Concrete formwork for geogrid reinforced soil retaining wall

Abstract

The utility model relates to the technical field of building construction, and the utility model provides a concrete panel formwork for geogrid reinforced soil retaining wall, it includes panel, fender and fastening sleeve. A plurality of panels are sequentially spliced to form a panel formwork. The number of fenders is several, which are horizontally arranged on the surface of the panel and correspond to the panel one by one. One end of the fender is provided with a bayonet, and the other end of the fender is a clamping end. After the adjacent two panels are spliced, two fenders located on the adjacent two panels are clamped. The clamping end of one of the two fenders is clamped with the opening of the other fender. The fastening sleeve is slidably arranged on the fender and close to the clamping end of the fender. After the adjacent two fenders are clamped, the fastening sleeve can be slid to the bayonet to limit and fix the clamping part of the two fenders. Through the above technical scheme, the technical problem that the length of the fender on the concrete panel is relatively long and a large amount of labor is required during transportation and assembly in the prior art is solved.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of building construction technology, specifically to a concrete panel formwork for a geogrid-reinforced retaining wall. Background Technology

[0002] During the construction of geogrid-reinforced retaining walls, the quality of the concrete panel formwork directly affects the structural stability and appearance flatness of the retaining wall. Currently, the industry mostly adopts a traditional modular structure for the formwork of concrete panels for this type of retaining wall. This involves simply splicing ordinary panels together and then adding multiple retaining rods horizontally to the outside of the panels for fixation. However, this traditional formwork support method has significant technical drawbacks: on the one hand, the support bars are usually designed to be long in order to meet the support strength requirements, which means that more transportation space is needed during the transportation phase, and the weight of a single support bar is large, requiring multiple workers to work together during handling, which consumes a lot of labor costs; on the other hand, due to the large number of support bars, if the installation position of a support bar is deviated or the fixing force is insufficient during the assembly process, it is very easy to cause the overall stress imbalance of the formwork, which in turn causes problems such as bulging and deformation during the pouring of the panel, seriously affecting the forming quality of the concrete panel, and may even cause the formwork to collapse due to local instability, posing a safety hazard.

[0003] Therefore, how to simplify the formwork structure, optimize the assembly process, reduce manpower consumption, and at the same time improve the overall stability of the formwork has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this utility model provide a concrete panel formwork for geogrid reinforced soil retaining walls, which solves the technical problem that the length of the retaining rods on the concrete panel is too long in the prior art, requiring a lot of manpower in the transportation and assembly stages.

[0005] According to one aspect, this utility model embodiment provides a concrete panel formwork for a geogrid-reinforced soil retaining wall, comprising: The panel, wherein there are several panels, and the several panels are sequentially spliced ​​together to form a panel support; The number of stop bars is several. The stop bars are horizontally set on the surface of the panel. Each stop bar corresponds to a panel. One end of the stop bar is provided with a snap-fit ​​opening, and the other end of the stop bar is a snap-fit ​​end. After two adjacent panels are spliced ​​together, the snap-fit ​​end of one of the two stop bars located on the two adjacent panels snaps with the opening of the other stop bar. A fastening sleeve is slidably sleeved on the stop bar and close to the snap-fit ​​end of the stop bar. After two adjacent stop bars are snapped together, the fastening sleeve can slide to the snap-fit ​​position to limit and fix the snap-fit ​​parts of the two stop bars.

[0006] The fastening sleeve includes: A sleeve body is slidably fitted onto the stop rod. One end of the sleeve body is provided with several arc-shaped plates spaced apart on its circumference. The sleeve body is provided with external threads on its outer peripheral wall near the arc-shaped plates. A locking ring is sleeved on the stop rod. The locking ring has a tapered pressing surface inside, and the diameter of the tapered pressing surface gradually decreases from the end near the arc plate to the end away from the arc plate. The inner peripheral wall portion of the locking ring near the arc plate has an internal thread that mates with the external thread of the sleeve. After the locking ring is threadedly connected to the sleeve, the tapered pressing surface can press the arc plate against the outer peripheral wall of the stop rod, so that the locking ring and the stop rod are fixedly connected.

[0007] Also includes: A sealing ring is disposed at the end of the sleeve away from the arc-shaped plate, and the sealing ring is used to seal the gap between the sleeve and the stop rod.

[0008] Also includes: There are several mounting bases, with at least one mounting base provided on each panel. The mounting bases on adjacent panels are at the same horizontal height. The mounting base has mounting holes and is used to fix the stop bar on the panel.

[0009] The mounting base is connected to the panel by bolts.

[0010] The top of the panel has a protrusion, and the bottom of the panel has a groove. The protrusion and the groove of two adjacent panels in the height direction are engaged.

[0011] Each of the two side walls of the panel is provided with a snap-fit ​​plate, and the snap-fit ​​plates on adjacent panels snap together.

[0012] The panel has a receiving groove for accommodating the stop bar.

[0013] The panel has several holes perpendicular to the support surface, which are used to install pre-embedded tie rods.

[0014] The panel is provided with support frames evenly distributed on the side near the stop bar.

[0015] The beneficial effects of the embodiments of this utility model are as follows: In this invention, several panels are sequentially spliced ​​to form a panel support. Several stop bars are horizontally positioned on the panel surface, each stop bar corresponding to a panel. One end of each stop bar has a notch, and the other end is a snap-fit ​​end. After two adjacent panels are spliced, the snap-fit ​​end of one of the two stop bars on the adjacent panels snaps into the opening of the other stop bar. A fastening sleeve is slidably fitted onto the stop bar and close to its snap-fit ​​end. After two adjacent stop bars snap into place, the fastening sleeve can slide to the notch to limit and fix the snap-fit ​​portion of the two stop bars. The modular snap-fit ​​design of the stop bars shortens the required length of the stop bars, solving the technical problem in the prior art where the stop bars on concrete panels are too long, requiring a large amount of manpower during transportation and assembly. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of a concrete panel formwork for a geogrid-reinforced soil retaining wall according to one embodiment of the present invention. Figure 2 for Figure 1 A schematic diagram of the structure of a single panel in the embodiment; Figure 3 for Figure 1 A magnified view of a portion at point A in the embodiment; Figure 4 for Figure 1 The embodiment shows a schematic diagram of the structure of the sleeve, the arc plate, the stop bar, and the sealing ring.

[0018] In the diagram: 1. Panel, 2. Stop bar, 201. Bayonet, 202. Snap-fit ​​end, 3. Fastening sleeve, 301. Sleeve body, 302. Arc plate, 303. Locking ring, 4. Conical extrusion surface, 5. Sealing ring, 6. Mounting base, 601. Mounting hole, 7. Protrusion, 8. Groove, 9. Snap-fit ​​plate, 10. Receiving groove, 11. Hole, 12. Support frame. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0020] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0021] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] like Figure 1 and Figure 3As shown, this invention illustrates a concrete panel formwork for a geogrid-reinforced soil retaining wall according to one embodiment of the present invention, comprising a panel 1, retaining rods 2, and fastening sleeves 3. Several panels 1 are arranged sequentially to form the panel formwork. Several retaining rods 2 are horizontally positioned on the surface of the panel 1 away from the poured concrete and fixedly connected to the panel 1. Each panel 1 has one retaining rod 2, with a notch 201 at one end and a snap-fit ​​end 202 at the other. After two adjacent panels 1 are joined, the snap-fit ​​end 202 of one retaining rod 2 at the same horizontal height on the two adjacent panels 1 snaps into the notch of the other retaining rod 2, providing a condition for the subsequent fixed connection of two adjacent retaining rods 2. The fastening sleeve 3 is slidably sleeved on the stop bar 2 and close to the snap-fit ​​end 202 of the stop bar 2. When two adjacent stop bars 2 are snapped together, the fastening sleeve 3 can slide and cover the snap-fit ​​opening 201. By limiting and fixing the snap-fit ​​parts of the two adjacent stop bars 2, the connection of the two adjacent panels 1 is realized.

[0026] Furthermore, the modular design of the stop bar 2 avoids the problem of inconvenient transportation caused by its excessive length, thus improving transportation efficiency. Additionally, excessive length of the stop bar 2 leads to uneven stress distribution, making it prone to bending and increasing installation difficulty. This problem is avoided by using a splicing design of several shorter stop bars 2. The prefabricated design of the stop bar 2 fixed to the panel 1 eliminates the connection and installation process between the stop bar 2 and the panel 1, shortening construction time and further improving construction efficiency. Furthermore, the number of stop bars 2 on the same panel 1 can be two or more, symmetrically arranged. Increasing the number of stop bars improves the connection strength of the panel 1, and the pressure of the concrete poured within the formwork on the panel 1 is evenly distributed by the two or more stop bars. Furthermore, the stop bar 2 can be designed as a tubular structure with the opening direction of its latch 201 vertically upward. When the latching end 202 on an adjacent stop bar 2 engages with the latch 201, the latch 201 provides upward support and positioning for the latching end 202.

[0027] like Figure 3 and Figure 4As shown, the fastening sleeve 3 includes a sleeve body 301 and a locking ring 303. The sleeve body 301 is slidably sleeved on the stop rod 2. A number of arc-shaped plates 302 are arranged at intervals around one end of the sleeve body 301. The arc-shaped plates 302 are concentrically arranged with the sleeve body 301. The arc-shaped plates 302 can be deformed by the pressure of the locking ring 303. The sleeve body 301 has external threads on the outer peripheral wall near the arc-shaped plates 302. The sleeve body 301 can slide along the stop rod 2 so that the sleeve body 301 fits into the engagement point of two adjacent stop rods 2. A locking ring 303 is sleeved on a stop rod 2 near one end of the arc-shaped plate 302. The inner circumferential wall of the locking ring 303 near the arc-shaped plate 302 has an internal thread that mates with the external thread on the sleeve 301. The inner circumferential wall of the locking ring 303 has a conical pressing surface 4 corresponding to the arc-shaped plate 302. The diameter of the conical pressing surface 4 gradually decreases from the end near the arc-shaped plate 302 to the end away from the arc-shaped plate 302. After the internal thread on the locking ring 303 mates with the external thread on the sleeve 301, the conical pressing surface 4 axially presses several arc-shaped plates 302 onto the outer circumferential wall of the stop rod 2, so that several arc-shaped plates 302 are tightly attached to and fixed to the stop rod 2. In this way, the sleeve 301 and the stop rod 2 are fixed together, so as to fix the snap joint of the two stop rods 2.

[0028] Furthermore, the sleeve 301 fits onto two adjacent stop bars 2 and locks them in place via a locking ring 303. This not only secures the stop bars 2 but also limits the position of the panel 1 connected to them. This fixing method is more labor-saving and easier to operate than the existing method using long stop bars 2, thus improving construction efficiency. The spacing between the arc-shaped plates 302 on the sleeve 301 should be relatively wide to provide sufficient clearance for the arc-shaped plates 302 to deform under the axial pressure of the conical extrusion surface 4, thereby pressing the stop bars 2. This prevents the arc-shaped plates 302 from contacting each other and offsetting the pressure during the compression process. Additionally, the concentric arrangement of the arc-shaped plates 302 with the sleeve 301 ensures that the arc-shaped plates 302 can evenly press the stop bars 2 under axial pressure, thereby strengthening the fit of the sleeve 301 onto the stop bars 2.

[0029] Specifically, such as Figure 3 and Figure 4 As shown, the fastening sleeve 3 also has a sealing ring 5. The sealing ring 5 is disposed on the inner peripheral wall of the sleeve body 301. When the fastening sleeve 3 slides and engages with the retaining rod 2 at the retaining groove 201, the sealing ring 5 is tightly fitted onto the outer peripheral wall of the retaining rod 2 near the retaining groove 201 by its own friction. Due to its rubber material, the sealing ring 5 also has a buffering effect. When the pressure of the concrete poured inside the formwork is transmitted to the retaining rod 2 on the panel 1, the sealing ring 5, in cooperation with the sleeve body 301, disperses and buffers the pressure on the retaining rod 2.

[0030] like Figure 1As shown, there are several mounting bases 6, with multiple mounting bases 6 on each panel 1. The mounting bases 6 on adjacent panels 1 are at the same horizontal height to facilitate the engagement of two stop bars 2 on subsequent adjacent panels 1. Each mounting base 6 has a mounting hole 601, which is shaped to mate with the stop bar 2. The mounting base 6 is fixedly connected to the panel 1, thereby fixing the stop bar 2 within the mounting hole 601 onto the panel 1. Specifically, the mounting base 6 is connected to the panel 1 by bolts. This detachable mounting base 6 facilitates the replacement of damaged stop bars 2. The mounting base 6 keeps the stop bar 2 relatively fixed to the panel 1 by pressing it against the mounting hole 601.

[0031] like Figure 1 and Figure 2 As shown, panel 1 has a protrusion 7 on the top and a groove 8 on the bottom. There are several protrusions 7 and grooves 8 of the same number, and their positions and dimensions correspond to each other. When two panels 1 are joined vertically, the protrusions 7 and grooves 8 engage. This engagement design of the protrusions 7 and grooves 8 serves a positioning function when two panels 1 are joined vertically. Furthermore, considering that the bottom of panel 1 needs to contact the ground, the grooves 8 are located at the bottom to facilitate installation of panel 1 on the ground.

[0032] like Figure 1 and Figure 2 As shown, snap-fit ​​plates 9 are provided on both side walls of panel 1, and the snap-fit ​​plates 9 on adjacent panels 1 can snap together. When two panels 1 are assembled side by side, the snap-fit ​​plates 9 also serve to position the two panels 1. Specifically, the snap-fit ​​plates 9 on two adjacent panels 1 have an overlapping and covered structure. When assembling two adjacent panels 1, the overlapping situation of the two adjacent snap-fit ​​plates 9 can be observed to confirm whether the two panels 1 are fully assembled.

[0033] like Figure 1 and Figure 2 As shown, the panel 1 also has a receiving groove 10 for accommodating the stop bar 2. The receiving groove 10 cooperates with the mounting base 6 to position and fix the stop bar 2. The opening of the receiving groove 10 facilitates the installation of the stop bar 2.

[0034] like Figure 1 and Figure 2 As shown, the panel 1 has several holes 11 perpendicular to the support surface. These holes 11 are used to install embedded tie rods. The holes 11 are made according to the construction conditions. The inner circumferential wall of the holes 11 has threads, which are used to fix one end of the tie rod to the panel 1. The other end of the tie rod is welded to the embedded steel mesh. The two ends of the tie rod are fixedly connected to the panel and the embedded steel mesh, respectively, thus sharing the pressure of the poured concrete in the vertical direction of the formwork panel 1.

[0035] like Figure 1 and Figure 2 As shown, support frames 12 are evenly distributed on the side of panel 1 near the stop bar 2. There are several support frames 12, arranged at equal intervals along the horizontal and vertical directions. The presence of the support frames 12 makes the panel 1 more stable under force, and the receiving grooves 10 are formed on the support frames 12. The grooves formed between the several support frames 12 also provide a force point for the support steel pipes that are inclined to the ground.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A concrete panel formwork for geogrid-reinforced soil retaining walls, characterized in that, include: Panel (1), the number of panels (1) is several, and several panels (1) are spliced ​​together in sequence to form panel (1) support; A stop bar (2) is provided. The number of stop bars (2) is several. The stop bars (2) are horizontally arranged on the surface of the panel (1). The stop bars (2) correspond one-to-one with the panel (1). One end of the stop bar (2) is provided with a slot (201). The other end of the stop bar (2) is a snap-fit ​​end (202). After two adjacent panels (1) are spliced ​​together, the snap-fit ​​end (202) of one of the two stop bars (2) located on the two adjacent panels (1) is snapped with the slot (201) of the other stop bar (2). A fastening sleeve (3) is slidably sleeved on the stop rod (2) and close to the snap-fit ​​end (202) of the stop rod (2). After two adjacent stop rods (2) are snapped together, the fastening sleeve (3) can slide to the snap-fit ​​opening (201) to limit and fix the snap-fit ​​parts of the two stop rods (2).

2. The concrete panel formwork for a geogrid-reinforced soil retaining wall according to claim 1, characterized in that, The fastening sleeve (3) includes: Sleeve (301), the sleeve (301) is slidably sleeved on the stop rod (2), and a number of arc plates (302) are arranged at intervals around one end of the sleeve (301). The sleeve (301) has an external thread on the outer peripheral wall near the arc plate (302). A locking ring (303) is sleeved on the stop rod (2). The locking ring (303) has a conical extrusion surface (4) inside. The diameter of the conical extrusion surface (4) gradually decreases from the end near the arc plate (302) to the end away from the arc plate (302). The inner peripheral wall of the locking ring (303) near the arc plate (302) is provided with an internal thread that is threaded to the external thread of the sleeve (301). After the locking ring (303) is threaded to the sleeve (301), the conical extrusion surface (4) can press the arc plate (302) onto the outer peripheral wall of the stop rod (2) so that the locking ring (303) and the stop rod (2) are fixedly connected.

3. A concrete panel formwork for a geogrid-reinforced soil retaining wall according to claim 2, characterized in that, Also includes: A sealing ring (5) is provided at one end of the sleeve (301) away from the arc plate (302). The sealing ring (5) is used to seal the gap between the sleeve (301) and the stop rod (2).

4. A concrete panel formwork for a geogrid-reinforced soil retaining wall according to claim 1, characterized in that, Also includes: There are several mounting bases (6), and at least one mounting base (6) is provided on each panel (1). The mounting bases (6) on adjacent panels (1) are at the same horizontal height. The mounting base (6) has a mounting hole (601). The mounting base (6) is used to fix the stop bar (2) on the panel (1).

5. A concrete panel formwork for a geogrid-reinforced soil retaining wall according to claim 4, characterized in that, The mounting base (6) is connected to the panel (1) by bolts.

6. A concrete panel formwork for a geogrid-reinforced soil retaining wall according to claim 1, characterized in that, The top of the panel (1) has a protrusion (7) and the bottom of the panel (1) has a groove (8). The protrusion (7) and the groove (8) of two adjacent panels (1) in the height direction are engaged.

7. A concrete panel formwork for a geogrid-reinforced soil retaining wall according to claim 1, characterized in that, Each of the two side walls of the panel (1) is provided with a snap-fit ​​plate (9), and the snap-fit ​​plates (9) on adjacent panels (1) snap together with each other.

8. A concrete panel formwork for a geogrid-reinforced soil retaining wall according to claim 1, characterized in that, The panel (1) has a receiving groove (10) for accommodating the stop bar (2).

9. A concrete panel formwork for a geogrid-reinforced soil retaining wall according to claim 1, characterized in that, The panel (1) has holes (11) perpendicular to the panel (1), and there are several holes (11). The holes (11) are used to install pre-embedded tie rods.

10. A concrete panel formwork for a geogrid-reinforced soil retaining wall according to claim 1, characterized in that, The panel (1) is provided with support frames (12) evenly distributed on the side near the stop bar (2).

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