Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
MULTI-SHAFT EXCAVATION DEVICE
To solve the problems in which an excavation hole of the sliding contact part of a sliding contact body collapses because of the structure in which conventionally an excavation shaft is supported by the sliding contact body that slides into the wall surface of excavation holes regardless of ground properties of the work site, and a load is applied to part or all of multiple excavation shafts in the front-back and left-right sides, or the tip of the excavation head comes into contact with foreign matter such as rocks, causing the multiple excavation shafts to bend forward, backward or sideways, and excavation holes bend.SOLUTION: A multi-shaft excavation device is structured as such that multiple excavation shafts 7 driven and rotated by a drive device 5 mounted freely moveably up and down on a leader mast 3 provided on a base machine 2 installed on the ground are provided in parallel with the drive device 5, a pair of outer excavation shafts 7B are provided on both sides of a central excavation shaft 7A in the center among the group of multiple shafts 7, among the group of multiple excavation shafts 7 the central excavation shaft 7A has higher rigidity than the outer excavation shaft 7B thanks to a rigidity improvement configuration 20.SELECTED DRAWING: Figure 2
【課題】従来、作業現場の地盤の性状とは無関係に、掘削軸を、掘削孔の壁面に摺接する摺接体により支持する構成のため、摺接体の摺接する部分の掘削孔が崩れるという課題がある。また、複数の掘削軸の一部あるいは全体に前後左右に荷重が掛かったり、または、掘削ヘッド先端が岩などの異物に接触して、複数の掘削軸が前後左右に曲がって、掘削孔が曲がってしまうという課題がある。【解決手段】地上に設置されたベースマシン２に設けられたリーダーマスト３に昇降自在に取付けた駆動装置５により駆動回転する掘削軸７を駆動装置５に並列状態で複数設け、この複数の掘削軸７群のうち中央の中央掘削軸７Ａの両側に一対の外側掘削軸７Ｂを設け、前記複数の掘削軸７群のうち、中央掘削軸７Ａを外側掘削軸７Ｂに比し剛性向上構成２０により剛性を高くして構成した多軸掘削装置。【選択図】図２
MULTI-SHAFT EXCAVATION DEVICE
To solve the problems in which an excavation hole of the sliding contact part of a sliding contact body collapses because of the structure in which conventionally an excavation shaft is supported by the sliding contact body that slides into the wall surface of excavation holes regardless of ground properties of the work site, and a load is applied to part or all of multiple excavation shafts in the front-back and left-right sides, or the tip of the excavation head comes into contact with foreign matter such as rocks, causing the multiple excavation shafts to bend forward, backward or sideways, and excavation holes bend.SOLUTION: A multi-shaft excavation device is structured as such that multiple excavation shafts 7 driven and rotated by a drive device 5 mounted freely moveably up and down on a leader mast 3 provided on a base machine 2 installed on the ground are provided in parallel with the drive device 5, a pair of outer excavation shafts 7B are provided on both sides of a central excavation shaft 7A in the center among the group of multiple shafts 7, among the group of multiple excavation shafts 7 the central excavation shaft 7A has higher rigidity than the outer excavation shaft 7B thanks to a rigidity improvement configuration 20.SELECTED DRAWING: Figure 2
【課題】従来、作業現場の地盤の性状とは無関係に、掘削軸を、掘削孔の壁面に摺接する摺接体により支持する構成のため、摺接体の摺接する部分の掘削孔が崩れるという課題がある。また、複数の掘削軸の一部あるいは全体に前後左右に荷重が掛かったり、または、掘削ヘッド先端が岩などの異物に接触して、複数の掘削軸が前後左右に曲がって、掘削孔が曲がってしまうという課題がある。【解決手段】地上に設置されたベースマシン２に設けられたリーダーマスト３に昇降自在に取付けた駆動装置５により駆動回転する掘削軸７を駆動装置５に並列状態で複数設け、この複数の掘削軸７群のうち中央の中央掘削軸７Ａの両側に一対の外側掘削軸７Ｂを設け、前記複数の掘削軸７群のうち、中央掘削軸７Ａを外側掘削軸７Ｂに比し剛性向上構成２０により剛性を高くして構成した多軸掘削装置。【選択図】図２
MULTI-SHAFT EXCAVATION DEVICE
多軸掘削装置
TANAKA YUSUKE (Autor:in) / KASHIMA KAZUHIRO (Autor:in)
25.03.2021
Patent
Elektronische Ressource
Japanisch
IPC:
E02F
Baggern
,
DREDGING
Superconducting Super Collider Shaft Excavation
| British Library Conference Proceedings | 1993