Cold press centering ring anchor rod centering construction method
A technology of middle-ring anchor rod and construction method, which is applied in basic structure engineering, construction, sheet pile wall and other directions, can solve the problems of affecting the construction quality of anchor rod, complicated construction and high cost, and achieves convenient and fast construction, good effect and guaranteed quality. Effect
Inactive Publication Date: 2009-08-05
CHINA GEZHOUBA GROUP CO LTD
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Problems solved by technology
[0002] At present, in the process of anchor bolt construction, most of the centering measures are not taken, and the anchor bolt is easy to cling to the rock wall, which affects the construction quality of the anchor bolt; Rod welding), complex construction and high cost
Method used
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Embodiment Construction
[0009] The production process of Central 1 is as follows: figure 1 as shown,
[0010] Prepare the steel bars used in the centering ring 1, and according to the diameter of the anchor rod 2, cut the steel bars and bend them into a semicircle with a diameter similar to that of the anchor rod 2 for later use; put the prepared semicircular steel bars on the anchor The centering ring 1 is formed by tightening the body of the rod 2 behind. The distance between the two ends of the centering ring 1 shall not be greater than 10cm, and the distance between every two centering rings 1 is 1.5-2.5m.
[0011] The anchoring construction of anchor rod 2 is as follows: figure 2 as shown,
[0012] After the installation of the center ring is completed, the anchoring construction of the anchor rod 2 can be started. After the anchor rod 2 is inserted into the anchor rod hole 3, the cement powder roll is blocked around the hole to ensure the centering of the anchor rod.
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The invention relates to a cold press centering ring roof bolt centering construction method. A reinforcement bar is made into a semi circle as a centering ring, wherein the diameter of the semi circle is similar to that of a roof bolt body. After being sleeved on a roof bolt body, the centering ring is tightly fixed. After the centering ring is installed, the anchoring construction of the roof bolt is started. After the roof bolt is inserted into a roof bolt hole, the periphery of the mouth of the hole is plugged with cement cartridges, which ensures the roof bolt to be centered. In the work progress of the roof bolt, the cold press centering ring roof bolt centering construction method enables the roof bolt to be basically in a centering state, makes the roof bolt body be uniformly coated with sand pulp, prevents the roof bolt from being close to a rock wall to cause the roof bolt body to be rusted, and ensures the quality of the construction of the roof bolt by the method that a plurality of centering rings are arranged. Compared with the construction of a roof bolt centering a bracket, which is often used at present, the invention has convenience, agility, low cost and good effect.
Description
technical field [0001] The invention relates to a bolt construction method, in particular to a cold-press centering ring bolt centering construction method capable of ensuring accurate centering of the bolt. Background technique [0002] At present, in the process of anchor bolt construction, most of the centering measures are not taken, and the anchor bolt is easy to cling to the rock wall, which affects the construction quality of the anchor bolt; rod welding), the construction is complicated and the cost is high. Contents of the invention [0003] The object of the present invention is to provide a cold-pressed centering ring bolt centering construction method which can effectively solve the centering problem of bolt construction, has simple process and convenient operation. [0004] The object of the present invention is achieved in this way: a cold-pressed centering ring bolt centering construction method, first make the steel bar a semicircle with a diameter similar...
Claims
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IPC IPC(8): E02D5/74
Inventor 屈庆余胡先振石义刚刘志文肖亮
Owner CHINA GEZHOUBA GROUP CO LTD