill quality being un-easily ensured and the project cost being higher while sandy gravel material is used to displace the foundation soil in order to prevent the freezing damage. The polystyrene foam plastic slab, as a new type of heat insulating and frost preventing material, has such advantages as the thickness and dead weight being small, and the frost preventing performance being well, and has the higher value of application and popularization.