Gradation equation of coarse-grained soil and its applicability

Autor:	Jun-gao Zhu, Bao Mengdie, Ge Chen, Wu Erlu, Guo Wanli
Rok vydání:	2020
Předmět:	Metallic materials Mathematical analysis Metals and Alloys General Engineering Range (statistics) Value (computer science) Gradation Sigmoid function Mathematics
Zdroj:	Journal of Central South University. 27:911-919
ISSN:	2227-5223 2095-2899
DOI:	10.1007/s11771-020-4340-z
Popis:	Gradation equation is one way to describe the gradation of coarse-grained soil conveniently, exactly and quantitatively. With the gradation equation, the influence of gradation on the mechanical behaviors of coarse-grained soil can be expressed quantitatively. A new gradation equation with a parameter is proposed. The basic properties and applicability of the new equation are studied. The results show that the proposed equation has the applicability to express coarse-grained soil gradation (CSG), and the range of the parameter β is found to be 0 0.5, the gradation curve is sigmoidal, otherwise the gradation curve is hyperbolic. For well graded gradations, the parameter has the value of 0.13
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cb60e169183fd64bff652b97657a448e https://doi.org/10.1007/s11771-020-4340-z Zobrazit plný text záznamu Full text from SpringerLink