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VolF11Šª
”NF 2002”N
•ÅF 1987-1990•Å
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ƒ^ƒCƒgƒ‹i˜ajF RTK-GPS ‚ð—p‚¢‚½’n”Õ‘å•Ïó‚̃ŠƒAƒ‹ƒ^ƒCƒ€Œv‘ª‚ÉŠÖ‚·‚éŠî‘b“IŒ¤‹†
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ƒL[ƒ[ƒhi˜ajF RTK-GPSC’n”Õ•ÏóC‰tó‰»C‰æ‘œ‰ðÍ
ŒfÚŽGŽi‰pjF THE EARTHQUAKE ENGINEERING SYMPOSIUM PROCEEDINGS
’˜ŽÒi‰pjF Kenji Oguni, Muneo Hori, Kazuhiro Mochiduki, Takahiro Sugano
ƒ^ƒCƒgƒ‹i‰pjF STUDY ON REAL-TIME MEASUREME OF LARGE GROUN DEFORMATION WITH AID OF RTK-GPS
´˜^i‰pjF This paper studies the application of the RTK-GPS to real-time measurement of large ground deformation during a large earthquake. The RTK-GPS can measure relative movement of one receiver with higher accuracy than a single receiver. In a large-scaled ground deformation experiment carried by PARIS, the following three were examined: 1) the robustness; 2) the accuracy at static state; and 3) the accuracy at dynamic state. The accuracy of dynamic and static state is compared with the automatic-laser-traced total station measurement and the image analysis of video records, respectively. Major findings are 1) the robustness is at an acceptable level; 2) the static state accuracy is around 1[cm], which is enough to monitor the large ground deformation,; and 3) the dynamic state accuracy is good to measure slow but large deformation
ƒL[ƒ[ƒhi‰pjF RTK-GPS, Large ground deformation, Liquefaction, Image analysis
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