Method for drilling hole with plastic clay for protecting wall of hole
A technology of plastic clay and drilling method, which is applied in the direction of drilling equipment and methods, earthwork drilling, drilling equipment, etc., and can solve problems such as difficulty in guaranteeing the quality of blasthole drilling, rough hole walls, and difficulty in charging charges, etc. Achieve the effects of improving the overall blasting effect, ensuring the quality of the hole, and improving the drilling efficiency
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[0009] Below by embodiment the present invention will be further described:
[0010] preferred embodiment
[0011] The plastic clay wall retaining drilling method comprises the following steps:
[0012] (1) Add water to the clay to make it into a plastic state;
[0013] (2) In the blast hole drilling process, when encountering a broken rock section, firstly form a hole, then put out the drilling tool, put plastic clay in the blast hole, then put the drilling tool into the drill hole, and then use the Move the drill bit up and down while rotating, let the drill bit drag and squeeze the plastic clay;
[0014] (3) After the hole is formed, the blasthole orifice is blocked, and the charge is waited.
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