| 摘要 |
An underground construction for receiving buried hydraulic assemblies to be used for refuelling in general vehicles and in particular aircrafts, above all military aircrafts, such hydraulic assemblies being self-contained units formed of a retractable delivery station (CE) which is supplied by two fuel tanks (SR1, SR2) connected thereto, consists of: an outer carrying frame (10) of rectangular form which is laid down at the surface level with respect to the hole for the buried tanks, surrounds the opening of such hole, supports the delivery station and the tanks both by supporting their weight and by withstanding the upwards thrust due to the buoyancy in case the hole is flooded, and is made of reinforced concrete; and a number of covering flat blocks (15) also of reinforced concrete, such frame being provided with a central panel having an octagonal opening (21) which receives the delivery station, a number of anchoring means for the beams (14) supporting the tanks, and stepped portions for receiving the heads of the covering flat blocks. |
