Investigation on Fractal Characteristics of Disintegration Process and Strength of Rockfill under Water Pressure

Hao Cheng; Peifeng Han; Youwen Su

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Investigation on Fractal Characteristics of Disintegration Process and Strength of Rockfill under Water Pressure

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The paper aimed to investigate internal mechanics between disintegration of the rockfill material and stability of the dam, and further provide scientific evidence for the design of rockfills, through the conducted disintegration of water pressure and triaxial test to analyze fractal characteristics, strength and deformation of the rockfill in whole disintegration procedure. As the results that the water pressure was low 0.2 MPa, the increasing water pressure would delay the disintegration rate of rockfill;while the water pressure was above 0.2 MPa, it would promote the disintegration rate of the rockfill. In addition, in the disintegration process, the cohesion force of rockfill rapidly slowed down at the beginning and then gradually increased. The internal friction angle increased gradually during the whole disintegration process. Furthermore, when the water pressure increased from 0 MPa to 0.6 MPa, the partial stress firstly decreased to a minimum level when the water pressure was 0.2 MPa, and then increased gradually with water pressure.

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《地球科学和环境保护期刊（英文）》 |2020年第6期|P.20-35|共16页
作者
Hao Cheng; Peifeng Han; Youwen Su;
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作者单位

School of Civil Engineering and Architecture Southwest University of Science and Technology Mianyang China;

School of Civil Engineering and Architecture Southwest University of Science and Technology Mianyang ChinaResearch Center on Mountain Torrent and Geologic Disaster Prevention Ministry of Water Resources Wuhan ChinaShock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province Mianyang China;

School of Civil Engineering and Architecture Southwest University of Science and Technology Mianyang China;

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原文格式 PDF
正文语种 chi
中图分类矿山设计与建设;
关键词
Rockfill; Slaking Characteristics; Fractal Dimension Value; Strength; Defor-mation;

机译：堆石料;崩解特性;分形维数;强度;变形;

Investigation on Fractal Characteristics of Disintegration Process and Strength of Rockfill under Water Pressure

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