Feng Chun
Chinese Academy of Sciences
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Publication
Featured researches published by Feng Chun.
Geosystem Engineering | 2015
Fan Yongbo; Oyediran Ibrahim Adewuyi; Feng Chun
Soil rock mixture (SRM) is a special geological material with non-uniform rock distribution, non-continuous cementation between rock and soil, and size effect structural characteristics, hence, possessing mechanical properties different from rock or soil. Field survey indicated that the surface layer of SRM above the rock slope was almost unstable under cyclic loading; however, at the same time, the slope itself was stable. This phenomenon exceeded initial judgments, thus it was important to study the mechanical characteristics of SRM under cyclic loading. Numerical simulation using continuum-based discrete element method was employed to study the strength degradation and failure mechanism of SRM under different frequencies, dynamic stress amplitudes and durations. Results show that the peak stress gradually increased with the increasing dynamic stress amplitude and frequency, but decreased with the increasing percentage of rock because the stiffness decreased greatly under cyclic loading. At the same time, the elasticity modulus decreased gradually with the dynamic stress amplitude and increasing frequency.
Archive | 2016
Li Shihai; Fan Yongbo; Feng Chun; Qiao Jiyan; Fang Zhou; Guo Rukun
Archive | 2016
Fan Yongbo; Li Shihai; Qiao Jiyan; Feng Chun; Guo Rukun; Zhou Yang
Archive | 2016
Fan Yongbei; Li Shihai; Qiao Jiyan; Duan Wenjie; Feng Chun
Archive | 2016
Xiong Hongqi; Sun Houguang; Feng Chun; Han Zhonghe; Luan Hui; Qiao Jiyan; Guo Rukun; Li Shihai
Archive | 2017
Li Shihai; Zhou Dong; Fan Yongbo; Feng Chun
Archive | 2017
Li Shihai; Fan Yongbo; Qiao Jiyan; Duan Wenjie; Feng Chun
Archive | 2017
Duan Wenjie; Li Shihai; Fan Yongbo; Qiao Jiyan; Feng Chun
Archive | 2017
Li Shihai; Feng Chun; Guo Rukun; Qiao Jiyan; Zheng Bingxu; Li Zhanjun; Cui Xiaorong
Archive | 2017
Fan Yongbo; Li Shihai; Duan Wenjie; Qiao Jiyan; Feng Chun; Zhang Li; Zhang Dongshuang