ScholarLens Back to search
2006•Chinese Journal of Geotechnical EngineeringRequires access

Study on influence factors of California Bearing Ratio (CBR) of expressway subgrade materials

Zhang Xin-yu

Open publisher page 2 citations

Abstract

The California Bearing Ratio(CBR) denoted the potential strength of subgrade material and was an important index to evaluate its performance in expressway.In order to study the main influence factors of the CBR value of clay,the physical and chemical tests of fifteen groups of subgrade materials from the Qingdao-Yinchuan Expressway in Hebei Province were done.Based on the result of tests,that there was obvious difference between CBR values of clays with the same plastic index,the influence factors of CBR of expressway subgrade materials were studied,such as distribution of particle sizes of soils,mineral component and clay mineral component,and useful conclusions were gained.The main influence factors of CBR of expressway subgrade materials were the type and content of minerals component and the shape of distribution curve of particle sizes of soils.The CBR value decreased with the increase of clay-silt ratio.

About this research paper

What this paper is about

The California Bearing Ratio(CBR) denoted the potential strength of subgrade material and was an important index to evaluate its performance in expressway.In order to study the main influence factors of the CBR value of clay,the physical and chemical tests of fifteen groups of subgrade materials from the Qingdao-Yinchuan Expressway in Hebei Province were done.Based on the result of tests,that there was obvious difference between CBR values of clays with the same plastic index,the influence factors of CBR of expressway subgrade materials were studied,such as distribution of particle sizes of soils,mineral component and clay mineral component,and useful conclusions were gained.The main influence factors of CBR of expressway subgrade materials were the type and content of minerals component and the shape of distribution curve of particle sizes of soils.The CBR value decreased with the increase of clay-silt ratio.

Why it matters

OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

The California Bearing Ratio(CBR) denoted the potential strength of subgrade material and was an important index to evaluate its performance in expressway.In order to study the main influence factors of the CBR value of clay,the physical and chemical tests of fifteen groups of subgrade materials from the Qingdao-Yinchuan Expressway in Hebei Province were done.Based on the result of tests,that there was obvious difference between CBR values of clays with the same plastic index,the influence factors of CBR of expressway subgrade materials were studied,such as distribution of particle sizes of soils,mineral component and clay mineral component,and useful conclusions were gained.The main influence factors of CBR of expressway subgrade materials were the type and content of minerals component and the shape of distribution curve of particle sizes of soils.The CBR value decreased with the increase of clay-silt ratio.

Key concepts: Subgrade, California bearing ratio, Silt, Geotechnical engineering, Atterberg limits, Environmental science, Soil water, Geology

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Study on influence factors of California Bearing Ratio (CBR) of expressway subgrade materials — Research Paper | ScholarLens