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袁晓铭, 卢坤玉, 汪云龙, 袁近远, 陈龙伟. 区域土特征函数:概念与原理[J]. 岩土工程学报, 2023, 45(12): 2429-2437. DOI: 10.11779/CJGE20220828
引用本文: 袁晓铭, 卢坤玉, 汪云龙, 袁近远, 陈龙伟. 区域土特征函数:概念与原理[J]. 岩土工程学报, 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
Citation: 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

区域土特征函数:概念与原理

Characteristic functions of regional soils: concepts and principles

  • 摘要: 作为区域土特征理论研究的起点,以土力学和土动力学经典理论和实际资料为基础,提出了相应的概念、原理、准则和实证。从土的经典本构模型出发,提出了双控制参数的概念,以此作为区域土特征理论的基础。提出了区域土特征函数的概念,阐明了其定义、内涵和外延,提出了包括控制性、普适性、完备性、原位性、一致性、可操作性和存在性等属性要求在内的区域土特征函数构建准则。针对常见的砂土和黏土,提出了采用 N\text - v_\texts 特征函数表征其区域土力学和工程特性的思想,给出了构建方法,阐明了其原理,通过17个国家77个地区实际 N\text - v_\texts 函数关系的分布特征,论证了砂土和黏土 N\text - v_\texts 特征函数的存在性。

     

    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_\texts 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_\texts characteristic function of sand and clay is proved by analyzing the distribution characteristics of N-vs function relations in 77 regions of 17 countries of the world.

     

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