Surrounding rock crushed zone hollow grouting anchor rope hole sealing device and hole sealing method thereof
A technology of grouting anchor cable and hole sealing device, which is applied in the direction of earthwork drilling, bolt installation, mining equipment, etc. It can solve the problems of affecting the effect of high-pressure uniform grouting, the leakage of grout plug and the pressure relief, so as to ensure the high pressure Grouting effect, compact structure, remarkable effect
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[0028] Such as Figures 1 to 4 As shown, a hollow grouting anchor cable sealing device in the broken zone of surrounding rock, the outer part of the grouting anchor cable is a twisted steel strand, and the inner part is a grouting pipe 7, and the middle and rear part of the grouting pipe 7 has a grouting Port 1, the other end of the grouting anchor cable (the outer end of the hole) is sequentially inserted into an external grout stopper 11 (which is in the shape of a truncated cone) and a tray 8, and is fastened with the anchor cable anchor 10, and the plug 9 is used for Plug the grouting pipe 7. During use, before the external grouting plug 11 is installed, smear on the outer peripheral side of the external grouting plug 11 (here used to fill the gap between the outer peripheral side of the external grouting plug 11 and the bell mouth 4 of the surrounding rock mass) Ma Lisan, and apply Ma Lisan between the steel strand 6 and the gap 2 of the external grouting plug 11. The g...
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