Research on a Rapid Evaluation Method Based on Relative Settlement Measurement

Abstract When the bearing capacity of the transition section of the subgrade is insufficient, reinforcement is needed to ensure the normal operation of the railway. The traditional method of judging whether the bearing capacity of the subgrade meets the requirements is time-consuming, laborious and inefficient. Therefore, a rapid assessment method of whether the transition section needs reinforcement is proposed based on settlement measurement. Through the comparison between the exploration test of the subgrade bearing capacity of the transition section and the settlement value of the subgrade, the correlation between the bearing capacity and the bearing capacity of the subgrade is established. According to the characteristics of the transition section of the subgrade, the relative settlement method, the track bed height method and the roadbed reverse slope method are proposed, and the standards for the determination of reinforcement are also obtained. This method is faster than the traditional method and saves investigation funds.