Method for making and installing a reinforcement cage
An installation method and steel cage technology, applied in construction, foundation structure engineering, sheet pile walls, etc., can solve the problems of rigidity and overall hoisting problems, complex operation, high requirements for site flatness and site width, and achieve convenient manufacturing methods Fast, low construction cost, and reduced production difficulty
Active Publication Date: 2020-06-12
CHINA RAILWAY ERJU 1ST ENG CO
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Problems solved by technology
[0002] At present, the foundation pit enclosure structure of cut-and-open stations in the Yangtze River Delta and Pearl River Delta regions is mostly based on underground diaphragm walls. The manufacture of steel cages for large-tonnage diaphragm walls, their stiffness, and overall hoisting have always been key factors that plague construction. Some production and installation methods have high requirements on site flatness and site width, and steel pipe support frames need to be added to the Z-shaped steel cage section, which is complicated to operate
Method used
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Effect test
Embodiment
[0040] In this embodiment, taking the GFHD-1 Standard Science Center Station of the Pearl River Delta Intercity Rail Transit Guangzhou-Foshan Ring Road as an example, a method for making a steel cage is provided. The specific method is as follows:
[0041] Step 1. Steel bar processing
[0042] Steel bars and water-stop I-beams are processed and distributed in a centralized manner.
[0043] Step 2. Reinforcement Installation
[0044] ①Installation of the main reinforcement of the bottom layer and welding of the anti-slip iron sheet
[0045] 1) Position the water-stop I-beam first, then lay the anti-slip iron sheet, and then lay horizontal steel bars according to the spacing, press the horizontal steel bar against the iron sheet, weld the iron sheet through the welding part of the horizontal bar and the H-shaped steel, and at the same time ensure the welding of the steel bar and the H-shaped steel Seam length (10d on one side, 5d on both sides) and weld quality (smooth, no sla...
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The invention provides a reinforcement cage manufacturing and mounting method, and belongs to the field of construction of a foundation pit enclosure underground continuous wall of a urban rail transit (intercity railway) open-cut station.A reinforcement cage is hoisted through methods of lifting and hoisting through double cranes, returning to be perpendicular in air, and travelling through the single crane, relevant safety technical measures are in place, thus construction safety can be ensured, the machining quality of underground continuous wall steel bars is improved, and manufacturing ofthe underground continuous wall steel bars and overall hoisting construction resource allocation are optimized.
Description
technical field [0001] The invention relates to a method for manufacturing and installing a reinforcement cage, which belongs to the construction field of an underground diaphragm wall for foundation pit enclosing protection of an open excavation station of an urban rail transit (intercity railway). Background technique [0002] At present, the foundation pit enclosure structure of cut-and-open stations in the Yangtze River Delta and Pearl River Delta regions is mostly based on underground diaphragm walls. The manufacture of steel cages for large-tonnage diaphragm walls, their stiffness, and overall hoisting have always been key factors that plague construction. Some production and installation methods have high requirements on the flatness of the site and the width of the site, and it is necessary to add a steel pipe support frame to the Z-shaped steel cage section, which is complicated to operate. Contents of the invention [0003] The purpose of the present invention is...
Claims
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IPC IPC(8): E02D5/18
CPCE02D5/187
Inventor 郭淇刘敏张兴愿尹江麻瑀庞瑜余飞胡刚梁旋杨平平其他发明人请求不公开姓名
Owner CHINA RAILWAY ERJU 1ST ENG CO