The Compaction Degree Detection And Graded Broken Stone Compaction Quality Control

The compaction degree is an important index of the roadbed and the road surface. Effective compaction can improve the bearing capacity of the soil, improve not permeability. The compaction work is the important link which the roadbed and the road surface structural material obtain the enough compactness. Effective compaction degree test method is to control the quality of compaction method.This paper firstly introduces the concept of the soil and the compaction degree. Then, as to the compaction degree detection technology, it introduces various traditional detection technology, and points out the deficiency. After this, it analyses the vibration compaction principle and the working principle of vibratory roller, probes into the "roller-soil" two-freedom mathematical model. With MATLAB software, the amplitude of vibration displacement and acceleration response can be figured out, this provides theoretical basis for compaction degree detection.Subsequently, it proposes surveying the compaction degree of the soil with the in-vehicle compaction degree detection technology, its advantage is to detect compaction degree continuously, and avoid excessive or insufficient compaction. This method including amplitude and harmonic method, using the two kinds of methods for compaction test, fitting the linear regression equation for compaction degree.Finally, it compares two different compaction process of graded broken stone, It also compares the compaction quality of different graded broken stone in the same compaction process.