粗颗粒盐渍土化学改良试验研究

Study on Chemical Improved Experiment of Coarse Particle Saline Soil

粗颗粒盐渍土在我国新疆地区分布广泛,由于其特殊的溶陷、盐胀等特性,在工程建设中需进行处理。选取新疆准东地区某电厂厂区内粗颗粒盐渍土样,掺合一定配比的水泥、消石灰、粉煤灰对其进行化学改良试验,结果表明:掺合一定比例的水泥、粉煤灰、消石灰均可对粗颗粒盐渍土溶陷性进行消除,且三种掺合料混合配比改良效果优于单一掺合料改良。

The coarse particle saline soil widely distributes in Xinjiang region in China. Due to its special thaw collapsibility,salt expansion and other characteristics,which needs to be processed in the engineering construction. Selecting the coarse particle saline soils in a power plant in Zhundong region in Xinjiang,a chemical modification experiment by blending a certain proportion of cement,lime hydrate and fly ash is done. The results show that blending a certain proportion of cement,fly ash and lime hydrate all can eliminate the thaw collapsibility of the coarse particle saline soil. And the modification effect by the mixture ratio with the three kinds of admixture is better than that by single admixture.