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Title: 花崗岩と砂岩における動的一軸圧縮強度の寸法効果に関する研究
Other Titles: Size effect of dynamic uniaxial compressive strength of a granite and sandstone
Authors: チョ, サンホ1 Browse this author
Oh, Se-wook Browse this author
Min, Gywong-jo Browse this author
Park, Se-Woong Browse this author
藤井, 義明5 Browse this author →KAKEN DB
福田, 大祐6 Browse this author →KAKEN DB
Authors(alt): Cho, Sang-ho1
Fujii, Yoshiaki5
Fukuda, Daisuke6
Keywords: 動的一軸圧縮強度
スプリット ホプキンズ 圧力 バー
Dynamic uniaxial compressive strength
Specimen size dependent rock strength
Split Hopkinson pressure bar
Issue Date: 27-Mar-2018
Publisher: 資源・素材学会
Journal Title: 資源・素材学会春季大会講演集(2018)
Volume: 5
Issue: 1
Start Page: 1201-10-10
Abstract: In laboratory measurements of rock properties, the specimen size dependent rock strength has always beenan issue. Numerous studies have been conducted to investigate the correlation between specimen size androck strength under various loading rate in last few decades. In this study, the dynamic uniaxial compressiontests of Geochang granite and Kimachi sanstone were carried out to investigate the size-effect on rockdynamic strength. Split Hopkinson pressure bar (SHPB) system was used to load the rock specimensdynamically. Kimachi sandstone and Geochang granite specimens with different diameter and length wereprepared. As a result, it has been found that the dynamic uniaxial compression strength of the granite andsandstone have been increased with increasing specimen size. That are coincident with the results revealedrecently by some researchers who have showed that the uniaxial compressive strengths of sedimentary rockssignificantly increase with increasing specimen diameter up to around 54mm diameter and reduce to with size increment.
Description: 資源・素材学会平成30(2018)年度春季大会、2018年3月27日(火)~29日(木)、東京大学 本郷キャンパス、東京
Conference Name: 資源・素材学会平成30(2018)年度春季大会
Conference Place: 東京
Type: proceedings
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 藤井 義明

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