method to build a anleggning for storage of liquid products, such as oil products in the mountains

摘要

PCT No. PCT/SE82/00247 Sec. 371 Date Apr. 7, 1983 Sec. 102(e) Date Apr. 7, 1983 PCT Filed Jul. 19, 1982 PCT Pub. No. WO83/00526 PCT Pub. Date Feb. 17, 1983.Method for constructing a liquid-product storage location in rock formations, said location comprising a first cavity, and a plurality of second cavities located outside the first cavity. In accordance with this method there is first formed a tunnel (7) which slopes from the surface of the ground down to a given point in the rock formation. There is then blasted from said given point a second sloping tunnel (22) which meanders in the ultimate storage location in a plurality of turns down to the level of the bottom (11) of the ultimate first cavity. Horizontal primary tunnels (T1-T6) are then blasted from the meandering tunnel at a plurality of levels. From the primary tunnels there is then blasted at all the aforementioned levels a plurality of horizontal, secondary tunnels which extend towards the site of the ultimate first cavity (1) and define a number of rock stopes (P1-P6), whereafter the first cavity is formed by blasting, in a manner to extend along or to the level of the lowermost parts of the ultimate second cavities (2). Subsequent hereto, there is optionally blasted one or more sloping tunnels, which are directed towards the center of the lowermost part of the first cavity. Subsequent hereto the second cavities are formed by blasting away those rock stopes (P1-P4) located between superimposed secondary tunnels, beginning with the lowermost stope and continuing upwardly in sequence with remaining stopes, the shot rock-mass (16) falling downwardly, optionally through the slide tunnels, being transported to ground level.