ROCK BOLT CONSTRUCTION DEVICE AND CONSTRUCTION METHOD

To efficiently perform driving work when driving a pressurized fluid expansion type rock bolt with a construction machine.SOLUTION: A rock bolt construction device comprises a construction machine, a guide provided on a front end side of a boom of the construction machine, pressing means provided mo...

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Bibliographic Details
Main Authors MATSUO TSUTOMU, AZEDAKA SHINICHI, TANAKA YUSUKE, AOKI KOICHI, SUGIMOTO KENICHI, TEZUKA HITOSHI, MANO SHINJI
Format Patent
LanguageEnglish
Japanese
Published 25.04.2024
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Summary:To efficiently perform driving work when driving a pressurized fluid expansion type rock bolt with a construction machine.SOLUTION: A rock bolt construction device comprises a construction machine, a guide provided on a front end side of a boom of the construction machine, pressing means provided movably on the guide, a mounting portion 50 provided on the front end side of the pressing means, and attachment means 100 for attaching a rear end side of a pressurized fluid expansion type rock bolt to the attachment portion. The attachment portion includes a cylindrical recess 51 with an open front end. The cylindrical recess is equipped with a fluid pressure supply mechanism (water injection mechanism 52) on an inner peripheral surface of the cylinder. The fluid pressure supply mechanism includes front annular sealing means, rear annular sealing means, and an annular fluid pressure supply section having a fluid supply path for supplying a predetermined fluid pressure necessary for expanding the rock bolt. The attachment means is means for attaching the rear end side of the rock bolt to the cylindrical recess of the attachment portion such that the center line of the rock bolt and the center line of the cylinder of the cylindrical recess coincide.SELECTED DRAWING: Figure 3 【課題】建設機械で加圧流体膨張式のロックボルトの打設作業を行う場合において、打設作業を効率的に行えるようにする。【解決手段】ロックボルトの施工装置は、建設機械と、建設機械のブームの前端側に設けられたガイドと、ガイド上を移動可能に設けられた押圧手段と、押圧手段の前端側に設けられた取付部５０と、加圧流体膨張式のロックボルトの後端側を取付部に取付ける取付手段１００とを備え、取付部は、前端開放の円筒状凹部５１を備え、円筒状凹部は、円筒の内周面に流体圧供給機構（注水機構５２）を備え、流体圧供給機構は、前側円環状密封手段及び後側円環状密封手段と、ロックボルトを膨張させるために必要な所定の流体圧を供給するための流体供給路を有した円環状流体圧供給部とを備え、取付手段は、ロックボルトの中心線と円筒状凹部の円筒の中心線とが一致するように、ロックボルトの後端側を取付部の円筒状凹部に取付ける手段である。【選択図】図３
Bibliography:Application Number: JP20220164488