Double-wedge plate type needle beam lining trolley and construction method

Abstract

The application belongs to the field of water conservancy engineering shield tunnel construction, and particularly relates to a double-wedge plate type needle beam lining trolley and a construction method. The application aims to provide a full-circle formwork, the longitudinal axis of which can be converted between a straight line and a broken line without the need of adding and removing wedge-shaped formworks and rotating the formwork system, and the full-circle formwork comprises a needle beam, an offset frame system arranged on the needle beam and dragged by a traction device to move along the needle beam, a formwork system fixed outside the offset frame system, a plurality of formwork systems being arranged at intervals, and a wedge-shaped plate and a rotating system installed on the offset frame system to adjust the gap between adjacent formwork systems.

Description

Technical Field

[0001] This invention belongs to the field of shield tunnel construction in water conservancy projects, specifically a double-wedge plate needle beam lining trolley and its construction method. Background Technology

[0002] In recent years, with the development of infrastructure construction in my country, the number of full-circle tunnels has gradually increased, especially water diversion and conveyance tunnels. Compared with shield tunnels for urban subways, full-circle tunnels for water diversion and conveyance have smaller cross-sections and smaller turning radii, making it more difficult for the lining trolley to change between straight and curved sections when pouring secondary lining concrete.

[0003] Using a circular needle-beam lining trolley for the lining of a full-circle tunnel ensures the integrity of the lining concrete. Existing needle-beam lining trolleys include the following types: 1. Lining trolley with a straight longitudinal axis: It is highly adaptable when constructing straight sections, but when constructing curved sections, the lining trolley cannot match the curved section well. Therefore, in curved sections, especially small radius curved sections, it is necessary to reduce the length of concrete poured by the lining trolley at one time to avoid excessive deviation in the lining thickness on both sides, which would fail to meet the design and specification requirements.

[0004] 2. Lining trolley with added wedge plates: When constructing curved sections, disassemble the needle beam and formwork, and install wedge plates to adapt to the curved sections.

[0005] 3. Rotary formwork lining trolley: The lining trolley template is made into a trapezoid. When constructing straight sections, the lining trolley template is made straight by connecting the long and short sides of the template. When constructing curved sections, the lining trolley template is made curved by rotating the template and connecting the long sides of the template (see CN202110647452.9 for details).

[0006] Traditional straight-line needle-beam lining trolleys have the following problems: 1. When constructing on curved sections, in order to ensure the lining thickness, the length of each lining cannot be too long, resulting in many sections of lining concrete, many construction joints, and high quality risks. 2. The work of erecting formwork and waterproofing is extensive; 3. The lining process involves multiple steps, resulting in slow progress and high labor and equipment costs.

[0007] 4. Due to the numerous sections of the concrete lining, construction is subject to significant interference and is difficult to organize.

[0008] The traditional zigzag lining trolley for installing wedge plates has the following problems: 1. The process of disassembling the needle beam and installing the wedge plate is complicated. Repeated disassembly and assembly will affect the accuracy of the lining trolley, and the trolley components are prone to local deformation, which will affect the service life.

[0009] 2. The installation and dismantling of wedge-shaped formwork takes a long time, affecting the construction progress and incurring high labor costs.

[0010] Rotary molding lining trolleys have the following problems: 1. Two sets of top pumping ports need to be installed, and the concrete pouring window can only be opened and closed horizontally, which deviates significantly from traditional concrete pouring operation habits.

[0011] 2. The rotation center of the template is located at the center of the template system, therefore counterweights are required to maintain the stability of the center of gravity.

[0012] 3. The rotating template system has many components, including a hydraulic system. When the template rotates, the hydraulic system that operates the template must also rotate with the template. Each template requires a hydraulic system. Therefore, multiple independent closed hydraulic systems are needed so that they do not interfere with each other during rotation. As a result, multiple independent hydraulic operating systems are required. When performing rotary molding, multiple people need to work together to operate the hydraulic system, which is very difficult.

[0013] 4. When adjusting the trolley alignment, the entire formwork system needs to be rotated. The structure to be rotated is heavy, and all workers inside the formwork must be evacuated and all construction tools must be cleaned before rotation to avoid various accidents after rotation and to prevent significant construction interference. Summary of the Invention

[0014] The purpose of this invention is to provide a method for converting the longitudinal axis of a full circular template between a straight line and a broken line without the need to install or remove wedge templates or rotate the template system, and to provide a double wedge plate needle beam lining trolley and construction method.

[0015] This invention adopts the following technical solution: a double-wedge plate type needle beam lining trolley, comprising: Needle beam; An offset frame system is mounted on a needle beam and is moved along the needle beam by a traction device; A template system, wherein multiple template systems are fixed to the outside of the offset frame system; A wedge plate and a rotating system, the wedge plate and rotating system being mounted on an offset frame system for adjusting the gap between adjacent template systems.

[0016] The needle beam has a groove on its left or right side to provide offset reaction force to the offset frame system.

[0017] In some embodiments, a front support and a tail support are provided at both ends of the needle beam. The front support and the tail support are used to support the overall weight of the lining trolley and to support the weight of the concrete when pouring the lining concrete.

[0018] In some embodiments, a front working platform and a rear working platform are respectively provided on the upper part of both ends of the needle beam, and a traction device is provided on the two working platforms.

[0019] In some embodiments, the traction device includes a front traction motor system and a rear traction motor system respectively provided on a front working platform and a rear working platform, and the front traction motor system and the rear traction motor system are respectively connected to the front and rear ends of the offset frame system via traction ropes.

[0020] In some embodiments, the front traction motor system includes a roller and a gear, which mesh with a longitudinal traction motor and a gear; a traction rope is wound on the roller and the gear, and the traction rope is connected to the offset frame system via a traction rope fixing clamp.

[0021] In some embodiments, the offset frame system includes multiple sets of sliding frames connected in sequence. A set of frame clutch cylinders is provided between each pair of adjacent sliding frames. A frame sliding trolley is provided inside the sliding frame for moving on the needle beam. A frame offset cylinder is provided inside one side of the sliding frame, and the end of the frame offset cylinder contacts the outside of the needle beam.

[0022] In some embodiments, an upper support bar for the slewing bearing is provided on the upper part of one side connected to the sliding frame, and a lower support bar for the slewing bearing is provided on the lower part, for fixing the wedge plate and the rotation system.

[0023] In some embodiments, two sets of sliding frame diagonal braces and sliding frame connecting rods are provided on both sides of the sliding frame, and a sliding frame reaction force stop is provided at the intersection of the sliding frame diagonal braces and the sliding frame connecting rods to connect the sliding frame diagonal braces and the sliding frame connecting rods into a whole.

[0024] In some embodiments, the frame offset cylinder is mounted on the sliding frame reaction block on one side of the needle beam with a groove.

[0025] In some embodiments, a rotary motor mounting bracket is provided on one side connected to the sliding frame for fixing the wedge plate and the rotary motor of the rotary system.

[0026] In some embodiments, the frame sliding trolley includes a frame-type vehicle body composed of a frame sliding trolley top plate, a frame sliding trolley side plate, and a frame sliding trolley bottom plate. The lower part of the frame-type vehicle body is equipped with frame sliding trolley wheels. The inner side of the frame-type vehicle body is provided with frame sliding trolley rollers and an arc-shaped support plate. The arc-shaped support plate is fixed to the inner side of the frame-type vehicle body by a support spring.

[0027] In some embodiments, the sliding frame includes an end sliding frame I, a central sliding frame II, a central sliding frame III, and an end sliding frame IV arranged sequentially from front to back.

[0028] In some embodiments, the end of the frame offset cylinder is hinged to the base plate, and multiple pulleys are provided on the base plate.

[0029] In some embodiments, the template system includes a fully circular structure consisting of a top mold, two side molds and a bottom mold. A set of template systems is provided on the outside of each sliding frame. Each template system is provided with template stiffening ribs and end template end panels at both ends of the template. Each side mold is provided with a pouring window and the top mold is provided with a pumping port.

[0030] In some embodiments, the wedge plate and the rotating system include: A wedge plate is provided at the end of each of two adjacent sliding frames, and the wedge plate is in contact with the end of the template system; A rotating system is fixed to the end of the sliding frame, and the rotating system drives the wedge plate to rotate.

[0031] In some embodiments, the wedge plate includes a fully circular plate composed of a top template, side template I, side template II and bottom template. End panels are provided on both sides of the fully circular plate, and positioning holes are provided on the upper end panels of the end panels. The side of the fully circular plate that is attached to the end of the template system is perpendicular to the tunnel axis, and the other side is provided with an angle, thereby forming a wedge structure that is wide on one side and narrow on the other side.

[0032] In some embodiments, the rotating system includes: Slewing bearing outer ring; The inner gear ring of the slewing bearing is fixed inside the outer ring of the slewing bearing and meshes with the drive device; A wedge plate support device is connected between the outer ring of the slewing bearing and the wedge plate.

[0033] In some embodiments, the formula for calculating the long side of the wedge plate on the plane is: In the formula, R is the radius of the tunnel line, r is the tunnel diameter (i.e., the radius of the lining trolley formwork), and L is the length of one section of the lining trolley formwork system. 短 This is the length of the short side of the wedge plate in the plane.

[0034] A construction method employing the aforementioned lining trolley. Includes the following steps: S1: The lining trolley is placed inside the tunnel to be lining; S2: The offset frame system, template system, wedge plate, and rotation system are separated; S3: Adjust the wedge plate and rotation system to their initial positions; S4: Closure of the offset frame system, template system, wedge plate and rotation system; S5: Move the lining trolley to the location where the concrete is to be poured and pour the concrete, then proceed to the next cycle of construction.

[0035] In some embodiments, in step S5, when construction proceeds from a straight section to a curved section, the wedge plate is rotated until the long and long sides of adjacent wedge plates are connected to each other, and the long and long sides are placed on the outer ring of the tunnel curve, while the short and short sides are located on the inner ring of the tunnel curve.

[0036] Compared with the prior art, the present invention has the following beneficial effects: 1. When transitioning from a straight section to a curved section, there is no need to disassemble or assemble the wedge plate or rotate the template. Simply rotating the wedge plate at the end of the template system is sufficient to interchange the straight and curved sections. Compared to the template system, the wedge plate is lighter and has a simpler structure. Therefore, this invention reduces the working weight of rotation and the cost of the lining trolley.

[0037] 2. Compared with the rotary formwork lining process, the present invention does not require rotating the template, so only one set of pumping port is needed at the top of the template. The pumping window on the template can also be set to open downwards, which continues the traditional habit of operators to open and close the pumping window.

[0038] 3. The center of gravity of the formwork system is below that of the needle beam, eliminating the need for counterweights and increasing the stability of the lining trolley, thus reducing safety risks.

[0039] 4. When the template opens and retracts, the wedge plate follows the template to open and retract. There is no need to set up a separate hydraulic system and hydraulic operating system for the wedge plate. The entire trolley only has one hydraulic system, and only one person is needed to operate the entire trolley.

[0040] 5. The template system and wedge plate rotate on a fixed contact surface when transitioning between straight lines and curves, which improves the docking accuracy between the template system and the wedge plate.

[0041] 6. When adjusting the trolley alignment, only the wedge plate needs to be rotated, and the various construction tools placed on the operating platform inside the template do not need to be moved, reducing construction interference. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the lining principle of the present invention on a straight section; Figure 2 This is a schematic diagram of the principle of lining the curved section of the present invention; Figure 3 This is a structural diagram of the present invention; Figure 4 Side view of the invention; Figure 5 Diagram of the longitudinal beam and traction mechanism; Figure 6 This is the front view of the longitudinal beam; Figure 7This is a structural diagram of the longitudinal beam operating platform; Figure 8 For the structural diagram of the lining trolley frame; Figure 9 This is a diagram of the frame structure at both ends; Figure 10 This is the front view of the frame; Figure 11 Diagram I shows the frame structure at both ends; Figure 12 Diagram II shows the frame structure at both ends; Figure 13 This is a diagram of the central framework structure. Figure 14 Here is a structural diagram of the frame sliding trolley; Figure 15 This is a diagram of the internal structure of the frame sliding trolley; Figure 16 Here is a structural diagram of the frame offset cylinder and offset trolley; Figure 17 This is a structural diagram of the offset trolley; Figure 18 Diagram I shows the structure of the two-end template system. Figure 19 Diagram II shows the structure of the two-end template system. Figure 20 Side view of the template system at both ends; Figure 21 Central template system structure diagram I; Figure 22 Central template system structure diagram II; Figure 23 Side view of the central template system; Figure 24 This is a side view of the template system; Figure 25 Figure I shows the structural diagram of the wedge plate rotating frame system. Figure 26 Diagram II shows the structure of the wedge plate rotating frame system. Figure 27 This is a diagram showing the location of the wedge plate support device; Figure 28 This is a structural diagram of the wedge plate support device; Figure 29 A structural diagram of the wedge plate installation for the end-panel template system; Figure 30 A frontal view of the wedge plate of the template system at both ends; Figure 31 This is a front view of the wedge-shaped plate structure; Figure 32 Diagram showing the positional structure of the wedge plates and templates in the end-plate system; Figure 33A structural diagram of the wedge plate installation for the central formwork system; Figure 34 A frontal view of the wedge plate of the central template system; Figure 35 Front view of the wedge plate and template system; Figure 36 A diagram showing the separation of the template system; In the diagram: 1-Inner wall of tunnel segment, 2-Tunnel centerline, 3-Poured concrete lining section, 4-Needle beam, 5-Front support of needle beam, 6-Tail support of needle beam. 7- End template system I, 7.1- Top mold of end template system I, 7.2- Side mold of end template system I, 7.3- Bottom mold of end template system I, 7.4- Template stiffening rib, 7.5- End template end panel, 7.6- Positioning hole of template end panel; 8-Central Formwork System II, 8.1-Top formwork of Central Formwork System II, 8.2-Side formwork of Central Formwork System II, 8.3-Bottom formwork of Central Formwork System II, 8.4-Formwork stiffening ribs, 8.5-Central formwork end panels, 8.6-Positioning holes for formwork end panels; 9-Central formwork system III, 9.1-Top formwork of formwork system III, 9.2-Side formwork of formwork system III, 9.3-Bottom formwork of formwork system III; 10-End formwork system IV, 10.1-Top formwork of formwork system IV, 10.2-Side formwork of formwork system IV, 10.3-Bottom formwork of formwork system IV; 11-Wedge plate I, 11.1-Long side of wedge plate I, 11.2-Short side of wedge plate I, 11.3-Top template of wedge plate I, 11.4-Side template I of wedge plate I, 11.5-Side template II of wedge plate I, 11.6-Bottom template of wedge plate I, 11.7-End panel of wedge plate I, 11.7.1-Vertical end panel of wedge plate I, 11.7.2-Sloping end panel of wedge plate I; 11.8 - Positioning hole on end panel of wedge plate I; 11.9 - Fixing hinge of wedge plate; 12-Wedge plate II, 12.1-Long side of wedge plate II, 12.2-Short side of wedge plate II, 12.3-Top template of wedge plate II; 12.7.1 - Vertical end panel of wedge plate II; 12.7.2 - Inclined end panel of wedge plate II; 13-Wedge plate III, 13.1-Long side of wedge plate III, 13.2-Short side of wedge plate III, 13.3-Top template of wedge plate III, 13.4-Side template I of wedge plate III, 13.5-Side template II of wedge plate III, 13.6-Bottom template of wedge plate III, 13.7-End panel of wedge plate III, 13.7.1-Vertical end panel of wedge plate III, 13.7.2-Sloping end panel of wedge plate III; 13.8 - Positioning holes on the end face of wedge plate III; 14-Wedge plate IV, 14.1-Long side of wedge plate IV, 14.2-Short side of wedge plate IV, 14.7.1-Vertical end face of wedge plate IV, 14.7.2-Sloping end face of wedge plate IV; 15 - Wedge plate V, 15.1 - Long side of wedge plate V, 15.2 - Short side of wedge plate V; 16 - Wedge plate VI, 16.1 - Long side of wedge plate VI, 16.2 - Short side of wedge plate VI; 17-Front traction motor system; 17.1-Drums and gears; 17.2-Needle beam longitudinal movement motor and gears; 18-Rear traction motor system; 19-Front working platform; 20-Rear working platform; 21-Slide groove; 22-Traction rope, 22.1-Traction rope fixing clamp; 23-End sliding frame I, 23.1-Sliding frame diagonal brace, 23.2-Sliding frame connecting rod brace, 23.3-Sliding frame reaction block; 24-Central sliding frame II, 25-Central sliding frame III, 26-End sliding frame IV; 27-Frame clutch cylinder, 27.1-Frame clutch cylinder hinge lug; 28-Frame sliding trolley, 28.1-Frame sliding trolley top plate, 28.2-Frame sliding trolley side plate, 28.3-Frame sliding trolley wheel plate, 28.4-Frame sliding trolley running wheel, 28.5-Frame sliding trolley roller, 28.6-Arc-shaped support plate, 28.7-Support spring, 28.8-Frame sliding trolley bottom plate; 29 - Upper support bar for slewing bearing; 30 - Lower support bar for slewing bearing; 31-Frame offset cylinder, 31.1-Hinge of frame offset trolley, 31.2-Pulley of frame offset trolley, 31.3-Base plate of frame offset trolley, 31.3.1-Pulley shaft of pulley of frame offset trolley; 32-Rotary motor mounting bracket; 33-Top mold support frame; 34-Bottom mold support frame; 35-Side mold opening and closing cylinder; 36-Bottom mold adjusting cylinder; 37-Pouring window; 38-Pump inlet; 39-Slewing bearing outer ring; 40-Slewing bearing inner gear ring. 41-Wedge plate support device, 41.1-Support shaft of wedge plate support device, 41.2-Support plate of wedge plate support device, 41.3-Fixing bolt, 41.4-Support baffle; 42-Wedge plate support bar, 43-Drive gear, 44-Drive motor and gearbox. Detailed Implementation

[0043] The technical solution of the present invention will now be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Example 1: This embodiment provides a double-wedge plate needle beam lining trolley where the longitudinal axis of a full circular template can be switched between a straight line and a broken line without rotating the template, only rotating the wedge plate.

[0045] The lining trolley structure is configured as follows: The lining trolley includes: 4. Needle beam; 5. Front support for the needle beam in the lining forward direction; 6. Tail support for the needle beam; 7. End formwork system I; 8. Central formwork system II; 9. Central formwork system III; 10. End formwork system IV; 11. Wedge plate I; 12. Wedge plate II; 13. Wedge plate III; 14. Wedge plate IV; 15. Wedge plate V; 16. Wedge plate VI; 17. Front traction motor system; 18. Rear traction motor system; 19. Front working platform; 20. Rear working platform; 21. Slide chute; 22. Traction rope; 23. End sliding frame I; 44. Central sliding frame. II24, Central sliding frame III25, End sliding frame IV26, Frame clutch cylinder 27, Frame sliding trolley 28, Upper support bar of slewing bearing 29, Lower support bar of slewing bearing 30, Frame offset cylinder 31, Rotary motor fixing frame 32, Top mold support frame 33, Bottom mold support frame 34, Side mold opening and closing cylinder 35, Bottom mold adjusting cylinder 36, Casting window 37, Pumping port 38, Outer ring of slewing bearing 39, Inner gear ring of slewing bearing 40, Wedge plate support device 41, Wedge plate support bar 42, Drive gear 43, Drive motor and gearbox 44.

[0046] For ease of explanation, the lining trolley described in this embodiment is divided into five major systems: needle beam and longitudinal movement system A, offset frame system B, template system C, wedge plate and rotation system D, and hydraulic and electrical system E.

[0047] Needle beam and longitudinal movement system A: like Figure 5 , Figure 6 , Figure 7 As shown: The needle beam and longitudinal movement system A includes needle beam 4, front support of needle beam in the lining forward direction 5, rear support of needle beam of lining trolley 6, front traction motor system 17, rear traction motor system 18, front working platform 19, rear working platform 20, chute 21, and traction rope 22. Needle beam 4 is a hollow, channel-shaped structure made of steel, which significantly reduces weight compared to box beams. The needle beam 4 is provided with a slide groove 21 on the left or right side. The function of the slide groove 21 is to provide offset reaction force to the offset frame system B.

[0048] The needle beam 4 is provided with a front support 5 and a rear support 6 for the lining trolley needle beam in the direction of lining advance at both ends. The front support 5 and the rear support 6 are used to support the overall weight of the lining trolley and the weight of the concrete when pouring the lining concrete.

[0049] The upper part of both ends of the needle beam 4 is provided with a front working platform 19 and a rear working platform 20, respectively. The front traction motor system 17 and the rear traction motor system 18 are respectively installed on the two working platforms.

[0050] Furthermore, the traction rope 22 also includes a traction rope fixing clamp 22.1, which is fixed to the offset frame system B.

[0051] Furthermore, the front traction motor system 17 includes a roller and gear 17.1, a needle beam longitudinal movement motor and gear 17.2, and the roller and gear 17.1 meshes with the longitudinal movement motor and gear 17.2; a traction rope 22 is wound on the roller and gear 17.1, and the traction rope 22 is connected to the offset frame system B through the traction rope fixing clamp 22.1. The longitudinal movement motor and gear 17.2 drives the offset frame system B to move longitudinally forward and backward on the needle beam 4, or drives the needle beam 4 to move longitudinally forward and backward within the offset frame system B.

[0052] The rear traction motor system 18 is configured the same as the front traction motor system 17, and will not be described again. Its function corresponds to that of the front traction motor system 17, driving the offset frame system B to move rearward on the needle beam 4, or driving the needle beam 4 to move forward longitudinally within the offset frame system B.

[0053] Offset Frame System B: like Figures 8 to 17The offset frame system B includes an end sliding frame I23, a central sliding frame II24, a central sliding frame III25, an end sliding frame IV26, a frame clutch cylinder 27, a frame sliding trolley 28, an upper support bar for the slewing bearing 29, a lower support bar for the slewing bearing 30, a frame offset cylinder 31, and a rotary motor mounting bracket 32.

[0054] Furthermore, a set of frame clutch cylinders 27 is provided on the left and right sides between every two sets of sliding frames. The frame clutch cylinder 27 also includes a frame clutch cylinder hinge 27.1, which is set on the vertical rod at the end of the sliding frame.

[0055] The vertical rods at the connection points of the end sliding frame I23, the central sliding frame II24, the central sliding frame III25, and the end sliding frame IV26 are all equipped with frame clutch cylinder hinges 27.1. The four sets of sliding frames are connected by frame clutch cylinders 27 and frame clutch cylinder hinges 27.1 respectively.

[0056] The front and rear upper crossbars of each sliding frame are respectively fitted around the needle beam 4 by two frame sliding trolleys 28.

[0057] like Figure 11 As shown, two sets of sliding frame diagonal braces 23.1 and sliding frame connecting rod braces 23.2 are provided on both sides of the end sliding frame I23. At the intersection of the sliding frame diagonal braces 23.1 and the sliding frame connecting rod braces 23.2, a sliding frame reaction block 23.3 is provided to connect the sliding frame diagonal braces 23.1 and the sliding frame connecting rod braces 23.2 into a whole to improve strength. On the two sliding frame reaction blocks 23.3 on the side of the needle beam 4 where the sliding groove 21 is provided, fixed frame offset cylinders 31 are respectively provided. When the frame offset cylinders 31 extend and retract, they drive the end sliding frame I23 to offset. Similarly, the central sliding frame II24, central sliding frame III25, and end sliding frame IV26 are also provided with the same configuration.

[0058] The end sliding frame I23, the central sliding frame II24, the central sliding frame III25, and the end sliding frame IV26 are connected in sequence. The end sliding frame I23 and the end sliding frame IV26 are respectively connected to the traction rope 22 through the traction rope fixing clamp 22.1.

[0059] like Figure 9 , Figure 10 , Figure 11 , Figure 12As shown, the end sliding frame I23 is provided with two sets of upper slewing bearing support bars 29 and lower slewing bearing support bars 30 at the end corresponding to the central sliding frame II24, for fixing the wedge plate and the slewing bearing of the rotating system D; similarly, the end sliding frame IV26 is also provided with two sets of upper slewing bearing support bars 29 and lower slewing bearing support bars 30 at the end corresponding to the central sliding frame III25.

[0060] The end sliding frame I23 has a rotary motor fixing frame 32 in the center of the upper crossbar at the end corresponding to the central sliding frame II24, which is used to fix the wedge plate and the rotary motor of the rotating system D. Similarly, the end sliding frame IV26 also has a rotary motor fixing frame 32 in the center of the upper crossbar at the end corresponding to the central sliding frame III25, which is used to fix the wedge plate and the rotary motor of the rotating system D.

[0061] like Figure 13 As shown, the central sliding frame II24 and the central sliding frame III25 are equipped with two sets of upper support bars 29 and lower support bars 30 for the slewing bearings at both ends, which are used to fix the wedge plate and the slewing bearings of the rotating system D. The upper crossbars at both ends are equipped with rotating motor fixing frames 32 for fixing the wedge plate and the rotating motors of the rotating system D.

[0062] Furthermore, the upper support bar 29 and the lower support bar 30 of the slewing bearing are installed on the end face of the sliding frame and protrude from the end face. The radius of the arc-shaped block set on the support bar is consistent with the radius of the outer ring 39 of the slewing bearing.

[0063] Furthermore, such as Figure 14 , Figure 15 The frame sliding trolley 28 is composed of a frame sliding trolley top plate 28.1, a frame sliding trolley side plate 28.2, a frame sliding trolley wheel plate 28.3, a frame sliding trolley running wheel 28.4, a frame sliding trolley sliding roller 28.5, an arc-shaped support plate 28.6, a support spring 28.7, and a frame sliding trolley bottom plate 28.8; The front and rear upper crossbars of each sliding frame pass through the space formed by the top plate 28.1, the side plate 28.2, and the bottom plate 28.8 of the sliding trolley. Two frame sliding trolley wheel plates 28.3 are provided under the bottom plate 28.8. Two sets of frame sliding trolley running wheels 28.4 are installed in the wheel plates. Each set of frame sliding trolley running wheels 28.4 is fixed to the frame sliding trolley wheel plate 28.3 by axle. Wheel sills are provided on both sides of the frame sliding trolley running wheels 28.4 to prevent the frame sliding trolley running wheels 28.4 from slipping off the top of the web of the needle beam 4.

[0064] A series of frame sliding trolley rollers 28.5 are installed inside the frame sliding trolley base plate 28.8. The frame sliding trolley rollers 28.5 are installed inside the frame sliding trolley base plate 28.8 through roller shafts. The function of the frame sliding trolley rollers 28.5 is to reduce the friction between the upper crossbar of the sliding frame and the frame sliding trolley 28 when the sliding frame is offset, and to prevent excessive friction from pushing the frame sliding trolley 28 down under the needle beam 4 and causing an accident.

[0065] Arc-shaped support plates 28.6 and support springs 28.7 are respectively installed in the side plates 28.2 of the sliding trolley on both sides. When the sliding frame is offset, the upper crossbar of the sliding frame will not be perpendicular to the needle beam and will form a certain angle. The arc-shaped support plate 28.6 is used to clamp the upper crossbar of the sliding frame when the sliding frame is offset, and the support spring 28.7 is used to provide clamping force to the arc-shaped support plate 28.6.

[0066] Furthermore, such as Figure 10 , Figure 16 , Figure 17 As shown, one end of the frame offset cylinder 31 is fixed to the sliding frame reaction block 23.3, and the other end is hinged to the base plate 31.3 of the frame offset trolley through the hinge lug 31.1. A series of pulley shafts 31.3.1 of the pulleys of the frame offset trolley are provided on the base plate 31.3. The pulleys 31.2 of the frame offset trolley are installed on the pulley shafts 31.3.1. The frame offset trolley is built into the slide groove 21. When the needle beam 4 moves longitudinally relative to the sliding frame, the frame offset trolley prevents the frame offset cylinder 31 from jamming.

[0067] Template System C: like Figures 18-24 The template system C includes end template system I7, central template system II8, central template system III9, end template system IV10, top template support frame 33, bottom template support frame 34, side template opening and closing cylinder 35, bottom template adjusting cylinder 36, pouring window 37, and pumping port 38.

[0068] Furthermore, each template is a complete circle, and on the plane, the end lines of each template are perpendicular to the tunnel axis. Among them, end template system I7 and end template system IV10 are end templates, and central template system II8 and central template system III9 are central templates.

[0069] The length of each template is the same as the length of the end faces of both ends of the sliding frame, and its length does not include the protruding end faces of the upper support bar 29 and the lower support bar 30 of the slewing bearing.

[0070] like Figure 20As shown, the length of the end template system I7 is the same as the length of the two end faces of the end sliding frame I23. The upper support bar 29 and the lower support bar 30 of the slewing bearing protrude beyond the template to provide installation space for the wedge plate and the rotation system D. Correspondingly, the structure of the end template system IV10 corresponds to that of the end template system I7.

[0071] like Figure 23 As shown, the length of the central formwork system II8 is the same as the length of the end faces of the central sliding frame II24. The upper support bar 29 and the lower support bar 30 of the slewing bearing protrude beyond the ends of the formwork to provide installation space for the wedge plate and the rotating system D. The structure of the central formwork system III9 is ​​the same as that of the central formwork system II8.

[0072] In this example, template system C consists of four parts: top template, bottom template, and two side templates. Specifically, the end template system I7 and central template system II8 are used for explanation. The structural settings of central template system III9 and end template system IV10 correspond to those of template system I7 and central template system II8.

[0073] The end formwork system I7 consists of the top formwork 7.1, two side formworks 7.2, and the bottom formwork 7.3. Each formwork is equipped with stiffening ribs 7.4. End formwork end panels 7.5 are located at both ends of the formwork. The end panel 7.2 of the end formwork system I7, located near the central formwork system II8, has end panel positioning holes 7.6. Both side formworks 7.2 have pouring windows 37, and the top formwork 7.1 has a pumping port 38. Similarly, the structure of the end formwork system IV10 corresponds to that of the end formwork system I7.

[0074] Furthermore, the top mold 7.1 and bottom mold 7.3 of end template system I have the same arc length, and the end panels 7.5 of the top mold 7.1 and bottom mold 7.3 are symmetrical vertically. The side molds 7.2 of the two end template systems I have the same arc length and are symmetrical horizontally. Similarly, the structure of end template system IV10 corresponds to that of end template system I7.

[0075] The template end panel positioning holes 7.6 of the top mold 7.1 and bottom mold 7.3 are symmetrical about the center of the template, and the positions of the template end panel positioning holes 7.6 of the top mold 7.1 and the bottom mold 7.3 are consistent, so that after the wedge plate is rotated 180 degrees, the positioning holes of the wedge plate end panels can still coincide with the positioning holes 7.6 of the top mold 7.1 and the bottom mold 7.3. Similarly, the template end panel positioning holes 7.6 of the side molds 7.2 of the two end template systems I are symmetrical about the center of the side mold, and the positions of the template end panel positioning holes 7.6 on the left and right side molds 7.2 of the two end template systems I are consistent, so that after the wedge plate is rotated 180 degrees, the positioning holes of the left and right end panels of the wedge plate can still coincide with the positions of the template end panel positioning holes 7.6 on the side molds 7.2. Similarly, the structural settings of the end template system IV10 correspond to those of the end template system I7.

[0076] The central formwork system II8 consists of the top formwork 8.1, two side formworks 8.2, and the bottom formwork 8.3. Each formwork unit is equipped with internal stiffening ribs 8.4. Central formwork end panels 8.5 are located at both ends of the formwork. Positioning holes 8.6 are provided on the end panels 8.5 on both sides of the central formwork system II8. Each of the two side formworks 8.2 has a pouring window 37, and the top formwork 8.1 has a pumping port 38. Similarly, the structure of the central formwork system III9 is ​​identical to that of the central formwork system II8.

[0077] Furthermore, the top mold 8.1 and bottom mold 8.3 of the end mold system II have the same arc length, and the end panels 8.5 of the top mold 8.1 and bottom mold 8.3 are symmetrical vertically. The side molds 8.2 of the two end mold systems II have the same arc length and are symmetrical horizontally. Similarly, the structure of the central mold system III9 is ​​the same as that of the central mold system II8.

[0078] In the central template system II8, the template end panel positioning holes 8.6 of the top mold 8.1 and bottom mold 8.3 are symmetrical about the template center, and the positions of the template end panel positioning holes 8.6 of the top mold 8.1 and the bottom mold 8.3 are consistent, so that after the wedge plate rotates 180 degrees, the positioning holes of the wedge plate end panels can still coincide with the positioning holes 8.6 of the top mold 8.1 and the bottom mold 8.3. Similarly, the template end panel positioning holes 8.6 of the two end template systems II's side molds 8.2 are symmetrical about the side mold center, and the positions of the template end panel positioning holes 7.6 on the left and right side molds II's side molds are consistent, so that after the wedge plate rotates 180 degrees, the positioning holes of the left and right end panels of the wedge plate can still coincide with the positions of the template end panel positioning holes 8.6 on the side molds 8.2. Similarly, the structural configuration of the end template system III9 is ​​consistent with that of the end template system II8.

[0079] like Figure 18 , Figure 19 As shown, the control method of the end template system I 7 is as follows: the top mold 7.1 of the end template system I is fixed to the end sliding frame I23 by the top mold support frame 33. The two side molds 7.2 of the end template system I are hinged to both sides of the top mold 7.1, and their opening and closing are controlled by the side mold opening and closing cylinder 35. One end of the side mold opening and closing cylinder 35 is hinged to the vertical rod at the end of the end sliding frame I23, and the other end is hinged to the template stiffening rib 7.4 inside the side mold 7.2 to control the side mold 7.2. The bottom mold 7.3 of the end template system I is provided with a bottom mold support frame 34. The lifting and lowering of the bottom mold 7.3 is controlled by the bottom mold adjusting cylinder 36. One end of the bottom mold adjusting cylinder 36 is fixed to the bottom of the end sliding frame I23, and the other end is connected to the bottom mold support frame 34. Similarly, the opening, closing, lifting and lowering method of the end template system IV10 is the same as that of the end template system I 7. Similarly, the opening, closing, and lifting methods of the central template system II8 and central template system III9 are the same as those of the end template system I7.

[0080] Wedge plate and rotating system D: See Figures 25-35 The wedge plate and rotating system D comprises wedge plate I11, wedge plate II12, wedge plate III13, wedge plate IV14, wedge plate V15, wedge plate VI16, outer ring of slewing bearing 39, inner gear ring of slewing bearing 40, wedge plate support device 41, wedge plate support bar 42, drive gear 43, drive motor and gearbox 44.

[0081] In this embodiment, a total of 6 sets of wedge plates and rotating systems D are provided. Specifically, one set is provided at the end of end template system I 7 near end template system II 8, one set is provided at each end of central template system II 8, one set is provided at each end of central template system III 9, and one set is provided at each end of central template system III 9. For details, see [details omitted]. Figure 3 , Figure 4 Wedge plate I11 is located at one end of end template system I7 near end template system II8, wedge plate II12 and wedge plate III13 are located at both ends of central template system II8, wedge plate IV14 and wedge plate V15 are located at both ends of central template system III9, and wedge plate VI16 is located at one end of end template system IV10 near central template system III9.

[0082] All wedge plates and the rotating system D are fixed to the sliding frame by the upper support bar 29 and the lower support bar 30 of the slewing bearing.

[0083] Slewing bearings are mature products on the market and can be divided into two main categories: toothless slewing bearings and toothed slewing bearings. Toothed slewing bearings can be further divided into external toothed slewing bearings and internal toothed slewing bearings. This embodiment uses an internal toothed slewing bearing. Using an internal toothed slewing bearing allows the drive motor to be placed inside the ring, increasing the space between the lining trolley template and the sliding frame, facilitating the workers to set up a workbench for positioning the lining trolley and installing the template. For ease of description, the internal toothed slewing bearing is divided into an outer ring 39 and an inner toothed ring 40. The outer ring 39 is fixed to the arc-shaped blocks of the upper support bar 29 and the lower support bar 30. Several wedge-shaped plate support devices 41 are installed on the inner toothed ring 40, and the wedge-shaped plate support devices 41 are hinged to the wedge plates via wedge-shaped plate support bars 42. The drive motor and gearbox 44 are fixed in the rotary motor mounting bracket 32 ​​at the center of the crossbar on the sliding frame. The drive motor and gearbox 44 are connected to the drive gear 43, which meshes with the inner gear ring 40 of the slewing bearing. When the wedge plate needs to be rotated, the drive motor and gearbox 44 drive the drive gear 43 to rotate, thereby driving the inner gear ring 40 of the slewing bearing to rotate, and through the wedge plate support device 41 and the wedge plate support bar 42, driving the wedge plate to rotate as a whole.

[0084] like Figure 27 , Figure 28As shown, the wedge plate support device 41 consists of a support shaft 41.1, a support plate 41.2, a fixing bolt 41.3, and a support baffle 41.4. The support plate 41.2 is the main load-bearing structure of the wedge plate support device 41 and is fixed to the inner gear ring 40 of the slewing bearing by the fixing bolt 41.3. The arc-shaped surface of the support plate 41.2 is a certain gap from the outer ring 39 of the slewing bearing so as not to rub against the outer ring 39 of the slewing bearing during rotation. Two support baffles 41.4 are fixed on the support plate 41.2. Two support shafts 41.1 are installed in the support baffles 41.4. Two wedge plate support bars 42 are inserted into the two support shafts 41.1 respectively. The wedge plate support bars 42 are then hinged to the wedge plates and support the wedge plates.

[0085] Furthermore, during the lining trolley pouring of the lining, the formwork needs to be opened, closed, and raised / lowered. At this time, the wedge plate also needs to open, close, and rise / lower along with the formwork. This necessitates releasing the constraint between the wedge plate and the wedge plate support device 41. Therefore, the wedge plate support strip 42 uses a support shaft 41.1 and a hinge to connect the wedge plate support device 41 and the wedge plate respectively, which can quickly release the constraint between the wedge plate and the wedge plate support device 41. To ensure the stability of the top plate, two side plates, and bottom plate of the wedge plate under the axial and hinged connections, each wedge plate uses at least two sets of wedge plate support devices 41, and each set of wedge plate support devices 41 is connected by at least two wedge plate support strips 42.

[0086] Furthermore, such as Figure 29 , Figure 31 , Figure 32 As shown, in this embodiment, the wedge plate I11 is also divided into a top template 11.3, a side template I11.4, a side template II 11.5, a bottom template 11.6, and an end panel 11.7. Positioning holes 11.8 for the end panel 11.7 are provided on both sides of the end panel 11.7. Inside the wedge plate I11, a total of 16 sets of fixing hinges 11.9 are provided, namely, 4 sets of fixing hinges 11.9 are provided on each of the top template 11.3, the side template I11.4, the side template II 11.5, and the bottom template 11.6.

[0087] Wedge plate I11, wedge plate II12, wedge plate III13, wedge plate IV14, wedge plate V15, and wedge plate VI16 are all fully circular plates, and their radius and segmentation method are consistent with the template system.

[0088] Furthermore, in the planar plane, one end of wedge plate I11 is perpendicular to the tunnel axis, and the other end has a certain angle. Both sides of wedge plate I11 are provided with end panels 11.7. The end connected to the end template system I 7 is perpendicular to the tunnel axis, and the end panel provided is the vertical end panel 11.7.1 of wedge plate I. The other side is connected to wedge plate II 12, and is the inclined end panel 11.7.2 of wedge plate I. The vertical end panel 11.7.1 is consistent with the end template end panel 7.5 and is in close contact with the end template end panel 7.5. Similarly, the end panels of wedge plate II 12, wedge plate III 13, wedge plate IV 14, wedge plate V 15, and wedge plate VI 16 are provided in the same manner as wedge plate I11.

[0089] Furthermore, such as Figure 1 , Figure 2 As shown in the schematic diagram, in order to make the lining trolley conform to the tunnel's curved axis, the wedge plates are respectively provided with long sides and short sides. For example, wedge plate I11 is provided with the long side 11.1 of wedge plate I and the short side 11.2 of wedge plate I. Similarly, wedge plates II12, III13, IV14, V15, and VI16 are all provided with long sides and short sides.

[0090] Furthermore, such as Figure 1 As shown, when constructing a straight section, the long and short sides of all adjacent wedge plates are connected. In this embodiment, the short side 11.2 of wedge plate I 11 is connected to the long side 12.1 of wedge plate II 12, the short side 13.2 of wedge plate III 13 is connected to the long side 14.1 of wedge plate IV 14, and the short side 15.2 of wedge plate V 15 is connected to the long side 16.1 of wedge plate VI 16, located on one side of the tunnel; the long side 11.1 of wedge plate I 11 is connected to the short side 12.2 of wedge plate II 12, the long side 13.1 of wedge plate III 13 is connected to the short side 14.2 of wedge plate IV 14, and the long side 15.1 of wedge plate V 15 is connected to the short side 16.2 of wedge plate VI 16, located on the other side of the tunnel, and the axis of the lining trolley template is a straight line.

[0091] Furthermore, such as Figure 2As shown, when entering a curve segment, the corresponding wedge plates are rotated 180 degrees so that the long sides of all wedge plates are located on the outer ring of the curve segment and the short sides of all wedge plates are located on the inner ring of the curve segment. In this embodiment, that is, the short side 11.2 of wedge plate I11 is connected to the short side 12.2 of wedge plate II12, the short side 13.2 of wedge plate III13 is connected to the short side 14.2 of wedge plate IV14, and the short side 15.2 of wedge plate V15 is connected to the wedge plate III12. The short side 16.2 of plate VI16 is connected and located in the inner ring of the curve segment; the long side 11.1 of wedge plate I11 is connected to the long side 12.1 of wedge plate II12, the long side 13.1 of wedge plate III13 is connected to the long side 14.1 of wedge plate IV14, and the long side 15.1 of wedge plate 15 is connected to the long side 16.1 of wedge plate 16. All of them are located in the outer ring of the curve segment. Therefore, the axis of the lining trolley template is a broken line that conforms to the curve shape of the line.

[0092] To ensure the lining trolley conforms to the tunnel's curved axis, the formula for calculating the long side of the wedge plate in the plane is as follows: In the formula, R is the radius of the tunnel line, r is the tunnel diameter (i.e., the radius of the lining trolley formwork), and L is the length of one section of the lining trolley formwork system. 短 The length of the short side of the wedge plate in the plane is given. At the construction site, the tunnel radius R and diameter r are design parameters. The length L of one section of the formwork system on the lining trolley is the length of the end formwork system I7, central formwork system II8, central formwork system III9, or end formwork system IV10 in this embodiment. For ease of manufacturing, the formwork system length of the lining trolley is the same, typically 3 meters. 短 This is the length of the short side of the wedge plate, which must be greater than the thickness of the end panels of the two wedge plates, as well as the length required for the installation of the wedge plate and the rotating system D.

[0093] Example 2 This embodiment provides a double-wedge plate needle beam lining trolley and construction method as described in Embodiment 1, which is divided into straight section construction and curved section construction.

[0094] The construction of straight sections includes the following steps: S1: Lining trolley support: In the traditional manner, the lining trolley is placed inside the tunnel to be lining. The needle beam front support 5 and the needle beam rear support 6 of the lining trolley are extended in the lining forward direction, so that the needle beam 4 supports the lining trolley.

[0095] S2: Offset frame system B, template system C, wedge plate and rotation system D (separation): like Figure 36As shown, all frame clutch cylinders 27 are extended, causing the end sliding frame I23, central sliding frame II24, central sliding frame III25, and end sliding frame IV26 to separate, thereby causing the end template system I7 - wedge plate I11, wedge plate II12 - central template system II8 - wedge plate III13, wedge plate IV14 - central template system III9 - and wedge plate V15, wedge plate VI16 - end template system IV10 to separate.

[0096] S3: Fixed wedge plate to wedge plate support device 41: Install all wedge plate support bars 42, fix the wedge plate to the wedge plate support device 41, and then disconnect the wedge plate end panel from the template system end panel so that the wedge plate can be freely rotated by the slewing bearing internal gear ring 40.

[0097] Rotate the wedge plate and adjust the position of its long and short sides: Start the drive motor and gearbox 44, so that the drive motor and gearbox 44 drive the internal gear ring 40 of the slewing bearing to rotate, thereby rotating the wedge plate until the long and short sides of the adjacent wedge plate system are connected to each other and the long and short sides are in a horizontal position.

[0098] S4: Offset frame system B, template system C, wedge plate and rotation system D, closure: Retract all frame clutch cylinders 27 to make the end sliding frame I23, central sliding frame II24, central sliding frame III25, and end sliding frame IV26 slide along the needle beam (4) until the wedge plate is completely closed, and multiple templates form a straight cylindrical structure adapted to the straight section of the tunnel.

[0099] Fixed wedge plate to template system C: Use bolts or U-shaped clamps to insert into the positioning holes of the wedge plate end panel and the template system end panel to fix the wedge plate to the template system C. Then remove the wedge plate support strip 42 to release the constraint between the wedge plate and the wedge plate support device 41, so that the wedge plate can open, close and rise with the template system C.

[0100] S5: Adjust the lining trolley to the position where the concrete is to be poured. Longitudinal positioning of the lining trolley; Start the front traction motor system 17, and drive the offset frame system B, template system C, wedge plate and rotation system D to the position where the concrete is to be poured through the traction rope 22.

[0101] Lining trolley centerline positioning: Start the frame offset cylinder 31-, and adjust the mold position of the offset frame system B, template system C, wedge plate and rotation system D on the needle beam 4 so that the offset frame system B, template system C, wedge plate and rotation system D are all centered.

[0102] Lining trolley elevation positioning: Adjust the front support 5 and the rear support 6 of the needle beam of the lining trolley in the lining forward direction, and adjust the height of the needle beam to the design elevation. This step is the same as the traditional elevation adjustment step.

[0103] Panel expanded: The extension bottom mold adjusting cylinder 36 first makes the bottom plate elevation reach the design height, and then unfolds the side mold opening and closing cylinder 35- to make the template system C and the wedge plate become a full circle.

[0104] End formwork sealing, waterstop installation, concrete pouring, needle beam forward movement, demolding: This step includes sealing the end formwork, installing waterstops, etc. After acceptance, concrete is poured, which is consistent with the concrete pouring of traditional needle beam lining trolleys. After the concrete reaches the demolding strength, the front support 5 of the needle beam in the lining forward direction of the lining trolley and the rear support 6 of the needle beam in the lining trolley are retracted so that the formwork system C supports the lining trolley. Then, the rear traction motor system 18 is started to move the needle beam 4 forward. The front support 5 of the needle beam in the lining forward direction of the lining trolley and the rear support 6 of the needle beam in the lining trolley are extended so that the needle beam 4 supports the lining trolley. The formwork can then be demolded, and the next cycle of construction can begin.

[0105] When transitioning from a straight section to a curved section during construction, the following steps are included: S1: Lining trolley support: The needle beam 5 in the forward direction of the lining trolley is extended, and the needle beam 6 in the rear direction of the lining trolley is extended, so that the needle beam 4 supports the lining trolley.

[0106] S2: Offset frame system B, template system C, wedge plate and rotation system D (separation): like Figure 36 As shown, all frame clutch cylinders 27 are extended, causing the end sliding frame I23, central sliding frame II24, central sliding frame III25, and end sliding frame IV26 to separate, thereby causing the end template system I7 - wedge plate I11, wedge plate II12 - central template system II8 - wedge plate III13, wedge plate IV14 - central template system III9 - and wedge plate V15, wedge plate VI16 - end template system IV10 to separate.

[0107] S3: Fixed wedge plate to wedge plate support device 41: Install all the wedge plate support strips 42, fix the wedge plates to the wedge plate support device 41, then release the connection between the wedge plate end panel and the formwork system end panel, so that the wedge plates can be driven to rotate freely by the inner gear ring 40 of the slewing bearing.

[0108] Rotate the wedge plates and adjust the positions of the long and short sides of the wedge plates: Start the drive motor and gearbox 44, so that the drive motor and gearbox 44 drive the inner gear ring 40 of the slewing bearing to rotate, driving the wedge plates to rotate until the long sides of adjacent wedge plate systems are connected to each other, the long sides are placed on the outer ring of the tunnel line curve, and the short sides are located on the inner ring of the tunnel line curve. The positions of the curved wedge plates and the formwork are shown in Figure 2 .

[0109] S4: Adjustment of offset frame system B, formwork system C, wedge plates and rotation system D: Release the oil pressure of all frame clutch oil cylinders 27 to make the frame clutch oil cylinders 27 in a free telescopic state, then start the frame offset oil cylinder 31-, adjust the offset frame system B, formwork system C, wedge plates and rotation system D, so that the inclined end panels of adjacent wedge plates are parallel to each other and in a directly opposite position.

[0110] Closing of offset frame system B, formwork system C, wedge plates and rotation system D: Retract all frame clutch oil cylinders 27 to make the end sliding frame I23, central sliding frame II24, central sliding frame III25 and end sliding frame IV26 slide along the needle beam 4 until the wedge plates are completely closed, and a plurality of formworks form a broken line structure adapted to the curved section of the tunnel.

[0111] S6: Fix the wedge plates to the formwork system C: Insert fasteners such as bolts or U-shaped clamps into the positioning holes of the wedge plate end panel and the formwork system end panel to fix the wedge plates to the formwork system C, then remove the wedge plate support strips 42, release the constraint between the wedge plates and the wedge plate support device 41, so that the wedge plates can open, close, rise and fall along with the formwork system C.

[0112] S7: Longitudinal positioning of the lining trolley: Start the front traction motor system 17, and drive the offset frame system B, formwork system C, wedge plates and rotation system D to the designed position where concrete is to be poured through the traction rope 22.

[0113] Center line positioning of the lining trolley: Start the frame offset oil cylinder 31, adjust the transverse positions of the offset frame system B, formwork system C, wedge plates and rotation system D on the needle beam 4, so that the offset frame system B, formwork system C, wedge plates and rotation system D are all centered.

[0114] Elevation positioning of the lining trolley Adjust the front support 5 and the rear support 6 of the needle beam of the lining trolley in the lining forward direction, and adjust the height of the needle beam to the design elevation. This step is the same as the traditional elevation adjustment step.

[0115] Panel Expand The extension bottom mold adjusting cylinder 36 first makes the bottom plate elevation reach the design height, and then unfolds the side mold opening and closing cylinder 35- to make the template system C and the wedge plate become a full circle.

[0116] End formwork sealing, waterstop installation, concrete pouring, needle beam forward movement, demolding: This step includes sealing the end formwork, installing waterstops, etc. After acceptance, concrete is poured, which is consistent with the concrete pouring of traditional needle beam lining trolleys. After the concrete reaches the demolding strength, the front support 5 of the needle beam in the lining forward direction of the lining trolley and the rear support 6 of the needle beam in the lining trolley are retracted so that the formwork system C supports the lining trolley. Then, the rear traction motor system 18 is started to move the needle beam 4 forward. The front support 5 of the needle beam in the lining forward direction of the lining trolley and the rear support 6 of the needle beam in the lining trolley are extended so that the needle beam 4 supports the lining trolley. The formwork can then be demolded, and the next cycle of construction can begin.

[0117] Finally, it should be noted that all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention, including but not limited to the following extended embodiments: 1.1 In this embodiment, the number of template systems is 4 sets. The number of 4 sets is determined by factors such as the total weight of the trolley, the on-site concrete pouring capacity, the standard panel width in the market, and traditional manual operation habits. Using fewer than 4 sets or more than 4 sets of template systems are results that can be obtained by ordinary people in the art without creative labor.

[0118] 1.3 In this embodiment, each set of template system consists of four parts: a bottom template, a top template, and two side templates. Dividing it into four parts facilitates demolding or template positioning operations, which is a conventional practice. In cases where the tunnel diameter is large, there may be more than four parts. The increase in other components caused by having more than four parts is also a result that can be obtained by those skilled in the art without any creative effort.

[0119] 1.4 In this embodiment, there are two frame clutch cylinders and two frame offset jacks. However, using more than two is a result that can be obtained by those skilled in the art without any creative effort.

[0120] 1.5 In this embodiment, the wedge template rotation is achieved by using a motor and an internal gear slewing bearing, using other mechanical means to achieve the wedge template rotation function. Through the wedge template rotation function, the straight section and small radius curve section of the full-circle needle beam trolley can be converted to each other. This is also a result that can be obtained by those skilled in the art by combining this embodiment with conventional technology.

[0121] 1.6 The number and location of the pouring windows, the number and location of the top pump pipes, the location and number of the panel stiffening ribs, and other functional components in this embodiment are all examples. Any new embodiments formed by changing the above-mentioned settings based on the needle beam lining trolley rotating wedge plate technology are also results that can be obtained by those skilled in the art without creative effort.

[0122] 1.7 For ease of manufacturing, the formwork system length of the lining trolley is the same, usually 3 meters. 3 meters is just a figure listed in this embodiment for the convenience of explanation, which is a common practice on the construction site. Any increase or decrease in the formwork system length based on 3 meters is the result that can be obtained by those skilled in the art without creative effort.

Claims

1. A double-wedge plate-type needle beam lining trolley, characterized in that, include: Needle beam (4); An offset frame system is mounted on a needle beam (4) and is pulled along the needle beam (4) by a traction device; The offset frame system includes multiple sets of sliding frames connected in sequence. A set of frame clutch cylinders (27) is provided between each pair of adjacent sliding frames. A slewing bearing upper support bar (29) is provided on the upper part of the side where the sliding frames are connected, and a slewing bearing lower support bar (30) is provided on the lower part, for fixing the wedge plate and the rotation system. A template system, wherein multiple template systems are fixed to the outside of the offset frame system; A wedge plate and a rotating system, the wedge plate and rotating system being mounted on an offset frame system for adjusting the gap between adjacent template systems; The wedge plate and rotating system include: A wedge plate is provided at the ends of two adjacent sliding frames, and the wedge plate is attached to the end of the template system; the wedge plate is a fully circular plate composed of a top template (11.3), side template I (11.4), side template II (11.5) and bottom template (11.6). The side of the fully circular plate that is attached to the end of the template system (C) is perpendicular to the tunnel axis, and the other side is set with an angle, thereby forming a wedge structure that is wide on one side and narrow on the other side; A rotating system, fixed to the end of a sliding frame, drives a wedge plate to rotate; the rotating system includes: Slewing bearing outer ring (39); The inner gear ring (40) of the slewing bearing is fixed inside the outer ring (39) of the slewing bearing and meshes with the drive device; A wedge plate support device (41) is connected between the outer ring (39) of the slewing bearing and the wedge plate.

2. The double-wedge plate needle beam lining trolley according to claim 1, characterized in that, The needle beam (4) is provided with a groove (21) on the left or right side to provide offset reaction force to the offset frame system.

3. The double-wedge plate needle beam lining trolley according to claim 1 or 2, characterized in that, The needle beam (4) is provided with a front support (5) and a tail support (6) at both ends. The front support (5) and the tail support (6) are used to support the overall weight of the lining trolley and the weight of the concrete when pouring the lining concrete.

4. The double-wedge plate needle beam lining trolley according to claim 3, characterized in that, The needle beam (4) has a front working platform (19) and a rear working platform (20) on its upper ends, and a traction device is installed on the two working platforms.

5. The double-wedge plate needle beam lining trolley according to claim 4, characterized in that, The traction device includes a front traction motor system (17) and a rear traction motor system (18) respectively set on the front working platform (19) and the rear working platform (20). The front traction motor system (17) and the rear traction motor system (18) are respectively connected to the front and rear ends of the offset frame system through traction ropes (22).

6. The double-wedge plate needle beam lining trolley according to claim 5, characterized in that, The front traction motor system (17) includes a roller and gear (17.1), which meshes with a longitudinal motor and gear (17.2); a traction rope (22) is wound on the roller and gear (17.1), and the traction rope (22) is connected to the offset frame system (B) through a traction rope fixing clamp (22.1).

7. The double-wedge plate needle beam lining trolley according to claim 1, characterized in that, A frame sliding trolley (28) is provided inside the sliding frame for moving on the needle beam (4). A frame offset cylinder (31) is provided inside one side of the sliding frame, and the end of the frame offset cylinder (31) contacts the outside of the needle beam (4).

8. The double-wedge plate needle beam lining trolley according to claim 7, characterized in that, Two sets of sliding frame diagonal braces (23.1) and sliding frame connecting rod braces (23.2) are provided on both sides of the sliding frame. A sliding frame reaction block (23.3) is provided at the intersection of the sliding frame diagonal braces (23.1) and the sliding frame connecting rod braces (23.2) to connect the sliding frame diagonal braces (23.1) and the sliding frame connecting rod braces (23.2) into a whole.

9. The double-wedge plate needle beam lining trolley according to claim 8, characterized in that, The frame offset cylinder (31) is set on the sliding frame reaction block (23.3) on one side of the needle beam (4) with the slide groove (21).

10. The double-wedge plate needle beam lining trolley according to claim 7, characterized in that, A rotary motor mounting bracket (32) is provided on one side connected to the sliding frame to fix the wedge plate and the rotary motor of the rotating system.

11. The double-wedge plate needle beam lining trolley according to claim 7, characterized in that, The frame sliding trolley (28) includes a frame-type vehicle body composed of a frame sliding trolley top plate (28.1), a frame sliding trolley side plate (28.2), and a frame sliding trolley bottom plate (28.8). The frame sliding trolley running wheels (28.4) are installed on the lower part of the frame-type vehicle body through the frame sliding trolley wheel plates (28.3). The frame sliding trolley sliding rollers (28.5) and arc-shaped support plates (28.6) are provided on the inner side of the frame-type vehicle body. The arc-shaped support plates (28.6) are fixed to the inner side of the frame-type vehicle body by support springs (28.7).

12. The double-wedge plate needle beam lining trolley according to claim 7, characterized in that, The sliding frame includes an end sliding frame I (23), a central sliding frame II (24), a central sliding frame III (25), and an end sliding frame IV (26) arranged sequentially from front to back.

13. The double-wedge plate needle beam lining trolley according to claim 7, characterized in that, The frame offset cylinder (31) is hinged to the bottom plate (31.3) at its end, and multiple pulleys (31.2) are provided on the bottom plate (31.3).

14. The double-wedge plate needle beam lining trolley according to claim 7, characterized in that, The template system comprises a fully circular structure consisting of a top mold (7.1), two side molds (7.2), and a bottom mold (7.3). A set of template systems is provided on the outside of each sliding frame. Each template system is equipped with template stiffening ribs (7.4) and end template end panels (7.5) are provided at both ends of the template. Each side mold (7.2) is equipped with a pouring window (37), and the top mold (7.1) is equipped with a pumping port (38).

15. The double-wedge plate needle beam lining trolley according to claim 1, characterized in that, The two sides of the full circular plate are provided with end panels (11.7), and the end panels (11.7) have positioning holes (11.8) on the upper end panels.

16. The double-wedge plate needle beam lining trolley according to claim 15, characterized in that, The formula for calculating the long side of the wedge plate on the plane is: In the formula, R is the radius of the tunnel line, r is the tunnel diameter (i.e., the radius of the lining trolley formwork), and L is the length of one section of the lining trolley formwork system. 短 This is the length of the short side of the wedge plate in the plane.

17. A construction method, characterized in that, The lining trolley as described in claim 1, 15 or 16 is used. Includes the following steps: S1: The lining trolley is placed inside the tunnel to be lining; S2: The offset frame system, template system, wedge plate, and rotation system are separated; S3: Adjust the wedge plate and rotation system to their initial positions; S4: Closure of the offset frame system, template system, wedge plate and rotation system; S5: Move the lining trolley to the location where the concrete is to be poured and pour the concrete, then proceed to the next cycle of construction.

18. The construction method according to claim 17, characterized in that, In step S5, when construction proceeds from a straight section to a curved section, the wedge plate is rotated until the long and long sides of adjacent wedge plates are connected to each other, and the long and long sides are placed on the outer ring of the tunnel curve, while the short and short sides are located on the inner ring of the tunnel curve.

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