CN114215547B - Grouting lifting prevention device under tunnel bottom plate - Google Patents
Grouting lifting prevention device under tunnel bottom plate Download PDFInfo
- Publication number
- CN114215547B CN114215547B CN202111570806.0A CN202111570806A CN114215547B CN 114215547 B CN114215547 B CN 114215547B CN 202111570806 A CN202111570806 A CN 202111570806A CN 114215547 B CN114215547 B CN 114215547B
- Authority
- CN
- China
- Prior art keywords
- grouting
- plate
- rod
- shell type
- guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/24—Guiding or centralising devices for drilling rods or pipes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
Abstract
The invention provides a grouting lifting prevention device under a tunnel bottom plate, which relates to the technical field of building engineering processing and comprises a rail car, a drilling device, a hole cleaning device and a grouting device, wherein the drilling device, the hole cleaning device and the grouting device are sequentially arranged on the rail car at equal intervals from left to right: a. the existing grouting lifting prevention device under the tunnel bottom plate cannot control the casting depth, so that the grouting height is too high or too low. b. The stability of the existing grouting lifting prevention device under the tunnel bottom plate is poor, and the grouting required anchor rod is easy to deviate or incline in the grouting process.
Description
Technical Field
The invention relates to the technical field of constructional engineering, and particularly provides a grouting lifting prevention device under a tunnel bottom plate.
Background
The tunnel is an engineering building embedded in the stratum, is a form of utilizing underground space by human beings, so the basic composition of the tunnel is very important for the construction of the tunnel, and mainly comprises a surrounding rock layer, a tunnel inverted arch structure layer, a leveling layer, a track board, auxiliary equipment and the like, wherein the tunnel inverted arch structure layer is paved after a tunnel body is formed in the surrounding rock layer, the tunnel is formed in the stratum through the support of the tunnel inverted arch structure layer, then the leveling layer, the track board and the auxiliary equipment are respectively paved in the tunnel, the leveling layer and the track board are paved to form a tunnel bottom board, in the process of paving the tunnel inverted arch structure layer, the excavated edge of the surrounding rock layer is in a loose state, so a plurality of gaps exist between the surrounding rock layer and the tunnel inverted arch structure layer after a period of time, and the vibration generated by a tunnel through vehicle can seriously influence the stability of the whole tunnel after the tunnel construction is completed, the stability of the tunnel inverted arch structure layer is easily caused to be sunk, and the stability of the tunnel is required to be enhanced, and the stability of the surrounding rock layer is mainly improved nowadays through grouting operation on the gaps between the tunnel inverted arch structure layer and the surrounding rock layer.
The existing grouting under the tunnel bottom plate is mainly characterized in that a lifting device is fixed on a leveling layer and a track plate of a tunnel through manpower, then the lifting device is lifted to a certain height, a large amount of slurry is injected below the tunnel bottom plate, the slurry is deep into a surrounding rock layer, the tunnel bottom plate is placed at an initial position after solidification, the former grouting under the tunnel bottom plate lifting prevention device is very popular in use, but the following problems exist in actual operation: (1) The existing grouting lifting prevention device under the tunnel bottom plate cannot control the casting depth of slurry, so that the grouting height is too high or too low.
(2) The stability of the existing grouting lifting prevention device under the tunnel bottom plate is poor, and the grouting required anchor rod is easy to deviate or incline in the grouting process.
Disclosure of Invention
In order to solve the technical problems, the invention provides a grouting lifting prevention device under a tunnel bottom plate, which comprises a track car, a drilling device, a hole cleaning device and a grouting device, wherein the drilling device, the hole cleaning device and the grouting device are sequentially arranged on the track car at equal intervals from left to right.
The upper end equidistant fixed mounting of railcar has the mount, and the upper end symmetry fixedly connected with telescopic cylinder of mount, telescopic cylinder's output slip runs through the mount setting.
The drilling device comprises a first placing plate, chain wheels, chains, a driving motor, a drilling rod and a drilling shaft, wherein the first placing plate is fixedly arranged at the output end of a telescopic cylinder on the left side of the upper end of the rail car, three chain wheels are arranged at equal intervals in a rotating mode at the upper end of the first placing plate, the three chain wheels are connected through the arranged chains, the three chain wheels are meshed with the chains, the driving motor is connected with the upper end of the chain wheel located in the middle of the first placing plate and fixedly arranged on the first placing plate through a motor base, the lower end of the chain wheel penetrates through the first placing plate and is provided with the drilling rod through bearing rotation, and the drilling shaft is arranged at the lower end of the drilling rod in a threaded connection mode.
The hole cleaning device comprises a second placing plate, a hole cleaning column and a hole cleaning collecting assembly, wherein the second placing plate is fixedly arranged at the output end of the telescopic cylinder at the middle position of the upper end face of the railway vehicle, the hole cleaning column is fixedly arranged at the position, corresponding to the drilling shaft, of the lower end of the second placing plate at equal intervals, a round hole is formed in the middle position of the hole cleaning column in a penetrating mode, the diameter of the hole cleaning column is smaller than that of the drilling shaft, and the hole cleaning collecting assembly is arranged on the inner side of the hole cleaning column.
The grouting device comprises an expansion shell type grouting anchor rod, an anchor rod fixing plate, wedge drill bits, wedge blocks, diamond blocks, sliding rods, limiting plates, locking nuts, clamping components, guide components and fixing components, wherein the anchor rod fixing plate is fixedly arranged at the output end of a telescopic cylinder on the right side of the upper end face of a railway car, a fixing groove is formed in the middle of the anchor rod fixing plate in a penetrating mode, the expansion shell type grouting anchor rod is movably arranged in the fixing groove, the expansion shell type grouting anchor rod is of a hollow structure, grooves are symmetrically formed in the lower ends of the expansion shell type grouting anchor rod, the wedge drill bits are hinged to the grooves, the wedge blocks are fixedly arranged on the inner sides of the wedge drill bits, the diamond blocks are abutted to the diamond blocks, one side, close to the expansion shell type grouting anchor rod, of the sliding rods is fixedly connected with the sliding rods, the sliding rods are arranged inside the expansion grouting anchor rod in a sliding mode through supports, the limiting plates are sleeved on the upper ends of the expansion shell type grouting anchor rod, the rear ends of the limiting plates abut against the locking nuts, the locking nuts are connected with the expansion shell type grouting anchor rod in a threaded mode, the clamping components are arranged on the fixing plates, the lower ends of the anchor rod are provided with the guide components, and the guide components are arranged on the expansion shell type grouting anchor rod.
Preferably, clear hole collection subassembly includes collecting vat, collecting plate, elasticity guide cloth, collecting block, the bracing piece, the movable rod, splayed horizontal plate and electric putter, the collecting vat has been seted up to clear hole post equidistant along circumference direction, the lower extreme hinge of collecting vat is provided with the collecting plate, link to each other through elasticity guide cloth between the collecting plate, and equidistant collecting block that is provided with on the elasticity guide cloth, the inboard hinge of collecting plate is provided with the bracing piece, the one end that the collecting plate was kept away from to the bracing piece sets up with the movable rod is articulated, the movable rod passes through the inside of the round hole of support slip setting at clear hole post, the upper end slip of movable rod runs through No. two placing plates and splayed board fixed connection, the splayed horizontal plate is located No. two placing plates's top, the side of splayed horizontal plate is connected with electric putter, electric putter fixed mounting is at No. two placing plates's side.
Preferably, the fixed subassembly includes slip casting hole, fixed column and triangle-shaped piece, and the slip casting hole has been seted up along circumference direction equidistant on the shell-expanding type slip casting stock, and slip casting hole internal sliding is provided with the fixed column, and equidistant fixed mounting has the triangle-shaped piece on the slide bar that shell-expanding type slip casting stock inside slides and sets up, and the inclined plane structure of triangle-shaped piece supports to lean on to set up on the fixed column.
Preferably, the clamping assembly comprises an annular plate, a clamping threaded rod and a clamping plate, the annular plate is fixed in a fixing groove on the anchor rod fixing plate, the clamping threaded rod is connected to the annular plate in a symmetrical threaded mode, and the clamping plate is rotationally arranged at the central position of the clamping threaded rod, close to the annular plate.
Preferably, the guide assembly comprises a guide spring rod, a guide ring, a telescopic spring rod, a guide block, a buffer spring and a buffer block, wherein the guide spring rod is symmetrically arranged at the lower end of the anchor rod fixing plate, the lower end of the guide spring rod is fixedly connected with the guide ring, the lower end of the guide ring is provided with grooves at equal intervals, the telescopic spring rod is fixedly arranged in each groove, one end of the telescopic spring rod, which is close to the center point of the guide ring, is fixedly connected with the guide block, the guide block is slidably arranged in each groove, one end, which is far away from the telescopic spring, of the guide block is provided with a connecting groove, the buffer spring is fixedly arranged in each connecting groove, and one end, which is far away from the guide block, of the buffer spring is fixedly connected with the buffer block.
Preferably, the grouting machine is fixedly arranged at the upper end of the rail car, one side of the grouting machine is provided with a guide pipe, and the grouting machine is used for conveying slurry to the rock stratum at the lower end of the tunnel bottom plate through the guide pipe and the expansion shell type grouting anchor rod.
Preferably, the outside of the shell-expanding grouting anchor rod is of a threaded structure, the diameter of the shell-expanding grouting anchor rod is smaller than that of the drilling shaft, and the shell-expanding grouting anchor rod is effectively ensured to be inserted into the drilling hole.
Preferably, the inner wall of the lower end of the clear hole column is provided with a thread structure, the lower end of the clear hole column is connected with a broken cone in a threaded connection mode, the broken cone can effectively ensure that the clear hole column is inserted into a drilled hole, and meanwhile, the broken cone can be combined with the clear hole column in a rotating mode.
The invention has the following beneficial effects: 1. the invention provides a grouting lifting prevention device under a tunnel bottom plate, which is mainly characterized in that a fixed column and a wedge-shaped drill bit are inserted into the inner wall of a drill hole, the stability of an expansion shell type grouting anchor rod is improved in a supporting mode, and the grouting process of the expansion shell type grouting anchor rod is ensured not to deviate.
2. The invention provides a grouting lifting-preventing device under a tunnel bottom plate, which has the main functions of cleaning and collecting residual soil produced by a drilling hole, and trimming the shape of the drilling hole, so that the normal inside of the drilling hole is ensured, and an expansion shell type grouting anchor rod is conveniently vertically inserted into the inside of the drilling hole.
3. The invention provides a grouting lifting prevention device under a tunnel bottom plate, which is characterized in that a drilling device is used for drilling a plurality of holes, the effect of each hole is different, one drilling hole is mainly used for discharging gas, the phenomenon that a large amount of bubbles are generated in the middle of slurry due to the fact that the gas generated in the process of grouting the slurry cannot be discharged is avoided, and then the solidification hardness of the slurry is influenced, wherein the other drilling hole is mainly used for observing the grouting depth and preventing the rising of a leveling layer and a track plate of a tunnel.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the drilling device, the hole cleaning device and the grouting device of the invention.
Fig. 3 is a schematic structural view of the drilling device of the present invention.
Fig. 4 is a schematic structural view of the hole cleaning device of the present invention.
Fig. 5 is a partial enlarged view of the present invention at a in fig. 4.
Fig. 6 is a schematic structural view of the grouting device of the present invention.
Fig. 7 is a partial enlarged view of the present invention at B in fig. 6.
Fig. 8 is a partial enlarged view of the present invention at C in fig. 6.
Fig. 9 is a cross-sectional view of the hole cleaning device of the present invention.
Fig. 10 is a partial enlarged view of the invention at D in fig. 9.
In the figure: 1. a rail car; 2. a drilling device; 3. a hole cleaning device; 4. a grouting device; 11. a fixing frame; 12. a telescopic cylinder; 23. a first placing plate; 24. a sprocket; 25. a chain; 26. a driving motor; 27. drilling a hole rod; 28. a drilling shaft; 31. a second placing plate; 32. cleaning a hole column; 33. a clear hole collection assembly; 41. expansion shell type grouting anchor rod; 42. an anchor rod fixing plate; 43. wedge drill bit; 44. wedge blocks; 45. diamond-shaped blocks; 46. a slide bar; 47. a limiting plate; 48. a lock nut; 49. a clamping assembly; 50. a guide assembly; 51. a fixing assembly; 331. a collection tank; 332. a collection plate; 333. an elastic guiding cloth; 334. collecting the blocks; 335. a support rod; 336. a moving rod; 337. a splayed horizontal plate; 338. an electric push rod; 511. grouting holes; 512. fixing the column; 513. triangular blocks; 491. an annular plate; 492. clamping a threaded rod; 493. a clamping plate; 501. a guide spring rod; 502. a guide ring; 503. a telescopic spring; 504. a guide block; 505. a buffer spring; 506. a buffer block; 13. a grouting machine; 321. and (5) breaking the earth cone.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-10, a grouting lifting prevention device under a tunnel bottom plate comprises a track car 1, a drilling device 2, a hole cleaning device 3 and a grouting device 4, wherein the drilling device 2, the hole cleaning device 3 and the grouting device 4 are sequentially arranged on the track car 1 at equal intervals from left to right; during concrete work, firstly, the rail car 1 is controlled to move on a steel rail in a tunnel by an operator, after the rail car 1 moves to a designated position, a tunnel bottom plate is drilled by a drilling device 2, then the drilled drilling hole is cleaned by residual soil by a hole cleaning device 3, and then grouting operation is performed on the drilled hole by a grouting device 4 until the position of the drilling hole is filled with slurry.
Referring to fig. 1 and 2, the upper end of the railcar 1 is fixed with a fixing frame 11 at equal intervals, the upper end of the fixing frame 11 is symmetrically and fixedly connected with a telescopic cylinder 12, the output end of the telescopic cylinder 12 is arranged in a sliding penetrating manner through the fixing frame 11, the railcar 1 mainly moves on a track laid in a tunnel, and the fixing frame 11 and the telescopic cylinder 12 mainly drive a device arranged at the lower end of the fixing frame 11 to drill a leveling layer and a track slab in the tunnel.
Referring to fig. 3, the drilling device 2 includes a first placement plate 23, a sprocket 24, a chain 25, a driving motor 26, a drilling rod 27 and a drilling shaft 28, the first placement plate 23 is fixedly mounted at the output end of the telescopic cylinder 12 at the left side of the upper end of the railcar 1, three sprockets 24 are rotatably disposed at equal intervals at the upper end of the first placement plate 23, the three sprockets 24 are connected through the set chain 25, the three sprockets 24 are meshed with the chain 25, the driving motor 26 is connected at the upper end of the sprocket 24 located in the middle on the first placement plate 23, the driving motor 26 is fixedly mounted on the first placement plate 23 through a motor seat, the lower end of the sprocket 24 penetrates through the first placement plate 23 through rotation of a bearing and is provided with the drilling rod 27, and the drilling shaft 28 is disposed at the lower end of the drilling rod 27 in a threaded connection manner; when the track car 1 moves to a designated area, the driving motor 26 is started, the driving motor 26 drives the chain wheels 24 connected with the driving motor 26 to rotate, the chain wheels 24 connected with the driving motor drive the other two chain wheels 24 to synchronously rotate through the chain 25, the chain wheels 24 drive the drilling shaft 28 to rotate at a high speed through bearings when rotating, the drilling shaft 28 drives the drilling shaft 28 to move towards the track plate at the lower end of the tunnel and the leveling layer through the telescopic cylinder 12 on the fixing frame 11 after rotating, and holes are drilled through the drilling shaft 28, the drilling shaft 28 is required to punch three round holes for the track plate at the lower end of the tunnel and the leveling layer, the drilling shaft 28 is connected with the drilling rod 27 through a threaded connection mode, but the locking direction of the threaded connection is opposite to the direction in which the driving motor 26 drives the drilling shaft 28 to rotate, so that separation between the drilling shaft 28 and the drilling rod 27 can be avoided when the drilling shaft 28 rotates.
Referring to fig. 4 and 5, the hole cleaning device 3 includes a second placing plate 31, a hole cleaning column 32 and a hole cleaning collecting assembly 33, the second placing plate 31 is fixedly mounted at the output end of the telescopic cylinder 12 in the middle position of the upper end surface of the railcar 1, the hole cleaning column 32 is fixedly mounted at the lower end of the second placing plate 31 at equal intervals corresponding to the position of the drilling shaft 28, a round hole is formed in the middle position of the hole cleaning column 32 in a penetrating manner, the diameter of the hole cleaning column 32 is smaller than that of the drilling shaft 28, and the hole cleaning collecting assembly 33 is arranged at the inner side of the hole cleaning column 32; when the tunnel bottom plate is drilled into three holes by the drilling shaft 28, the railcar 1 is controlled to move again by an operator until the hole cleaning device 3 is positioned right above the drilled holes, then the telescopic cylinder 12 at the upper end of the hole cleaning device 3 is started, the telescopic cylinder 12 at the upper end of the hole cleaning device 3 pushes the second placing plate 31 to move downwards, then the second placing plate 31 drives the hole cleaning column 32 to be inserted into the three drilled holes until the hole cleaning column 32 is inserted into the bottom of the drilled holes, and then residual soil in the drilled holes is collected through the hole cleaning collecting assembly 33, so that the inside of the drilled holes is tidy and smooth.
Referring to fig. 4 and 5, the hole cleaning and collecting assembly 33 includes a collecting tank 331, a collecting plate 332, an elastic guiding cloth 333, a collecting block 334, a supporting rod 335, a moving rod 336, a splayed horizontal plate 337 and an electric push rod 338, wherein the collecting tank 331 is arranged at equal intervals along the circumferential direction on the hole cleaning column 32, the collecting plate 332 is hinged at the lower end of the collecting tank 331, the collecting plates 332 are connected through the elastic guiding cloth 333, the collecting block 334 is arranged on the elastic guiding cloth 333 at equal intervals, the supporting rod 335 is hinged at the inner side of the collecting plate 332, one end of the supporting rod 335 far away from the collecting plate 332 is hinged with the moving rod 336, the moving rod 336 is slidably arranged in the round hole of the hole cleaning column 32 through a bracket, the upper end of the moving rod 336 slidably penetrates through the second placing plate 31 and the splayed horizontal plate 337 to be fixedly connected, the splayed horizontal plate 337 is positioned above the second placing plate 31, the electric push rod 338 is connected at the side end of the splayed horizontal plate 337, and the electric push rod 338 is fixedly arranged at the side end of the second placing plate 31; the inner wall of the lower end of the hole cleaning column 32 is provided with a thread structure, and the lower end of the hole cleaning column 32 is connected with a broken cone 321 in a threaded connection mode.
When the hole cleaning column 32 is inserted into the bottommost part of a drilled hole, the electric push rod 338 is started, the output end of the electric push rod 338 drives the splayed horizontal plate 337 to move downwards, the splayed horizontal plate 337 pushes the moving rod 336 to move downwards along the hole cleaning column 32, the moving rod 336 pushes the collecting block 334 to open around a hinging point through the support rod 335 in the downward moving process, after the collecting plate 332 opens and is inclined upwards, the elastic guide cloth 333 on the collecting plate 332 is also tensioned, the collecting plate 332 and the elastic guide cloth 333 are in a conical structure with gradually reduced diameters from top to bottom, the collecting block 334 on the collecting plate 332 and the elastic guide cloth 333 abut against the inner wall of the drilled hole, after the collecting plate 332 and the elastic guide cloth 333 open, the telescopic cylinder 12 at the upper end of the hole cleaning device 3 starts to shrink upwards, the collecting plate 332 and the collecting block 334 at the upper end of the elastic guiding cloth 333 scrape the inside of the drilled hole until it scrapes the excessive soil on the inner wall of the drilled hole, when the soil is scraped off, the soil enters the inside of the hole cleaning column 32 through the collecting grooves 331 formed at equal intervals on the hole cleaning column 32 along the collecting plate 332 and the elastic guiding cloth 333, by repeating the above operation, the telescopic cylinder 12 at the upper end of the hole cleaning device 3 is contracted to an initial state after the excessive soil in the inside of the drilled hole is collected, at this time, the broken cone 321 at the lowermost end of the hole cleaning column 32 is unscrewed by means of screw rotation, at this time, the hole cleaning column 32 is separated from the broken cone 321, after the two are separated, the residual soil in the inside of the hole cleaning column 32 is collected by a known collecting box, then the collected residual soil is uniformly treated, the main function of the hole cleaning collecting assembly 33 is to clean and collect the residual soil generated by the drilled hole, and simultaneously the drilled hole is trimmed, ensuring the smoothness of the inside of the drilling hole.
Referring to fig. 6, 7, 8 and 10, the grouting device 4 includes an expansion shell type grouting anchor 41, an anchor fixing plate 42, a wedge drill 43, a wedge block 44, a diamond block 45, a sliding rod 46, a limiting plate 47, a locking nut 48, a clamping assembly 49, a guide assembly 50 and a fixing assembly 51, wherein the anchor fixing plate 42 is fixedly arranged at the output end of the telescopic cylinder 12 on the right side of the upper end surface of the railcar 1, a fixing groove is penetrated in the middle of the anchor fixing plate 42, an expansion shell type grouting anchor 41 is movably arranged in the fixing groove, the expansion shell type grouting anchor 41 is of a hollow structure, a groove is symmetrically arranged at the lower end of the expansion shell type grouting anchor 41, a wedge drill 43 is hinged in the groove, a wedge block 44 is fixedly arranged at the inner side of the wedge drill 43, the wedge block 44 is abutted to the diamond block 45, one side of the diamond block 45 close to the expansion shell type grouting anchor 41 is fixedly connected with the sliding rod 46, the sliding rod 46 is slidably arranged in the shell type grouting anchor 41 through a bracket, the limiting plate 47 is sleeved at the upper end of the expansion shell type grouting anchor 41, the rear end of the limiting plate 47 is abutted to the locking nut 48, the locking nut 48 is fixedly connected with the expansion shell type grouting anchor 41 through the guide assembly 48, and the locking nut 50 is fixedly arranged at the upper end of the expansion shell type grouting anchor 41, and is fixedly connected with the locking nut 48, and is fixedly arranged at the expansion shell type grouting assembly 50, and is fixedly connected with the expansion shell type grouting nut 50; a grouting machine 13 is fixedly arranged at the upper end of the rail car 1, and a guide pipe is arranged at one side of the grouting machine 13; the outer side of the expansion shell type grouting anchor 41 is of a threaded structure, and the diameter of the expansion shell type grouting anchor 41 is smaller than that of the drilling shaft 28.
When the cleaning hole collecting component 33 is used for collecting residual soil in a drilled hole, an operator controls the railcar 1 to move again until the grouting device 4 is positioned right above the drilled hole, at the moment, the telescopic cylinder 12 at the upper end of the grouting device 4 is started, the telescopic cylinder 12 at the upper end of the grouting device 4 pushes the anchor rod fixing plate 42 to move downwards, the expansion shell type grouting anchor rod 41 fixedly arranged at the lower end of the anchor rod fixing plate 42 through the clamping component 49 is inserted into a drilled hole positioned in the middle among three drilled holes, when the expansion shell type grouting anchor rod 41 is inserted into the bottommost part of the drilled hole, the clamping component 49 releases the expansion shell type grouting anchor rod 41, then the operator uses a tool to blow the sliding rod 46, the sliding rod 46 pushes the diamond block 45 after being subjected to downward pressure, after the diamond block 45 presses the wedge block 44, the wedge block 44 drives the wedge bit 43 to open outwards, the uneven arrangement of the surface of the wedge-shaped drill bit 43 can effectively improve the stability after opening, at the moment, the wedge-shaped drill bit 43 can be clamped in soil or rock, meanwhile, the sliding rod 46 fixes the expansion shell type grouting anchor 41 on the inner wall of a drilled hole through the fixing component 51 when moving downwards, the stability of the expansion shell type grouting anchor 41 is ensured, random movement of the expansion shell type grouting anchor 41 is avoided, after the expansion shell type grouting anchor 41 is fixed, slurry is conveyed into the expansion shell type grouting anchor 41 through a conduit by the grouting machine 13 at the upper end of the railway vehicle 1, then the expansion shell type grouting anchor 41 flows out of a hollow opening at the bottommost end of the expansion shell type grouting anchor 41, the slurry gradually spreads in the gaps of the soil or rock after flowing out until the upper ends of three drilled holes are filled with the slurry, the middle drilled holes are mainly used for grouting, meanwhile, after the grouting material is filled, the expansion shell type grouting anchor 41 is fixed in the bottom plate of the tunnel, the left and right drilling holes have different functions, one drilling hole is mainly used for discharging gas, the phenomenon that the gas generated in the grouting material process cannot be discharged, so that a large amount of bubbles are generated in the middle of the grouting material, the solidification hardness of the grouting material is affected, the other drilling hole is mainly used for observing the grouting depth, and the fact that the grouting amount at the bottom of the tunnel is too small or too large is avoided, so that the integral quality is affected is avoided. Simultaneously avoid the condition that tunnel board and horizontal layer appear the lifting, the diameter of shell type slip casting stock that rises 41 will be less than the diameter of drilling, guarantee that shell type slip casting stock that rises 41 can alternate fast, shell type slip casting stock that rises 41 will stay the inside of drilling and whole thick liquids are together fixed after inserting the slip casting in the middle of the drilling.
Referring to fig. 7, the fixing assembly 51 includes a grouting hole 511, a fixing column 512 and a triangular block 513, wherein grouting holes 511 are provided on the expansion shell type grouting anchor 41 at equal intervals along the circumferential direction, the fixing column 512 is slidably provided in the grouting hole 511, the triangular block 513 is fixedly provided on the sliding rod 46 slidably provided in the expansion shell type grouting anchor 41 at equal intervals, and an inclined surface structure of the triangular block 513 is abutted against the fixing column 512; when the sliding rod 46 moves downwards, the triangular blocks 513 on the sliding rod 46 squeeze the fixed columns 512, and the fixed columns 512 move outwards along the grouting holes 511 on the expansion shell type grouting anchor rods 41 through the inclined surfaces of the triangular blocks 513 after external force is applied until the fixed columns 512 are inserted into the inner walls of the drill holes, and at the moment, the expansion shell type grouting anchor rods 41 are stably fixed in the drill holes, so that the expansion shell type grouting anchor rods 41 cannot displace in the subsequent grouting process.
Referring to fig. 8, the clamping assembly 49 includes an annular plate 491, a clamping threaded rod 492 and a clamping plate 493, wherein the annular plate 491 is fixed in a fixing groove on the anchor rod fixing plate 42, the annular plate 491 is symmetrically and threadedly connected with the clamping threaded rod 492, and the clamping threaded rod 492 is rotatably provided with the clamping plate 493 near the center position of the annular plate 491; when the grouting device 4 works, before the grouting device 4 starts working, firstly, an operator places the expansion shell type grouting anchor 41 between the annular plates 491, then the clamping threaded rod 492 is rotated, the clamping threaded rod 492 drives the clamping plate 493 to clamp and fix the expansion shell type grouting anchor 41, and when the expansion shell type grouting anchor 41 needs to be loosened, the clamping threaded rod 492 is rotated reversely, so that the clamping plate 493 is separated from the expansion shell type grouting anchor 41.
Referring to fig. 10, the guide assembly 50 includes a guide spring rod 501, a guide ring 502, a telescopic spring rod 503, a guide block 504, a buffer spring 505 and a buffer block 506, the lower end of the anchor rod fixing plate 42 is symmetrically provided with the guide spring rod 501, the lower end of the guide spring rod 501 is fixedly connected with the guide ring 502, the lower end of the guide ring 502 is provided with a groove at equal intervals, the telescopic spring rod 503 is fixedly installed in the groove, one end of the telescopic spring rod 503 close to the center point of the guide ring 502 is fixedly connected with the guide block 504, the guide block 504 is slidably arranged in the groove, one end of the guide block 504 far away from the telescopic spring 503 is provided with a connecting groove, the buffer spring 505 is fixedly arranged in the connecting groove, and one end of the buffer spring 505 far away from the guide block 504 is fixedly connected with the buffer block 506; when the expansion shell type grouting anchor 41 is fixed, the telescopic cylinder 12 drives the expansion shell type grouting anchor 41 to be deep into a drilling hole, the guide block 504 at the lower end of the guide ring 502 is inserted into the edge of the drilling hole, the position of the guide ring 502 is fixed at the upper end of the drilling hole, the center of the drilling hole is coincident with the center of the guide ring 502, the telescopic cylinder 12 continues to move downwards, the expansion shell type grouting anchor 41 passes through the center of the guide ring 502 and is guided by the buffer block 506, the expansion shell type grouting anchor 41 is always located at the center of the drilling hole, and the guide assembly 50 mainly plays a role of ensuring that the expansion shell type grouting anchor 41 can be inserted into the drilling hole at the center of the drilling hole, and simultaneously ensuring that the expansion shell type grouting anchor 41 cannot be displaced due to the flow of slurry when the expansion shell type grouting anchor 41 is used for casting slurry.
The invention is used in the working process as follows: step one: firstly, an operator controls the railcar 1 to move on a steel rail in a tunnel, after the railcar 1 moves to a designated position, a driving motor 26 drives a drilling shaft 28 to rotate at a high speed through the cooperation of a chain 25 of a chain wheel 24, a telescopic cylinder 12 arranged at the upper end of the drilling shaft 28 drives the whole drilling shaft 28 to move towards the direction of a bottom plate after the drilling shaft 28 rotates, and holes are drilled through the drilling shaft 28, and the drilling shaft 28 drills three holes on the bottom plate of the tunnel.
Step two: after the leveling layer and the track layer in the tunnel are drilled by the drilling shaft 28, the railcar 1 is controlled to move again by an operator until the hole cleaning device 3 is positioned right above the drilling hole, then the telescopic cylinder 12 at the upper end of the hole cleaning device 3 pushes the second placing plate 31 to move downwards, then the second placing plate 31 drives the three hole cleaning columns 32 to be inserted into the three drilling holes, then the output end of the electric push rod 338 pushes the splayed horizontal plate 337 to move downwards, at the moment, the splayed horizontal plate 337 pushes the moving rod 336 to move downwards along the hole cleaning columns 32, the moving rod 336 pushes the collecting block 334 to open around the hinging point through the supporting rod 335 in the downward moving process, at the moment, the collecting plate 332 and the elastic guide cloth 333 are in a conical structure with gradually reduced diameters from top to bottom, and then the whole upward moving can remove residual soil on the inner wall of the drilling hole.
Step three: the expansion shell type grouting anchor 41 is placed between the annular plates 491 by an operator, then the clamping threaded rod 492 is rotated, the clamping threaded rod 492 drives the clamping plate 493 to clamp and fix the expansion shell type grouting anchor 41, after the expansion shell type grouting anchor 41 is fixed, the telescopic cylinder 12 drives the expansion shell type grouting anchor 41 to deeply penetrate into a drilled hole, then downward pressure is applied to the sliding rod 46, the sliding rod 46 extrudes the wedge-shaped drill bit 43 to be opened through the diamond-shaped blocks 45, and meanwhile the fixing column 512 is inserted into the inner wall of the drilled hole through the extrusion of the triangular blocks 513.
Step four: finally, the grouting machine 13 injects the slurry under the bottom plate of the tunnel through the expansion shell type grouting anchor rod 41, and stops grouting until the slurry gradually fills all three drilling holes, and the grouting operation is completed after the grouting machine is solidified.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a lifting device is prevented in grouting under tunnel bottom plate, includes railcar (1), drilling equipment (2), clear hole device (3) and grouting device (4), its characterized in that: the drilling device (2), the hole cleaning device (3) and the grouting device (4) are sequentially and equidistantly arranged on the railway vehicle (1) from left to right;
the upper end of the railway car (1) is fixedly provided with a fixing frame (11) at equal intervals, the upper end of the fixing frame (11) is symmetrically and fixedly connected with a telescopic cylinder (12), and the output end of the telescopic cylinder (12) is arranged in a sliding penetrating mode through the fixing frame (11);
the drilling device (2) comprises a first placing plate (23), chain wheels (24), chains (25), a driving motor (26), a drilling rod (27) and a drilling shaft (28), wherein the first placing plate (23) is fixedly arranged at the output end of a telescopic cylinder (12) on the left side of the upper end face of the railway car (1), three chain wheels (24) are arranged at the upper end of the first placing plate (23) in an equidistant rotation mode, the three chain wheels (24) are connected through the arranged chains (25), the three chain wheels (24) are meshed with the chains (25), the driving motor (26) is connected to the upper end of the middle chain wheel (24) on the first placing plate (23), the driving motor (26) is fixedly arranged on the first placing plate (23) through a motor seat, the lower end of the chain wheel (24) penetrates through the first placing plate (23) in a bearing rotation mode, the drilling rod (27) is arranged at the lower end of the drilling rod (27) in a threaded connection mode;
the hole cleaning device (3) comprises a second placing plate (31), a hole cleaning column (32) and a hole cleaning collecting assembly (33), wherein the second placing plate (31) is fixedly arranged at the output end of a telescopic cylinder (12) at the middle position of the upper end face of the railway car (1), the hole cleaning column (32) is fixedly arranged at the position of the lower end of the second placing plate (31) corresponding to a drilling shaft (28) at equal intervals, a round hole is formed in the middle position of the hole cleaning column (32) in a penetrating mode, the diameter of the hole cleaning column (32) is smaller than that of the drilling shaft (28), and the hole cleaning collecting assembly (33) is arranged at the inner side of the hole cleaning column (32);
the grouting device (4) comprises an expansion shell type grouting anchor rod (41), an anchor rod fixing plate (42), a wedge drill (43), wedge blocks (44), diamond blocks (45), sliding rods (46), limiting plates (47), locking nuts (48), clamping assemblies (49), guide assemblies (50) and fixing assemblies (51), wherein the anchor rod fixing plate (42) is fixedly arranged at the output end of a telescopic cylinder (12) on the right side of the upper end face of the railway car (1), a fixing groove is formed in the middle of the anchor rod fixing plate (42) in a penetrating mode, expansion shell type grouting anchor rod (41) is movably arranged in the fixing groove, the expansion shell type grouting anchor rod (41) is of a hollow structure, grooves are symmetrically formed in the lower end of the expansion shell type grouting anchor rod (41), the wedge drill (43) is hinged in the grooves, the inner sides of the wedge drill (43) are fixedly provided with the wedge blocks (44), the diamond blocks (45) are abutted against the diamond blocks (45), one sides of the diamond blocks (45) close to the expansion shell type grouting anchor rod (41) are fixedly connected with the sliding rods (46), the sliding rods (46) are arranged on the inner sides of the expansion shell type grouting anchor rod (41) through supports in a sliding mode, the expansion shell type grouting end (41) is provided with the limiting sleeves (47), the locking nut (48) is connected with the expansion shell type grouting anchor rod (41) in a threaded connection mode, a clamping assembly (49) is arranged on the anchor rod fixing plate (42), a guide assembly (50) is arranged at the lower end of the anchor rod fixing plate (42), and a fixing assembly (51) is arranged on the expansion shell type grouting anchor rod (41).
2. The lifting prevention device for grouting under a tunnel floor according to claim 1, wherein: clear hole collection subassembly (33) including collecting vat (331), collecting plate (332), elasticity guide cloth (333), collecting block (334), bracing piece (335), movable rod (336), splayed horizontal plate (337) and electric putter (338), collecting vat (331) have been seted up to clear hole post (32) equidistant along circumference direction, the lower extreme hinge of collecting vat (331) is provided with collecting plate (332), link to each other through elasticity guide cloth (333) between collecting plate (332), and equidistant collecting block (334) that are provided with on elasticity guide cloth (333), the inboard hinge of collecting plate (332) is provided with bracing piece (335), the one end and the movable rod (336) hinge setting of collecting plate (332) are kept away from to bracing piece (335), movable rod (336) are through the inside of support slip setting in clear hole post (32), the upper end slip of movable rod (336) runs through No. two and places board (31) fixed connection with splayed horizontal plate (337), splayed horizontal plate (337) are located the top of No. place board (31), the electric putter side (338) is connected with electric putter side (338) fixed end of splayed horizontal plate (338).
3. The lifting prevention device for grouting under a tunnel floor according to claim 1, wherein: the fixing assembly (51) comprises grouting holes (511), fixing columns (512) and triangular blocks (513), grouting holes (511) are formed in the expansion shell type grouting anchor rods (41) at equal intervals along the circumferential direction, the fixing columns (512) are arranged in the grouting holes (511) in a sliding mode, the triangular blocks (513) are fixedly arranged on sliding rods (46) which are arranged in the expansion shell type grouting anchor rods (41) in a sliding mode at equal intervals, and inclined surface structures of the triangular blocks (513) are propped against the fixing columns (512).
4. The lifting prevention device for grouting under a tunnel floor according to claim 1, wherein: the clamping assembly (49) comprises an annular plate (491), a clamping threaded rod (492) and a clamping plate (493), wherein the annular plate (491) is fixed in a fixing groove on the anchor rod fixing plate (42), the clamping threaded rod (492) is symmetrically connected with threads on the annular plate (491), and the clamping plate (493) is rotationally arranged at the central position of the clamping threaded rod (492) close to the annular plate (491).
5. The lifting prevention device for grouting under a tunnel floor according to claim 1, wherein: the guide assembly (50) comprises a guide spring rod (501), a guide ring (502), a telescopic spring rod (503), guide blocks (504), buffer springs (505) and buffer blocks (506), wherein the lower ends of anchor rod fixing plates (42) are symmetrically provided with the guide spring rod (501), the lower ends of the guide spring rod (501) are fixedly connected with the guide ring (502), grooves are formed in the lower ends of the guide ring (502) at equal intervals, the telescopic spring rod (503) is fixedly arranged in the grooves, one ends, close to the center points of the guide ring (502), of the telescopic spring rod (503) are fixedly connected with the guide blocks (504), the guide blocks (504) are arranged in the grooves in a sliding mode, one ends, far away from the telescopic spring rod (503), of the guide blocks (504) are provided with connecting grooves, the buffer springs (505) are fixedly arranged in the connecting grooves, and one ends, far away from the guide blocks (504), of the buffer springs (505) are fixedly connected with the buffer blocks (506).
6. The lifting prevention device for grouting under a tunnel floor according to claim 1, wherein: the grouting device is characterized in that a grouting machine (13) is fixedly arranged at the upper end of the rail car (1), and a guide pipe is arranged on one side of the grouting machine (13).
7. The lifting prevention device for grouting under a tunnel floor according to claim 1, wherein: the outer side of the expansion shell type grouting anchor rod (41) is of a threaded structure, and the diameter of the expansion shell type grouting anchor rod (41) is smaller than that of the drilling shaft (28).
8. The lifting prevention device for grouting under a tunnel floor according to claim 1, wherein: the inner wall of the lower end of the hole cleaning column (32) is provided with a thread structure, and the lower end of the hole cleaning column (32) is connected with a broken cone (321) in a threaded connection mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111570806.0A CN114215547B (en) | 2021-12-21 | 2021-12-21 | Grouting lifting prevention device under tunnel bottom plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111570806.0A CN114215547B (en) | 2021-12-21 | 2021-12-21 | Grouting lifting prevention device under tunnel bottom plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114215547A CN114215547A (en) | 2022-03-22 |
| CN114215547B true CN114215547B (en) | 2023-10-20 |
Family
ID=80704751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111570806.0A Active CN114215547B (en) | 2021-12-21 | 2021-12-21 | Grouting lifting prevention device under tunnel bottom plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114215547B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212898560U (en) * | 2020-08-28 | 2021-04-06 | 浙江钱塘江水利建筑工程有限公司 | A slip casting stock for unfavorable geology tunnel construction |
| CN214403621U (en) * | 2020-12-31 | 2021-10-15 | 杭州京科智能装备制造有限公司 | Operation arm of drilling and grouting integrated anchor rod trolley |
| CN115247533A (en) * | 2022-01-05 | 2022-10-28 | 刘明 | Drilling equipment for geotechnical engineering construction |
| CN218206744U (en) * | 2022-09-06 | 2023-01-03 | 江苏沙家浜建筑有限公司 | Novel expansion shell type hollow post-grouting enlarged footing anchor rod |
-
2021
- 2021-12-21 CN CN202111570806.0A patent/CN114215547B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212898560U (en) * | 2020-08-28 | 2021-04-06 | 浙江钱塘江水利建筑工程有限公司 | A slip casting stock for unfavorable geology tunnel construction |
| CN214403621U (en) * | 2020-12-31 | 2021-10-15 | 杭州京科智能装备制造有限公司 | Operation arm of drilling and grouting integrated anchor rod trolley |
| CN115247533A (en) * | 2022-01-05 | 2022-10-28 | 刘明 | Drilling equipment for geotechnical engineering construction |
| CN218206744U (en) * | 2022-09-06 | 2023-01-03 | 江苏沙家浜建筑有限公司 | Novel expansion shell type hollow post-grouting enlarged footing anchor rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114215547A (en) | 2022-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108330973B (en) | Pile pulling equipment and quick pile pulling method under low clearance height | |
| CN103195357A (en) | Full-casing type special drilling machine | |
| CN114215547B (en) | Grouting lifting prevention device under tunnel bottom plate | |
| CN113356077B (en) | Roof beam lifting frame empty line jacking downward-penetrating type reinforced concrete frame bridge construction method | |
| CN112726363B (en) | Pavement cutting equipment and method for highway construction | |
| CN203188899U (en) | Full sleeve special-type drilling machine | |
| CN211648195U (en) | Supporting device for railway tunnel construction | |
| CN116104414A (en) | Hard rock rectangular slide-resistant pile pore-forming device | |
| CN216950237U (en) | Drilling device for piling on soft foundation ground | |
| CN112709103B (en) | Rail transit railway engineering maintenance equipment and use method thereof | |
| CN214573934U (en) | Old stake underground cutting rope saw installation auxiliary device of concrete | |
| CN105804650B (en) | Long spiral drilling machine | |
| CN113565443A (en) | Soil cleaning device for long spiral drilling pressure filling pile construction | |
| CN217078434U (en) | Anti sideslip device is advanced in frame bridge top | |
| CN117702747B (en) | Pile extractor of anti-drop pile for constructional engineering | |
| CN117211680B (en) | Inclined rock face drilling method | |
| CN217632254U (en) | Hydraulic support of prestressed steel strand prospecting drilling machine | |
| CN109676753A (en) | A kind of pre-buried hole hole-forming device of prefabricated box -beam | |
| CN219262417U (en) | Length-adjustable anchor rod | |
| CN219974422U (en) | Universal bench of tunnel drilling machine | |
| CN215801663U (en) | Building underground works slope support reinforced structure | |
| CN117536069B (en) | Road subgrade subsidence treatment device | |
| CN108469351A (en) | A kind of adjustable corning machine of dual-purpose type | |
| CN220789852U (en) | Municipal works inspection shaft template reinforcing apparatus | |
| CN212454238U (en) | Movable drilling trolley |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |