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本设计采用车载式压实度检测仪来测量土壤的压实程度,这是一种基于连续压实控制(CCC-Continuous Compaction Control)的系统模型,通过分析“振动压路机--土壤”的动力学模型,得出振动压路机振动加速度与土壤刚度变化的关系,进而通过加速度来反映土壤的压实程度可对压实度进行连续检测,避免压实不足或过分压实等现象。通过理论分析及试验结果证明,此压实度监测仪的设计是合理的,可以初步满足道路施工中路基压实度监测的要求。
This design uses a vehicle-mounted compaction tester to measure the degree of compaction of the soil, a system model based on CCC (Continuous Compaction Control). By analyzing the “Vibratory Roller - Soil” Dynamic model, the relationship between the vibration acceleration of the vibratory roller and the change of soil stiffness is obtained, and then the degree of compaction of the soil can be reflected by the acceleration to continuously detect the degree of compaction so as to avoid under-compaction or over-compaction. Through theoretical analysis and test results, it is proved that the design of this compaction degree monitor is reasonable and can initially meet the requirements of subgrade compaction monitoring in road construction.