BASE FOR CLOSELY LOCATED RESERVOIRS Russian patent published in 2013 - IPC E02D27/38 

FIELD: construction.

SUBSTANCE: base for closely located reservoirs comprises a pit, a gravel-sand or a crushed stone cushion with layerwise compaction. The gravel-sand or crushed stone cushion is made in the form of a solid strip under a group of closely arranged reservoirs and has width under the central reservoir equal to (0.4-1.2)D, and under the extreme reservoirs - to (0.3-0.8)D. Length for extreme reservoirs makes (0.5-0.9)D, where D - diameter of a reservoir, at the same time cushion thickness under the central reservoir makes 1.1-2.5 of the cushion thickness under extreme reservoirs. Side slopes of the pit are made with an inclination α=15°-70°, where α - angle of inclination of a side face of the pit relative to the horizon.

EFFECT: higher operational reliability of reservoirs, their lower lists and subsidences of a central reservoir, increased service life.

6 dwg