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EXCAVATOR, AND GROUND EXCAVATION METHOD
To excavate a ground below a cutting edge part of a caisson skeleton with a simple configuration.SOLUTION: An excavator 10 extends in a vertical direction and is immersed into a ground, and carries out the underwater excavation of a ground 2 below a cutting edge part 1b of a cylindrical caisson skeleton 1 storing water therein. The excavator 10 includes: a trestle 11 mounted on the ground 2 positioned in the caisson skeleton in plan view; a body part 12 which is supported on the trestle 11 and is horizontally swingable to the trestle 11; an arm 13 which has an upper part pivotally supported on one side of the body part 12, extends downward from the upper part, and is expandable/contractible; a tilting device 15 which tilts the arm 13 around a pivoting shaft Q above the arm 13; and a ground excavation part 14 which is provided on a lower end 13c of the arm 13, and carries out the underwater excavation of the ground 2, and can carry out the underwater excavation of the ground 2 below the cutting edge part 1b of the caisson skeleton 1 in a fan shape in plan view by actuation of the body part 12, the arm 13 and the tilting device 15.SELECTED DRAWING: Figure 5
【課題】簡易な構成でケーソン躯体の刃口部の下方の地盤を掘削する。【解決手段】掘削機１０は、上下方向に延びて地中に沈設され、かつ、内部に水が貯留されている筒状のケーソン躯体１の刃口部１ｂの下方の地盤２を水中掘削するものである。掘削機１０は、平面視でケーソン躯体１内に位置する地盤２に載置される架台１１と、架台１１に支持されて架台１１に対して水平旋回可能な本体部１２と、本体部１２の一側に上部が枢支されてこの上部から下方に延び、かつ、伸縮可能であるアーム１３と、アーム１３の上部の枢支軸Ｑを中心としてアーム１３を傾動させる傾動装置１５と、アーム１３の下端部１３ｃに設けられて地盤２を水中掘削する地盤掘削部１４であって、本体部１２、アーム１３、及び傾動装置１５の作動によって、ケーソン躯体１の刃口部１ｂの下方の地盤２を平面視で扇形状に水中掘削可能な地盤掘削部１４と、を備える。【選択図】図５
EXCAVATOR, AND GROUND EXCAVATION METHOD
To excavate a ground below a cutting edge part of a caisson skeleton with a simple configuration.SOLUTION: An excavator 10 extends in a vertical direction and is immersed into a ground, and carries out the underwater excavation of a ground 2 below a cutting edge part 1b of a cylindrical caisson skeleton 1 storing water therein. The excavator 10 includes: a trestle 11 mounted on the ground 2 positioned in the caisson skeleton in plan view; a body part 12 which is supported on the trestle 11 and is horizontally swingable to the trestle 11; an arm 13 which has an upper part pivotally supported on one side of the body part 12, extends downward from the upper part, and is expandable/contractible; a tilting device 15 which tilts the arm 13 around a pivoting shaft Q above the arm 13; and a ground excavation part 14 which is provided on a lower end 13c of the arm 13, and carries out the underwater excavation of the ground 2, and can carry out the underwater excavation of the ground 2 below the cutting edge part 1b of the caisson skeleton 1 in a fan shape in plan view by actuation of the body part 12, the arm 13 and the tilting device 15.SELECTED DRAWING: Figure 5
【課題】簡易な構成でケーソン躯体の刃口部の下方の地盤を掘削する。【解決手段】掘削機１０は、上下方向に延びて地中に沈設され、かつ、内部に水が貯留されている筒状のケーソン躯体１の刃口部１ｂの下方の地盤２を水中掘削するものである。掘削機１０は、平面視でケーソン躯体１内に位置する地盤２に載置される架台１１と、架台１１に支持されて架台１１に対して水平旋回可能な本体部１２と、本体部１２の一側に上部が枢支されてこの上部から下方に延び、かつ、伸縮可能であるアーム１３と、アーム１３の上部の枢支軸Ｑを中心としてアーム１３を傾動させる傾動装置１５と、アーム１３の下端部１３ｃに設けられて地盤２を水中掘削する地盤掘削部１４であって、本体部１２、アーム１３、及び傾動装置１５の作動によって、ケーソン躯体１の刃口部１ｂの下方の地盤２を平面視で扇形状に水中掘削可能な地盤掘削部１４と、を備える。【選択図】図５
EXCAVATOR, AND GROUND EXCAVATION METHOD
掘削機、及び地盤掘削方法
OGURA TSUYOSHI (author) / NAKANO KATSUHIRO (author) / KAMEI YOSHIYUKI (author) / YOSHIKAWA OSAMU (author) / KANAMARU HIROKI (author) / MORIWAKA YOSHIHIKO (author) / SAKANASHI TOSHIO (author) / SAKAMOTO MAMORU (author) / HAMADA YOSHIYUKI (author) / SAITO SHIGERU (author)
2023-06-01
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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