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ABSTRACT

The design includes water supply systems, sewerage in two parts.

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Water supply project for urban, industrial as an important infrastructure, the need to ensure a sufficient quantity of qualified water, ample supply of water pressure, water and other production water. Water system design steps ,According to the maximum daily water demand curve calculation of the towers and adjust volume-pool. Network for alignment of the calculation of the design flow, diameter and head loss. Ring Network at the highest net adjustment calculation; Identify high towers and pumps lift.Were adverse possession of the accident, fire, the biggest transfer when checking. Then Based on the above calculations, calculated at the maximum node pressure, drawing water pressure line. Drainage projects in environmental protection, protection of the people's health and economic importance. According to the drainage system of domestic sewage, industrial wastewater and stormwater different exclusion as a result of the drainage system known as the drainage system. Drainage system can be divided into two general types : Combined and triage system. According to the design characteristics of the local terrain and the state of the economy, use of rainwater and sewage triage system. Design steps : Respectively of sewage and stormwater systems network alignment. Then according to their respective catchment area of pipe flow; Determined diameter, depth and slope, Finally, according to the

results section of map drawing sewers.

KEY WORDS: Design flow£¬ Water-supply System, Drainage system,

Stormwater system£¬ Pipe network fixed-line

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