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

Abstract

The utility model 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, which is characterized in that 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 utility model relates to underground powerhouse high top arch concrete lining construction technical field especially a simple formwork trolley for underground powerhouse high top arch concrete lining. BACKGROUND

[0002] As the core building of pump station and hydropower station, underground powerhouse has the characteristics of high excavation height and large span, therefore, the concrete construction of underground powerhouse top arch lining is a big difficulty of underground powerhouse concrete construction, the concrete construction of underground powerhouse top arch generally adopts full hall floor steel pipe scaffold as formwork support to pour concrete, this scheme needs to repeatedly install and remove full hall scaffold, this kind of full hall scaffold has high erection height, and has the problems of high risk coefficient, complicated construction procedure, low construction efficiency and high construction cost.

[0003] Therefore, it is urgent to develop a simple formwork trolley for underground powerhouse high top arch concrete lining to overcome the shortcomings of the prior art. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the problems of the prior art, providing a simple formwork trolley for underground powerhouse high top arch concrete lining to improve construction efficiency and reduce construction cost.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A simple formwork trolley for underground powerhouse high top arch concrete lining comprises: tracks arranged on both sides of concrete corbels / rock wall beams, a walking device, a disc buckle type steel pipe scaffold arranged above the walking device, a plurality of adjustable spiral jacks arranged above the disc buckle type steel pipe scaffold, a formwork support frame arranged above the plurality of adjustable spiral jacks, 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 buckle type steel pipe scaffold.

[0007] The plurality of arc-shaped steel formworks are fixed by seamless steel pipe back lath; the walking device comprises a chassis detachably connected with the disc buckle type steel pipe scaffold, a plurality of walking wheels arranged below the chassis, and a driving device; and the plurality of lantern scaffolds are detachably connected with concrete pump pipes.

[0008] Preferably, the chassis comprises a plurality of I-shaped steel longitudinal beams and a plurality of I-shaped steel transverse beams; the plurality of I-shaped steel longitudinal beams and the plurality of I-shaped steel transverse beams form a rectangular frame; the plurality of I-shaped steel transverse beams are arranged above the plurality of I-shaped steel longitudinal beams, a plurality of vertical bars are arranged above the plurality of I-shaped steel transverse beams, the vertical bars are sleeved with the bottom of the disc buckle type steel pipe scaffold, and the bottom of the plurality of I-shaped steel longitudinal beams is rotationally connected with the walking wheels through a wheel frame.

[0009] Preferably, the connection positions of the several I-beam longitudinal beams and the several I-beam transverse beams are provided with stiffened plates.

[0010] Preferably, the driving device comprises a walking motor, a speed reducer and a driving chain; the output shaft of the walking motor is connected with the input shaft of the speed reducer through a shaft coupling; the output shaft of the speed reducer is sleeved with a driving wheel; the driving wheel is sleeved with one side of the driving chain; and the other side of the driving chain is sleeved with a group of walking wheel sprockets.

[0011] Preferably, the bottom plate is fully paved with a bamboo jumping plate; the left and right sides of the bottom plate are provided with skirting boards and guardrails; and a protective net is hung on the guardrails.

[0012] Preferably, the adjustable screw jacks are arranged above the steel pipe upright columns of the disc buckle type steel pipe scaffold.

[0013] Preferably, the formwork support frame comprises trusses and arch frames; and a plurality of seamless steel pipe longitudinal beams and seamless steel pipe diagonal braces are arranged between the trusses.

[0014] Preferably, an operation window is arranged on the arc-shaped steel formwork; and a window steel formwork which can be turned up and down is arranged below the operation window.

[0015] The utility model discloses a simple formwork trolley for high-arch concrete lining of underground powerhouse has the following beneficial effects.

[0016] The utility model discloses a simple formwork trolley for high-arch concrete lining of underground powerhouse has the following beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the front view structure schematic drawing of the utility model.

[0018] Fig. 2 It is the side view structure schematic drawing of the utility model.

[0019] Fig. 3 It is the walking device schematic drawing of the utility model.

[0020] In the drawings: 1, walking device; 11, chassis; 111, I-beam longitudinal beam; 112, I-beam cross beam; 113, vertical reinforcement; 12, walking wheel; 13, driving device; 131, walking motor; 132, speed reducer; 133, driving chain; 2, disc buckle type steel pipe scaffold; 3, adjustable spiral jacking; 4, formwork support frame; 41, truss; 42, arch support; 43, seamless steel pipe longitudinal beam; 44, seamless steel pipe diagonal brace; 5, arc steel formwork; 51, seamless steel pipe back lath; 6, lantern scaffold; 7, concrete pump pipe; 8, concrete corbel; 9, track. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model in a specific orientation, structure and operation, and therefore cannot be understood as limiting the utility model. Embodiment 1

[0023] Reference Figs. 1 to 3 A simple formwork trolley for high-arch concrete lining of underground powerhouse, comprising: track 9 arranged on both sides of concrete corbel 8 / rock wall beam, walking device 1, disc buckle type steel pipe scaffold 2 arranged above walking device 1, a plurality of adjustable spiral jacking 3 arranged above disc buckle type steel pipe scaffold 2, formwork support frame 4 arranged above a plurality of adjustable spiral jacking 3, a plurality of arc steel formwork 5 arranged above formwork support frame 4, and a plurality of lantern scaffolds 6 arranged at the bottom of disc buckle type steel pipe scaffold 2; in this embodiment, as a preferred adjustable spiral jacking 3 is arranged above the steel pipe column of disc buckle type steel pipe scaffold 2, the height of the adjustable spiral jacking can be adjusted to control the lifting of arc steel formwork 5, which facilitates the correction of arc steel formwork 5 and the realization of overall stripping of the formwork trolley; specifically, the arc steel formwork 5 adopts 3012 arc steel formwork 5, the lantern scaffold 6 adopts φ48.3*3.6mm steel pipe scaffold, and the lantern scaffold 6 serves as a support bent frame of concrete pump pipe 7, which can cancel the repeated process of installing and dismounting the pump pipe support bent frame, thereby effectively improving the construction efficiency.

[0024] The arc-shaped steel formwork 5 is fixed by the seamless steel pipe back 51, and the seamless steel pipe back 51 is φ48.3*3.6mm; the walking device 1 comprises: a bottom disc 11 detachably connected with the disc buckle type steel pipe scaffold 2, a plurality of walking wheels 12 arranged below the bottom disc 11, and a driving device 13; and the lantern scaffold 6 is detachably connected with the concrete pump pipe 7.

[0025] In the embodiment, the preferred bottom disc 11 comprises: a plurality of I-shaped steel longitudinal beams 111 and a plurality of I-shaped steel transverse beams 112; the plurality of I-shaped steel longitudinal beams 111 and the plurality of I-shaped steel transverse beams 112 form a rectangular frame; the plurality of I-shaped steel transverse beams 112 are arranged above the plurality of I-shaped steel longitudinal beams 111, a plurality of vertical bars 113 are arranged above the plurality of I-shaped steel transverse beams 112, and the vertical bars 113 are sleeved with the bottom of the disc buckle type steel pipe scaffold 2; the bottom of the plurality of I-shaped steel longitudinal beams 111 is rotationally connected with the walking wheel 12 through a wheel bracket, and the vertical bars 113 are sleeved with the bottom of the disc buckle type steel pipe scaffold 2, so that the displacement of the disc buckle type steel pipe scaffold 2 during the movement of the formwork trolley is avoided, the steel pipe column of the disc buckle type steel pipe scaffold 2 is prevented from being suspended, and the safety hazard is avoided; in the embodiment, the I-shaped steel longitudinal beam 111 is I25a, the I-shaped steel transverse beam 112 is I16, and the diameter of the vertical bar 113 is 20mm and the length is 20cm; the I25a is used as the longitudinal beam of the formwork trolley, so that the structural strength of the trolley meets the bearing requirement.

[0026] The movable formwork trolley is arranged on the concrete bracket 8 / rock wall beam structure, the walking device 1 is used to form a movable bearing operation platform, the lantern scaffold 6 and the concrete pump pipe 7 are arranged at the bottom of the platform, the disc buckle type steel pipe scaffold 2, the adjustable screw jacking 3, the formwork support frame 4 and the arc-shaped steel formwork 5 are arranged above the platform, the adjustable screw jacking 3 is used to control the lifting of the formwork support frame 4, the underground powerhouse high-arch concrete construction flow operation is realized, the steel pipe full-floor scaffold is cancelled, the plane space cross operation is changed into the three-dimensional space cross operation, the multiple working faces can be simultaneously constructed without interference, the construction cost is reduced, and the construction efficiency is improved.

[0027] In the embodiment, the I-shaped steel longitudinal beam 111 and the I-shaped steel transverse beam 112 are welded with a stiffener at the connection position, so that the fixing effect between the I-shaped steel longitudinal beam 111 and the I-shaped steel transverse beam 112 is improved, the I-shaped steel transverse beam 112 spans the two sides of the concrete bracket 8 / rock wall beam and is the basis of the disc buckle type steel pipe scaffold 2, the I16 is used as the transverse beam of the formwork trolley, so that the structural strength meets the bearing requirement and the material cost is effectively controlled.

[0028] In the embodiment, the preferred driving device 13 comprises a walking motor 131, a speed reducer 132, and a driving chain 133. The output shaft of the walking motor 131 is connected to the input shaft of the speed reducer 132 through a shaft coupling. The driving wheel is sleeved on the output shaft of the speed reducer 132. The driving wheel is sleeved on one side of the driving chain 133. The other side of the driving chain 133 is sleeved with a set of sprocket of the walking wheel 12. In the embodiment, the walking device 1 is driven by two 7.5kW electric motors.

[0029] In the embodiment, the preferred chassis 11 is fully paved with bamboo jumping plates above. The left and right sides of the chassis 11 are provided with skirting boards and guardrails. The guardrails are hung with protective nets to prevent materials from falling and to prevent personnel from falling, thereby improving the safety of the operating personnel.

[0030] In the embodiment, the preferred formwork support frame 4 comprises a truss 41 and an arch frame 42. A plurality of seamless steel pipe stringers 43 and seamless steel pipe diagonal braces 44 are arranged between the trusses 41, so that the trusses 41 of the formwork support frame 4 are connected to each other to form a whole. The stability of the formwork trolley is strengthened by the stability of the triangle.

[0031] In the embodiment, the preferred arc-shaped steel formwork 5 is provided with an operation window. A window steel formwork that can be flipped up and down is arranged below the operation window. Through the window steel formwork arranged on the arc-shaped steel formwork 5, the rising of the concrete can be observed, and the concrete can be vibrated at the same time. Embodiment 2

[0032] Based on embodiment 1, the embodiment provides a mounting method of the simple formwork trolley for the high-arch concrete lining of the underground powerhouse in embodiment 1, comprising the following steps:

[0033] Step 1, installing the walking device 1;

[0034] Step 1.1, installing the track 9. The wheel frame, the walking wheel 12, and the driving device 13 are hoisted to the two-side concrete corbels 8 / rock wall beams;

[0035] Step 1.2, welding the walking wheels 12 at equal intervals on the bottom of the I-beam stringers 111 on the two-side concrete corbels 8 / rock wall beams, and installing the driving device 13;

[0036] Step 1.3, welding the I-beam cross beams 112 above the I-beam stringers 111 on the two-side concrete corbels 8 / rock wall beams. The interval between the I-beam cross beams 112 is 0.9m, which is the same as the row distance of the disc-dog type steel pipe scaffold 2. The vertical bars 113 are welded above the I-beam cross beams 112. The interval of the vertical bars 113 is the same as the row distance of the disc-dog type steel pipe scaffold 2, and the specific interval is 0.9m;

[0037] Step 2, installation of the lantern scaffold 6; install the vertical downward lantern scaffold 6 below the I-beam 112;

[0038] Step 3, installation of the disc-type steel pipe scaffold 2 and the adjustable screw jacks 3; erect the disc-type steel pipe scaffold 2 with the interval of 0.9m x 0.9m and the step distance of 1.0m.

[0039] Step 3.1, put the steel pipe column of the disc-type steel pipe scaffold 2 on the vertical reinforcement 113;

[0040] Step 3.2, install the adjustable screw jacks 3 above the steel pipe column of the disc-type steel pipe scaffold 2;

[0041] Step 4, installation of the formwork support frame 4; adjust the telescopic distance of the adjustable screw jacks 3, install the truss 41 and the arch 42 above the adjustable screw jacks 3;

[0042] Step 5, installation of the arc-shaped steel formwork 5; assemble the arc-shaped steel formwork 5 outside the truss 41 and the arch 42, and use the seamless steel pipe back brace 51 to fix the steel formwork;

[0043] Step 6, installation of the protective device; fully pave the bamboo jumping plate above the I-beam 112, install the skirting board and the protective rail on the left and right sides of the I-beam 112, the height of the protective rail is not less than 1.2m, and the protective net is hung on the protective rail.

[0044] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this. The substitution can be the substitution of part of the structure, device, method step, or the complete technical scheme. According to the technical scheme and the inventive concept of the present application, the equivalent substitution or change should be covered in the protection scope of the present application.

Claims

1. A simple formwork trolley for high-arch concrete lining of underground powerhouse, characterized in that, The utility model relates to a kind of movable formwork systems, including: Track (9) arranged on both sides of concrete bracket (8) / rock wall beam, walking device (1), disc type steel pipe scaffold (2) arranged above walking device (1), several adjustable screw jacks (3) arranged above disc type steel pipe scaffold (2), formwork support frame (4) arranged above several adjustable screw jacks (3), several arc steel formworks (5) arranged above formwork support frame (4), several lantern scaffoldings (6) arranged at the bottom of disc type steel pipe scaffold (2); Several arc steel formworks (5) are fixed by seamless steel pipe back lath (51). Walking device (1) includes: bottom plate (11) detachably connected with disc type steel pipe scaffold (2), several walking wheels (12) arranged below bottom plate (11), driving device (13);Several lantern scaffoldings (6) are detachably connected with concrete pump pipe (7) inside.

2. The simple formwork trolley for high-arch concrete lining of underground powerhouse according to claim 1, characterized in that, Bottom plate (11) includes: several I-beam longitudinal beams (111), several I-beam transverse beams (112);Several I-beam longitudinal beams (111) and several I-beam transverse beams (112) form a rectangular frame;Several I-beam transverse beams (112) are arranged above several I-beam longitudinal beams (111), several vertical bars (113) are arranged above several I-beam transverse beams (112), and several vertical bars (113) are sleeved with the bottom of disc type steel pipe scaffold (2);The bottom of several I-beam longitudinal beams (111) is rotatably connected with walking wheel (12) through wheel carrier.

3. The simple formwork trolley for high-arch concrete lining of underground powerhouse according to claim 2, characterized in that, The connection position of several I-beam longitudinal beams (111) and several I-beam transverse beams (112) is provided with a stiffener.

4. The simple formwork trolley for high-arch concrete lining of underground powerhouse according to claim 1 or 2, characterized in that, Driving device (13) includes: walking motor (131), speed reducer (132), driving chain (133);The output shaft of walking motor (131) is connected with the input shaft of speed reducer (132) through a shaft coupling, a driving wheel is sleeved on the output shaft of speed reducer (132), the driving wheel is sleeved with one side of driving chain (133), and the other side of driving chain (133) is sleeved with a group of walking wheel (12) sprocket.

5. The simple formwork trolley for high-arch concrete lining of underground powerhouse according to claim 2, characterized in that, The bottom plate (11) is fully paved with bamboo jumping plate, and the left and right sides of the bottom plate (11) are provided with skirting board and protective rail, and the protective rail is hung with protective net.

6. The simple formwork trolley for high-arch concrete lining of underground powerhouse according to claim 1, characterized in that, Adjustable screw jack (3) is arranged above the steel pipe column of disc type steel pipe scaffold (2).

7. The simple formwork trolley for high-arch concrete lining of underground powerhouse according to claim 1, characterized in that, Formwork support frame (4) includes: truss (41) and arch frame (42), several seamless steel pipe longitudinal beams (43) and seamless steel pipe diagonal braces (44) are arranged between truss (41).

8. The simple formwork trolley for high-arch concrete lining of underground powerhouse according to claim 1, characterized in that, Arc steel formwork (5) is provided with an operating window, and a window steel formwork that can be turned up and down is arranged below the operating window.

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