Single-face formwork erecting device of stepped surface protecting wall

Abstract

The utility model belongs to the technical field of slope protection engineering. In order to solve the problems that an existing formwork is long in construction period and prone to formwork shifting and sliding, the single-face formwork erecting device of the stepped surface protecting wall is provided and comprises a formwork, a tying structure and a supporting structure, the single-face formwork erecting device is applied to a multi-level step, and a concrete pouring space is formed between the formwork and a slope surface; the tie structure comprises a tie bar assembly and a plurality of anchoring bars, the anchoring bars are evenly arranged in the extending direction of the slope toe, the tie bar assembly comprises a plurality of first tie bars and a plurality of second tie bars, the first tie bars are evenly arranged between the anchoring bars and the formwork, and the second tie bars are evenly arranged between the formwork and the slope. The supporting structures are obliquely arranged on the inner side and the outer side of the formwork. The device is easy to construct, safe and efficient, the construction period is shortened, and cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of slope protection engineering technology, and in particular relates to a single-sided formwork support device for a stepped retaining wall. Background Technology

[0002] A retaining wall is a wall constructed to cover various soft rock layers and relatively broken excavated slopes to protect them from atmospheric influence and prevent further weathering. Besides its own weight, the wall does not bear any other loads or pressure from behind it. Therefore, this type of wall has a single function and a lower grade. However, the formwork erection process is relatively complicated during construction. If double-sided formwork is used for tensioning, the construction procedures are numerous and the construction period is long. When using single-sided formwork, anchors are driven into the slope for tensioning. The drawback is that the soil layer cannot provide effective pull-out resistance when it is weak or disturbed, and the anchor points are prone to slippage, causing problems such as formwork running away or slipping. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a single-sided formwork support device for a stepped retaining wall that improves construction efficiency and safety.

[0004] This utility model provides a single-sided formwork device for a stepped retaining wall, including a template, a tie structure and a support structure. The single-sided formwork device is applied to a multi-level stepped structure, and a space for pouring concrete is formed between the template and the slope.

[0005] The tie structure includes a tie assembly and multiple anchor bars. The multiple anchor bars are evenly arranged along the extension direction of the slope toe. The tie assembly includes multiple first tie bars and multiple second tie bars. The multiple first tie bars are evenly arranged between the anchor bars and the template, and the multiple second tie bars are evenly arranged between the template and the slope surface.

[0006] The support structure is inclinedly arranged on the inner and outer sides of the template.

[0007] Optionally, the support structure of the first step includes a plurality of first support members and a plurality of second support members. The plurality of first support members are respectively inclinedly disposed between the plurality of anchor bars and the ground, and the plurality of second support members are respectively inclinedly disposed between the outer side of the template and the ground.

[0008] Optionally, it also includes multiple positioning ribs, which are evenly arranged on the ground along the extension direction of the wall base, and the template is set to fit the outer side of the multiple positioning ribs.

[0009] Optionally, the support structure of a two-level or higher staircase includes multiple third support members, which are respectively inclinedly arranged between the multiple anchor bars and the ground.

[0010] Optionally, multiple anchor bars of the second-level and higher-level steps are vertically inserted into the next higher step, with the insertion depth of the anchor bars being 1 / 2 of their length, and the insertion position of the anchor bars being located at 3 / 4 of the distance from the template to the slope.

[0011] Optionally, the junction between the template of the second-level and higher-level steps and the next level step is filled with sealing and cushioning components.

[0012] Optionally, the template is provided with vent holes.

[0013] Optionally, the template has multiple back ribs evenly distributed on its outer side, and the multiple back ribs are arranged along the horizontal extension direction of the tie rod assembly on the template.

[0014] Optionally, the tie rod assembly is provided with a fastener on the anchoring end extending from the back rib, and the fastener is provided with threads on its outer side.

[0015] Optionally, after removing the threads, fasteners, back braces, and template, the anchoring end of the tie rod assembly is connected to a hook.

[0016] The technical solution provided by this utility model embodiment has the following advantages compared with the prior art:

[0017] This utility model provides a single-sided formwork device for a stepped facing wall. This single-sided formwork device includes a template, a tie structure, and a support structure. Both the tie structure and the support structure can be processed using waste steel bar scraps. By adding steel bars to plain concrete, the rigidity of the wall is improved.

[0018] This single-sided formwork support device supports multiple levels of steps, employing alternating layered and segmented construction to allow sufficient curing time for the newly poured wall. This single-sided formwork replaces the traditional double-sided formwork. By installing support and tie structures on the inside of the formwork, the tie rod components provide inward tension to the formwork, while the support structure provides support to the formwork and anchor bars, improving the stability of the formwork and preventing slippage of vertically installed anchor bars. This ensures the overall stability of the single-sided formwork support device. This device is simple to construct, safe, efficient, shortens the construction period, and reduces costs. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of a single-sided formwork support device for a stepped facing wall according to an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0023] Figure 3 This is a schematic diagram of the single-sided formwork structure for the two-stage ladder described in this embodiment of the invention;

[0024] Figure 4 This is a schematic diagram of the hook structure according to an embodiment of the present utility model.

[0025] Among them, 1. positioning bar; 2. anchor bar; 3. first support member; 4. second tie bar; 5. formwork; 6. anchor end; 7. fastener; 8. first tie bar; 9. second support member; 10. back rib; 11. first step; 12. hook; 13. third support member. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0028] Reference Figures 1 to 4 As shown, this embodiment provides a single-sided formwork device for a stepped facing wall, including a template, a tie structure, and a support structure. The single-sided formwork device is applied to multi-level steps.

[0029] A space for pouring concrete is formed between the template 5 and the slope. The tie structure includes a tie assembly and multiple anchor bars 2. The multiple anchor bars 2 are evenly arranged along the extension direction of the slope toe. The tie assembly includes multiple first tie bars 8 and multiple second tie bars 4. The multiple first tie bars 8 are evenly arranged between the anchor bars 2 and the template 5, and the multiple second tie bars 4 are evenly arranged between the template 5 and the slope. The support structure is inclinedly arranged on the inner and outer sides of the template 5.

[0030] Among them, reference Figure 2 As shown, when supporting the formwork on one side of the first-level step 11, multiple positioning bars 1 are evenly arranged on the ground along the extension direction of the wall foundation. The formwork 5 is set against the outer side of the multiple positioning bars 1, that is, the formwork 5 rests against the outer side of the multiple positioning bars 1, which provides temporary support for the formwork 5. Then, multiple anchor bars 2 are set on the ground inside the formwork 5, and the multiple anchor bars 2 are evenly arranged along the extension direction of the slope toe. A first tie bar 8 is set between the multiple anchor bars 2 and the formwork 5. The first tie bar 8 is used to provide inward tension to the formwork 5. A second tie bar 4 is pre-embedded on the formwork 5 above the anchor bars 2. The second tie bar 4 passes through the formwork 5 and is anchored to the slope. In order to prevent the anchor bar 2 from slipping during the tying process, a first support member 3 is inclinedly set between the anchor bar 2 and the ground. The first support member 3, the anchor bar 2 and the ground form a triangle. The first support member 3 can provide support for the anchor bar 2. This support force and the tension provided by the first tie bar 8 to the anchor bar 2 can keep the anchor bar 2 in balance. When the soil layer is weak or disturbed, the slope cannot provide effective pull-out resistance. The anchor point of the anchor bar 2 is prone to slipping, causing the formwork to run away or bulge. In order to ensure the overall stability of the formwork 5, a second support member 9 is inclinedly set between the outer side of the formwork 5 and the ground.

[0031] In this embodiment, the template 5 is provided with four positions evenly arranged from bottom to top along the vertical direction. One end of the tie rod assembly is arranged corresponding to the four positions. Two first tie rods 8 and two second tie rods 4 are arranged in the same vertical direction.

[0032] Of course, refer to Figure 3 As shown, the stepped retaining wall in this embodiment also includes a second-level step and steps of level two or higher. After the first-level step 11 is poured, the completed first-level step 11 is used as a carrier to anchor the template 5 of the second-level step. Multiple anchor bars 2 are inserted into the first-level step 11 at 30-minute intervals. The insertion depth of the anchor bars 2 is 1 / 2 of its length, and the insertion position of the anchor bars 2 is located at 3 / 4 of the slope from the template 5. The multiple anchor bars 2 are evenly arranged along the length of the retaining wall.

[0033] Furthermore, the template 5 is moved upward from the first step 11, and positions one and two of the template 5 are moved upward to positions three and four respectively. That is to say, the height of the second step and above is less than the height of the first step 11. Therefore, there is no need to set external supports on the outside of the template of the second step and above. Two second tie bars 4 are welded on the anchor bar 2 to pull the template 5. To prevent the anchor bar 2 from deforming during the pulling process, a third support 13 is inclined between the anchor bar 2 and the ground. The third support 13, the anchor bar 2 and the ground form a triangle, thereby improving the overall stability of the single-sided formwork device.

[0034] Of course, to further improve the overall stability of the single-sided formwork device, multiple back ribs 10 are evenly arranged on the outside of the formwork 5 required for all steps. The multiple back ribs 10 are arranged along the horizontal extension direction of the tie rod assembly on the formwork 5. Specifically, the back ribs 10 are arranged on the outside of the formwork 5, and the ends of the first tie rod 8 and the second tie rod 4 both pass through the back ribs 10. One end of the second support member 9, which is set when the formwork of the first step 11 is erected, abuts against the back ribs 10. The back ribs 10 can enclose the formwork 5 and are used to bear the lateral pressure during concrete pouring, effectively reducing the occurrence of formwork running and bulging, and ensuring the overall stability and deformation resistance of the formwork 5.

[0035] Furthermore, a fastener 7 is provided on the anchoring end 6 of the back rib 10 extending from the tie rod assembly. The fastener 7 has threads on its outer side. Specifically, the fastener 7 is used to fix the back rib 10 and the formwork 5. The fastener 7 and the back rib 10 together form a reinforcement system for the formwork 5 to ensure construction quality. At the same time, the fastener 7 has threads on its outer side, which are set at the anchoring end 6 of the tie rod assembly to fasten the tie rod assembly.

[0036] When setting up formwork at the ear wall of the facing wall, the density of the formwork 5 can be appropriately increased according to the thickness of the wall.

[0037] To prevent grout leakage when pouring concrete into the inside of formwork 5, sealant and buffer components are filled at the junction of formwork 5 and the next step in the second-level and above steps. The buffer components can be rubber pads. The elasticity of the rubber pads can buffer the shrinkage and expansion of the concrete, reduce the contact area between the concrete and formwork 5, thereby preventing grout leakage during concrete vibration. At the same time, the elasticity of the rubber pads can also play a shock-absorbing role, ensuring tight filling and making the cast-in-place retaining wall safe and stable.

[0038] When pouring the wall in sections, the pouring opening on the formwork 5 becomes narrow, making it difficult for air to escape. Therefore, venting holes are opened on the formwork 5 to ensure that the concrete can be fully vibrated during the pouring process, thus ensuring the safety and reliability of the steps.

[0039] Reference Figure 4As shown, after the construction of the facing wall is completed, after removing the threaded fasteners 7, the back ribs 10 and the template 5, the anchoring end 6 of the tie rod assembly can be connected to the hook 12. The end of the hook 12 has a sleeve with threads inside, so that the hook 12 can be threadedly connected to the anchoring end 6 of the tie rod assembly. This allows the hook 12 to hang green plants, billboards and other decorations without the need to drill holes or cut grooves separately after the construction of the facing wall is completed, thus improving construction efficiency.

[0040] In this embodiment, both the tie structure and the support structure can be made from scrap steel bars. By adding steel bars to the plain concrete, the rigidity of the wall is improved. In this embodiment, single-sided formwork is carried out by layered formwork and layered pouring, which replaces the traditional double-sided formwork. The construction is simple, safe and efficient, shortens the construction period and reduces costs.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model. Therefore, this utility model is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features of the utility model herein.

Claims

1. A single-sided formwork support device for a stepped facing wall, comprising a template (5), a tie structure, and a support structure, wherein the single-sided formwork support device is applied to multi-level steps, characterized in that: The template (5) forms a space for pouring concrete between itself and the slope. The tie structure includes a tie assembly and multiple anchor bars (2). The multiple anchor bars (2) are evenly arranged along the extension direction of the slope toe. The tie assembly includes multiple first tie bars (8) and multiple second tie bars (4). The multiple first tie bars (8) are evenly arranged between the anchor bars (2) and the template (5), and the multiple second tie bars (4) are evenly arranged between the template (5) and the slope surface. The support structure is inclinedly arranged on the inner and outer sides of the template (5).

2. The single-sided formwork support device for a stepped facing wall according to claim 1, characterized in that, The support structure of the first step (11) includes a plurality of first support members (3) and a plurality of second support members (9). The plurality of first support members (3) are respectively inclinedly arranged between the plurality of anchor bars (2) and the ground, and the plurality of second support members (9) are respectively inclinedly arranged between the outer side of the template (5) and the ground.

3. A single-sided formwork support device for a stepped facing wall according to claim 2, characterized in that, It also includes multiple positioning ribs (1), which are evenly arranged on the ground along the extension direction of the wall base, and the template (5) is set to fit the outer side of the multiple positioning ribs (1).

4. A single-sided formwork support device for a stepped facing wall according to claim 1, characterized in that, The support structure of the second-level and above steps includes a plurality of third support members (13), which are respectively inclinedly arranged between the plurality of anchor bars (2) and the ground.

5. A single-sided formwork support device for a stepped facing wall according to claim 4, characterized in that, The anchor bars (2) of the second-level and above steps are vertically inserted into the next level step. The insertion depth of the anchor bars (2) is 1 / 2 of its length, and the insertion position of the anchor bars (2) is located at 3 / 4 of the distance from the template (5) to the slope.

6. A single-sided formwork support device for a stepped facing wall according to claim 4, characterized in that, The template (5) of the second-level and higher-level steps is filled with sealing and buffer components at the junction with the next higher level step.

7. A single-sided formwork support device for a stepped facing wall according to any one of claims 2 to 6, characterized in that, The template (5) has an exhaust hole.

8. A single-sided formwork support device for a stepped facing wall according to any one of claims 2 to 6, characterized in that, Multiple back ribs (10) are evenly arranged on the outer side of the template (5), and the multiple back ribs (10) are arranged along the horizontal extension direction of the tie rod assembly on the template (5).

9. A single-sided formwork support device for a stepped facing wall according to claim 8, characterized in that, The tie rod assembly extends from the anchoring end (6) of the back rib (10) and is provided with a fastener (7), and the fastener (7) is provided with a thread on its outer side.

10. A single-sided formwork support device for a stepped facing wall according to claim 9, characterized in that, After removing the threaded fastener, the fastener (7), the back rib (10) and the template (5), the anchoring end (6) of the tie rod assembly is connected to a hook (12).

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