2016 Fiscal Year Final Research Report
DEVELOPMENT OF UNMANNED CONSTRUCTION TECHNIQUE FOR IMPROVED EXCAVATING EFFICIENCY BY USE OF AN EDGE EXCAVATION METHOD
| Project/Area Number |
26420446
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Civil engineering materials/Construction/Construction management
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| Research Institution | Kure National College of Technology |
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Principal Investigator |
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| Research Collaborator |
ODA Noboru
MURO Tatsuro
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 剥離掘削 / 端面掘削 / センターカッタビット |
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| Outline of Final Research Achievements |
A use of edge excavation method was considered to be more effective than use of the plane excavation method. Earlier studies has been proposed that the edge excavation method is efficient compared to the plane excavation method. The purpose of this study was to develop a rock excavator attached of the backhoe by use of a multistage edge excavation method. We carried out experiments with the model excavator to find out efficiency and force acting on the rock excavator. The experiments using a “model excavator” showed that the accumulated sediment caused the decrease of the excavation efficiency. By changing position of the model excavator from vertical to horizontal settings, removal of the excess sediment was remarkably improved. This improvement provides the following benefits: 1) increase of the excavation speed, 2) decrease of the torque, 3) increase of the overall excavation efficiency.
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| Free Research Field |
建設施工
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