1996 Fiscal Year Final Research Report Summary
Development of concrete block for improving water environment by making use of natural purification
| Project/Area Number |
07455199
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
水工水理学
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| Research Institution | KYUSHU UNIVERSITY |
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Principal Investigator |
KOMATSU Toshimitsu Kyushu University Faculty of Eng. Professor, 工学部, 教授 (50091343)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUI Seiichi Kyushu University Faculty of Agriculture, Associate Professor, 農学部, 助教授 (60038297)
MATSUNAGA Nobuhiro Kyushu University, Interdisciplinary Graduate School Associate Professor, 大学院・総合理工学研究科, 助教授 (50157335)
ASAI Koji Chugoku Nat. Industrial Res. Inst., AIST,MITI,Special Researcher, 工業技術研究所, 特別研究員 (70202570)
NAKAMURA Yoshiyuki Kyushu University Faculty of Eng. Associate Professor, 工学部, 助教授 (90172460)
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| Project Period (FY) |
1995 – 1996
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| Keywords | Natural purification / block for bank protection / block for riverbed / ecosystem / bank erosion / aquatic environment |
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| Research Abstract |
1. Techno-rock is a concrete block which was originally designed as a protector of the riverbed during high water discharge. It is revealed that the block has a water purifying ability and a function of creating ecosystem in rivers. Experiments were performed to investigate how to enhance both dynamical and environmental abilities of the block. In order to protect scour or sedimentation, effects of attaching shades at the top and the inside a hole of the block were examined. Among several types of shades tested, two-shades type attached to the inside of the vertical hole were most effective to protect both the scour and the sedimentation. Shades sttached at the top of the upstream side reduced the scouring rate, whereas shades in the hole of the downstream side prevented the sedimentation.
2. Very recently, attempts have been made to restore damaged ecosystems in rivers and to improve watershed management. We have proposed the Mother's Rock which maintains or creates ecosystems along riverbanks. The block consists of two spaces, both are directly connected to the land. The upper space is filled with stones to drain well, so that banks should be protected from failure. The lower space is planned to be filled with soil suitable for stabilizing plant vegetations. The block can be useful in stabilizing the bank. creating wildife habitat and providing quasi-natural landscapes.
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Research Products
(7 results)
