Construction method of large-diameter coal bunker flat-topping lid

A construction method and large-diameter technology, which are used in earth-moving drilling, roof beams for supporting mine roofs, shaft linings, etc., can solve the problems of long construction period, high construction cost, low safety, etc., to ensure construction quality, Safe and reliable operation and the effect of improving work efficiency

Inactive Publication Date: 2009-11-25
CHINA COAL BUILDING & INSTALLATION ENG GRP
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Problems solved by technology

[0002] At present, in the construction of large-diameter coal bunkers with flat roofs, scaffolding is used from the ground to the top of the bunker t...

Method used

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  • Construction method of large-diameter coal bunker flat-topping lid
  • Construction method of large-diameter coal bunker flat-topping lid
  • Construction method of large-diameter coal bunker flat-topping lid

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Embodiment Construction

[0023] A construction method for a large-diameter coal bunker with a flat roof cover structure, the process steps of which are: ① determine the position of the H-shaped steel and the sliding form platform, ② pre-embed the steel plate in the inner wall of the coal bunker, and ③ pre-install the steel lattice column on the ring beam of the coal bunker wall. Buried, ④ sliding form platform lowered, ⑤ sliding form platform fixed, ⑥ welded and fixed H-shaped steel corbels, ⑦ H-shaped steel in place, ⑧ H-shaped steel reinforced, ⑨ roof main beam formwork installation, ⑩ main beam steel bar binding, Concreting of the main girder, Secondary beam and roof construction, Formwork and support system removed. The determination step of the position of the H-shaped steel and the sliding form platform is to specifically determine the positions of the H-shaped steel and the sliding form platform according to the design position of the main girder 8 of the coal bunker flat roof cover in the ...

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Abstract

The present invention discloses a construction method of a large-diameter coal bunker flat-topping lid, which comprises the following technical processes: 1. confirming the positions of the H-shape steel and the slip-form platform, 2. pre-embedding a steel plate in the inner bulkhead of the coal bunker, 3. pre-embedding the steel lattice structural column on the bulkhead ring beam of the coal bunker, 4. lowering the slip-form platform; 5. fixing the slip-form platform; 6. welding and fixing the steel corbel of the H-shape steel, 7. fixing the H-shape steel in position; 8. reinforcing the H-shape steel; 9. installing a bunker top main-beam formwork; 10. binding the main-beam reinforcement steel bars; 11. pouring the main-beam concrete; 12. constructing the secondary beam and the roof plate; and 13. detaching the formwork and the supporting system. The construction method of the large-diameter coal bunker flat-topping lid according to the invention has the advantages of no requirement for building full hall scaffold in the bunker, high work efficiency, short construction period, low construction cost, reliably safety and remarkable economic benefit.

Description

technical field [0001] The invention relates to a building construction method, in particular to a construction method for a large-diameter coal bunker with a flat roof. Background technique [0002] At present, in the construction of large-diameter coal bunkers with flat roofs, scaffolding is used from the ground to the top of the bunker to fix the girder formwork, secondary beams and bunker roof formwork. The construction period is long, the construction cost is high, and the safety is low. Therefore, it is a technical problem to be solved at present to design a construction method of a large-diameter coal bunker with a flat roof and a cover structure with a short construction period, low construction cost, and high safety. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a construction method for a large-diameter coal bunker with a flat roof and a cover structure with short construction period, low construction...

Claims

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Application Information

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IPC IPC(8): E21D15/00E21D17/00E21D11/04
Inventor 王鹏李树昆任凤臣孙桢郭子健郭少江李侠军
Owner CHINA COAL BUILDING & INSTALLATION ENG GRP
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