摘要
测试路基填料的渗透性是高铁路基试验的关键环节,但是针对此项试验,国内没有成熟的仪器和方法,并且做出的试验结果具有较大离散性。基于这种情况,研制出适用于路基填料渗透仪,解决了试样取出后对其造成扰动的风险,可使试样最大限度地遵循设计需要。本文主要分析了压实度、温度以及粗粒含量对路基填料渗透性的影响。
The permeability of subgrade filler is a key part of the high-speed railway subgrade test,but there are no mature instruments and methods in China for this test,and the test results are quite discrete.Based on this situation,a permeameter suitable for subgrade filler is developed,which solves the risk of disturbance after the specimen is removed,so that the specimen can comply with the design needs to the greatest extent.In this paper,the effects of compaction,temperature and coarse grain content on the permeability of subgrade filler are analyzed.
作者
刘其琛
Liu Qi-chen(Railway Third Survey and Design Institute Group(Tianjin)Testing Technology Co.,Ltd.,Tianjin 300143,China)
出处
《建筑与装饰》
2022年第22期115-117,共3页
Construction & Decoration
关键词
路基填料渗透仪
试验方法
渗透系数影响因素
subgrade filler permeameter
test methods
permeability coefficient influencing factors
