铁道标准设计2018，Vol.62Issue(4)：11-17,7.DOI:10.13238/j.issn.1004-2954.201704060007
长昆客运专线铁路路堑边坡监测数据预处理方法
Cutting Slop Monitoring Data Preprocessing Method of Changsha-Kunming Dedicated Passenger Railway Line
摘要
Abstract
The section of DK314+501 ~DK316+800 is a deep cutting slope in Karst Area, which is located between Changsha and Yuping on Changsha-Kunming dedicated passenger line. The main line passes through the undulate terrain with shallow layer clay of weak expansive property. The slope monitoring data obtained are of obvious jumping and mutation, and could hardly be used in slop deformation prediction and slope safety assessment. In order to improve slope monitoring data analysis and application, data preprocessing methods are studied systematically and the methods of interpolation, translation, elimination and smoothing are proposed. Finally, slope monitoring data fitting and displacement prediction are also carried out based on Changsha-Kunming dedicated passenger line. The smoothed and noise-reduced data series of equal time interval are fitted with high order polynomial function, which meets the requirement for short-term forecasting,but insufficient for medium or long term prediction,and the original fitting data should be updated in real-time. The research results could be applied in the automatic monitoring data preprocessing of cutting slop during railway engineering.关键词
客运专线铁路/路堑边坡/自动监测/预处理/等时距序列/平滑降噪Key words
Dedicated passenger railway/Cutting slop/Automatic monitoring/Preprocessing/Equal time interval series/Smoothing and noise reduction分类
交通工程引用本文复制引用
郭帅杰,宋绪国,隋孝民,庄仲欣,张磊..长昆客运专线铁路路堑边坡监测数据预处理方法[J].铁道标准设计,2018,62(4):11-17,7.基金项目
中国铁路设计集团科技研究开发计划项目(721553) （721553）
