Rock reinforcement small pipe punching machine, Jingheng tunnel support small pipe drilling machine

Description :

　　Rock reinforcement small pipe punching machine, Jingheng tunnel support small pipe drilling machine

　　Punching machines have been widely used in tunnel construction. The punching machine can set 200 holes on one pipe, and the machine is matched with a servo motor. The hole spacing error is within ± 0.3mm, and the punching speed is fast, which greatly improves the manual cutting speed compared to before. The circular holes are also relatively neat and beautiful.

　　How to inject grout with a small pipe punching machine:

　　(1) Before grouting, a dedicated person should be arranged to inspect the equipment and conduct on-site trial operation to ensure that the grouting pressure can reach the design pressure and ensure the continuity of subsequent grouting work.

　　(2) The slurry should be mixed in a mixer, and the feeding sequence of cement slurry is as follows: while draining water, add the admixture into the mixer. According to the capacity of the mixer, after adding enough water, stir for 1 minute, then add the corresponding amount of cement, and continue stirring for no less than 3 minutes. The mixed slurry must be poured out within the specified time, otherwise it should be discarded.

　　(3) For the inserted steel pipe, the accumulated material inside the pipe should be flushed first, and then the 2TG120/105 grouting pump should be used for grouting. Grouting is carried out from bottom to top, and the slurry is mixed using HJ1-352 mortar mixer. The water cement ratio is selected in four levels: 1:1.5, 1:1, 1:0.8, and 1:0.6. During grouting, the slurry gradually changes from thin to thick according to different water cement ratios. After grouting is completed, immediately block the steel pipe hole to prevent the slurry from flowing out. If groundwater is abundant, cement water glass dual liquid grouting can be used. If dual liquid slurry is injected, two grouting pumps and their pipelines are used to press the two types of slurry into the orifice mixer at a certain flow rate, and then inject them into the rock soil and rock reinforcement through a perforated small pipe punching machine and a precision tunnel support small pipe drilling machine.

　　Note 1: The working fluid should be replaced once a year, and the replacement time should not exceed three months. 2. The slider should be regularly oiled, and the exposed surface of the column should be kept clean. Oil should be sprayed before each operation. 3. If the machine is not used for a long time, the surface should be cleaned and coated with anti rust oil. 4. The pressure gauge should be calibrated and checked every six months. 5. Regularly check whether the transmission, connection, and protective devices of the small pipe punching machine are normal, and ensure that the mold screws are securely fastened. 6. At the end of the operation of the small pipe punching machine, cut off the power supply of the small pipe punching machine, machine tool, and organize the rock reinforcement small pipe punching machine. Jingheng Tunnel Support Small Pipe Drilling Machine.

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• Rock reinforcement small pipe punching machine