RESEARCH ON THE VENTING AND PRESSURE STABILIZING EFFECT MECHANISM OF PACKER
In order to solve the problem of insufficient grouting fullness and poor anchoring effect of existing hollow bolts,a new type of packers is proposed with the optimization goal of stopping slurry effect of packers,and numerical simulation method is used to systematically study the mechanism of exhausting and stabilizing pressure of the packer,analyzed the stopping effect of the new type of packers.The results show that:the new type packer realizes the function of exhausting and stabilizing pressure through the exhaust groove,the structure of closed can and the relative extrusion of inner and outer packers,which can solve the problem of exhausting and stabilizing pressure in the process of anchor grouting without changing the on-site construction process,and ensure the denseness of the anchor grouting.
hollow grouting boltpackersventing and pressure stabilizingnumerical simulation
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