Has the World’s Largest Concrete Mass Slowed the Earth’s Rotation and Tilted it’s Axis?

by | Oct 22, 2019 | Blog, News, Post | 0 comments

The answer according to the experts is yes!

The Three Gorges Dam in China is the world’s largest concrete mass.

Length: 2,335 metres

Height: 181 metres

Weight of Steel Reinforcement: 463,000 tonnes

Weight of Concrete: 40,000,000 tonnes (16,000,000 m3)

Weight of Water: raised 35,000,000 tonnes of water 175 metres above sea level.

NASA have calculated that:

  • the length of a day has increased by six hundredths of a microsecond
  • the North and South Poles have moved by 2 centimetres

NASA’s reasoning is that the total mass of the dam is large enough to:

  1. tilt the Earth’s axis, and
  2. slow the Earth’s rotation.

An Interesting Feature of the Three Gorges Dam:

The Dam has A Ships Elevator.

It can lift ships with a maximum displacement up to 3,000 tonnes and is designed to lift a total weight of 15,500 tonnes by up to 113 metres.

How can this be achieved?

Archimedes’ principle of displacement is the scientific answer.


Archimedes of Syracuse was a Greek mathematician, physicist, engineer, inventor, and astronomer. Although few details of his life are known, he is regarded as one of the leading scientists in classical antiquity. Generally considered the greatest mathematician of antiquity and one of the greatest of all time, Archimedes anticipated modern calculus and analysis by applying concepts of infinitesimals and the method of exhaustion to derive and rigorously prove a range of geometrical theorems, including the area of a circle, the surface area and volume of a sphere, and the area under a parabola.

Archimedes‘ principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body’s displaces and acts in the upward direction at the centre of mass of the displaced fluid.

In more simple terms, any floating object displaces its own weight of fluid.

The Ship Lift Structure:

The main components of the structure are four 169m high reinforced concrete towers.

The four towers are built on a continuous foundation slab, directly on granite rock.

Between the towers the steel ship chamber, which is 132m long, is suspended from 256 ropes that are connected with counterweights via 128 double rope pulleys at the tops of the towers.

Each pair of towers on the long sides of the ship chamber is flanked by shear walls.

The walls and towers are connected by coupling beams distributed evenly over the height.

Two bridges between the towers are located above the ship chamber, one for the central control room and one for a visitor platform.

The Step by Step Process:

When a ship heads upstream, it first has to get into the fifth chamber.

Close the fifth chamber and make the water level in fifth chamber the same with the fourth chamber.

Then, open the gate between fifth chamber and fourth chamber and ship goes into the fourth chamber.

Repeat this step in each chamber and the ship can cross the five chambers by passing six gates.

And voilà, the ship exits from the top chamber and proceeds into the upper Yangtze River.

Who designed the Ship Lift?

Jointly designed by Chinese and German engineers.

This is how it looks in action:

 Video: Published by New China TV on 17 September 2016.

The Three Gorges Dam is also a Giant Power Station:

Three Gorges Dam is the world’s largest power station in terms of installed capacity of 2,500 MegaWatts.

The dam is the largest operating hydroelectric facility in terms of annual energy generation, generating over 100 billion kilowatt hours in 2018.

There are twenty-six rotating generators.

These generators use Francis Turbines.

This is one of the Turbine Rotors.

The Three Gorges Dam is an amazing engineering feat and great credit must go to the Engineers and Builders and thousands of workers who created this enormous technically advanced concrete structure.



Your concrete repair project may not be as large as the Three Gorges Dam but nevertheless it is important to us. So please call for Advice and a Quote.

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