期刊论文

Zhang, JQ

英文

Geomechanics and Geophysics for Geo-Energy and Geo-Resources

2363-8419

2025

11

1

1-22

10.1007/s40948-025-00935-5

The work is supported by the National Natural Science Foundation of China (Grant No. 52208341), the China Postdoctoral Science Foundation (Grant No. 2024M752419), the Natural Science Foundation of Hunan Province (Grant No. 2023JJ40293, 2022JJ30257), Xiaohe Sci-Tech Talents Special Funding under Hunan Provincial Sci-Tech Talents Sponsorship Program(2023TJ-X74), the Scientific Research Projects of Hunan Provincial Department of Education (Grant No. 23B0492, 23A0368), Water Resources Science and Technology Program of Hunan Province, China (XSKJ2023059-45). This support is gratefully acknowledged.

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Quantitatively descripting the gradation using equation has a great significance on the investigating of the optimal gradation and multi-scale effects for coarse-grained subgrade fillers. A new gradation equation for coarse-grained subgrade filler (CSF) was proposed according to the traditional fractal theory. Relationship between the shape of gradation curve and model parameters was analyzed, the curve shows sigmoid when $$- \sqrt { - 2\alpha } < \beta < \sqrt { - 2\alpha }$$ , and the curve respects hyperbolic when $$\beta>...