衝撃貫入試験法の開発と試験結果

DOI Web Site 被引用文献16件

書誌事項

タイトル別名
  • Study on Impact Penetration Test of Rock.
  • ショウゲキ カンニュウ シケンホウ ノ カイハツ ト シケン ケッカ

この論文をさがす

説明

Impact penetration test is important to observe the behaviour of rock undergoing very rapid loading which can not be realized by a testing machine. A force-penetration relationship is considered to be closely related to performance of percussive rock fragmentation process.<BR>A lot of experimental studies have been carried out and it was found that the slope of force-penetration curve in impact penetration test is steeper than that in static penetration test. However, qualitatively much difference exists from author to author.<BR>A system of impact penetration test developed in this study comprises a hammer and a cylindrical bar with a bit at one end. Stress wave is measured by a pair of semi-conductor strain gauges, and penetration is calculated by the measured stress wave.<BR>Nine rocks were tested and force-penetration curves in impact and static tests were obtained together with uniaxial compressive strength, indirect tensile strength, Young's modulus, Poison's ratio, rebound hardness by Schmidt hammer and Shore hardness. Good correlation was found between force-penetration curves in impact and static tests, and slope by impact test, Kd can be expressed by slope in static test, Ks as Kd=1.2Ks<BR>The difference between Kd and Ks is not so much as expected, just 20%.

収録刊行物

  • 資源と素材

    資源と素材 108 (2), 134-140, 1992

    一般社団法人 資源・素材学会

被引用文献 (16)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ