Research Of Treatment On Soda Residue Subgrade

The soda residue is the output white solid waste in the pure soda process which was produced by a soda factory that using the ammonia-soda method, is one of the industrial waste.At the present time , our country produces pure soda to adopt ammonia-soda method more currently, its yield takes up above 60% of pure soda total yield, the soda residue exhaust usually piles up mountain, a great deal of mountains filled with soda residue make the soil quality of surroundings be turn by salt of erosion, in the meantime,the soda residue dust proliferates to all round,so the city environment was destroyed terribly.also,the soda residue take up a great deal of land, not only destroy the ecosystem and the sight in the region.the development, construction and economy in this region were deeply blocked.Aim at this kind of circumstance, a great deal of research have already done at home and abroad.from the soda residue concrete of western countries to local soda residue using for bury downfold and fill sea to build ground;We can say that people's studying on how to make use of soda residue has already obtained a very big result.However, we haven't been research that how to make soda residue be road foundation and roadbed filler so far, so we can say that the research toward this aspect still stays around a blank stage.Because the original soda residue full of a great amount of water, possess of low bearing capacity, be provided with strong erosion. especially,it is sensitive to the libration load,its engineering function will sharply descends after the perturbation;So the disposal of soda residue roadbed is more difficult than the general Soft Subgrade. Currently,the section K1+304～K1+585 of the central highway in bin hai district in tian jin was covered with it,so we have to face it.this topic relies on the central highway project to carry out research on the soda residue deeply for the first time and combine an indoor and outdoor experiment tally up a suitable processing project,to provide some technique supports in the road foundation for the soda residue.