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Volume 15 (1978 - 197･･･
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Volume 15, Issue 4
Displaying 1-6 of 6 articles from this issue
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Yasumasa FUKUMOTO, Takahiro TERAKAWA, Toshihiko KOMIYA1979 Volume 15 Issue 4 Pages 1-11_1
Published: March 31, 1979
Released on J-STAGE: February 25, 2011
JOURNAL FREE ACCESSThe long-term creep test with large specimen in-situ was carried out at the time from winter to spring when the movement of landslides was accelarated.
The results clarified that the specimens were ruptured by shearing at the stress state over the upper yield value in soil tests, which is less than one third of the shear strength and is nearly equal to the residual strength of the specimen. This fact suggests that the upper yield value is available for the stability analysis of slope to be crepe at landslide area.View full abstractDownload PDF (1724K) -
Hiroyuki YOSHIMATSU, Kiyofumi SHIMIZU, Yasuhide SAHAMOTO1979 Volume 15 Issue 4 Pages 12-19_1
Published: March 31, 1979
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSThe mophological features of landslide areas are due to the soil properties of the sliding masses. In this paper, the land slides are divided into three types, and feature of mophological factors among the types can be investigated by statical methods. It is possible to judge the landslideslopes by using the mophological factors, and then hazard of landslideslopes can be estimated from statical analysis.View full abstractDownload PDF (1421K) -
Yoshimasa KOBAYASHI, Akira SUEMINE, Toshifumi KONISHI1979 Volume 15 Issue 4 Pages 20-27_1
Published: March 31, 1979
Released on J-STAGE: February 25, 2011
JOURNAL FREE ACCESSInterpretations in seismic-refraction prospecting applied to a landslide area in Shikoku are described in detail. It is important to distinguish inherent velocities, which are consistent in an area concerned, from apparent ones before constructing a working model for interpretation. Delay-time method reveals to be useful in a case where the shot marker happens to be unreliable. Fan-shooting technique is employed for surveying deeper substratum by means of shorter spreads. A small scale low-velocity zone is detected by ordinary profile shooting as well as by fan shooting.View full abstractDownload PDF (1346K) -
Shinobu NAGAMIZO1979 Volume 15 Issue 4 Pages 28-32_1
Published: March 31, 1979
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSInvestigation of water quality of ground water in landslide areas is sometimes used for design of drainage works for landslide control. Considering a selection of elements of water quality and division of ground water, Ca++, Mg++ and alkalinity are indispensable and division of ground water can be done by using a correlation between Ca++ +Mg++ and alkalinity. It is found that water quality in landslide areas is not peculiar and have a resemblance to the water distributing generally over the earth.View full abstractDownload PDF (795K) -
Kyoji SASSA1979 Volume 15 Issue 4 Pages 33-40
Published: March 31, 1979
Released on J-STAGE: February 25, 2011
JOURNAL FREE ACCESSThe author had a chance to visit landslides in Austria, Scandinavia, England and Czechoslovakia with the fellowship of the Japan Society for the Promotion of Science and the subsidy of the Disaster Prevention Research Association during June 1977-June 1978.
The landslides in Czechoslovakia and England were already reported in this journal. Therefore, the author will report the four types of landslides and their examples in Austria and Scandinavia as written below.
1) The landslide in Moraine; Embacher Blaike and Schesatobel
2) The landslide in Crystalline schist; The Graden Bach landslide
3) The landslide in Marl; Gschliefgraben
4) The landslide in Quick clay; The Romerike landslide and the Tuve landslideView full abstractDownload PDF (12669K) -
[in Japanese]1979 Volume 15 Issue 4 Pages 41-42
Published: March 31, 1979
Released on J-STAGE: June 28, 2010
JOURNAL FREE ACCESSDownload PDF (356K)
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