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  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院页岩气与地质工程重点实验室
Strengthening effects of cyclic load on rock and concrete based on experimental study

文献类型：期刊论文

作者Chen Weichang1,2,3,4; Li Shouding2,3,4; Li Li1; Shao Mingshen1
刊名INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
出版日期2020-11-01
卷号135页码:11
关键词Cyclic load Strengthening effect Strengthening potential Rock materials and concrete
ISSN号1365-1609
DOI10.1016/j.ijrmms.2020.104479
英文摘要Cyclic load affects the mechanic behavior and stability of rock mass. Although cyclic load effect has been extensively studied for yielding stage, it is somewhat unclear in early stage of rock stress-strain curves. This paper describes an experimental study, carried out cyclic load test in elastic deformation phase, on sandstone, lime-stone, and concrete specimens, to research the mechanical behavior. The result showed strengthening effect of cyclic loads in elastic deformation stage within the first 100 cycles of the cyclic loads. The irreversible deformation under cyclic loads displayed similarity to creep curves, and it increased along with cyclic unloading stress level. Further analysis on cyclic times and unloading stress level demonstrated that there's threshold of strengthening effects under cyclic loads in elastic deformation stage, which could be developed in two aspects: (1) Strength increased with cyclic times until it reached an optimal cycling time then it decreased, and (2) the strength initially increased with unloading stress level then it decreased when the optimal unloading stress level was attained. The optimal cyclic times and optimal unloading stress were calculated according to quadratic function. The result showed that the optimal cyclic times increased with the decrease of unloading stress level. The optimal cyclic unloading stress level is about 30% of elastic limitation stress under same cycling times. Different specimens showed different strengthening potential under uniaxial cycling load since the initial porosity of specimens are different. The conclusion offered by this work would be beneficial to decisions of geoengineering and constructions.
WOS关键词MECHANICAL-BEHAVIOR ; FATIGUE PROPERTIES ; INTACT SANDSTONE ; DAMAGE ; DEFORMATION ; EVOLUTION ; SAMPLES ; STRESS ; MODEL
资助项目National Key Research and Development Program of China[2019YFC1520600] ; National Key Research and Development Program of China[2018YFC1504803] ; National Natural Science Foundation of China[41902285] ; Key Deployment Program of Chinese Academy of Sciences[ZDBS-LY-DQC003] ; Key Deployment Program of Chinese Academy of Sciences[XDA23090402] ; Key Deployment Program of Chinese Academy of Sciences[XDA14040401] ; Key Deployment Program of Chinese Academy of Sciences[KFZD-SW-422] ; IGGCAS Key Deployment Project[IGGCAS-201903] ; IGGCAS Key Deployment Project[SZJJ201901] ; National Science and Technology Major Project[2016ZX05034-003] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program[2019QZKK0905]
WOS研究方向Engineering ; Mining & Mineral Processing
语种英语
WOS记录号WOS:000591746900001
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Deployment Program of Chinese Academy of Sciences ; Key Deployment Program of Chinese Academy of Sciences ; Key Deployment Program of Chinese Academy of Sciences ; Key Deployment Program of Chinese Academy of Sciences ; IGGCAS Key Deployment Project ; IGGCAS Key Deployment Project ; IGGCAS Key Deployment Project ; IGGCAS Key Deployment Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Deployment Program of Chinese Academy of Sciences ; Key Deployment Program of Chinese Academy of Sciences ; Key Deployment Program of Chinese Academy of Sciences ; Key Deployment Program of Chinese Academy of Sciences ; IGGCAS Key Deployment Project ; IGGCAS Key Deployment Project ; IGGCAS Key Deployment Project ; IGGCAS Key Deployment Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Deployment Program of Chinese Academy of Sciences ; Key Deployment Program of Chinese Academy of Sciences ; Key Deployment Program of Chinese Academy of Sciences ; Key Deployment Program of Chinese Academy of Sciences ; IGGCAS Key Deployment Project ; IGGCAS Key Deployment Project ; IGGCAS Key Deployment Project ; IGGCAS Key Deployment Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Deployment Program of Chinese Academy of Sciences ; Key Deployment Program of Chinese Academy of Sciences ; Key Deployment Program of Chinese Academy of Sciences ; Key Deployment Program of Chinese Academy of Sciences ; IGGCAS Key Deployment Project ; IGGCAS Key Deployment Project ; IGGCAS Key Deployment Project ; IGGCAS Key Deployment Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; National Science and Technology Major Project ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program
源URL[http://ir.iggcas.ac.cn/handle/132A11/98645]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Chen Weichang
作者单位1.Chinese Acad Cultural Heritage, Inst Conservat & Restorat, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Chen Weichang,Li Shouding,Li Li,et al. Strengthening effects of cyclic load on rock and concrete based on experimental study[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2020,135:11.
APA Chen Weichang,Li Shouding,Li Li,&Shao Mingshen.(2020).Strengthening effects of cyclic load on rock and concrete based on experimental study.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,135,11.
MLA Chen Weichang,et al."Strengthening effects of cyclic load on rock and concrete based on experimental study".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 135(2020):11.

入库方式： OAI收割

来源：地质与地球物理研究所

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