A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
AUGER DEVICE AND PILE PRESS-IN MACHINE
PROBLEM TO BE SOLVED: To provide an auger device having an auger screw disposed in a casing capable of preventing twist of an auger shaft occurring when excavating the ground without increasing the size of the casing while ensuring the excavation capacity.SOLUTION: An auger device 1 includes: an auger screw 2 for excavating the ground; and a cylindrical casing 3 enclosing the auger screw 2, the auger device being attached to a pile press-in machine 20. The auger device is configured so that the distance W1 between the auger shaft 2a as the shaft of the auger screw 2 and the inner surface of the casing 3 and the inner diameter φD1 of the casing 3 satisfy the following equation (1) and equation (2): 0.26≤W1/(φD1/2)≤0.465...(1); 40≤W1...(2).SELECTED DRAWING: Figure 2
【課題】ケーシング内にオーガスクリューが配置されたオーガ装置において、ケーシングを太くすることなく、地盤の掘削時に生じるオーガ軸のねじれの抑制と掘削能力を両立させる。【解決手段】地盤を掘削するオーガスクリュー２と、オーガスクリュー２を囲う筒状のケーシング３とを備えた、杭圧入機２０に取り付けられるオーガ装置１において、オーガスクリュー２の軸であるオーガ軸２ａとケーシング３の内面との距離Ｗ１、およびケーシング３の内径φＤ１が下記（１）式および（２）式を満たすように構成されている。０．２６≦Ｗ１／（φＤ１／２）≦０．４６５・・・（１）４０≦Ｗ１・・・（２）【選択図】図２
AUGER DEVICE AND PILE PRESS-IN MACHINE
PROBLEM TO BE SOLVED: To provide an auger device having an auger screw disposed in a casing capable of preventing twist of an auger shaft occurring when excavating the ground without increasing the size of the casing while ensuring the excavation capacity.SOLUTION: An auger device 1 includes: an auger screw 2 for excavating the ground; and a cylindrical casing 3 enclosing the auger screw 2, the auger device being attached to a pile press-in machine 20. The auger device is configured so that the distance W1 between the auger shaft 2a as the shaft of the auger screw 2 and the inner surface of the casing 3 and the inner diameter φD1 of the casing 3 satisfy the following equation (1) and equation (2): 0.26≤W1/(φD1/2)≤0.465...(1); 40≤W1...(2).SELECTED DRAWING: Figure 2
【課題】ケーシング内にオーガスクリューが配置されたオーガ装置において、ケーシングを太くすることなく、地盤の掘削時に生じるオーガ軸のねじれの抑制と掘削能力を両立させる。【解決手段】地盤を掘削するオーガスクリュー２と、オーガスクリュー２を囲う筒状のケーシング３とを備えた、杭圧入機２０に取り付けられるオーガ装置１において、オーガスクリュー２の軸であるオーガ軸２ａとケーシング３の内面との距離Ｗ１、およびケーシング３の内径φＤ１が下記（１）式および（２）式を満たすように構成されている。０．２６≦Ｗ１／（φＤ１／２）≦０．４６５・・・（１）４０≦Ｗ１・・・（２）【選択図】図２
AUGER DEVICE AND PILE PRESS-IN MACHINE
オーガ装置および杭圧入機
KITAMURA MORIO (author) / TSUZUKI YOSHIO (author)
2018-11-29
Patent
Electronic Resource
Japanese