Tunnel center ditch secondary filling template trolley and using method thereof

Abstract

The application discloses a tunnel center water ditch secondary filling formwork trolley and a using method thereof, and belongs to the technical field of tunnel center water ditch secondary concrete filling construction. The formwork trolley comprises a main support, four groups of lifting assemblies and a formwork component. One end of the main support is provided with a driving walking assembly, and the other end is provided with a driven walking assembly. The upper ends of the four groups of lifting assemblies are slidably connected with the main support, and the lower ends are connected with the formwork component. Each group of lifting assemblies is connected with the main support through a translation assembly. The lower longitudinal beam is an I-shaped steel, and the double-spliced I-shaped steel in the upper longitudinal beam and the lower longitudinal beam form a Chinese character-shaped structure, so that the formwork trolley has good structural strength and stability. After the strength of the concrete reaches the design strength, a handle is rotated, the left formwork and the right formwork are folded to the middle, so that the left formwork and the right formwork are separated from a secondary filling forming surface, and the demolding work can be completed. The demolding is simple, convenient and fast.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of tunnel center water ditch secondary filling formwork trolley and its using method, belong to tunnel center water ditch secondary concrete filling construction technical field. BACKGROUND

[0002] When the center water ditch of tunnel and construction industry is constructed, the prior art is to use small steel formwork, and the center water ditch is constructed by pouring concrete after the formwork is set up by manual. Manual setting up of formwork needs to consume a lot of manpower, and the construction speed is slow. When the formwork is set up, the straightness and flatness need to be calibrated and adjusted frequently, and the quality depends on the technical level of workers, and a large number of workers with high technical level are needed to work. The wages of workers with high technical level are high, which increases the construction cost. When the workers work, the concrete pouring time is long, the molding effect is poor, the tamping effect is poor, which affects the stability of the mold frame, and the engineering quality is poor. Therefore, the Chinese patent document with publication number CN205532629U discloses a full-hydraulic center water ditch formwork, which comprises a main frame system, a formwork system, a walking system, a hydraulic system and an electrical system. The main frame system is composed of a portal beam, a vertical column, a lower longitudinal beam and a pull rod. The lower longitudinal beam is laid with a track below, and a screw jack is arranged between the lower longitudinal beam and the track. The formwork system comprises a formwork and a retaining wall formwork. The formwork is supported on the concrete side wall by anti-floating screw rods. The formwork is connected with the retaining wall formwork by angle iron. The walking system comprises a main walking frame and an auxiliary walking frame. The hydraulic system comprises a formwork lifting oil cylinder, a jacking oil cylinder and a translation oil cylinder. All the oil cylinders are controlled by a hydraulic control cabinet. The electrical system is an electrical control cabinet. The present application has the advantages of fast construction speed, small labor input, good straightness and flatness of center water ditch concrete, good concrete forming effect and good tamping effect. However, the formwork has the problems of poor structural stability and difficult demolding when used for secondary concrete filling construction of tunnel center water ditch. SUMMARY

[0003] To solve the above technical problems, the present application provides a tunnel center water ditch secondary filling formwork trolley.

[0004] The present application is realized by the following technical solutions:

[0005] A tunnel center water ditch secondary filling formwork trolley comprises a main support, four groups of lifting assemblies and a formwork component. One end of the main support is provided with a driving walking assembly, and the other end is provided with a driven walking assembly. The upper ends of the four groups of lifting assemblies are slidably connected with the main support, and the lower ends are connected with the formwork component. Each group of lifting assemblies is connected with the main support by a translation assembly.

[0006] The main support comprises two horizontal beams arranged side by side, two upper longitudinal beams and two lower longitudinal beams, the upper longitudinal beams are connected with the lower longitudinal beams through a plurality of vertical beams, and the two lower longitudinal beams are connected through the two horizontal beams; the horizontal beams and the upper longitudinal beams are double-spliced I-beams, and gaps are left between the two I-beams in the horizontal beams.

[0007] The lifting assembly comprises a T-shaped sliding seat and a lifting hydraulic cylinder, the top of the T-shaped sliding seat is connected with the translation assembly, and the lifting hydraulic cylinder is connected with the bottom of the T-shaped sliding seat.

[0008] The template component comprises a left template, a right template and an adjusting assembly, and the right template is connected with the left template through the adjusting assembly.

[0009] The adjusting assembly comprises a screw sleeve, a left-handed threaded rod and a right-handed threaded rod, the left-handed threaded rod is connected with the screw sleeve, the right-handed threaded rod is connected with one end of the screw sleeve away from the left-handed threaded rod, and a handle is arranged on the outer circular surface of the screw sleeve.

[0010] The translation assembly comprises a translation hydraulic cylinder, one end of the translation hydraulic cylinder is connected with the main support, and the other end is connected with the lifting assembly.

[0011] The main driving walking assembly comprises a portal frame A and two main driving wheels installed at the bottom of the portal frame A, a rotating shaft is arranged between the two main driving wheels, and a speed reduction motor is installed on the rotating shaft; the driven walking assembly comprises a portal frame B and two driven wheels installed at the bottom of the portal frame B; the center line of the driven wheel is located below the center line of the main driving wheel.

[0012] The template trolley further comprises a hydraulic station, an eight-union manual reversing valve and a controller which are installed on the main support, the eight-union manual reversing valve is connected with the hydraulic station, the translation hydraulic cylinder and the lifting hydraulic cylinder through pipelines, and the controller is electrically connected with the speed reduction motor.

[0013] A use method of a tunnel center ditch secondary filling template trolley, comprising the following steps:

[0014] (1) according to the construction requirement, the template trolley is moved to the specified position on the tunnel center ditch through the controller;

[0015] (2) the eight-union manual reversing valve is operated, and the template component is moved to the directly above of the tunnel center ditch through the translation hydraulic cylinder;

[0016] (3) the eight-union manual reversing valve is operated, and the template component is lowered through the lifting hydraulic cylinder until the bottom surfaces of the left template and the right template are in contact with the bottom of the tunnel center ditch;

[0017] (4) the handle is rotated, the interval of the left template and the right template is finely adjusted, and the left template and the right template are limited through the anchor rods pre-buried in the primary filling concrete;

[0018] (5) Check the coordinates and elevations of the left and right templates, and complete the concrete pouring construction when the design parameters are reached;

[0019] (6) Complete the demolding construction after the strength of the concrete reaches the design strength.

[0020] The demolding construction in step (6) includes the following steps:

[0021] (1) Rotate the handle to make the left and right templates fold towards the middle, so that the left and right templates are separated from the secondary filling forming surface;

[0022] (2) Operate the eight-hand manual reversing valve to make the template component be lifted above the tunnel center ditch through the lifting hydraulic cylinder;

[0023] (3) Control the template trolley to move forward 12 meters to the next construction section through the controller.

[0024] The beneficial effects of the present application are that the lower longitudinal beam is an I-beam, the lower longitudinal beam and the double-spliced I-beam in the upper longitudinal beam form a Chinese character-shaped structure, the template trolley has good structural strength and stability. After the strength of the concrete reaches the design strength, the handle is rotated to make the left and right templates fold towards the middle, so that the left and right templates are separated from the secondary filling forming surface, and the demolding work is completed, which is simple, convenient and fast. By adjusting the assembly auxiliary positioning, the deformation amount of the left and right templates in the use process is reduced, and the appearance quality of the secondary filling forming surface is effectively guaranteed. In the width direction, the position of the template component can be adjusted through the translation hydraulic cylinder; in the height direction, the position of the template component can be adjusted through the lifting hydraulic cylinder; in the length direction, the position of the template component can be adjusted through the controller to control the forward and backward movement of the template trolley; the degree of automation and construction efficiency are high. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic view of the present application;

[0026] Figure 2 is a front view structural schematic view of the present application;

[0027] Figure 3 is a top view of Figure 2 ;

[0028] Figure 4 is a right view of Figure 2 ;

[0029] Figure 5 is a cross-sectional view of Figure 2 ;

[0030] Figure 6 is a sectional view structural schematic view of Figure 5 along A-A;

[0031] Figure 7 Structure diagram of the adjusting assembly of the application;

[0032] Figure 8 Control principle block diagram of the eight-hand-operated reversing valve of the application.

[0033] In the figure: 1-main support, 2-lifting assembly, 3-main walking assembly, 4-secondary filling forming surface, 5-formwork component, 6-driven walking assembly, 7-translation assembly, 8-cross beam, 9-upper longitudinal beam, 10-lower longitudinal beam, 11-vertical beam, 12-translation hydraulic cylinder, 13-T-shaped sliding seat, 14-flange plate, 15-wear plate, 16-lifting hydraulic cylinder, 17-concrete, 18-left formwork, 19-right formwork, 20-primary forming surface, 21-adjusting assembly, 22-sleeve, 23-left-hand threaded rod, 24-right-hand threaded rod, 25-handle. DETAILED DESCRIPTION

[0034] The technical solutions of the application are described further below, but the scope of protection is not limited to the description.

[0035] As Figures 1 to 8 shown, the tunnel center ditch secondary filling formwork trolley comprises a main support 1, four groups of lifting assemblies 2 and a formwork component 5, one end of the main support 1 is flange-connected with a main walking assembly 3, the other end is flange-connected with a driven walking assembly 6, the upper ends of the four groups of lifting assemblies 2 are slidingly connected with the main support 1, the lower ends are connected with the formwork component 5, and each group of lifting assemblies 2 is connected with the main support 1 through a translation assembly 7. In use, the two ends of the main support 1 are welded with flange plates 14, so as to facilitate the connection of the main walking assembly 3 and the driven walking assembly 6 with the main support 1 through bolts, nuts and the like.

[0036] The main support 1 comprises two cross beams 8, two upper longitudinal beams 9 and two lower longitudinal beams 10 arranged side by side, the upper longitudinal beams 9 are connected with the lower longitudinal beams 10 through a plurality of vertical beams 11, and the two lower longitudinal beams 10 are connected through the two cross beams 8; the cross beams 8 and the upper longitudinal beams 9 are double-spliced I-beams, and a gap is left between the two I-beams in the cross beam 8. In use, the lower longitudinal beams 10 are I-beams, and the lower longitudinal beams 10 and the double-spliced I-beams in the upper longitudinal beams 9 form a Chinese character structure, which has good structural strength and stability.

[0037] The lifting assembly 2 comprises a T-shaped slide 13 and a lifting hydraulic cylinder 16, the top of the T-shaped slide 13 is connected with the translation assembly 7, and the bottom of the T-shaped slide 13 is connected with the lifting hydraulic cylinder 16. In use, the upper part of the T-shaped slide 13 is slidably connected with the cross beam 8, and the bottom of the T-shaped slide 13 is connected with the lifting hydraulic cylinder 16 after passing through the gap between the two I-beams of the cross beam 8. The top surfaces of the two I-beams of the cross beam 8 are welded with wear-resistant plates 15, and the surface of the T-shaped slide 13 slidably connected with the cross beam 8 is also welded with wear-resistant plates 15. In the height direction, the position of the formwork assembly 5 can be adjusted by the lifting hydraulic cylinder 16.

[0038] The formwork assembly 5 comprises a left formwork 18, a right formwork 19 and an adjusting assembly 21, and the right formwork 19 is connected with the left formwork 18 through the adjusting assembly 21.

[0039] The adjusting assembly 21 comprises a screw sleeve 22, a left-handed threaded rod 23 and a right-handed threaded rod 24, the left-handed threaded rod 23 is connected with the screw sleeve 22, and the right-handed threaded rod 24 is connected with the end of the screw sleeve 22 away from the left-handed threaded rod 23; a handle 25 is welded on the outer circular surface of the screw sleeve 22. In use, rotating the handle 25 can make the left formwork 18 and the right formwork 19 simultaneously close to the middle or simultaneously expand to both sides.

[0040] The translation assembly 7 comprises a translation hydraulic cylinder 12, one end of the translation hydraulic cylinder 12 is connected with the main support 1, and the other end is connected with the lifting assembly 2. In the width direction, the position of the formwork assembly 5 can be adjusted by the translation hydraulic cylinder 12.

[0041] The main driving walking assembly 3 comprises a portal A and two main driving wheels installed at the bottom of the portal A, a rotating shaft is welded between the two main driving wheels, and a speed reduction motor is installed on the rotating shaft; the driven walking assembly 6 comprises a portal B and two driven wheels installed at the bottom of the portal B; the center line of the driven wheel is located below the center line of the main driving wheel. In use, the speed reduction motor can be forward and reverse rotated. The outer diameters of the main driving wheel and the driven wheel are equal, and there is a height difference of 200mm on the top surface of the center ditch of the tunnel before and after the secondary filling of concrete, so the distance between the center line of the driven wheel and the center line of the main driving wheel in the vertical direction is 200mm.

[0042] The formwork trolley further comprises a hydraulic station, an eight-connection manual reversing valve and a controller installed on the main support 1, the eight-connection manual reversing valve is connected with the hydraulic station, the translation hydraulic cylinder 12 and the lifting hydraulic cylinder 16 through pipelines, and the controller is electrically connected with the speed reduction motor.

[0043] A use method of a tunnel center ditch secondary filling formwork trolley, comprising the following steps:

[0044] (1) According to the construction requirement, the formwork trolley is moved to the designated position on the tunnel center ditch through the controller; after the formwork trolley is moved to the designated position, the driving wheel is located on the surface on which the secondary concrete filling has been completed, and the driven wheel is located on the surface on which the secondary concrete filling has not been completed.

[0045] (2) The eight-hand-operated reversing valve is operated, and the formwork component 5 is moved to the directly above of the tunnel center ditch through the translation hydraulic cylinder 12;

[0046] (3) The eight-hand-operated reversing valve is operated, and the formwork component 5 is lowered through the lifting hydraulic cylinder 16 until the bottom surfaces of the left formwork 18 and the right formwork 19 are in contact with the bottom of the tunnel center ditch;

[0047] (4) The handle 25 is rotated to finely adjust the interval of the left formwork 18 and the right formwork 19, and the left formwork 18 and the right formwork 19 are limited through the anchor rod embedded in the primary filling concrete;

[0048] (5) The coordinates and the elevation of the left formwork 18 and the right formwork 19 are checked, and the concrete 17 pouring construction is completed after the design parameters are reached; in use, the end plate is installed on the end of the formwork component 5 far from the driving walking assembly 3 to seal, and the concrete 17 is poured in the cavity surrounded by the primary forming surface 20, the left formwork 18, the right formwork 19 and the end plate.

[0049] (6) After the strength of the concrete 17 reaches the design strength, the demolding construction is completed.

[0050] The demolding construction in the step (6) comprises the following steps:

[0051] (1) The handle 25 is rotated to make the left formwork 18 and the right formwork 19 fold to the middle, so that the left formwork 18 and the right formwork 19 are separated from the secondary filling forming surface 4;

[0052] (2) The eight-hand-operated reversing valve is operated, and the formwork component 5 is lifted above the tunnel center ditch through the lifting hydraulic cylinder 16;

[0053] (3) The formwork trolley is controlled to move forward 12 meters to the next construction section through the controller.

[0054] In summary, the lower longitudinal beam 10 is an I-beam, and the lower longitudinal beam 10 and the double-spliced I-beam in the upper longitudinal beam 9 form a Chinese character-shaped structure, which has good structural strength and stability. After the strength of the concrete 17 reaches the design strength, the handle 25 is rotated to make the left formwork 18 and the right formwork 19 fold towards the middle, so that the left formwork 18 and the right formwork 19 are separated from the secondary filling forming surface 4, and the demolding work is completed. The demolding is simple, convenient and fast. Through the auxiliary positioning of the adjusting assembly 21, the deformation amount of the left formwork 18 and the right formwork 19 in the use process is reduced, and the appearance quality of the secondary filling forming surface 4 is effectively guaranteed. In the width direction, the position of the formwork component 5 can be adjusted through the translation hydraulic cylinder 12; in the height direction, the position of the formwork component 5 can be adjusted through the lifting hydraulic cylinder 16; in the length direction, the position of the formwork component 5 can be adjusted by controlling the forward and backward movement of the formwork trolley through the controller; and the degree of automation and construction efficiency are high.

Claims

1. A tunnel center water ditch secondary filling formwork trolley, characterized in that: The utility model relates to a template trolley, which comprises a main support (1), four groups of lifting assemblies (2) and a template component (5), one end of the main support (1) is provided with a driving walking assembly (3), the other end is provided with a driven walking assembly (6), the upper ends of the four groups of lifting assemblies (2) are slidably connected with the main support (1), the lower ends are connected with the template component (5), and each group of lifting assemblies (2) is connected with the main support (1) through a translation assembly (7); The main support (1) comprises two horizontal beams (8), two upper longitudinal beams (9) and two lower longitudinal beams (10) arranged side by side, the upper longitudinal beams (9) are connected with the lower longitudinal beams (10) through a plurality of vertical beams (11), and the two lower longitudinal beams (10) are connected through the two horizontal beams (8); the horizontal beams (8) and the upper longitudinal beams (9) are both double-spliced I-beams, and gaps are left between the two I-beams in the horizontal beams (8); The lower longitudinal beams (10) are I-beams, and the lower longitudinal beams (10) and the double-spliced I-beams in the upper longitudinal beams (9) form a Chinese character shape structure; The lifting assembly (2) comprises a T-shaped sliding seat (13) and a lifting hydraulic cylinder (16), the top of the T-shaped sliding seat (13) is connected with the translation assembly (7), and the bottom of the T-shaped sliding seat (13) is connected with the lifting hydraulic cylinder (16); The upper part of the T-shaped sliding seat (13) is slidably connected with the horizontal beam (8), the bottom of the T-shaped sliding seat (13) is connected with the lifting hydraulic cylinder (16) after passing through the gap between the two I-beams in the horizontal beam (8), wear-resistant plates (15) are welded on the top surfaces of the two I-beams in the horizontal beam (8), and wear-resistant plates (15) are also welded on the surfaces of the T-shaped sliding seat (13) slidably connected with the horizontal beam (8); The template component (5) comprises a left template (18), a right template (19) and an adjusting assembly (21), the right template (19) is connected with the left template (18) through the adjusting assembly (21); The adjusting assembly (21) comprises a screw sleeve (22), a left-hand threaded rod (23) and a right-hand threaded rod (24), the left-hand threaded rod (23) is connected with the screw sleeve (22), and the right-hand threaded rod (24) is connected with one end of the screw sleeve (22) away from the left-hand threaded rod (23); a handle (25) is arranged on the outer circular surface of the screw sleeve (22).

2. The tunnel center canal secondary filling formwork trolley according to claim 1, characterized in that: The translation assembly (7) comprises a translation hydraulic cylinder (12), one end of the translation hydraulic cylinder (12) is connected with the main support (1), and the other end is connected with the lifting assembly (2).

3. The tunnel center canal secondary filling formwork trolley according to claim 1, characterized in that: The driving walking assembly (3) comprises a portal frame A and two driving wheels installed at the bottom of the portal frame A, a rotating shaft is arranged between the two driving wheels, and a speed reducer motor is installed on the rotating shaft; the driven walking assembly (6) comprises a portal frame B and two driven wheels installed at the bottom of the portal frame B; the center line of the driven wheel is located below the center line of the driving wheel.

4. The tunnel center canal secondary filling formwork trolley of claim 1, wherein: The template trolley further comprises a hydraulic station, an eight-connection manual reversing valve and a controller which are installed on the main support (1), the eight-connection manual reversing valve is connected with the hydraulic station, the translation hydraulic cylinder (12) and the lifting hydraulic cylinder (16) through pipelines, and the controller is electrically connected with the speed reducer motor.

5. A method of using a tunnel center canal secondary filling form carriage according to any one of claims 1 to 4, characterized in that: The utility model relates to a template trolley, which comprises a main support (1), four groups of lifting assemblies (2) and a template component (5), one end of the main support (1) is provided with a driving walking assembly (3), the other end is provided with a driven walking assembly (6), the upper ends of the four groups of lifting assemblies (2) are slidably connected with the main support (1), the lower ends are connected with the template component (5), and each group of lifting assemblies (2) is connected with the main support (1) through a translation assembly (7); (1) according to the construction needs, the template trolley is moved to the specified position on the tunnel center ditch through the controller; (2) Operating the eight-hand manual reversing valve, moving the template component (5) to the top of the tunnel center ditch by the translation hydraulic cylinder (12); (3) Operating the eight-hand manual reversing valve, lowering the template component (5) by the lifting hydraulic cylinder (16) until the bottom surface of the left template (18) and the right template (19) contacts the bottom of the tunnel center ditch; (4) Rotating the handle (25) to fine-tune the distance between the left template (18) and the right template (19), and limiting the left template (18) and the right template (19) by the anchor rod embedded in the primary filling concrete; (5) Checking the coordinates and elevation of the left template (18) and the right template (19), and completing the concrete (17) pouring construction after reaching the design parameters; (6) After the strength of the concrete (17) reaches the design strength, completing the demolding construction; The demolding construction in the step (6) includes the following steps: (1) Rotating the handle (25) to make the left template (18) and the right template (19) fold to the middle, and making the left template (18) and the right template (19) separate from the secondary filling forming surface (4); (2) Operating the eight-hand manual reversing valve, raising the template component (5) above the tunnel center ditch by the lifting hydraulic cylinder (16); (3) Controlling the template trolley to move forward 12 meters by the controller to reach the next construction section.

Images