There were no ramps. Not only because it would probably be impossible to build these with ramps but there is strong evidence that there were no ramps. People have been looking for what never existed.
SC: I am inclined to agree with you. However, IF orthodoxy continues to hold onto the single, long ramp theory then clearly the most obvious place to extend such a ramp would be to the west of G1 since there were natural obstacles on the other flanks (the escarpment, the Nile and in the south the quarries). But if Khufu instructed the western cemetery to be built 7 years into his reign then he would have had to take down the ramp long before his pyramid was completed.
Or perhaps what this actually might indicate is that G1 was infact extant BEFORE Khufu?? Why else would Khufu build the western cemetery if the GP was still being built? It must have already been complete 7 years into his reign because he closed off the only logicall place to have placed a long ramp.
Bottom line - either the long, single ramp theory is wrong or Khufu did not construct the Great Pyramid. I don't think the Egyptologists can have this one both ways.