Abstract
Although pile driver overturning accidents at construction site are not frequent, most leads to serious disasters. The main cause of accidents is uneven settlement of the ground. To prevent this, related guidelines such as KOSHA-C-101-2014, KOSH-A-GUIDE-71-2012, Occupational Safety and Health Standards, and NCS stipulate the installation of steel plates over ground. However, since the required steel plate thickness considering the self-weight of pile drivers and the underlying ground condition is not quantitatively presented, it is randomly applied in the field. In this study, the required minimum steel plate thickness was analyzed based on a numerical analysis (Plaxis 2D). Settlements and soil failure were calculated according to the different type of soils (sand, clay), load distribution and steel plate thickness (10mm, 20mm, 30mm, 40mm). Under all conditions, 10mm steel plate causes soil collapse. From thickness 20mm, the ground uneven subsidence is within 2° of the allowable leader angle.
| Translated title of the contribution | Minimum Thickness of Temporary Steel Plate to Prevent Pile Driver Overturning |
|---|---|
| Original language | Korean |
| Pages (from-to) | 5-10 |
| Number of pages | 6 |
| Journal | 한국지반환경공학회 논문집 |
| Volume | 21 |
| Issue number | 11 |
| DOIs | |
| State | Published - 2020 |