Construction method for lifting overlong reinforcement cage by one step
A technology of super-long steel cage and construction method, which is applied in the direction of foundation structure engineering, construction, sheet pile wall, etc., and can solve the problems of thickening of sediment at the bottom of rotary excavation pile holes, collapse of holes, and no way to control and guarantee the construction quality. , to achieve the effect of shortening the time interval, reducing the thickness of the sediment and reducing the diameter
Active Publication Date: 2013-11-20
CHINA CONSTR EIGHT ENG DIV CORP LTD
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Problems solved by technology
The disadvantages of the traditional method are: the construction quality cannot be controlled and guaranteed due to the vertical welding at the time of connection, and the large-diameter super-long steel cage is divided into several sections, and then the time for section hoisting and welding is longer, which has been added The risk of thickening, diameter shrinkage and hole collapse of the sediment at the bottom of the rotary excavation pile hole
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[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0020] Cooperate with reference figure 1 Shown, the ultra-long reinforcement cage disposable hoisting construction method of the present invention comprises the following steps:
[0021] S1 processing super long steel cage;
[0022] According to the drawings, the super-long steel cages are processed at one time or in several sections at the steel processing site, and then assembled into a complete steel cage at the site.
[0023] S2 sets the hanging point on the reinforcement cage;
[0024] Cooperate with reference figure 2 As mentioned above, the number of lifting points of the reinforcement ...
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The invention discloses a construction method for lifting an overlong reinforcement cage by one step. The construction method comprises the following steps: (1) the overlong reinforcement cage is processed by one step or processed by in sections to assemble an entire reinforcement cage; (2) a plurality of lifting points are arranged uniformly in the main reinforcement direction of the reinforcement cage according to the length of the reinforcement cage; (3) the lifting points are lifted at the same time, so as to horizontally lift the reinforcement cage to a designed elevation; (4) respective lifting points on the reinforcement cage are lifted or lowered down at respective speeds, so that the reinforcement cage is overturned until the reinforcement cage reaches a vertical state; (5) the lifting points except the topmost lifting point are unfastened, the reinforcement cage at the vertical state is transported to the position of a pile hole, and then the reinforcement cage is put into the pile hole. According to the invention, the reinforcement cage welding and acceptance at an orifice is not required, a time interval from end hole to concrete pouring is shorted greatly during construction, and the thickness of sediments at the hole bottom and risks of hole shrinkage and hole collapse are reduced.
Description
technical field [0001] The invention relates to a hoisting construction method of a reinforcement cage, in particular to a one-time hoisting construction method of an ultra-long reinforcement cage. Background technique [0002] The hoisting of traditional reinforcement cages is generally based on the total length of the reinforcement cage while considering the principle of saving steel. The reinforcement cage is divided into several sections in the reinforcement processing yard on the construction site, processed and manufactured, and then dragged or hoisted to the vicinity of the pile by car. Then use a crane to lift, connect, and install in sections. The connection method generally adopts welding, and then put it into the hole section by section. The disadvantages of the traditional method are: the construction quality cannot be controlled and guaranteed due to the vertical welding at the time of connection, and the large-diameter super-long steel cage is divided into seve...
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IPC IPC(8): E02D5/34
Inventor 陆仕颖戈祥林黄贵欧阳国云旷水林覃彬栋廖福元
Owner CHINA CONSTR EIGHT ENG DIV CORP LTD