Subgrade settlement prediction method and subgrade settlement prediction system

Abstract

The invention provides a subgrade settlement prediction method and a subgrade settlement prediction system, and relates to the field of traffic building engineering. The method comprises the steps that a first analysis module analyzes and predicts a subgrade soil body under the action of traffic load to obtain an accumulated deformation value; a second analysis module analyzes and predicts subgrade soil body solidification settlement generated by excess pore water pressure dissipation to obtain a solidification settlement value; then a long-term settlement value calculation formula is utilized to calculate the accumulated deformation value and the solidification settlement value to obtain a long-term settlement value. Compared with a prediction method in the prior art, the subgrade settlement prediction method takes into account of the subgrade soil body solidification settlement generated by the excess pore water pressure dissipation, in combination with a finite element method and a test result, the problem is solved that the traffic load high vibration frequency is high and the calculation amount is big at the same time, moreover, the method is reasonable and feasible, the long-term settlement value of the subgrade soil body under the traffic load can be more accurately predicted, and a reference basis is provided for the aspects of design, construction, operation, maintenance and the like of traffic engineering.

Description

technical field [0001] The invention relates to the field of traffic construction engineering, in particular to a roadbed settlement prediction method and a roadbed settlement prediction system. Background technique [0002] Traffic engineering is divided into highway, subway and high-speed rail projects, and the traffic loads of the corresponding projects are road vehicle loads, subway and high-speed rail train loads. During the operation period, due to the traffic load, the subgrade will have long-term settlement, which will affect the safe operation of traffic and the normal use of structures along the line, and cause a series of adverse effects on the surrounding environment, such as noise pollution. Therefore, it is necessary to propose a long-term settlement based on traffic engineering. The prediction method can provide a reference for the design, construction, operation and maintenance of traffic engineering. [0003] At present, there are many methods to predict th...

AI Technical Summary

Problems solved by technology

At present, the commonly used prediction method is only to use the empirical method to predict the cumulative deformation of the foundation, so the accuracy is not high, the calculation results are affected by human beings, and the soil consolidation settlement is not considered, so the measured long-term settlement is quite different from the actual value.

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