土留め(2)

[III-183] An application of non-destructive testing method using vibration for evaluating residual tensile force of ground anchors to a wedge fixing type anchor

〇Hideki Saito¹, Mitsuru Yamazaki², Atsushi Yashima³, Kazuki Nawa⁴, Kyosuke Kojima⁵, Takanori Ogahara¹ (1.Oyo, 2.Central Nippon Highway Engineering Nagoya, 3.Gifu University, 4.Nagoya City, 5.JR Tokai)

Keywords:ground anchor, residual tensile force, resonant frequency, sweep, spectrogram, wedge fixing type