Influence of fine-grained soil and loading rate on the mechanical behavior of soil rock mixtures

WANG Hongbing; REN He; ZHANG Xuejie; SUN Wenchao; XU Fan; LUO Anjing; XU Wenjie

doi:10.16030/j.cnki.issn.1000-3665.202403009

2024 Vol. 51, No. 6

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Article navigation > Hydrogeology & Engineering Geology > 2024 > 51(6): 86-92

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WANG Hongbing, REN He, ZHANG Xuejie, SUN Wenchao, XU Fan, LUO Anjing, XU Wenjie. Influence of fine-grained soil and loading rate on the mechanical behavior of soil rock mixtures[J]. Hydrogeology & Engineering Geology, 2024, 51(6): 86-92. doi: 10.16030/j.cnki.issn.1000-3665.202403009

Citation:

WANG Hongbing, REN He, ZHANG Xuejie, SUN Wenchao, XU Fan, LUO Anjing, XU Wenjie. Influence of fine-grained soil and loading rate on the mechanical behavior of soil rock mixtures[J]. Hydrogeology & Engineering Geology, 2024, 51(6): 86-92. doi: 10.16030/j.cnki.issn.1000-3665.202403009

Influence of fine-grained soil and loading rate on the mechanical behavior of soil rock mixtures

1.
Yunnan Communications Investment & Construction Group Co. Ltd., Kunming, Yunnan　650228, China
2.
Broadvision Engineering Consultants Co. Ltd., Kunming, Yunnan　650011, China
3.
Yunnan Tiankun Human Resource Management Co. Ltd., Kunming, Yunnan　650220, China
4.
State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing　100084, China

More Information

Corresponding author: REN He, 184630368@qq.com

Received Date: 05 March 2024

Revised Date: 27 August 2024

Publish Date: 15 November 2024

Abstract

Abstract

Soil-rock mixtures are widely used in engineering for filling and subgrade applications, with their mechanical behavior playing a critical role in the stability and safety of engineering structures. This study utilized two types of fine-grained soils, non-cohesive and cohesive, to construct the soil-rock mixtures with similar stone content; indoor triaxial tests were conducted to investigate the effects of fine-grained soil type and loading rate on the mechanical behavior of soil-rock mixtures. The results show that under drained conditions, the strength of the soil-rock mixture containing non-cohesive soil is higher than that of cohesive soil, while under undrained conditions, the strength of the soil-rock mixture containing cohesive soil is higher. Variations in loading rate significantly impacted the mechanical behavior of soil-rock mixtures, with faster loading rates causing more intense movement, rotation, and frequent damage to internal stone particles, ultimately influencing their macroscopic mechanical properties. This study provides valuable insights for the design and construction of soil-rock mixture engineering.
- soil-rock mixture (S-RM) /
- triaxial test /
- fine soil /
- loading velocity /
- mechanical behavior

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References

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