High-speed railway subgrade settlement prediction system based on GEP

Abstract

The invention discloses a high-speed railway subgrade settlement prediction system based on GEP. Firstly, the filling soil mass of a high-speed railway has different engineering properties due to different soil foundations, and a subgrade settlement prediction problem is researched by selecting typical road section data; secondly, according to the principle of gene expression programming, a high-speed railway subgrade settlement predication program based on the gene expression programming is programmed by using C++; and then, detection data of railway subgrade settlement are used as training data to be imported into the high-speed railway subgrade settlement predication program based on the gene expression programming, and a railway subgrade settlement predication function model based on the gene expression programming is obtained through program operation. Settlement prediction is carried out on a certain high-sped railway subgrade monitoring point by using the model and a GM(1,1) grey prediction function model, a prediction result is obtained, and the prediction accuracy of the two models is comprehensively analyzed, so that excellent prediction ability of the models is verified.

Description

technical field [0001] The invention relates to a prediction system, in particular to a GEP-based high-speed railway roadbed settlement prediction system. Background technique [0002] The construction of high-speed railway is a symbol of modern transportation infrastructure, a symbol of a country's economic prosperity, and an inevitable product of a country's economic development to a certain stage. In the mid-1980s, in order to meet the needs of national economic development, my country decided to put transportation and energy at the top of economic construction, thus creating a new situation for the development of high-speed railways in China. In recent years, the country is making every effort to increase the intensity of railway construction. So far, my country's railway speed has been increased seven times in a large area. In 2008, my country's first ballastless railway - Beijing-Tianjin Intercity High-speed Railway was put into use, marking the my country is officiall...

AI Technical Summary

Problems solved by technology

[0016] Based on the research status of high-speed railway subgrade settlement and GEP at home and abroad, it is known that the existing subgrade settlement prediction and analysis models have shortcomings, and the gene expression programming method shows fast speed and high prediction accuracy in the prediction of lack of prior knowledge. Advantage

Images