著者

松倉,公憲

出版者

日本地形学連合

雑誌

地形

巻号頁・発行日

vol.25, no.2, 2004-04-25

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We briefly review some problems arising in papers on the Schmidt hammer used in a geomorphological context. There are several types of Schmidt hammer, and many measurement methods including ways of collecting data have beeen proposed, but no standard method for taking measurerements has yet been established. We propose continueous (repeated) impacts for assessing the hardness of intact rock and single impact for assessing the hardness of a rock surface, including the weathering layer.