A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GRAB BUCKET FOR DREDGING AND DREDGING METHOD
To provide a grab bucket for dredging and a dredging method capable of effectively preventing polluted water generated in an inner side of a shell from flowing out to an outer side of a shell without damaging dredging workability.SOLUTION: There is provided a pollution inhibition mechanism 10 which makes an inside of a cylinder 11 in which a piston 12 is installed communicate with an inner side of a shell 2 through a communication pipe 13, and moves the piston 12 relative to the cylinder 11 in cooperation with an opening and closing operation of the shell 2, in a sealed type grab bucket 1 for dredging. When the shell 2 is closed and sediment S in a water bottom is scooped, polluted water DW in the inner side of the shell 2 is sucked into the inside of the cylinder 11 through the communication pipe 13 by relative movement of the piston 12. When the closed shell 2 is opened and the sediment S is ejected, the polluted water DW sucked into the inside of the cylinder 11 is ejected into the inner side of the shell 2 through the communication pipe 13 by the relative movement of the piston 12.SELECTED DRAWING: Figure 2
【課題】浚渫の作業性を損なうことなく、シェルの内側に発生する汚濁水がシェルの外側へ流出することを効果的に抑制することができる浚渫用グラブバケットおよび浚渫方法を提供する。【解決手段】密閉型の浚渫用グラブバケット１に、ピストン１２を内設したシリンダ１１の内部とシェル２の内側とを連通管１３により連通させて、シェル２の開閉動作に連動してピストン１２をシリンダ１１に対して相対的に移動させる汚濁抑制機構１０を設けておき、シェル２を閉じて水底の土砂Ｓをすくう際には、シェル２の内側の汚濁水ＤＷをピストン１２の相対的な移動により連通管１３を通じてシリンダ１１の内部に吸引し、閉じたシェル２を開いて土砂Ｓを排出する際には、シリンダ１１の内部に吸引した汚濁水ＤＷをピストン１２の相対的な移動により連通管１３を通じてシェル２の内側へ排出する。【選択図】図２
GRAB BUCKET FOR DREDGING AND DREDGING METHOD
To provide a grab bucket for dredging and a dredging method capable of effectively preventing polluted water generated in an inner side of a shell from flowing out to an outer side of a shell without damaging dredging workability.SOLUTION: There is provided a pollution inhibition mechanism 10 which makes an inside of a cylinder 11 in which a piston 12 is installed communicate with an inner side of a shell 2 through a communication pipe 13, and moves the piston 12 relative to the cylinder 11 in cooperation with an opening and closing operation of the shell 2, in a sealed type grab bucket 1 for dredging. When the shell 2 is closed and sediment S in a water bottom is scooped, polluted water DW in the inner side of the shell 2 is sucked into the inside of the cylinder 11 through the communication pipe 13 by relative movement of the piston 12. When the closed shell 2 is opened and the sediment S is ejected, the polluted water DW sucked into the inside of the cylinder 11 is ejected into the inner side of the shell 2 through the communication pipe 13 by the relative movement of the piston 12.SELECTED DRAWING: Figure 2
【課題】浚渫の作業性を損なうことなく、シェルの内側に発生する汚濁水がシェルの外側へ流出することを効果的に抑制することができる浚渫用グラブバケットおよび浚渫方法を提供する。【解決手段】密閉型の浚渫用グラブバケット１に、ピストン１２を内設したシリンダ１１の内部とシェル２の内側とを連通管１３により連通させて、シェル２の開閉動作に連動してピストン１２をシリンダ１１に対して相対的に移動させる汚濁抑制機構１０を設けておき、シェル２を閉じて水底の土砂Ｓをすくう際には、シェル２の内側の汚濁水ＤＷをピストン１２の相対的な移動により連通管１３を通じてシリンダ１１の内部に吸引し、閉じたシェル２を開いて土砂Ｓを排出する際には、シリンダ１１の内部に吸引した汚濁水ＤＷをピストン１２の相対的な移動により連通管１３を通じてシェル２の内側へ排出する。【選択図】図２
GRAB BUCKET FOR DREDGING AND DREDGING METHOD
浚渫用グラブバケットおよび浚渫方法
IKEZAKI SHIGEHIRO (author) / HASEGAWA TOMONAO (author) / TSUKUDA TAISUKE (author) / YAMAGISHI MASA (author) / MOMOTA SHOGO (author)
2019-03-14
Patent
Electronic Resource
Japanese