Construction method of water tank of fountain equipment

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1, check the level point, lay temporary level point, check the elevation.

2. Test and set up the middle pile of water tank of fountain equipment, the elevation of pipelines in situ, the trench edge line, soil stacking, stacking interval and temporary land use scheme.

3. Seriously control the bottom elevation of the trough when excavation, and never overdig. The bottom elevation of the trough can trek 10cm compared with the description of the elevation, and do some to stay, and manually clear the trough to prevent the bottom from being disturbed and affecting the quality of the project. The earth dug out in the groove is piled up beyond 1.0 meters from the edge of the trench, and the soil is soft and dangerous. The supporting method is used to prevent the trench from collapsing.

4. The bottom of the trough is packed with solid earth, and the four sides of the trough are built with MU5.0 gravel M5 cement mortar:

A Selection of original data: in order to reduce the heat of hydration, 32.5 grade slag cement is selected; Consider concrete pumpability, reduce shortening, ensure strength, trek concrete durability and crack resistance, choose 5-31.5mm continuous diameter gravel; In order to reach the pouring temperature of 28.5 degrees of concrete mixture, deep groundwater mixing was selected. In concrete mixed with UEA expansion agent, offset the shortening of concrete, the release of extension hydrates, reduce the temperature stress of the floor, trudging pump; And_grade fly ash is mixed in the concrete.

B fountain equipment pouring method: begged one-time pouring finished, not leaving construction joints, strengthen the bottom of the pool and the wall of the impermeable water. Concrete pouring from the bottom to the top of the selection of "inclined plane stratification, self-restraint, thin layer pouring, natural activities, continuous construction, one to the top" pouring method.

C Vibration: Vibration time, vibration point interval and penetration depth should be seriously controlled to avoid leakage vibration at the junction of each casting belt. Trudge concrete and steel grip force, increase the density.

D Fountain equipment surface and water leakage treatment: after pouring and forming the concrete surface cement mortar is thick, should be delineated by scraping the elevation with a ruler, drive away the water leakage surface, before the initial setting, repeat rolling, rubbing the surface with a wooden rag 2-3 times, in order to force and collect water cracks.

E fountain equipment concrete protection: due to engineering construction, it is autumn, the temperature difference between noon and night is large, in order to ensure the quality of concrete construction, control the onset of temperature crack, choose water storage protection. Before water storage, choose to cover a layer of plastic film, a layer of straw bag, moisturizing temporary protection.

5. Refer to the drawing for equipment of overflow and water inlet pipelines.

6, fountain equipment pipeline construction completed, equipment water grate cover plate:

The cover plate of A Yongquan water grate is stainless steel. The specification is 600*600, the four corners are fixed with 108* 4,25 high stainless steel ring, the four sides are 30*30*3 stainless steel, the diagonal line is 38*25*1.5 stainless steel square pipe, the bar of the four sides partition is 25*25*1.0 stainless steel square pipe.

The width of the water grate of the water tank in B is 600, and the length of the water grate is determined on site. The stainless steel tube of 30*30*3 is used for welding on the four sides, and the bar of 25*25*1.0 is used for welding in the middle.