CN109538250B - Device and method for quick construction of tunnel primary support with mould sprayed concrete - Google Patents
Device and method for quick construction of tunnel primary support with mould sprayed concrete Download PDFInfo
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- CN109538250B CN109538250B CN201910082530.8A CN201910082530A CN109538250B CN 109538250 B CN109538250 B CN 109538250B CN 201910082530 A CN201910082530 A CN 201910082530A CN 109538250 B CN109538250 B CN 109538250B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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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- Lining And Supports For Tunnels (AREA)
Abstract
The invention belongs to the technical field of tunnel construction, and relates to a device and a method for quick construction of primary support with mould injection concrete of a tunnel, wherein the device comprises a movable primary support simple trolley, a steel guide rail, a circumferential driving device, a steel template system, an injection system and a pipeline control system; the steel guide rail is arranged on the movable primary support simple trolley; the steel guide rail is integrally arched; the steel template system and the injection system are sequentially arranged on the steel guide rail from bottom to top; the annular driving device is arranged on the movable primary support simple trolley and is respectively connected with the steel template system and the injection system; the annular driving device drives the steel template system and the injection system to freely move on the steel guide rail respectively; the pipeline control system is arranged on the movable primary support simple trolley and is connected with the annular driving device. The invention provides a device and a method for quick construction of tunnel primary support band mould shotcrete, which have high construction efficiency and low labor intensity and can avoid waste of rebound materials.
Description
Technical Field
The invention belongs to the technical field of tunnel construction, relates to a construction device and a construction method, and particularly relates to a device and a method for quick construction of primary support band mould shotcrete of a tunnel.
Background
In the process of pouring tunnel primary support, an arch frame is required to be erected for traditional primary support, and a template is assembled for constructing the concrete by molding, so that the construction process has low efficiency and large labor cost investment. The main construction mode at the present stage is shotcrete support, but the resilience volume of spraying is difficult to control, and the recycle work load of resilience thing is big. Influencing the construction environment and construction cost of the next stage.
In order to solve the problems, the prior art provides several solutions, such as Gang, and the like, a movable pouring template (publication number is CN 108194106A) for a tunnel anchor spray supporting concrete trolley is invented, and the anchor spray supporting is sequentially carried out through a sliding mould trolley, so that the waste caused by concrete rebound is avoided; chen Jianmin and the like invent a tunnel primary lining template trolley (publication number is CN 104790977A), when concrete is pumped, a template mechanism forms a rigid arch at a lining position, and the rigid arch is supported on a portal assembly; when the pumped concrete is during curing, the pumped concrete is supported on the rigid arch and the rigid arch is separated from the mast assembly.
The ideas of the existing solutions are all single factor improvements, i.e. improvements are made by considering only one factor, and less research is done in this respect. Therefore, the device for quick construction of the primary support belt die shotcrete of the tunnel is developed to reduce the waste of rebound materials and adopt the shotcrete for quick construction, and becomes an important improvement requirement of the primary support device of the tunnel.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a device and a method for quick construction of tunnel primary support band mould shotcrete, which have high construction efficiency and low labor intensity and can avoid waste of rebound materials.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the device for the rapid construction of the primary support strip die sprayed concrete of the tunnel comprises a movable primary support simple trolley, a steel guide rail, a circumferential driving device, a steel template system, a spraying system and a pipeline control system; the steel guide rail is arranged on the movable primary support simple trolley; the steel guide rail is integrally arched; the steel template system and the injection system are sequentially arranged on the steel guide rail from bottom to top; the annular driving device is arranged on the movable primary support simple trolley and is respectively connected with the steel template system and the injection system; the annular driving device drives the steel template system and the injection system to freely move on the steel guide rail respectively; the pipeline control system is arranged on the movable primary support simple trolley and is connected with the annular driving device.
The steel guide rail comprises an outer side channel steel, an inner side channel steel, a vault fixed steel plate and a vault fixed steel plate; the structure and the shape of the outer channel steel and the inner channel steel are identical and are all arched; the vault fixing steel plate is arranged at a vault position of an arch structure formed by the outer side channel steel and the inner side channel steel; the arch bottom fixing steel plate is arranged at the arch bottom position of an arch structure formed by the outer side channel steel and the inner side channel steel; a movable working area is formed between the outer side channel steel and the inner side channel steel; the steel template system and the injection system are sequentially arranged in the movable working area from bottom to top and freely move in the movable working area.
The steel template system comprises a steel template equipment sliding base, a steel template telescopic bracket and a steel template; the steel template is connected with a sliding base of steel template equipment through a steel template telescopic bracket; the steel template equipment sliding base is arranged in a movable working area formed by the outer side channel steel and the inner side channel steel; the pipeline control system drives the steel template equipment sliding base to freely move in the moving working area through the annular driving device.
The steel template equipment sliding base comprises a steel template sliding base wheel shaft, a steel template sliding base wheel and a steel template equipment sliding base cross brace; the steel template sliding base and wheels of the steel template sliding base are respectively sleeved on the wheel shafts of the steel template sliding base; the steel template is connected with the steel template sliding base through a steel template telescopic bracket; the steel template sliding base wheel shaft is arranged in a moving working area formed by the outer side channel steel and the inner side channel steel and freely moves in the moving working area through the steel template sliding base wheels; the number of the steel template sliding base wheel shafts is two; the steel template equipment sliding base cross brace is arranged between the two steel template sliding base wheel shafts and is respectively connected with the steel template sliding base wheel shafts.
The steel template telescopic bracket comprises a first telescopic rod and a first hinged support; one end of the first telescopic rod is connected with the steel template through a first hinged support; the other end of the first telescopic rod is connected with the steel template sliding base through a first hinged support.
The spraying system comprises a spraying equipment sliding base, a telescopic bracket module, a spray gun, a sprayed concrete machine and a concrete conveying pipeline; the spray gun is connected with the spraying equipment sliding base through the telescopic bracket module; the nozzle of the spray gun faces to the supporting part of the steel template system; the spraying equipment sliding base is arranged in a movable working area formed by the outer side channel steel and the inner side channel steel; the pipeline control system drives the sliding base of the spraying equipment to freely move in the moving working area through the annular driving device; the shotcrete machine is arranged on a movable primary support simple trolley; the shotcrete machine is communicated with the spray gun through a concrete conveying pipeline.
The injection equipment sliding base comprises an injection sliding base wheel shaft, an injection sliding base, an injection equipment sliding base wheel and an injection equipment sliding base cross rod; the wheel of the injection sliding base and the wheel of the injection equipment sliding base are respectively sleeved on the wheel shaft of the injection sliding base; the spray gun is connected with the spray sliding base through the telescopic bracket module; the injection sliding base wheel shaft is arranged in a moving working area formed by the outer side channel steel and the inner side channel steel and can freely move in the moving working area through injection equipment sliding base wheels; the number of the spraying sliding base wheel shafts is two; the spraying equipment sliding base cross brace is arranged between the two spraying sliding base wheel shafts and is respectively connected with the spraying sliding base wheel shafts.
The telescopic bracket module comprises a second telescopic rod and a second hinged support; one end of the second telescopic rod is connected with the injection sliding base through a second hinged support; the other end of the second telescopic rod is connected with the spray gun through a second hinged support.
The pipeline control system comprises an infrared identification sensor, a strong and weak electric cable and a programmable logic controller; the infrared identification sensor is connected with the programmable logic controller; the annular driving device comprises a motor winch, a guide wheel and an annular driving rope; the motor winch is connected with the circumferential driving rope through a guide wheel; the annular driving rope is respectively connected with the steel template system and the injection system and drives the steel template system and the injection system to freely move on the steel guide rail; the programmable logic controller is connected with the motor winch through a strong and weak electric cable.
The construction method based on the device for rapidly constructing the primary support band mould sprayed concrete of the tunnel is characterized by comprising the following steps of: the construction method comprises the following steps:
1) And (3) equipment installation and fixation: pushing a movable primary support simple trolley to an initial rock surface contour line formed by the excavation of a sprayed surface, locking travelling wheels of the movable primary support simple trolley, placing a steel guide rail on the movable primary support simple trolley, binding and fixing a track vault and a arch part with the movable primary support simple trolley, then placing a steel template system and a spraying system on the steel guide rail, inserting a steel template sliding base wheel shaft and a spraying sliding base wheel shaft, installing steel template sliding base wheels and spraying equipment sliding base wheels, installing steel template equipment sliding base cross-supporting rods and spraying equipment sliding base cross-supporting rods and connecting an annular transmission rope, enabling the steel template system and the spraying system to be fixed on the steel guide rail, and enabling a spray gun to connect a concrete spraying machine through a concrete conveying pipeline to wait for the movable primary support simple trolley to push a supporting template for spraying;
2) And (3) starting ring to spray towards the support die: after the device is electrified, the strong and weak electric cables transmit electric energy and control signals, a steel template system and an injection system are started, a programmable logic controller is instructed to start a motor winch, a ring-direction driving rope is driven by a guide wheel, the steel template equipment sliding base and the injection equipment sliding base are driven to slowly move at a uniform speed, and the sprayed surface is uniformly injected;
3) The trolley is continuously propelled: after the injection of one annular section is completed, the movable primary support simple trolley is continuously pushed, the infrared identification sensor records the pushing distance and transmits the pushing distance to the programmable logic controller, after the pushing of the preset distance, the programmable logic controller sends a prompt, the pushing of the movable primary support simple trolley is stopped at the moment, the formwork injection of the next annular section is carried out, and the like, the sections of each ring of the telescopic support of the steel formwork are sequentially pushed until the movable primary support simple trolley is pushed to the whole section needing primary support.
The invention adopts the simple trolley for primary support with mould to spray concrete to replace the existing concrete sprayer, and has the following advantages compared with the prior art:
1) The steel guide rail and the formwork injection device are integrated, and the steel guide rail is placed on the simple trolley, so that the steel guide rail can move and assist the formwork injection equipment to perform annular injection, the construction efficiency is improved, and the labor intensity is reduced.
2) The designed formwork injection system adopts a circumferential injection mode to replace the existing concrete injection manipulator device, can gradually perform circumferential injection on each annular formwork, overcomes the defect that rebound matters are not easy to recycle when concrete is injected in the prior art, and reduces the waste of the rebound matters.
3) The device designed can be applied to different tunnel sections, and the telescopic rods of the steel template system and the injection system are used for adapting to the corresponding inner contours of the tunnels, so that the recycling rate of the device is improved.
Drawings
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the accompanying drawings are only some, but not all embodiments of the invention. Based on the embodiments of the present invention, all embodiments obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present invention.
FIG. 1 is a schematic diagram of the overall structure of the device for rapid construction of a tunnel primary support strip mold shotcrete;
FIG. 2 is a diagram of a slide mount configuration and track connection employed in the present invention;
FIG. 3 is a diagram of the connection of a steel form to a telescoping support used in the present invention; a is a schematic diagram of the front view structure of a steel template system; b is a schematic top view of the steel form system; c is a schematic cross-sectional structure of the steel form system;
FIG. 4 is a view of the attachment of a spray gun to a telescoping boom as used in the present invention; a is a formal structural schematic diagram of the injection system, b is a side-view structural schematic diagram of the injection system; c is a schematic top view of the injection system;
FIG. 5 is a two-dimensional side view of a steel template and lance apparatus employed in the present invention;
FIG. 6 is a schematic diagram of a two-dimensional cross-sectional structure of a steel template and lance apparatus employed in the present invention;
in the figure:
1-a steel guide rail; 11-outboard channel steel; 12-inner channel steel; 13-vault securing steel sheet; 14-arch bottom fixing steel plates; 2-ring drive means; 21-a motor winch; 22-guide wheels; 23-an annular driving rope; 3-a steel template system; 31-a steel template device sliding base; 311-steel template sliding base wheel shaft; 312-steel template sliding base; 313-steel form sliding base wheels; 314-steel template equipment sliding base cross bars; 32-a steel template telescopic bracket; 321-a first telescopic rod; 322-first hinge support; 33-steel templates; a 4-jet system; 41-spray slide mount; 411-spray slide base axle; 412-spray slide mount; 413-a spray device skid wheel; 414-spray device sliding base spreader bar; 42-a telescoping rack module; 421-a second telescopic link; 422-a second hinged support; 43-spray gun; 44-shotcrete machine; 45-concrete conveying pipelines; 5-pipeline control system; 51-an infrared identification sensor; 52-strong and weak current cables; 53-a programmable logic controller; 6-primary support trolley and tunnel structure; 61-primary support simple trolley; 611-trolley wheels; 62-sprayed face.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the drawings and specific examples, but not by way of limitation. In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "left", "right", "upper", "lower", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not meant to designate or imply that the elements to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
Referring to fig. 1 to 6, an apparatus for rapid construction of a preliminary supporting strip mold injection concrete for a tunnel includes: the steel guide rail 1 is used for fixing a steel template system and a jet system and assisting the two systems to run in a circumferential direction; the annular driving device 2 is used for driving the steel template and the injection equipment to travel along the annular direction of the contour track in the tunnel; the steel template system 3 is used for automatically erecting a die of the steel template and forming a sprayed space with a sprayed surface; a spraying system 4 for the supply and delivery of concrete and for automatic spraying; and the pipeline control system 5 is used for transmitting the start-up and shut-down control signals of the driving device 2, the steel template system 3 and the injection system 4.
As shown in fig. 1 and 2, the steel rail 1 is composed of an outer channel steel 11 and an inner channel steel 12, and is bent into the shape of the inner contour of a tunnel. The steel guide rail 1 is provided with a left ring and a right ring together, the vault is provided with a vault fixing steel sheet 13, the cleaning area is divided into a left area and a right area, the vault of the two rings of steel guide rail is provided with a vault fixing steel sheet 14, the two rings of steel rails are locked and serve as the starting point of a steel template sliding base, and the stability is maintained; a gap is reserved between the two channel steels and is used for placing a steel template sliding base wheel shaft 311 and a steel template sliding base wheel shaft 411 of the steel template system 3 and the injection system 4, a steel template sliding base 312 is placed on the steel template sliding base wheel shaft 311, an injection sliding base 412 is placed on the injection sliding base wheel shaft 411, the side edges of the outer channel steel and the inner channel steel 12 are used for placing steel template sliding base wheels 313 and injection equipment sliding base wheels 413 of the steel template system 3 and the injection system 4, and the steel template system 3 and the injection system 4 can drive on the steel guide rail 1 under the drive of the annular driving device 2; and a steel template device sliding base transverse strut 314 and a spraying device sliding base transverse strut 414 are arranged between the two steel template sliding base wheel shafts 311 and the spraying sliding base wheel shafts 411 in the steel template system 3 and the spraying system 4 and are used for fixing relative positions and keeping the stability of the device.
As shown in fig. 1, the circumferential driving device 2 is composed of a motor winch 21, a guide wheel 22 and a circumferential driving rope 23 which are arranged on a trolley, and in the working process, the pipeline control system 5 sends out an instruction to control the electric winch 21 to rotate back and forth, and the guide wheel 22 guides the circumferential driving rope 23 to move so as to further drag the steel template system 3 and the injection system 4 to move circumferentially, so that primary support formwork injection is realized.
Referring to fig. 1 and 3 (a is a schematic elevational view of the steel form system, b is a schematic plan view of the steel form system, c is a schematic sectional view of the steel form system), and fig. 5, the steel form system 3 is composed of the following modules: the steel template equipment slides the base 31, scalable support module 32, steel template 33. The steel template equipment sliding base 31 comprises a steel template sliding base wheel shaft 311, steel template sliding base wheels 313 at two sides of the wheel shaft, steel template equipment sliding base transverse supporting rods 314 between the wheel shafts and a steel template sliding base 312, and is used for assisting the steel template system 3 to circumferentially run on the steel guide rail 1; the steel template telescopic bracket 32 consists of a first telescopic rod 321 and a first hinged support 322 and is used for automatically positioning the template;
as shown in fig. 1 and 4 (a is a schematic diagram of a main structure of the injection system, b is a schematic diagram of a side view of the injection system, c is a schematic diagram of a top view of the injection system), fig. 5 and 6, the injection system 4 is composed of the following modules: the spraying device comprises a sliding base 41, a telescopic bracket module 42, a spray gun 43, a spraying concrete machine 44 and a concrete conveying pipeline 45. The spraying device sliding base 41 comprises a spraying sliding base wheel shaft 411, a spraying device sliding base wheel 413, a spraying device sliding base transverse strut 414 between the wheel shafts and a spraying sliding base 412, and is used for assisting the spraying system 4 to circularly run on the steel guide rail 1; the telescopic bracket module 42 consists of a second telescopic rod 421 and a second hinged support 422 for positioning the spray gun; the concrete delivery pipe 45 is used to deliver concrete. After the cement, the aggregate and the water are metered and stirred, the mixture is fed into a shotcrete machine 44, is conveyed to a nozzle through a concrete conveying pipeline 45, is mixed with an accelerator, and is sprayed on a sprayed surface by means of compressed air.
The pipeline control system 5 is composed of an infrared identification sensor 51, a strong current and weak current cable 52 and a programmable logic controller 53. The infrared identification sensor 51 is used for recording the propelling distance, the strong and weak electric cable 52 is used for transmitting electric energy and transmitting signals, and the programmable logic controller 53 is used for receiving and transmitting signals and controlling the rotation of the motor winch 21.
As shown in fig. 1, 2, 3 and 4, the present invention provides a device for quick construction of primary support zone mold shotcrete of a tunnel, and also provides a construction method based on the construction device, which comprises:
1) And (3) equipment installation and fixation: pushing the movable preliminary support simple trolley 61 to an initial rock surface contour line formed by the excavation of a sprayed surface, locking the travelling wheels 611 of the movable preliminary support simple trolley 61, placing the steel guide rail 1 on the movable preliminary support simple trolley 61, binding and fixing a track vault and a bow part with the movable preliminary support simple trolley 61, then placing the steel template system 3 and the spraying system 4 on the steel guide rail 1, inserting the steel template sliding base wheel shaft 311 and the spraying sliding base wheel shaft 411, installing the steel template sliding base wheel 313 and the spraying equipment sliding base wheel 413, installing the steel template equipment sliding base transverse rod 314 and the spraying equipment sliding base transverse rod 414 and connecting the annular transmission ropes 23, fixing the steel template system 3 and the spraying system 4 on the steel guide rail 1, connecting the spraying gun 43 on the spraying concrete machine 44 through the concrete conveying pipeline 45, and waiting for the movable preliminary support simple trolley 61 to push the supporting template to spray;
2) And (3) starting ring to spray towards the support die: after the device is electrified, the strong and weak electric cable 52 transmits electric energy and control signals, the steel template system 3 and the injection system 4 are started, the programmable logic controller 53 is instructed to start the motor winch 21, the guide wheel 22 drives the annular driving rope 23, and the steel template equipment sliding base 31 and the injection equipment sliding base 41 are driven to slowly move at a uniform speed, so that the sprayed surface 62 is uniformly sprayed;
3) The trolley is continuously propelled: after the injection of one annular section is completed, the movable primary support simple trolley 61 is continuously pushed, the infrared identification sensor 51 records the pushing distance and transmits the pushing distance to the programmable logic controller 53, after the pushing for a specified distance, the programmable logic controller 53 sends a prompt, at the moment, the pushing of the movable primary support simple trolley 61 is stopped, the formwork injection of the next annular section is carried out, and the like, the sections of each ring of the telescopic support 32 of the steel formwork are sequentially pushed until the movable primary support simple trolley 61 is pushed to the whole section needing primary support. At this time, the mold-supporting injection system is shut down, and the carriage 61 is pushed out to the open area, waiting for the next injection.
The present invention is not exhaustive and is well known to those skilled in the art.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution and the concept of the present invention, can make equivalent substitutions or modifications within the scope of the present invention.
Claims (7)
1. A device that is used for tunnel preliminary bracing area mould to spray concrete to be under construction fast, its characterized in that: the device for the rapid construction of the tunnel primary support with the mould sprayed concrete comprises a movable primary support simple trolley (61), a steel guide rail (1), a circumferential driving device (2), a steel template system (3), a spraying system (4) and a pipeline control system (5); the steel guide rail (1) is arranged on a movable primary support simple trolley (61); the steel guide rail (1) is integrally arched; the steel template system (3) and the injection system (4) are sequentially arranged on the steel guide rail (1) from bottom to top; the annular driving device (2) is arranged on the movable primary support simple trolley (61) and is respectively connected with the steel template system (3) and the injection system (4); the annular driving device (2) drives the steel template system (3) and the injection system (4) to freely move on the steel guide rail (1) respectively; the pipeline control system (5) is arranged on the movable primary support simple trolley (61) and is connected with the annular driving device (2);
the steel guide rail (1) comprises an outer side channel steel (11), an inner side channel steel (12), a vault fixed steel plate (13) and a vault fixed steel plate (14); the structures and the shapes of the outer side channel steel (11) and the inner side channel steel (12) are identical and are all arched; the vault fixing steel plate (13) is arranged at a vault position of an arch structure formed by the outer side channel steel (11) and the inner side channel steel (12); the arch bottom fixing steel plate (14) is arranged at the arch bottom position of an arch structure formed by the outer side channel steel (11) and the inner side channel steel (12); a movable working area is formed between the outer side channel steel (11) and the inner side channel steel (12); the steel template system (3) and the injection system (4) are sequentially arranged in the movable working area from bottom to top and can freely move in the movable working area;
the steel template system (3) comprises a steel template equipment sliding base (31), a steel template telescopic bracket (32) and a steel template (33); the steel template (33) is connected with a steel template equipment sliding base (31) through a steel template telescopic bracket (32); the steel template equipment sliding base (31) is arranged in a movable working area formed by an outer side channel steel (11) and an inner side channel steel (12); the pipeline control system (5) drives the steel template equipment sliding base (31) to freely move in the moving working area through the annular driving device (2);
the steel template equipment sliding base (31) comprises a steel template sliding base wheel shaft (311), a steel template sliding base (312), a steel template sliding base wheel (313) and a steel template equipment sliding base cross bar (314); the steel template sliding base (312) and the steel template sliding base wheels (313) are respectively sleeved on the steel template sliding base wheel shafts (311); the steel template (33) is connected with the steel template sliding base (312) through the steel template telescopic bracket (32); the steel template sliding base wheel shaft (311) is arranged in a moving working area formed by an outer side channel steel (11) and an inner side channel steel (12) and can freely move in the moving working area through the steel template sliding base wheel (313); the number of the steel template sliding base wheel shafts (311) is two; the steel template equipment sliding base cross brace (314) is arranged between the two steel template sliding base wheel shafts (311) and is respectively connected with the steel template sliding base wheel shafts (311).
2. The device for rapid construction of tunnel preliminary strip mold shotcrete according to claim 1, wherein: the steel template telescopic bracket (32) comprises a first telescopic rod (321) and a first hinged support (322); one end of the first telescopic rod (321) is connected with the steel template (33) through a first hinged support (322); the other end of the first telescopic rod (321) is connected with the steel template sliding base (312) through a first hinged support (322).
3. The device for rapid construction of tunnel preliminary strip mold shotcrete according to claim 1, wherein: the spraying system (4) comprises a spraying equipment sliding base (41), a telescopic bracket module (42), a spray gun (43), a sprayed concrete machine (44) and a concrete conveying pipeline (45); the spray gun (43) is connected with the spraying equipment sliding base (41) through a telescopic bracket module (42); the nozzle of the spray gun (43) faces to the supporting part of the steel template system (3); the spraying equipment sliding base (41) is arranged in a movable working area formed by the outer side channel steel (11) and the inner side channel steel (12); the pipeline control system (5) drives the spraying equipment sliding base (41) to freely move in the moving working area through the annular driving device (2); the shotcrete machine (44) is arranged on a movable primary support simple trolley (61); the shotcrete machine (44) is communicated with the spray gun (43) through a concrete conveying pipeline (45).
4. A device for rapid construction of tunnel preliminary strip mould shotcrete according to claim 3, wherein: the spraying device sliding base (41) comprises a spraying sliding base wheel shaft (411), a spraying sliding base (412), a spraying device sliding base wheel (413) and a spraying device sliding base transverse strut (414); the spraying sliding base (412) and the spraying equipment sliding base wheels (413) are respectively sleeved on the spraying sliding base wheel shafts (411); the spray gun (43) is connected with the spray sliding base (412) through the telescopic bracket module (42); the spraying sliding base wheel shaft (411) is arranged in a moving working area formed by an outer side channel steel (11) and an inner side channel steel (12) and can freely move in the moving working area through a spraying equipment sliding base wheel (413); the number of the spraying sliding base wheel shafts (411) is two; the spraying equipment sliding base cross brace (414) is arranged between the two spraying sliding base wheel shafts (411) and is respectively connected with the spraying sliding base wheel shafts (411).
5. The device for rapid construction of tunnel preliminary strip mold shotcrete according to claim 4, wherein: the telescopic bracket module (42) comprises a second telescopic rod (421) and a second hinged support (422); one end of the second telescopic rod (421) is connected with the spraying sliding base (412) through a second hinged support (422); the other end of the second telescopic rod (421) is connected with the spray gun (43) through a second hinged support (422).
6. The apparatus for rapid construction of tunnel preliminary strip mold shotcrete according to any one of claims 1 to 5, wherein: the pipeline control system (5) comprises an infrared identification sensor (51), a strong and weak electric cable (52) and a programmable logic controller (53); the infrared identification sensor (51) is connected with the programmable logic controller (53); the annular driving device (2) comprises a motor winch (21), a guide wheel (22) and an annular transmission rope (23); the motor winch (21) is connected with the circumferential transmission rope (23) through a guide wheel (22); the annular driving rope (23) is respectively connected with the steel template system (3) and the injection system (4) and drives the steel template system (3) and the injection system (4) to freely move on the steel guide rail (1); the programmable logic controller (53) is connected with the motor winch (21) through a strong and weak electric cable (52).
7. A construction method based on the device for rapid construction of tunnel primary support strip mould shotcrete according to claim 6, characterized in that: the construction method comprises the following steps:
1) And (3) equipment installation and fixation: pushing a movable preliminary support simple trolley (61) to an initial rock surface contour line (62) formed by the excavation of a sprayed surface, locking a travelling wheel (611) of the movable preliminary support simple trolley (61), placing a steel guide rail (1) on the movable preliminary support simple trolley (61), binding and fixing a track vault and a arch part with the movable preliminary support simple trolley (61), then placing a steel formwork system (3) and a spraying system (4) on the steel guide rail (1), inserting a steel formwork sliding base wheel shaft (311) and a spraying sliding base wheel shaft (411), installing a steel formwork sliding base wheel (313) and a spraying equipment sliding base wheel (413), installing a steel formwork equipment sliding base transverse rod (314) and a spraying equipment sliding base transverse rod (414) and connecting an annular transmission rope (23), fixing the steel formwork system (3) and the spraying system (4) on the steel guide rail (1), and then spraying a spraying gun (43) through a concrete conveying pipeline (45) to wait for the movable preliminary support trolley (61) to spray concrete;
2) And (3) starting ring to spray towards the support die: after the device is electrified, an electric energy and control signals are transmitted by a strong and weak electric cable (52), a steel template system (3) and an injection system (4) are started, a programmable logic controller (53) is instructed to start a motor winch (21), a ring is driven to a driving rope (23) through a guide wheel (22), and the steel template equipment sliding base (31) and the injection equipment sliding base (41) are driven to slowly move at a uniform speed so as to uniformly inject a sprayed surface;
3) The trolley is continuously propelled: after the injection of one annular section is completed, the movable primary support simple trolley (61) is continuously pushed, the infrared identification sensor (51) records the pushing distance and transmits the pushing distance to the programmable logic controller (53), after the preset distance is pushed, the programmable logic controller (53) sends out a prompt, at the moment, the pushing of the movable primary support simple trolley (61) is stopped, the injection of the next annular section is carried out, and the like, the section of each ring of the telescopic support (32) of the steel template is sequentially pushed until the movable primary support simple trolley (61) is pushed to the whole section needing primary support.
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| CN110056375B (en) * | 2019-05-08 | 2020-09-25 | 长沙泽和智能科技有限公司 | Arch frame type tunnel wet spraying machine |
| CN110486052A (en) * | 2019-09-04 | 2019-11-22 | 中交天和机械设备制造有限公司 | A kind of press injecting type concrete support method and the supporting mechanism for implementing it |
| CN111520165B (en) * | 2020-05-09 | 2020-12-01 | 广东水电二局股份有限公司 | Tunnel construction is with spraying concrete device with reduce rebound rate |
| CN113756829A (en) * | 2021-09-23 | 2021-12-07 | 中国铁建重工集团股份有限公司 | Open-type TBM and spraying and mixing system thereof |
| CN114320364A (en) * | 2021-12-21 | 2022-04-12 | 洛阳中铁强力机械有限公司 | Tunnel spouts anchor auxiliary trolley |
| CN114575889A (en) * | 2022-03-16 | 2022-06-03 | 中国水利电力对外有限公司 | Slip form construction system and method for TBM tunnel concrete injection |
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