FIELD: water-development works. SUBSTANCE: process provides for fencing-off and draining of section of water area where foundation 1 is built on which module units in the form of air-lock chambers intermated with formation of pressure front are mounted. By use of lock elements 3 and change of water level in chamber floating aggregate elements are installed inside each chamber 2. These elements are made at factory, have small setting and are easily shipped to construction site. EFFECT: simplified design and reduced cost of technology of erection of hydraulic power stations in rivers with limited shipping. 3 cl, 6 dwg
