铁路道砟材质选型分析与建议  

Analysis and Proposal to Railway Ballast Material Selection

作　　者：井国庆[1] 谢家乐 段姝琪 郭云龙 JING Guoqing;XIE Jiae;DUAN Shuqi;GUO Yunong(School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China;Baotou Railway Vocational&Technical College,Baotou 014060,China;School of Civil Engineering,Dalian Jiaotong University,Dalian 116021,China;Civil Engineering and Geoscience,Delft University of Technology,Delft 2628CN,Netherlands)

机构地区：[1]北京交通大学土木建筑工程学院,北京100044 [2]包头铁道职业技术学院,包头014060 [3]大连交通大学土木工程学院,大连116021 [4]代尔夫特理工大学土木学院,荷兰代尔夫特2628CN

出　　处：《铁道标准设计》2024年第1期37-43,共7页Railway Standard Design

基　　金：国家自然科学基金项目(52027813)。

摘　　要：我国铁路覆盖范围广,沿线所处地质环境复杂、气候多变,铁路运维面临巨大挑战。有砟道床作为铁路重要组成部分,其养护维修一直以来倍受关注,然而,岩石材料具有多样性和分布不均衡性,且我国道砟材质标准及选型较为单一,并未考虑地质及气候环境等因素,给铁路建设及运维带来一系列问题。针对此,总结世界各国道砟选型方式及方法,对比复杂环境道砟材质选型标准,归纳新型道砟材料,并且解释了标准中用于道砟性能量化的指标及其试验方法。对比各国所道砟材质及其配套的选型标准,得到以下主要结论:(1)针对我国现有道砟规范问题,可以考虑根据铁路沿线地质和气候等因素选择道砟材质;(2)目前仍没有方法可以快速、准确并且不破坏道床的方式来得到道床堆积密度;(3)为实现双碳目标,在有条件的新建或改建线路上可考虑选用建筑固废、工业固废等新型道砟材料。Chinas railway covers a broad area,the geological environment and climate along the line are complex and variable,the operation and maintenance of railway are facing tremendous challenges.As an integral part of railway,the maintenance of ballast bed has always attracted considerable attention,nevertheless,the variety and uneven distribution of rock materials,as well as the single ballast material standard and selection in China,which dont take into consideration factors such as geological conditions and climatic environment,bring a host of issues to railway construction and operation and maintenance.To deal with this problem,this paper summarizes railway ballast selection methods and methodology around the world,compares the ballast material selection criteria for complex environments,summarizes novel ballast materials,and explains the indicators and test approaches used to quantify ballast performance in the standards.Comparing the ballast materials and their matching selection standards in various countries,the main conclusions of this paper are as follows:(1)For the existing ballast specification problems in China,the ballast materials can be considered to be selected according to the geological and climatic factors along the railway line;(2)There is still no method to accurately and rapidly measure the density of ballast bed without damaging it.(3)To achieve the goal of double considered on new or modified lines where.

关 键 词：铁路道砟 母岩 地质条件 气候条件 有砟道床 道砟规范 

分 类 号：U213.772[交通运输工程—道路与铁道工程]