Mud-sealed rock mass supporting method suitable for argillization rock

Abstract

The invention belongs to the technical field of mining equipment, and particularly relates to a mud-sealed rock mass supporting method suitable for argillization rock. A hand-held guniting mechanism is provided and comprises a bottom plate; supporting wheels are installed at the bottom of the bottom plate; a rear fixing base is installed on the top face of the bottom plate and rotationally connected with the bottom end of an electric push rod through a lower connecting base; the top end of the rear fixing base is rotationally connected with the side face of a sliding sleeve; the top end of the electric push rod is rotationally connected with an arc-shaped bottom plate; an inner sliding rod is installed on the inner side of an outer fixing sleeve connected with the arc-shaped bottom plate in a sliding mode; the inner sliding rod is fixedly connected with a lower fixing plate through a connecting block; a damping spring is fixedly arranged between the inner sliding rod and the outer fixing sleeve; the lower fixing plate and an upper fixing plate are fixedly arranged on the outer side of a quick-connection type slurry spray head in a sleeving mode; the rear side of the top face of the bottom plate is connected with an anti-skid grab handle and a U-shaped frame through a lower connecting frame, a transverse pipe and an upper connecting frame; the outer side of the U-shaped frame is sleeved with a buffer sleeve; the U-shaped frame and the buffer sleeve can achieve the auxiliary supporting effect; and the damping spring and a shock pad can achieve buffering and energy absorption, and and the workload of personnel is relieved.

Description

technical field [0001] The invention belongs to the technical field of mining equipment, and in particular relates to a mud-sealing rock mass support method suitable for muddy rock. Background technique [0002] The hard rock itself can play a good supporting role, especially when the mining depth is not too large. However, if the roadway is excavated in soft rock and weak rock with complex components, the support will encounter great difficulties. Therefore, Chinese and foreign scholars and engineers and technicians engaged in mine support work have long regarded the qualitative understanding and countermeasures of soft rock as an important research topic. [0003] Rocks in the natural state can be divided into consolidated rocks, cohesive rocks, granular rocks, and fluid rocks (such as quicksand) according to the bonding characteristics between their solid mineral particles. The so-called consolidated rock refers to a rock in which solid particles of rock-forming mineral...

AI Technical Summary

Problems solved by technology

From the point of view of mine pressure control, such rocks often cause great difficulties in support work

[0005] By adopting distributed grouting and multi-level support for the roadway after mud replacement, the initial strength of the support can be effectively improved, the construction safety can be ensured, and the foundation can be provided for continuous grouting reinforcement in the later stage. However, considering environmental factors and Due to the cost factor, the grouting operation in the narrow roadway space is carried out by manually holding the mortar nozzle. The recoil and vibration force generated by the mortar nozzle during the grouting process consumes a lot of physical energy of the human body, which is not conducive to grouting Continuity of work and safe work

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