Construction of the Pyramids: Ramps

Sorry, this is the default theory, is it not?
Is someone suggesting they didn't spiral the ramps?
Everybody's pet theory is out to play, I think. However, in that great docu, "10,000 BC", they definitely did it the stupid way, straight up. So, case closed.
Watch 40 seconds of model demonstration video

Three important documents in chronological order are, firstly, circa 2700 BC Pharaoh Sneferu's "Palermo Stone" where we read forty ship loads of timber, imported from Lebanon, for temple building. Translate "temple" to "Pyramid" and the timber was required for the construction process.

Secondly, circa 590 BC priest and scribe Ezekiel records statements made by the ancestors of Hebrew Pyramid builders who speak of wooden" wheels within wheels" machines having four rims that were high and awesome, with eyes all around.

Thirdly, circa 450 BC Herodotus walks around The Great Pyramid and inquires as to how it was built. Priests informed Herodotus that machines formed of short wooden planks were used to raise Pyramid blocks tier by tier.

The simple step-walking machines are now understood as "four-lobe pinion-pulleys" and operated innately with a mechanical advantage of 2.8 (MA=2.8) which means a 2500kg Pyramid block requires an input effort of 900kg to raise it. The machines operated independently on all four sides of the Pyramid, progressively using the Pyramid to build the Pyramid to final completion. White Tura limestone facing blocks were hoisted and installed from top to bottom. These three documents exist and provide congruency of evidence of the ancient Egyptian four-lobe pinion-pulleys which are the earliest known prototype of "rack and pinion" mechanical engineering technology.
I think what is interesting is say in the case of the great pyramid if they worked 24/7 for 20 years we find that approx 14 blocks need to be quarried transported and laid each and every hour for that 20 year period...or if forty years 7 an hour 24/7.
Busy busy busy☺
Or are my numbers wrong.
Xelasnave.1947, the image below concerns mechanical engineering terminology and estimated construction logistics.
sideshowbob, Egyptian Pyramids were part of a "Temple Complex" that was enclosed by walls. Pharaoh Sneferu imported an estimated 6,000 tons of Lebanese Cedar for "Temple Building". Major civic buildings are of stone construction, thus the timber was for the construction process. The import of the timber was just prior to the construction of Giza Pyramids. Sneferu was preparing a massive construction project for his son, Khufu.
To answer your second question, read "Ezekiel decoded" at my website. Search: "haitheory", bearing in mind that many people were involved with many tasks, witnessed the construction, and handed down the knowledge by 'word of mouth' until priest and scribe Ezekiel convened a gathering of Hebrew exiles around 590 BC and documented what he was told.
origin, evidence exists in what Ezekiel documented circa 590 BC and throughout "Ezekiel decoded" not one original word has been altered.
In Ezekiel Chapter One, Pharaoh Khufu speaks to the workforce from the entrance to The Great Pyramid.