THE STUDY OF REAL-TIME DETECTION OF ROADBED COMPACTED DENSITY BASED ON ANALYING THE VIBRATION SIGNALS

摘要

The detection and control of roadbed compaction density duringrnthe roadbed construction is a most important subject that needsrnsolving urgently. The traditional method on the construction is arnwaste of labors, time and money, which causing the problem ofrndelaying the project time limit, wasting time and energy source,rnand much worse causing the duplicated construction once thernover-compacted looses the roadbed. Here a detector of roadbedrncompacted density real-time which is based on the vibrationrnsignals of compactor, can well solve these kinds of problems. Itrncan let us realize real-time detection of roadbed compacted densityrnduring the construction, as a result it saves the time, labors andrnenergy at the same time. After being tested by experiment, thisrninstrument can provide the correct judgement according torndifferent geology conditions of different roadbed compactedrndensities.