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Norihisa Nakahara
Norihisa Nakahara
Geology
Mechanical engineering
Percussion
Excavation
Mining engineering
3
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Development of a system for safely measuring the strike and dip of the discontinuous surface of the tunnel face and field trial
2020
Norihisa Nakahara
Takahito Funahashi
Toshihiro Koyama
Uda Makoto
Hiroshi Miyahara
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Preliminary investigation and tunnel excavation in small cover with soft ground is distributed just above the tunnel
2020
Takahito Funahashi
Hiroki Uehara
Mikio Takahashi
Manabu akatsuka
Tokio Noguchi
Norihisa Nakahara
Uda Makoto
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Development and Field Application of a Rotary Percussion-Based Reverse Circulation Horizontal Core Boring System
2019
Toshihiro Koyama
Takahito Funahashi
Yoshiyuki Uemura
Norihisa Nakahara
Makoto Uda
Daisuke Imamura
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