Spliced slip form suitable for overflow surface concrete pouring

Abstract

The utility model relates to the field of engineering construction, in particular to a spliced slip form suitable for overflow surface concrete pouring, which comprises an overflow surface and a slip form system, the slip form system comprises track assemblies and slip form assemblies, the track assemblies and the slip form assemblies are spliced, the track assemblies are arranged on two sides of the overflow surface, and the slip form assemblies are arranged on the overflow surface. The shape of the track assembly is matched with that of the overflow surface, the track assembly comprises a stand column and an I-shaped track, and the stand column and the I-shaped track are connected through a connecting piece; the sliding formwork assembly comprises a supporting frame and a bottom plate, an operation platform is arranged at the rear end of the supporting frame, and clamping heads matched with the I-shaped rails are arranged on the two sides of the supporting frame. The front end of the sliding formwork assembly is connected with an anchoring point arranged at the top of the overflow face through a manual guide chain. The spliced slip form is novel in structure, reasonable in design, convenient to operate and high in safety, the concrete construction quality is guaranteed, common quality problems are avoided, the abrasion resistance and overall stability of structural joints are improved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the field of engineering construction, in particular to a splicing type slip form applicable to the concrete pouring of an overflow surface. Background Technique

[0002] In water conservancy and hydropower construction projects, the overflow surface, as the overflow structure of an overflow dam, is mainly composed of a horizontal surface, an inclined surface or a curved surface; at present, during the process of pouring the overflow surface, according to different overflow surface structures, the formwork installation work needs to be carried out multiple times. Pouring channels and vibrating channels need to be left during formwork installation for concrete pouring construction and vibrating construction. The formwork laying requires a long construction period, resulting in low efficiency of the concrete pouring of the overflow surface and a large amount of manual input; therefore, how to manufacture a splicing type slip form applicable to the concrete pouring of the overflow surface that can solve the problems of the existing technology has become a technical problem to be solved. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the problems existing in the prior art, and provide a splicing type slip form applicable to the concrete pouring of an overflow surface. The splicing type slip form has a novel structure, reasonable design, strong safety, ensures the quality of concrete construction, avoids the occurrence of common quality problems, improves the anti-abrasion and erosion resistance ability of structural joints and the overall stability, and has strong practicability.

[0004] The technical solution of the utility model is realized as follows: a splicing type slip form applicable to the concrete pouring of an overflow surface includes an overflow surface and further includes a slip form system. The slip form system includes a track assembly and a slip form assembly. Both the track assembly and the slip form assembly are of a splicing type. The track assembly is arranged on both sides of the overflow surface. The shape of the track assembly matches that of the overflow surface. The track assembly includes columns and an "I"-shaped track. The columns and the "I"-shaped track are connected through a connecting piece; the slip form assembly includes a support frame and a bottom plate. An operation platform is arranged at the rear end of the support frame. Clamping heads matching the "I"-shaped track are arranged on both sides of the support frame; the front end of the slip form assembly is connected to an anchoring point arranged at the top of the overflow surface through a manual hoist.

[0005] Preferably, a stud is arranged at the lower end of the connecting piece. A threaded hole matching the column is arranged above the column. A backing plate is arranged above the stud. The width of both sides of the backing plate is greater than the width of the column and is the same as the width of the "I"-shaped track. Both sides of the backing plate are connected to the "I"-shaped track through bolts.

[0006] Preferably, the "I"-shaped track is of a splicing type. Adjacent "I"-shaped tracks are connected through fixing plates and bolts arranged on both sides.

[0007] Preferably, a lubricating device is provided at the end of the chuck. The lubricating device includes a spherical lubricating cavity and a lubricating ball. The lubricating cavity is provided at the end of the chuck. A clamping hole is provided at the end of the lubricating cavity. The diameter of the clamping hole is smaller than that of the lubricating cavity. A lubricating ball is provided in the lubricating cavity. An elastic member connected to the lubricating ball is provided in the lubricating cavity. The diameter of the lubricating ball is smaller than that of the lubricating cavity.

[0008] Preferably, the support frame is of a spliced type. The two sides of adjacent support frames are connected by "L"-shaped steel plates and bolts.

[0009] Preferably, one side of the operation platform is connected to the front end of the support frame, and the other side is a free end. The position of the operation platform is higher than that of the bottom plate. A safety fence is provided around the operation platform.

[0010] The utility model provides a spliced slip form applicable to the concrete pouring of an overflow surface. Compared with the prior art, the utility model has the following advantages: The utility model is an improved slip form, which is convenient for construction, has high efficiency, controllable deflection deformation, and guaranteed safety; The structure of the utility model is reasonable, the construction process is highly operable, and the construction quality is easy to control; The utility model adopts the method of double hoists and multi-anchoring point circulation, which ensures the safe and reliable movement of the slip form between the left and right banks, and improves the anti-abrasion ability and overall stability of the structural joints of the newly poured slabs; The utility model is of a spliced structure, which can be assembled as required according to different overflow surface structures and can be reused; Using the utility model greatly saves the formwork erection period, reduces the labor input, saves the construction cost, and has strong practicability. Description of the Drawings

[0011] Figure 1 It is a front view schematic diagram of the slip form system.

[0012] Figure 2 It is a top view schematic diagram of the slip form system.

[0013] Figure 3 It is a side view connection schematic diagram of the track assembly.

[0014] In the figure: 1 - overflow surface, 2 - slip form system, 3 - track assembly, 31 - column, 32 - "I"-shaped track, 33 - connecting piece, 34 - stud, 35 - threaded hole, 36 - backing plate, 37 - fixing plate, 4 - slip form assembly, 41 - support frame, 42 - bottom plate, 43 - operation platform, 44 - "L"-shaped steel plate, 45 - safety fence, 46 - chuck, 47 - lubricating device, 48 - lubricating cavity, 49 - lubricating ball, 50 - clamping hole, 51 - elastic member. Detailed Embodiments

[0015] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "coupled" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] The first embodiment is as Figure 1 , Figure 2 and Figure 3 shown: A spliced slip form applicable to the concrete pouring of an overflow surface includes an overflow surface 1 and also includes a slip form system 2. The slip form system 2 includes a track assembly 3 and a slip form assembly 4. Both the track assembly 3 and the slip form assembly 4 are of a spliced type. The track assembly 3 is arranged on both sides of the overflow surface 1. The shape of the track assembly 3 matches that of the overflow surface 1. The track assembly 3 includes columns 31 and an "I"-shaped track 32. The columns 31 and the "I"-shaped track 32 are connected by a connector 33. The slip form assembly 4 includes a support frame 41 and a bottom plate 42. Formwork baffles are arranged on both sides of the support frame 41. The formwork baffles and the bottom plate 42 form a cavity, which functions as a concrete formwork. An operation platform 43 is arranged at the rear end of the support frame 41. Clamping heads 46 matching the "I"-shaped track 32 are arranged on both sides of the support frame 41. After the clamping heads 46 are connected to the "I"-shaped track 32, they can be engaged with the "I"-shaped track 32 and can also enable the support frame 41 to move along the "I"-shaped track 32. The front end of the slip form assembly 4 is connected to an anchoring point arranged at the top of the overflow surface 1 through a manual chain hoist, and the whole slip form is driven to move by the chain hoist.

[0018] A stud 34 is arranged at the lower end of the connector 33. A threaded hole 35 matching the column 31 is arranged above the column 31. A backing plate 36 is arranged above the stud 34. The widths of both sides of the backing plate 36 are greater than the width of the column 31 and are the same as the width of the "I"-shaped track 32. Both sides of the backing plate 36 are connected to the "I"-shaped track 32 through bolts.

[0019] When assembling, the connecting piece 33 is first connected to the column 31, then the column 31 is fixed to the base surface, and finally the track assembly 3 is connected. The spliced structure of the track assembly 3 makes the overall radian of the track match the designed radian of the overflow surface 1, enabling the natural transition of the radian during the pouring process of the slip form system 2 and the arc-shaped bottom plate 42.

[0020] The "I"-shaped track 32 is of a spliced type, and adjacent "I"-shaped tracks 32 are connected by fixing plates 37 and bolts arranged on both sides.

[0021] A lubricating device 47 is arranged at the end of the chuck 46. The lubricating device 47 includes a spherical lubricating cavity 48 and a lubricating ball 49. The lubricating cavity 48 is arranged at the end of the chuck 46. A clamping hole 50 is arranged at the end of the lubricating cavity 48. The diameter of the clamping hole 50 is smaller than that of the lubricating cavity 48. The lubricating ball 49 is arranged in the lubricating cavity 48. An elastic member 51 connected to the lubricating ball 49 is arranged in the lubricating cavity 48. The diameter of the lubricating ball 49 is smaller than that of the lubricating cavity 48. Under the pressure of the elastic member 51, the lubricating ball 49 abuts against the clamping hole 50. When the slip form moves, the lubricating ball 49 extends out of the clamping hole 50 under the pressure of the elastic member 51 and contacts the "I"-shaped track 32, improving the overall sliding efficiency.

[0022] The support frame 41 is of a spliced type, and the two sides of adjacent support frames 41 are connected by "L"-shaped steel plates 44 and bolts.

[0023] The operating platform 43 is supported by support steel pipes fixedly connected to the support frame 41. One side of the operating platform 43 is connected to the rear end of the support frame 41, and the other side is a free end. The position of the operating platform 43 is higher than that of the bottom plate 42. A safety fence 45 is arranged around the operating platform 43. The operating platform 43 can facilitate personnel to vibrate and finish the surface of the poured concrete.

[0024] Installation of the slip form system 2: The support frame 41 of the slip form assembly 4 adopts a truss structure. The frame is made of channel steel, and the support system is made of angle steel. One unit is 3 - 5 m. The splicing between adjacent units is connected by "L"-shaped steel plates 44 and high-strength screws; a bottom plate 42 is arranged at the bottom of the slip form assembly 4, and concrete precast slabs are used for counterweight on the bottom plate 42; an operating platform 43 is arranged at the rear end of the support frame 41, and chucks 46 matching the "I"-shaped track 32 are arranged on both sides of the support frame 41; the front end of the slip form assembly 4 is connected to the anchoring point arranged at the top of the discharge chute through a manual hoist. Two 10L hoists are used for pulling the slip form, and a 5L anti-overturning hoist is used in the middle. A φ16 round steel pull ring is welded on the front end of the slip form assembly 4. The hoist is connected to the round steel pull ring through a steel wire rope. After the slip form assembly 4 is pulled to the top, an anchoring point is set in the upstream area, and the slip form is transferred by the way of oblique pulling with hoists and steel wire ropes.

[0025] The track assembly 3 is arranged on both sides of the concrete pouring area of the arc-shaped bottom plate 42. The track assembly 3 includes columns 31 and "I"-shaped tracks 32. The columns 31 and the "I"-shaped tracks 32 are connected by connectors 33. The tracks are processed by a bending machine. The two track steels are connected by fixing plates 37. The tracks are connected by cut bolts according to the corresponding coordinates deduced from the curve equation. For the convenience of transportation and installation, it is assembled in sections of 6 m each, so that the shape of the track assembly 3 is an arc matching the arc-shaped bottom plate 42. After the track assembly 3 is installed, the slip form assembly 4 is assembled with the track assembly 3. Clamping heads 46 matching the "I"-shaped tracks 32 are arranged on both sides of the support frame 41 of the slip form assembly 4. After the slip form system 2 is installed, an unloaded test of the slip form system 2 is carried out.

[0026] Concrete pouring: The steel bar grid is fabricated and installed in the pouring area. After the steel bar grid is completed, the concrete transported by the ground pump is conveyed to the pouring bay number. When slip form pouring is adopted, first fill the space at the bottom of the slip form fully, and then continue to pour upstream, allowing the concrete to flow by itself to form a slope. The pouring process is vibrated until the slurry comes out from the exhaust holes at the bottom of the slip form and then stops. After vibration, preliminary leveling and plastering are carried out, and secondary plastering and slurry extraction are carried out with a wooden trowel. After the surface layer of the concrete is initially solidified, surface pressing and smoothing are carried out with an iron trowel. The unevenness is controlled within 3 mm to ensure that the flow surface is smooth, without defects such as air bubbles, pockmarks and stepped joints. After the concrete pouring is completed, the concrete is cured to keep the surface of the concrete moist.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent substitution on some of the technical features. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A spliced ​​slipform suitable for pouring overflow surface concrete, comprising an overflow surface, characterized in that: It also includes a sliding formwork system, which includes a track assembly and a sliding formwork assembly. The track assembly and the sliding formwork assembly are both spliced, and the track assembly is arranged on both sides of the overflow surface. The shape of the track assembly matches the overflow surface. The track assembly includes a column and an "I"-shaped track, and the column and the "I"-shaped track are connected by a connector; the sliding formwork assembly includes a support frame and a base plate, and an operating platform is arranged at the rear end of the support frame, and clamps matching the "I"-shaped track are arranged on both sides of the support frame; the front end of the sliding formwork assembly is connected to an anchor point arranged on the top of the overflow surface through a manual guide chain.

2. A spliced ​​slipform suitable for pouring overflow surface concrete according to claim 1, characterized in that: A stud is arranged at the lower end of the connecting piece, a threaded hole matching the column is arranged above the column, a pad is arranged above the stud, the width of both sides of the pad is greater than the width of the column and is the same as the width of the "I"-shaped track, and both sides of the pad are connected to the "I"-shaped track by bolts.

3. A spliced ​​slipform suitable for pouring overflow surface concrete according to claim 2, characterized in that: The "I"-shaped track is a spliced ​​type, and adjacent "I"-shaped tracks are connected by fixing plates and bolts arranged on both sides.

4. The spliced ​​slipform suitable for pouring overflow surface concrete according to claim 3, characterized in that: A lubrication device is provided at the end of the chuck, and the lubrication device includes a spherical lubrication cavity and a lubrication ball. The lubrication cavity is provided at the end of the chuck, and a clamping hole is provided at the end of the lubrication cavity. The diameter of the clamping hole is smaller than the diameter of the lubrication cavity. A lubrication ball is provided in the lubrication cavity. The lubrication cavity is provided with a lubrication ball and an elastic member connected thereto, and the diameter of the lubrication ball is smaller than the diameter of the lubrication cavity.

5. The spliced ​​slipform suitable for pouring overflow surface concrete according to claim 4, characterized in that: The support frames are of a spliced ​​type, and the two sides of adjacent support frames are connected by "L"-shaped steel plates and bolts.

6. The spliced ​​slipform suitable for pouring overflow surface concrete according to claim 5, characterized in that: One side of the operating platform is connected to the front end of the supporting frame, and the other side is a free end. The position of the operating platform is higher than that of the bottom plate, and a safety fence is arranged around the periphery of the operating platform.

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