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1, earthwork excavation, foundation pit compaction.
Double layer oil tank construction steps
Double tank construction steps (6 photos)
2, reinforced concrete and masonry engineering.
3. Earthwork backfill, mechanical compaction, backfill soil layer greater than 500mm;
4, the sand mat is selected as medium and coarse sand, the laying thickness is 200~ 250mm, and the flat plate oscillator is used for watering and tamping.
5. The asphalt sand cushion layer is made of medium and coarse sand and petroleum asphalt of Road No. 60 A, which is heated to make asphalt sand and laid flat in layers and blocks. The thickness is 80~ 100mm, and the slope of the top surface of the tank foundation from the center to the periphery is 15~35‰
6, slope protection construction, storage tank water pressure test after the slope protection construction, slope protection width of 800~ 1000mm. The asphalt mastic is used to fill between the slope protection and the bottom of the storage tank. [9]
FF construction steps:
Special prefabricated ground anchor is adopted for simple and effective installation. The driveway can be buried directly under the buried depth of up to 2.1M, without the need for reinforced concrete frame to protect the oil tank. Use 3~12MM gravel backfill can be.


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