When would one be used rather than the other? Say the depth to rock is 100 ft (H) and the footing is 25 ft wide (B), I would use the Young's Modulus. If B=100 ft and H=25 ft, I would use the constrained modulus. Does anyone have any references or guidance when to choose between the two when...
Does anybody know how to estimate a vertical spring constant in kips per inch for the tip of a micropile embedded a couple of ft into very hard dolomite?
Can somebody tell me what the upper limit weight of a 120 ft tall, 4 legged, metal lattice type light tower is? We have to pick it up and set it down because we are digging next to it (I am a geotechnical engineer).
TX
Chris Bosy
I am a geotechnical engineer so this area is way new to me. Can you tell me roughly what the weight of a 120 ft tall 4 legged light tower might be? We have to hoist it with a crane and set it down because we are digging next to it. Are they strong enough to grab say 2/3 of the way up and then...
When bearing on shale, should the bearing area be the projected overall area of the H-pile or the area of the steel or shoe? I know it depends on whether a plug forms but unfortunately it is not possible to directly view this. The shale is not considered friable with N-values typically in the...
This is more a poll then anything else. The automatic hammer delivers about 90% of the theoretical enegy while the old cathead driven hammer delivers about 60%. Several papers now say to correct the N Values by multipying them by anywhere from 1.25 to 1.5. I personally use 1.4. What are are...
