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SAND PUMPING DEVICE
To suppress generation of muddy water while improving recovery efficiency of deposit sediment.SOLUTION: Deposit sediment 14 deposited on an underwater bottom portion 12A is excavated downwardly from its upper face 1402 by rotating an excavation blade 42 of an excavation machine 20 to break down the deposit sediment 14. At the same time, the deposit sediment 14 is sucked together with water from a lower end opening 1602 of a deposit sediment recovery pipe 16 positioned just above a swirl flow S including the deposit sediment 14 which is generated by rotatably driving the excavation blade 42. Since the deposit sediment 14 can be recovered continuously and efficiently, it is advantageous in improving recovery efficiency of the deposit sediment 14. Since it is possible to suck to recover from the lower end opening 1602 of the deposit sediment recovery pipe 16 before dispersion of the broken deposit sediment 14 into water, it is advantageous in suppressing generation of muddy water.SELECTED DRAWING: Figure 2
【課題】堆積土砂の回収効率の向上を図りつつ、濁水の発生を抑制する。【解決手段】掘削機２０の掘削刃４２を回動させて水中の底部１２Ａに堆積する堆積土砂１４をその上面１４０２から下方に掘削して堆積土砂１４を切り崩すと同時に、掘削刃４２が回転駆動されることで発生する堆積土砂１４を含む旋回流Ｓの直上に位置する堆砂回収管１６の下端開口１６０２から水と共に堆積土砂１４を吸引する。堆積土砂１４を連続的にかつ効率的に吸引回収でき、堆積土砂１４の回収効率を高める上で有利となり、また、切り崩された堆積土砂１４が水中に拡散する前に堆砂回収管１６の下端開口１６０２から吸引回収することができるので、濁水の発生を抑制する上で有利となる。【選択図】図２
SAND PUMPING DEVICE
To suppress generation of muddy water while improving recovery efficiency of deposit sediment.SOLUTION: Deposit sediment 14 deposited on an underwater bottom portion 12A is excavated downwardly from its upper face 1402 by rotating an excavation blade 42 of an excavation machine 20 to break down the deposit sediment 14. At the same time, the deposit sediment 14 is sucked together with water from a lower end opening 1602 of a deposit sediment recovery pipe 16 positioned just above a swirl flow S including the deposit sediment 14 which is generated by rotatably driving the excavation blade 42. Since the deposit sediment 14 can be recovered continuously and efficiently, it is advantageous in improving recovery efficiency of the deposit sediment 14. Since it is possible to suck to recover from the lower end opening 1602 of the deposit sediment recovery pipe 16 before dispersion of the broken deposit sediment 14 into water, it is advantageous in suppressing generation of muddy water.SELECTED DRAWING: Figure 2
【課題】堆積土砂の回収効率の向上を図りつつ、濁水の発生を抑制する。【解決手段】掘削機２０の掘削刃４２を回動させて水中の底部１２Ａに堆積する堆積土砂１４をその上面１４０２から下方に掘削して堆積土砂１４を切り崩すと同時に、掘削刃４２が回転駆動されることで発生する堆積土砂１４を含む旋回流Ｓの直上に位置する堆砂回収管１６の下端開口１６０２から水と共に堆積土砂１４を吸引する。堆積土砂１４を連続的にかつ効率的に吸引回収でき、堆積土砂１４の回収効率を高める上で有利となり、また、切り崩された堆積土砂１４が水中に拡散する前に堆砂回収管１６の下端開口１６０２から吸引回収することができるので、濁水の発生を抑制する上で有利となる。【選択図】図２
SAND PUMPING DEVICE
揚砂装置
HONDA SHIGERU (author) / INAMI YUTA (author) / SHIBUYA MITSUO (author)
2021-03-01
Patent
Electronic Resource
Japanese
IPC:
E02F
Baggern
,
DREDGING
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