VAD
Geotechnical
- Feb 23, 2003
- 390
Determining the depth of embedment of a pile (toe elevation)is one of the prerequisites for calculating its load capacity. How do you determine this depth for a driven steel pile?.
1. Do you undertake test pile driving at the site before design?.
2. Do you assess the depth from the subsurface characteristics and past experience? What field testing provides this confidence SPT, Cone Penetrometer etc? Does lab testing play a role. If so, what information is relied on.
3. Do you invoke the pile hammer characteristics in estimating this design depth?. How is this utilized in your design.
4. How do you concieve the type of pile to be recommended i.e H-section, open end pipe, closed end pipe etc?.
5. How far off have you been in your estimate of depth of embedment?.
6. How do you ensure that your design depth will be achieved in the field?.
7. If the design depth is not achieved what do you do?.
This question is general in nature in relation to design and constructability of driven piles.
1. Do you undertake test pile driving at the site before design?.
2. Do you assess the depth from the subsurface characteristics and past experience? What field testing provides this confidence SPT, Cone Penetrometer etc? Does lab testing play a role. If so, what information is relied on.
3. Do you invoke the pile hammer characteristics in estimating this design depth?. How is this utilized in your design.
4. How do you concieve the type of pile to be recommended i.e H-section, open end pipe, closed end pipe etc?.
5. How far off have you been in your estimate of depth of embedment?.
6. How do you ensure that your design depth will be achieved in the field?.
7. If the design depth is not achieved what do you do?.
This question is general in nature in relation to design and constructability of driven piles.