Tech

Water Technology May Have Helped Build Egypt’s Step Pyramid of Djoser

Djoser Pyramid

The Pyramid of Djoser might have been built with the help of a hydraulic system that used water to transport stones, indicating advanced engineering in ancient Egypt.

A new study proposes that the construction of the Pyramid of Djoser involved a hydraulic lift system, where water from a nearby dam helped elevate building materials. This innovative method suggests a sophisticated use of water technology in ancient Egypt.

The Pyramid of Djoser, the oldest of Egypt’s iconic pyramids, may have been built with the help of a unique hydraulic lift system. This is according to a study published on August 5, 2024, in the open-access journal PLOS ONE by Xavier Landreau from CEA Paleotechnic Institute, France, and colleagues. The new study suggests that water may have been able to flow into two shafts located inside the pyramid itself, where that water could have been used to help raise and lower a float used to carry the building stones.

Hydraulic Force To Assist With Building the Step Pyramid of Saqqara

Map of the Saqqara plateau showing the water course from the Gisr el-Mudir dam to the water treatment facility near Djoser pyramid. The water is then transferred to the pyramid’s network of pipes to power the hydraulic elevator. Credit: Paleotechnic of Paris, France, CC-BY 4.0

Innovations in Ancient Construction Techniques

The Pyramid of Djoser, also known as the Step Pyramid, is believed to have been built around 2680 BCE as a funerary complex for the Third Dynasty pharaoh Djoser. Yet the exact method of its construction remains unclear. In this new interdisciplinary analysis, researchers suggest that the nearby Gisr el-Mudir enclosure — a previously unexplained structure — may have functioned as a “check dam” to capture water and sediment.

In addition, a series of compartments dug into the ground outside of the pyramid may have served as a water treatment facility, allowing sediment to settle as water passed through each subsequent compartment. Water may then have been able to flow into the pyramid shafts themselves, where the force of its rise could help carry the building stones.

Hydraulic Force Process To Assist With Building the Step Pyramid of Saqqara

The identified building process of the step pyramid: A hydraulic lift mechanism. Credit: Landreau et al., 2024, PLOS ONE, CC-BY 4.0

The Role of Water in Pyramid Construction

Further research is still needed to understand how water might have flowed through the shafts, as well as how much water was available on the landscape at that point in Earth’s history. However, the authors of this new study suggest that even as other building methods like ramps were probably also used to help build the pyramid, a hydraulic lift system could have been used to support the building process when there was enough water.

Collaboration Unveils Historical Insights

The authors add: “A collaborative effort between the newly established research institute, Paleotechnic, and several national laboratories (INRAE, University of Orléans) has led to the discovery of a dam, a water treatment facility, and a hydraulic elevator, which would have enabled the construction of the Step Pyramid of Saqqara. This work opens a new research line for the scientific community: the use of hydraulic power to build the pyramids of Egypt.”

Reference:  “On the possible use of hydraulic force to assist with building the step pyramid of saqqara” by Landreau X, Piton G, Morin G, Bartout P, Touchart L, Giraud C, et al., 5 August 2024, PLOS ONE.
DOI: 10.1371/journal.pone.0306690

Funding: The Sicame Group, The Atoutscarto Company and The Verilux Company provided support in the form of salaries for GM, CG and J-CM, respectively. The specific roles of these authors are articulated in the ‘author contributions’ section.




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