A rapid grouting drilling equipment for roadway floor

Abstract

The invention provides a rapid grouting drilling device for a roadway base plate. The rapid grouting drilling device for the roadway base plate comprises a machine head, a machine seat and a drill rod component, wherein the machine head is installed on the machine seat, the machine head comprises a compression pump, a drill rod grout pipe and a drill machine head, an output end of the compression pump is communicated with an inner hole of the drill rod grout pipe, the drill rod grout pipe passes through the drill machine head, the drill rod component comprises a grouting rod and a drill rod, the tail end of the drill rod is connected with a drill rod connector, and the tail end of the grouting rod is connected with a grouting rod connector. The rapid grouting drilling device for the roadway base plate uses the drill rod component driven by a drill rig to drill holes, and simultaneously performs grouting, and thereby can successfully excavate into the deep of the roadway base plate so as to form holes which meet requirements by breaking a soft stratum, and is high in hole forming efficiency and large in hole forming depth.

Description

technical field [0001] The invention relates to a groutable drilling rig, in particular to a rapid grouting drilling equipment used for the roadway floor. Background technique [0002] At present, with the large deformation and instability of high-stress roadways, the cost of excavation and maintenance of many projects has doubled, which not only poses safety hazards to the working environment of workers, but also greatly hinders the normal production of mines. Generally speaking, the deformation of the roadway with high stress and weak surrounding rock is of the whole section nature, not only in the two sides and the vault of the roadway, but also the phenomenon of floor swelling. The deformation of the bottom plate has a great impact on the roadway, which not only reduces the section of the roadway, but also destroys the bottom plate foundation and track of the equipment, which greatly affects the transportation and ventilation conditions of the roadway. For the treatment...

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Problems solved by technology

However, the implementation of these measures requires drilling into the floor rock mass, and the quality of the drilling construction directly affects the quality of the anchor rod and anchor cable installation.

[0003] In the past, most floor drilling rigs used in mine roadways were rotary twist drill drilling rigs. This kind of drilling rig is widely used, especially when drilling holes in the roof. , but when meeting the floor, especially the floor that is broken, weak, water-containing, high gas, etc., there will be a phenomenon that the deep debris cannot be removed and the drill will be stuck; the rock is broken and easy to collapse, making it difficult for the anchoring agent to be well fixed on the In the loose rock body, the anchoring force is small; water and high gas will destroy the hole-forming effect of the drill hole, resulting in the inability to install long anchor cables, resulting in long-term high stress, broken and weak surrounding rock roadway floor deformation can not be controlled If it is not completely solved, the key lies in the fact that the construction problems of the bottom plate drilling and anchor cables have not been completely solved

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