書誌事項
- タイトル別名
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- Development of an automatic opening pit bedload sampler
- ジドウ カイコウシキ ピットソウリュウサ ケイソク ソウチ ノ カイハツ
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抄録
In the observation of bed load transport using a hydrophone, a bed load measuring pit is often installed for the calibration of the hydrophone's pulse data. A small pit, however, poses a problem as it tends to fill up before a flood event reaches its peak. Because past observations have revealed a tendency for bed load to exhibit different flow patterns before and after the peak of a flood, we need to establish a relationship between the hydrophone pulses and bed load transport after the peak. For this purpose, a device for measuring bed load transport has been developed with a mechanism that opens the slit of the measuring pit automatically at the peak of a flood. This device uses water-level measurements obtained by an ultrasonic water gauge as a trigger to activate a hydraulic jack which moves the lid installed over the slit so as to allow the pit to start collecting bed load in the middle of a flooding event.
収録刊行物
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- Journal of the Japan Society of Erosion Control Engineering
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Journal of the Japan Society of Erosion Control Engineering 65 (2), 37-39, 2012
公益社団法人 砂防学会
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詳細情報 詳細情報について
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- CRID
- 1390001205479866496
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- NII論文ID
- 10030773258
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- NII書誌ID
- AN0012035X
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- ISSN
- 21874654
- 02868385
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- NDL書誌ID
- 023900455
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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