Performance Parameters Of The Parts Of Shandong Province Subgrade Soil Analysis

Subgrade filling of this article is to the Shandong province two typical road with the parameter study, through to the Jinan clayey soil and alluvial plain of the Yellow River silt indoor test, measured the maximum dry density and optimum moisture content, on the basis of liquid plastic limit test, liquid limit, plastic limit and plasticity index value, then the two soil compressive strength test, to see the size of the strength of the vegetable soil, at the same time, through the triaxial compression test, determination of the Angle of internal friction and cohesion of value. Then determination in water and does not dip water condition the CBR value, determined by uniaxial consolidation and the void ratio, compression in order to assess its performance. After get element on performance index of the soil, clay to Jinan three to2%,5%，8%lime dose modification experiment was carried out， and also with the same parallel test, see the modification of related performance changes. In alluvial plain of the Yellow River silt, also use the same test principle, after on the analysis of the element performance index of the soil, and then mixed with2%,4%,6%， three modified cement dosage, look at the performance of the modified changes. To draw in different compaction machinery, different compaction times conditions to produce different degree of compaction, impact on subgrade various performance indicators at the same time, in this article, the different types of soil, different admixture and additive dosage, and then to different degree of compaction under the condition of performance index analysis, compaction by93%,96%,100%, three standards, the relevant test data to sort and repeated after validation, the related curves, tables, conclusions, etc.