Characteristic functions of regional soils: concepts and principles

YUAN Xiaoming; LU Kunyu; WANG Yunlong; YUAN Jinyuan; CHEN Longwei

doi:10.11779/CJGE20220828

Volume 45 Issue 12

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Chinese Journal of Geotechnical Engineering > 2023 > 45(12): 2429-2437. > DOI: 10.11779/CJGE20220828

YUAN Xiaoming, LU Kunyu, WANG Yunlong, YUAN Jinyuan, CHEN Longwei. Characteristic functions of regional soils: concepts and principles[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(12): 2429-2437. DOI: 10.11779/CJGE20220828

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Characteristic functions of regional soils: concepts and principles

1.
Institute of Engineering Mechanics, China Earthquake Administration; Key Laboratory of Earthquake Engineering and Engineering Vibration, China Earthquake Administration, Harbin 150080, China
2.
Heilongjiang University of Science and Technology, Harbin 150027, China

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Received Date: July 03, 2022
Available Online: March 05, 2023

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Abstract

Abstract

As the starting point of the theoretical study on the regional soil characteristics, based on the classical theories of soil mechanics and soil dynamics and the actual data, the related concept, principle, criterion and demonstration are put forward. Based on the classical constitutive model for soils, the concept of dual-control parameter is proposed, which is a basis for the theoretical study on the regional soil characteristics. The concept of regional soil characteristic function is put forward, its definition, connotation and extension are clarified, and the construction criteria including control, universality, completeness, in situ, consistency, operability and existence are put forward. For the conventional sand and clay, the idea of using $N{\text{ - }}{v_{\text{s}}}$ characteristic function to characterize its regional soil characteristics is proposed, the construction method is given, and its principle is clarified. The existence of $N{\text{ - }}{v_{\text{s}}}$ characteristic function of sand and clay is proved by analyzing the distribution characteristics of N-v_s function relations in 77 regions of 17 countries of the world.
- regional soil feature,
- dual-control parameter,
- regional soil characteristic function,
- N-v_s characteristic function

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References

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