A Supporting Method for Sealed and Mudified Rock Mass Applicable to Mudified Rock

Abstract

The invention belongs to the technical field of mining equipment, and in particular relates to a mud-sealed rock mass support method suitable for argillaceous rocks, which includes a hand-held spraying mechanism, which includes a bottom plate, and a support is installed at the bottom of the bottom plate The top surface of the bottom plate is equipped with a rear fixing seat and is connected to the bottom end of the electric push rod through the lower connecting seat. The top of the rear fixing seat is rotatably connected to the side of the sliding sleeve. The inner sliding rod is slidably installed on the inner side of the sleeve. The inner sliding rod is fixedly connected to the lower fixing plate through the connecting block and a damping spring is fixed between the inner sliding rod and the outer fixing sleeve. The lower fixing plate and the upper fixing plate are fixed on the quick-connect slurry nozzle. On the outside, the rear side of the top surface of the bottom plate is connected with a non-slip handle and a U-shaped frame through the lower connecting frame, the horizontal pipe, and the upper connecting frame. The outer side of the U-shaped frame is equipped with a buffer sleeve, which can play an auxiliary role The role of support, damping springs and shock absorbing pads can buffer and absorb energy, reducing the workload of personnel.

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

Images