Device for grouting and reinforcing fractures of grotto cataclastic rock mass

Abstract

The utility model provides a device for grouting and reinforcing fractures of grotto cataclastic rock mass. The device comprises a slurry storage barrel, a liquid guide pipe, a liquid guide valve, a liquid distribution pipe, a sealing film, a front vacuum pipe, a vacuum pressure gauge, a vacuum valve, a liquid collection bottle, a rear vacuum pipe and a vacuum pump. The sealing film has the following advantages that (1) the sealing film can be well attached to the surface of the cataclastic rock mass, and favorable grouting conditions with high vacuum degree are created; and (2) the sealing film is convenient to mount and dismount, and time and labor are saved. And (3) due to the generation of vacuum, the reinforcing liquid can be automatically distributed on all cracks on the surface of the rock mass, so that the cracks with various widths can be grouted, and the problem that fine cracks cannot be grouted by the existing crack sealing and grouting technology is solved. And (4) when the vacuum pump works, gas between the sealing film and the rock mass is pumped out, meanwhile, part of gas in the rock mass is pumped out, and the permeation effect of the reinforcing liquid in cracks on the surface of the rock mass is improved. (5) consumables are only a liquid storage barrel, a liquid collection bottle, a plurality of conduits and the like, so that the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of fractured rock mass fissure reinforcement, in particular to a device for grouting reinforcement of fractured rock mass fissures in caves. Background Art

[0002] At present, the main method for grouting reinforcement of cracks on the surface of grout rock mass is to seal the cracks with cementitious materials such as cement mortar, then bury the grouting pipe, use the grouting machine to pour the slurry into the cracks through the grouting pipe, and after the grouting is completed, remove the grouting pipe and repair the surface. However, for broken rock mass, due to the large number of cracks and some small crack widths, the above-mentioned sealing and grouting methods have the following problems: 1) There are many cracks, and the sealing and burying of pipes requires a large amount of work to bury and remove the grouting pipes, and cracks are easily missed during grouting; 2) For fine cracks, due to the small crack width, it is impossible to seal and bury the pipe, resulting in failure of grouting. 3) During the grouting process, the diameter of the grouting pipe is small and it is easy to get blocked, resulting in partial failure, and the cracks are not filled fully and densely, affecting the grouting quality. Utility Model Content

[0003] In view of the defects in the prior art, the utility model provides a device for grouting and reinforcing cracks in fractured rock masses in caves, which can effectively solve the above problems.

[0004] The technical solution adopted by the utility model is as follows:

[0005] The utility model provides a device for grouting and reinforcing cracks in a fractured rock mass of a cave, comprising a grout storage barrel (1), a liquid guide pipe (2), a liquid guide valve (3), a liquid distribution pipe (4), a sealing film (5), a front vacuum pipe (8), a vacuum pressure gauge (9), a vacuum valve (10), a liquid collecting bottle (11), a rear vacuum pipe (12) and a vacuum pump (13);

[0006] The sealing film (5) is used to seal and wrap the surface of the broken rock mass (6); the liquid distribution pipe (4) and the front vacuum pipe (8) are arranged between the sealing film (5) and the surface of the broken rock mass (6); one end of the liquid distribution pipe (4) is led out from the sealing film (5) and the liquid guide valve (3) is installed; the other end of the liquid guide valve (3) is connected to one end of the liquid guide pipe (2); the other end of the liquid guide pipe (2) is inserted into the slurry storage barrel (1); one end of the front vacuum pipe (8) is led out from the sealing film (5), passes through the vacuum pressure gauge (9) and the vacuum valve (10), and then passes into the liquid collecting bottle (11); one end of the rear vacuum pipe (12) is inserted into the liquid collecting bottle (11), and the other end of the rear vacuum pipe (12) is connected to the vacuum pump (13).

[0007] Preferably, the liquid distribution pipe (4) and the front vacuum pipe (8) are fixed to the surface of the fractured rock mass (6) with waterproof tape.

[0008] Preferably, the liquid distribution pipe (4) is arranged on one side of the fractured rock mass (6); the front vacuum pipe (8) is arranged on the other side of the fractured rock mass (6).

[0009] Preferably, for the part of the liquid distribution pipe (4) inside the sealing film (5), grouting holes are provided on its side surface.

[0010] Preferably, for the part of the front vacuum pipe (8) inside the sealing film (5), openings are provided on its side surface.

[0011] Preferably, the pipe head of the front vacuum pipe (8) inside the sealing film (5) is higher than the pipe head outside the sealing film (5), and there is a liquid pressure difference between the two.

[0012] Preferably, the slurry storage barrel (1) has a cover with a reserved orifice; this orifice is used to insert the liquid guiding pipe (2).

[0013] Preferably, the bottle cap of the liquid collection bottle (11) has two externally connected holes. Two short pipes are pre-installed in the two holes. One end of the two short pipes is inserted into the interior of the liquid collection bottle (11), and the other end is used to communicate with the front vacuum pipe (8) and the rear vacuum pipe (12) respectively.

[0014] Preferably, the sealing film (5) is a PE plastic sheet; the liquid guiding pipe (2), the liquid distribution pipe (4), the front vacuum pipe (8) and the rear vacuum pipe (12) are made of elastic and airtight materials.

[0015] Preferably, the liquid guiding valve (3) and the vacuum valve (10) are check valves.

[0016] The device for grouting and reinforcement of fractures in fractured rock masses of grottoes provided by the present utility model has the following advantages:

[0017] (1) The sealing film can better fit the surface of the fractured rock mass, creating favorable conditions for grouting with high vacuum.

[0018] (2) The installation and removal of the sealing film are relatively convenient, saving time and effort.

[0019] (3) Due to the generation of vacuum, the reinforcement liquid can automatically distribute to all the fractures on the surface of the rock mass, enabling fractures of various widths to be grouted, and solving the problem that the current crack-sealing grouting technology cannot grout micro-fractures.

[0020] (4) When the vacuum pump works, the gas between the sealing film and the rock mass is pumped out, and at the same time, part of the gas inside the rock mass is also pumped out, improving the penetration effect of the reinforcement liquid in the cracks on the surface of the rock mass.

[0021] (5) The consumables are only a liquid storage barrel, a liquid collection bottle, several conduits, etc., saving costs. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the device for grouting reinforcement of fractured rock mass in grottoes provided by the present utility model;

[0023] Figure 2 It is a schematic diagram of the liquid guiding part structure provided by the present utility model;

[0024] Figure 3 It is a schematic diagram of the perfusion part structure provided by the present utility model;

[0025] Figure 4 It is a schematic diagram of the vacuum connection section structure provided by the present utility model;

[0026] Figure 5 It is a schematic diagram of the vacuum - collection part structure provided by the present utility model.

[0027] Wherein:

[0028] 1. Liquid storage barrel, 2. Liquid guiding pipe, 3. Liquid guiding valve, 4. Liquid distributing pipe, 5. Sealing film, 6. Fractured rock mass, 7. Crack, 8. Front vacuum pipe, 9. Vacuum pressure gauge, 10. Vacuum valve, 11. Liquid collection bottle, 12. Rear vacuum pipe, 13. Vacuum pump. Detailed Embodiment

[0029] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] Refer to Figures 1 to 5 , the present utility model provides a device for grouting reinforcement of fractured rock mass in grottoes, including a liquid storage barrel 1, a liquid guiding pipe 2, a liquid guiding valve 3, a liquid distributing pipe 4, a sealing film 5, a front vacuum pipe 8, a vacuum pressure gauge 9, a vacuum valve 10, a liquid collection bottle 11, a rear vacuum pipe 12 and a vacuum pump 13;

[0031] The surface of the fractured rock mass 6 is hermetically wrapped with a sealing film 5; the fractured rock mass 6 has fissures 7, and the fissures 7 are all obvious fissures on the surface of the fractured rock mass 6. A liquid distribution pipe 4 and a front vacuum pipe 8 are arranged between the sealing film 5 and the surface of the fractured rock mass 6; one end of the liquid distribution pipe 4 is led out from inside the sealing film 5, and a liquid guiding valve 3 is installed; the other end of the liquid guiding valve 3 is connected to one end of a liquid guiding pipe 2; the other end of the liquid guiding pipe 2 is inserted into a slurry storage barrel 1; one end of the front vacuum pipe 8 is led out from inside the sealing film 5, and after passing through a vacuum pressure gauge 9 and an adjustable vacuum valve 10, it is led into a liquid collecting bottle 11; one end of a rear vacuum pipe 12 is inserted into the liquid collecting bottle 11, and the other end of the rear vacuum pipe 12 is connected to a vacuum pump 13.

[0032] In specific implementation, there are also the following design features:

[0033] The liquid distribution pipe 4 and the front vacuum pipe 8 are fixed to the surface of the fractured rock mass 6 with waterproof tape.

[0034] The liquid distribution pipe 4 is arranged on one side of the fractured rock mass 6; the front vacuum pipe 8 is arranged on the other side of the fractured rock mass 6. That is to say, the liquid distribution pipe 4 and the front vacuum pipe 8 are in the gap between the sealing film 5 and the fractured rock mass 6 and are in two relatively far positions, so as to avoid the slurry during the grouting process from blocking the pipe orifice of the front vacuum pipe 8, resulting in a decrease in the vacuum pumping effect.

[0035] For the part of the liquid distribution pipe 4 inside the sealing film 5, a plurality of grouting holes are provided on its side surface to enhance the grouting effect and enable the smooth completion of grouting in the case of partial blockage of some holes.

[0036] For the part of the front vacuum pipe 8 inside the sealing film 5, a plurality of openings are provided on its side surface to enhance and maintain the vacuum pumping effect and enable the smooth completion of the vacuum pumping process in the case of partial blockage of some holes.

[0037] The pipe head of the front vacuum pipe 8 inside the sealing film 5 is higher than the pipe head outside the sealing film 5 to ensure that there is a liquid pressure difference between the two, and the excess reinforcement liquid can naturally flow into the liquid collecting bottle 11 through the front vacuum pipe 8 under the condition of gravity.

[0038] The slurry storage barrel 1 has a cover with a reserved orifice; this orifice is used for inserting the liquid guiding pipe 2, and through the reserved orifice, the installation efficiency of the liquid guiding pipe 2 is improved.

[0039] The bottle cap of the liquid collecting bottle 11 has two externally connected holes, and two short pipes are pre-installed in the two holes. One end of the two short pipes is inserted into the inside of the liquid collecting bottle 11, and the length entering the liquid collecting bottle 11 does not exceed 5 cm, and the other end is used to communicate with the front vacuum pipe 8 and the rear vacuum pipe 12 respectively.

[0040] The sealing film 5 is a PE plastic sheet, which can be manually operated to fit closely with the fragmented rock mass 6; the liquid guiding pipe 2, the liquid distributing pipe 4, the front vacuum pipe 8 and the rear vacuum pipe 12 are made of elastic airtight materials, specifically high-ductility and high-elasticity materials, and have good airtightness. The liquid guiding valve 3 and the vacuum valve 10 are check valves and have a check effect.

[0041] The vacuum pump 13 can be equipped with a vacuum pressure gauge 9, which can ensure the integrity of the pipe body of the rear vacuum pipe 12, is conducive to improving the vacuum pumping speed and the overall grouting efficiency.

[0042] Therefore, a device for grouting and strengthening the cracks of fragmented rock masses in grottoes provided by the present utility model includes a slurry storage barrel 1, a liquid guiding pipe 2, a liquid guiding valve 3, a liquid distributing pipe 4, a sealing film 5, a front vacuum pipe 8, a vacuum pressure gauge 9, a vacuum valve 10, a liquid collecting bottle 11, a rear vacuum pipe 12 and a vacuum pump 13. The liquid guiding pipe 2 is inserted into the slurry storage barrel 1 filled with the strengthening slurry. The end of the liquid guiding pipe 2 is connected to the liquid guiding valve 3, and the liquid distributing pipe 4 is connected behind the liquid guiding valve 3. The liquid distributing pipe 4 is placed between the sealing film 5 and the fragmented rock mass 6; at the same time, the front vacuum pipe 8 is placed between the sealing film 5 and the fragmented rock mass 6, and a vacuum pressure gauge 9 and a vacuum valve 10 are installed in the middle of the front vacuum pipe 8. The front vacuum pipe 8 is finally inserted into the liquid collecting bottle 11.

[0043] Steps: (1) Use the sealing film 5 to seal and wrap the rock mass. The liquid distributing pipe 4 and the front vacuum pipe 8 are arranged between the sealing film 5 and the rock mass. The liquid distributing pipe 4 led out is provided with a liquid guiding valve 3 to control the entry and exit of the strengthening liquid. The other end of the liquid guiding valve 3 is connected to one end of the liquid guiding pipe 2, and the other end of the liquid guiding pipe 2 is inserted into the slurry storage barrel 1; (2) The front vacuum pipe 8 led out is passed through the vacuum pressure gauge 9 and the vacuum valve 10 into the liquid collecting bottle 11. The liquid collecting bottle 11 is used to collect the excess strengthening liquid. The rear vacuum pipe 12 led out from the liquid collecting bottle 11 is connected to the vacuum pump 13. Open the vacuum valve 10, start the vacuum pump 13, and pump out the gas between the sealing film 5 and the rock mass, and at the same time pump out part of the gas inside the rock mass; (3) When a certain vacuum degree is reached, open the liquid guiding valve 3, and the strengthening liquid will automatically cover the entire fragmented rock mass 6; (4) Then close the liquid guiding valve 3 and the vacuum valve 10 and keep for a certain period of time; open the vacuum valve 10 to discharge the excess strengthening liquid; (5) Open the sealing film 5, dry the surface of the rock mass, and after the strengthening liquid solidifies, a relatively ideal strengthening effect can be achieved.

[0044] A device for grouting and strengthening the cracks of fragmented rock masses in grottoes provided by the present utility model has the following detailed usage method:

[0045] Step 1: Fix the liquid distributing pipe 4 and the front vacuum pipe 8 on the surface of the fragmented rock mass 6 with waterproof tape.

[0046] Step 2: Use the sealing film 5 to wrap and seal the fragmented rock mass 6 together with the liquid distributing pipe 4 and the front vacuum pipe 8.

[0047] Step 3: Install a liquid guide valve 3 at the end part of the liquid distribution pipe 4 that leads out of the sealing film 5, and keep the valve closed.

[0048] Step 4: Install a liquid extraction pipe 2 at the other end of the liquid guide valve 3, and insert the liquid extraction pipe 2 into the slurry storage bucket 1 filled with reinforcement liquid.

[0049] Step 5: Install a vacuum pressure gauge 9 and a vacuum valve 10 at the end part of the front vacuum pipe 8 that leads out of the sealing film 5, and keep the valve in a closed state.

[0050] Step 6: Install another section of the front vacuum pipe 8 behind the vacuum valve 10, and connect the end to one of the holes in the liquid collection bottle 11.

[0051] Step 7: Connect one end of the rear vacuum pipe 12 to the other hole in the liquid collection bottle 11.

[0052] Step 8: Connect the other end of the rear vacuum pipe 12 to the vacuum pump 13.

[0053] Step 9: Open the liquid guide valve 3 and the vacuum valve 10, and start the vacuum pump 13 to start grouting the fractured rock mass 6.

[0054] Step 10: Wait until the reinforcement liquid covers the fractured rock mass 6, the cracks 7 on it are filled with the reinforcement liquid, and at the same time the vacuum degree reaches more than 85%, then close the liquid guide valve 3 and the vacuum valve 10, and keep it for a period of time.

[0055] Step 11: Open the vacuum valve 10, and with the assistance of the vacuum pump 13, discharge the excess reinforcement liquid into the liquid collection bottle 11.

[0056] Step 12: Close the vacuum valve 10 and the vacuum pump 13, and the grouting is completed.

[0057] Step 13: Uncover the sealing film 5, and dry the surface of the fractured rock mass 6, especially the part of the cracks 7.

[0058] Step 14: The grouting of the fractured rock mass 6 is completed.

[0059] The device for grouting and reinforcement of cracks in fractured rock masses of grottoes provided by the present utility model has the following advantages:

[0060] (1) The sealing film can better fit the surface of the fractured rock mass, creating favorable conditions for high-vacuum grouting.

[0061] (2) The installation and removal of the sealing film are relatively convenient, saving time and effort.

[0062] (3) Due to the generation of vacuum, the reinforcement liquid can automatically cover all the cracks on the surface of the rock mass, so that cracks of various widths can be grouted, solving the problem that the current crack-sealing grouting technology cannot grout micro-cracks.

[0063] (4) When the vacuum pump is working, the gas between the sealing film and the rock mass is pumped out, and at the same time, part of the gas inside the rock mass is also pumped out, improving the penetration effect of the reinforcement liquid in the surface cracks of the rock mass.

[0064] (5) The consumables are only the liquid storage barrel, the liquid collection bottle, several conduits, etc., saving costs.

[0065] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A device for grouting and reinforcing cracks in fractured rock mass of caves, characterized in that: It comprises a slurry storage barrel (1), a liquid guide pipe (2), a liquid guide valve (3), a liquid distribution pipe (4), a sealing film (5), a front vacuum pipe (8), a vacuum pressure gauge (9), a vacuum valve (10), a liquid collection bottle (11), a rear vacuum pipe (12) and a vacuum pump (13); The sealing film (5) is used to seal and wrap the surface of the broken rock mass (6); the liquid distribution pipe (4) and the front vacuum pipe (8) are arranged between the sealing film (5) and the surface of the broken rock mass (6); one end of the liquid distribution pipe (4) is led out from the sealing film (5) and the liquid guide valve (3) is installed; the other end of the liquid guide valve (3) is connected to one end of the liquid guide pipe (2); the other end of the liquid guide pipe (2) is inserted into the slurry storage barrel (1); one end of the front vacuum pipe (8) is led out from the sealing film (5), passes through the vacuum pressure gauge (9) and the vacuum valve (10), and then passes into the liquid collecting bottle (11); one end of the rear vacuum pipe (12) is inserted into the liquid collecting bottle (11), and the other end of the rear vacuum pipe (12) is connected to the vacuum pump (13).

2. The device for grouting and reinforcing cracks in fractured rock mass of caves according to claim 1 is characterized in that: The liquid distribution pipe (4) and the front vacuum pipe (8) are fixed to the surface of the fractured rock mass (6) by using waterproof tape.

3. The device for grouting and reinforcing cracks in fractured rock mass of caves according to claim 1 is characterized in that: The liquid distribution pipe (4) is arranged on one side of the fractured rock mass (6); and the front vacuum pipe (8) is arranged on the other side of the fractured rock mass (6).

4. The device for grouting and reinforcing cracks in fractured rock mass of caves according to claim 1 is characterized in that: The portion of the liquid distribution pipe (4) inside the sealing film (5) is provided with a grouting hole on its side.

5. The device for grouting and reinforcing cracks in fractured rock mass of caves according to claim 1 is characterized in that: The part of the front vacuum tube (8) inside the sealing film (5) is provided with an opening on its side.

6. The device for grouting and reinforcing cracks in fractured rock mass of caves according to claim 1 is characterized in that: The tube head of the front vacuum tube (8) inside the sealing membrane (5) is higher than the tube head outside the sealing membrane (5), and there is a liquid pressure difference between the two.

7. The device for grouting and reinforcing cracks in fractured rock mass of caves according to claim 1 is characterized in that: The slurry storage barrel (1) has a cover with a reserved outlet opening; the outlet opening is used for inserting the liquid introduction tube (2).

8. The device for grouting and reinforcing cracks in fractured rock mass of caves according to claim 1 is characterized in that: The bottle cap of the liquid collecting bottle (11) has two holes communicating with the outside, and two short tubes are pre-installed in the two holes. One end of the two short tubes is inserted into the interior of the liquid collecting bottle (11), and the other end is used to communicate with the front vacuum tube (8) and the rear vacuum tube (12) respectively.

9. The device for grouting and reinforcing cracks in fractured rock mass of caves according to claim 1, characterized in that: The sealing film (5) is a PE plastic cloth; the liquid introduction tube (2), the liquid distribution tube (4), the front vacuum tube (8) and the rear vacuum tube (12) are made of elastic and airtight materials.

10. The device for grouting and reinforcing cracks in fractured rock mass of caves according to claim 1, characterized in that: The liquid guide valve (3) and the vacuum valve (10) are check valves.

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