Panel placement slipform construction method

Abstract

A panel pouring slip form construction method, comprising the following steps: 1) bottom mold installation; 2) concrete pouring; 3) traction motor traction slip form panel; 4) the first pouring block is vibrated and troweled; 5) traction mold advances, forming a secondary pouring area; 6) repeating steps 2) to 5), completing the secondary pouring operation; 7) repeating steps 2) to 6), completing the slope protection slip form pouring construction. The application adopts the above method, which can solve the problems of poor stability of the slip form, influence of the concrete floating force on the construction and complicated control of the traction mechanism control system in the prior art, and realizes more convenient and stable panel pouring slip form construction.

Description

[0001] This invention is a divisional application of "Slipform Construction System and Method for Panel Casting" (Application No.: 2021104845331; Application Date: 2021-04-30). Technical Field

[0002] This invention relates to the field of slope protection concrete construction technology, specifically a slipform construction method for panel casting. Background Technology

[0003] In large-scale slope protection projects, the use of grouted rubble masonry and mortar-grouted masonry for slope protection has become increasingly problematic due to rising labor costs and difficulties in ensuring the quality of grouted rubble concrete pouring. As a result, most projects have switched to concrete slope protection. Concrete slopes require high overall stability, and long slopes are usually divided into multiple levels of walkways. To ensure the integrity and durability of the slope protection concrete, continuous pouring is often necessary during construction.

[0004] Currently, slipform construction is commonly used for continuous concrete pouring on long slopes. Slipforms are generally classified into track-based and trackless types based on their movement, and into hydraulic jack-lifting and winch-traction types based on their lifting power. Because traditional track-based slipforms are cumbersome in actual construction, requiring additional sliding tracks, trackless slipforms are generally preferred. Traditional trackless slipforms utilize wooden tracks or pre-cast concrete blocks on both sides to support, guide, and control the pouring thickness of the concrete panel. However, in actual construction, it is difficult to guarantee the stability and safety of the entire slipform system. Furthermore, it is difficult to properly address issues such as concrete buoyancy, aggregate segregation during concrete placement, and minimizing panel cracks. It also makes it difficult to ensure that the slope concrete is poured in one go, and the formwork is inconvenient to transport. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a slipform construction method for panel casting, which can solve the problems of poor slipform stability, the impact of concrete buoyancy on construction, and the cumbersome control of the traction mechanism control system in the prior art, and realize a more convenient and stable slipform construction method for panel casting.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a slipform construction method for panel casting, characterized by comprising the following steps: 1) Set up a template at the bottom of the slope to be constructed, and install the mold on top of the template to form a rectangular pouring area; 2) Carry out concrete pouring operations within the pouring area; 3) After the pouring and curing are completed, start the stepper traction motor in the traction mechanism. The first action of the stepper traction motor will pull the sliding formwork panel forward to the top of the pre-poured area. 4) During the traction process of the slipform panel, the construction workers located on the mesh plate in the slipform panel vibrate the pre-cast block through the first and second through holes, and after vibration, they smooth the surface of the pre-cast block through the continuously rising slipform troweling panel. 5) After the pre-cast block has completed its curing, the stepper motor will move forward for the second time to pull the mold forward, forming a secondary casting area between the pre-cast block and the mold; 6) Repeat steps 2)-5) in the secondary pouring area to complete the secondary pouring operation; 7) Repeat steps 2)-6) to complete the slipform pouring construction for the slope protection; After step 5) is completed, the template set in step 1) is removed after the stepper traction motor moves the mold.

[0007] In a preferred embodiment, the construction device includes a mold, a sliding formwork panel, a sliding formwork troweling panel, and a traction mechanism. The mold is a U-shaped frame structure with its opening facing the sliding formwork panel. A sliding formwork troweling panel is fixed on the side of the sliding formwork panel away from the mold. The sliding formwork panel and the sliding formwork troweling panel are each connected to the traction mechanism via a traction rope.

[0008] In a preferred embodiment, the bottom of the sliding panel is a rectangular frame structure composed of two parallel transverse channel steels and two connecting channel steels perpendicular to the two transverse channel steels and respectively set at both ends of the transverse channel steels. An angle steel is provided on each of the two connecting channel steels at both ends of the transverse channel steel. The vertical section of the angle steel is connected to the transverse channel steel by bolts. The bottom of the horizontal section of the angle steel is provided with a sliding groove, which is installed on both sides of the mold.

[0009] In the preferred embodiment, both transverse channel steels are provided with longitudinal channel steels at both ends, and oblique angle steels arranged in a cross shape are provided between the two longitudinal channel steels located at the same end of the sliding panel.

[0010] In a preferred embodiment, multiple connecting I-beams perpendicular to the transverse channel steel are provided at equal intervals between the two transverse channel steels. The two ends of the connecting I-beams are welded to the transverse channel steels. The multiple connecting I-beams divide the sliding panel into multiple compartments. Each compartment has a bottom plate with a first through hole.

[0011] In a preferred embodiment, the base plate is provided with base plate fixing components with an "L" shaped cross section on both sides, and the base plate fixing components on both sides of the base plate are fixed to the lower flange of the connecting I-beam or connecting channel steel by bolts.

[0012] In a preferred embodiment, connecting rods are bolted to two longitudinal channel steels on one side of the sliding mold panel. The connecting rods extend horizontally to the side away from the sliding mold panel and then extend obliquely downward to be fixedly connected to the sliding mold panel.

[0013] In a preferred embodiment, the top surface of the sliding mold panel is provided with a mesh plate, and the mesh plate is provided with a second through hole. The number of the second through holes is the same as that of the first through holes, and they are arranged in the same vertical position in a one-to-one correspondence.

[0014] In a preferred embodiment, the traction mechanism includes two parallel and vertical plates, with three horizontal shafts between the two plates. One end of the middle horizontal shaft is connected to the shaft of a stepper traction motor, and the other end passes through the outer wall of one side of the plate and is equipped with a half gear. One end of the two upper and lower horizontal shafts is equipped with gears that mesh with the half gears. The upper and lower horizontal shafts are equipped with rope winding wheels on the portions between the two plates. Two traction ropes connecting the sliding mold panel and the sliding mold trowel panel are respectively wound around the two rope winding wheels. The other end of the two horizontal shafts located above and below is provided with ratchet wheels, and the upright plate is provided with pawls that cooperate with the ratchet wheels.

[0015] The slipform construction method for panel casting proposed in this invention, by adopting the above-mentioned structure and method, has the following beneficial effects: (1) The counterweight of the slipform can be set on the bottom plate of the slipform panel and a construction platform is formed by the mesh plate. This ensures that the slipform has sufficient self-weight while the counterweight will not affect the operation of the construction personnel. (2) The sliding form is composed of high-strength members such as I-beams and channel steel and is equipped with diagonal angle steel, which can effectively improve the rigidity of the sliding form and ensure that the sliding form will not twist during the movement. (3) The traction mechanism realizes the purpose of automated intermittent traction of the slipform panel and the slipform plastering panel. No control system is required, which can ensure the continuity of construction, improve construction efficiency and speed up construction progress. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the sliding panel structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the base plate structure of the present invention.

[0019] Figure 4 This is a schematic diagram of the traction mechanism structure of the present invention.

[0020] Figure 5 This is a schematic diagram of the ratchet and pawl structure in the traction mechanism of the present invention.

[0021] In the diagram: Mold 1, First flange 101, Sliding mold panel 2, Second flange 102, Sliding mold trowel panel 3, Traction mechanism 4, Transverse channel steel 5, Connecting channel steel 6, Angle steel 7, Sliding groove 701, Longitudinal channel steel 8, Diagonal angle steel 9, Connecting I-beam 10, Base plate 11, Base plate fixing component 12, First through hole 13, Mesh plate 14, Second through hole 15, Connecting rod 16, Vertical plate 17, Horizontal shaft 18, Rope wheel 19, Traction rope 20, Half gear 21, Gear 22, Stepper traction motor 23, Ratchet 24, Pawl 25. Detailed Implementation

[0022] Example 1: The slipform construction method for panel casting includes the following steps: 1) Set up a template at the bottom of the slope to be constructed, and install mold 1 on top of the template to form a rectangular pouring area; 2) Carry out concrete pouring operations within the pouring area; 3) After the pouring and curing are completed, start the stepper traction motor 23 in the traction mechanism 4. The stepper traction motor 23 will pull the sliding formwork panel 2 forward to the top of the pre-poured area for the first time. 4) During the traction process of the slipform panel 2, the construction personnel located on the mesh plate 14 in the slipform panel 2 vibrate the pre-cast block through the first through hole 13 and the second through hole 15, and after vibration, smooth the surface of the pre-cast block through the continuously rising slipform troweling panel 3. 5) After the pre-cast block has completed its curing, the stepper traction motor 23 will move forward for the second time to pull the mold 1 forward, forming a secondary casting area between the pre-cast block and the mold 1; 6) Repeat steps 2)-5) in the secondary pouring area to complete the secondary pouring operation; 7) Repeat steps 2)-6) to complete the slipform pouring construction for the slope protection; After step 5) is completed, when the stepper traction motor 23 pulls the mold 1 to move, the template set in step 1) is removed.

[0023] In the above steps, after the secondary pouring area in step 5) is formed, the steel mesh is erected at the ends of the anchor rods on the slope before pouring. In the above steps, when performing the pouring operation in step 2), the mold 1 can be passed through the cam on the motor with the cam mechanism. During the pouring process, the mechanism ensures that the mold 1 vibrates slightly to avoid the concrete sticking to the mold.

[0024] Example 2: like Figure 1The construction system based on the panel casting slipform construction method described in Embodiment 1 includes a mold 1, a slipform panel 2, a slipform plastering panel 3, and a traction mechanism 4. The mold 1 is a "U" shaped frame structure, with the opening of the mold 1 facing the slipform panel 2. The slipform plastering panel 3 is fixed on the side of the slipform panel 2 away from the mold 1. The slipform panel 2 and the slipform plastering panel 3 are respectively connected to the traction mechanism 4 by a traction rope 20.

[0025] Example 3: like Figure 2 In this embodiment, based on embodiment 2, the bottom of the sliding panel 2 is a rectangular frame structure composed of two parallel transverse channel steels 5 and two connecting channel steels 6 perpendicular to the two transverse channel steels 5 and respectively set at both ends of the transverse channel steels 5. An angle steel 7 is provided on each of the two connecting channel steels 6 at both ends of the transverse channel steel 5. The vertical section of the angle steel 7 is connected to the transverse channel steel 5 by bolts. The bottom of the horizontal section of the angle steel 7 is provided with a sliding groove 701, which is placed on both sides of the mold 1.

[0026] In the preferred embodiment, both transverse channel steels 5 are provided with longitudinal channel steels 8 at both ends, and oblique angle steels 9 arranged in a cross shape are provided between the two longitudinal channel steels 8 located at the same end of the sliding panel 2.

[0027] In a preferred embodiment, multiple connecting I-beams 10 perpendicular to the transverse channel steels 5 are provided at equal intervals between the two transverse channel steels 5. The two ends of the connecting I-beams 10 are welded to the transverse channel steels 5. The multiple connecting I-beams 10 divide the sliding panel 2 into multiple compartments. Each compartment has a bottom plate 11 at the bottom, and the bottom plate 11 has a first through hole 13.

[0028] Preferred solutions include Figure 3 In the process, the base plate 11 is provided with base plate fixing parts 12 with an "L" shaped cross section on both sides. The base plate fixing parts 12 on both sides of the base plate 11 are fixed to the lower flange of the connecting I-beam 10 or the connecting channel steel 6 by bolts.

[0029] In a preferred embodiment, a connecting rod 16 is fixed to two longitudinal channel steels 8 on one side of the sliding mold panel 2 by bolts. The connecting rod 16 extends horizontally to the side away from the sliding mold panel 2 and extends obliquely downward to be fixedly connected to the sliding mold panel 3.

[0030] In a preferred embodiment, a mesh plate 14 is provided on the top surface of the sliding panel 2, and a second through hole 15 is provided on the mesh plate 14. The number of second through holes 15 is the same as that of first through holes 13, and they are arranged in the same vertical position in a one-to-one correspondence.

[0031] Example 4: like Figure 4In this embodiment, based on embodiment 1, the traction mechanism 4 includes two parallel and vertical plates 17, with three horizontal shafts 18 between the two plates 17. One end of the middle horizontal shaft 18 is connected to the shaft of the stepper traction motor 23, and the other end passes through to the outer wall of one side of the plate 17 and is provided with a half gear 21. One end of the two upper and lower horizontal shafts 18 is provided with a gear 22, which meshes with the half gear 21. The upper and lower horizontal shafts 18 are provided with rope winding wheels 19 on the part between the two plates 17. The two traction ropes 20 connecting the sliding mold panel 2 and the sliding mold smearing panel 3 are respectively wound around the two rope winding wheels 19. The other ends of the two horizontal shafts 18 located above and below are provided with ratchet 24, and the vertical plate 17 is provided with pawl 25 that cooperates with the ratchet 24.

Claims

1. A method of panel placement slipform construction, characterised by Includes the following steps: 1) Set up a template at the bottom of the slope to be constructed, and install the mold (1) on top of the template to form a rectangular pouring area; 2) Carry out concrete pouring operations within the pouring area; 3) After the pouring and curing are completed, start the stepper traction motor (23) in the traction mechanism (4). The stepper traction motor (23) pulls the sliding formwork panel (2) forward to the top of the pre-poured area for the first time. 4) During the traction process of the slipform panel (2), the construction personnel located on the mesh plate (14) in the slipform panel (2) vibrate the pre-cast block through the first through hole (13) and the second through hole (15), and after vibration, smooth the surface of the pre-cast block through the continuously rising slipform troweling panel (3); 5) After the pre-cast block has completed its curing, the stepper traction motor (23) pulls the mold (1) forward for the second time, forming a secondary casting area between the pre-cast block and the mold (1); 6) Repeat steps 2)-5) in the secondary pouring area to complete the secondary pouring operation; 7) Repeat steps 2)-6) to complete the slipform pouring construction for the slope protection; After step 5) is completed, when the stepper traction motor (23) pulls the mold (1) to move, the template set in step 1) is removed.

2. A panel form sliding method according to claim 1, wherein: The construction device includes a mold (1), a sliding formwork panel (2), a sliding formwork trowel (3), and a traction mechanism (4). The mold (1) is a "U" shaped frame structure. The opening of the mold (1) faces the sliding formwork panel (2). The sliding formwork trowel (3) is fixed on the side of the sliding formwork panel (2) away from the mold (1). The mold (1) and the sliding formwork panel (2) are respectively connected to the traction mechanism (4) by a traction rope (20).

3. A panel form sliding method according to claim 1, wherein: The bottom of the sliding panel (2) is a rectangular frame structure composed of two parallel transverse channel steels (5) and two connecting channel steels (6) perpendicular to the two transverse channel steels (5) and respectively set at both ends of the transverse channel steels (5). An angle steel (7) is provided on each of the two connecting channel steels (6) at both ends of the transverse channel steel (5). The vertical section of the angle steel (7) is connected to the transverse channel steel (5) by bolts. The bottom of the horizontal section of the angle steel (7) is provided with a sliding groove (701). The sliding groove (701) is placed on both sides of the mold (1).

4. A panel form sliding method according to claim 3, wherein: The two transverse channel steels (5) are provided with longitudinal channel steels (8) at both ends, and the two longitudinal channel steels (8) located at the same end of the sliding panel (2) are provided with oblique angle steels (9) arranged in a cross shape.

5. A panel form sliding method according to claim 3, wherein: Multiple connecting I-beams (10) perpendicular to the transverse channel steel (5) are provided at equal intervals between the two transverse channel steels (5). The two ends of the connecting I-beams (10) are welded to the transverse channel steel (5). The multiple connecting I-beams (10) divide the sliding panel (2) into multiple compartments. Each compartment has a bottom plate (11) at the bottom, and the bottom plate (11) has a first through hole (13).

6. A panel form sliding method according to claim 5, wherein: The base plate (11) is provided with base plate fixing parts (12) with an "L" shaped cross section on both sides. The base plate fixing parts (12) on both sides of the base plate (11) are fixed to the lower flange of the connecting I-beam (10) or connecting channel steel (6) by bolts.

7. A panel form sliding method according to claim 3, wherein: The two longitudinal channel steels (8) on one side of the sliding form panel (2) are fixed with connecting rods (16) through bolts, the connecting rods (16) extend horizontally to the side away from the sliding form panel (2) and extend outward and downward at an angle to be fixedly connected with the sliding form finishing panel (3).

8. A panel form sliding method according to claim 5, wherein: The top surface of the sliding form panel (2) is provided with a mesh plate (14), the mesh plate (14) is provided with second through holes (15), the second through holes (15) are arranged in the same vertical position in one-to-one correspondence with the first through holes (13) in the same number.

9. A panel form sliding method according to claim 1, wherein: The traction mechanism (4) comprises two parallel and vertical vertical plates (17), three horizontal shafts (18) are arranged between the two vertical plates (17), one end of the horizontal shaft (18) located in the middle is connected with the shaft of the stepping traction motor (23), the other end is arranged on the outer wall of one side of the vertical plate (17) and provided with a half gear (21), one end of the two horizontal shafts (18) located above and below is provided with a gear (22), the gear (22) is engaged with the half gear (21), the two horizontal shafts (18) located above and below are provided with rope winding wheels (19) on the part between the two vertical plates (17), the two traction ropes (20) connected with the mold (1) and the sliding form panel (2) are wound on the two rope winding wheels (19) respectively; The other end of the two horizontal shafts (18) located above and below is provided with a ratchet wheel (24), the vertical plate (17) is provided with a ratchet pawl (25) matched with the ratchet wheel (24).

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