Get you up to speed: New study reveals spiral ramp system may explain construction of Egypt’s Great Pyramid
A study published in Nature proposes that the Pyramid of Khufu was built using a multi-channel ramp system integrated into the structure itself. This theory suggests that blocks could have been placed every four to six minutes, allowing for a total construction time of approximately 20 to 27 years.
A new study published in Nature proposes that the Great Pyramid of Khufu may have been constructed using a multi-channel system of ramps integrated into its edges, enabling workers to place stone blocks every four to six minutes. Vicente Luis Rosell Roig created a 3D model simulating this construction method, suggesting that the total timeline for building the pyramid could fit within the historical estimates of 20 to 27 years.
The study proposes that a multi-channel system of ramps, built into the Great Pyramid itself, would have allowed workers to place blocks rapidly, achieving the construction within the time frame of Pharaoh Khufu’s reign. Additionally, the framework developed by Vicente Luis Rosell Roig could be applied to investigate other ancient structures, revealing the methods employed by ancient builders.
Secret of how Egypt’s Great Pyramid was built may finally have been solved | News World

The construction of Egypt’s Great Pyramid has been long debated (Picture: Getty)
For decades, experts have struggled to explain how Egypt’s Great Pyramid was built — but now a new study claims to have found an answer.
The construction would have required ancient workers to lift and place millions of huge stone (some weighing up to 15 tons) without using modern machinery, sparking countless theories.
However, a new study published in Nature suggests that a multi-channel system of ramps, built directly into the edges of the pyramid itself, could be the solution to this architectural marvel.
The paper proposes that the structure in Giza, also known as the Pyramid of Khufu, could have been built by a spiral ramp system that was covered up and hidden as each new layer was added.

It suggests a multi-channel system of ramps was used
Not only does this new model shed light on the possible logistics behind the build, but also estimates how long the construction may have taken.
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To complete the structure within the pharaoh Khufu’s roughly 27-year reign, ancient builders would have had to place a block every few minutes. A new 3D model has been created by Vicente Luis Rosell Roig in a bid to show how a multi-ramp system could have kept up with this blistering pace.
The simulations suggest blocks could have been placed every four to six minutes, giving an estimated build time of 13.8 to 20.6 years, consistent with the historical record.
Factoring in quarrying, transporting materials across the Nile, and breaks for workers, the total timeline rises to around 20 to 27 years, which fits with existing estimates.

The framework could also be applied and adapted to test construction theories for other ancient structures
Roig began sketching the idea in 2020 after watching a documentary about the pyramid, moving from hand sketches to a full 3D model, simulating the construction process block by block.
The theory also has merit when looking inside the pyramid. The geometry of the proposed ramp paths correspond with anomalies detected by the ScanPyramids project, which used cosmic-ray muons to reveal hidden voids within the structure.
It could also explain significant wear observed at the pyramid’s corners, particularly the southeast, which may mark entry points where the greatest flow of blocks occurred and the structure was most vulnerable.

This design would have allowed workers to move stone blocks steadily upward without constructing massive external ramps (Picture: Getty Images)
The theory suggests the center of the system would be the ramp itself, acting as a gradual path built into the pyramid’s outer structure with sections of the outer stone layers being temporarily left open to form the upward path, being filled in as work progressed.
Roig says that replicating ramps on all four faces of the pyramid like this would transform a single pathway into one joined-up solution.
This approach is further supported by archaeological evidence from the Hatnub quarries, which show evidence that ancient Egyptians carved ramps directly into rock to distribute load, and from the Sinki pyramid, which features four ramps, one for each face.

Structural stability was another major focus of the model (Picture: Getty Images)
However, one of the most significant hurdles that any Great Pyramid construction theory needs to overcome is to explain how granite beams, weighing roughly between 50 and 80 tones, could find their way to the King’s Chamber.
The study addresses this by proposing that short, reusable ramps could have been constructed on the expansive lower terraces to move these granite beams using wooden bollards for control.
The implications of the research also extend beyond the Great Pyramid, as the framework could be applied and adapted to test construction theories for other ancient structures, discovering how ancient builders solved complex problems with the technology available to them.
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Great article! This really puts things into perspective. I appreciate the thorough research and balanced viewpoint.
Interesting read, though I think there are some points that could have been explored further. Would love to see a follow-up on this topic.
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Well written and informative. The examples provided really help illustrate the main points effectively.
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