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Study on the Application of the Gray Model of Complex Stratum in Lingnan Area to Predict the Settlement of High-fill

In the complex geology of Lingnan area, the foundation settlement process formed by the high filling project is complicated, there are many factors and the factors influence each other. In the high filler project, although the settlement of the high-fill is monitored in real time and some monitoring data are obtained, it is difficult to determine the change trend of the amount of settlement in a certain period and in general. In this paper, when applying the gray prediction model, the subsiding process of the foundation engineering of the high-fill foundation is regarded as a gray system. Before establishing the gray prediction model, the data sequence of the measured settlement amount measured in the previous period is processed and generated as the original sequence, so that the gray prediction model is established after the orderly data sequence is established to systematically analyze the settlement amount of the foundation of the high-fill, and then gives the trend of the high-fill settlement change after a certain period of time; therefore, it can be used to solve the problem of predicting the amount of settlement.