The Test Study Of The Damage Preventing And Curing Measures Of Liaoxi Aeolian Soil Road Foundation

Through the test of liquid-water content, density, specific gravity , granulometric distribution and so on, studied the physical property of the Aeolian soil systematically, the analysis of the physical parameter indicated that: the fine-grain is the main ingredient in the aeolian soil, its structure is compact relatively, after immerses it does not have the obvious collapsibility. Aeolian soil road foundation occurs freezing damage easily.According to the regional hydrological geology and climate characteristic in Liaoning province, surveyed the Aeolian soil road foundation freezing damage phenomena in western region of Liaoning province in the last few years. discovered existent road freezing damage phenomena of frost heave, thaw collapse, froth emit mud, crack and so on. analytical study show that earthiness, temperature, water are the primary cause which brought these freezing damage. According to these freezing damage,the paper based on the cause of the generation of freezing damage, adopted roller compaction and ramming to change the soil structure ,cut off the capillary water, inorganic binding material incubation and other measures to prevent and cure. and proceed the road foundation Aeolian soil freezing test, roller compaction ram test, Aeolian sand replacement test, cement cinder stable soil layer and lime-flyash stabilization soil layer experimental study. According to analysis on the test data acquired the law of them.The paper follow the principle of the convenience of taking material and economic , bring forward four measures of roller compaction and ramming , Aeolian sand exchange fill , cement cinder stable soil layer and lime-flyash stabile soil layer to prevent and cure the road freezing damage.The four measures of protection and cure have both merit and shortcoming. according to the law acquired by test room study of the four protection and cure measures. found the application method of each protection and cure measure, According to the concrete geology aquatic environment of each sector of road bring forward the corresponding measures of protection and cure.