Walking type intersection formwork trolley for tunnel secondary lining construction

Abstract

The utility model relates to the technical field of tunnel secondary lining construction equipment, and discloses a walking type intersection formwork trolley for tunnel secondary lining construction. A longitudinal track is longitudinally arranged on the ground of a cross intersection of a tunnel in a penetrating mode, and a pair of transverse tracks are oppositely arranged on the two sides of the cross intersection. A cross-shaped formwork trolley is arranged on the longitudinal track; a trolley positioning center is arranged in the center of the upper end of the top frame, and four triangular combined formworks and butt joint ends of a cross-shaped formwork trolley are oppositely arranged in the transverse direction and the longitudinal direction of the trolley positioning center. A pair of longitudinal formwork trolleys are correspondingly arranged above the longitudinal rails; a pair of transverse formwork trolleys is arranged above the pair of transverse rails; according to the utility model, the longitudinal track walks and is positioned at the intersection of the tunnel for construction, the procedure of manually building temporary cross templates is eliminated, the temporary cross templates do not need to be dismantled after construction, and the efficiency is improved; the butt joint seam of the formwork is tight, the sealing performance is high, and the secondary lining construction quality is guaranteed; rapid switching of multiple types of intersections is achieved through the modular design, and the construction risk is reduced.

Description

Technical Field

[0001] This utility model relates to a tunnel secondary lining formwork trolley, and more particularly to a mobile intersection formwork trolley for tunnel secondary lining construction. Background Technology

[0002] Currently, traditional secondary lining formwork trolleys are unidirectional lining construction trolleys. When constructing tunnels with cross or T-junctions, workers typically erect fixed cross-shaped formwork on-site. After construction, ordinary secondary lining formwork trolleys are used for connection, and the overlap joints are sealed by construction workers. After completion, the trolleys need to be dismantled, affecting the tunnel construction progress. Furthermore, the formwork materials are prone to mismatches in length and width, leading to uneven joints, poor sealing between the cross-shaped formwork and the formwork trolley, unstable quality of cross-shaped formwork construction, difficulty in ensuring worker safety, and failure to meet the design requirements of secondary lining construction, thus affecting the construction progress and overall construction quality. In view of these reasons, a mobile cross-shaped formwork trolley for tunnel secondary lining construction is proposed. Utility Model Content

[0003] The purpose of this invention is to overcome the challenges posed by the traditional method of manually erecting fixed cross-shaped formwork on-site for tunnels with cross or T-shaped intersections. This formwork, which requires dismantling after construction, hinders the tunnel's progress. Furthermore, mismatched formwork materials and installation methods lead to uneven joints, poor sealing, and unstable formwork quality, failing to meet the design requirements for secondary lining construction. This invention provides a mobile cross-shaped formwork trolley for tunnel secondary lining construction. This mobile cross-shaped formwork trolley is positioned at the tunnel intersection via a track, eliminating the need for dismantling after construction and accelerating the process. The stable docking and operation of the formwork trolley and the mobile cross-shaped formwork trolley ensure a tight and airtight joint. It maximizes the construction accuracy of the tunnel cross-section design in intersecting directions. This invention avoids the complex operation of manually erecting fixed cross-shaped formwork on-site, simplifying and speeding up construction, ensuring worker safety, and guaranteeing overall construction quality. It is suitable for secondary lining construction of cross, T, and L-shaped tunnel intersections.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: A new energy power supply cable-free maintenance trolley is composed of: a cross-shaped template trolley, a trolley positioning center, a longitudinal opening template, a transverse opening template, a gantry, a top frame, a traveling mechanism, a longitudinal track, a transverse track, a longitudinal template trolley, a traveling device, and a transverse template trolley; a longitudinal track is longitudinally installed on the ground at the cross intersection of the tunnel, and a pair of transverse tracks are arranged opposite each other on both sides of the cross intersection; a cross-shaped template trolley is installed on the longitudinal track, and a pair of gantry is set at both ends of the cross-shaped template trolley; two pairs of traveling mechanisms are symmetrically arranged between the two sides of the pair of gantry and the longitudinal track; a working platform is set on the top of the pair of gantry, and a top frame is set on the working platform; a trolley positioning center is set at the center of the upper end of the top frame; four triangular combination templates of the cross-shaped template trolley are arranged opposite each other in the transverse and longitudinal directions of the trolley positioning center.

[0005] The positioning centers of the four intersecting triangular trolleys are set at 90-degree angles. A pair of horizontal opening templates are set for the two horizontal templates, and a pair of vertical opening templates are set for the two vertical templates. The axial direction of the pair of vertical opening templates and the pair of horizontal opening templates is set as an arch, and the outer edges of the pair of vertical opening templates and the pair of horizontal opening templates are reserved as docking ends.

[0006] A pair of longitudinal template trolleys are set above the longitudinal rails at both ends of the cross-shaped template trolley. A traveling device is set between the bottom sides of the pair of longitudinal template trolleys and the pair of longitudinal rails. The templates of the pair of longitudinal template trolleys are set at the docking ends of the pair of longitudinal templates.

[0007] A pair of transverse template trolleys are set above a pair of transverse rails. A traveling device is set between the bottom sides of the pair of transverse template trolleys and a pair of longitudinal rails. The templates of the pair of transverse template trolleys are set at the docking ends of the pair of transverse templates.

[0008] When a tunnel is designed as a cross intersection, four connecting ends of the cross-shaped formwork trolley are equipped with corresponding formwork trolleys; when a tunnel is designed as a T-intersection, three connecting ends of the cross-shaped formwork trolley are equipped with corresponding formwork trolleys; when a tunnel is designed as an L-intersection, the longitudinal end of the cross-shaped formwork trolley has a reserved transverse connecting end, while the L-intersection has two connecting ends, one longitudinal and one transverse, with corresponding formwork trolleys installed at each of the two connecting ends; the cross-shaped formwork trolley is suitable for the secondary lining construction of cross intersections, T-intersections, and L-intersections of tunnels.

[0009] Beneficial effects: The mobile intersection formwork trolley of this utility model is positioned at the tunnel intersection via a track for construction. No dismantling is required after construction, accelerating the tunnel construction progress. The connection and operation between the formwork trolley and the mobile intersection formwork trolley are stable, with small joints and tight sealing to ensure the airtightness of the joints. It maximizes the construction accuracy of the tunnel cross-section design in intersecting directions. This utility model avoids the complex operation of manually erecting fixed cross-shaped formwork on-site, making construction simple and quick, ensuring the safety of construction personnel, and guaranteeing overall construction quality. It can meet the secondary lining construction requirements of cross-shaped, T-shaped, and L-shaped tunnel intersections. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings:

[0011] Figure 1 This is a schematic diagram of the overall assembly structure;

[0012] Figure 2 yes Figure 1 A schematic diagram of the side view structure;

[0013] Figure 3 yes Figure 1 A top-view structural diagram;

[0014] Figure 4 yes Figure 2 A schematic diagram of the vertical template trolley's state structure during docking;

[0015] Figure 5 yes Figure 3 Schematic diagram of the horizontal and vertical template trolley structure for docking;

[0016] Figure 1 , 2 1. Cross-shaped template trolley 1. Trolley positioning center 2. Longitudinal opening template 3. Transverse opening template 4. Gantry 5. Top frame 6. Traveling mechanism 7. Longitudinal track 8. Transverse track 9. Longitudinal template trolley 10. Traveling device 10-1. Transverse template trolley 11. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0018] A longitudinal track 8 is set longitudinally through the ground at the tunnel intersection, and a pair of transverse tracks 9 are set opposite each other on both sides of the intersection. A cross-shaped template trolley 1 is set on the longitudinal track 8. A pair of gantry frames 5 are set at both ends of the cross-shaped template trolley 1. Two pairs of traveling mechanisms 7 are symmetrically set between the two gantry frames 5 and the longitudinal track 8. A working platform is set on the top of the pair of gantry frames 5. A top frame 6 is set on the working platform. A trolley positioning center 2 is set at the center of the upper end of the top frame 6. Four triangular combination templates of the cross-shaped template trolley 1 are set opposite each other in the four directions of transverse and longitudinal directions of the trolley positioning center 2.

[0019] The four intersecting triangular trolley positioning centers 2 are each set at a 90-degree angle. The two horizontal templates are set with a pair of horizontal opening templates 4, and the two vertical templates are set with a pair of vertical opening templates 3. The axial direction of the pair of vertical opening templates 3 and the pair of horizontal opening templates 4 is set as an arch, and the outer edges of the pair of vertical opening templates 3 and the pair of horizontal opening templates 4 are reserved as docking ends.

[0020] A pair of longitudinal template trolleys 10 are set above the longitudinal rails 8 at both ends of the cross-shaped template trolley 1. A traveling device 10-1 is set between the bottom sides of the pair of longitudinal template trolleys 10 and the pair of longitudinal rails 8. The templates of the pair of longitudinal template trolleys 10 are set at the docking ends of the pair of longitudinal templates 3.

[0021] A pair of transverse template trolleys 11 are set above a pair of transverse rails 9. A traveling device 10-1 is set between the bottom sides of the pair of transverse template trolleys 11 and a pair of longitudinal rails 8. The templates of the pair of transverse template trolleys 11 are set at the docking ends of a pair of transverse templates 4.

[0022] When the tunnel is set as a cross intersection, the four docking ends of the cross-shaped formwork trolley 1 are equipped with corresponding formwork trolleys; when the tunnel is set as a T-intersection, the three docking ends of the cross-shaped formwork trolley 1 are equipped with corresponding formwork trolleys; when the tunnel is set as an L-shaped intersection, the longitudinal end of the cross-shaped formwork trolley 1 has a reserved transverse docking end, and the L-shaped intersection is set with two docking ends, one longitudinal and one transverse, with corresponding formwork trolleys set at each of the two docking ends; the cross-shaped formwork trolley 1 is suitable for the secondary lining construction of cross intersections, T-intersections, and L-shaped intersections of tunnels.

Claims

1. A mobile formwork trolley for tunnel secondary lining construction, comprising: a cross-shaped formwork trolley (1), a trolley positioning center (2), longitudinal formwork (3), transverse formwork (4), a gantry (5), a top frame (6), a traveling mechanism (7), a longitudinal track (8), a transverse track (9), a longitudinal formwork trolley (10), a traveling device (10-1), and a transverse formwork trolley (11); characterized in that: A longitudinal track (8) is set longitudinally through the ground at the cross intersection of the tunnel, and a pair of transverse tracks (9) are set opposite each other on both sides of the cross intersection; a cross-shaped template trolley (1) is set on the longitudinal track (8), and a pair of gantry frames (5) are set at both ends of the cross-shaped template trolley (1). Two pairs of traveling mechanisms (7) are symmetrically set between the two sides of the pair of gantry frames (5) and the longitudinal track (8); a working platform is set on the top of the pair of gantry frames (5), and a top frame (6) is set on the top of the working platform. A trolley positioning center (2) is set at the center of the top of the top frame (6), and four triangular combination templates of the cross-shaped template trolley (1) are set opposite each other in the transverse and longitudinal directions of the trolley positioning center (2).

2. The mobile intersection formwork trolley for tunnel secondary lining construction according to claim 1, characterized in that: The four intersecting triangular trolley positioning centers (2) are set at 90-degree angles respectively. The two horizontal templates are set with a pair of horizontal opening templates (4), and the two vertical templates are set with a pair of vertical opening templates (3). The axial direction of the pair of vertical opening templates (3) and the pair of horizontal opening templates (4) is set as an arch. The outer edges of the pair of vertical opening templates (3) and the pair of horizontal opening templates (4) are reserved as docking ends respectively.

3. The mobile intersection formwork trolley for tunnel secondary lining construction according to claim 1, characterized in that: A pair of longitudinal template trolleys (10) are set above the longitudinal rails (8) at both ends of the cross-shaped template trolley (1). A walking device (10-1) is set between the bottom sides of the pair of longitudinal template trolleys (10) and the pair of longitudinal rails (8). The templates of the pair of longitudinal template trolleys (10) are set at the docking ends of the pair of longitudinal templates (3). A pair of horizontal template trolleys (11) are set above a pair of horizontal rails (9). A walking device (10-1) is set between the bottom sides of the pair of horizontal template trolleys (11) and a pair of longitudinal rails (8). The templates of the pair of horizontal template trolleys (11) are set at the docking ends of a pair of horizontal templates (4).

4. The mobile intersection formwork trolley for tunnel secondary lining construction according to claim 1, characterized in that: When the tunnel is set as a cross intersection, the four docking ends of the cross-shaped template trolley (1) are equipped with corresponding template trolleys; when the tunnel is set as a T-intersection, the three docking ends of the cross-shaped template trolley (1) are equipped with corresponding template trolleys; when the tunnel is set as an L-shaped intersection, the longitudinal end of the cross-shaped template trolley (1) is reserved with a transverse docking end, and the L-shaped intersection is set with two docking ends in the longitudinal and transverse directions, and the two docking ends are equipped with corresponding template trolleys respectively; the cross-shaped template trolley (1) is suitable for the secondary lining construction of the cross intersection, T-intersection and L-shaped intersection of the tunnel respectively.

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