A fracturing top-loading resin charge assembly sleeve tool and method of use thereof

Abstract

The application discloses a broken roof filling resin cartridge combined casing tool, which comprises a casing and a geological layer, the casing comprises a front end, a middle end and a rear end, the geological layer comprises a stable rock layer, a broken rock layer, a broken coal layer and a roadway layer from top to bottom, an opening part is arranged at the top of the front end of the casing, the opening part is fixedly connected with the casing, an anchor rod is arranged at the bottom of the rear end of the casing, and the anchor rod is fixedly connected with the rear end of the casing; the application can effectively solve the problems of drilling waste, the fact that a cartridge does not break at a stable rock layer, difficulty in hole forming and hole fixing and low efficiency in the process of filling an anchor rod resin cartridge after drilling of a broken roof of a roadway, realizes fast and effective filling of an anchor rod cable resin cartridge for the broken roof of the roadway, and provides a powerful guarantee for solving the separation problem of the roof of the roadway.

Description

Technical Field

[0001] This invention belongs to the field of coal mining, and more specifically, this invention relates to a composite sleeve tool for filling resin cartridges in the crushed roof and its usage method. Background Technology

[0002] Rock bolts and anchor cables have been common components of tunnel and shaft engineering support since the 1980s. They reinforce the surrounding rock and provide active support based on principles such as suspension, combined arch, or compression arch. High-stress roof fracture is one of the most common problems in tunnel and shaft engineering construction, and timely support of fractured roofs is an urgent engineering issue. Currently, the support for fractured roofs in tunnels is mostly a combination of active and passive support using a combination of scaffolding and rock bolts / anchor cables. However, after drilling holes in the fractured roof, the holes are often re-blocked when the drilling tool is withdrawn due to severe rock fracture. When filling resin cartridges, the holes may fail to reach stable rock layers, resulting in abandoned drilling and the need for re-drilling. Even if simple casing preserves the hole, the casing or drill rod connection is easily blocked when pushing the anchoring agent, thus wasting considerable manpower, resources, and time. Therefore, there is a lack of effective filling tools for efficiently filling rock bolts / anchor cables with resin cartridges after drilling holes in fractured roofs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a time-saving, labor-saving and efficient combination sleeve tool for filling resin cartridges into broken roofs and its usage method.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a combined casing tool for filling resin cartridges in broken roofs, comprising a casing and a geological layer. The casing includes a front end, a middle end, and a rear end. The geological layer includes, from top to bottom, a stable rock layer, a broken rock layer, a broken coal seam, and a roadway layer. An opening is provided at the top of the front end of the casing, and the opening is fixedly connected to the casing. An anchor rod is provided at the bottom of the rear end of the casing, and the anchor rod is fixedly connected to the rear end of the casing.

[0005] The present invention discloses a combined sleeve tool for filling resin cartridges in a broken roof. A first connecting groove is provided between the front end and the middle end, and a second connecting groove is provided between the middle end and the rear end. The first connecting groove is detachably connected to the front end and the middle end, and the second connecting groove is detachably connected to the middle end and the rear end.

[0006] The present invention discloses a combined sleeve tool for filling resin cartridges into a broken roof, wherein the first connecting groove and the second connecting groove each include a connecting groove protruding end and a connecting groove recessed end, and the connecting groove protruding end and the connecting groove recessed end are engaged with each other.

[0007] The present invention discloses a combined sleeve tool for filling resin cartridges into a broken roof, wherein the opening part includes an arc-shaped curved triangular piece and an arc-shaped curved triangular piece lifting device, and the arc-shaped curved triangular piece and the arc-shaped curved triangular piece lifting device are fixedly connected.

[0008] The present invention discloses a combination sleeve tool for filling resin cartridges into broken roofs. The outer bottom side of the rear end is provided with a signal transmitting device, which is fixedly connected to the rear end. The sleeve is provided with a signal transmission line. One end of the transmission line is fixedly connected to the signal transmitting device, and the other end passes through the first connecting slot, the second connecting slot and the arc-shaped bending triangular lifting device, and then returns to the signal transmitting device to complete a closed loop.

[0009] The present invention discloses a composite sleeve tool for filling resin cartridges in a broken roof, wherein the middle part can be snapped multiple times according to the height of the geological layer while ensuring that the physical properties remain unchanged.

[0010] The present invention discloses a method for using a resin cartridge combination sleeve tool for breaking up roofs, comprising the following steps:

[0011] S1: Use a bolt drilling rig to drill upwards towards the top of the roadway. The drilling passes through the broken coal zone, broken rock and stable rock in sequence. While removing the drill rod, the broken small pieces of coal and rock re-plug the drill hole.

[0012] S2: Connect the protruding end of the first connecting slot at the front end to the recessed end of the first connecting slot in the middle end, and continue to push it in so that the opening end at the front end passes through the broken coal seam and the broken rock layer.

[0013] S3: Connect the protruding end of the second connecting slot in the middle to the recessed end of the second connecting slot at the rear.

[0014] S4: The resin cartridge is pushed from the rear end to the opening end of the front end by the anchor rod. A signal is sent from the signal sending device at the rear end and transmitted to the opening end by the signal transmission line. After receiving the signal, the arc bending triangle lifting device at the opening end descends, driving the arc bending triangle to descend. After the arc bending triangle descends, the opening end opens into a thin-walled tube shape.

[0015] S5: Finally, with the anchor rod pressing against the resin cartridge and remaining stationary in the stable rock layer, disassemble the combined casing tool sequentially from the rear end until the entire combined casing tool is removed. Finally, use the anchor rod to puncture the resin cartridge.

[0016] The present invention can effectively solve the problems of drilling failure, failure of the resin cartridge to break at stable rock strata, difficulty in hole formation and consolidation, and low efficiency in the process of filling anchor bolt resin cartridges after drilling holes in the broken roof of roadways. It realizes the rapid and effective filling of anchor bolt and anchor cable resin cartridges in the broken roof of roadways, and provides a strong guarantee for solving the problem of delamination of the roadway roof.

[0017] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0019] Figure 1 This is a schematic diagram of an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the planar structure of the present invention;

[0021] Figure 3 This is a top view of the connecting slot structure of the present invention;

[0022] Figure 4 This is a side view of the connecting slot structure of the present invention;

[0023] Figure 5 This is a structural diagram of the protruding end of the connecting slot of the present invention;

[0024] Figure 6 This is a structural diagram of the recessed end of the connecting slot of the present invention;

[0025] The markings in the diagram are as follows: 1. Roadway layer; 2. Broken coal seam; 3. Broken rock layer; 4. Stable rock layer; 5. Resin cartridge; 6. Anchor bolt; 7. Signal transmission line; 8. Signal transmitting device; 91. First connecting slot; 92. Second connecting slot; 9(a) Protruding end of connecting slot; 9(b) Recessed end of connecting slot; 10. Opening end; 10(a) Curved triangular piece; 10(b) Curved triangular piece lifting device; 11. Front end; 12. Middle end; 13. Rear end; Detailed Implementation

[0026] The following description, with reference to the accompanying drawings, further details the specific implementation of the present invention, including the shape and structure of each component, the relative positions and connections between the parts, the function and working principle of each part, the manufacturing process, and the operation and use methods, so as to help those skilled in the art to have a more complete, accurate, and in-depth understanding of the inventive concept and technical solution of the present invention.

[0027] Figure 1 This is a schematic diagram of an embodiment of the present invention; Figure 2This is a schematic diagram of the planar structure of the present invention; as shown Figure 1 and Figure 2 The illustrated material is a composite casing tool for filling resin cartridges into a fractured roof, comprising a casing and a geological layer. The casing includes a front end 11, a middle end 12, and a rear end 13. The geological layer, from top to bottom, includes a stable rock layer 4, a fractured rock layer 3, a fractured coal seam 2, and a roadway layer 1. The front end 11 of the casing has an opening at its top, which is fixedly connected to the casing. The rear end of the casing has an anchor rod 6 at its bottom, which is fixedly connected to the rear end 12 of the casing. The opening 10 includes an arc-shaped curved triangular piece 10(a) and an arc-shaped curved triangular piece lifting device 10(b), which are fixedly connected. The middle end 12 can be repeatedly snapped together according to the height of the geological layer while ensuring that its physical properties remain unchanged.

[0028] Figure 3 This is a top view of the connecting slot structure of the present invention; Figure 4 This is a side view of the connecting slot structure of the present invention; Figure 5 This is a structural diagram of the protruding end of the connecting slot of the present invention; Figure 6 This is a structural diagram of the recessed end of the connecting slot of the present invention; as shown. Figure 3 , Figure 4 , Figure 5 and Figure 6 The aforementioned composite sleeve tool for filling resin cartridges into broken roof slabs has a first connecting groove 91 between the front end 11 and the middle end 12, and a second connecting groove 92 between the middle end 12 and the rear end 13. The first connecting groove 91 is detachably connected to the front end 11 and the middle end 12, and the second connecting groove 92 is detachably connected to the middle end 12 and the rear end 13. Both the first connecting groove 91 and the second connecting groove 92 include a connecting groove protrusion 9(a) and a connecting groove recess. End 9(b) is connected to the protruding end 9(a) of the connecting slot and the recessed end 9(b) of the connecting slot; a signal transmitting device 8 is provided on the outer bottom side of the rear end 13, and the signal transmitting device 8 is fixedly connected to the rear end 13. A signal transmission line 7 is provided inside the sleeve. One end of the signal transmission line 7 is fixedly connected to the signal transmitting device 8, and the other end passes through the first connecting slot 91, the second connecting slot 92 and the arc-shaped bending triangular piece lifting device 10(b) and then returns to the signal transmitting device 8 to complete a closed loop.

[0029] An anchor bolt drilling rig was used to drill a hole upwards towards the roof of the roadway. The hole passed sequentially through the broken coal seam 2, broken rock 3, and stable rock 4. While removing the drill rod, small pieces of broken coal and rock were used to re-plug the hole. The front end 11 of the casing was pushed into the newly drilled hole in the roof of roadway layer 1. The first connecting groove 91 of the front end 11 was connected to the first connecting groove 91 of the middle end 12, with the protruding end 9(a) and the recessed end 9(b). After assembly, the casing was pushed in further, allowing the open end of the front end 11 to pass through the broken coal seam 2 and the broken rock layer 3. The second connecting groove 92 of the middle end 12 was connected to the second connecting groove 92 of the rear end, with the protruding end 9(a) and the recessed end 9(b). Then continue pushing so that the opening end 10 of the front end 11 reaches the stable rock layer 4; the resin cartridge 5 is pushed from the rear end 13 to the opening end 10 of the front end 11 by the anchor rod 6; a signal is sent from the signal transmitting device 8 at the rear end 13 and transmitted to the opening end 10 by the signal transmission line 7; after receiving the signal, the arc bending triangular piece lifting device 10(b) of the opening end 10 descends, driving the arc bending triangular piece 10(a) to descend; after the arc bending triangular piece 10(a) descends, the opening end 10 opens into a thin-walled tube shape; finally, the anchor rod 6 holds the resin cartridge 5 in the stable rock layer 4 and does not move; the combined sleeve tool is disassembled from the rear end 13 in sequence until the entire combined sleeve tool is removed; finally, the anchor rod 6 is used to break the resin cartridge 5.

[0030] The present invention can effectively solve the problems of drilling failure, failure of the resin cartridge to break at stable rock strata, difficulty in hole formation and consolidation, and low efficiency in the process of filling anchor bolt resin cartridges after drilling holes in the broken roof of roadways. It realizes the rapid and effective filling of anchor bolt and anchor cable resin cartridges in the broken roof of roadways, and provides a strong guarantee for solving the problem of delamination of the roadway roof.

[0031] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A composite casing tool for filling resin cartridges into a broken roof, comprising a casing and a geological layer, characterized in that: The casing includes a front end, a middle end, and a rear end. The geological strata, from top to bottom, include a stable rock layer, a fractured rock layer, a fractured coal seam, and a roadway layer. The top of the front end of the casing is provided with an opening, which is fixedly connected to the casing. The bottom of the rear end of the casing is provided with an anchor rod, which is fixedly connected to the rear end of the casing. A first connecting slot is provided between the front end and the middle end, and a second connecting slot is provided between the middle end and the rear end. The first connecting slot is detachably connected to the front end and the middle end, and the second connecting slot is detachably connected to the middle end and the rear end. The outer bottom side of the rear end is provided with a signal transmitting device, which is fixedly connected to the rear end. The sleeve is provided with a signal transmission line. One end of the transmission line is fixedly connected to the signal transmitting device, and the other end passes through the first connecting slot, the second connecting slot and the arc-shaped bending triangular lifting device, and then returns to the signal transmitting device to complete a closed loop. A method for using a resin cartridge sleeve assembly tool for breaking up roofs includes the following steps: S1: Use a bolt drilling rig to drill upwards towards the top of the roadway. The drilling passes through the broken coal zone, broken rock and stable rock in sequence. While removing the drill rod, the broken small pieces of coal and rock re-plug the drill hole. S2: Connect the protruding end of the first connecting slot at the front end to the recessed end of the first connecting slot in the middle end, and continue to push it in so that the opening end at the front end passes through the broken coal seam and the broken rock layer. S3: Connect the protruding end of the second connecting slot in the middle to the recessed end of the second connecting slot at the rear. S4: The resin cartridge is pushed from the rear end to the opening end of the front end by the anchor rod. A signal is sent from the signal sending device at the rear end and transmitted to the opening end by the signal transmission line. After receiving the signal, the arc bending triangle lifting device at the opening end descends, driving the arc bending triangle to descend. After the arc bending triangle descends, the opening end opens into a thin-walled tube shape. S5: Finally, with the anchor rod pressing against the resin cartridge and remaining stationary in the stable rock layer, disassemble the combined casing tool sequentially from the rear end until the entire combined casing tool is removed. Finally, use the anchor rod to puncture the resin cartridge.

2. A composite sleeve tool for filling resin cartridges into a broken roof as described in claim 1, characterized in that, Both the first and second connecting slots include a protruding end and a recessed end, which are engaged with each other.

3. A composite sleeve tool for filling resin cartridges into a broken roof as described in claim 1, characterized in that, The opening portion includes an arc-shaped curved triangular piece and an arc-shaped curved triangular piece lifting device, and the arc-shaped curved triangular piece and the arc-shaped curved triangular piece lifting device are fixedly connected.

4. A composite sleeve tool for filling resin cartridges into a broken roof as described in claim 1, characterized in that, The middle section, while maintaining its physical properties, can be snapped together multiple times according to the height of the geological layer.

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