Paper

Study on developing process of water channel by landslide dam overtopping erosion

Kosuke YOSHINO, Taro UCHIDA, Tadanori ISHIZUKA and Takahisa MIZUYAMA　3

Technical Report

Experimental research on elution tendency of chromium hexavalent from SABO soil cement（INSEM）

Munehiro MATSUI, Jun’ichi KURIHARA, Nagazumi TAKEZAWA and Koji IIZUKA　10

Resolution of the discontinuity with the changes of sediment transport form in numerical simulation

Takuro SUZUKI, Taro UCHIDA and Atsushi OKAMOTO　　21

Study on the coefficient of effective rainfall amount in recent sediment disasters

Setsuo HAYASHI and Takashi YAMADA　　31

Factors of shallow landslide caused by typhoon 0310（Etau）in Appetsu River basin, Hidaka region, Hokkaido

Hajime SATO, Satoshi ISHIMARU, Gentaro KAWAKAMI, Masato KANNO, Akiko NAGASAKA, Tomoyuki ABE
Toshiyuki TSUSHIMA and Jun TAJIKA　　40

Research Notes

Experimental study on seismic reactions of gentle slope with ground water

Kazuki MATSUMURA and Yuki YOKOTA　　48

Technical Notes

Actual state of action taken by residents when sediment disasters occurred in Northern Kyushu Region in July 2012

Nobuaki SAKAI, Ryoichi MICHIHATA and Toshihiro KIKUI　　57

Detecting plan shapes of mountain streams using DEM

Yuusuke SAKAI, Kenjiro TSURUGAYA, Hidetomo TATSUMI and Ryoichi OHNO　　64