River
River renovation work (securement of flow volume by excavating the river floor)
Suginami, Tokyo, Japan
Features
・Press-in steel tubular piles with pile tip bits into sand and gravel layer (Equivalent N-value = 107)
・Construction restricting feeling of high-handedness and vibration/noise to minimum in a crowded residential area
・Reduction in construction period, using two sets of the Non-staging system
| Construction machine used | GYRO PILER™ (GRV1026), CLAMP CRANE™ (CB4-1), PILE RUNNER™ (TB4) |
|---|---|
| Type/Dimension | 169 steel tubular piles, dia.= 1,000 mm, t = 10 -13 mm, L = 16.0 – 18.5 m |
Construction section
Soil boring log
International Press-in Association (IPA) The Editorial Committee , Press-in retaining structures: a handbook First edition 2016
*Editing the image with permission obtained.