量化铁路镇流器的相对强度

IF 0.3 Q4 ENGINEERING, GEOLOGICAL Geotechnical Engineering Pub Date : 2005-04-01 DOI:10.1680/GENG.2005.158.2.107
W. Lim, G. McDowell, A. Collop
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引用次数: 14

摘要

在强度方面,能够很容易地区分质量差和质量好的镇流器是很重要的。对于一系列均匀级配的颗粒材料,压实到相同的相对密度,将有两个重要因素影响集料的强度:颗粒强度和空隙率(这将是颗粒形状的函数)。除了箱形试验和单颗粒破碎试验外,还进行了大型磨损计试验,并定义了一个新的参数,称为相对强度指数,以综合颗粒强度和空隙比的影响。结果表明,相对强度指标在大型电表试验和箱形试验中都与镇流器的劣化量有很好的相关性,因此有望作为一种比较镇流器类型的合适方法,而无需在每个镇流器上施加数千次循环载荷。
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Quantifying the relative strengths of railway ballasts
It is important to be able to distinguish easily between ballasts of poor quality and good quality in terms of strength. For a range of uniformly graded granular materials compacted to the same relative density, there will be two important factors influencing the strength of the aggregate: particle strength and voids ratio (which will be a function of particle shape). Large oedometer tests have been performed in addition to box tests and single particle crushing tests and a new parameter, called the relative strength index, is defined to incorporate the effects of both particle strength and voids ratio. It is found that the relative strength index correlates well with the amount of degradation of ballast in both the large oedometer tests and the box tests, and therefore shows promise as a suitable method for comparing ballast types without having to apply thousands of cycles of load on each ballast.
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来源期刊
Geotechnical Engineering
Geotechnical Engineering ENGINEERING, GEOLOGICAL-
CiteScore
0.50
自引率
0.00%
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0
期刊介绍: The objectives of the Association shall be the promotion of co-operation among geotechnical societies in SE Asia; and the assistance to member societies who have limited number of members. Now there is only one combined web titled: AGSSEA-SEAGS. SEAGS & AGSSEA encourage the submission of scholarly and practice-oriented articles to its journal. The journal is published quarterly. Both sponsors of the journal, the Southeast Asian Geotechnical Society and the Association of Geotechnical Societies in Southeast Asia, promote the ideals and goals of the International Society of Soil Mechanics and Geotechhnical Engineering in fostering communications, developing insights and enabling the advancement of the geotechnical engineering discipline.
期刊最新文献
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