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前言随着城市的发展人口的增加,城市供水规模不断扩大。以上海为例,1990年代末,全市自来水综合日供水能力达到460万m3,而至2005年全市日最大供水量已达800万m3。需求的增加,除了寻找城市新的水源地,新建水厂以外,对于原有供水系统中重要的泵站工程进行升级改造也是重要的措施之一。考虑到经济因素,此类泵房结构型式多为半地下式钢筋砼结构,泵房进出水管连接水泵均置于地下。地上常为排架或框架结构,并设有吊车梁系统及控制室等。城市泵站工程大多建于城市中心城区,周边紧临建筑物或道路,泵站工程施工管理应考虑对环境及居民生活出行带来的影响。一般泵站改建的合理施工工期约为
Preface With the growth of urban population, urban water supply has been expanding. Take Shanghai as an example. In the late 1990s, the water supply capacity of tap water in the city reached 4.6 million m3. By 2005, the daily water supply of the city had reached 8 million m3. In addition to finding new sources of water and new water plants in cities, the demand for upgrades is also one of the important measures to upgrade and upgrade important pumping station projects in existing water supply systems. Taking into account the economic factors, such pump room structure type mostly semi-underground reinforced concrete structure, the pump inlet and outlet pipes connected to the pump are placed underground. The ground is often rack or frame structure, and a crane beam system and control room. Urban pumping stations are mostly built in the urban center of the city, close to the surrounding buildings or roads, pumping station construction management should take into account the impact on the environment and the lives of residents. Reasonable construction period of general pumping station reconstruction is about