CN212985230U - Pressure double-control tape-mold grouting all-in-one machine - Google Patents
Pressure double-control tape-mold grouting all-in-one machine Download PDFInfo
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- CN212985230U CN212985230U CN201921939928.0U CN201921939928U CN212985230U CN 212985230 U CN212985230 U CN 212985230U CN 201921939928 U CN201921939928 U CN 201921939928U CN 212985230 U CN212985230 U CN 212985230U
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Abstract
The utility model relates to a two accuse area mould slip casting all-in-one of pressure is particularly useful for using at tunnel, gallery, geotechnical engineering, foundation engineering, pile foundation engineering, hydraulic engineering, chemical industry department, metallurgical steel department. The utility model discloses a running gear, slurrying mechanism, slip casting mechanism, pumping mechanism and PLC control mechanism, the utility model discloses a double-deck design, upper strata system thick liquid, the thick liquid is mixed to the lower floor, and front end slip casting, slip casting pressure and flow are automatic to be printed, realize that an equipment "beats the world", when reducing the equipment input, improve more than the slip casting work efficiency twice, also reduced field operation personnel's intensity of labour, improve tunnel lining's quality simultaneously greatly. The grouting material adopts high-fluidity micro-expansive early-strength retarding filling mortar to form an organic whole with the secondary lining concrete, and overcomes the defect of 'two skins' of the traditional grout and the secondary lining concrete.
Description
Technical Field
The utility model relates to a two accuse vaulting poles of pressure area mould slip casting all-in-one is particularly useful for using at tunnel, gallery, geotechnical engineering, foundation engineering, pile foundation engineering, hydraulic engineering, chemical industry department, metallurgical steel department.
Background
Since 2010, a plurality of railway tunnels have the defects of arch cracking, arch stripping, repairing and stripping, knocking and rattling, water leakage, channeling, repairing and stripping, water burst and the like, and the driving safety is seriously threatened. When some lines are statically received, the opening of the lines is seriously delayed due to the quality problem of the tunnel. The operation and the safety are seriously affected, and the economic loss is huge. In order to solve the problem of the void of the vault of the tunnel lining, avoid the phenomenon of 'two-layer skin' of later-stage void grouting, timely repair a cold joint and a circumferential construction joint of the vault lining construction, timely remedy insufficient lining thickness caused by various reasons, and therefore grouting needs to be carried out when concrete is not initially set.
The traditional process is to carry out radar scanning after the lining concrete is poured, find the cavity to carry out punching and grouting, and find the problem solution in a post-grouting mode.
The RPC pre-buried grouting pipe technology is a temporary grouting process requirement for tunnel mould grouting, and the technical index of the grouting pipe and the characteristics of grouting materials are selected according to the process requirement, the grouting pipe is high in compression strength and bending strength, the grouting materials are low in water-cement ratio, high in viscosity and high in fluidity, and the conventional means at present hardly meet the requirements and ensure high efficiency.
In order to enhance the supervision of tunnel quality, a construction unit monitors grouting at any time and then reversely pushes the quality of lining concrete, so that higher requirements are provided for grouting amount and grouting time, a commercially available grouting machine is single in function, and the grouting amount, the grouting time and the grouting pressure cannot be controlled, so that the company carries out related design to solve the problems and further meets the field requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a be applied to two lining vaults area mould slip casting equipment in tunnel is provided, this equipment pumping pressure is big, high in production efficiency, especially, be fit for the transport of low water-to-cement ratio, high viscosity mortar, dual pressure control function has simultaneously, the superpressure automatic shutdown avoids vault pressure too big when slip casting, cause two lining damages, slip casting is accomplished the slip casting simultaneously time of slip casting, real time monitoring such as grouting volume, the lining concrete construction quality has been improved greatly, satisfy the technical requirement of lining vault area mould slip casting.
The utility model adopts the following technical scheme:
the utility model comprises a walking mechanism, a pulping mechanism, a grouting mechanism, a pumping mechanism and a PLC control mechanism,
the walking mechanism consists of a frame, front wheels, rear wheels and a handheld pull rod device, the handheld pull rod device comprises a pull rod seat and a pull rod hinged with the pull rod seat,
the pulping mechanism comprises a pulping barrel and a pulp storage tank arranged at the lower end of the pulping barrel, the pulp storage tank is fixedly arranged at the upper end of the frame, a pulp storage tank stirrer is arranged in the pulp storage tank, the pulping barrel is provided with a driving motor, a speed reducer and a filter screen, the output end of the driving motor is connected with the input end of the speed reducer through a transmission belt, the output end of the speed reducer is connected with a driving device of the pulping barrel, the filter screen is arranged at the feed hopper of the pulping barrel,
the pumping mechanism comprises a slurry outlet pipe, a connecting hose, a piston pump connector, a piston pump, a pressure release valve and a grouting pipe connector which are sequentially communicated,
a valve is arranged between the pulp outlet pipe and the connecting hose,
a pressure buffer, a flow sensor and a pressure sensor are arranged between the pressure release valve and the grouting pipe connector, an electromagnetic flowmeter is arranged at the upper end of the flow sensor,
a belt protective shell is arranged on the outer side of the transmission belt,
the frame is also provided with a pull rod limiting clamp, the front end of the pull rod limiting clamp is U-shaped, the concave part of the pull rod limiting clamp is matched with the pull rod, the top of the pull rod is provided with a push rod,
the piston pump is provided with a piston pump repairing opening, the valve is a DKS rapid butterfly valve, two ends of the connecting hose are provided with hoops,
the model of the electromagnetic flowmeter is QJLD32 type electromagnetic flowmeter, and the model of the electric cabinet is DHK II type electric cabinet.
The utility model discloses an actively the effect as follows:
the utility model discloses a double-deck design, upper strata system thick liquid, the thick liquid is mixed to the lower floor, the front end slip casting, and slip casting pressure and flow are automatic to be printed, realize that an equipment "beat under the sky", when reducing the equipment and drop into, improve more than the slip casting work efficiency twice, have also reduced field operation personnel's intensity of labour, improve tunnel lining's quality simultaneously greatly.
The utility model is suitable for a:
(1) the composite material is used for lining, anchoring, supporting and grouting in tunnel and gallery construction.
(2) In geotechnical engineering, the grouting material is suitable for medium-low pressure filling or crack grouting, permeation grouting, compaction grouting and split grouting.
(3) In the foundation engineering, the method can be used for reinforcing soft foundation, rectifying foundation settlement and preventing leakage pressure grouting.
(4) In pile foundation engineering, the mortar can be used for grouting in rotary spraying piles and stirring piles.
(5) In the chemical sector, for transporting pasty raw materials and other media.
(6) In the metallurgical steel department, the method is used for conveying and pressure injection of refractory materials with better fluidity.
(7) Equipped with an air compressor and a spray gun, the equipment can also be used for spraying and plastering continuous walls.
(8) The vertical or horizontal conveying of the plastering mortar and the masonry mortar on the ground and the wall in various brick-concrete and block structures can be completed in the building engineering.
(9) In hydraulic engineering, the grouting material is used for hydropower stations, reservoirs and dam curtain grouting, consolidation grouting, backfill grouting, well wall reinforcement and the like.
Use the utility model has the advantages as follows:
1. the pumping pressure is high, the maximum pressure can reach 8MPa, and the method is suitable for grouting low-water-ash high-viscosity mortar.
2. And the vault pressure is transmitted to the terminal in a wireless manner, so that real-time wireless remote transmission is performed.
3. The pressure of the pump head and the pressure of the vault are monitored in real time, and the machine is automatically stopped under overpressure.
4. The grouting pressure, the grouting amount, the grouting time and the stopping time in the grouting process can be recorded and stored.
5. Stirring, storing and grouting are integrated, the use is convenient, the working efficiency is high, and the production capacity is 8m3/h。
6. The grouting pipes are connected by adopting quick connectors and are easy to disassemble and clean.
7. Convenient operation, safety and reliability, and easy maintenance.
8. Compact structure, move nimble, be particularly suitable for the narrow and small place in operation space.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the structure schematic diagram of the pumping mechanism of the present invention.
Detailed Description
As shown in attached figures 1-2, the utility model comprises a walking mechanism, a pulping mechanism, a grouting mechanism, a pumping mechanism and a PLC control mechanism,
the walking mechanism comprises a rack 1, front wheels 2, rear wheels 3 and a handheld pull rod device, the handheld pull rod device comprises a pull rod seat 4 and a pull rod 5 hinged with the pull rod seat 4, a pull rod limiting clamp 30 is further arranged on the rack 1, the front end of the pull rod limiting clamp 30 is U-shaped, the concave part of the pull rod limiting clamp is matched with the pull rod 5, and a push rod 6 is arranged at the top of the pull rod 5.
The pulping mechanism comprises a pulping barrel 8 and a pulp storage tank 7 arranged at the lower end of the pulping barrel 8, the pulp storage tank 7 is fixedly arranged at the upper end of the frame 1, a pulp storage tank stirrer is arranged in the pulp storage tank 7, a driving motor 12, a speed reducer 11 and a filter screen 10 are arranged on the pulping barrel 8, the output end of the driving motor 12 is connected with the input end of the speed reducer 11 through a transmission belt 13, and a belt protective housing 14 is arranged on the outer side of the transmission belt 13. The output end of the speed reducer 11 is connected with the driving device of the pulping barrel 8, and the filter screen 10 is arranged at the feed hopper 9 of the pulping barrel 8.
The pump mechanism is connected with a DKS fast butterfly valve through a slurry outlet pipe 18, the output end of the pump mechanism is connected with a connecting hose 20 through a throat hoop, the other end of the hose is in flexible connection with a piston pump connector 21 through the throat hoop, the piston pump is provided with a piston pump repair opening 22 which is convenient to maintain, the piston pump slurry outlet is provided with a pressure release valve 23 and a pressure release valve 24 which can release pressure at the position after the use of equipment is finished, slurry is injected into the slurry injection hose through a pressure pump and a slurry injection pipe connector 29 through a flow sensor 26 and finally reaches a cavity to be injected, after the slurry is fully injected, certain pressure is generated and fed back to a pressure sensor 28 to reach the set pressure, the pressure sensor transmits data to a pressure gauge through a pressure buffer 25, the pressure gauge transmits the data to a control box when the. The injected body is metered in volume by an electromagnetic flow meter 27.
The working principle of the utility model is as follows:
the utility model discloses the motor has the work cam rotation of specific orbit through the speed reducer drive, promotes the piston and gos forward, and the return stroke makes the piston reset by the spring, forms the round trip of piston. When the piston returns, the working cylinder and the valve chamber form vacuum relatively, the upper valve ball falls, the upper valve chamber is closed, the lower valve ball rises, the lower valve chamber is opened, and mortar is sucked into the lower valve chamber and the working cylinder through the hopper and the mortar suction pipe. When the piston moves forward, the pressure in the working cylinder and the valve chamber rises, the lower valve ball falls, the lower valve chamber is closed, the upper valve ball rises, the upper valve chamber is opened, the piston cylinder pumps out mortar in the working cylinder and the valve chamber from the upper valve chamber, and the operation is repeated in such a circulating way to continuously pump out the mortar.
The pressure gauge is connected above the grouting pipe and the grouting connector, grouting pressure can be detected above the trolley, the purpose of double control is achieved, the pressure gauge of the grouting pipe is manually controlled, the pressure gauge on the machine is controlled by the machine, and double control of manpower and equipment is achieved
The working process of the utility model is as follows:
1. preparation before grouting
(1) The main grouting hole is connected with a grouting joint with a valve, a pressure gauge and a quick joint.
(2) And placing the tape mold grouting all-in-one machine. The equipment is placed below the last circulating lining and is placed close to the edge, and a safety warning light reflecting strip is attached.
(3) Preparing foot grouting materials, placing the foot grouting materials near a grouting machine, and carrying out damp-proof and waterproof isolation on the bottom of the foot grouting materials to prevent the grouting materials from being soaked by various water for construction and the like.
(4) And (5) according to the requirements of grouting equipment, wetting the equipment and the grouting pipe and performing pumping calibration.
2. Pulping operation process
(1) According to the material mixing ratio, the material quantity and the mixing water quantity of each disc are calculated, and a special water container is used.
(2) And starting the stirrer, adding half of the grouting material, adding all the mixing water, continuing to add the other half of the grouting material, stirring for 2-3 min (or according to the use instruction of the equipment), and stirring into uniform slurry.
(3) And opening the discharging valve of the pulping barrel to enable the pulp to flow out of the pulp storage barrel quickly, and then closing the discharging valve of the pulping barrel.
(4) Circularly pulping according to the method.
3. Grouting operation process
(1) And after the slurry is put into the slurry storage barrel, the grouting pipe is put at the edge of the drainage ditch, the grouting machine is started, and the grouting machine is stopped after all the water in the pipe body is extruded.
(2) And lifting the head of the grouting pipe to a lining trolley, and connecting the head of the grouting pipe with a grouting joint of the trolley. And the grouting pipe is fixed to the trolley, and the suspended part is fixed to the side surface of the trolley.
(3) And starting the vault belt mold grouting all-in-one machine to start grouting. And grouting is sequentially performed from the main grouting hole to the end mold grouting hole.
(4) And in the grouting process, observing the trolley pressure gauge and the end mold slurry discharge condition. If the end head mould has the circular arc highest point to leak the slurry, stopping the grouting machine, plugging the slurry leaking position in time, and continuing grouting until the slurry density of the end head discharged slurry is consistent with that of the pulping machine. And (5) changing to the next grouting hole, and the like.
During grouting, if the pressure gauge at the trolley exceeds 1.0MPa or the pressure gauge above the pressure buffer reaches 1.5MPa, the grouting system is automatically stopped and directly transferred to a lower grouting hole. Each grouting hole needs grouting, but when grouting holes which are not grouted flow out to reach the same density during grouting other holes, the holes can be closed without grouting. The RPC grouting pipe needs to be full, and the RPC grouting pipe is plugged in time when the grouting connecting piece is replaced after grouting is finished.
(5) And finishing grouting. And (5) finishing grouting of each hole, wherein the density of the slurry discharged from the highest position of the end mold is consistent with that in the slurry making barrel, and finishing grouting.
(6) And recording the total grouting amount, the grouting starting time and the grouting ending time.
(7) And (5) sample retention detection. Sampling is carried out at the tube heads of the grouting hose of the pulping machine and the trolley respectively, and the density of the slurry is detected. The density of the slurry should not differ by more than 1.5% from the laboratory test value. Sampling is carried out at the head of the trolley grouting hose, and the compressive strength and the breaking strength are tested. And (3) detecting the compressive strength and the flexural strength of the 28d strength test piece by detecting the slurry density and the strength under the same condition every time 10 plates are grouted.
4. Cleaning work after grouting
(1) The unused grouting material is pulled back to the dry position for storage and the necessary insulation and moisture protection measures are taken.
(2) A drainage facility is arranged in the tunnel, and the grouting all-in-one machine and the grouting pipeline can be cleaned in the tunnel; and if the tunnel has no drainage facility, pulling the equipment to a specified position outside the tunnel for equipment cleaning.
(3) Dismantle the slip casting connector to in time block up the RPC slip casting pipe mouth of pipe, prevent to leak thick liquid.
5. Surface protection of reserved grouting hole
And after the vault is qualified through geological radar or knocking detection, cutting and polishing the leakage part of the grouting pipe by using an angle grinder, and performing surface treatment by using modified epoxy resin. And brushing the modified epoxy resin glue with the grouting hole as the center in a completely compact inner grouting hole within the range of 10cm of radius. The grouting holes are not completely dense, the grouting holes are plugged by using epoxy resin cement, the plugging depth is not less than 5cm, then the surface is coated with epoxy resin glue, and the coating range is 10cm in radius.
To sum up, the utility model discloses a double-deck design, upper strata system thick liquid, the thick liquid is mixed to the lower floor, and the front end slip casting, slip casting pressure and flow are automatic to be printed, realize that an equipment "beat under the sky", when reducing equipment input, improve more than the slip casting work efficiency twice, have also reduced field operation personnel's intensity of labour.
The tunnel secondary lining vault belt mold grouting comprises a whole set of new grouting process, new tooling equipment and high-performance filling materials, and the grouting quality is greatly improved while the traditional grouting process is simplified. A construction process for grouting a tunnel secondary lining vault with a mold comprises the steps of arranging 4 vertical grouting holes in a vault template of a tunnel secondary lining trolley, installing active powder ultra-high-strength concrete (RPC) grouting pipes in the holes, and starting grouting before demolding after the secondary lining concrete is poured for 1-2 hours. The grouting material adopts high-fluidity micro-expansive early-strength retarding filling mortar to form an organic whole with the secondary lining concrete, and overcomes the defect of 'two skins' of the traditional grout and the secondary lining concrete.
Claims (5)
1. A pressure double-control tape-mold grouting all-in-one machine is characterized by comprising a traveling mechanism, a pulping mechanism, a grouting mechanism, a pumping mechanism and a PLC control mechanism,
the walking mechanism consists of a frame (1), front wheels (2), rear wheels (3) and a handheld pull rod device, the handheld pull rod device comprises a pull rod seat (4) and a pull rod (5) hinged with the pull rod seat (4),
the pulping mechanism comprises a pulping barrel (8) and a pulp storage tank (7) arranged at the lower end of the pulping barrel (8), the pulp storage tank (7) is fixedly arranged at the upper end of the frame (1), a pulp storage tank stirrer is arranged in the pulp storage tank (7), a driving motor (12), a speed reducer (11) and a filter screen (10) are arranged on the pulping barrel (8), the output end of the driving motor (12) is connected with the input end of the speed reducer (11) through a transmission belt (13), the output end of the speed reducer (11) is connected with a driving device of the pulping barrel (8), the filter screen (10) is arranged at a feed hopper (9) of the pulping barrel (8),
the pumping mechanism comprises a slurry outlet pipe (18), a connecting hose (20), a piston pump connector (21), a piston pump (23), a pressure release valve (24) and a grouting pipe connector (29) which are communicated in sequence,
a valve (19) is arranged between the pulp outlet pipe (18) and the connecting hose (20),
a pressure buffer (25), a flow sensor (26) and a pressure sensor (28) are arranged between the pressure release valve (24) and the grouting pipe connector (29), and an electromagnetic flowmeter (27) is arranged at the upper end of the flow sensor (26).
2. The integrated pressure double-control belt-die grouting machine according to claim 1, characterized in that a belt protective shell (14) is arranged outside the transmission belt (13).
3. The integrated pressure double-control tape-mold grouting machine according to claim 2, characterized in that a pull rod limiting clamp (30) is further arranged on the frame (1), the front end of the pull rod limiting clamp (30) is U-shaped, the concave part of the pull rod limiting clamp is matched with the pull rod (5), and a push rod (6) is arranged at the top of the pull rod (5).
4. The integrated pressure double-control tape-die grouting machine according to claim 3, wherein a piston pump repair opening (22) is formed in the piston pump (23), the valve (19) is a DKS fast butterfly valve, and two ends of the connecting hose (20) are provided with clamping hoops.
5. The integrated pressure double-control tape-mold grouting machine according to claim 4, wherein the electromagnetic flow meter (27) is a QJLD-32 type electromagnetic flow meter, and the electric cabinet (16) is a DHK-II type electric cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921939928.0U CN212985230U (en) | 2019-11-12 | 2019-11-12 | Pressure double-control tape-mold grouting all-in-one machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921939928.0U CN212985230U (en) | 2019-11-12 | 2019-11-12 | Pressure double-control tape-mold grouting all-in-one machine |
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| CN212985230U true CN212985230U (en) | 2021-04-16 |
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| CN201921939928.0U Active CN212985230U (en) | 2019-11-12 | 2019-11-12 | Pressure double-control tape-mold grouting all-in-one machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116146246A (en) * | 2023-03-06 | 2023-05-23 | 乌海市天裕工贸有限公司 | Constant-pressure grouting device for mining filling of mine |
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2019
- 2019-11-12 CN CN201921939928.0U patent/CN212985230U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116146246A (en) * | 2023-03-06 | 2023-05-23 | 乌海市天裕工贸有限公司 | Constant-pressure grouting device for mining filling of mine |
| CN116146246B (en) * | 2023-03-06 | 2024-03-26 | 乌海市天裕工贸有限公司 | Constant-pressure grouting device for mining filling of mine |
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