An assessment of how penetration curve adjustment affects the California bearing ratio (CBR)

IF 0.7 Q4 MECHANICS

Studia Geotechnica et Mechanica Pub Date : 2021-10-09 DOI:10.2478/sgem-2021-0017

Łukasz Bednarek

引用次数: 0

Abstract

Abstract With the rapidly developing road transport, there is a demand for new roads to be constructed and for the existing ones to be repaired or extended. The base of any road is its foundation, usually made of crushed or uncrushed aggregate. To be used for road foundation purposes, a material needs to meet many requirements, as imposed by relevant standards. One of the basic tests to assess the suitability of an aggregate is to determine its California bearing ratio (CBR). This paper presents the results of CBR tests for mixed aggregate with the grading of 0–31.5 and 0–63 mm. Detailed assessments were carried out for penetration curves, which in many cases need to be adjusted to meet industry standards. The adjustment of plunger penetration curves in aggregate samples causes CBR to increase compared to the original curves.

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渗透曲线调整如何影响加州承载比(CBR)的评估

摘要随着道路运输的快速发展，人们对新建道路以及对现有道路的维修或扩建都有需求。任何道路的基层都是其基础，通常由压碎或未压碎的骨料制成。要用于道路基础，材料需要满足相关标准规定的许多要求。评估骨料适用性的基本测试之一是确定其加州承载比（CBR）。本文介绍了级配为0–31.5和0–63 mm的混合骨料的CBR试验结果。对渗透曲线进行了详细评估，在许多情况下，需要对其进行调整以满足行业标准。骨料样品中柱塞渗透曲线的调整导致CBR与原始曲线相比增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Studia Geotechnica et Mechanica MECHANICS-

CiteScore

1.30

自引率

16.70%

发文量

审稿时长

16 weeks

期刊介绍： An international journal ‘Studia Geotechnica et Mechanica’ covers new developments in the broad areas of geomechanics as well as structural mechanics. The journal welcomes contributions dealing with original theoretical, numerical as well as experimental work. The following topics are of special interest: Constitutive relations for geomaterials (soils, rocks, concrete, etc.) Modeling of mechanical behaviour of heterogeneous materials at different scales Analysis of coupled thermo-hydro-chemo-mechanical problems Modeling of instabilities and localized deformation Experimental investigations of material properties at different scales Numerical algorithms: formulation and performance Application of numerical techniques to analysis of problems involving foundations, underground structures, slopes and embankment Risk and reliability analysis Analysis of concrete and masonry structures Modeling of case histories