Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CONNECTION STRUCTURE OF EXCAVATION MEMBER
PROBLEM TO BE SOLVED: To prevent sediment from flowing in from a joint between an excavation member and a pipe body part in excavation work.SOLUTION: An excavation member 1 comprises a cylindrical base body 2 closed at the lower end, and a rotary blade 3 for excavating soil by rotating around the axis together with this base body 2 provided on an outer peripheral surface of this base body 2. A columnar projection part 4 is also provided on the outer peripheral surface while projecting outward in its radial direction. A pipe body part 5 comprises a cylindrical pipe body 6, and a downward projecting abutting part 7 provided in a lower end part of this pipe body 6. This abutting part 7 is constituted of a first extending part 8a and a second extending part 8b forming an L shape by mutually crossing, and an abutting surface 9 having an oblique upward plane normal line is formed in an internal angle constituted by crossing both the extending parts 8a and 8b. The projection part 4 is allowed to abut on this abutting surface 9 to make abutting force act, the excavation member 1 is thereby pressed to the pipe body part 5, and a clearance g is generated in a joint between the excavation member 1 and the pipe body part 5, thereby preventing sediment from flowing in from this clearance g.
【課題】掘削作業中に掘削部材と管体部の継ぎ目から土砂等が流入するのを防止すること。【解決手段】掘削部材１は、下端が閉塞した筒状の基体２を有し、この基体２の外周面に、この基体２とともに軸周りに回転して土壌を掘削する回転羽根３を設ける。さらに、前記外周面にその径方向外向きに突出して円柱状の突起部４を設ける。管体部５は、筒状の管本体６を有し、この管本体６の下端部に、下向きに突出する当接部７を設ける。この当接部７は、互いに交差してＬ字形をなす第一延伸部８ａと第二延伸部８ｂとから構成され、両延伸部８ａ、８ｂが交差して構成される内角に斜め上向きの面法線を有する当接面９を形成する。この当接面９に突起部４を当接して当接力を作用させることにより、掘削部材１を管体部５に押し付け、掘削部材１と管体部５の継ぎ目に隙間ｇが生じてこの隙間ｇから土砂等が流入するのを防止する。【選択図】図１
CONNECTION STRUCTURE OF EXCAVATION MEMBER
PROBLEM TO BE SOLVED: To prevent sediment from flowing in from a joint between an excavation member and a pipe body part in excavation work.SOLUTION: An excavation member 1 comprises a cylindrical base body 2 closed at the lower end, and a rotary blade 3 for excavating soil by rotating around the axis together with this base body 2 provided on an outer peripheral surface of this base body 2. A columnar projection part 4 is also provided on the outer peripheral surface while projecting outward in its radial direction. A pipe body part 5 comprises a cylindrical pipe body 6, and a downward projecting abutting part 7 provided in a lower end part of this pipe body 6. This abutting part 7 is constituted of a first extending part 8a and a second extending part 8b forming an L shape by mutually crossing, and an abutting surface 9 having an oblique upward plane normal line is formed in an internal angle constituted by crossing both the extending parts 8a and 8b. The projection part 4 is allowed to abut on this abutting surface 9 to make abutting force act, the excavation member 1 is thereby pressed to the pipe body part 5, and a clearance g is generated in a joint between the excavation member 1 and the pipe body part 5, thereby preventing sediment from flowing in from this clearance g.
【課題】掘削作業中に掘削部材と管体部の継ぎ目から土砂等が流入するのを防止すること。【解決手段】掘削部材１は、下端が閉塞した筒状の基体２を有し、この基体２の外周面に、この基体２とともに軸周りに回転して土壌を掘削する回転羽根３を設ける。さらに、前記外周面にその径方向外向きに突出して円柱状の突起部４を設ける。管体部５は、筒状の管本体６を有し、この管本体６の下端部に、下向きに突出する当接部７を設ける。この当接部７は、互いに交差してＬ字形をなす第一延伸部８ａと第二延伸部８ｂとから構成され、両延伸部８ａ、８ｂが交差して構成される内角に斜め上向きの面法線を有する当接面９を形成する。この当接面９に突起部４を当接して当接力を作用させることにより、掘削部材１を管体部５に押し付け、掘削部材１と管体部５の継ぎ目に隙間ｇが生じてこの隙間ｇから土砂等が流入するのを防止する。【選択図】図１
CONNECTION STRUCTURE OF EXCAVATION MEMBER
掘削部材の接続構造
KITAMURA KEISUKE (Autor:in) / YAMASHITA KOJI (Autor:in) / HATSUYAMA TSUKASA (Autor:in)
12.11.2015
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen