Reviewing the Technological History of Electroosmosis Pulses:

In 1807, Russian scientist Fredss Royce first discovered the phenomenon of electroosmosis, and in 1906, someone in Europe began to apply the electroosmosis pulse technology to the waterproof test of masonry walls.

But it wasn't until the technology was used on a large scale in military projects that "technological waterproofing" really hit the stage of history.

Xie Xiangzhi, chief engineer of Tongqiang Technology, participated in the construction of Changsha's first subway station (Huangxing Square Station -- Houjiatang Section is 1.3km) in 2015, which provided technical support for solving the waterproof problem of subway.