1997 Fiscal Year Final Research Report Summary
Development of Naturalistic River Improvement with Using High Performance Durable Concrete
| Project/Area Number |
07555434
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
土木材料・力学一般
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| Research Institution | HOKKAIDO UNIVERSITY |
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Principal Investigator |
SAEKI Noboru Hokkaido University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (80002004)
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| Co-Investigator(Kenkyū-buntansha) |
YOSHII Atsushi Hokkaido Development Bureau, Civil Engineering Research Institue, Head of Enviro, 開発土木研究所, 環境研究室長(研究職
TACHIBANA Harukuni Hokkaido University, Graduate School of Engineering, Associate Professor, 大学院・工学研究科, 助教授 (90002021)
ITAKURA Tadaoki Hokkaido University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (70001138)
SHIMURA Kazunori Hokkaido University, Graduate School of Engineering, Research Associate, 大学院・工学研究科, 助手 (60187474)
MIKAMI Takashi Hokkaido University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (00002303)
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| Project Period (FY) |
1995 – 1997
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| Keywords | Naturalistic space / Waterfront space / Ecological space / River / Revetment / Porous concrete / Point fix |
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| Research Abstract |
Prevention of river disaster, such as flood protection and improvement of hydraulic effectiveness were the major interest in last decades. It was only recently that the necessity of the naturalistic river improvement is pointed out in Japan. The main object of this research is to develop a new method of the naturalistic river improvement with using high performance durable concrete.
Fix point method, a new type of river improvement construction method, was proposed using a high performance porous concrete block at the critical zigzag angle of river course. The high performance porous concrete, good for ecological circumstances, was developed by the durable concrete with gap-graded mixture.
In-situ exposure test for the new type of revetments and field tests were conducted at the same time to investigate the behavior of sediment transportation and the sedimental property as well as hydraulic stability in the case of flood disaster. The effects of the high performance porous concrete on natural environment are simultaneously confirmed the safety against the alkali-dissolution, ecological and biological alterations. The tests results of aforementioned application experiments indicate the effectiveness to the naturalistic river improvement using high performance porous concrete.
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