Construction method of hyperboloidal concrete structure of coal tower storage bunker incline wall

Abstract

The invention relates to a construction method of a hyperboloidal concrete structure of a coal tower storage bunker incline wall, comprising the following steps of: (1) building a coal tower storage bunker incline beam; (2) building aerated concrete blocks from the top down in the form of steps by closely leaning the coal tower storage bunker incline beam, wherein a wind-powered coal vibration tube is embedded in the corresponding position in the building process; (3) binding reinforcing mat sheets at the outer sides of the step-typed aerated concrete blocks; (4) erecting frameworks in steps and casting concrete according to the step-typed aerated concrete blocks so as to form a hyperboloidal concrete structure; and (5) fixedly mounting a wearable slab on the external body of the hyperboloidal concrete structure, and then finishing the integral construction. The invention reduces the use load of the integral structure, has simple construction process steps, higher casting quality and precision of the concrete, effectively reduces the construction difficulty and the construction cost, and is a construction method of the hyperboloidal concrete structure of the coal tower storage bunker incline wall with higher innovation property.

Description

technical field [0001] The invention belongs to the field of building construction, in particular to a construction method for a hyperboloid concrete structure with inclined walls of a coal tower silo. Background technique [0002] The coal tower is an essential facility for every coking plant. In order to discharge coal smoothly and reduce its own weight, the inclined wall of the coal tower silo is usually designed as a hyperboloid ceramsite plain concrete structure. In the construction of the hyperboloid concrete structure, the ceramsite element Concrete is embedded with wind-powered coal vibration pipes, and a layer of wear-resistant plates is laid on the hyperboloid surface. The existing construction process steps are: (1) building the inclined beam of the coal tower silo; (2) supporting the formwork; (3) drilling holes on the formwork to install the wind-force vibrating coal pipe; (4) pouring ceramsite plain concrete; ( 5) A layer of wear-resistant plates is installed,...

AI Technical Summary

Problems solved by technology

Although this construction process can meet the entire process requirements, it has the following defects: 1. It is difficult to ensure the quality of concrete pouring: due to the high hyperboloid concrete structure of the inclined wall of the coal tower silo, it is difficult to support the hyperboloid formwork, and it is difficult to ensure The surface accuracy and concrete quality of granular concrete after pouring affect the installation accuracy of subsequent wear-resistant plates and reduce the service life of the entire structure; After drilling holes on the formwork to install wind-force vibrating coal pipes, due to the pouring of ceramsite plain concrete, the formwork is easy to shift, so that the wind-force vibrating coal pipes are easily moved beyond the allowable deviation, which affects the coal output effect in the production process; 3. Wear-resistant plates Easy to loosen: the wear-resistant plate is fixed on the ceramsite concrete by expansion bolts. Due to the characteristics of ceramsite concrete, the expansion bolts are difficult to fix firmly, and it is easy to loosen under the influence of uninterrupted vibration during use; 4 , The construction is difficult: since the ceramsite concrete is poured after the main structure of the inclined beam of the coal tower silo is completed, the pouring opening is at the coal inlet 30m above the ground, and there is a vertical distance of nearly 20m between the coal inlet and the lowest pouring point distance, there is no support between the two, so it is very difficult to prepare materials, pump concrete, and pour concrete

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