Construction method for prefabricating pipe galleries

Abstract

The invention discloses a construction method for prefabricating pipe galleries. The method comprises the following steps: (1) carrying out construction for prefabricating parts by prefabricating an outer side wall, a top plate and a bottom plate, and arranging connection parts at the upper end and the lower end of the outer side wall, the left end and the right end of the top plate and the left end and the right end of the bottom plate respectively; (2) assembling the prefabricated parts by firstly hoisting the bottom plate, then hoisting the outer side wall, then mutually fixing the connection part at the lower end of the outer side wall with the corresponding connection part on the bottom plate, then mounting a die frame device, finally hoisting the top plate and mutually fixing the connection part at the upper end of the outer side wall with the corresponding connection part on the top plate; and (3) pouring in site and forming by pouring concrete on the inner surface of the outer side wall and the outer surface of the top plate. Through the construction method for prefabricating the pipe galleries, the pipe galleries are constructed by a manner with combination of prefabrication and in-site pouring; the method is simple to operate, rapid in speed and high in safety coefficient; the overall speed is far higher than that of the overall prefabrication and hoisting method; the good structural water prevention effect is achieved; the problem of water prevention is effectively solved.

Description

technical field [0001] The invention relates to a construction method of a prefabricated pipe gallery, which is used for laying and maintaining underground pipelines in cities. Background technique [0002] The city's underground pipeline is responsible for the city's information transmission, energy transmission, drainage and disaster reduction, and waste disposal functions. It is the material basis for the city's survival and development. It is like the "vessels" and "nerves" in the human body. Therefore, Known as the "lifeline" of the city. [0003] With the acceleration of my country's urbanization process, the construction of urban underground pipelines is developing very rapidly. Therefore, the development of urban underground comprehensive pipe gallery project has a certain "urgency". Comprehensive pipe gallery refers to the structure and its auxiliary facilities placed below the ground to accommodate various municipal pipelines, equipped with special inspection por...

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Problems solved by technology

[0005] 1. On-site pouring method: The domestic integrated pipe gallery under construction or has been constructed generally adopts the cast-in-place concrete method for construction. Its advantages are simple process and operability, flexible construction, and it is beneficial for the participation of the majority of enterprises in the society to control the cost of construction. However, there are " There are obvious shortcomings such as long working hours, heavy dust, and affecting public transportation, and there are no complete prevention and control measures to solve them. This method has been criticized by many people from the society

[0006] 2. Overall prefabrication and hoisting method: In recent years, with the successful application and gradual promotion of the technology of constructing underground comprehensive pipe gallery by the overall prefabrication and installation method in foreign countries, obvious social benefits have been achieved, and domestic countries have begun to follow suit, but because our country is still in its infancy , the development of molds required by the prefabrication method, the development of precise docking machinery and equipment for pipe racks, and the operating level of workers are relatively backward, which is not conducive to the development and application of pipe racks with large cross-sectional sizes. Therefore, domestically, more pipe racks with small cross-sectional sizes are designed

Pipe galleries with large cross-sectional sizes and large volumes often need to be equipped with large-scale crawler cranes, gantry cranes and other lifting machinery of more than 100 tons to assist, which increases construction costs, increases construction difficulty, and is not conducive to construction safety.

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