Papers

Effects of the measurement density of soil thickness on prediction of shallow landslide susceptibility

Koichi AKIYAMA, Taro UCHIDA, Keiji TAMURA and Koji KAMEE　　3

Technical Report

Experimental study on runoff control for sediment passing through upper parts of a grid-type high dam
　　　Shigeo HORIUCHI, Shigekiyo TABATA, Shingo ONO, Takahiro ITOH and Takahisa MIZUYAMA　11

Extraction of debris flow’s occurrence and non-occurrence rules using site survey data for the sediment disasterin Hofu, Yamaguchi, Japan in July 2009
　　　Hisashi SAWADA, Shigemitsu SUGIHARA, Hiroyuki OHISHI, Yoshinori ARAKI and Kohei FURUKAWA　17

Research Notes

Effect of flexible protection barriers on slope failure
　　　Miki CHIBA, Tetsuo SAKAGUCHI, Kazuhito SHIMOJO, Toshinori IMURA, Louis Bugnion　25

Technical Notes

Development of portable suction sampler for fine sediment on the channel bed and its application to estimate the residence time of fine sediment
　　　Taijiro FUKUYAMA, Shigeru MIZUGAKI, Yuichi ONDA　30

Investigation of drift wood caused by heavy rain at Shobara, Hiroshima on July 16, 2010
　　　Hajime SHIBUYA, Satoshi KATSUKI, Hisashi OHSUMI, Hiroshi KOKURYO　34