By ramp theory, do you mean the straight approach, or the spiral approach, or the multiple ramp and ledge, or......
http://www.touregypt.net/featurestor...ramidlifts.htm
I must say
Do you see the outlined compressed ground footprint surrounding the pyramid to the southwest of Khufu's rockpile?(The pyramid at the top of the photo is Khufu's.)
That ground was compacted by something HEAVY.
The pyramid in question was surrounded by a massive cofferdammed ramp that wrapped it.
I've already described that the ramp would be plated with a smooth planked paving and that on top of that would be skid tracks for a slick friction sled train of blocks.
Anybody saying that the Egyptians would leapfrog logs as rollers to convey a sled up a ramp has never handled logs or a drag weight under load. The only way to keep such a load moving in a straight line using rollers is a little invention called a wheel and axle. Otherwise you need guide rails as the load tends to acquire harmonic moment and skid out either left or right depending which side of the drag team is the weak side during the heave-usually the left side as you face load front.(This is true for machines too, so don't blame the men on the rope!)
Another problem is how do drop those logs in across the tow lines? Logs are not the answer. Skids are. If you do it right and you plank the road with hafl timbers herringboned fashion; you dry drag your load up a 15% grade with the manpower specified, with minimum distance intervals, minimum sized drag teams and little risk of accident.
