CN117266888B - Grouting device is reserved in upper and lower overlapping tunnel - Google Patents
Grouting device is reserved in upper and lower overlapping tunnel Download PDFInfo
- Publication number
- CN117266888B CN117266888B CN202311549769.4A CN202311549769A CN117266888B CN 117266888 B CN117266888 B CN 117266888B CN 202311549769 A CN202311549769 A CN 202311549769A CN 117266888 B CN117266888 B CN 117266888B
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- grouting
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- circular plate
- auxiliary cylinder
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- 239000004568 cement Substances 0.000 claims abstract description 88
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000004140 cleaning Methods 0.000 claims abstract description 16
- 239000002002 slurry Substances 0.000 claims abstract description 11
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 13
- 238000007569 slipcasting Methods 0.000 claims description 13
- 239000000945 filler Substances 0.000 claims description 11
- 239000011440 grout Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 230000010405 clearance mechanism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (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 tunnel grouting equipment, in particular to a reserved grouting device for an upper-lower overlapped tunnel, which is used for solving the problem that the grouting is difficult to perform next time due to solidification caused by cement slurry remained in a grouting pipe, and comprises a cleaning mechanism for discharging cement in the embedded grouting pipe, wherein the cleaning mechanism comprises: the filling pipe is connected with the pre-buried grouting pipe; the auxiliary cylinder is connected to the outer wall of the filling pipe; the pipeline is communicated with the auxiliary cylinder and the filling pipe; the first circular plate slides in the auxiliary cylinder; the auxiliary cylinder is filled with water; after grouting is finished, the first circular plate moves upwards to enable water in the auxiliary cylinder to be injected into the embedded grouting pipe through the pipeline, so that cement paste in the embedded grouting pipe is discharged; after grouting is completed, the first circular plate slides up in the auxiliary cylinder, so that water in the auxiliary cylinder is injected into the grouting pipe through the pipeline, and the water in the grouting pipe extrudes residual cement paste in the grouting pipe out of the grouting pipe.
Description
Technical Field
The invention relates to the technical field of tunnel grouting equipment, in particular to a reserved grouting device for an upper-lower overlapped tunnel.
Background
The urban tunnel that comes now is influenced by building, ground facility etc. becomes the upper and lower tunnel that stacks from former parallel tunnel, and the interval between the tunnel that stacks is too little, and upper portion tunnel subsides scene probably appears when later stage train operation, in order to avoid post treatment to cause the influence to the section of jurisdiction, buries the slip casting pipe in advance during the construction, and the slip casting pipe has the check valve, can repeat many times slip casting, and the problem appears in the operation period like later stage, and the accessible is reserved the slip casting pipe and is carried out the slip casting, guarantees normal operation during the operation, when grouting between to the tunnel, need reserve an blast pipe, need close the blast pipe after continuing the slip casting when blast pipe department flows grout, increase the firmness.
After grouting is finished, cement paste usually remains in the grouting pipe, if the cement paste is not discharged, the cement paste is solidified in the grouting pipe, so that the grouting pipe is blocked, the cement paste can not flow through the grouting pipe when grouting is finished next time, in the prior art, a mechanical cleaning method is usually adopted to dredge the grouting pipe for grouting later, the grouting pipe for repeated grouting is provided with a check valve, the mechanical cleaning method is not easy to clean the internal cement paste with the check valve grouting pipe, the grouting in the grouting pipe is ejected by adopting the gas injection, the cement paste possibly causes air to enter into a grouting part, a cavity is formed at the part needing grouting, and the grouting part is unstable, so that the grouting part can be cleaned after grouting is finished, and the problem to be solved at present can be guaranteed firmly.
Disclosure of Invention
The invention provides a reserved grouting device for an up-down overlapped tunnel, which aims to solve the problem that the next grouting is difficult due to solidification caused by residual cement slurry in a grouting pipe.
In order to alleviate the technical problems, the technical scheme provided by the invention is as follows:
the grouting device is used for injecting cement slurry between the overlapped tunnels through a pre-buried grouting pipe, and comprises a processing mechanism, wherein the processing mechanism is used for injecting the slurry into a tunnel gap through a cement slurry cylinder;
still including being used for discharging cement in the pre-buried slip casting pipe clearance mechanism, clearance mechanism includes:
one end of the filling pipe is connected with the cement paste cylinder, and the other end of the filling pipe is connected with the embedded grouting pipe;
the auxiliary cylinder is connected to the outer wall of the filling pipe and filled with water;
a conduit connected between the auxiliary cartridge and the filler tube;
a first circular plate sliding in the auxiliary cylinder;
after grouting is finished, the first circular plate moves upwards to enable water in the auxiliary cylinder to be injected into the embedded grouting pipe through the pipeline, so that cement paste in the embedded grouting pipe is discharged.
Still further, the cleaning mechanism further comprises:
the ball valve is arranged in the filling pipe;
a gear connected to a valve stem of the ball valve;
a second circular plate sliding in the auxiliary cylinder and positioned at the upper part of the first circular plate;
a rack connected to the upper surface of the second circular plate and meshed with the gear;
when the first circular plate moves upwards, the second circular plate is pushed to move upwards by water in the auxiliary cylinder, so that the second circular plate drives the rack to move upwards, and the rack drives the gear to rotate, so that the ball valve is closed.
Still further, the cleaning mechanism further comprises:
the baffle ring is connected to the upper port of the auxiliary cylinder;
the plugging block is connected to the upper surface of the second circular plate and is attached to the inner wall of the auxiliary cylinder;
the blocking block is driven by the second circular plate to block or avoid an opening which is formed in the auxiliary cylinder and communicated with the pipeline.
Still further, a processing mechanism is also included, the processing mechanism includes:
the rotating shaft is coaxially and rotatably connected with the cement paste cylinder;
the crushing cutter is connected to the side wall of the rotating shaft and positioned in the cement paste cylinder.
Still further, the processing mechanism further comprises:
the pressurizing pump is connected with the cement paste cylinder;
and the pressurizing pipe is connected with the pressurizing pump and used for guiding air of the pressurizing pump into the cement paste barrel.
Still further, a switching mechanism is also included, the switching mechanism includes:
a motor;
a first drive tooth connected to a drive shaft of the motor;
the second driving tooth is connected to the driving shaft of the motor and is positioned at the lower part of the first driving tooth;
the first big tooth is connected to the upper part of the rotating shaft;
the first small teeth are connected to the upper part of the rotating shaft and positioned at the lower part of the first large teeth;
the pump shaft is arranged on the pressurizing pump;
a second small tooth connected to the upper part of the pump shaft;
a second large tooth connected to the upper part of the pump shaft and positioned at the lower part of the second small tooth;
the diameters of the first driving teeth, the second driving teeth, the first big teeth and the second big teeth are equal;
the motor has an up-shift state and a down-shift state;
in the upward moving state, the first driving teeth are meshed with the first big teeth and the second small teeth, so that the rotation speed of the pump shaft of the booster pump is increased, the rotation speed of the rotating shaft is reduced, and the torque is increased;
in the downward movement state, the second driving teeth are meshed with the second big teeth and the first small teeth, so that the rotation speed of the pump shaft of the booster pump is reduced, the torque is increased, and the rotation speed of the rotating shaft is increased.
Still further, the switching mechanism further includes:
the bracket is connected with the cement paste barrel;
the first hydraulic rod is connected to the top of the bracket;
the output end of the first hydraulic rod horizontally slides on the top of the motor;
the first hydraulic rod can be extended to drive the motor to move downwards.
Still further, the switching mechanism further includes:
the motor is fixedly connected to the middle part of the base;
the sliding rod is connected to the side part of the base;
the sliding groove is arranged on the bracket;
the sliding rod slides in the sliding groove;
the chute is provided with a slope, and the slope enables the base to drive the motor to move in an inclined mode, so that the second driving teeth can be meshed with the first small teeth and the second large teeth.
Furthermore, a second hydraulic rod is fixedly connected to the outer wall of the filling pipe, and the first circular plate is connected to the output end of the second hydraulic rod.
Still further, still include supporting mechanism, supporting mechanism includes:
the cement paste cylinder is connected to the upper surface of the support plate;
and the moving wheel rotates on the lower part of the supporting plate.
The beneficial effects of the invention are analyzed as follows:
the utility model provides a top-bottom overlap tunnel reservation slip casting device, slip casting device is through pre-buried slip casting pipe to the slip casting mud that fills between the overlap tunnel, its characterized in that;
the grouting device comprises a processing mechanism, wherein the processing mechanism injects slurry into the gap of the tunnel through the cement slurry cylinder;
still including being used for discharging the clearance mechanism of the intraductal cement of pre-buried slip casting, clearance mechanism includes:
one end of the filling pipe is connected with the cement paste cylinder, and the other end of the filling pipe is connected with the pre-buried grouting pipe;
the auxiliary cylinder is connected to the outer wall of the filling pipe and filled with water;
a pipe connected between the auxiliary cylinder and the filling pipe;
the first circular plate slides in the auxiliary cylinder;
after grouting is finished, the first circular plate moves upwards to enable water in the auxiliary cylinder to be injected into the embedded grouting pipe through the pipeline, so that cement paste in the embedded grouting pipe is discharged.
After grouting is completed, the first circular plate slides upwards in the auxiliary cylinder, water in the auxiliary cylinder is injected into the grouting pipe through the pipeline, so that water in the grouting pipe is used for extruding residual cement paste in the grouting pipe out of the grouting pipe, the cement paste can not be solidified in the grouting pipe, the grouting pipe is kept smooth, the cement paste can flow through the grouting pipe when grouting is performed next time, normal grouting operation is guaranteed, the water is used for discharging the cement paste in the grouting pipe, a cavity is not formed in a grouting part, and firmness of the grouting part is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings that are required to be used in the description of the embodiments or the related art will be briefly described, and it is apparent that the drawings in the description below are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a schematic diagram of the whole structure of the present invention;
FIG. 2 is a schematic diagram of the whole structure of the present invention;
FIG. 3 is a schematic view of the processing mechanism of the present invention;
FIG. 4 is a schematic diagram of a switching mechanism according to the present invention;
FIG. 5 is a schematic view of the structure of the first hydraulic lever of the present invention;
FIG. 6 is a schematic view of the structure of the chute of the present invention;
FIG. 7 is a schematic view of a cleaning mechanism according to the present invention;
fig. 8 is a schematic structural view of a second hydraulic stem according to the present invention.
Icon:
100. a support mechanism; 110. a support plate; 120. a moving wheel; 200. a processing mechanism; 210. a cement paste cylinder; 220. a rotating shaft; 230. a crushing knife; 240. a pressurizing pump; 241. a pump shaft; 242. a pressurizing tube; 300. a switching mechanism; 310. a base; 311. a slide bar; 320. a motor; 321. a slide; 322. a first drive tooth; 323. a second active tooth; 324. a first large tooth; 325. a first small tooth; 326. a second small tooth; 327. a second large tooth; 330. a bracket; 331. a chute; 340. a first hydraulic lever; 400. a cleaning mechanism; 410. a filling pipe; 420. a ball valve; 421. a gear; 430. an auxiliary cylinder; 431. a second circular plate; 432. a block; 433. a rack; 434. a baffle ring; 435. a pipe; 440. a second hydraulic lever; 441. a first circular plate; 450. a pressure sensor; 500. grouting pipe.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples
As shown in fig. 1 to 8, a grouting device is reserved in an upper tunnel and a lower tunnel, cement slurry is injected between the overlapped tunnels through a pre-buried grouting pipe 500 by the grouting device, the grouting device further comprises a cleaning mechanism 400 for discharging cement in the pre-buried grouting pipe 500, and the cleaning mechanism 400 comprises: a filling pipe 410 connected to the pre-buried grouting pipe 500; an auxiliary cylinder 430 attached to the outer wall of the filler tube 410; a conduit 435 in communication with the auxiliary cartridge 430 and the fill tube 410; a first circular plate 441 slid inside the auxiliary cylinder 430; the auxiliary cylinder 430 is filled with water; after the grouting is finished, the first circular plate 441 moves up so that water in the auxiliary cylinder 430 is injected into the pre-buried grouting pipe 500 through the pipe 435, thereby discharging cement paste in the pre-buried grouting pipe 500.
The working mechanism of the upper and lower overlapped tunnel reserved grouting device provided by the embodiment is as follows:
after grouting is completed, the first circular plate 441 moves upwards in the auxiliary cylinder 430, so that water in the auxiliary cylinder 430 is pushed by the first circular plate 441, at the moment, water in the auxiliary cylinder 430 is injected into the grouting pipe 500 through the pipeline 435, so that water entering the grouting pipe 500 extrudes residual cement paste in the grouting pipe 500, the residual cement paste in the grouting pipe 500 moves upwards to be discharged into the grouting pipe 500 and enters a gap between overlapping tunnels, after the water in the auxiliary cylinder 430 is completely discharged into the grouting pipe 500, cement paste in the grouting pipe 500 is just completely discharged, the solidified cement paste cannot block the grouting pipe 500, the cement paste can be injected into the gap between the overlapping tunnels through the grouting pipe 500 when grouting is performed next time, the cement paste in the grouting pipe 500 is discharged through the injected water, the position needing grouting is ensured to be free of cavities, and the firmness after grouting is ensured.
Regarding how to close the filler pipe 410 to prevent water from flowing into the filler pipe 410 when water is injected into the filler pipe 500, specifically:
the cleaning mechanism 400 further includes: a ball valve 420 disposed within the fill tube 410; a gear 421 connected to the valve stem of the ball valve 420; a second circular plate 431 sliding in the auxiliary cylinder 430 and located at an upper portion of the first circular plate 441; a rack 433 coupled to an upper surface of the second circular plate 431 and engaged with the gear 421; when the first circular plate 441 moves upwards, the second circular plate 431 is pushed to move upwards by the water in the auxiliary cylinder 430, so that the second circular plate 431 drives the rack 433 to move upwards, and the rack 433 drives the gear 421 to rotate, so that the ball valve 420 is closed.
During grouting, the ball valve 420 on the filling pipe 410 is kept in an open state, when the first circular plate 441 moves upwards, the first circular plate 441 drives the second circular plate 431 to move upwards through the transmission of water in the auxiliary cylinder 430, the second circular plate 431 drives the rack 433 to move upwards synchronously, the upwards-moving rack 433 drives the gear 421 meshed with the rack 433 to rotate, the gear 421 is connected with the valve rod of the ball valve 420, the rotating gear 421 drives the ball valve 420 to rotate, at the moment, the ball valve 420 is closed, so that the connection between the filling pipe 410 and the grouting pipe 500 is terminated, but at the moment, the filling pipe 410 is still connected with the grouting pipe 500, so that when water is discharged from the auxiliary cylinder 430, water can only flow upwards in the grouting pipe 500, and cement paste in the grouting pipe 500 is discharged.
Regarding how to ensure that the water in the auxiliary cartridge 430 does not flow into the filler pipe 410 before the ball valve 420 closes, specifically:
the cleaning mechanism 400 further includes: a blocking block 432 connected to the upper surface of the second circular plate 431 and attached to the inner wall of the auxiliary cylinder 430; a baffle 434 connected to an upper port of the auxiliary cylinder 430; the second circular plate 431 moves up to drive the blocking block 432 to move to the upper part of the connection part of the auxiliary cylinder 430 and the pipeline 435, and after the blocking block 432 contacts the blocking block 432, the auxiliary cylinder 430 communicates with the pipeline 435, so that water in the auxiliary cylinder 430 is discharged through the pipeline 435 when the first circular plate 441 moves up.
In order to prevent water in the auxiliary cylinder 430 from entering the filling pipe 410 when the communication between the filling pipe 410 and the grouting pipe 500 is interrupted, before the second circular plate 431 moves upwards, a blocking block 432 connected with the second circular plate 431 blocks a connection port between the pipeline 435 and the auxiliary cylinder 430, in the process that the second circular plate 431 is driven upwards to enable the ball valve 420 to be closed, the blocking block 432 is still in a state of blocking the connection port between the pipeline 435 and the auxiliary cylinder 430, when the blocking block 432 moves upwards to a state of no longer blocking the connection port between the pipeline 435 and the auxiliary cylinder 430, the ball valve 420 is completely closed, meanwhile, the second circular plate 431 contacts a blocking ring 434 of an upper port of the auxiliary cylinder 430, at this time, the upward movement of the second circular plate 431 is blocked, and the first circular plate 441 is still in an upward movement state, at this time, the first circular plate 441 moves upwards to extrude water between the second circular plate 431 and the first circular plate 441 through the pipeline 435, and in the process that the first circular plate 441 moves upwards, the second circular plate 431 is always subjected to a driving force, so that the second circular plate 431 does not move, and the ball valve 420 maintains a closed state.
In the alternative of this embodiment, it is preferable that:
also included is a handling mechanism 200, the handling mechanism 200 comprising: a cement paste cartridge 210; a rotating shaft 220 coaxially and rotatably connected to the cement paste barrel 210; the crushing blade 230 is connected to the side wall of the rotating shaft 220 and is positioned in the cement paste barrel 210.
The cement paste is injected into the cement paste barrel 210, and then the cement paste barrel 210 is in a closed state, so as to prevent the cement paste in the cement paste barrel 210 from precipitating and layering, the rotating shaft 220 is controlled to rotate, and the crushing knife 230 on the rotating shaft 220 refines the cement paste while stirring the cement paste in the cement paste barrel 210, thereby ensuring that the cement paste is not blocked in the filling pipe 410.
In the alternative of this embodiment, it is preferable that:
the processing mechanism 200 further includes: a pressurizing pump 240 connected to the cement paste cartridge 210; a pressurizing pipe 242 connected to the pressurizing pump 240 for introducing air of the pressurizing pump 240 into the cement paste cylinder 210.
After the cement paste is injected into the cement paste barrel 210, the pressurizing pump 240 is started to pressurize the cement paste barrel 210, the pressurizing pump 240 is connected to the upper part of the cement paste barrel 210, and the filling pipe 410 is connected to the lower part of the cement paste barrel 210, so that the cement paste in the cement paste barrel 210 can be discharged through the filling pipe 410 connected to the lower part of the cement paste barrel 210.
The structure and function of the switching mechanism 300 are specifically:
also included is a switching mechanism 300, the switching mechanism 300 comprising: a motor 320; a first driving tooth 322 connected to a driving shaft of the motor 320; a second driving tooth 323 connected to the driving shaft of the motor 320 and positioned at a lower portion of the first driving tooth 322; a first large tooth 324 connected to an upper portion of the rotation shaft 220; a first small tooth 325 connected to the upper portion of the rotation shaft 220 and located at the lower portion of the first large tooth 324; a pump shaft 241 provided on the pressurizing pump 240; a second small tooth 326 connected to the upper portion of the pump shaft 241; a second large tooth 327 connected to an upper portion of the pump shaft 241 and located at a lower portion of the second small tooth 326; the first driving tooth 322 is equal to the second driving tooth 323, the first large tooth 324 and the second large tooth 327 in diameter; when grouting is about to end, the motor 320 moves downwards; when the motor 320 moves up, the first driving teeth 322 are meshed with the first big teeth 324 and the second small teeth 326, so that the rotation speed of the pump shaft 241 of the booster pump 240 is increased, the rotation speed of the rotating shaft 220 is reduced, and the torque is increased; when the motor 320 moves down, the second driving teeth 323 are engaged with the second large teeth 327 and the first small teeth 325, so that the rotation speed of the pump shaft 241 of the booster pump 240 decreases and the torque increases, and the rotation speed of the rotating shaft 220 increases.
In the initial stage of grouting operation, the pressure in the cavity of the grouting part is not large, the cement paste in the cement paste cylinder 210 is more, at the moment, the first driving teeth 322 are in a state of being meshed with the second small teeth 326 and the first large teeth 324, the diameter of the second small teeth 326 is smaller than that of the first driving teeth 322, so that the first driving teeth 322 drive the second small teeth 326 to rotate rapidly, at the moment, the operation speed of the booster pump 240 is high, the cement paste cylinder 210 is pressurized rapidly, the cement paste in the cement paste cylinder 210 is discharged rapidly, the diameters of the first driving teeth 322 and the first large teeth 324 are equal, at the moment, the rotating speed of the rotating shaft 220 is equal to the rotating speed of the first driving teeth 322, and the torque of the rotating shaft 220 is equal to the output torque of the motor 320, so that the rotating shaft 220 has enough torque when rotating, and the crushing cutter 230 can stir a large amount of cement paste in the cement paste cylinder 210 is ensured; at the end of the grouting operation, after the exhaust pipe is closed, grouting is required to be continued to increase the pressure, so that the switching mechanism 300 operates, at this time, the motor 320 moves downwards, so that the first driving tooth 322 is separated from a state of being meshed with the second small tooth 326 and the first large tooth 324, at this time, the second driving tooth 323 moves downwards and is meshed with the first small tooth 325 and the second large tooth 327, the diameter of the first small tooth 325 is smaller than that of the second driving tooth 323, at this time, the rotating speed of the rotating shaft 220 is increased, because the quantity of cement paste in the cement paste barrel 210 at the end of grouting is reduced, the rotating resistance of the rotating shaft 220 is reduced, at this time, the rotating shaft 220 with the rotating speed increased can drive the crushing cutter 230 to rotate fast, so that the residual cement paste is thinned to be increased, so that the cement paste with increased thinning degree at the end of grouting is convenient to flow to a grouting part, and in addition, when the first driving tooth 322 is meshed with the second large tooth 327, the rotating speed is reduced relative to the rotating speed when the pressurizing pump 240 is meshed with the first driving tooth 322 and the second small tooth 327, but the torque is increased, so that the grouting pressure is increased, the part to be required to be filled better, and the grouting part is ensured, and the grouting speed is prevented from being increased, and the grouting speed is reduced from being due to the high-pressure, or the grouting pipe is prevented from being broken, and being connected with the pipe 500.
Regarding the operation timing of the switching mechanism 300, specifically:
the switching mechanism 300 further includes: a bracket 330 connected to the cement paste cartridge 210; a first hydraulic lever 340 connected to the top of the bracket 330; a pressure sensor 450 disposed on the filler tube 410; the output end of the first hydraulic rod 340 horizontally slides on the top of the motor 320; when the pressure sensor 450 detects that the pressure in the filler pipe 410 reaches a set value, the first hydraulic rod 340 is extended to drive the motor 320 to move downward.
The pressure sensor 450 monitors the pressure of the grouting to ensure that the grouting amount is enough to fill the grouting part, after the exhaust pipe is closed, the pressure monitored by the pressure sensor 450 is gradually increased, when the pressure monitored by the pressure sensor 450 reaches a certain value, the first hydraulic rod 340 is extended, the switching mechanism 300 is enabled to operate, the motor 320 is enabled to move downwards, the operating torque of the booster pump 240 is enabled to increase, the rotating speed of the rotating shaft 220 is enabled to increase, the output end of the first hydraulic rod 340 horizontally slides in the sliding seat 321 on the motor 320, and accordingly the expansion and the contraction of the first hydraulic rod 340 are not interfered.
Regarding how to ensure the stabilization of the operation of the switching mechanism 300 when the motor 320 moves up and down, specifically:
the switching mechanism 300 further includes: the base 310, the motor 320 is fixedly connected to the middle part of the base 310; a slide bar 311 connected to a side portion of the base 310; a chute 331 disposed on the bracket 330; the sliding rod 311 slides in the sliding groove 331; the chute 331 has a slope such that the base 310 drives the motor 320 to move obliquely so that the second driving teeth 323 can be engaged with the first small teeth 325 and the second large teeth 327.
Because the first big tooth 324, the first small tooth 325, the second small tooth 326 and the second big tooth 327 of the switching mechanism 300 are different in size, stable engagement between teeth cannot be ensured when the motor 320 slides vertically in a straight line, so that the motor 320 needs to be controlled to slide down obliquely, the sliding rod 311 on the base 310 connected with the motor 320 slides in the inclined sliding groove 331 on the bracket 330, and the inclination of the sliding groove 331 enables the motor 320 to slide down obliquely, so that the running stability of the switching mechanism 300 is ensured.
Regarding the operation timing of the cleaning mechanism 400, specifically:
the outer wall of the filling pipe 410 is fixedly connected with a second hydraulic rod 440, and the first circular plate 441 is connected with the output end of the second hydraulic rod 440; after the motor 320 moves down, after the pressure sensor 450 receives a continued increase in pressure, the motor 320 slides to the middle of the stroke, and then the second hydraulic rod 440 is extended to move the first circular plate 441 up.
At the end of grouting, after the pressure sensor 450 detects that the grouting pressure reaches a preset value, the first hydraulic rod 340 is shortened to enable the motor 320 to slide to the middle of the sliding stroke, at this time, the motor 320 no longer drives the pressurizing pump 240 to operate and the rotating shaft 220 to rotate, and at the same time, the second hydraulic rod 440 is lengthened, so that the cleaning mechanism 400 operates.
Regarding the structure of the support mechanism 100, specifically:
also included is a support mechanism 100, the support mechanism 100 comprising: a support plate 110, the grout cylinder 210 being connected to an upper surface of the support plate 110; the moving wheel 120, the moving wheel 120 rotates at the lower portion of the support plate 110.
The support plate 110 provides installation for the cement paste cartridge 210, and the movable wheels 120 at the lower part of the support plate 110 are arranged to facilitate movement of the cement paste cartridge, so that the cement paste injection device is convenient to move to different grouting positions for grouting operation.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limited thereto; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features can be replaced with equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The grouting device is used for injecting cement slurry between the overlapped tunnels through a pre-buried grouting pipe (500), and is characterized in that;
the grouting device comprises a processing mechanism (200), wherein the processing mechanism (200) injects slurry into a tunnel gap through a cement slurry cylinder (210);
still including being used for discharging clean mechanism (400) of cement in pre-buried slip casting pipe (500), clean mechanism (400) include:
a filling pipe (410), one end of which is connected with the cement paste cylinder (210) and the other end of which is connected with the pre-buried grouting pipe (500);
an auxiliary cylinder (430) connected to an outer wall of the filler pipe (410) and filled with water inside;
-a conduit (435) connected between the auxiliary cartridge (430) and the filler pipe (410);
a first circular plate (441) that slides inside the auxiliary cylinder (430);
after grouting is finished, the first circular plate (441) moves upwards to enable water in the auxiliary cylinder (430) to be injected into the embedded grouting pipe (500) through the pipeline (435), so that cement paste in the embedded grouting pipe (500) is discharged;
the cleaning mechanism (400) further includes:
a ball valve (420) disposed within the filler tube (410);
a gear (421) connected to a valve stem of the ball valve (420);
a second circular plate (431) that slides inside the auxiliary cylinder (430) and is located at the upper part of the first circular plate (441);
a rack (433) connected to an upper surface of the second circular plate (431) and engaged with the gear (421);
when the first circular plate (441) moves upwards, the second circular plate (431) is pushed to move upwards by water in the auxiliary cylinder (430), so that the second circular plate (431) drives the rack (433) to move upwards, and the rack (433) drives the gear (421) to rotate, so that the ball valve (420) is closed;
the cleaning mechanism (400) further includes:
a baffle ring (434) connected to an upper port of the auxiliary cylinder (430);
a blocking block (432) which is connected to the upper surface of the second circular plate (431) and is attached to the inner wall of the auxiliary cylinder (430);
the blocking block (432) is driven by the second circular plate (431) to block or avoid an opening which is formed in the auxiliary cylinder (430) and communicated with the pipeline (435).
2. The overlapping tunnel reservation grouting device of claim 1, wherein;
further comprising a handling mechanism (200), the handling mechanism (200) comprising:
a rotating shaft (220) coaxially and rotatably connected to the cement paste cylinder (210);
and the crushing knife (230) is connected to the side wall of the rotating shaft (220) and is positioned in the cement paste barrel (210).
3. The overlapping tunnel reservation grouting device of claim 2, wherein;
the processing mechanism (200) further comprises:
a pressurizing pump (240) connected to the cement paste cartridge (210);
and a pressurizing pipe (242) connected to the pressurizing pump (240) for introducing air of the pressurizing pump (240) into the cement paste cartridge (210).
4. A stacked up and down tunnel reservation grouting device as claimed in claim 3, wherein;
also included is a switching mechanism (300), the switching mechanism (300) comprising:
a motor (320);
a first driving tooth (322) connected to a driving shaft of the motor (320);
a second driving tooth (323) connected to a driving shaft of the motor (320) and located at a lower portion of the first driving tooth (322);
a first large tooth (324) connected to an upper portion of the rotating shaft (220);
a first small tooth (325) connected to an upper portion of the rotating shaft (220) and located at a lower portion of the first large tooth (324);
a pump shaft (241) provided to the pressurizing pump (240);
a second small tooth (326) connected to the upper part of the pump shaft (241);
a second large tooth (327) connected to an upper portion of the pump shaft (241) and located at a lower portion of the second small tooth (326);
the first driving tooth (322) and the second driving tooth (323), the first big tooth (324) and the second big tooth (327) have the same diameter;
the motor (320) has an up-shift state and a down-shift state;
in the up-shift state, the first driving teeth (322) are meshed with the first big teeth (324) and the second small teeth (326), so that the rotation speed of the pump shaft (241) of the booster pump (240) is increased, the rotation speed of the rotating shaft (220) is reduced, and the torque is increased;
in the downward movement state, the second driving tooth (323) is meshed with the second big tooth (327) and the first small tooth (325), so that the rotation speed of the pump shaft (241) of the booster pump (240) is reduced and the torque is increased, and the rotation speed of the rotating shaft (220) is increased.
5. The overlapping tunnel reservation grouting device of claim 4, wherein;
the switching mechanism (300) further includes:
a bracket (330) connected to the cement paste cartridge (210);
a first hydraulic lever (340) connected to the top of the bracket (330);
the output end of the first hydraulic rod (340) horizontally slides on the top of the motor (320);
the first hydraulic rod (340) can extend to drive the motor (320) to move downwards.
6. The overlapping tunnel reservation grouting device of claim 5, wherein;
the switching mechanism (300) further includes:
the motor (320) is fixedly connected to the middle part of the base (310);
a slide bar (311) connected to a side of the base (310);
the sliding groove (331) is arranged on the bracket (330);
the sliding rod (311) slides in the sliding groove (331);
the runner (331) has a slope that causes the base (310) to drive the motor (320) to move obliquely so that the second drive tooth (323) can engage with the first small tooth (325) and the second large tooth (327).
7. The overlapping tunnel reservation grouting device of claim 6, wherein;
the outer wall of the filling pipe (410) is fixedly connected with a second hydraulic rod (440), and the first circular plate (441) is connected to the output end of the second hydraulic rod (440).
8. The overlapping tunnel reservation grouting device of claim 2, wherein;
further comprising a support mechanism (100), the support mechanism (100) comprising:
a support plate (110), the grout cylinder (210) being connected to the upper surface of the support plate (110);
and a moving wheel (120), wherein the moving wheel (120) rotates at the lower part of the supporting plate (110).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311549769.4A CN117266888B (en) | 2023-11-21 | 2023-11-21 | Grouting device is reserved in upper and lower overlapping tunnel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311549769.4A CN117266888B (en) | 2023-11-21 | 2023-11-21 | Grouting device is reserved in upper and lower overlapping tunnel |
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| CN117266888A CN117266888A (en) | 2023-12-22 |
| CN117266888B true CN117266888B (en) | 2024-01-23 |
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|---|---|
| CN117266888A (en) | 2023-12-22 |
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