Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
METHOD OF CONSTRUCTING ROCK BOLT STRUCTURE AND FIXING MATERIAL INJECTION JIG
To adjust a timing of pulling out an outer tube for a fixing material injection work, fill a fixing material in an appropriate state, and improve a construction efficiency of a rock bolt structure.SOLUTION: A method of constructing a rock bolt structure in which a bit 3 is provided at a tip of a rock bolt main body 2 having a hollow portion 21, and a self-drilling rock bolt 1 around which an outer tube 4 is provided is struck on a natural ground 100 to construct a rock bolt structure comprises a first step of flow-path-connecting a drilling water supply passage 131 of a drilling machine 10 and the hollow portion 21 of the rock bolt main body 2 with a fixing material injection jig 6 and coupling a water swivel 13 of the drilling machine 10 and the outer tube 4 via the fixing material injection jig 6 so that the outer tube 4 can be pulled out by the drilling machine 10, and a second step of injecting a fixing material F through the drilling water supply passage 131 and the hollow portion 21, discharging the fixing material F from a discharge hole 31 of the bit 3, retracting the water swivel 13 and pulling out the outer tube 4 struck on the natural ground 100.SELECTED DRAWING: Figure 4
【課題】定着材の注入作業に対して外管の引抜のタイミングを調整でき、定着材を適切な状態で充填できると共に、ロックボルト構造の施工効率を高めることができる。【解決手段】中空部２１を有するロックボルト本体２の先端にビット３が設けられ、その外側に外管４が周設される自穿孔ロックボルト１を地山１００に打設してロックボルト構造を構築するロックボルト構造の構築方法であり、定着材注入治具６で削孔機１０の削孔水供給路１３１とロックボルト本体２の中空部２１を流路接続し、且つ削孔機１０で外管４を引抜可能に定着材注入治具６を介して削孔機１０のウォータースイベル１３と外管４を連結する第１工程と、削孔水供給路１３１と中空部２１を通して定着材Ｆを注入し、定着材Ｆをビット３の吐出孔３１から吐出させると共に、ウォータースイベル１３を後退させて地山１００に打設された外管４を引き抜く第２工程を備える。【選択図】図４
METHOD OF CONSTRUCTING ROCK BOLT STRUCTURE AND FIXING MATERIAL INJECTION JIG
To adjust a timing of pulling out an outer tube for a fixing material injection work, fill a fixing material in an appropriate state, and improve a construction efficiency of a rock bolt structure.SOLUTION: A method of constructing a rock bolt structure in which a bit 3 is provided at a tip of a rock bolt main body 2 having a hollow portion 21, and a self-drilling rock bolt 1 around which an outer tube 4 is provided is struck on a natural ground 100 to construct a rock bolt structure comprises a first step of flow-path-connecting a drilling water supply passage 131 of a drilling machine 10 and the hollow portion 21 of the rock bolt main body 2 with a fixing material injection jig 6 and coupling a water swivel 13 of the drilling machine 10 and the outer tube 4 via the fixing material injection jig 6 so that the outer tube 4 can be pulled out by the drilling machine 10, and a second step of injecting a fixing material F through the drilling water supply passage 131 and the hollow portion 21, discharging the fixing material F from a discharge hole 31 of the bit 3, retracting the water swivel 13 and pulling out the outer tube 4 struck on the natural ground 100.SELECTED DRAWING: Figure 4
【課題】定着材の注入作業に対して外管の引抜のタイミングを調整でき、定着材を適切な状態で充填できると共に、ロックボルト構造の施工効率を高めることができる。【解決手段】中空部２１を有するロックボルト本体２の先端にビット３が設けられ、その外側に外管４が周設される自穿孔ロックボルト１を地山１００に打設してロックボルト構造を構築するロックボルト構造の構築方法であり、定着材注入治具６で削孔機１０の削孔水供給路１３１とロックボルト本体２の中空部２１を流路接続し、且つ削孔機１０で外管４を引抜可能に定着材注入治具６を介して削孔機１０のウォータースイベル１３と外管４を連結する第１工程と、削孔水供給路１３１と中空部２１を通して定着材Ｆを注入し、定着材Ｆをビット３の吐出孔３１から吐出させると共に、ウォータースイベル１３を後退させて地山１００に打設された外管４を引き抜く第２工程を備える。【選択図】図４
METHOD OF CONSTRUCTING ROCK BOLT STRUCTURE AND FIXING MATERIAL INJECTION JIG
ロックボルト構造の構築方法及び定着材注入治具
OKUNO MINORU (Autor:in) / MUTO HIROYUKI (Autor:in)
11.06.2020
Patent
Elektronische Ressource
Japanisch
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