Grouting device for high rock burst and using method

Abstract

The invention relates to a grouting device for high rock burst and a using method. The grouting device for the high rock burst comprises a base, a roadway drilling mechanism, a multi-spray-layer sealing layer mechanism and a roadway grouting mechanism, wherein the roadway drilling mechanism, the multi-spray-layer sealing layer mechanism and the roadway grouting mechanism are sequentially arranged at the top of the base from left to right; the roadway drilling mechanism is composed of a first supporting plate, an angle adjusting mechanism, a sliding rail, a first hydraulic cylinder and a drilling motor, the sliding rail is fixedly connected to the top of the first supporting plate, the angle adjusting mechanism is composed of a self-moving air cylinder, a second hydraulic cylinder, a connecting rod and a second supporting plate, and the second hydraulic cylinder is fixedly connected to the top of the self-moving air cylinder; the self-moving air cylinder is slidably connected to the sliding rail, the two ends of the connecting rod are rotationally connected with the second hydraulic cylinder and the second supporting plate through pin shafts correspondingly, the functions of multi-position multi-angle adjusting drilling, concrete mortar extruding and trowelling and multi-position simultaneous grouting are achieved, and the construction efficiency of a homogeneous isotropic supporting ring body is effectively improved.

Description

technical field [0001] The invention relates to a grouting device for high impact rock pressure and a use method thereof, belonging to the field of coal mine underground equipment. Background technique [0002] The weak rock and coal body of the surrounding rock of deep mine roadway, under the action of complex multi-level high stress, its homogeneity, anisotropy and discontinuity are more obvious, and the compressive, tensile and shear strength of the rock and coal body itself and It is weak, and the high stress effect is more obvious. Without changing the state of the surrounding rock mass, it is difficult to achieve support stability and surrounding rock control. [0003] Constructing a homogeneous and homogeneous support ring body in a high-stress weak rock-coal mass means that in this ring body, multi-layer anchor rods and grouting anchor rods are placed in the surrounding rock evenly and at different depths, so that the unit rock The density of the bolt combination in...

AI Technical Summary

Problems solved by technology

[0008] Due to the construction of a homogeneous and isotropic support circle, the grouting density of the bolt increases compared with the grouting workload of the traditional support method, and the efficiency of traditional grouting equipment is low when used to construct a homogeneous and isotropic support circle. And it can't meet the actual support situation well.

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