I completed a job on a dam for the ACOE a few years ago using both methods to analyze the fractures in the concrete from AAR. In the end the only data that was used was the camera images and subsequent rose diagrams. It was also easier to place the camera in the hole one time to get the...
GrumpyG
One of the first things taught to young engineers working in deep foundations in this part of the country is NOT to design caissons in karstic terrain (PA, TN, FL). The reason for this is the pinnacled rock and voids that are encountered that have been mentioned above. These problems...