CN117072232A - Goaf filling grouting device and treatment method - Google Patents
Goaf filling grouting device and treatment method Download PDFInfo
- Publication number
- CN117072232A CN117072232A CN202311237798.7A CN202311237798A CN117072232A CN 117072232 A CN117072232 A CN 117072232A CN 202311237798 A CN202311237798 A CN 202311237798A CN 117072232 A CN117072232 A CN 117072232A
- Authority
- CN
- China
- Prior art keywords
- grouting
- pipe
- goaf
- slurry
- protection pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000002002 slurry Substances 0.000 claims abstract description 54
- 238000002156 mixing Methods 0.000 claims abstract description 45
- 238000005553 drilling Methods 0.000 claims abstract description 28
- 238000010276 construction Methods 0.000 claims abstract description 12
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000012423 maintenance Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 4
- 239000011440 grout Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/08—Filling-up hydraulically or pneumatically
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to the technical field of underground goaf treatment, in particular to a goaf filling grouting device, which comprises a mixing tank, a grouting pipe, a protection pipe, a limiting seat and other structures; the goaf treatment method comprises the steps of preliminary preparation, drilling operation, grouting operation, pipeline dismantling, post treatment and the like. The beneficial effects are as follows: the grouting device designed by the invention can seal the gap between the protection pipe and the grouting hole by utilizing the air bag when the underground pressure is higher, so as to prevent slurry from flowing upwards, the protection pipe can also be used for supporting the grouting pipe to avoid damage, meanwhile, the bottom of the protection pipe can be fixed at the bottom of the grouting hole by the limiting seat to prevent the grouting pipe from shaking or being ejected out of the grouting hole, and meanwhile, the grouting device can also select a conveying device or a form of a high-pressure grouting pump of the conveying device to provide slurry with different pressures according to different grouting stages and different grouting areas, thereby effectively meeting grouting requirements and ensuring stable and efficient construction process.
Description
Technical Field
The invention relates to the technical field of underground goaf treatment, in particular to a goaf filling grouting device and a treatment method.
Background
The underground goaf is generally an underground hole caused by manual excavation or natural geological movement, and due to the existence of the hole, the area above the hole is poor in structural stability and easy to collapse, so that the goaf needs to be treated when the space of the area is needed. The common treatment mode is to fill and grouting the goaf area, so that the structural stability of the goaf can be effectively improved after the slurry is solidified, and subsequent construction is facilitated.
When grouting is carried out on the goaf by adopting the existing method, when the internal pressure of the goaf is large, the bottom of the grouting pipe is easy to shake so as to be damaged, and meanwhile, the slurry is also easy to be sprayed out of the grouting hole and even the grouting pipe is propped out of the grouting hole, so that grouting operation is difficult to carry out efficiently, and equipment is easy to be damaged.
The invention provides a novel grouting device capable of effectively stabilizing the bottom of a grouting pipe in a grouting hole and preventing slurry from rushing out of the grouting hole and a matched goaf treatment method, so that the problems can be effectively solved.
Disclosure of Invention
The invention aims to provide a goaf filling grouting device and a treatment method, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: a goaf filling grouting device, the grouting device comprising:
the mixing tank is used for manufacturing slurry and is fixed at the top of the supporting table, the bottom of the mixing tank is fixedly provided with a conveying device for conveying the slurry, the output end of the conveying device is communicated with a flow distributor, and the slurry is conveyed to a corresponding number of flow distribution pipes through at least two material valves capable of being independently controlled to be opened and closed in the flow distributor;
the grouting pipe is used for being inserted into a grouting hole formed in the upper portion of the goaf and grouting the goaf, the top end of the grouting pipe is connected to two outlet ends of a reversing valve for distributing slurry flow direction through a first branch pipe and a second branch pipe respectively, the inlet end of the reversing valve is communicated with one of the distributing pipes on the distributor and receives slurry, a high-pressure grouting pump is fixedly arranged on the second branch pipe, and a pressure gauge for detecting slurry pressure is arranged on the grouting pipe;
the protection pipe is sleeved on the outer wall of the grouting pipe and used for preventing the grouting pipe from shaking or separating from the grouting hole, an air charging pipe, a first hydraulic pipe and a second hydraulic pipe are fixedly arranged in the protection pipe, an air bag which is used for clamping the inner wall of the grouting hole to place the protection pipe to shake through inflation is arranged outside the protection pipe, and the air charging pipe is connected with external air supply equipment through an air charging pump and charges air into the air bag;
the limiting seat is sleeved at the tail end of the grouting pipe and used for preventing the protection pipe from shaking or separating from the grouting hole, the top of the limiting seat is spliced at the bottom of the protection pipe through the splicing seat, the anti-falling push rod which is spliced by the limiting splicing seat is fixedly arranged at the bottom of the protection pipe, the first hydraulic pipe is communicated with the external hydraulic oil tank through the first hydraulic pump and is used for adjusting the limiting state of the tail end of the anti-falling push rod, at least one pair of limiting push rods which are symmetrically arranged in an inclined mode and are used for limiting through telescopic insertion into the grouting hole are arranged on the outer wall of the limiting seat, the splicing butt joint pipe which is spliced with the second hydraulic pipe and is communicated with the limiting push rod is arranged on the limiting seat, and the second hydraulic pipe is communicated with the external hydraulic oil tank through the second hydraulic pump and is used for adjusting the telescopic state of the limiting push rod.
Preferably, the conveying device comprises a guide cylinder, two ends of the guide cylinder are respectively communicated with the bottom of the mixing tank and the flow distributor, a conveying motor is fixedly installed on the guide cylinder, and a conveying end of the conveying motor is driven by a conveying auger for conveying slurry from the mixing tank to the flow distributor.
Preferably, the top of blending tank is provided with main agitator motor, and main agitator motor's output drive has the main stirring rake that inserts the inside thick liquids that stirs of blending tank, the side different high departments of blending tank install two at least rows of auxiliary agitator motors, and auxiliary agitator motor's output drive has the auxiliary stirring rake that inserts in the blending tank with main stirring rake staggered arrangement and stir the thick liquids from top to bottom.
Preferably, the side of supporting bench is provided with the maintenance ladder that makes things convenient for maintainer to climb supporting bench top and maintain the blending tank, and the top of supporting bench is in corresponding maintenance ladder top department fixed mounting have the hand pole of being convenient for maintainer hand to stand.
Preferably, the top fixed mounting of blending tank has the feed inlet that is the back taper, and the upper end of feed inlet is fixed with the discharge gate of outside bucket elevator, the fixed intercommunication in bottom of blending tank has the row material pipe that is used for discharging waste gas thick liquids, and passes through the discharge valve control open and close state on the row material pipe.
Preferably, a water inlet pump communicated with an external water source is arranged at the top of the mixing tank, and a spray head communicated with the water inlet pump and spraying water to the slurry is uniformly arranged at the inner top of the mixing tank.
Preferably, the gasbag is rubber gasbag and inboard through bolt and protection tube fixed mounting, and the outside fixed mounting of gasbag has the spike that is used for penetrating the grout hole inner wall after the gasbag inflation, the upper and lower both ends of gasbag are fixed inside the protection tube through annular steel ring, and the inner chamber of every gasbag is separated into at least two inflation chambers that independently communicate with the gas tube respectively through the rubber membrane.
Preferably, the limit push rod is a multi-stage hydraulic cylinder, the inclination angle between the limit push rod and the limit seat is five-degree angle to forty-five-degree angle, and the movable tail end of the limit push rod is a triangular cone which is penetrated upwards.
Preferably, the upper end of the protection pipe is fixedly provided with a bearing table for placing heavy objects to prevent the protection pipe from floating upwards, and the bottom of the bearing table is fixedly provided with a plugging column which is inserted into the ground to prevent the bearing table from shaking.
A goaf treatment method comprises the following steps:
s1, preparation in the early stage: judging the position, the size and the filling state of an underground goaf through geological radar short-distance detection and geological drilling machine drilling detection, cleaning sundries at corresponding positions, marking required drilling positions and drilling depths, then excavating a drainage channel to ensure smooth drainage, and simultaneously carrying a goaf filling grouting device to a proper position on site;
s2, drilling operation: drilling the marked hole sites through a geological drilling machine to form grouting holes, correctly placing the protection pipe and the grouting pipe into the grouting holes after drilling, unsealing the air bag to block the inner wall of the grouting holes through the air pump, and extending and clamping the limiting push rod at the bottom of the grouting holes through the second hydraulic pump until all the grouting hole sites are paved with the protection pipe and the grouting pipe;
s3, grouting operation: placing materials into a mixing tank to be configured into slurry, then distributing the slurry to each reversing valve through a flow distributor by utilizing a conveying device, and selecting the reversing valve to directly send the slurry into a grouting pipe by adopting a first branch pipe or to send the slurry into the grouting pipe by adopting a second branch pipe provided with a high-pressure grouting pump according to whether higher pressure grouting is required or not, wherein the slurry is conveyed into a corresponding position of a goaf through the grouting pipe to be filled until filling is completed;
s4, removing the pipeline: after filling in the grouting hole, the inflator pump stops inflating and deflates the air bag to enable the air bag to retract into the protection pipe, then the second hydraulic pump is utilized to drive the limiting push rod to retract into the limiting seat, at the moment, the protection pipe is communicated with the grouting pipe and can be lifted upwards to pull out the grouting hole together, if the grouting hole cannot be lifted and pulled, the limiting push rod is possibly damaged when in use and cannot retract normally, at the moment, the tail end of the anti-falling push rod can be driven by the first hydraulic pump to break away from the plugging state of the plugging seat, at the moment, the protection pipe can be separated from the limiting seat by continuously lifting and pulling up the protection pipe, the plugging type butt joint pipe can also break away from the plugging matching state of the protection pipe with the second hydraulic pipe, so that the protection pipe is lifted out, and the limiting seat is abandoned in the grouting hole, and after the protection pipe is lifted out, the outlet of the grouting hole is sealed by using concrete;
s5, post-treatment: after all grouting holes are sealed by concrete, the equipment can be withdrawn from a construction site, the construction site is leveled, accumulated water is discharged by utilizing a drainage channel, after the construction is completed for half a month, the original goaf is scanned and detected again by utilizing a geological radar, meanwhile, the original goaf is drilled and sampled by utilizing a geological drilling machine, whether the corresponding area reaches the expected reinforcement strength is checked, and the original goaf is filled and reinforced again as required.
Compared with the prior art, the invention has the beneficial effects that: the grouting device designed by the invention can seal the gap between the protection pipe and the grouting hole by utilizing the air bag when the underground pressure is higher, so as to prevent slurry from flowing upwards, the protection pipe can also be used for supporting the grouting pipe to avoid damage, meanwhile, the bottom of the protection pipe can be fixed at the bottom of the grouting hole by the limiting seat to prevent the grouting pipe from shaking or being ejected out of the grouting hole, and meanwhile, the grouting device can also select a conveying device or a form of a high-pressure grouting pump of the conveying device to provide slurry with different pressures according to different grouting stages and different grouting areas, thereby effectively meeting grouting requirements and ensuring stable and efficient construction process.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a side view of the structure of the present invention;
FIG. 3 is a cross-sectional view of the structure of the present invention;
FIG. 4 is a schematic view of the installation of the protective tube and the limiting seat of the present invention;
fig. 5 is a schematic structural view of the mounting base of the present invention.
In the figure: 1. a support table; 2. a conveying device; 201. a guide cylinder; 202. conveying the auger; 203. a conveying motor; 3. a discharge pipe; 4. a discharge valve; 5. maintaining the ladder; 6. a walking bar; 7. an auxiliary stirring motor; 8. a feed inlet; 9. a main stirring motor; 10. a water inlet pump; 11. a mixing tank; 12. a flow distributor; 13. a reversing valve; 14. a high pressure grouting pump; 15. grouting pipes; 16. an inflator pump; 17. an inflation tube; 18. a bearing table; 19. an air bag; 20. a protective tube; 21. a limit seat; 22. a first hydraulic pump; 23. a first hydraulic pipe; 24. a second hydraulic pump; 25. a second hydraulic pipe; 26. a distribution pipe; 27. plug-in type butt joint pipe; 28. a socket; 29. a limiting push rod; 30. an anti-falling push rod; 31. a first branch pipe; 32. a pressure gauge; 33. a second branch pipe; 34. a plug-in column; 35. auxiliary stirring paddles; 36. and a main stirring paddle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. Based on the technical solutions of the present invention, all other embodiments obtained by a person skilled in the art without making any creative effort fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: a goaf filling grouting device, the grouting device comprising:
a mixing tank 11, please refer to fig. 1-3, the mixing tank 11 is used for manufacturing slurry and is fixed on the top of the supporting table 1, the bottom of the mixing tank 11 is fixedly provided with a conveying device 2 for conveying the slurry, the top of the mixing tank 11 is provided with a main stirring motor 9, the output end of the main stirring motor 9 is driven with a main stirring paddle 36 inserted into the mixing tank 11 to stir the slurry, at least two rows of auxiliary stirring motors 7 are arranged at different heights on the side of the mixing tank 11, the output end of the auxiliary stirring motor 7 is driven with auxiliary stirring paddles 35 inserted into the mixing tank 11 and staggered with the main stirring paddle 36 to stir the slurry up and down, the top of the mixing tank 11 is fixedly provided with a feed inlet 8 in a reverse cone shape, the upper end of the feed inlet 8 is fixed with the discharge outlet of an external bucket elevator, the bottom of the mixing tank 11 is fixedly communicated with a discharge pipe 3 for discharging waste gas slurry, the open-close state is controlled on the discharge pipe 3 through the discharge valve 4, the water inlet pump 10 communicated with an external water source is arranged at the top of the mixing tank 11, the spray head communicated with the water inlet pump 10 and spraying water to the slurry is uniformly arranged at the top of the inside of the mixing tank 11, the output end of the conveying device 2 is communicated with the flow distributor 12, the slurry is conveyed to the corresponding flow distribution pipes 26 through at least two material valves which can be independently controlled to open and close in the flow distributor 12, the conveying device 2 comprises a guide cylinder 201 with two ends respectively communicated with the bottom of the mixing tank 11 and the flow distributor 12, the guide cylinder 201 is fixedly provided with a conveying motor 203, the conveying end of the conveying motor 203 is driven by a conveying auger 202 used for conveying the slurry from the mixing tank 11 into the flow distributor 12, the side surface of the support table 1 is provided with a maintenance ladder 5 which is convenient for maintenance personnel to climb the top of the support table 1 to maintain the mixing tank 11, the top of the supporting table 1 is fixedly provided with a hand rod 6 which is convenient for maintenance personnel to stand in a hand manner at the position corresponding to the top of the maintenance ladder 5;
the grouting pipe 15, please refer to fig. 1 to 4, the grouting pipe 15 is used for being inserted into a grouting hole formed above a goaf and grouting the goaf, the top end of the grouting pipe 15 is respectively connected with two outlet ends of a reversing valve 13 for distributing slurry flow direction through a first branch pipe 31 and a second branch pipe 33, the inlet end of the reversing valve 13 is communicated with one of the distributing pipes 26 positioned on the distributor 12 and receives slurry, a high-pressure grouting pump 14 is fixedly arranged on the second branch pipe 33, and a pressure gauge 32 for detecting slurry pressure is arranged on the grouting pipe 15;
the protection pipe 20, please refer to fig. 1-4, the protection pipe 20 is sleeved on the outer wall of the grouting pipe 15 and prevents the grouting pipe 15 from shaking or separating from the grouting hole, the inside of the protection pipe 20 is fixedly provided with an inflation pipe 17, a first hydraulic pipe 23 and a second hydraulic pipe 25, the outside of the protection pipe 20 is provided with an air bag 19 which is used for clamping the inner wall of the grouting hole to place the protection pipe 20 to shake through inflation, the inflation pipe 17 is connected with an external air supply device through an inflation pump 16 and inflates the air bag 19, the air bag 19 is a rubber air bag, the inner side of the air bag 19 is fixedly arranged with the protection pipe 20 through bolts, the outer side of the air bag 19 is fixedly provided with a stab nail used for penetrating the inner wall of the grouting hole after the air bag 19 is inflated, the upper end and the lower end of the air bag 19 are fixed in the protection pipe 20 through annular steel rings, the inner cavity of each air bag 19 is divided into at least two inflation cavities which are respectively and independently communicated with the inflation pipe 17, the upper end of the protection pipe 20 is fixedly provided with a bearing table 18 used for placing a weight to prevent the protection pipe 20 from floating on the air bag, and the bottom of the bearing table 20 is fixedly provided with a plug-in post 34 which is inserted into the underground to prevent the shaking of the bearing table 18;
referring to fig. 3 to 5, the limiting seat 21 is sleeved at the tail end of the grouting pipe 15 and is used for preventing the protection pipe 20 from shaking or separating from the grouting hole, the top of the limiting seat 21 is spliced at the bottom of the protection pipe 20 through the splicing seat 28, an anti-falling push rod 30 spliced with the limiting splicing seat 28 is fixedly installed at the bottom of the protection pipe 20, the first hydraulic pipe 23 is communicated with an external hydraulic oil tank through the first hydraulic pump 22 and adjusts the limiting state of the tail end of the anti-falling push rod 30, at least one pair of limiting push rods 29 which are inserted into the grouting hole for limiting in a telescopic manner are symmetrically arranged on the outer wall of the limiting seat 21, a splicing butt joint pipe 27 spliced with the second hydraulic pipe 25 and communicated with the limiting push rod 29 is arranged on the limiting seat 21, the second hydraulic pipe 25 is communicated with the external hydraulic oil tank through the second hydraulic pump 24 and is used for adjusting the telescopic state of the limiting push rod 29, the limiting push rod 29 is a multistage hydraulic cylinder, the inclined angle between the limiting push rod 29 and the limiting seat 21 is a five-degree angle to a forty-five-degree angle, and the movable tail end of the limiting push rod 29 is a triangular cone which is penetrated upwards.
When the grouting device is used, materials fed into the feed inlet 8 by the bucket elevator can be stirred by the main stirring paddles 36, meanwhile, stirring efficiency is improved by stirring by the auxiliary stirring paddles 35, after stirring is completed, the slurry is fed into the distributor 12 through the conveying device 2 and is distributed into each grouting pipe 15, the conveying device 2 can provide certain grouting pressure, therefore, when the grouting pressure required to be used is small, the grouting pipes 15 can be used for high-pressure grouting without using the high-pressure grouting pump 14 and directly provide slurry with corresponding pressure through the conveying device 2, the pressure of the slurry in the grouting pipes 15 can also be monitored through the pressure gauge 32, the pressure of the slurry can be generated at the inner opening of a goaf to react with the grouting pipes 15 and the protection pipes 20, at the moment, as gaps between the protection pipes 20 and the grouting holes are blocked by air bags, the bottoms of the protection pipes 20 are firmly fixed at the bottoms of the grouting holes through the limiting push rods 29 on the limiting seats 21, the slurry cannot be ejected upwards, the protection pipes 20 and the grouting pipes 15 can not shake or are ejected out of the grouting holes, and accordingly, the grouting operation is smooth and practical value is ensured.
A goaf treatment method comprises the following steps:
s1, preparation in the early stage: judging the position, the size and the filling state of an underground goaf through geological radar short-distance detection and geological drilling machine drilling detection, cleaning sundries at corresponding positions, marking required drilling positions and drilling depths, then excavating a drainage channel to ensure smooth drainage, and simultaneously carrying a goaf filling grouting device to a proper position on site;
s2, drilling operation: drilling the marked hole sites through a geological drilling machine to form grouting holes, correctly placing the protection pipe 20 and the grouting pipe 15 into the grouting holes after drilling, then expanding the air bags 19 through the air pump 16 to block the inner walls of the grouting holes, and extending and clamping the limiting push rods 29 at the bottoms of the grouting holes through the second hydraulic pump 24 until all the grouting holes are paved with the protection pipe 20 and the grouting pipe 15;
s3, grouting operation: placing materials into a mixing tank 11 to be configured into slurry, then distributing the slurry to each reversing valve 13 through a flow distributor 12 by utilizing a conveying device 2, and selecting the reversing valve 13 to directly send the slurry into a grouting pipe 15 by adopting a first branch pipe 31 or to send the slurry into the grouting pipe 15 by adopting a second branch pipe 33 provided with a high-pressure grouting pump 14 according to whether higher-pressure grouting is required or not, wherein the slurry is conveyed into a corresponding position of a goaf through the grouting pipe 15 to be filled until filling is finished;
s4, removing the pipeline: after the filling of the grouting hole is finished, the inflator pump 16 stops inflating and deflates the air bag 19 to enable the air bag 19 to retract into the protection pipe 20, then the second hydraulic pump 24 is used for driving the limiting push rod 29 to retract into the limiting seat 21, at the moment, the protection pipe 20 is communicated with the grouting pipe 15 to be lifted upwards together to pull out the grouting hole, if the grouting hole cannot be lifted and pulled, the limiting push rod 29 is possibly damaged in use to cause abnormal retraction, at the moment, the tail end of the anti-falling push rod 30 can be driven by the first hydraulic pump 22 to be separated from the plugging state of the plugging seat 28, at the moment, the protection pipe 20 can be separated from the limiting seat 21 by continuously lifting and pulling the protection pipe 20 upwards, the plugging butt joint pipe 27 can be separated from the plugging matching state of the second hydraulic pipe 25, so that the protection pipe 20 is lifted out, the limiting seat 21 is abandoned in the grouting hole, and after the protection pipe 20 is lifted out, the outlet of the grouting hole is sealed by using concrete;
s5, post-treatment: after all grouting holes are sealed by concrete, the equipment can be withdrawn from a construction site, the construction site is leveled, accumulated water is discharged by utilizing a drainage channel, after the construction is completed for half a month, the original goaf is scanned and detected again by utilizing a geological radar, meanwhile, the original goaf is drilled and sampled by utilizing a geological drilling machine, whether the corresponding area reaches the expected reinforcement strength is checked, and the original goaf is filled and reinforced again as required.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A goaf filling grouting device, characterized in that the grouting device comprises:
the mixing tank (11), the mixing tank (11) is used for manufacturing slurry and is fixed at the top of the supporting table (1), the bottom of the mixing tank (11) is fixedly provided with a conveying device (2) for conveying the slurry, the output end of the conveying device (2) is communicated with a flow distributor (12), and the slurry is conveyed to a corresponding number of flow distribution pipes (26) through at least two material valves capable of being independently controlled to be opened and closed in the flow distributor (12);
the grouting device comprises a grouting pipe (15), wherein the grouting pipe (15) is used for being inserted into a grouting hole formed above a goaf and grouting the goaf, the top end of the grouting pipe (15) is respectively connected with two outlet ends of a reversing valve (13) for distributing slurry flow direction through a first branch pipe (31) and a second branch pipe (33), the inlet end of the reversing valve (13) is communicated with one of distributing pipes (26) arranged on a distributor (12) and receives slurry, a high-pressure grouting pump (14) is fixedly arranged on the second branch pipe (33), and a pressure gauge (32) for detecting slurry pressure is arranged on the grouting pipe (15);
the protection pipe (20), the protection pipe (20) is sleeved on the outer wall of the grouting pipe (15) and prevents the grouting pipe (15) from shaking or separating from a grouting hole, an air charging pipe (17), a first hydraulic pipe (23) and a second hydraulic pipe (25) are fixedly arranged in the protection pipe (20), an air bag (19) for clamping the shaking of the protection pipe (20) is arranged on the outer wall of the grouting hole through inflation, and the air charging pipe (17) is connected with external air supply equipment through an air charging pump (16) and charges air into the air bag (19);
spacing seat (21), spacing seat (21) cover is established at the end of grout pipe (15) and is used for preventing that protection pipe (20) from rocking or breaking away from the grout hole, and the top of spacing seat (21) is pegged graft in the bottom of protection pipe (20) through bayonet socket (28), the bottom fixed mounting of protection pipe (20) has anti-drop push rod (30) through pegging graft spacing bayonet socket (28), and first hydraulic pipe (23) are through first hydraulic pump (22) and outside hydraulic tank intercommunication and the terminal spacing state of adjustment anti-drop push rod (30), the outer wall of spacing seat (21) is provided with at least a pair of spacing push rod (29) that carry out spacing through flexible the inserting grout hole with slope form symmetry, and is provided with on spacing seat (21) with second hydraulic pipe (25) peg graft installation and intercommunication spacing push rod (29) to take over (27), second hydraulic pipe (25) are through second hydraulic pump (24) and outside hydraulic tank intercommunication and are used for the flexible state of adjustment spacing push rod (29).
2. The goaf filling grouting device as claimed in claim 1, wherein: the conveying device (2) comprises a guide cylinder (201) with two ends respectively communicated with the bottom of the mixing tank (11) and the flow distributor (12), a conveying motor (203) is fixedly installed on the guide cylinder (201), and a conveying auger (202) for conveying slurry from the mixing tank (11) to the flow distributor (12) is driven by the conveying end of the conveying motor (203).
3. The goaf filling grouting device as claimed in claim 1, wherein: the top of blending tank (11) is provided with main agitator motor (9), and the output drive of main agitator motor (9) has main stirring rake (36) of inserting inside stirring the thick liquids of blending tank (11), the side different high departments of blending tank (11) are installed two at least rows of auxiliary agitator motors (7), and the output drive of auxiliary agitator motor (7) has auxiliary stirring rake (35) of inserting in blending tank (11) with main stirring rake (36) staggered arrangement and stirring from top to bottom to the thick liquids.
4. The goaf filling grouting device as claimed in claim 1, wherein: the side of brace table (1) is provided with maintenance ladder (5) that the maintenance personnel of convenience climbs brace table (1) top and maintains hybrid tank (11), and the top of brace table (1) is in corresponding maintenance ladder (5) top department fixed mounting have hand pole (6) that the maintenance personnel of being convenient for hand stand.
5. The goaf filling grouting device as claimed in claim 1, wherein: the top fixed mounting of blending tank (11) has feed inlet (8) that are the back taper, and the upper end of feed inlet (8) is fixed with the discharge gate of outside bucket elevator, the fixed intercommunication in bottom of blending tank (11) has discharge pipe (3) that are used for discharging waste gas thick liquids, and controls the open and close state through discharge valve (4) on discharge pipe (3).
6. The goaf filling grouting device as claimed in claim 1, wherein: the top of the mixing tank (11) is provided with a water inlet pump (10) communicated with an external water source, and the top of the interior of the mixing tank (11) is uniformly provided with a spray head communicated with the water inlet pump (10) and spraying water to slurry.
7. The goaf filling grouting device as claimed in claim 1, wherein: the air bags (19) are rubber air bags, the inner sides of the air bags are fixedly arranged with the protection pipe (20) through bolts, the outer sides of the air bags (19) are fixedly provided with piercing nails used for piercing the inner walls of grouting holes after the air bags (19) are expanded, the upper ends and the lower ends of the air bags (19) are fixed inside the protection pipe (20) through annular steel rings, and the inner cavity of each air bag (19) is divided into at least two air filling cavities which are respectively and independently communicated with the air filling pipe (17) through rubber films.
8. The goaf filling grouting device as claimed in claim 1, wherein: the limiting push rod (29) is a multi-stage hydraulic cylinder, the inclination angle between the limiting push rod (29) and the limiting seat (21) is five-degree angle to forty-five-degree angle, and the movable tail end of the limiting push rod (29) is a triangular cone which is penetrated upwards.
9. The goaf filling grouting device as claimed in claim 1, wherein: the upper end of the protection pipe (20) is fixedly provided with a bearing table (18) for placing heavy objects to prevent the protection pipe (20) from floating upwards, and the bottom of the bearing table (20) is fixedly provided with a plugging column (34) which is inserted into the ground to prevent the bearing table (18) from shaking.
10. The goaf treatment method is characterized by comprising the following steps of:
s1, preparation in the early stage: judging the position, the size and the filling state of an underground goaf through geological radar short-distance detection and geological drilling machine drilling detection, cleaning sundries at corresponding positions, marking required drilling positions and drilling depths, then excavating a drainage channel to ensure smooth drainage, and simultaneously carrying the goaf filling grouting device according to any one of claims 1-9 to a proper site;
s2, drilling operation: drilling the marked hole sites through a geological drilling machine to form grouting holes, correctly placing the protection pipe (20) and the grouting pipe (15) into the grouting holes after drilling, then expanding the air bags (19) to block the inner walls of the grouting holes through the air pumps (16), and extending and clamping the limiting push rods (29) at the bottoms of the grouting holes through the second hydraulic pumps (24) until all the grouting holes are paved with the protection pipe (20) and the grouting pipe (15);
s3, grouting operation: placing materials into a mixing tank (11) to be configured into slurry, then distributing the slurry to each reversing valve (13) through a distributor (12) by using a conveying device (2), and selecting the reversing valves (13) to directly send the slurry into a grouting pipe (15) by adopting a first branch pipe (31) or directly send the slurry into the grouting pipe (15) by adopting a second branch pipe (33) provided with a high-pressure grouting pump (14) according to whether higher-pressure grouting is required or not, wherein the slurry is conveyed into a corresponding position of a goaf through the grouting pipe (15) to be filled until the filling is finished;
s4, removing the pipeline: after filling in the grouting hole, the air pump (16) stops inflating and deflates the air bag (19) to enable the air bag (19) to retract into the protection pipe (20), then the second hydraulic pump (24) is used for driving the limiting push rod (29) to retract into the limiting seat (21), at the moment, the protection pipe (20) is communicated with the grouting pipe (15) to be lifted upwards together to pull out the grouting hole, if the grouting hole cannot be lifted, the limiting push rod (29) is possibly damaged when in use and cannot retract normally, at the moment, the tail end of the anti-falling push rod (30) can be driven by the first hydraulic pump (22) to be separated from the plugging state of the plugging seat (28), at the moment, the protection pipe (20) can be separated from the limiting seat (21) by continuously lifting the protection pipe (20) upwards, the plugging type butt joint pipe (27) can also be separated from the plugging matching state of the second hydraulic pipe (25), the protection pipe (20) is lifted out, the limiting seat (21) is abandoned in the grouting hole, and after the protection pipe (20) is lifted out, the grouting hole is blocked by using concrete;
s5, post-treatment: after all grouting holes are sealed by concrete, the equipment can be withdrawn from a construction site, the construction site is leveled, accumulated water is discharged by utilizing a drainage channel, after the construction is completed for half a month, the original goaf is scanned and detected again by utilizing a geological radar, meanwhile, the original goaf is drilled and sampled by utilizing a geological drilling machine, whether the corresponding area reaches the expected reinforcement strength is checked, and the original goaf is filled and reinforced again as required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311237798.7A CN117072232A (en) | 2023-09-25 | 2023-09-25 | Goaf filling grouting device and treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311237798.7A CN117072232A (en) | 2023-09-25 | 2023-09-25 | Goaf filling grouting device and treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117072232A true CN117072232A (en) | 2023-11-17 |
Family
ID=88711787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311237798.7A Pending CN117072232A (en) | 2023-09-25 | 2023-09-25 | Goaf filling grouting device and treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117072232A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117577792A (en) * | 2024-01-16 | 2024-02-20 | 淄博火炬机电设备有限责任公司 | Positive grid grouting system |
| CN117983105A (en) * | 2024-04-03 | 2024-05-07 | 浙江兄弟药业有限公司 | Convection type automatic lifting hopper mixer |
-
2023
- 2023-09-25 CN CN202311237798.7A patent/CN117072232A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117577792A (en) * | 2024-01-16 | 2024-02-20 | 淄博火炬机电设备有限责任公司 | Positive grid grouting system |
| CN117577792B (en) * | 2024-01-16 | 2024-04-19 | 淄博火炬机电设备有限责任公司 | Positive grid grouting system |
| CN117983105A (en) * | 2024-04-03 | 2024-05-07 | 浙江兄弟药业有限公司 | Convection type automatic lifting hopper mixer |
| CN117983105B (en) * | 2024-04-03 | 2024-06-04 | 浙江兄弟药业有限公司 | Convection type automatic lifting hopper mixer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN117072232A (en) | Goaf filling grouting device and treatment method | |
| KR100255488B1 (en) | Underground trench excavator and underground trench excavating work method | |
| CN109487843A (en) | A kind of underwater open caisson development machine and its construction method | |
| KR101922032B1 (en) | DCM soft ground improved apparatus and method using a ground rig | |
| CN113338932B (en) | Roadway-free ground drilling fluidized coal mining method | |
| CN105937407A (en) | Gob-side entry retaining concrete filled wall annular air bag construction method | |
| CN114483056B (en) | Method for treating collapse roof caving hole of high-speed railway shallow-buried tunnel within 15m of height of collapse cavity | |
| CN111648719B (en) | Bamboo joint type drilling device suitable for soft soil stratum and construction method thereof | |
| USRE28945E (en) | Method and apparatus for excavating settled body of solids | |
| CN116517619A (en) | Gangue solid waste gel filling flexible half-formwork system and supporting method | |
| CN209384303U (en) | A kind of underwater open caisson development machine | |
| CN115874613A (en) | Advanced oblique thread expanded composite pile, construction equipment and construction process thereof | |
| CN112627827B (en) | Control device for excavating and deslagging of vertical shaft at upper part of existing tunnel | |
| KR20200003568A (en) | Hanging type waling structure and fast construction method of pipe using thereof | |
| CN113047843B (en) | Soil body excavation device for large-diameter pile or vertical shaft hole forming | |
| JP2003082663A (en) | Pile driving equipment | |
| CN114855772A (en) | Dual-purpose jacking equipment for inclined and straight piles | |
| KR101953192B1 (en) | semi-shield method with improved directionality for recycle of casing | |
| JP2001082062A (en) | Confirming device for underground buried object | |
| CN111962544B (en) | Cooperative connected pile foundation construction device and construction process | |
| CN116065580B (en) | High-bearing-capacity multi-bag expansion anchor rod drilling and expanding structure and integrated construction method thereof | |
| CN215804595U (en) | Pneumatic grouting device for coal mine construction | |
| CN112796306B (en) | Manual hole digging pile in karst area and construction method | |
| CN220225271U (en) | Grouting equipment for cement mixing pile | |
| RU2198263C1 (en) | Process of erection of underground structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |