The foundation of one site that was constructed with 500 PHC stake (100ton/stake) with dimension of 42m in depth, 120m in length (7.5m between the pillars) was settling. The foundation of this storage was very solid with N=100/30 on the 5-10m area, but the 30m below had N=15-30/03. The foundation was reinforced with load factor of 50ton (216x8.2) stake, pressurizing each with 100 ton. The stake was 35-45m indented. the JP indented stake and all of the indented stake's strengths are automatically measured by the pressurized gauge during indentation process, and thus does not need a separate load test. However, we completed a load test on the first indented stake and found that it was appropriate with 50 ton of load.
ø216×8t 100 ton pressurization, 40m indentation, 50ton weight load confirmation