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Shiho ASANO, Hirotaka OCHIAI, Ushio KUROKAWA, Yasuhiko OKADA
2006 Volume 42 Issue 6 Pages
457-466
Published: March 25, 2006
Released on J-STAGE: June 28, 2010
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The effect of geotopology on seismic motion was investigated in order to understand the characteristics of seismic motion that triggered landslides on mountains during the Mid-Niigata Prefecture Earthquake in 2004. Three-dimensional models were made of two mountains where large-scale landslides occurred, and seismic response analysis of these models was carried out by elastoplasticity FEM. This analysis revealed the following characteristics: 1) The amplification of seismic acceleration depended on the size and shape of the mountain. 2) Both surface soil and geotopology affected the seismic motion distribution in the mountain. 3) A comparison of the strain on the ground derived from the seismic response analysis with the landslide distribution revealed that the landslide sources were located in places where the strain on the ground was large
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On landslide disaster that caused damage to a highway in Ohto Village, Nara Prefecture
Yasuhiro NOMURA, Kazunori FUJISAWA
2006 Volume 42 Issue 6 Pages
467-474
Published: March 25, 2006
Released on J-STAGE: June 28, 2010
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In this study, the authors analyzed the movement properties of landslides and the characteristics of damage by investigating the damage to highways during a landslide in Ohto Village, Nara Prefecture, for which precise data until the landslide was available, and applied the concept of risk management to landslide . The study showed that prediction of movement based on precise field surveys was effective for mitigating the damage by the landslide . The authors also pointed out that preliminary risk control is insufficiently recognized and proposed a flow for executing risk management . The landslide was estimated to have caused a loss of about 1.5 billion yen in the regional tourist industry by an indirect effect of damage by rumors, showing that indirect effects are serious as well as direct effects in risk management of landslide.
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Masaaki SAKURAI, Takayuki MAEKAWA, Youji NAITOU, Shoji SAHO
2006 Volume 42 Issue 6 Pages
475-486
Published: March 25, 2006
Released on J-STAGE: June 28, 2010
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Masanori MURAI, Koji SASSA, Shunji YOKOYAMA, Hiromasa HIURA, Shirou NA ...
2006 Volume 42 Issue 6 Pages
487-492
Published: March 25, 2006
Released on J-STAGE: June 28, 2010
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Hidetoshi HASHIMOTO, Ken KOJIMA, Takeomi SATHO, Takahiro HISAZUMI, Mas ...
2006 Volume 42 Issue 6 Pages
493-498
Published: March 25, 2006
Released on J-STAGE: June 28, 2010
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Shirou NAKAYA, Shunji YOKOYAMA, Koji SASSA, Masanori MURAI
2006 Volume 42 Issue 6 Pages
499-505
Published: March 25, 2006
Released on J-STAGE: June 28, 2010
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Edi Prasetyo Utomo, Takeshi ITO, Tigor Tobing
2006 Volume 42 Issue 6 Pages
506-509
Published: March 25, 2006
Released on J-STAGE: June 28, 2010
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Tetsuya KUBOTA, Israel Cantu Silva
2006 Volume 42 Issue 6 Pages
510-512
Published: March 25, 2006
Released on J-STAGE: June 28, 2010
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Hiroshi YAGI, Shoichiro UCHIYAMA, Hideaki MARUI, Satoshi FUJIWARA, Toy ...
2006 Volume 42 Issue 6 Pages
513-515
Published: March 25, 2006
Released on J-STAGE: June 28, 2010
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Immediate measures against landslide
Syouji UENO, Shinro ABE
2006 Volume 42 Issue 6 Pages
516-522
Published: March 25, 2006
Released on J-STAGE: June 28, 2010
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Landslide occurring in the area composed of Mikabu green rock belt in Ehime Prefecture
Hotaka AOKI, Emi YOSHITA, Kouki SUGIURA, Hiromitsu MURAKAMI
2006 Volume 42 Issue 6 Pages
523-524
Published: March 25, 2006
Released on J-STAGE: June 28, 2010
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2006 Volume 42 Issue 6 Pages
plate1-plate2
Published: March 25, 2006
Released on J-STAGE: June 28, 2010
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