Formwork trolley for tunnel curve section lining

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By designing a template trolley for curved sections of tunnels, and adopting a hydraulic device and sliding base structure, the problems of high difficulty and low efficiency in the construction of circular curve sections of large-span tunnels were solved, realizing fully mechanized construction and reducing construction risks and costs.

CN223608557UActive Publication Date: 2025-11-28CCCC (KUNMING) CONSTR CO LTD

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Patent Information

Application Number: CN202520104831.7
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2025-01-16
Publication Date: 2025-11-28
Estimated Expiration: 2035-01-16

AI Technical Summary

Technical Problem

The construction of lining sections on the curves of long-span tunnels is difficult. Conventional lining trolleys cannot turn flexibly on curves, which increases construction risks and costs, and also results in low construction efficiency.

Method used

A template trolley for curved sections of tunnels is designed, employing various hydraulic devices and a sliding base structure to achieve trolley steering and mechanized construction on curved sections. The side and top formworks are detached in stages through a fixed steel frame and hydraulic devices, reducing construction difficulty and safety risks.

Benefits of technology

It has enabled fully mechanized construction of curved sections of tunnels, reducing construction difficulty and safety risks, meeting tunnel construction clearance requirements, and improving construction efficiency.

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Abstract

The utility model provides a formwork trolley for tunnel curve section lining, which comprises a portal frame, a plurality of bottom beams arranged below the portal frame, a slidable sliding base arranged below the bottom beams, a longitudinal hydraulic device arranged between the sliding base and the bottom beams, transverse moving devices arranged on two sides of the sliding base, and supporting legs arranged between the transverse moving devices and the sliding base. A lifting device is arranged above the transverse moving devices, an upper cross beam is further arranged on the top of the portal frame, a plurality of transverse hydraulic devices are arranged on the two sides of the upper portion of the upper cross beam, the portal frame comprises a plurality of cross beam rods, and a plurality of inclined supporting rods are arranged on the two sides of each cross beam rod. And the sliding base below the bottom beam is connected with the pulley and the sliding block between the bottom beam, so that friction is reduced, and meanwhile, the torque of the sliding base relative to the bottom beam in the moving process is further prevented.

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Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel lining construction technical field especially a template trolley for tunnel curve section lining. BACKGROUND

[0002] At present, lining trolley is generally made for the lining construction of large-span tunnel straight section, but for the construction of part of curve section, if support construction lining is adopted, the construction risk and difficulty will be increased due to large span and small curve radius, the support installation and dismounting process cost and construction period are increased, if the conventional rail self-propelled lining trolley is adopted, it cannot be moved flexibly in the curve section, and the conventional trolley is only suitable for straight section, and it is difficult to meet the structural construction needs of sharp curve section, therefore, the special-shaped template trolley is provided to solve the asymmetric construction difficulty of large-span tunnel circular curve section lining. SUMMARY

[0003] The utility model discloses a template trolley for tunnel curve section lining, which solves the problems of large-span tunnel circular curve section lining asymmetric construction difficulty and low construction efficiency in large-span tunnel circular curve section construction.

[0004] To solve the above technical problems, the utility model adopts the technical scheme of a template trolley for tunnel curve section lining, which comprises a portal, a plurality of bottom beams are arranged below the portal, a slidable sliding base is arranged below the bottom beam, a longitudinal hydraulic device is arranged between the sliding base and the bottom beam;

[0005] A horizontal moving device is arranged on the two sides of the sliding base, a supporting leg is arranged between the horizontal moving device and the sliding base, and a lifting device is arranged above the horizontal moving device.

[0006] The top of the portal is further provided with an upper cross beam, a plurality of transverse hydraulic devices are arranged on the two sides above the upper cross beam.

[0007] The portal comprises a plurality of cross beam rods, a plurality of inclined struts are arranged on the two sides of the cross beam rod, a top template is further arranged on the top of the portal, a side template is further arranged on the two sides of the portal, a plurality of shaped steel frames are arranged between the side template and the portal, and the shaped steel frames are arranged at the front end of the transverse hydraulic device.

[0008] In the preferred scheme, through holes are arranged on the two sides of the bottom beam, the lifting device passes through the through holes and abuts against the ground.

[0009] The lifting device comprises a lifting support, a fifth push rod is arranged below the lifting support, the bottom of the fifth push rod is connected with the horizontal moving device, and the fifth push rod is used for lifting the trolley.

[0010] In the preferred solution, the transverse moving device comprises a transverse moving base, the upper portion of the transverse moving base is connected with the fifth push rod, the lower portion of the transverse moving base is provided with a slidable walking base, the fourth push rod is arranged between the walking base and the transverse moving base, and the fourth push rod is used for pushing the walking base.

[0011] In the preferred solution, the two sides of the lower portion of the transverse moving base are provided with transverse moving clamping blocks, the two sides of the inner portion of the walking base are provided with walking clamping grooves, and the transverse moving clamping blocks are arranged in the walking clamping grooves.

[0012] In the preferred solution, the sliding base comprises a plurality of sliding seats, the sliding rails are arranged between the sliding seats and the bottom beam, and the connecting rods are arranged between the sliding seats.

[0013] The longitudinal hydraulic device comprises a longitudinal support, the second push rod is arranged between the longitudinal support and one of the sliding seats, and the second push rod is used for controlling the transverse movement of the trolley.

[0014] In the preferred solution, the transverse hydraulic device comprises a third push rod, the third push rod is arranged at the two sides of the top portion of the portal frame, the front end of the third push rod is provided with a jacking seat, and the jacking seat is connected with the shaped steel frame.

[0015] The transverse hydraulic device is used for pushing the shaped steel frame so that the side formwork is stressed.

[0016] The utility model provides a kind of formwork trolley for tunnel curve section lining, with the following beneficial effects: it can realize the full mechanization of construction, the transverse moving device on the enlarged base at both ends can realize the steering of trolley on curve section;The pulley and slider part connection between the sliding base below bottom beam and bottom beam reduces friction and further prevents the torque of sliding base relative to bottom beam during moving;Through the reasonable design of trolley formwork shape and symmetry, better meet the construction structure and tunnel construction limit requirement;Using shaped steel frame and hydraulic device, realize the step-by-step separation of side mould and top mould, reduce construction safety risk and construction difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described in connection with the drawings and examples:

[0018] Figure 1 It is the front view of the trolley of the utility model;

[0019] Figure 2 It is the side view of the trolley of the utility model;

[0020] Figure 3 It is the local view of longitudinal hydraulic device of the utility model;

[0021] Figure 4 It is the local view of transverse moving device of the utility model;

[0022] Figure 5 It is the local view of walking base of the utility model.

[0023] In the diagram: 1. Bottom beam; 101. Through hole; 2. Gantry frame; 201. Diagonal brace; 202. Crossbeam; 3. Top template; 4. Fixed steel frame; 5. Side template; 6. Sliding base; 601. Slide rail; 602. Connecting rod; 603. First push rod; 604. Longitudinal hydraulic device; 7. Second push rod; 701. Longitudinal support; 702. Lateral hydraulic device; 8. Third push rod; 801. Top push seat; 802. Traveling base; 9. Traveling slot; 901. Lateral movement device; 10. Fourth push rod; 1001. Lateral movement base; 1002. Lateral movement block; 1003. Lateral movement guide wheel; 1004. Lifting device; 11. Lifting support; 1101. Fifth push rod; 1102. Upper crossbeam; 12. Support leg; 13. Detailed Implementation

[0024] Example 1

[0025] like Figures 1-5 As shown, a template trolley for lining curved sections of tunnels includes a gantry 2, a plurality of bottom beams 1 are provided below the gantry 2, a sliding base 6 is provided below the bottom beams 1, and a longitudinal hydraulic device 7 is provided between the sliding base 6 and the bottom beams 1.

[0026] The sliding base 6 is provided with transverse moving devices 10 on both sides, and a support leg 13 is provided between the transverse moving device 10 and the sliding base 6. A lifting device 11 is provided above the transverse moving device 10.

[0027] The top of the gantry 2 is also provided with an upper crossbeam 12, and multiple horizontal hydraulic devices 8 are provided on both sides above the upper crossbeam 12;

[0028] The gantry 2 includes multiple crossbeams 202, with multiple diagonal braces 201 on both sides of the crossbeams 202. The top of the gantry 2 is also provided with a top template 3, and the sides of the gantry 2 are also provided with side templates 5. Multiple fixed steel frames 4 are provided between the side templates 5 and the gantry 2. The fixed steel frames 4 are arranged at the front end of the transverse hydraulic device 8.

[0029] In the preferred embodiment, the bottom beam 1 has through holes 101 on both sides, and the lower part of the lifting device 11 passes through the through holes 101 and abuts against the ground;

[0030] The lifting device 11 includes a lifting support 1101. A fifth push rod 1102 is provided below the lifting support 1101. The bottom of the fifth push rod 1102 is connected to the transverse movement device 10. The fifth push rod 1102 is used for lifting the trolley.

[0031] In a preferred embodiment, the lateral movement device 10 includes a lateral movement base 1002, the upper part of which is connected to a fifth push rod 1102, and a slidable walking base 9 is provided below the lateral movement base 1002. A fourth push rod 1001 is provided between the walking base 9 and the lateral movement base 1002, and the fourth push rod 1001 is used to push the walking base 9.

[0032] In the preferred embodiment, two lateral moving clamping blocks 1003 are arranged below the lateral moving base 1002, and two lateral moving clamping grooves 901 are arranged inside the walking base 9, and the lateral moving clamping blocks 1003 are arranged in the lateral moving clamping grooves 901.

[0033] In the preferred embodiment, the sliding base 6 comprises a plurality of sliding seats 602, sliding rails 601 are arranged between the sliding seats 602 and the bottom beam 1, and connecting rods 603 are arranged between the sliding seats 602.

[0034] The longitudinal hydraulic device 7 comprises a longitudinal support 702, and a second push rod 702 is arranged between the longitudinal support 702 and one of the sliding seats 602, and the second push rod 702 is used to control the transverse movement of the trolley.

[0035] In the preferred embodiment, the transverse hydraulic device 8 comprises a third push rod 801, the third push rod 801 is arranged on both sides of the top of the portal frame 2, a top pushing seat 802 is arranged at the front end of the third push rod 801, and the top pushing seat 802 is connected with the shaped steel frame 4.

[0036] The transverse hydraulic device 8 is used to push the shaped steel frame 4 to make the side formwork 5 bear stress.

[0037] The detailed operation process of the formwork trolley for tunnel curve segment lining is as follows:

[0038] The top of the portal frame 2 is further provided with an upper cross beam 12, a plurality of transverse hydraulic devices 8 are arranged on both sides of the upper cross beam 12, the transverse hydraulic device 8 comprises a third push rod 801, the third push rod 801 is arranged on both sides of the top of the portal frame 2, a top pushing seat 802 is arranged at the front end of the third push rod 801, and the top pushing seat 802 is connected with the shaped steel frame 4, and the transverse hydraulic device 8 is used to push the shaped steel frame 4 to make the side formwork 5 bear stress.

[0039] Two sliding bases 6 are arranged below the bottom beam 1 and connected by a rigid connecting rod 603, and one of the sliding bases 6 is connected with the middle part of the bottom beam by a longitudinal hydraulic device 7, a transverse hydraulic device 8 is arranged on the inner side of the portal frame above both ends of the bottom beam and on the top of the portal frame to control the trolley to move away from the side formwork, and a base 9 provided with a transverse moving and lifting device 11 is arranged at the end of the bottom beam 1.

[0040] The top formwork 3 of the trolley is arc-shaped in the vertical direction and the longitudinal direction, the side formwork 5 is in the shape of a cylinder as a whole, the radii of the two arc-shaped sides are different, the side formwork 5 is connected with the top formwork 3 at a position above the springing line, and the connection is achieved by using bolts.

[0041] The shaped steel frame 4 is composed of square steels in the transverse and longitudinal directions, and is connected with the transverse hydraulic device 8 arranged on the inner side of the portal frame above both ends of the bottom beam 1 and on the top of the portal frame 2 and the side formwork 5 by using bolts, and is connected with the gantry structure by using supporting lead screws.

[0042] The connection of the bottom beam 1 and the sliding base 6 is that the reverse buckling clamping groove at the top of the sliding base is connected with the steel plate at the bottom of the bottom beam, the sliding block part that can slide relative to each other is arranged at the joint, and the pulley 1004 is arranged in the sliding base under the bottom beam 1.

[0043] The horizontal moving device 10 on the walking base 9 is mainly composed of a box-shaped component connected with the upper lifting device 11 and a fourth push rod 1001, the pulley 1004 is arranged in the box-shaped component, the roller shaft is fixed at the lower part of the box-shaped component and falls on the walking base 9, the fourth push rod 1001 passes through the box-shaped component in the direction of the roller, is hinged to one side of the box-shaped component, and the other side is connected with the base; the upper part of the lifting device 11 is connected with the side of the portal frame by using bolts, and the lower part is connected with the horizontal moving device 10 by passing through the bottom beam 1.

[0044] The template unfolding drawing is a fan shape, and when the template is processed, the radius of curvature should be attached to the longitudinal radius of curvature of the tunnel, the corresponding length is configured according to the position of the lateral support screw rod, so as to control the forming of the tunnel. Demoulding construction: when the side template 5 is demoulded, the horizontal hydraulic device 8 on the portal frame 2 inside and the upper cross beam 12 above the bottom beam 1 at both ends is used to exert force, the side template 5 is demoulded through the shaping steel frame 4, and then the whole trolley is lowered by the lifting device 11 on the walking base 9 at the end of the bottom beam 1, and the top template 3 is demoulded.

[0045] When the trolley walks to the right, the running lifting device 11 lowers the trolley, the sliding base 6 falls to the ground, the supporting leg 13 is removed, the running lifting device 11 lifts the walking base 9 at both ends, the second push rod 701 is compressed, the trolley moves to the right relative to the two sliding bases 6, the second push rod 701 stops running before reaching the limit, the walking base 9 is lowered, the trolley is lifted, the sliding base 6 is separated from the ground, the walking base 9 is lengthened, the two sliding bases 6 move to the right relative to the trolley, and then the above steps are repeated to complete the advancing process. Meanwhile, steering needs to be completed in the curve segment, when the walking base 9 falls to the ground and the sliding base 6 falls to the ground, the horizontal moving device 10 is operated, the fourth push rod 1001 of the trolley is contracted or lengthened to steer, the operation is stopped when the limit is reached, the sliding base 6 falls, the walking base 9 is lifted, the horizontal moving device 10 returns to the initial position, the walking base 9 falls to the ground, the sliding base 6 falls to the ground, and the horizontal moving device 10 is repeatedly operated to complete the steering. The side template 5 and the top template 3 should be in the contracted state during the walking and steering process.

[0046] The above-mentioned embodiments are only preferred technical solutions of the present application, and should not be regarded as a limitation of the present application. The protection scope of the present application should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features recorded in the claims. That is, the equivalent replacement improvement within this range is also within the protection scope of the present application.

Claims

1. A form carriage for tunnel curve segment lining, characterized in that: Including portal frame (2), the bottom of portal frame (2) is equipped with multiple bottom beams (1), the bottom of bottom beam (1) is equipped with slidable sliding base (6), longitudinal hydraulic device (7) is equipped between sliding base (6) and bottom beam (1); The both sides of sliding base (6) are equipped with horizontal moving device (10), and the horizontal moving device (10) is equipped with support leg (13) between sliding base (6), and the top of horizontal moving device (10) is equipped with lifting device (11); The top of portal frame (2) is further equipped with upper cross beam (12), and the top of upper cross beam (12) is equipped with multiple longitudinal hydraulic devices (8) on both sides; Portal frame (2) includes multiple cross beam rods (202), the both sides of cross beam rod (202) are equipped with multiple inclined struts (201), the top of portal frame (2) is further equipped with top formwork (3), the both sides of portal frame (2) are further equipped with side formwork (5), and multiple shaped steel frames (4) are arranged between side formwork (5) and portal frame (2), and the shaped steel frame (4) is arranged at the front end of longitudinal hydraulic device (8).

2. The form carriage for tunnel curve segment lining according to claim 1, characterized in that: The both sides of bottom beam (1) are equipped with through hole (101), and the bottom of lifting device (11) passes through through hole (101) and abuts against the ground; Lifting device (11) includes lifting support (1101), the bottom of lifting support (1101) is equipped with fifth push rod (1102), the bottom of fifth push rod (1102) is connected with horizontal moving device (10), and fifth push rod (1102) is used for lifting trolley.

3. The form carriage for tunnel curve segment lining according to claim 2, characterized in that: Horizontal moving device (10) includes horizontal moving base (1002), the top of horizontal moving base (1002) is connected with fifth push rod (1102), the bottom of horizontal moving base (1002) is equipped with slidable walking base (9), and fourth push rod (1001) is arranged between walking base (9) and horizontal moving base (1002), and fourth push rod (1001) is used for pushing walking base (9).

4. The form carriage for tunnel curve segment lining according to claim 3, characterized in that: The both sides of horizontal moving base (1002) below are equipped with horizontal moving clamping block (1003), and the both sides of walking base (9) inside are equipped with walking clamping groove (901), and horizontal moving clamping block (1003) is arranged in walking clamping groove (901).

5. The form carriage for tunnel curve segment lining according to claim 1, characterized in that: Sliding base (6) includes multiple sliding seats (602), sliding rail (601) is arranged between sliding seat (602) and bottom beam (1), and connecting rod (603) is arranged between sliding seats (602); Longitudinal hydraulic device (7) includes longitudinal support (702), second push rod (701) is arranged between longitudinal support (702) and one of sliding seats (602), and second push rod (701) is used for controlling trolley horizontal moving.

6. The form carriage for tunnel curve segment lining according to claim 1, characterized in that: Transverse hydraulic device (8) includes third push rod (801), third push rod (801) is arranged at the both sides of the top of portal frame (2), and top pushing seat (802) is arranged at the front end of third push rod (801), and top pushing seat (802) is connected with shaped steel frame (4); Transverse hydraulic device (8) is used for pushing shaped steel frame (4) to make side formwork (5) bear stress.