A construction method for rotating a concrete secondary lining formwork trolley in a tunnel

Abstract

The invention discloses a construction method for a concrete second lining formwork trolley capable of rotating in a tunnel, comprising the following steps: installing a foldable concrete second lining formwork trolley on a linear track; driving a linear travel system on the foldable concrete second lining formwork trolley to make it run into a tunnel section to be rotated; folding the foldable concrete second lining formwork trolley; installing a supporting device on the concrete second lining formwork trolley, and supporting the folded concrete second lining formwork trolley through the supporting device to be separated from the linear track; installing an arc guide rail; respectively installing at least two rotating wheels on two lower longitudinal beams of the folded concrete second lining formwork trolley, and two adjacent rotating wheels are arranged at intervals; retracting the supporting device to make the rotating wheel fall onto the arc track; installing a driving device to drive the rotating wheel to move, so that the folded concrete second lining formwork trolley moves along the arc track to the direction to be constructed.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction, and in particular relates to a construction method and a device for a rotating concrete secondary lining formwork trolley in a tunnel. Background Art

[0002] At present, the lines of tunnels are straight or gentle curves, and rigid concrete secondary lining formwork trolleys can meet their requirements. However, when constructing a line with a large angle or even a super-large angle of 90°, or two lines with different cross-sections, rigid formwork trolleys cannot be used for construction, and can only be disassembled and reassembled in the tunnel to meet their requirements. The space in the tunnel is small, large hoisting equipment cannot be used, work efficiency is low, operation is difficult, and the safety risk of operators is high. Summary of the invention

[0003] To this end, the present invention provides a construction method and device that can rotate a concrete secondary lining formwork trolley in a tunnel, so as to solve the problem in the prior art that the concrete secondary lining formwork trolley can only be disassembled and reassembled in the tunnel to meet the requirements when the construction route contains a turning, resulting in low construction efficiency and increased construction risks.

[0004] In order to achieve the above object, the present invention provides the following technical solution: a construction method for rotating a concrete secondary lining formwork trolley in a tunnel, comprising the following steps:

[0005] 1) Install the linear track;

[0006] 2) Install the foldable concrete secondary lining formwork trolley on the linear track;

[0007] 3) Drive the linear travel system on the foldable concrete secondary lining formwork trolley to move it into the tunnel section to be rotated;

[0008] 4) Fold the foldable concrete secondary lining formwork trolley;

[0009] 5) Install a support device on the concrete secondary lining formwork trolley, and support the folded concrete secondary lining formwork trolley through the support device until it is off the linear track;

[0010] 6) Install the arc guide rail;

[0011] 7) At least two rotating wheels are respectively installed on the two lower longitudinal beams of the folded concrete secondary lining formwork trolley, and two adjacent rotating wheels are arranged at intervals;

[0012] 8) Fold up the supporting device to make the rotating wheel fall onto the arc track;

[0013] 9) Install the driving device to drive the rotating wheel to move, so that the folded concrete secondary lining formwork trolley moves along the arc track to the direction to be constructed;

[0014] 10) Start the supporting device, remove the rotating wheel, and install the linear track along the direction to be constructed;

[0015] 11) Fold up the supporting device so that the linear travel system on the folded concrete secondary lining formwork trolley falls into the linear track;

[0016] 12) Unfold the folded concrete secondary lining formwork trolley.

[0017] A construction method for a line with a relatively large turning angle, even up to 90°, and a line construction line with two lines of different cross-section sizes. The rotary concrete secondary lining formwork trolley can rotate freely in the tunnel to adapt to the continuous changes in the tunnel line and section. It can overlap with the tunnel line at 360° without dead ends to complete the concrete construction of the tunnel. When encountering a turning route, there is no need to disassemble a large number of formwork trolleys. It can be quickly put into place in a narrow tunnel, saving a lot of manpower and material resources, reducing construction procedures, improving construction efficiency, and increasing construction safety.

[0018] Furthermore, before construction, all obstacles in the tunnel to be constructed need to be removed in advance.

[0019] Furthermore, the supporting device includes installing a plurality of supporting jacks on the lower longitudinal beam of the concrete second lining formwork trolley, and supporting the concrete second lining formwork trolley to leave the linear track through the supporting jacks.

[0020] Further, installing the drive device comprises the following steps:

[0021] Install the rail clamp, which is installed on the arc track;

[0022] Install the rotary propulsion cylinder, install one end of the propulsion cylinder on the track clamp and the other end on the rotating wheel.

[0023] Furthermore, the folded concrete secondary lining formwork trolley can be pushed multiple times by the driving device to reach a specified position, and the driving device is removed after reaching the specified position.

[0024] Furthermore, the multiple propulsion includes the following steps: after the propulsion cylinder is pushed for a certain distance, the track clamp is removed and the propulsion cylinder is retracted; the track clamp is installed when the propulsion cylinder is in the retracted state; and repeated propulsion is performed.

[0025] A device capable of rotating a concrete secondary lining formwork trolley in a tunnel, comprising:

[0026] A rotating wheel, the rotating wheel being arranged on the lower longitudinal beam of the foldable rotating concrete secondary lining formwork trolley; an arc track, the rotating wheel being able to move on the arc track; and

[0027] A driving device is provided, wherein the driving device can drive the rotating wheel to rotate.

[0028] By arranging rotating wheels and arc tracks at the bottom of the foldable rotating concrete secondary lining formwork trolley, the rotating wheels can be driven to rotate under the drive of a driving device, thereby rotating the formwork trolley to a specified construction direction.

[0029] Furthermore, the driving device includes a track clamp and a propulsion cylinder; one end of the propulsion cylinder is connected to the rotating wheel, and the other end is connected to the track clamp; the track clamp is arranged on the circular arc track.

[0030] Furthermore, the arc track structure is a circular structure.

[0031] Furthermore, the circular arc track is a circular track composed of more than two arc structures.

[0032] The present invention has the following advantages: the construction method of the rotary concrete secondary lining formwork trolley can rotate freely in the tunnel to adapt to the continuous changes of the tunnel line and section, and complete the concrete construction of the tunnel by overlapping with the tunnel line at 360° without dead angles. When encountering a turning route, there is no need to disassemble a large number of formwork trolleys, and it can be quickly put into place in a narrow tunnel, saving a lot of manpower and material resources, reducing construction procedures, improving construction efficiency, and increasing construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0034] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0035] Figure 1 It is a schematic diagram of the installation structure of a device capable of rotating a concrete secondary lining formwork trolley in a tunnel provided by a specific embodiment of the present invention;

[0036] Figure 2 It is a schematic diagram of the circular arc track installation structure of a device capable of rotating a concrete secondary lining formwork trolley in a tunnel, provided by a specific embodiment of the present invention;

[0037] Figure 3 It is a schematic diagram of the unfolded structure of a concrete secondary lining formwork trolley provided in a specific embodiment of the present invention;

[0038] Figure 4 It is a schematic diagram of the folding structure of a concrete secondary lining formwork trolley provided in a specific embodiment of the present invention.

[0039] In the figure: 1-folding arch plate; 2-lower arch plate; 3-gantry vertical cylinder; 4-hand chain hoist; 7-top arch plate cylinder; 10-top arch plate; 11-upper longitudinal beam of upper platform; 12-side arch plate A; 13-system exchange support jack; 14-auxiliary gantry support jack; 15-lap arch plate; 16-reinforcement jack; 17-folding arch plate cylinder; 18-arch plate fixing jack; 19-auxiliary gantry column grille; 20 -lower arch plate cylinder; 21-auxiliary gantry crossbeam; 22-upper platform widening beam A; 23-upper grid platform widening column; 24-auxiliary group cylinder; 25-side arch plate B; 26-upper platform grid widening beam B; 27-top arch plate column; 28-rail; 29-straight travel system; 30-rotating wheel; 31-rotating propulsion cylinder; 32-rail clamp; 33-lower longitudinal beam; 34-arc track. DETAILED DESCRIPTION

[0040] The technical scheme of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but it will be understood by those skilled in the art that the following described embodiments are part of embodiments of the present invention, rather than all embodiments, and are only used to illustrate the present invention, and should not be considered as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention. If specific conditions are not specified in the embodiments, they are carried out according to normal conditions or conditions recommended by the manufacturer. If the manufacturer is not specified in the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Example 1

[0044] A construction method for a rotating concrete secondary lining formwork trolley in a tunnel provided in Example 1 of the present invention is provided. Figure 1 and Figure 2 As shown, the following steps are included:

[0045] 1) Install the linear track 28;

[0046] 2) Install the foldable concrete secondary lining formwork trolley on the linear track 28;

[0047] 3) driving the linear travel system 29 on the foldable concrete secondary lining formwork trolley to move it into the tunnel section to be rotated;

[0048] 4) Fold the foldable concrete secondary lining formwork trolley; the folding method is the existing folding method, and the specific folding process is as follows: from the ground of the completed upper section of the concrete secondary lining tunnel, lay two tracks 28 equidistant from the linear walking wheels of the rotary concrete secondary lining formwork trolley to the rotating tunnel section; remove all arch plate fixing jacks 18; pull the hand chain hoist 4 to demould the overlapping arch plate 15 and fold it to be attached to the folding arch plate 1 and fixed; retract the folding arch plate cylinder 17 to demould the folding arch plate 1; retract the lower arch plate cylinder 20 to demould the lower arch plate 2; remove the reinforcement jack 16, retract the auxiliary gantry support jack 14, the system exchange support jack 13; retract the gantry vertical cylinder 3; demould the top arch plate 10, the side arch plate A12, and the side arch plate B25; drive the linear walking system 29 to make the rotary concrete secondary lining formwork trolley reach the rotating tunnel section Inside; remove the auxiliary gantry column grille 19; pull the hand chain hoist 4 to fold the folding arch plate 1 and hang it on the lower arch plate 2 and fix it; remove the two ends of the upper longitudinal beam 11 of the upper platform; remove the auxiliary gantry crossbeam 21; extend the auxiliary group cylinder 24 to support the side arch plate B12; remove the upper platform widening beam A22, the upper grid platform widening column 23, the upper platform widening beam B26, and the bolt connection at one end of the top arch plate column 27; lift the top arch plate cylinder 7 and extend the auxiliary group cylinder 24 at the same time to separate the top arch plate 10, the side arch plate A12, the side arch plate B25 and all the connecting parts; remove the upper platform widening beam A22, the upper grid platform widening column 23, the upper platform widening beam B26, and the top arch plate column 27; recycle the top arch plate cylinder 7 and the auxiliary group cylinder 24 to make all the arch plates close to the gantry and fix them with the hand chain hoist, please refer to Figure 4 The formwork trolley is shown folded.

[0049] 5) Install a supporting device on the concrete secondary lining formwork trolley, and use the supporting device to support the folded concrete secondary lining formwork trolley until it is out of the linear track 28; the specific process is as follows: lift the vertical cylinder 3 of the gantry to support the rotary concrete secondary lining formwork trolley; rotate out the system exchange support jack 13 and support it to the ground; retract the vertical cylinder 3 of the gantry to make the linear travel system 29 out of the track 28.

[0050] 6) Install the arc-shaped guide rail 34; before installing the arc-shaped rail, the linear rail can be removed.

[0051] 7) At least two rotating wheels 30 are respectively installed on the two lower longitudinal beams of the folded concrete secondary lining formwork trolley, and two adjacent rotating wheels 30 are arranged at intervals; the rotating wheels are installed in conjunction with the arc track.

[0052] 8) Fold up the supporting device to make the rotating wheel fall onto the arc-shaped track 34;

[0053] 9) Install a driving device to drive the rotating wheel 30 to move so that the folded concrete secondary lining formwork trolley moves along the arc track to the direction to be constructed; installing the driving device includes the following steps: installing the track clamp 32, which is installed on the arc track; installing the rotating propulsion cylinder 31, installing one end of the propulsion cylinder 31 on the track clamp 32, and the other end on the rotating wheel; the folded concrete secondary lining formwork trolley can be pushed multiple times by the driving device to reach the specified position, and the driving device is removed after reaching the specified position; multiple pushes include the following steps: after the propulsion cylinder pushes a certain distance, the track clamp 32 is removed and the propulsion cylinder 31 is retracted; the track clamp 32 is installed when the propulsion cylinder is in the retracted state; and repeated pushes are performed until the specified position is reached.

[0054] 10) Start the supporting device, remove the rotating wheel, and install the linear track along the direction to be constructed;

[0055] 11) Fold up the supporting device so that the linear travel system 29 on the folded concrete secondary lining formwork trolley falls into the linear track;

[0056] 12) After unfolding the folded concrete secondary lining formwork trolley, please refer to Figure 3 Schematic diagram of the template trolley. When the rotary concrete secondary lining template trolley reaches the designated position and needs to carry out the next cycle of concrete secondary lining, all template opening processes and recycling reverse operations are completed.

[0057] It should be noted that before construction, all obstacles in the tunnel to be constructed need to be removed in advance.

[0058] A construction method for a line with a relatively large turning angle, even up to 90°, and a line construction line with two lines of different cross-section sizes. The rotary concrete secondary lining formwork trolley can rotate freely in the tunnel to adapt to the continuous changes in the tunnel line and section. It can overlap with the tunnel line at 360° without dead ends to complete the concrete construction of the tunnel. When encountering a turning route, there is no need to disassemble a large number of formwork trolleys. It can be quickly put into place in a narrow tunnel, saving a lot of manpower and material resources, reducing construction procedures, improving construction efficiency, and increasing construction safety.

[0059] Example 2

[0060] Embodiment 2 of the present invention provides a device capable of rotating a concrete secondary lining formwork trolley in a tunnel, see Figure 2 and Figure 3 As shown, it includes: a rotating wheel 30, which is arranged on the lower longitudinal beam of the foldable rotating concrete second lining formwork trolley; an arc track 34, on which the rotating wheel 30 can move; and a driving device, which can drive the rotating wheel 30 to rotate.

[0061] The driving device includes a track clamp 32 and a propulsion cylinder 31 ; one end of the propulsion cylinder is connected to the rotating wheel 30 , and the other end is connected to the track clamp 32 ; the track clamp 32 is arranged on the circular track 34 .

[0062] The arc track 34 has a circular structure.

[0063] When in use, a supporting device is installed on the lower longitudinal beam 33 at the bottom of the foldable formwork trolley, and the formwork trolley is lifted up to make the linear travel system at the bottom of the formwork trolley detach from the linear track, and the linear travel system is folded up. Then, a rotating wheel is installed on the lower longitudinal beam 33 at the bottom of the foldable formwork trolley. Multiple rotating wheels can be installed according to the situation so that the foldable formwork trolley can be moved smoothly. In this embodiment, four rotating wheels are installed at equal intervals. Ordinary track pulleys can be used for the rotating wheels. After the rotating wheels are installed, an arc track is installed directly below the rotating wheels, and then the supporting device is folded up. The rotating wheels fall on the arc track, and the driving device is installed to drive the rotating wheels to move, thereby achieving the purpose of turning the foldable formwork trolley. After rotating to the specified position, the supporting device is raised, the driving device and the arc track are removed, the linear track is installed at the specified position, the linear travel system is rotated out, and the supporting device is folded up so that the linear travel system falls on the linear track to complete the turn in the tunnel.

[0064] Example 3

[0065] Embodiment 3 of the present invention provides a device capable of rotating a concrete secondary lining formwork trolley in a tunnel, see Figure 2 and Figure 3 As shown, it includes: a rotating wheel 30, which is arranged on the lower longitudinal beam of the foldable rotating concrete second lining formwork trolley; an arc track 34, on which the rotating wheel 30 can move; and a driving device, which can drive the rotating wheel 30 to rotate.

[0066] The driving device includes a track clamp 32 and a propulsion cylinder 31 ; one end of the propulsion cylinder is connected to the rotating wheel 30 , and the other end is connected to the track clamp 32 ; the track clamp 32 is arranged on the circular track 34 .

[0067] The arc track 34 includes two sections of arc structures that are arranged in cooperation. The arc track is not installed in a circle, but only installed for the distance required to rotate, thereby reducing construction time and construction materials.

[0068] The present invention is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the protection scope of the present invention.

Claims

1. A construction method for rotating a concrete secondary lining formwork trolley in a tunnel, It is characterized in that The following steps are involved: 1) Install the linear track; 2) Install the foldable concrete secondary lining formwork trolley on the linear track; 3) Drive the linear travel system on the foldable concrete secondary lining formwork trolley to move it into the tunnel section to be rotated; 4) Fold the foldable concrete secondary lining formwork trolley, and the folding process is as follows: lay two steel rails (28) from the ground of the completed upper section of the concrete secondary lining tunnel, equidistant from the linear running wheels of the rotary concrete secondary lining formwork trolley, to the rotating tunnel section; remove all the arch plate fixing jacks (18); pull the hand chain hoist (4) to demould the overlapping arch plate (15) and fold it to attach it to the folding arch plate (1) and fix it; Retract the folding arch plate cylinder (17) to demould the folding arch plate (1); retract the lower arch plate cylinder (20) to demould the lower arch plate (2); remove the reinforcement jack (16), retract the auxiliary portal support jack (14) and the system exchange support jack (13); retract the portal frame vertical cylinder (3); demould the top arch plate (10), the side arch plate A (12) and the side arch plate B (25); drive the linear travel system (29) to make the rotary concrete secondary lining formwork trolley reach the rotating tunnel section; remove the auxiliary portal frame column grille (19); pull the hand chain hoist (4) to fold the folding arch plate (1) and hang it on the lower arch plate (2) and fix it; remove the upper longitudinal beam (11) of the upper trolley; remove the auxiliary portal frame cross beam (21); extend the auxiliary The auxiliary cylinder (24) is used to support the side arch plate B (25); the bolts at one end of the upper platform widening beam A (22), the upper grid platform widening column (23), the upper platform grid widening beam B (26), and the top arch plate column (27) are removed; the top arch plate cylinder (7) is lifted and the auxiliary cylinder (24) is extended at the same time to separate the top arch plate (10), the side arch plate A (12), and the side arch plate B (25) from all connecting parts; the upper platform widening beam A (22), the upper grid platform widening column (23), the upper platform grid widening beam B (26), and the top arch plate column (27) are removed; the top arch plate cylinder (7) and the auxiliary cylinder (24) are retracted to make all the arch plates close to the door frame and fixed by the hand chain hoist (4); 5) Install a support device on the concrete secondary lining formwork trolley, and support the folded concrete secondary lining formwork trolley through the support device until it is off the linear track; 6) Install the arc guide rail; 7) At least two rotating wheels are respectively installed on the two lower longitudinal beams of the folded concrete secondary lining formwork trolley, and two adjacent rotating wheels are arranged at intervals; 8) Fold up the supporting device to make the rotating wheel fall onto the arc track; 9) Install the driving device to drive the rotating wheel to move, so that the folded concrete secondary lining formwork trolley moves along the arc track to the direction to be constructed; installing the driving device includes the following steps: installing the track clamp, which is installed on the arc track; installing the rotary propulsion cylinder, installing one end of the propulsion cylinder on the track clamp and the other end on the rotating wheel; 10) Start the supporting device, remove the rotating wheel, and install the linear track along the direction to be constructed; the supporting device includes a number of supporting jacks installed on the lower longitudinal beam of the concrete secondary lining formwork trolley, and the concrete secondary lining formwork trolley is supported by the supporting jacks until it is off the linear track; 11) Fold up the supporting device so that the linear travel system on the folded concrete secondary lining formwork trolley falls into the linear track; 12) Unfold the folded concrete secondary lining formwork trolley.

2. A construction method of a trolley capable of rotating a concrete secondary lining formwork in a tunnel according to claim 1, It is characterized in that Before construction, all obstacles in the tunnel to be constructed need to be removed in advance.

3. The construction method of a trolley capable of rotating a concrete secondary lining formwork in a tunnel according to claim 1, It is characterized in that The folded concrete secondary lining formwork trolley can be pushed multiple times by the driving device to reach a designated position, and the driving device is removed after reaching the designated position.

4. A construction method of a trolley capable of rotating a concrete secondary lining formwork in a tunnel according to claim 3, It is characterized in that The multiple propulsion includes the following steps: after the propulsion cylinder is pushed for a certain distance, the rail clamp is removed and the propulsion cylinder is retracted; the rail clamp is installed when the propulsion cylinder is in the retracted state; and repeated propulsion is performed.

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