CN112502621B - Concrete injection supporting equipment for reinforcing shield tunnel - Google Patents
Concrete injection supporting equipment for reinforcing shield tunnel Download PDFInfo
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- CN112502621B CN112502621B CN202011370805.7A CN202011370805A CN112502621B CN 112502621 B CN112502621 B CN 112502621B CN 202011370805 A CN202011370805 A CN 202011370805A CN 112502621 B CN112502621 B CN 112502621B
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- injection
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- 238000002347 injection Methods 0.000 title claims abstract description 69
- 239000007924 injection Substances 0.000 title claims abstract description 69
- 230000008093 supporting effect Effects 0.000 title claims abstract description 52
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 23
- 238000005553 drilling Methods 0.000 claims abstract description 40
- 238000005507 spraying Methods 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims description 21
- 229920001971 elastomer Polymers 0.000 claims description 11
- 239000005060 rubber Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 3
- 239000002086 nanomaterial Substances 0.000 claims description 2
- 229920003051 synthetic elastomer Polymers 0.000 claims description 2
- 239000005061 synthetic rubber Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000011435 rock Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/003—Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/04—Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
-
- 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
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- 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
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/025—Grouting with organic components, e.g. resin
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
- F16L3/20—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
- F16L3/215—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction the movement being hydraulically or electrically controlled
- F16L3/217—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction the movement being hydraulically or electrically controlled hydraulically
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses concrete spraying support equipment for reinforcing a shield tunnel, which comprises a workbench fixed on a crawler traveling mechanism, wherein a drilling machine is installed on the workbench; the drilling machine comprises a hydraulic motor and a supporting top plate, wherein the base end of the hydraulic motor is sleeved on two linear guide rails on the drilling machine in a sliding mode, the output end of the hydraulic motor is arranged vertically upwards, two piston rods are connected to the inside of the drilling machine in a driving mode, and the piston rods extend upwards to the outside of the drilling machine and are fixedly connected with the supporting top plate; and a spraying seat for bearing concrete is fixed on the supporting top plate. According to the invention, the injection seat is arranged on the supporting top plate at the top of the drilling machine, so that concrete injection and anchor bolt support are combined, and after the anchor bolt support is completed, the auxiliary support can be completed in time by using a concrete injection mode; the tunnel support quality is guaranteed, and meanwhile the concrete conveying pipeline can be protected.
Description
Technical Field
The invention relates to the technical field of supporting, in particular to concrete injection supporting equipment for reinforcing a shield tunnel.
Background
With the continuous progress of science and technology, the number of trains running in China is continuously increased, and in order to save the running time of the trains, technicians continuously break through technical barriers on the running speed of the trains and reasonably optimize the running lines of the trains. Some train lines need to penetrate through a mountain body, so that a tunnel needs to be excavated in the mountain body, and in the tunnel excavation process, the support operation of the tunnel is not only related to the safety of personnel in the operation process, but also plays a vital role in the traffic process after the tunnel is formed. For the supporting operation of the tunnel, generally, the tunnel needs to be anchored, and for the supporting of some soft rocks, the common anchor bolt supporting is difficult to ensure the supporting effect, so concrete auxiliary supporting needs to be adopted, but in the prior art, the concrete auxiliary supporting and the anchor bolt supporting are respectively operated independently, the concrete is directly sprayed on the spraying seat, and the supporting effect can be achieved after the concrete is solidified.
Disclosure of Invention
The invention aims to solve the technical problems, and provides concrete injection support equipment for reinforcing a shield tunnel, which can realize the complete combination of anchor rod support and concrete injection, ensure the quality of tunnel support and protect a conveying pipeline for conveying concrete.
In order to achieve the purpose, the invention adopts the following technical scheme:
a concrete spraying support device for reinforcing a shield tunnel comprises a workbench fixed on a crawler traveling mechanism, wherein a drilling machine is installed on the workbench;
the drilling machine comprises a hydraulic motor and a supporting top plate, wherein the base end of the hydraulic motor is sleeved on two linear guide rails on the drilling machine in a sliding mode, the output end of the hydraulic motor is arranged vertically upwards, two piston rods are connected to the inside of the drilling machine in a driving mode, and the piston rods extend upwards to the outside of the drilling machine and are fixedly connected with the supporting top plate;
a spray seat for bearing concrete is fixed on the supporting top plate, a drill rod limiting hole corresponding to the output end of the hydraulic motor is formed in the center of the supporting top plate, and a through hole for a drill rod to pass through is formed in the position, corresponding to the drill rod limiting hole, of the spray seat;
still including setting up the concrete box on the workstation, concrete box output intercommunication has the injection pipeline, injection pipeline end-to-end connection has the shower nozzle, the shower nozzle extends to the opening part of injection seat.
Preferably, the spraying seat is formed by splicing a fixed bottom plate and three side plates which are fixed at the top of a supporting top plate, a first notch communicated with the drill rod limiting hole is formed in one side, corresponding to the opening of the spraying seat, of the supporting top plate, and a strip-shaped notch corresponding to the first notch is formed in the fixed bottom plate.
Preferably, three side plates on the injection seat are respectively connected with a support sleeve arranged on the fixed bottom plate in an elastic support manner, and the three side plates of the injection seat can elastically float up and down along the fixed bottom plate through the support sleeve.
Preferably, the support sleeve is arranged along the vertical direction, a guide post is arranged in the support sleeve, a sliding sleeve is sleeved on the periphery of the guide post, and a connecting pipe arranged on the sliding sleeve penetrates through a second notch of the support sleeve to be fixedly connected with the corresponding side plate; a first spring is connected between the top of the sliding sleeve and the top of the supporting sleeve, and a second spring is connected between the bottom of the sliding sleeve and the bottom of the supporting sleeve.
Preferably, a first guide wheel is installed at an outlet, corresponding to the concrete box, on the side wall of the drilling machine, a plurality of guide rings are distributed on the side wall of the drilling machine at equal intervals along the vertical direction above the first guide wheel, the injection pipeline sequentially passes through the first guide wheel and the plurality of guide rings and extends to the injection seat, the injection pipeline is divided on the injection seat to form two branch pipelines, and each branch pipeline is hung on the guide ring at the bottom of the injection seat.
Preferably, lie in on the workstation still be provided with the line concentration case between concrete box and the drilling machine, line concentration incasement portion is the casing form, line concentration roof portion is provided with two second leading wheels, two along the horizontal direction symmetry the second leading wheel can follow self axis free rotation, line concentration incasement is located and is provided with the direction counterweight wheel between two second leading wheels, and the spout that the center pin slip nestification of direction counterweight wheel was seted up to line concentration incasement wall, the injection pipeline runs through to the line concentration incasement outside behind the second leading wheel of cladding left second leading wheel, direction counterweight wheel, right side in proper order to the line concentration incasement.
Preferably, a concrete high-pressure jet pump is further installed inside the concrete box, the pressure of the concrete high-pressure jet pump is 20-38Mp, the jet pipeline is a flexible guniting pipe, and the guniting pipe is composed of an inner rubber layer, a steel wire reinforcing layer and an anti-corrosion outer rubber layer, wherein the inner rubber layer, the steel wire reinforcing layer and the anti-corrosion outer rubber layer are made of synthetic rubber and nano materials.
The invention has the beneficial effects that:
(1) According to the invention, the injection seat is arranged on the supporting top plate at the top of the drilling machine, so that concrete injection and anchor rod support are combined, and after the anchor rod support is completed, the auxiliary support can be completed in time by using a concrete injection mode. And the conveying pipeline that the concrete sprays is installed respectively on drilling machine and unable adjustment base through reasonable overall arrangement, avoids conveying pipeline to be extruded at unable adjustment base lift in-process to still be provided with the line concentration case between concrete case and the drilling machine, can realize receiving and releasing to conveying pipeline through the inside direction counter weight wheel of line concentration case, further guarantee conveying pipeline's safe operation.
(2) According to the invention, three side plates and the fixed base which form the injection seat can elastically float up and down along the fixed base plate through the supporting sleeve, and the three side plates can move up and down on the fixed base plate after being connected into a whole, so that the injection thickness of concrete can be changed, and different injection support requirements can be met.
Drawings
Fig. 1 is a structural schematic diagram of a concrete injection supporting device for reinforcing a shield tunnel according to a first angle, according to the present invention;
fig. 2 is a structural schematic diagram of a second angle of the concrete injection supporting device for reinforcing the shield tunnel according to the present invention;
FIG. 3 is a schematic view of an assembly structure of a spray seat and a supporting top plate of the concrete spray supporting equipment for reinforcing the shield tunnel according to the present invention;
fig. 4 is a schematic structural view of a concrete injection support device for shield tunnel reinforcement according to the present invention, in which an injection seat is removed from an attached net;
fig. 5 is a schematic view of an internal structure of a line concentration box in the concrete injection supporting equipment for reinforcing the shield tunnel according to the present invention;
fig. 6 is a schematic view of an internal structure of a support sleeve in the concrete injection support equipment for reinforcing the shield tunnel according to the present invention.
In the figure: 1. a work table; 2. a crawler travel mechanism; 3. a concrete box; 4. an injection duct; 5. a line concentration box; 6. a first guide wheel; 7. a guide ring; 8. fixing the bottom plate; 9. an injection seat; 10. a drilling machine; 11. a hydraulic motor; 12. a linear guide rail; 13. a piston rod; 14. attaching a net; 15. a support sleeve; 16. a spray head; 17. supporting a top plate; 18. a drill rod limiting hole; 19. a first notch; 20. a branch pipe; 21. a through hole; 22. a second guide wheel; 23. a guide counterweight wheel; 24. a chute; 25. a second notch; 26. a first spring; 27. a second spring; 28. a guide post; 29. a sliding sleeve; 30. and (4) connecting the pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the invention type, and are not to be construed as limiting the invention type.
In the description of the invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and in a simplified manner, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the invention "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the invention can be understood as a case-by-case basis to those of ordinary skill in the art.
The invention provides concrete spraying support equipment for reinforcing a shield tunnel, which comprises a workbench 1 fixed on a crawler walking mechanism 2, wherein a drilling machine 10 is installed on the workbench 1, the drilling machine 10 comprises a hydraulic motor 11 and a supporting top plate 17, the base end of the hydraulic motor 11 is sleeved on two linear guide rails 13 on the drilling machine 10 in a sliding manner, the output end of the hydraulic motor 11 is vertically and upwards arranged, two piston rods 13 are connected in the drilling machine 10 in a driving manner, the piston rods 13 upwards extend to the outside and are fixedly connected with the supporting top plate 17, the hydraulic motor 11 is used as a driving force to drive the drill rods to rotate at high speed, the hydraulic motor 11 upwards moves along the linear guide rails 13 by adopting the existing mature technology, the working principle is not repeated, the hydraulic motor 11 drives the drill rods to rotate at high speed and upwards moves along the linear guide rails 13 to realize the drilling operation of soft rock, and the supporting top plate 17 drives the piston rods 13 to extend out through a hydraulic system to realize the movement in the vertical direction;
a spray seat 9 for bearing concrete is fixed on the support top plate 17, because the cross section of the spray seat 9 is large, and the cross section of the piston rod 13 is very small relative to the cross section of the spray seat 9, in order to increase the stability of the spray seat 9, in the present embodiment, a support top plate 17 is connected to the end of the piston rod 16, the cross section of the support top plate 17 is between the piston rod 13 and the spray seat 9, and can play a role of intermediate transition, as shown in fig. 3, a drill rod limiting hole 18 corresponding to the output end of the hydraulic motor 11 is formed at the center of the support top plate 17, a through hole 21 for a drill rod to pass through is formed at the position of the spray seat 9 corresponding to the drill rod limiting hole 18, the cross sections of the drill rod limiting hole 18 and the through hole 21 are 2-3 times the size of the drill rod radius, and the drill rod is guaranteed to have enough movement allowance;
as a concrete box 3 for providing concrete, a concrete high-pressure jet pump is installed inside the concrete box 3, the pressure of the concrete high-pressure jet pump is 20-38Mp, and the jet pressure requirement of the concrete is met, the output end of the concrete box 3 is communicated with a jet pipeline 4, the jet pipeline 4 adopts a flexible jet pipe, the jet pipe is composed of an inner rubber layer, a steel wire reinforcing layer and a corrosion-resistant outer rubber layer, the inner rubber layer can reduce the conveying resistance of the concrete and avoid the bonding phenomenon of the concrete, the tail end of the jet pipeline 4 is connected with a spray head 16, the spray head 16 extends to the opening of a jet seat 9, the concrete inside the concrete box 3 is pumped to the spray head 16 through the concrete high-pressure jet pump, the spray head 16 uniformly sprays the concrete inside the jet seat 9, and the concrete and an anchor rod form a whole body after the concrete is solidified, so that the support function is realized.
The spray seat 9 is formed by fixing the splice of PMKD 8 and three curb plate at the top of supporting roof 17, and supporting roof 17 corresponds and sprays 9 open-ended one side and be formed with the first breach 19 that is linked together with the spacing hole 18 of drilling rod, is formed with the bar breach corresponding with first breach 19 on the PMKD 8, and the setting up of bar breach can make the drilling rod take out from the side or fill to hydraulic motor 11 inside on first breach 19 and PMKD 8, makes things convenient for personnel's drilling operation.
As a preferred embodiment, three side plates on the injection seat 9 are respectively connected with a support sleeve 15 arranged on the fixed bottom plate 8 in an elastic support manner, the three side plates of the injection seat 9 can elastically float up and down along the fixed bottom plate 8 through the support sleeve 15, and the three side plates can move up and down on the fixed bottom plate 8 after being connected into a whole, so that the injection thickness of concrete can be changed, and different injection support requirements can be met.
Specifically, as shown in fig. 6, the support sleeve 15 in this embodiment is disposed along the vertical direction, a guide post 28 is disposed inside the support sleeve, a sliding sleeve 29 is sleeved on the periphery of the guide post 28, and a connecting pipe 30 disposed on the sliding sleeve 29 passes through the second notch 25 of the support sleeve 15 and is fixedly connected to the corresponding side plate; a first spring 26 is connected between the top of the sliding sleeve 29 and the top of the supporting sleeve 15, a second spring 27 is connected between the bottom of the sliding sleeve 29 and the bottom of the supporting sleeve 15, when the spraying thickness of concrete needs to be reduced, the hydraulic system drives the piston rod 13 to jack up the fixed bottom plate 8, the three side plates are in contact with the rock roof, therefore, when the fixed bottom plate 8 moves upwards, the sliding sleeve 29 connected with the supporting rod 30 moves upwards along the guide column 28, the relative distance between the fixed bottom plate 8 and the tops of the three side plates is shortened, the height of concrete spraying is reduced, when the fixed bottom plate 8 moves upwards, the top of the sliding sleeve 29 compresses the first spring 26, the second spring 27 is in a stretching state, after the concrete spraying is finished, the piston rod 13 retracts, and the fixed bottom plate 8 can be restored to the initial position.
Because the injection pipeline 4 is made of flexible materials, the injection pipeline 4 extends upwards to the fixed base 8, and the fixed base 8 is driven by a hydraulic system to continuously lift, in order to avoid the extrusion phenomenon of the fixed base 8 on the injection pipeline 4 in the lifting process, the first guide wheel 6 is installed on the side wall of the drilling machine 10 corresponding to the outlet of the concrete box 3, a plurality of guide rings 7 are distributed on the side wall of the drilling machine 10 above the first guide wheel 6 at equal intervals along the vertical direction, the injection pipeline 4 sequentially passes through the first guide wheel 6 and the guide rings 7 and extends to the injection seat 9, the injection pipeline 4 is divided on the injection seat 9 to form two branch pipelines 20, each branch pipeline 20 is hung on the guide ring 7 at the bottom of the injection seat 9, the guide rings 7 form a fixed path for moving the injection pipeline 4, particularly, the injection pipeline 4 on the injection seat 9 is guided into the guide ring 7 on the side wall of the drilling machine 10 in a vertical state, and the injection pipeline 4 moves along with the linear lifting of the fixed base 8, so that the extrusion phenomenon that the injection pipeline 4 is bent and is extruded can be effectively avoided.
Further, a wire collection box 5 is further arranged on the workbench 1 and located between the concrete box 3 and the drilling machine 10, as shown in fig. 5, the wire collection box 5 is casing-shaped, two second guide wheels 22 are symmetrically arranged on the top of the wire collection box 5 along the horizontal direction, the two second guide wheels 22 can freely rotate along the axis of the wire collection box, a guide weight wheel 23 is arranged between the two second guide wheels 22 in the wire collection box 5, a central shaft of the guide weight wheel 23 is slidably nested in a sliding groove 24 formed in the inner wall of the wire collection box 5, the injection pipeline 4 extends into the wire collection box 5 and sequentially coats the left second guide wheel 22, the guide weight wheel 23 and the right second guide wheel 22 and then penetrates to the outside of the wire collection box 5, when the hydraulic system drives the piston rod 13 to extend out of the driving fixing base 8 to rise upwards, the injection pipeline 4 drives the guide weight wheel 23 to slide upwards along the sliding groove 24, and when the fixing base 8 moves downwards and slides to the initial position, the guide wheel 23 slides downwards along the sliding groove 24 under the action of the self gravity and contracts the injection pipeline 4 in the wire collection box 5, so as to achieve the purpose of injecting and collecting the pipeline 4.
The invention provides a concrete injection supporting device for reinforcing a shield tunnel, which has the working principle that: after the support equipment is moved to a destination by using the crawler traveling mechanism 2, a hydraulic system and a hydraulic motor 11 of the support equipment are started, a drill rod is filled into the hydraulic motor 11 from a first gap 19 of a support top plate 17, the hydraulic motor 11 drives the drill rod to rotate at a high speed and feed forwards along a linear guide rail 12 to complete drilling operation, an anchor rod is filled into the hydraulic motor 11, the drilling speed is reduced, the actions are repeated, the anchor rod is anchored by using resin, then an attachment net 14 is placed in an injection seat 9, a concrete high-pressure injection pump in a concrete box 3 is started, the concrete high-pressure injection pump pumps the concrete in the concrete box 3 into the injection seat 9, an injection head 16 is firstly injected on the attachment net 14 for ten minutes, after the concrete high-pressure injection is completely solidified, the concrete high-pressure injection is started again, and the injection head 16 is fully solidified and formed in the injection seat 9.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (5)
1. The concrete spraying support equipment for reinforcing the shield tunnel is characterized by comprising a workbench (1) fixed on a crawler travelling mechanism (2), wherein a drilling machine (10) is installed on the workbench (1); the drilling machine (10) comprises a hydraulic motor (11) and a supporting top plate (17), the base end of the hydraulic motor (11) is sleeved on two linear guide rails on the drilling machine (10) in a sliding mode, the output end of the hydraulic motor (11) is arranged vertically upwards, two piston rods (13) are connected to the inside of the drilling machine (10) in a driving mode, and the piston rods (13) extend upwards to the outside of the drilling machine and are fixedly connected with the supporting top plate (17); a spraying seat (9) for bearing concrete is fixed on the supporting top plate (17), a drill rod limiting hole (18) corresponding to the output end of the hydraulic motor (11) is formed in the center of the supporting top plate (17), and a through hole (21) for a drill rod to pass through is formed in the position, corresponding to the drill rod limiting hole (18), of the spraying seat (9); the concrete box is characterized by further comprising a concrete box (3) arranged on the workbench (1), the output end of the concrete box (3) is communicated with a spraying pipeline (4), the tail end of the spraying pipeline (4) is connected with a spray head (16), and the spray head (16) extends to the opening of the spraying seat (9);
the spraying seat (9) is formed by splicing a fixed bottom plate (8) fixed at the top of a supporting top plate (17) and three side plates, a first notch (19) communicated with the drill rod limiting hole (18) is formed in one side, corresponding to the opening of the spraying seat (9), of the supporting top plate (17), and a strip-shaped notch corresponding to the first notch (19) is formed in the fixed bottom plate (8);
three side plates on the injection seat (9) are respectively connected with a support sleeve (15) arranged on the fixed bottom plate (8) in an elastic support manner, and the three side plates of the injection seat (9) can elastically float up and down along the fixed bottom plate (8) through the support sleeve (15).
2. The concrete jet support equipment for reinforcing the shield tunnel according to claim 1, wherein the support sleeve (15) is arranged in the vertical direction, a guide column (28) is arranged in the support sleeve, a sliding sleeve (29) is sleeved on the periphery of the guide column (28), and a connecting pipe (30) arranged on the sliding sleeve (29) penetrates through the second gap (25) of the support sleeve (15) and is fixedly connected with the corresponding side plate; a first spring (26) is connected between the top of the sliding sleeve (29) and the top of the supporting sleeve (15), and a second spring (27) is connected between the bottom of the sliding sleeve (29) and the bottom of the supporting sleeve (15).
3. The concrete spraying and supporting equipment for reinforcing the shield tunnel according to claim 1, wherein a first guide wheel (6) is installed on the side wall of the drilling machine (10) corresponding to the outlet of the concrete box (3), a plurality of guide rings (7) are distributed on the side wall of the drilling machine (10) above the first guide wheel (6) at equal intervals along the vertical direction, the spraying pipeline (4) sequentially penetrates through the first guide wheel (6) and the plurality of guide rings (7) and extends to the spraying seat (9), the spraying pipeline (4) is divided on the spraying seat (9) to form two branch pipelines (20), and each branch pipeline (20) is hung on the guide ring (7) at the bottom of the spraying seat (9).
4. The concrete spraying and supporting equipment for reinforcing the shield tunnel according to claim 3, wherein a line concentration box (5) is further arranged on the workbench (1) and located between the concrete box (3) and the drilling machine (10), the line concentration box (5) is in a shell shape, two second guide wheels (22) are symmetrically arranged at the top of the line concentration box (5) along the horizontal direction, the two second guide wheels (22) can freely rotate along the axis of the line concentration box, a guide weight wheel (23) is arranged between the two second guide wheels (22) in the line concentration box (5), a central shaft of the guide weight wheel (23) is slidably nested into a sliding groove (24) formed in the inner wall of the line concentration box (5), and the spraying pipeline (4) extends into the line concentration box (5) and sequentially wraps the second guide wheel (22) on the left side, the guide weight wheel (23) and the second guide wheel (22) on the right side and then penetrates through the outside the line concentration box (5).
5. The concrete injection supporting equipment for reinforcing the shield tunnel according to claim 1, wherein a concrete high-pressure injection pump is further installed inside the concrete box (3), the pressure of the concrete high-pressure injection pump is 20-38Mp, the injection pipeline (4) adopts a flexible guniting pipe, and the guniting pipe is composed of an inner rubber layer, a steel wire reinforcing layer and a corrosion-resistant outer rubber layer, wherein the inner rubber layer, the steel wire reinforcing layer and the corrosion-resistant outer rubber layer are prepared from synthetic rubber and nano materials.
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| CN202011370805.7A CN112502621B (en) | 2020-11-30 | 2020-11-30 | Concrete injection supporting equipment for reinforcing shield tunnel |
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| CN202011370805.7A CN112502621B (en) | 2020-11-30 | 2020-11-30 | Concrete injection supporting equipment for reinforcing shield tunnel |
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| CN112502621B true CN112502621B (en) | 2022-12-09 |
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| CN109098741B (en) * | 2018-07-13 | 2021-03-30 | 中国煤炭科工集团太原研究院有限公司 | Automatic piece net lapping device of intelligent anchor rod drilling machine |
| CN108756968B (en) * | 2018-07-15 | 2023-05-05 | 西安科技大学 | Coal mine drilling and anchoring robot and supporting method |
| CN210370679U (en) * | 2019-06-20 | 2020-04-21 | 济宁学院 | Concrete jet anchoring device for roadway support |
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Effective date of registration: 20221110 Address after: 310000 No. 22 Chaowang Road, Hangzhou, Zhejiang Province Applicant after: POWERCHINA HUADONG ENGINEERING Corp.,Ltd. Applicant after: HANGZHOU METRO GROUP CO.,LTD. Applicant after: ZHEJIANG SCI-TECH University Address before: 311100 201 Gaojiao Road, Yuhang District, Hangzhou City, Zhejiang Province Applicant before: Zhang Qiongfang |
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