Use of loams for hydraulic filling of the upstream blanket of the Baipaza hydroelectric station

Conclusions

• 1. On the basis of the experience in conducting the works and investigations it was established that it was expedient to construct the blanket in the upstream pool of the Baipaza hydrostation from loam of a local borrow pit in a mixture with gravel and pebbles hydraulically filled under water. The advantages of the given technology consist in the comparatively small labor intensity and cost of performing the hydraulic filling works and a high level of their mechanization.

• 2. Placing of a gravel-pebble mixture with loam promotes acceleration of the consolidation process and provides stability of the surface of the blanket.

• 3. It is recommended to check the quality of the hydraulically filled blanket and technology of performing the works with the use of a set of portable instruments for conducting investigations.