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Water supply and drainage of a six-storey residential building

  • Added: 09.06.2015
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Description

Course project. Calculation of water supply and drainage of 6 storey multi-apartment residential building.

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Additional information

Contents

Contents

Source Data

The building for design is 36 - apartment residential 6 - storey building. The house has a flat roof. The building is equipped with centralized hot water supply, washbasins, washes, baths 1500-1700mm long with showers.

Head at connection point of water pipeline Ngar = 28.0 m.

Ground elevation at the building is 65.0 m.

Ground floor elevation 66.0 m.

Elevation of the city sewage hatch is 64.6 m.

The elevation of the city sewage tray is 61.7 m.

The elevation of the city water supply pipe is 61.5 m.

Ground freezing depth is 1.95 m.

Plot Plan Building Variant - 19

Distance to red line L1 = 5.0 m.

Distance between houses L2 = 18.0 m.

The diameter of the city water pipe db = 200 mm.

The diameter of the city sewage pipe dc = 250 mm.

Urban communications are existing.

Floor height 3,, 2 m; basement height 2.1 m.

The population density is 4.4 people/sq.

Construction district - Izhevsk.

Roof slope 1%.

Internal water supply

2.1 Selection of internal water supply system and diagram.

According to SNiP 2.04.0185 * "Internal water supply and sewerage of buildings" we accept a dead end network diagram with one inlet and lower wiring of the highway, since a residential building has less than 400 apartments. Risers and wiring of the internal water supply are laid in an open way in sanitary and technical cabins. We accept a simple system of internal water supply, operating from pressure in the external network. Steel pipes GOST 326275 with a diameter of 50 mm with thermal insulation are used for entry. Entry is performed with slope from building 0.003 with depth of laying. At the points of connection of the input to the city water supply, a water supply well of reinforced concrete elements is arranged. At points of intersection of water pipeline inlet with sewage, water pipeline consists of steel casing.

The main pipeline and all horizontal sections are laid with a slope of 0.003 towards the inlet for water drain from the system during repair. Highways are located at an altitude of 300 mm from the ceiling. At the base of each riser near the branch from the main, a shutoff valve is provided, as well as in front of flush tanks, watering cranes. At a height of 0.2 m from the pavement in the wall niche, a watering crane with a diameter of 25 mm is provided on the main line.

The water metering unit is located directly behind the first wall of the basement, where the temperature is more than 5 ° С.

List of literature

1. SNiP 2.04.0284 * "Water Supply."

2. SNiP 2.04.0185 * "Internal water supply and sewerage of buildings"

3 SNiP 2.04.0385 * "Sewerage."

4. Designer Reference Book. – Part 2. Internal water supply and sewerage/under the editor. Staroverov. - M.: Stroyizdat, 1990.

5. Grinko E. A., Nepogodin A.M. "Methodological guidelines and assignment for coursework in the discipline" Water supply and sanitation. "- IzhSTU, 2012

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