Simple formwork trolley for high top arch concrete lining of underground powerhouse

Abstract

The invention relates to the technical field of underground powerhouse high top arch concrete lining construction, and provides a simple formwork trolley for underground powerhouse high top arch concrete lining, a movable formwork trolley is erected on a concrete bracket / rock wall beam structure, and a movable bearing operation platform is formed through a walking device. A lantern scaffold and a concrete pump pipe are installed at the bottom of the platform, a disc buckle type steel pipe scaffold, an adjustable spiral jacking, a formwork supporting frame and an arc-shaped steel formwork are erected above the platform, the formwork supporting frame is controlled to ascend and descend through the adjustable spiral jacking, underground powerhouse high top arch concrete construction line production is achieved, a steel pipe landing all-round scaffold is omitted, and construction cost is reduced. Plane space cross operation is converted into three-dimensional space cross operation, simultaneous construction of multiple working faces can be achieved, mutual interference is avoided, the construction cost is reduced, and the construction efficiency is improved; and the window steel formwork is arranged on the arc-shaped steel formwork, so that the concrete can be vibrated while the ascending condition of the concrete can be observed.

Description

Technical Field

[0001] The invention relates to the technical field of high-arch concrete lining construction of underground powerhouses, in particular to a simple formwork trolley used for high-arch concrete lining of underground powerhouses. Background Art

[0002] As the core building of the pump station and hydropower station, the underground powerhouse has the characteristics of high excavation height and large span. Therefore, the construction of the underground powerhouse top arch lining concrete is a major difficulty in the concrete construction of the underground powerhouse. The construction of the underground powerhouse top arch concrete generally uses a full-height ground-to-ground steel pipe scaffolding as a formwork support for pouring concrete. This solution requires repeated installation and dismantling of the full-height scaffolding. This type of full-height scaffolding has a high erection height, is difficult to install and dismantle, has a high risk factor, and has a complicated construction procedure. Not only is the construction efficiency low, but the construction cost is also high.

[0003] Therefore, it is urgent to develop a simple formwork trolley for high-arch concrete lining of underground workshops to overcome the shortcomings of the prior art. Summary of the invention

[0004] The purpose of the present invention is to solve the deficiencies of the prior art and to provide a simple formwork trolley for high-arch concrete lining of underground workshops, so as to improve construction efficiency and reduce construction costs.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A simple formwork trolley for high-arch concrete lining of underground workshops, comprising: tracks arranged on concrete corbels / rock wall beams on both sides, a walking device, a disc-type steel pipe scaffold arranged above the walking device, a plurality of adjustable spiral top supports arranged above the disc-type steel pipe scaffold, a formwork support frame arranged above the plurality of adjustable spiral top supports, a plurality of arc-shaped steel formworks arranged above the formwork support frame, and a plurality of lantern scaffolds arranged at the bottom of the disc-type steel pipe scaffold; The arc-shaped steel templates are fixed by seamless steel pipe back ribs; the walking device comprises: a chassis detachably connected to the disc-type steel pipe scaffolding, a plurality of walking wheels arranged below the chassis, and a driving device; the lantern scaffolds are detachably connected with concrete pump pipes.

[0006] Preferably, the chassis includes: a plurality of I-beam longitudinal beams and a plurality of I-beam transverse beams; the plurality of I-beam longitudinal beams and a plurality of I-beam transverse beams form a rectangular frame; a plurality of I-beam transverse beams are placed above the plurality of I-beam longitudinal beams, a plurality of vertical ribs are provided above the plurality of I-beam transverse beams, the vertical ribs are sleeved on the bottom of the disc-type steel pipe scaffolding; the bottom of the plurality of I-beam longitudinal beams is rotatably connected to the walking wheels through a wheel frame.

[0007] Preferably, stiffening plates are provided at the connection positions of the plurality of I-beam longitudinal beams and the plurality of I-beam transverse beams.

[0008] Preferably, the driving device includes: a walking motor, a reducer, and a driving chain; the walking motor output shaft is connected to the reducer input shaft through a coupling, and a driving wheel is sleeved on the reducer output shaft, the driving wheel is sleeved on one side of the driving chain, and the other side of the driving chain is sleeved on a group of walking wheel sprockets.

[0009] Preferably, the chassis is fully paved with bamboo springboards, and the left and right sides of the chassis are provided with skirting boards and guardrails, and a protective net is hung on the guardrails.

[0010] Preferably, the adjustable spiral jack is arranged above the steel pipe column of the disc-type steel pipe scaffolding.

[0011] Preferably, the formwork support frame comprises: a truss and an arch frame, and a plurality of seamless steel pipe longitudinal beams and seamless steel pipe diagonal braces are arranged between the trusses.

[0012] Preferably, an operating window is provided on the arc-shaped steel template, and a window steel template that can be flipped up and down is provided below the operating window.

[0013] Another object of the present invention is to provide a method for installing the above-mentioned simple formwork trolley for high-arch concrete lining of underground workshops, comprising the following steps: Step 1: Installation of walking device; Step 1.1: Install the track and hoist the wheel frame, running wheels and drive device onto the concrete brackets / rock wall beams on both sides; Step 1.2: Weld the travel wheels equidistantly to the bottom of the I-beam longitudinal beam on the concrete corbels / rock wall beams on both sides and install the drive device; Step 1.3, weld the I-beam cross beams above the I-beam longitudinal beams on the concrete corbels / rock wall beams on both sides, the spacing between the cross beams is the same as the spacing of the disc-type steel pipe scaffolding, weld the vertical bars above the I-beam cross beams, the spacing between the vertical bars is the same as the spacing of the disc-type steel pipe scaffolding; Step 2: Install the lantern scaffolding: Install the vertically downward lantern scaffolding under the I-beam beam; Step 3: Install the disc-type steel pipe scaffolding and adjustable spiral jacking support; Step 3.1, put the bottom of the steel pipe column of the disc-type steel pipe scaffolding on the vertical reinforcement; Step 3.2, install the adjustable spiral jacking support on the steel pipe column of the disc-type steel pipe scaffolding; Step 4: Install the formwork support frame; adjust the telescopic distance of the adjustable spiral jacking support, and install the truss and arch frame above the adjustable spiral jacking support; Step 5: Install the curved steel formwork: Assemble the curved steel formwork on the outside of the truss and arch frame, and use seamless steel pipe back ribs to fix the steel formwork; Step 6: Install protective equipment; lay bamboo planks on top of the I-beam, install skirting boards and guardrails on the left and right sides of the I-beam, and hang protective nets on the guardrails.

[0014] The invention discloses a simple formwork trolley for high-arch concrete lining of an underground factory building, which has the following beneficial effects.

[0015] The present invention sets up a movable formwork trolley on the concrete corbel / rock beam structure, forms a movable load-bearing working platform through a walking device, installs a lantern scaffolding and a concrete pump pipe at the bottom of the platform, sets up a disc-type steel pipe scaffolding, an adjustable spiral top support, a formwork support frame, and an arc-shaped steel formwork above the platform, and controls the lifting of the formwork support frame through the adjustable spiral top support to realize the flow operation of high-top arch concrete construction of underground workshops, eliminates the full-hall scaffolding of steel pipes on the ground, converts the plane space cross operation into the three-dimensional space cross operation, realizes that multiple work surfaces can be constructed simultaneously without interfering with each other, reduces the construction cost, and improves the construction efficiency; by arranging a window steel formwork on the arc-shaped steel formwork, the concrete rising situation can be observed and the concrete can be vibrated at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the present invention.

[0017] Figure 2 It is a side structural schematic diagram of the present invention.

[0018] Figure 3 It is a schematic diagram of the walking device of the present invention.

[0019] In the attached figure: 1. walking device; 11. chassis; 111. I-beam longitudinal beam; 112. I-beam cross beam; 113. vertical rib; 12. walking wheel; 13. driving device; 131. walking motor; 132. reducer; 133. driving chain; 2. disc-type steel pipe scaffolding; 3. adjustable spiral top support; 4. formwork support frame; 41. truss; 42. arch frame; 43. seamless steel pipe longitudinal beam; 44. seamless steel pipe diagonal brace; 5. arc steel formwork; 51. seamless steel pipe back rib; 6. lantern scaffolding; 7. concrete pump pipe; 8. concrete corbel; 9. track. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position 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 a limitation on the present invention. Example 1

[0022] Reference Figures 1 to 3 A simple formwork trolley for high-arch concrete lining of underground workshops comprises: tracks 9 arranged on concrete corbels 8 / rock beams on both sides, a walking device 1, a disc-type steel pipe scaffold 2 arranged above the walking device 1, a plurality of adjustable spiral top supports 3 arranged above the disc-type steel pipe scaffold 2, a formwork support frame 4 arranged above the plurality of adjustable spiral top supports 3, a plurality of arc-shaped steel formworks 5 arranged above the formwork support frame 4, and a plurality of lantern scaffolds 6 arranged at the bottom of the disc-type steel pipe scaffold 2; in this embodiment, For the purpose of optimizing, the adjustable spiral jacking support 3 is arranged above the steel pipe column of the disc-type steel pipe scaffolding 2, and the height of the adjustable spiral jacking support can be used to control the lifting and lowering of the arc steel formwork 5, so as to facilitate the correction of the arc steel formwork 5 and realize the overall demoulding of the formwork trolley; the specific arc steel formwork 5 adopts 3012 arc steel formwork 5, and the lantern scaffolding 6 adopts φ48.3×3.6mm steel pipe scaffolding. The lantern scaffolding 6 serves as a support frame for the concrete pump pipe 7, which can eliminate the process of repeatedly installing and disassembling the pump pipe support frame, and effectively improve the construction efficiency.

[0023] Several arc steel templates 5 are fixed by seamless steel pipe back ribs 51, and the seamless steel pipe back ribs 51 are φ48.3×3.6mm; the walking device 1 includes: a chassis 11 detachably connected to the disc-type steel pipe scaffolding 2, several walking wheels 12 arranged under the chassis 11, and a driving device 13; several lantern scaffoldings 6 are detachably connected with concrete pump pipes 7. In this embodiment, there are 6 groups of walking wheels 12, and 3 groups are installed on the concrete brackets 8 / rock wall beams on both sides, with a spacing of 6.5m. The movement of the walking device 1 is achieved by driving 2 of the 6 groups of walking wheels 12. The two driven groups of walking wheels 12 are arranged symmetrically, and the two groups are arranged on the concrete brackets 8 / rock wall beams on both sides. In this embodiment, the chassis 11 preferably includes: a plurality of I-beam longitudinal beams 111, a plurality of I-beam cross beams 112; the plurality of I-beam longitudinal beams 111 and the plurality of I-beam cross beams 112 form a rectangular frame; the plurality of I-beam cross beams 112 are placed above the plurality of I-beam longitudinal beams 111, and a plurality of vertical ribs 113 are arranged above the plurality of I-beam cross beams 112, and the vertical ribs 113 are sleeved with the bottom of the disc-type steel pipe scaffolding 2; the bottom of the plurality of I-beam longitudinal beams 111 is rotatably connected to the walking wheel 12 through a wheel frame, The vertical ribs 113 are sleeved on the bottom of the disc-type steel tube scaffolding 2, which can prevent the columns of the disc-type steel tube scaffolding 2 from shifting when the template trolley moves, causing the steel tube columns of the disc-type steel tube scaffolding 2 to be suspended in the air, causing safety hazards; in this embodiment, the I-beam longitudinal beam 111 adopts I25a I-beam, and the I-beam cross beam 112 adopts I16 I-beam. The diameter of the vertical ribs 113 is 20mm and the length is 20cm; I25a I-beam is used as the longitudinal beam of the template trolley, so that the structural strength of the trolley meets the load-bearing requirements.

[0024] A movable formwork trolley is set up on the concrete corbel 8 / rock beam structure, and a movable load-bearing working platform is formed by a walking device 1. A lantern scaffolding 6 and a concrete pump pipe 7 are installed at the bottom of the platform. A disc-type steel pipe scaffolding 2, an adjustable spiral top support 3, a formwork support frame 4, and an arc-shaped steel formwork 5 are set up above the platform. The adjustable spiral top support 3 is used to control the lifting of the formwork support frame 4, so as to realize the flow operation of the high-arch concrete construction of the underground factory building, eliminate the steel pipe floor-standing scaffolding, and convert the plane space cross operation into the three-dimensional space cross operation, so that multiple work surfaces can be constructed at the same time without interfering with each other, thereby reducing the construction cost and improving the construction efficiency.

[0025] In this embodiment, as a preferred method, stiffening plates are welded at the connection positions of several I-beam longitudinal beams 111 and several I-beam cross beams 112 to improve the fixing effect between the I-beam longitudinal beams 111 and the I-beam cross beams 112. The I-beam cross beams 112 span the concrete corbels 8 / rock wall beams on both sides and are the basis for erecting the disc-type steel pipe scaffolding 2. I16 I-beams are used as the template trolley cross beams, which not only ensures that the structural strength meets the load-bearing requirements but also effectively controls the material cost.

[0026] In this embodiment, the preferred driving device 13 includes: a walking motor 131, a reducer 132, and a drive chain 133; the output shaft of the walking motor 131 is connected to the input shaft of the reducer 132 through a coupling, and a driving wheel is sleeved on the output shaft of the reducer 132, and the driving wheel is sleeved on one side of the driving chain 133, and the other side of the driving chain 133 is sleeved on a group of walking wheels 12 sprockets. In this embodiment, the walking device 1 is driven by two 7.5kW motors.

[0027] In this embodiment, as a preferred embodiment, the chassis 11 is fully covered with bamboo springboards, and the left and right sides of the chassis 11 are provided with skirting boards and guardrails. A protective net is hung on the guardrails to prevent materials from falling and people from falling, thereby improving the safety of workers.

[0028] In this embodiment, the preferred formwork support frame 4 includes: a truss 41 and an arch frame 42. A plurality of seamless steel pipe longitudinal beams 43 and seamless steel pipe diagonal braces 44 are provided between the trusses 41, so that the trusses 41 of the formwork support frame 4 are interconnected into a whole, and the structural stability of the formwork trolley is enhanced by utilizing the stability of the triangle.

[0029] In this embodiment, an operation window is preferably provided on the arc-shaped steel template 5, and a window steel template that can be turned up and down is provided below the operation window. By arranging the window steel template on the arc-shaped steel template 5, the concrete rising situation can be observed while vibrating the concrete. Example 2

[0030] Based on Example 1, this embodiment provides a method for installing a simple formwork trolley for high-arch concrete lining of an underground factory building in Example 1, comprising the following steps: Step 1, installing the walking device 1; Step 1.1, install the track 9, and hoist the wheel frame, the traveling wheel 12 and the driving device 13 onto the concrete brackets 8 / rock wall beams on both sides; Step 1.2, on the concrete corbels 8 / rock beams on both sides, respectively, the traveling wheels 12 are welded at equal distances to the bottom of the I-beam longitudinal beam 111, and the driving device 13 is installed; Step 1.3, weld I-beam cross beams 112 above the I-beam longitudinal beams 111 on the concrete corbels 8 / rock wall beams on both sides, the spacing between the I-beam cross beams 112 is 0.9m, and the spacing between the cross beams is the same as the spacing of the disc-type steel pipe scaffolding 2 rows, weld vertical ribs 113 above the I-beam cross beams 112, and the spacing between the vertical ribs 113 is the same as the spacing of the disc-type steel pipe scaffolding 2 rows, and the specific spacing is 0.9m; Step 2, installation of lantern scaffold 6: Install the lantern scaffold 6 vertically downward below the I-beam crossbeam 112; Step 3: Install the disc-type steel pipe scaffolding 2 and the adjustable spiral top support 3; the spacing between rows is 0.9m×0.9m, and the step distance is 1.0m.

[0031] Step 3.1, put the bottom of the steel pipe column of the disc-type steel pipe scaffolding 2 on the vertical rib 113; Step 3.2, installing an adjustable spiral jacking support 3 above the steel pipe column of the disc-type steel pipe scaffolding 2; Step 4, the template support frame 4 is installed; the telescopic distance of the adjustable spiral jack 3 is adjusted, and the truss 41 and the arch frame 42 are installed above the adjustable spiral jack 3; Step 5, installation of the arc steel formwork 5; assembling the arc steel formwork 5 on the outside of the truss 41 and the arch 42, and fixing the steel formwork with a seamless steel pipe back rib 51; Step 6, install protective equipment; lay bamboo planks all over the top of the I-beam beam 112, install skirting boards and guardrails on both sides of the I-beam beam 112, the height of the guardrails shall not be less than 1.2m, and hang a protective net on the guardrails.

[0032] The above are only preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto. The substitution may be a substitution of a part of the structure, device, method step, or a complete technical solution. Any equivalent replacement or change according to the technical solution and the inventive concept of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A simple formwork trolley for high arch concrete lining of underground workshop, characterized in that: include: Tracks (9) arranged on the concrete corbels (8) / rock wall beams on both sides, a walking device (1), a disc-type steel pipe scaffold (2) arranged above the walking device (1), a plurality of adjustable spiral top supports (3) arranged above the disc-type steel pipe scaffold (2), a formwork support frame (4) arranged above the plurality of adjustable spiral top supports (3), a plurality of arc-shaped steel formworks (5) arranged above the formwork support frame (4), and a plurality of lantern scaffolds (6) arranged at the bottom of the disc-type steel pipe scaffold (2); The plurality of arc-shaped steel templates (5) are fixed by means of seamless steel pipe back ribs (51); The walking device (1) comprises: a chassis (11) detachably connected to a disc-type steel pipe scaffold (2), a plurality of walking wheels (12) arranged below the chassis (11), and a driving device (13); and a concrete pump pipe (7) is detachably connected to each of the plurality of lantern scaffolds (6).

2. A simple formwork trolley for high arch concrete lining of underground workshop according to claim 1, characterized in that: The chassis (11) comprises: a plurality of I-beam longitudinal beams (111) and a plurality of I-beam transverse beams (112); the plurality of I-beam longitudinal beams (111) and the plurality of I-beam transverse beams (112) form a rectangular frame; the plurality of I-beam transverse beams (112) are placed above the plurality of I-beam longitudinal beams (111); a plurality of vertical ribs (113) are provided above the plurality of I-beam transverse beams (112); the vertical ribs (113) are sleeved with the bottom of the disc-type steel pipe scaffold (2); the bottom of the plurality of I-beam longitudinal beams (111) is rotatably connected to the walking wheels (12) via a wheel frame.

3. A simple formwork trolley for high arch concrete lining of underground workshop according to claim 2, characterized in that: Stiffening plates are provided at connection positions of the plurality of I-steel longitudinal beams (111) and the plurality of I-steel transverse beams (112).

4. A simple formwork trolley for high arch concrete lining of underground workshops according to claim 1 or 2, characterized in that: The driving device (13) comprises: a travel motor (131), a reducer (132), and a drive chain (133); the output shaft of the travel motor (131) is connected to the input shaft of the reducer (132) via a coupling; a drive wheel is sleeved on the output shaft of the reducer (132); the drive wheel is sleeved on one side of the drive chain (133), and the other side of the drive chain (133) is sleeved on a group of travel wheel (12) sprockets.

5. The simple formwork trolley for high arch concrete lining of underground workshop according to claim 2, characterized in that: The chassis (11) is fully paved with bamboo springboards, and the left and right sides of the chassis (11) are provided with skirting boards and guardrails, and a protective net is hung on the guardrails.

6. A simple formwork trolley for high arch concrete lining of underground workshop according to claim 1, characterized in that: The adjustable spiral jack (3) is arranged above the steel pipe column of the disc-type steel pipe scaffolding (2).

7. The simple formwork trolley for high arch concrete lining of underground workshop according to claim 1, characterized in that: The formwork support frame (4) comprises: a truss (41) and an arch frame (42), and a plurality of seamless steel pipe longitudinal beams (43) and seamless steel pipe diagonal braces (44) are arranged between the trusses (41).

8. The simple formwork trolley for high arch concrete lining of underground workshop according to claim 1, characterized in that: The arc-shaped steel template (5) is provided with an operation window, and a window steel template that can be turned upside down is provided below the operation window.

9. The method for installing a simple formwork trolley for high-arch concrete lining of an underground factory building according to claim 1, characterized in that: The following steps are involved: Step 1: Install the walking device (1); Step 1.1, install the track (9), and hoist the wheel frame, the running wheel (12) and the driving device (13) onto the concrete brackets (8) / rock wall beams on both sides; Step 1.2, on the concrete brackets (8) / rock wall beams on both sides, the walking wheels (12) are welded to the bottom of the I-beam longitudinal beam (111) at equal distances, and the driving device (13) is installed; Step 1.3, welding I-beam cross beams (112) above the I-beam longitudinal beams (111) on the concrete corbels (8) / rock wall beams on both sides, the spacing between the cross beams being the same as the row spacing of the disc-type steel pipe scaffolding (2), welding vertical ribs (113) above the I-beam cross beams (112), the spacing between the vertical ribs (113) being the same as the row spacing of the disc-type steel pipe scaffolding (2); Step 2, installing the lantern scaffold (6); installing the lantern scaffold (6) vertically downward below the I-beam crossbeam (112); Step 3: Install the disc-type steel pipe scaffolding (2) and the adjustable spiral top support (3); Step 3.1, put the bottom of the steel pipe column of the disc-type steel pipe scaffolding (2) on the vertical reinforcement (113); Step 3.2, installing an adjustable spiral jacking support (3) above the steel pipe column of the disc-type steel pipe scaffolding (2); Step 4, installing the formwork support frame (4); adjusting the telescopic distance of the adjustable spiral top support (3), and installing the truss (41) and the arch frame (42) above the adjustable spiral top support (3); Step 5, installing the arc-shaped steel formwork (5); assembling the arc-shaped steel formwork (5) on the outside of the truss (41) and the arch frame (42), and fixing the steel formwork with a seamless steel pipe back rib (51); Step 6, installing protective equipment; laying bamboo springboards all over the top of the I-beam crossbeam (112), installing skirting boards and guardrails on the left and right sides of the I-beam crossbeam (112), and hanging a protective net on the guardrails.

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