Prediction and Evaluation of Grain Size-Dependent Maximum Dry Density for Gravelly Soil

Ding, Yu; Rao, Yunkang; Sarmah, Ajit K.; Huang, Xiaole; Peng, Ben; Liu, Daxiang

doi:10.1061/(asce)gm.1943-5622.0001775

Cited by 14 publications

(2 citation statements)

References 27 publications

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“…Scholars at home and abroad have done a lot of work on the impact of grain size composition on other soil engineering properties [26][27][28][29][30]. Thevanayagam and Mohan [31] studied the influence of fine grain content on the engineering properties of sand, and proposed to describe the stress-strain relationship of sand by using the inter particle void ratio and state parameters.…”

Section: Introductionmentioning

confidence: 99%

Study on The Influence of Grain Size Composition on Engineering Properties of Granite Residual Soil

Tang¹,

Chen²,

Zhou³

et al. 2023

Pol. J. Environ. Stud.

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The parent rock properties, weathering degree and soil formation conditions of soil in different regions and different levels are different, which results in the obvious difference of grain size composition of soil. At present, the research on granite residual soil often ignores the mechanism of its grain size composition on engineering properties. In this study, a series of soil samples with different grain size composition were configured based on the content of gravel grain in the granite residual soil. This paper mainly studies the influence of the content of gravel grain group and fine grain group of the compaction and strength of granite residual soil. The results show that the optimal moisture content and cohesion of granite residual soil are mainly controlled by the content of fine grain, and the maximum dry density and internal friction angle are mainly controlled by gravel grain. For each 1% increase in the fine grain content of the soil, the optimal moisture content of the soil will approximately increase by 0.11%, and correspondingly, the cohesion of the soil will approximately increase by 0.27 kPa. In addition, the engineering properties of granite residual soil with different grain size composition are also affected by soil structure. Finally, based on the microstructure characteristics of granite residual soil, three different aggregates are proposed, and seven micro models with different structural characteristics are established. Micro models established by different aggregates can control different engineering properties of soil. The research results are helpful to understand the relationship between the engineering properties and grain size composition of granite residual soil and provide reference for the refinement of its engineering classification.

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Section: Introductionmentioning

confidence: 99%

Study on The Influence of Grain Size Composition on Engineering Properties of Granite Residual Soil

Tang¹,

Chen²,

Zhou³

et al. 2023

Pol. J. Environ. Stud.

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show abstract

“…Qiao et al [4] reported that the size effect, skeleton, and gravel-doped amount were the key factors of compaction characteristics of clay mixed with gravel. Ding et al [11] pointed out that there was an intrinsic dependence of grain sizes on the maximum dry density for gravelly fillers. Wu et al [12] studied the effect of gradation on the compatibility of coarse-grained fillers.…”

Section: Introductionmentioning

confidence: 99%

Influence of Rock Block Content on Compaction Characteristics of Graded Coarse-Grained Fillers

et al. 2021

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The bearing capacity, stability, and durability of subgrade are affected by the compaction quality of fillers to a large extent. In this study, samples of graded coarse-grained fillers with different rock block contents were designed and prepared with the aid of an improved continuous gradation equation for coarse-grained soils. Then standard compaction tests of these samples with different water content conditions were conducted to understand the influence of rock block content on the compaction characteristics of graded coarse-grained fillers. Results show that the compaction curve peaks of graded coarse-grained fillers always increase with the rock block content. The maximum dry density of graded coarse-grained fillers increases linearly with the rock block content in approximation, while the optimal water content is the opposite. The optimal water content of graded coarse-grained fillers decreases in nonlinearity with characteristics of rapidly first and then slowly. Two empirical formulas about the rock block content were summarized for predicting the maximum dry density and optimal water content of graded coarse-grained fillers. The results of this study can provide a reference for the engineering application of graded coarse-grained fillers.

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Gravel hardness effect on compaction characteristics of gravelly soil

Shi,

Li,

Jiang

et al. 2024

J. Mt. Sci.

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Prediction and Evaluation of Grain Size-Dependent Maximum Dry Density for Gravelly Soil

Cited by 14 publications

References 27 publications

Study on The Influence of Grain Size Composition on Engineering Properties of Granite Residual Soil

Study on The Influence of Grain Size Composition on Engineering Properties of Granite Residual Soil

Influence of Rock Block Content on Compaction Characteristics of Graded Coarse-Grained Fillers

Gravel hardness effect on compaction characteristics of gravelly soil

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