Curing method of precast concrete integrated pipe gallery

Abstract

The invention discloses a curing method of a precast concrete integrated pipe gallery. The curing method comprises a pouring process and a curing process after pouring. Pouring is conducted when the temperature of a template is 5-35 DEG C. After overall pouring is completed, curing of prefabricated components is conducted. An immersion tamping rod is used to preliminarily vibrate corners, a baseplate and a top plate, and then a clinging vibrator is used for discontinuous vibration for 30S and the discontinuous vibration order is weak vibration-strong vibration-weak vibration (the clinging vibrator is main, the tamping rod is auxiliary, and vibrating is conducted while blanking is conducted). The curing temperature is raised by steam combination, a steam generator generates steam to raise the curing temperature, and a steam pipe outlet is formed in the bottom of the pipe gallery. Holes are uniformly formed in a pipeline, and uniform temperature is ensured. The steaming and curing process is carried out according to a process order of static stopping, heating, keeping constant temperature and cooling.

Description

technical field [0001] The invention belongs to the technical field of urban comprehensive pipe gallery construction, and in particular relates to a maintenance method for a concrete prefabricated comprehensive pipe gallery. Background technique [0002] The urban underground comprehensive pipe gallery has a history of more than 180 years. The first country to build a pipe gallery is France. It integrates tap water, communication, electricity, sewage treatment, gas input pipes, and heating pipes. my country established it in Tiananmen Square in 1958. A comprehensive underground pipe gallery with a length of 1076 meters was laid. The early pipe gallery had a simple structure and limited capacity. The initial stage was the 11.125-kilometer underground comprehensive utility corridor built in Pudong, Shanghai in 1994, and the rising stage was in 2010. However, most of the construction of pipe galleries in my country is carried out by cast-in-place. The prefabrication of undergro...

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Problems solved by technology

[0003] At present, large-scale underground comprehensive pipe galleries in China are constructed by cast-in-place construction. The characteristics of on-site pouring are: restricted by the site, the maintenance conditions are difficult, the design requires 14 days of maintenance, the water consumption for maintenance is large, and the maintenance pipeline is inconvenient to lay. If it is not guaranteed, the impermeability of concrete is not as good as that of precast concrete in the factory, and it is prone to leakage, construction cracks in the pipe gallery, and cracks in the side wall of the culvert, etc. The product quality is not easy to control, and the construction cost is high

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