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Publikováno v:
京都大学防災研究所年報. B. 37(B-2):421-440
The Meghna river, one of Bangladesh's major rivers, flows through the easter part of that country, eroding its banks at many points, and this erosion has been assumed an alarming magunitude since the enormous floods of 1987 and 1988.This paper descri
Publikováno v:
京都大学防災研究所年報. B. 37(B-2):441-458
About 1000 rich-in-nature river works are being carried out by central and local governments as pilot projects in the beginning of 1992.As revetment works occupy the main portion in river improvement works, various types of rich-in-nature revetments
Publikováno v:
京都大学防災研究所年報. B. 36(B-2):551-569
The present study deals with local scour in downstream of bedprotection works. The experiments were carried out in the case of sudden change in bed roughness from a rough bed consisting of protruding bed-protection works (hollow squared blocks) to a
Autor:
FUJITA, Yuichiro, KUROKAWA, Yoshihiko
Publikováno v:
京都大学防災研究所年報. B. 36(B-2):465-485
Driftwood amplifies flood damage and makes restorations difficult, by heaping up in front of river structures and by remaining on farmlands and urban areas. Two kinds of fundamental experiments were carried on to elucidate transport process of driftw
Autor:
Study Group for Laboratory Automation in Sediment Hydraulics, IMAMOTO, Hirotake, SAWAI, Kenji, FUJITA, Yuichiro, UTAMI, Tadashi, ASHIDA, Kazuo, TAKAHASHI, Tamotsu, EGASHIRA, Shinji, SATOFUKA, Yoshihumi, MURAMOTO, Yoshio, KAWATA, Yoshiaki, FUJIKI, Shigeo, FUJIHARA, Seiji, TSUCHIYA, Yoshito, UENO, Testuo, NAKAGAWA, Hajime, YAMASHITA, Takao, ISHIGAKI, Taisuke
Publikováno v:
京都大学防災研究所年報. B. 35(B-2):389-402
This study was carried out as a joint work among the research sections of DPRI concerning with experimental hydraulics. Various methods and problems about the measurement, control and analysis in sediment hydraulics were discussed and some of them we
Autor:
MURAMOTO, Yoshio, FUJITA, Yuichiro
Publikováno v:
京都大学防災研究所年報. B. 35(B-2):89-114
This paper describes year-to-year changes in channel widths and thalwegs of the Brahmaputra and Ganges rivers from 1987 to 1992 using the Landsat images, and the characteristics of flow and channel behaviors in the Meghna river related to the severe
Publikováno v:
京都大学防災研究所年報. B. 35(B-2):115-139
Flood hazard in sloped areas is amplified by a large amount of drift wood that is conveyed in rushed waters, being supplied by river bank erosion and surface failure of mountain side during heavy rainfall. Drift wood damages river bank and structures