CN210483740U - Muck pumping system based on earth pressure balance type shield machine - Google Patents
Muck pumping system based on earth pressure balance type shield machine Download PDFInfo
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- CN210483740U CN210483740U CN201921032013.1U CN201921032013U CN210483740U CN 210483740 U CN210483740 U CN 210483740U CN 201921032013 U CN201921032013 U CN 201921032013U CN 210483740 U CN210483740 U CN 210483740U
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Abstract
The utility model relates to a dregs pumping system based on earth pressure balance type shield constructs machine, through screw conveyer, arrange the dregs that the blade disc cut off to the belt feeder, carry the dregs to the pumping unit through the belt feeder, the pumping unit arranges the dregs to the pumping unit department of shaft mouth department through the mud pipe, the shaft mouth pumping unit pumps the dregs to ground dregs storage department again; the pumping unit is arranged on the back matching trolley, the shield machine tunnels, the trolley is pulled to move, when the tunneling distance is continuously increased, the corresponding extension pipe extends, when the length of the extension pipe is reached, only the mud discharge pipe needs to be increased, the soil discharge speed of the pumping unit is adjusted, the soil discharge while tunneling can be guaranteed, when the distance of assembling the ring pipe piece is reached, the tunneling is stopped, the assembling of the pipe piece is carried out, the tunneling is continued after the assembling, and the soil discharge continues through the pumping unit, so that the circulation is realized. The utility model discloses a continuous transport of dregs has simplified the dregs and has arranged the flow, has to arrange sediment efficient, characteristics such as tunnel cleanliness height.
Description
Technical Field
The utility model belongs to the technical field of the tunneling technique and specifically relates to a dregs pumping system based on earth pressure balanced type shield constructs machine.
Background
The shield machine is a tunnel boring machine using a shield method, and the shield method is a method in which a tunnel lining segment is constructed while the boring machine is boring. The earth pressure balance type shield machine is widely used due to the advantages of small occupied space, low price, wide application range and the like.
At present, in the domestic earth pressure balance type shield tunneling machine, a motor drives a cutting cutter head to rotate, and a shield hydraulic cylinder (jack) is opened to propel the shield forward. The cut dregs enter the mud bin. And then opening the screw conveyor, discharging the cut waste soil onto the belt conveyor, conveying the waste soil onto a battery residue soil vehicle through the belt conveyor, stopping tunneling when the tunneling reaches a distance for assembling a ring pipe piece, assembling the pipe piece, conveying the waste soil to a vertical shaft, hoisting the waste soil to a ground waste soil storage part through a gantry crane, returning the residue soil vehicle, and continuing tunneling when the assembling of the ring pipe piece is completed and the residue soil vehicle returns to the proper position, so that the construction is shown in the figure 1.
However, in the construction method adopting the belt conveyor and the muck truck for conveying, the maximum speed of the muck truck in an unloaded state is not more than 8km/h, the maximum speed of the muck truck in a fully loaded state is not more than 5km/h, and the average time for assembling the ring of pipe segments is about 25 min. If 3 rows of muck trucks are provided, the hoisting speed of the gantry crane is 3 min/row, and when the muck trucks are 0.77km away from the vertical shaft and the muck trucks return to the place, the assembling machine just finishes assembling and can continue to tunnel. However, when the distance between the muck truck and the vertical shaft is more than 0.77km, when the segment is assembled by the assembling machine, the tunneling can be continued only after the muck truck arrives. Therefore, when the tunneling distance is larger, the time for waiting for the muck truck is longer, and when the middle-size and small-size soil pressure balance type shield machine is constructed, the tunnel end face is small in size, a turnout cannot be arranged, only one group of muck trucks can be used for conveying muck, the tunneling speed of the shield machine can be seriously influenced, the efficiency is low, the construction period is long, the cost is increased, and the like.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the provided muck pumping system based on the earth pressure balanced type shield machine has the characteristics of high slag discharge efficiency, high tunnel cleanliness and the like.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a dregs pumping system based on earth pressure balanced type shield constructs machine, includes the screw machine of being connected with shield constructs machine tunnelling blade disc and sets up the belt feeder that is used for transporting dregs in the screw machine rear, still includes pumping unit, pumping unit pass through the pipeline with the direct pump sending of dregs to ground dregs storage department.
Further say, pumping unit including set up the first pumping unit on the supporting platform truck of back in the tunnel and set up the second pumping unit in perpendicular import department, be connected by extension pipe and multistage mud pipe between first pumping unit and the second pumping unit.
Still further say, pumping unit including set up in the filter equipment on upper portion, set up in the agitating unit at the middle part and set up in the conveyor of bottom, the dregs get into agitating unit stirring behind the great particle diameter gravel of filter equipment filtering and reach the slump that the designing requirement, conveyor include first transfer passage, second transfer passage and route switching connecting valve, route switching connecting valve in proper order alternate with first transfer passage, second transfer passage intercommunication, dregs are incessant in turn by first transfer passage and second transfer passage discharge.
Still further, the first conveying path of the present invention includes a first conveying cylinder and a first conveying cylinder, and the second conveying path includes a second conveying cylinder and a second conveying cylinder; the first conveying oil cylinder retracts, the first conveying oil cylinder sucks the residue soil, and meanwhile, the second conveying oil cylinder extends out to discharge the air in the second conveying oil cylinder; and the second conveying oil cylinder retracts, the second conveying oil cylinder sucks the residue soil, and meanwhile, the first conveying oil cylinder extends out to discharge the air in the first conveying oil cylinder.
Still further say, route switching connecting valve be the S valve, the S valve commutates through the swing arm hydro-cylinder, the piston rod of swing arm hydro-cylinder support in the S pipe welding body surface of S valve.
The construction method comprises the following steps:
1) when the tunneling distance of the shield tunneling machine reaches a ring pipe segment assembling distance, the shield tunneling machine stops tunneling to assemble a ring pipe segment, and meanwhile, the spiral conveyor discharges the residue soil cut by the cutter head to the belt conveyor;
2) the belt conveyor conveys the dregs into the pumping unit;
3) the pumping unit pumps the muck to a ground muck storage place through a pipeline;
4) after the ring pipe pieces are assembled, the shield machine tunnels again, the pumping unit moves towards the tunneling direction, the tunneling distance is increased continuously, the length of a pipeline connected with the pumping unit is increased, the soil discharging speed of the pumping unit is adjusted, and soil is discharged while tunneling;
5) and (4) circulating the steps 1) to 4).
Further say, pumping unit including set up the first pumping unit on the supporting platform truck of back in the tunnel and set up the second pumping unit in perpendicular import department.
Still further say, step 2) in, the belt feeder carries the dregs to the tunnel in during the pump sending unit on the supporting platform truck of back, the platform truck position keeps unchangeable along with shield constructs the machine static.
Still further say, step 3) in, the dregs are from first pumping unit by extension pipe and multistage mud pipe pump sending to second pumping unit, second pumping unit is again with dregs pump sending to ground dregs storage department.
Furthermore, in the step 3) of the utility model, the sludge discharging step is included after the sludge enters the pumping unit,
A. filtering and screening the residue soil to filter gravels with larger particle sizes so as to avoid pipeline blockage;
B. stirring the muck to ensure that the muck meets the slump required by the design;
C. the muck falls into a storage bin at the bottom of the pumping unit, the first conveying oil cylinder retracts, the first conveying cylinder sucks the muck, and meanwhile, the second conveying oil cylinder extends out to discharge air in the second conveying cylinder;
D. the S valve rotates around the transmission shaft under the pushing of the swing arm oil cylinder, when the valve port of the S valve is aligned with the first conveying cylinder, the first conveying oil cylinder extends out to extrude muck in the first conveying cylinder, the muck enters the S valve and is discharged through the mud pipe, meanwhile, the second conveying oil cylinder retracts, the second conveying cylinder sucks the muck, and the first conveying oil cylinder extends out to discharge air in the first conveying cylinder;
E. the S valve rotates around the transmission shaft under the pushing of the swing arm oil cylinder, the valve port of the S valve is aligned with the second conveying cylinder, and the second conveying cylinder extends out to extrude muck in the second conveying cylinder to enter the S valve and then is discharged through the mud pipe;
F. and C to E are circulated.
The utility model has the advantages that:
1. the continuous conveying of the muck is realized, the problem that long-time waiting for the muck car is needed when a belt conveyor and the muck car conveying construction method cannot set turnouts due to small tunnel end face size in the construction of small and medium-sized soil pressure balance type shield machines is solved, the tunneling speed of the soil pressure balance type shield machines is greatly improved, the construction efficiency is improved, and the construction cost is reduced.
2. The falling problem of the dregs in the conveying process is effectively controlled, the cleanness in the tunnel is guaranteed, and a clean and clean construction environment is provided.
3. The process of discharging and conveying the residue soil is simplified, the residue soil can be discharged and conveyed only by the pumping unit, the extension pipe and the sludge discharge pipe, and the whole process is more mechanical and automatic.
Drawings
FIG. 1 is a schematic view of a prior art construction method;
FIG. 2 is a schematic view of the construction method of the present invention;
FIG. 3 is a schematic structural view of the muck pumping unit of the present invention;
FIG. 4 is a cross-sectional view taken along plane A-A of FIG. 3;
FIG. 5 is a top view of FIG. 3;
FIG. 6 is a cross-sectional view taken along plane A-A of FIG. 5;
in the figure: 1. a storage bin; 2. a sludge discharge pipe; 3. a stirring driven device; 4. a vibration motor; 5. a hydraulic motor; 6. a first swing arm cylinder; 7. a second swing arm oil cylinder 8 and a first conveying cylinder; 9. a second delivery cylinder; 10. a first delivery cylinder; 11. a second delivery cylinder; 12. an S valve; 13. a stirring baffle; 14. filtering the screen; 15. a stirring device; 16. a drive shaft; 17. a screw machine; 18. a belt conveyor; 19. a trolley; 20. a pumping unit; 21. an extension pipe; 22. and a muck storage place.
Detailed Description
The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 2-6, a method and a system for pumping dregs based on an earth pressure balance type shield machine are provided.
When the shield machine stops to assemble the segments, the residue soil cut by the cutter head is discharged to the belt conveyor 18 through the screw conveyor 17, the residue soil is conveyed to the pumping unit 20 through the belt conveyor 18, the pumping unit 20 discharges the residue soil to the pumping unit 20 at the position of the vertical shaft opening through the sludge discharge pipe 2, and the residue soil is pumped to the ground residue soil storage position 22 by the pumping unit 20 at the vertical shaft opening, as shown in fig. 2.
The pumping unit 20 is installed on the back matching trolley 19, when one ring pipe piece is assembled, the shield tunneling machine starts tunneling again, the trolley 19 is pulled to move, when the tunneling distance is increased continuously, the corresponding extension pipe 21 extends, when the length of the extension pipe 21 is reached, the number of the mud discharging pipes 2 is increased, the soil discharging speed of the pumping unit 20 is adjusted, soil discharging while tunneling can be guaranteed, when the distance of one ring pipe piece is assembled, tunneling is stopped, pipe piece assembling is carried out, tunneling is continued after the assembling, and soil discharging continues to be carried out by the pumping unit, so that circulation is realized. Therefore, the continuous conveying of the muck is realized, the problem that long-time waiting for the muck car is needed when a belt conveyor and a muck car conveying construction method cannot set turnouts due to small size of the end face of a tunnel in the construction of a small and medium-sized soil pressure balance type shield machine is solved, the tunneling speed of the soil pressure balance type shield machine is greatly improved, the construction efficiency is improved, and the construction cost is reduced.
The structural composition of the pumping unit is shown in fig. 3-6, and comprises: the device comprises a storage bin 1, a sludge discharge pipe 2, a stirring driven device 3, a vibrating motor 4, a hydraulic motor 5, a swing arm oil cylinder 6, a swing arm oil cylinder 7, a first conveying cylinder 8, a second conveying cylinder 9, a first conveying cylinder 10, a second conveying cylinder 11, an S valve 12, a stirring baffle 13, a filter screen 14, a stirring device 15 and a transmission shaft 16.
When the dregs enter the storage bin 1, the dregs firstly enter a filter screen 14, and are filtered and sieved under the vibration of a vibration motor 4 to filter gravels with larger grain sizes so as to avoid pipeline blockage; when the muck enters the layer of the stirring baffle 13, the hydraulic motor 5 and the stirring driven device 3 drive the stirring device 15 to stir the muck, so that the muck is ensured to reach the slump required by the design; when the dregs fall into the bottom of the storage bin 1, the first conveying oil cylinder 10 retracts to suck the dregs into the first conveying cylinder 8, and meanwhile, the second conveying oil cylinder 11 extends to discharge air in the second conveying cylinder 9; when the first conveying oil cylinder 10 retracts, the first swing arm oil cylinder 6 extends, the second swing arm oil cylinder 7 retracts, and the S valve 12 rotates around the transmission shaft 16; when the valve port of the S valve 12 is aligned with the first conveying cylinder 8, the first conveying cylinder 10 extends out to extrude the dregs in the first conveying cylinder 8 to enter the S valve 12, and the dregs are discharged through the mud pipe 2; meanwhile, the second conveying oil cylinder 11 retracts to suck the muck into the second conveying cylinder 9, after the first conveying oil cylinder 10 extends out, the first swing arm oil cylinder 6 retracts, the second swing arm oil cylinder 7 extends out, and the S valve 12 rotates around the transmission shaft 16; when the valve port of the S valve 12 is aligned with the second conveying cylinder 9, the second conveying cylinder 11 extends out to extrude the dregs in the second conveying cylinder 9 to enter the S valve 12, and then the dregs are discharged through the mud pipe 2, and meanwhile, the first conveying cylinder 10 retracts to suck the dregs, so that the circulation is realized.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (5)
1. The utility model provides a dregs pumping system based on earth pressure balanced type shield constructs machine, includes the screw machine of being connected with shield constructs machine tunnelling blade disc and sets up in the belt feeder that the screw machine rear is used for transporting dregs, its characterized in that: the device also comprises a pumping unit which directly pumps the muck to a ground muck storage place through a pipeline.
2. The muck pumping system based on the earth pressure balanced shield machine, as recited in claim 1, characterized in that: the pumping unit comprises a first pumping unit arranged on a rear matching trolley in the tunnel and a second pumping unit arranged at a vertical inlet, and the first pumping unit and the second pumping unit are connected through an extension pipe and a multi-section sludge discharge pipe.
3. The muck pumping system based on the earth pressure balanced shield machine, as recited in claim 1, characterized in that: the pumping unit comprises a filtering device arranged on the upper portion, a stirring device arranged on the middle portion and a conveying device arranged on the bottom portion, the muck enters the stirring device after being filtered by the filtering device to be stirred to reach the slump required by the design, the conveying device comprises a first conveying passage, a second conveying passage and a passage switching connecting valve, the passage switching connecting valve is sequentially and alternately communicated with the first conveying passage and the second conveying passage, and the muck is alternately and uninterruptedly discharged by the first conveying passage and the second conveying passage.
4. The muck pumping system based on the earth pressure balanced shield tunneling machine according to claim 3, wherein: the first conveying passage comprises a first conveying oil cylinder and a first conveying cylinder, and the second conveying passage comprises a second conveying oil cylinder and a second conveying cylinder; the first conveying oil cylinder retracts, the first conveying oil cylinder sucks the residue soil, and meanwhile, the second conveying oil cylinder extends out to discharge the air in the second conveying oil cylinder; and the second conveying oil cylinder retracts, the second conveying oil cylinder sucks the residue soil, and meanwhile, the first conveying oil cylinder extends out to discharge the air in the first conveying oil cylinder.
5. The muck pumping system based on the earth pressure balanced shield tunneling machine according to claim 3, wherein: the passage switching connecting valve is an S valve, the S valve is reversed through a swing arm oil cylinder, and a piston rod of the swing arm oil cylinder abuts against the surface of an S pipe welding body of the S valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921032013.1U CN210483740U (en) | 2019-07-03 | 2019-07-03 | Muck pumping system based on earth pressure balance type shield machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921032013.1U CN210483740U (en) | 2019-07-03 | 2019-07-03 | Muck pumping system based on earth pressure balance type shield machine |
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| CN210483740U true CN210483740U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921032013.1U Active CN210483740U (en) | 2019-07-03 | 2019-07-03 | Muck pumping system based on earth pressure balance type shield machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219665A (en) * | 2019-07-03 | 2019-09-10 | 江苏格睿特管网工程有限公司 | Dregs pumping engineering method and its system based on earth pressure balance shield machine |
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2019
- 2019-07-03 CN CN201921032013.1U patent/CN210483740U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219665A (en) * | 2019-07-03 | 2019-09-10 | 江苏格睿特管网工程有限公司 | Dregs pumping engineering method and its system based on earth pressure balance shield machine |
| CN110219665B (en) * | 2019-07-03 | 2024-03-19 | 江苏格睿特管网工程有限公司 | Residue soil pumping construction method and system based on soil pressure balance type shield tunneling machine |
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