CN115306430B - Embedded embedded stress structure for shield tunnel installation - Google Patents
Embedded embedded stress structure for shield tunnel installation Download PDFInfo
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- CN115306430B CN115306430B CN202211072452.1A CN202211072452A CN115306430B CN 115306430 B CN115306430 B CN 115306430B CN 202211072452 A CN202211072452 A CN 202211072452A CN 115306430 B CN115306430 B CN 115306430B
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- 238000009434 installation Methods 0.000 title claims abstract description 24
- 239000000872 buffer Substances 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000010276 construction Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 238000013016 damping Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920002396 Polyurea Polymers 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/086—Methods of making concrete lining segments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses an embedded pre-buried stress structure for shield tunnel installation, which comprises a duct piece, pre-buried grooves, positioners, buffers, detectors and alarms, wherein a plurality of groups of holes are formed in the top of the duct piece, a plurality of groups of pre-buried grooves are formed in the inner wall of the duct piece, positioners are arranged on the outer walls of two sides of the pre-buried grooves, sliding grooves are formed in the inner wall of the positioners, and a plurality of groups of buffers are arranged on the outer walls of the pre-buried grooves. According to the invention, the installation efficiency of the duct piece in the shield tunnel can be improved by installing the locator and the locating block, the electromagnet works to generate magnetic force, the magnetic force attracts the magnetic attraction plate to move to drive the sliding plate to slide, the sliding plate drives the locating block to move to shrink when moving, the duct piece is moved to the installation place after the locating block moves to stop the electromagnet, the first spring resets to push the sliding plate to reset, the sliding plate resets to push the locating block to reset, and the locating block moves into the prefabricated limiting groove, so that the purpose of quickly splicing and installing the duct piece is achieved.
Description
Technical Field
The invention relates to the technical field of embedded stress structures, in particular to an embedded stress structure for shield tunnel installation.
Background
The shield is a fully mechanized construction method in the construction of the undermining method, the shield machine is pushed underground, surrounding rocks are supported by the shield shell and the duct piece to prevent collapse in the tunnel, soil is excavated in front of the excavation face by a cutting device, the soil is carried out of the tunnel by a soil outlet machine, the prefabricated concrete duct piece is assembled to form a tunnel structure, the prefabricated concrete duct piece supports the inside of the shield tunnel, an embedded groove is placed in the inside of the duct piece in advance when the duct piece is produced, supporting stress can be carried out on earthwork outside the shield tunnel through anchor bars, and the embedded stress structure of the existing duct piece is not convenient for assisting in installing the duct piece when in use, so that the installation efficiency of the duct piece is improved.
The existing pre-buried stress structure has the defects that:
1. patent document CN113137447a discloses a shield segment self-adaptive vibration damping and impact resistance device and a shield segment mounting structure, "including a plurality of shield segments that can surround into cylindrical structure and be used for fastening adjacent shield segment's segment bolt, each shield segment has all been seted up with shield segment self-adaptive vibration damping and impact resistance device suited device's device mounting groove, after the both ends of each segment bolt pass the bolt through-hole that corresponds shield segment self-adaptive vibration damping and impact resistance device respectively, can make segment connecting ring cover be close to the one end terminal surface of device mounting groove and the tank bottom butt of device mounting groove to lock adjacent shield segment. According to the technical scheme, through monitoring the actual stress condition of the duct piece bolt in real time, the flow characteristic of magnetorheological fluid and the vibration damping characteristic of the magnetorheological elastomer are adaptively adjusted according to the detection condition, so that excellent vibration damping and impact resistance effects are achieved, the fatigue life of the shield duct piece and the duct piece bolt is greatly prolonged, and tunnel damage caused by overload damage is avoided;
2. patent document CN107620598A discloses a shield tunnel lining segment and a reinforcing method thereof, the existing structure comprises: the sealing device comprises a top sealing block, a first adjacent block and a second adjacent block which are positioned at two ends of the top sealing block, a bottom sealing block, a first standard block and a second standard block which are positioned at two ends of the bottom sealing block, wherein the first adjacent block is connected with the first standard block, and the second adjacent block is connected with the second standard block; according to the invention, steel strand pore canals are formed in the existing first adjacent blocks and first standard blocks, steel strands are arranged in the steel strand pore canals, and steel strand outlets are formed in the inner sides of the first adjacent blocks and the first standard blocks; the second neighbor block and the second standard block also do the above-described processing. The invention also discloses a shield tunnel lining segment reinforcing method, which comprises the following steps: 1) Prefabricating lining segments according to the bearing load of the tunnel structure; 2) Judging the stress condition of the duct piece, and determining a duct piece reinforcing method; 3) Reinforcing the segment. The shield tunnel lining segment and the reinforcing method provided by the invention have the advantages that the integral rigidity and deformation coordination of the tunnel structure are improved, and the operation safety of a tunnel can be ensured, however, the shield tunnel lining segment of the above publication mainly considers the improvement of the integral rigidity and deformation coordination of the tunnel structure and does not consider the problem of buffering impact force, so that a structure capable of relieving the impact force is necessary to be researched, and the deformation damage of a workpiece caused by the overlarge impact force can be prevented;
3. patent document CN106761812a discloses a method for reinforcing the segment structure of the existing shield tunnel, which comprises the following steps: reinforcing stratum outside the existing shield tunnel segment, performing waterproof treatment on the joint of the shield segment, reinforcing the integrity and deformation resistance of the shield segment, and managing and controlling construction of adjacent structures. The existing shield tunnel segment structure reinforcing method is flexible in construction, simple in structure, mature in construction process, high in reliability and good in reinforcing effect; the shield tunnel segment structure disclosed by the publication mainly considers the improvement of the deformation resistance and does not consider the problem of detecting the pressure of a stress point, so that a structure for detecting the stress point is necessary to be researched, segment rupture caused by overlarge pressure of the stress point can be prevented, and accidents cannot be prevented in time;
4. patent document CN106050263a discloses a shield tunnel segment structure and connection structure thereof, "including segment body, its characterized in that: the duct piece body mainly comprises a steel plate layer, a concrete layer wrapping the steel plate layer and reinforcing steel meshes which are respectively positioned at two sides of the steel plate layer and buried in the concrete layer; a metal joint piece is fixedly arranged at the side edge of the duct piece body, a groove for accommodating a water stop belt is formed in the outer side of the metal joint piece, and the water stop belt is arranged in the groove; an outer protective layer is arranged on the outer side of the duct piece body, and the outer protective layer is a polyurea layer compounded on the outer side face of the duct piece body. The connecting structure consists of two shield tunnel segment structures which are adjacently arranged and a connecting piece for connecting the two shield tunnel segment structures, and the connecting steel plate consists of an arc-shaped section in the middle and straight sections at two sides. The shield tunnel segment structure disclosed by the publication mainly considers preventing deformation and improving durability, and does not consider the problem of detecting workpiece deformation, so that the detection of the workpiece deformation is necessary, and the occurrence of accidents can be reduced.
Disclosure of Invention
The invention aims to provide an embedded pre-buried stress structure for shield tunnel installation, which is used for solving the problems of improving the installation efficiency, relieving the impact force, detecting the pressure and monitoring the deformation in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the embedded pre-buried stress structure for the shield tunnel installation comprises a duct piece, pre-buried grooves, a positioner, a buffer, a detector and a warning indicator, wherein a plurality of groups of holes are formed in the top of the duct piece, a plurality of groups of pre-buried grooves are formed in the inner wall of the duct piece, and the positioners are arranged on the outer walls of the two sides of the pre-buried grooves;
the inner wall of the locator is provided with a plurality of groups of guide rods, the outer wall of the guide rod is provided with a first spring in a surrounding mode, one end of the first spring is provided with a sliding plate, one end of the guide rod penetrates through the inside of the sliding plate, one side outer wall of the sliding plate is fixedly provided with a plurality of groups of positioning blocks, the other side outer wall of the sliding plate is provided with a magnetic attraction plate, the inner wall of the locator is provided with an electromagnet, and the electromagnet is located at one side of the guide rod;
the inner wall of the locator is provided with a chute, the chute is positioned on one side of the electromagnet, and the outer wall of the embedded groove is provided with a plurality of groups of buffers.
Preferably, the buffer frame is installed to the outer wall of sliding plate, and multiunit No. one slide bar is installed to the inner wall of spout, and No. two springs are installed around the outer wall of No. one slide bar, and two sets of sliding blocks are installed to the bottom of buffer frame, and the inside of sliding block is run through to the one end of No. one slide bar, and the limiting plate is installed to the inner wall of spout, and the inside of limiting plate is run through to the one end of No. one slide bar.
Preferably, the inner wall of the embedded groove is provided with anchor bars in a penetrating way, one ends of the anchor bars extend to the inside of the holes, and the inner wall of the duct piece is provided with a plurality of groups of sliding grooves.
Preferably, the guide arm is installed to the inner wall of bumper, and the outer wall of guide arm encircles installs No. three springs, and the slider is installed to the inner wall of bumper, and the inside of slider is run through to the one end of guide arm, and the connecting rod is installed at the top of slider, and the connecting piece is all installed to the both sides outer wall of anchor bar, and the one end of connecting rod extends to the outer wall of connecting piece, and multiunit attenuator is installed to the inner wall of bumper, and the one end of attenuator extends to the outer wall of slider.
Preferably, the shape of the embedded groove is the inside of embedded and section of jurisdiction of arc, and the sliding plate is rectangular form, and the appearance of sliding block is "protruding" shape, and one side of sliding block extends to the inside of spout, and the anchor bar is located cylindricly, installs the bearing disc on the top, and the attenuator is located the below of guide arm, and one side outer wall fixed connection of one side of attenuator and slider.
Preferably, the multiunit detector is installed to the inner wall in pre-buried groove, and two sets of No. two slide bars are installed to the inner wall of detector, and the sleeve is installed around the outer wall of No. two slide bars, and the supporting block is installed to telescopic outer wall, and the one end of anchor bar extends to the top of supporting block, and pressure sensor is installed to the inner wall bottom of detector, and pressure sensor's top extends to the bottom of supporting block.
Preferably, the frame is installed to the inner wall in pre-buried groove, and the frame is located one side of detector, and battery pack is installed to the inner wall of frame, and battery pack and pressure sensor electric connection, transmission module is installed at the inner wall top of frame, and transmission module passes through the wire with pressure sensor and is connected.
Preferably, the warning indicator is installed to the bottom in pre-buried groove, multiunit supporting shoe is installed to the inner wall of warning indicator, and power module is installed to the inner wall bottom of warning indicator, and power module is located one side of supporting shoe, and the support body is installed to power module's outer wall, and contact No. one is installed to the inner wall bottom of support body, and power module and contact No. one electric connection, and the inner wall of support body runs through and installs the drive block, and No. two contact is installed to the bottom of drive block, and the plate is installed at the inner wall top of warning indicator.
Preferably, a plurality of groups of warning lamps are arranged at the bottom of the duct piece, and the warning lamps are electrically connected with the second contact.
Preferably, the working steps of the embedded pre-buried stress structure are as follows:
the method comprises the steps that S1, when a duct piece is installed in a shield tunnel, an electromagnet is electrically connected with an external circuit, the electromagnet works to generate magnetic force, the magnetic force attracts a magnetic attraction plate to move to drive a sliding plate to vertically slide on the outer wall of a guide rod, the sliding plate moves to drive a positioning block to move and shrink, the positioning block moves to an installation place after the positioning block moves, the electromagnet stops working, a first spring resets to push the sliding plate to reset, the sliding plate resets to push the positioning block to reset, the positioning block moves into a prefabricated limiting groove, the positioning block can temporarily position and install the duct piece, labor intensity is reduced, and the purpose of quickly splicing and installing the duct piece is achieved;
s2, after the installation of the duct piece is completed, the top ends of the anchor bars extend to the outer wall of the duct piece through holes, after the anchor bars are punched by outside earthwork, the anchor bars move to push the connecting piece to move, the connecting piece is pushed to move in the sliding groove, the sliding block is pushed to move in the horizontal movement position of the outer wall of the guide rod, the third spring relieves the impact force applied by the sliding block when the sliding block moves, the impact force applied by the anchor bars can be effectively buffered, deformation caused by overlarge impact force applied by the anchor bars can be effectively prevented, and the damper can prevent the sliding block from continuously shaking;
s3, after the top end of the anchor bar is extruded by earthwork, pressure is applied to the bearing block, so that the bearing block moves, pressure is applied to the top of the pressure sensor when the bearing block moves, the battery assembly provides energy for the operation of the pressure sensor, the pressure sensor detects the pressure and then transmits the pressure to the outside through the transmission module, the pressure born by the anchor bar can be detected, the purpose of detecting the pressure born by the anchor bar is achieved, corresponding construction measures can be made according to the degree of a stress point, and accidents can be prevented;
s4, after the duct piece is deformed due to overlarge pressure, the appearance of the warning indicator can be changed, the movement position of the plate can be pushed after the shape of the warning indicator is changed, the movement position of the driving block can be pushed to the inner wall vertical movement position of the frame body after the plate is moved, after the driving block moves to enable the first contact piece to be contacted with the second contact piece, the current inside the power supply assembly flows into the warning lamp, the warning lamp below the deformation is lightened, the constructor can be reminded of the concrete position of the duct piece deformation, the remedy can be timely made, accidents are prevented, and the safety risk is reduced.
Preferably, in the step S1, the method further includes the following steps:
s11, pushing a sliding block to horizontally slide in a sliding groove when the buffer frame moves, driving a first sliding rod to move when the sliding block moves, wherein one end of the first sliding rod is fixedly connected with a second spring, the first sliding rod can push the second spring to move when moving, a limiting plate limits the second spring, when the electromagnet stops working, the second spring pushes the first sliding rod to reset, the first sliding rod resets to enable the sliding block to reset, the sliding block resets to enable the buffer frame to be pushed to move, and the sliding plate can be pushed to reset through the buffer frame movement;
in the step S3, the method further includes the following steps:
and S31, when the bearing block moves, the sleeve is driven to vertically slide on the outer wall of the second slide bar, so that the bearing block can vertically slide.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the installation efficiency of the duct piece in the shield tunnel can be improved by installing the locator and the locating block, the electromagnet works to generate magnetic force, the magnetic force attracts the magnetic attraction plate to move to drive the sliding plate to vertically slide at the outer wall of the guide rod, the sliding plate drives the locating block to move and shrink when moving, the locating block moves to the installation place after moving, meanwhile, the buffer frame is pushed to move to stop the electromagnet, the first spring is reset to push the sliding plate to reset, the sliding plate is reset to push the locating block to reset, the locating block moves into the prefabricated limiting groove, the position of the duct piece can be temporarily positioned and installed, the labor intensity is reduced, and the purpose of quickly splicing and installing the duct piece is achieved;
2. according to the invention, the buffer is arranged to buffer the impact force received by the anchor bar in the shield tunnel, when the pipe piece is installed, the top end of the anchor bar extends to the outer wall of the pipe piece through the hole, after the anchor bar is punched by outside earthwork, the anchor bar moves to push the moving position of the connecting piece, the connecting piece moves to push the connecting rod to move in the sliding groove, the connecting rod moves to push the sliding block to move horizontally on the outer wall of the guide rod, and the third spring is used for relieving the impact force applied by the sliding block when the sliding block moves, so that the impact force received by the anchor bar can be effectively buffered, and deformation caused by overlarge impact force received by the anchor bar is prevented;
3. according to the invention, the pressure applied to the anchor bars by the earthwork in the shield tunnel can be detected by installing the detector and the pressure sensor, the top end of the anchor bar is pressed by the earthwork and then applies pressure to the bearing block, so that the bearing block moves, the pressure is applied to the top of the pressure sensor when the bearing block moves, the battery assembly provides energy for the operation of the pressure sensor, the pressure sensor detects the pressure and then transmits the pressure to the outside through the transmission module, the pressure borne by the anchor bar can be detected, the purpose of detecting the pressure borne by the anchor bar is achieved, corresponding construction measures can be made according to the degree of the stress point, and accidents can be prevented;
4. the invention can monitor whether the pipe piece is deformed or not by installing the warning indicator and the warning lamp, when the pipe piece is deformed due to overlarge pressure, the appearance of the warning indicator can be changed, the plate can be pushed to move after the shape of the warning indicator is changed, the driving block can be pushed to move vertically on the inner wall of the frame body after the plate moves, the driving block moves to enable the first contact piece to be contacted with the second contact piece, and the current in the power supply assembly flows into the warning lamp, so that the warning lamp below the deformation is lightened, the concrete position of the pipe piece deformation position of constructors can be reminded, the remedy can be timely made, the accident is prevented, and the safety risk is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a pre-buried groove structure of the present invention;
FIG. 3 is a schematic view of a positioner according to the present invention;
FIG. 4 is a schematic diagram of a buffer structure according to the present invention;
FIG. 5 is a schematic diagram of a detector structure according to the present invention;
FIG. 6 is a schematic diagram of a frame structure of the present invention;
FIG. 7 is a schematic diagram of the structure of the warning device according to the present invention;
fig. 8 is a flow chart of the operation of the present invention.
In the figure: 1. a segment; 2. a hole; 3. a pre-buried groove; 4. a positioner; 5. a guide rod; 6. a first spring; 7. a sliding plate; 8. a positioning block; 9. a magnetic suction plate; 10. an electromagnet; 11. a buffer frame; 12. a chute; 13. a first slide bar; 14. a second spring; 15. a sliding block; 16. a limiting plate; 17. anchor bars; 18. a buffer; 19. a sliding groove; 20. a guide rod; 21. a slide block; 22. a connecting rod; 23. a connecting piece; 24. a damper; 25. a third spring; 26. a detector; 27. a second slide bar; 28. a sleeve; 29. a bearing block; 30. a pressure sensor; 31. a frame; 32. a battery assembly; 33. a transmission module; 34. an alarm; 35. a support block; 36. a power supply assembly; 37. a plate; 38. a first contact; 39. a driving block; 40. a second contact; 41. a frame body; 42. a warning light.
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.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, 2 and 8, an embodiment of the present invention provides: the utility model provides an embedded pre-buried atress structure for shield tunnel installation, including section of jurisdiction 1, pre-buried groove 3, locator 4, buffer 18, detector 26 and attention device 34, the top of section of jurisdiction 1 is equipped with multiunit hole 2, section of jurisdiction 1 provides installation space for hole 2, section of jurisdiction 1 supports the shield tunnel, multiunit pre-buried groove 3 is installed to the inner wall of section of jurisdiction 1, locator 4 is all installed to the both sides outer wall of pre-buried groove 3, pre-buried groove 3 can support section of jurisdiction 1, spout 12 is installed to the inner wall of locator 4, and spout 12 is located one side of electro-magnet 10, multiunit buffer 18 is installed to the outer wall of pre-buried groove 3, buffer frame 11 is installed to the outer wall of sliding plate 7, multiunit first slide bar 13 is installed to the inner wall of spout 12, no. spring 14 is installed around the outer wall of first slide bar 13, two sets of sliding block 15 are installed to the bottom of buffer frame 11, one end of the first sliding rod 13 penetrates through the inside of the sliding block 15, a limiting plate 16 is arranged on the inner wall of the sliding groove 12, one end of the first sliding rod 13 penetrates through the inside of the limiting plate 16, the sliding block 15 is pushed to horizontally slide in the sliding groove 12 when the buffer frame 11 moves, the sliding block 15 is driven to move, one end of the first sliding rod 13 is fixedly connected with the second spring 14, the second spring 14 is pushed to move when the first sliding rod 13 moves, the limiting plate 16 limits the second spring 14, when the electromagnet 10 stops working, the second spring 14 pushes the first sliding rod 13 to reset, the first sliding rod 13 resets to enable the shape of the sliding block 15 to reset the embedded groove 3 to be arc-shaped and embedded in the duct piece 1, the sliding plate 7 is in a strip shape, the shape of the sliding block 15 is convex, one side of the sliding block 15 extends to the inside of the sliding groove 12, the anchor bar 17 is located cylindricly, installs the bearing disc on the top, and the attenuator 24 is located the below of guide arm 20, and the one end of attenuator 24 and one side outer wall fixed connection of slider 21.
Referring to fig. 2 and 3, the inner wall of the positioner 4 is provided with a plurality of groups of guide rods 5, the outer wall of the guide rods 5 is provided with a first spring 6 in a surrounding manner, one end of the first spring 6 is provided with a sliding plate 7, one end of the guide rods 5 penetrates through the interior of the sliding plate 7, one side outer wall of the sliding plate 7 is fixedly provided with a plurality of groups of positioning blocks 8, the other side outer wall of the sliding plate 7 is provided with a magnetic attraction plate 9, the inner wall of the positioner 4 is provided with an electromagnet 10, the electromagnet 10 is positioned at one side of the guide rods 5, the electromagnet 10 works to generate magnetic force, the magnetic force attracts the magnetic attraction plate 9 to drive the sliding plate 7 to vertically slide at the outer wall of the guide rods 5 when the sliding plate 7 moves, the positioning blocks 8 are driven to move and shrink when the sliding plate 7 moves, the positioning blocks 8 move to the installation place, meanwhile, the buffer frame 11 can be pushed to move, the electromagnet 10 stops working, the first spring 6 resets to push the sliding plate 7 to reset, the positioning blocks 8 move into the prefabricated limiting grooves, and the position of the segments 1 can be temporarily positioned and installed, so that the labor intensity is reduced, and the purpose of quickly splicing and installing segments 1 is achieved.
Referring to fig. 4 and 5, the inner wall of the pre-buried groove 3 is penetrated and installed with the anchor bar 17, and one end of the anchor bar 17 extends to the inside of the hole 2, the inner wall of the segment 1 is provided with a plurality of groups of sliding grooves 19, the inner wall of the buffer 18 is installed with the guide rod 20, the outer wall of the guide rod 20 is surrounded and installed with the No. three spring 25, the inner wall of the buffer 18 is installed with the sliding block 21, and one end of the guide rod 20 penetrates the inside of the sliding block 21, the top of the sliding block 21 is installed with the connecting rod 22, both side outer walls of the anchor bar 17 are all installed with the connecting piece 23, and one end of the connecting rod 22 extends to the outer wall of the connecting piece 23, after the inner wall of the buffer 18 is installed with a plurality of groups of dampers 24, and one end of the dampers 24 extends to the outer wall of the sliding block 21, after the anchor bar 17 is punched by the outside earthwork, the anchor bar 17 moves to push the moving position of the connecting piece 23, the connecting piece 23 pushes the connecting rod 22 to move in the inner moving position of the sliding groove 19, the connecting rod 22 pushes the sliding block 21 to move in the outer wall of the guide rod 20 when the connecting rod 22 moves, the No. three spring 25 relieves the impact force applied by the sliding block 21, so that the anchor bar 17 can effectively buffer the anchor bar 17.
Referring to fig. 5 and 6, a plurality of groups of detectors 26 are installed on the inner wall of the pre-buried tank 3, two groups of second slide bars 27 are installed on the inner wall of the detector 26, a sleeve 28 is installed around the outer wall of the second slide bars 27, a bearing block 29 is installed on the outer wall of the sleeve 28, one end of each anchor bar 17 extends to the top of the corresponding bearing block 29, a pressure sensor 30 is installed on the bottom of the inner wall of the detector 26, the top of each pressure sensor 30 extends to the bottom of the corresponding bearing block 29, a frame 31 is installed on the inner wall of the pre-buried tank 3, the frame 31 is located on one side of the detector 26, a battery assembly 32 is installed on the inner wall of the frame 31, the battery assembly 32 is electrically connected with the pressure sensor 30, a transmission module 33 is installed on the top of the inner wall of the frame 31, the transmission module 33 is connected with the corresponding pressure sensor 30 through a wire, the top of each anchor bar 17 is pressed by earth, pressure is applied to the corresponding bearing block 29 when the bearing block 29 moves, the top of each bearing block 29 applies pressure, the pressure sensor 30 works, the battery assembly 32 supplies power to the corresponding pressure sensor 30, the pressure sensor 30 after the pressure sensor 30 detects the pressure, the pressure is transmitted to the corresponding pressure sensor 17, and the corresponding pressure bearing block 17 can be subjected to the detected, and an accident can be prevented.
Referring to fig. 4 and 7, the bottom of the pre-buried groove 3 is provided with the warning device 34, the inner wall of the warning device 34 is provided with the plurality of groups of supporting blocks 35, the bottom of the inner wall of the warning device 34 is provided with the power supply component 36, the power supply component 36 is located at one side of the supporting blocks 35, the outer wall of the power supply component 36 is provided with the frame 41, the bottom of the inner wall of the frame 41 is provided with the first contact piece 38, the power supply component 36 is electrically connected with the first contact piece 38, the inner wall of the frame 41 is provided with the driving block 39 in a penetrating manner, the bottom of the driving block 39 is provided with the second contact piece 40, the top of the inner wall of the warning device 34 is provided with the plate 37, the bottom of the duct piece 1 is provided with the plurality of groups of warning lamps 42, the warning lamps 42 are electrically connected with the second contact piece 40, after the duct piece 1 is deformed due to overlarge pressure, the appearance of the warning device 34 is changed, the shape of the warning device 34 is pushed to move the position, the driving block 39 is pushed to move the inner wall of the frame 41 to move the position, the first contact piece 38 is contacted with the second contact piece 38, the second contact piece 40 is contacted with the inner wall of the driving block 36, the inner wall of the inside of the power supply component 36 is driven by the driving block is pushed to move the inner wall of the first contact piece, and the inner wall of the first contact piece is driven by the second contact piece is driven by the driving piece, the driving plate is driven to move the driving plate and the first contact piece is driven to move the inside the first contact piece is and the first contact piece is a current and a current is deformed to move a high when a high safety plate, and a safety plate is a high when a safety plate is mounted and a high to move a high to a high safety problem.
The working steps of the embedded pre-buried stress structure are as follows:
s1, when a duct piece 1 is installed in a shield tunnel, an electromagnet 10 is electrically connected with an external circuit, so that the electromagnet 10 works to generate magnetic force, a sliding plate 7 is driven to vertically slide on the outer wall of a guide rod 5 when a magnetic attraction plate 9 is attracted by the magnetic force, a positioning block 8 is driven to move and shrink when the sliding plate 7 moves, the duct piece 1 is moved to an installation place after the positioning block 8 moves, meanwhile, a buffer frame 11 is pushed to move, the electromagnet 10 stops working, a spring 6 resets to push the sliding plate 7 to reset, the sliding plate 7 resets to push the positioning block 8 to reset, and the positioning block 8 moves into a prefabricated limiting groove, so that the position of the duct piece 1 can be temporarily positioned and installed, the labor intensity is reduced, and the aim of quickly splicing and installing the duct piece 1 is fulfilled;
s2, after the duct piece 1 is installed, the top ends of the anchor bars 17 extend to the outer wall of the duct piece 1 through the holes 2, after the anchor bars 17 are punched by outside earthwork, the anchor bars 17 move to push the connecting pieces 23 to move, the connecting pieces 23 move to push the connecting rods 22 to move in the sliding grooves 19, the connecting rods 22 move to push the sliding blocks 21 to move horizontally on the outer wall of the guide rods 20, the third springs 25 release impact force applied by the sliding blocks 21 when the sliding blocks 21 move, impact force applied by the anchor bars 17 can be effectively buffered, deformation caused by overlarge impact force applied by the anchor bars 17 can be effectively prevented, and the damper 24 can prevent the sliding blocks 21 from continuously shaking;
s3, after the top ends of the anchor bars 17 are extruded by earthwork, pressure is applied to the bearing blocks 29, so that the bearing blocks 29 move, pressure is applied to the tops of the pressure sensors 30 when the bearing blocks 29 move, the battery assembly 32 supplies energy for the operation of the pressure sensors 30, the pressure sensors 30 detect the pressure and then transmit the pressure to the outside through the transmission modules 33, the pressure born by the anchor bars 17 can be detected, the purpose of detecting the pressure born by the anchor bars 17 is achieved, corresponding construction measures can be made according to the degree of stress points, and accidents can be prevented;
s4, after the duct piece 1 is deformed due to overlarge pressure, the appearance of the warning indicator 34 is changed, the plate 37 is pushed to move after the shape of the warning indicator 34 is changed, the driving block 39 is pushed to move vertically on the inner wall of the frame 41 after the plate 37 moves, the driving block 39 moves to enable the first contact piece 38 to be in contact with the second contact piece 40, and the current in the power supply assembly 36 flows into the warning lamp 42, so that the warning lamp 42 below the deformation is lightened, a constructor can be reminded of the specific position of the deformation of the duct piece 1, and the remedy can be timely made, so that accidents are prevented, and the safety risk is reduced.
In step S1, the method further includes the steps of:
s11, pushing a sliding block 15 to horizontally slide in a sliding groove 12 when a buffer frame 11 moves, driving a first sliding rod 13 to move when the sliding block 15 moves, fixedly connecting one end of the first sliding rod 13 with a second spring 14, pushing the second spring 14 to move when the first sliding rod 13 moves, limiting the second spring 14 by a limiting plate 16, and pushing the first sliding rod 13 to reset when an electromagnet 10 stops working, wherein the first sliding rod 13 resets to reset the sliding block 15, the sliding block 15 resets to push the buffer frame 11 to move, and pushing the sliding plate 7 to reset through the movement of the buffer frame 11;
in step S3, the method further includes the steps of:
s31, when the bearing block 29 moves, the sleeve 28 is driven to vertically slide on the outer wall of the second slide rod 27, so that the bearing block 29 can vertically slide.
When the pipe piece 1 is installed in a shield tunnel, the electromagnet 10 is electrically connected with an external circuit, so that the electromagnet 10 works to generate magnetic force, the magnetic force attracts the magnetic attraction plate 9 to move to drive the sliding plate 7 to vertically slide at the outer wall of the guide rod 5, the sliding plate 7 drives the positioning block 8 to move to shrink, the positioning block 8 moves to move to an installation place, meanwhile, the buffer frame 11 is pushed to move to stop working of the electromagnet 10, the spring 6 resets to push the sliding plate 7 to reset, the sliding plate 7 resets to push the positioning block 8 to reset, the positioning block 8 moves into a prefabricated limiting groove, the position of the pipe piece 1 can be temporarily positioned and installed, the labor intensity is reduced, the purpose of quickly splicing and installing the pipe piece 1 is achieved, after the pipe piece 1 is installed, the top ends of the anchor bars 17 extend to the outer wall of the pipe piece 1 through the holes 2, after the anchor bar 17 is stamped by outside earthwork, the anchor bar 17 moves to push the connecting piece 23 to move, the connecting piece 23 moves to push the connecting rod 22 to move in the sliding groove 19, the connecting rod 22 moves to push the sliding block 21 to move horizontally on the outer wall of the guide rod 20, the third spring 25 relieves the impact force applied by the sliding block 21 when the sliding block 21 moves, the impact force applied by the anchor bar 17 can be effectively buffered, the deformation caused by the overlarge impact force applied by the anchor bar 17 can be effectively prevented, the damper 24 can prevent the sliding block 21 from continuously shaking, the top end of the anchor bar 17 can apply pressure to the bearing block 29 after being extruded by the earthwork, the bearing block 29 moves to move, the top of the pressure sensor 30 is applied by the bearing block 29 when moving, the battery pack 32 provides energy for the operation of the pressure sensor 30, the pressure sensor 30 detects pressure and then transmits the pressure to the outside through the transmission module 33, the pressure borne by the anchor bar 17 can be detected, the purpose of detecting the pressure borne by the anchor bar 17 is achieved, corresponding construction measures can be made according to the degree of a stress point, accidents can be prevented, after the duct piece 1 is deformed due to overlarge pressure, the appearance of the warning indicator 34 can be changed, the shape of the warning indicator 34 can push the plate 37 to move, the plate 37 can push the driving block 39 to move vertically on the inner wall of the frame 41 after moving, the driving block 39 moves to enable the contact piece 38 to be in contact with the contact piece 40, the current inside the power supply assembly 36 flows into the warning lamp 42, the warning lamp 42 below the deformation is lightened, the concrete position of the deformation position of the duct piece 1 can be reminded of constructors, the accidents can be timely remedied, and the safety risks are reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The utility model provides a shield tunnel installs with embedded pre-buried atress structure, includes section of jurisdiction (1), pre-buried groove (3), locator (4), buffer (18), detector (26) and alarm (34), its characterized in that: a plurality of groups of holes (2) are formed in the top of the duct piece (1), a plurality of groups of embedded grooves (3) are formed in the inner wall of the duct piece (1), and locators (4) are arranged on the outer walls of two sides of the embedded grooves (3);
the inner wall of the positioner (4) is provided with a plurality of groups of guide rods (5), the outer wall of the guide rods (5) is provided with a first spring (6) in a surrounding mode, one end of the first spring (6) is provided with a sliding plate (7), one end of the guide rods (5) penetrates through the inside of the sliding plate (7), one side outer wall of the sliding plate (7) is fixedly provided with a plurality of groups of positioning blocks (8), the other side outer wall of the sliding plate (7) is provided with a magnetic suction plate (9), the inner wall of the positioner (4) is provided with an electromagnet (10), and the electromagnet (10) is located at one side of the guide rods (5);
the outer wall of the sliding plate (7) is provided with a buffer frame (11), the inner wall of the sliding groove (12) is provided with a plurality of groups of first sliding rods (13), the outer wall of the first sliding rods (13) is provided with a second spring (14) in a surrounding mode, the bottom of the buffer frame (11) is provided with two groups of sliding blocks (15), one end of the first sliding rods (13) penetrates through the inside of the sliding blocks (15), the inner wall of the sliding groove (12) is provided with a limiting plate (16), and one end of the first sliding rods (13) penetrates through the inside of the limiting plate (16);
a chute (12) is arranged on the inner wall of the locator (4), the chute (12) is positioned on one side of the electromagnet (10), and a plurality of groups of buffers (18) are arranged on the outer wall of the embedded groove (3);
the inner wall of the embedded groove (3) is provided with anchor bars (17) in a penetrating way, one end of each anchor bar (17) extends to the inside of the hole (2), and a plurality of groups of sliding grooves (19) are formed in the inner wall of the duct piece (1);
the inner wall of the buffer (18) is provided with a guide rod (20), the outer wall of the guide rod (20) is provided with a third spring (25) in a surrounding mode, the inner wall of the buffer (18) is provided with a sliding block (21), one end of the guide rod (20) penetrates through the sliding block (21), the top of the sliding block (21) is provided with a connecting rod (22), the outer walls of two sides of the anchor bar (17) are provided with connecting pieces (23), one end of the connecting rod (22) extends to the outer wall of the connecting piece (23), the inner wall of the buffer (18) is provided with a plurality of groups of dampers (24), and one end of each damper (24) extends to the outer wall of the sliding block (21);
the inner wall of the embedded groove (3) is provided with a plurality of groups of detectors (26), the inner wall of each detector (26) is provided with two groups of second slide bars (27), the outer wall of each second slide bar (27) is provided with a sleeve (28) in a surrounding mode, the outer wall of each sleeve (28) is provided with a bearing block (29), one end of each anchor bar (17) extends to the top of each bearing block (29), the bottom of the inner wall of each detector (26) is provided with a pressure sensor (30), and the top of each pressure sensor (30) extends to the bottom of each bearing block (29);
the bottom of the embedded groove (3) is provided with a warning device (34), the inner wall of the warning device (34) is provided with a plurality of groups of supporting blocks (35), the bottom of the inner wall of the warning device (34) is provided with a power supply assembly (36), the power supply assembly (36) is positioned on one side of the supporting blocks (35), the outer wall of the power supply assembly (36) is provided with a frame body (41), the bottom of the inner wall of the frame body (41) is provided with a first contact (38), the power supply assembly (36) is electrically connected with the first contact (38), the inner wall of the frame body (41) is penetrated and provided with a driving block (39), the bottom of the driving block (39) is provided with a second contact (40), and the top of the inner wall of the warning device (34) is provided with a plate (37);
the working steps of the embedded pre-buried stress structure are as follows:
s1, when a duct piece (1) is installed in a shield tunnel, an electromagnet (10) is electrically connected with an external circuit, so that the electromagnet (10) works to generate magnetic force, a magnetic attraction plate (9) is attracted by the magnetic force to drive a sliding plate (7) to vertically slide at the outer wall of a guide rod (5), a positioning block (8) is driven to move and shrink when the sliding plate (7) moves, the duct piece (1) is moved to an installation place after the positioning block (8) moves, meanwhile, a buffer frame (11) is pushed to move, the electromagnet (10) stops working, a spring (6) resets to push the sliding plate (7) to reset, the sliding plate (7) resets to push the positioning block (8) to reset, the positioning block (8) moves into a prefabricated limiting groove, the position of the duct piece (1) can be temporarily positioned and installed, the labor intensity is reduced, and the aim of quickly splicing and installing the duct piece (1) is fulfilled;
s2, after the duct piece (1) is installed, the top end of the anchor rib (17) extends to the outer wall of the duct piece (1) through the hole (2), after the anchor rib (17) is stamped by outside earthwork, the anchor rib (17) moves to push the connecting piece (23) to move, the connecting piece (23) pushes the connecting rod (22) to move in the sliding groove (19), the connecting rod (22) moves to push the sliding block (21) to move horizontally on the outer wall of the guide rod (20), the third spring (25) releases impact force applied to the sliding block (21) when the sliding block (21) moves, impact force applied to the anchor rib (17) can be effectively buffered, deformation caused by overlarge impact force applied to the anchor rib (17) can be effectively prevented, and the damper (24) can prevent the sliding block (21) from continuously shaking;
s3, the top end of the anchor bar (17) is pressed by earthwork and then applies pressure to the bearing block (29), so that the bearing block (29) moves, the top of the pressure sensor (30) is applied with pressure when the bearing block (29) moves, the battery component (32) provides energy for the operation of the pressure sensor (30), the pressure sensor (30) detects the pressure and then transmits the pressure to the outside through the transmission module (33), the pressure born by the anchor bar (17) can be detected, the purpose of detecting the pressure born by the anchor bar (17) is achieved, corresponding construction measures can be made according to the degree of a stress point, and accidents can be prevented;
s4, when the duct piece (1) is deformed due to overlarge pressure, the appearance of the warning indicator (34) is changed, the plate (37) is pushed to move after the shape of the warning indicator (34) is changed, the driving block (39) is pushed to move vertically on the inner wall of the frame body (41) after the plate (37) moves, the driving block (39) moves to enable the first contact piece (38) to be in contact with the second contact piece (40), and then the current in the power supply assembly (36) flows into the warning lamp (42), so that the warning lamp (42) below the deformation is lightened, a constructor can be reminded of the specific position of the deformation of the duct piece (1) to be timely remedied, accidents are prevented, and the safety risk is reduced;
in the step S1, the method further includes the following steps:
s11, promote sliding block (15) when buffer frame (11) remove in the inside horizontal slip position of spout (12), drive slide bar (13) remove the position when sliding block (15) remove, the one end and No. two spring (14) fixed connection of slide bar (13), no. two spring (14) removal can be promoted when slide bar (13) remove, limiting plate (16) carry out the spacing to No. two spring (14), when electro-magnet (10) stop work, no. two spring (14) promote slide bar (13) reset, no. one slide bar (13) reset makes sliding block (15) reset, sliding block (15) reset makes and promotes buffer frame (11) removal, can promote sliding plate (7) reset through buffer frame (11) removal.
2. The embedded pre-buried stress structure for shield tunnel installation according to claim 1, wherein: the shape of pre-buried groove (3) is the arc, and is embedded in the inside of section of jurisdiction (1), and sliding plate (7) are rectangular form, and the appearance of sliding block (15) is "protruding" shape, and one side of sliding block (15) extends to the inside of spout (12), and anchor bar (17) are cylindric, and the bearing disc is installed on the top, and attenuator (24) are located the below of guide arm (20), and one side outer wall fixed connection of attenuator (24) and slider (21).
3. The embedded pre-buried stress structure for shield tunnel installation according to claim 1, wherein: the frame (31) is installed to the inner wall in pre-buried groove (3), and frame (31) are located one side of detector (26), and battery pack (32) are installed to the inner wall of frame (31), and battery pack (32) and pressure sensor (30) electric connection, transmission module (33) are installed at the inner wall top of frame (31), and transmission module (33) are connected through the wire with pressure sensor (30).
4. The embedded pre-buried stress structure for shield tunnel installation according to claim 2, wherein: a plurality of groups of warning lamps (42) are arranged at the bottom of the duct piece (1), and the warning lamps (42) are electrically connected with the second contact piece (40).
5. The method of using an embedded pre-buried stress structure for shield tunnel installation according to claim 1, wherein in the step S3, the method further comprises the steps of:
and S31, when the bearing block (29) moves, the sleeve (28) is driven to vertically slide on the outer wall of the second slide bar (27), so that the bearing block (29) can vertically slide.
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| CN202211072452.1A CN115306430B (en) | 2022-09-02 | 2022-09-02 | Embedded embedded stress structure for shield tunnel installation |
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| CN113153359A (en) * | 2021-04-07 | 2021-07-23 | 同济大学 | Separated deformation type shield segment connecting structure |
| CN214697864U (en) * | 2021-03-01 | 2021-11-12 | 中铁五局集团电务工程有限责任公司 | Glass fiber reinforced concrete segment for shield tunnel |
| CN215804582U (en) * | 2021-07-12 | 2022-02-11 | 江西建工第三建筑有限责任公司 | Shield tunnel construction section of jurisdiction connection structure |
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| JP2003097196A (en) * | 2001-09-21 | 2003-04-03 | Tokyo Electric Power Co Inc:The | Composite segment in pipe embedment method |
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