Layered construction formwork of balance weight type retaining wall

Abstract

The utility model relates to a layered construction formwork of a balance weight type retaining wall. The layered construction formwork comprises a steel plate, a plurality of first bolt rods, a plurality of second bolt rods, a first formwork, a second formwork, a plurality of first pull rods, a plurality of second pull rods and a plurality of third pull rods. The first bolt rods and the second bolt rods are fixed to the two sides of the top face of the lower-layer concrete structure respectively, the first formwork and the second formwork can be rapidly placed and positioned, the bottom of the first formwork and the bottom of the second formwork are fixed, and the steel plate is embedded in the middle of the top face of the lower-layer concrete structure, so that the steel plate is fixed to the bottom of the lower-layer concrete structure. The middle of the first formwork and the middle of the second formwork are fixed through the first pull rod and the second pull rod, the top of the first formwork and the top of the second formwork are fixed through the third pull rod, and therefore the first formwork and the second formwork are stable in structure. Scaffolds are not required to be erected, so that the construction cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of retaining walls, in particular to a layered construction template for a counterweight type retaining wall. Background Art

[0002] A counterweight retaining wall is a type of gravity retaining wall that uses the gravity of the backfill on the counterweight platform to shift the center of gravity of the wall backward to resist the lateral pressure of the soil.

[0003] The counterweight retaining wall includes a lower wall and an upper wall (bounded by a counterweight platform). Currently, the lower wall and the upper wall are constructed in layers. For example, Patent No. CN114657940B discloses a method for constructing a cast-in-place gravity-type embankment retaining wall concrete with a plywood formwork. During the construction of each layer, a formwork system needs to be installed: the surface formwork 1, secondary ribs 2, main ribs 3, inner pull rods 6 and butterfly buckles 7 are installed. The steel pipe secondary ribs 201 exposed at the top of the surface formwork 1 are connected to the upper longitudinal beams 4 with a rotating fastener, and the upper longitudinal beams 4 on both sides of the wall are connected to the upper cross beams 5 with a rotating fastener. The installation of this formwork system requires the setting up of scaffolding, which has high construction costs, and the formwork installation and disassembly process is relatively cumbersome, and the construction efficiency is low, especially when used for large counterweight retaining walls, such as counterweight retaining walls in deep foundation pits, which have an air-facing surface and a slope on the other side, and the overall height exceeds 2 meters. This large counterweight retaining wall is high, has an air-facing surface, and requires high-altitude operations, making construction more difficult using the current formwork system. Utility Model Content

[0004] The main purpose of the utility model is to propose a layered construction template for a counterweight type retaining wall, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A layered construction template for a counterweight retaining wall, comprising:

[0007] The steel plate is embedded in the middle of the top surface of the lower concrete structure and has a number of central connection holes;

[0008] A plurality of first bolt rods are fixed to one side of the top surface of the lower concrete structure and extend outward;

[0009] A plurality of second bolt rods are fixed to the other side of the top surface of the lower concrete structure and extend outward;

[0010] The first template is arranged obliquely, has a plurality of first connection holes at the lower part, a plurality of second connection holes at the middle part, and a plurality of third connection holes at the upper part, and a plurality of first bolt rods pass through the first connection holes respectively and are connected to the first template through nuts;

[0011] The second template has a plurality of fourth connection holes at the lower part, a plurality of fifth connection holes at the middle part, and a plurality of sixth connection holes at the upper part, and a plurality of second bolt rods respectively pass through the fourth connection holes and are connected to the second template via nuts;

[0012] A plurality of first tie rods, one end of which passes through the central connection hole and is connected to the steel plate via a nut, and the other end of which passes through the second connection hole and is connected to the first template via a nut;

[0013] A plurality of second tie rods, one end of which passes through the central connection hole and is connected to the steel plate via a nut, and the other end of which passes through the fifth connection hole and is connected to the second template via a nut;

[0014] A plurality of third pull rods have one end passing through the third connection hole and connected to the first template via a nut, and the other end passing through the sixth connection hole and connected to the second template via a nut.

[0015] Preferably, the first connecting hole, the second connecting hole and the third connecting hole are oblong holes.

[0016] Preferably, a plurality of horizontal support rods are fixed to the outer side of the second template, wooden boards are laid on the horizontal support rods, and vertical support rods are fixed to the ends of the horizontal support rods away from the second template.

[0017] Preferably, the vertical support rod has a wire rope hole.

[0018] Preferably, the horizontal support rod includes a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are connected by threads.

[0019] The utility model provides a layered construction template for a counterweight retaining wall, which has the following beneficial effects:

[0020] The utility model can quickly place and position the first formwork and the second formwork by respectively fixing a plurality of first bolt rods and a plurality of second bolt rods on both sides of the top surface of the lower concrete structure, and fix the bottoms of the first formwork and the second formwork, and embed a steel plate in the middle of the top surface of the lower concrete structure, and then fix the middle of the first formwork and the second formwork by the first pull rod and the second pull rod, and fix the top of the first formwork and the second formwork by the third pull rod, so that the first formwork and the second formwork structure are stable. The utility model has a simple structure, and each connection node is connected by bolts and nuts, which is convenient to install and disassemble, has high construction efficiency, does not require the construction of scaffolding, and saves construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a layered construction template when constructing the lower wall of the utility model;

[0022] Figure 2This is a schematic diagram of the structure of the layered construction template when constructing the upper wall of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the steel plate of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the first template of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the second template of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the horizontal support rod of the utility model.

[0027] In the figure: 1. steel plate; 11. center connecting hole; 2. first bolt rod; 3. second bolt rod; 4. first template; 41. first connecting hole; 42. second connecting hole; 43. third connecting hole; 5. second template; 51. fourth connecting hole; 52. fifth connecting hole; 53. sixth connecting hole; 6. first pull rod; 7. second pull rod; 8. third pull rod; 9. horizontal support rod; 91. first connecting rod; 92. second connecting rod; 10. vertical support rod; 101. wire rope hole. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of the utility model.

[0029] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] Example

[0033] Reference Figure 1-5 As shown, a layered construction formwork for a counterweight retaining wall includes a steel plate 1, a plurality of first bolt rods 2, a plurality of second bolt rods 3, a first formwork 4, a second formwork 5, a plurality of first tie rods 6, a plurality of second tie rods 7, and a plurality of third tie rods 8;

[0034] The steel plate 1 is embedded in the middle of the top surface of the lower concrete structure and has a plurality of central connection holes 11; a plurality of first bolt rods 2 are fixed to one side of the top surface of the lower concrete structure and extend outward; a plurality of second bolt rods 3 are fixed to the other side of the top surface of the lower concrete structure and extend outward;

[0035] The first template 4 is tilted, with a plurality of first connection holes 41 at the bottom, a plurality of second connection holes 42 at the middle, and a plurality of third connection holes 43 at the top. A plurality of first bolt rods 2 pass through the first connection holes 41 and are connected to the first template 4 via nuts.

[0036] The second template 5 has a plurality of fourth connection holes 51 at the bottom, a plurality of fifth connection holes 52 in the middle, and a plurality of sixth connection holes 53 at the top. A plurality of second bolt rods 3 pass through the fourth connection holes 51 and are connected to the second template 5 via nuts.

[0037] One end of a number of first tie rods 6 passes through the central connecting hole 11 and is connected to the steel plate 1 through a nut, and the other end passes through the second connecting hole 42 and is connected to the first template 4 through a nut; one end of a number of second tie rods 7 passes through the central connecting hole 11 and is connected to the steel plate 1 through a nut, and the other end passes through the fifth connecting hole 52 and is connected to the second template 5 through a nut; one end of a number of third tie rods 8 passes through the third connecting hole 43 and is connected to the first template 4 through a nut, and the other end passes through the sixth connecting hole 53 and is connected to the second template 5 through a nut.

[0038] The working principle of the utility model is:

[0039] When pouring the lower concrete structure, a steel plate 1 is embedded in the middle of its top surface, and a plurality of first bolt rods 2 and a plurality of second bolt rods 3 are fixed on both sides of the top surface. The first bolt rods 2 and the second bolt rods 3 can be fixed by embedding or anchoring, with one end extending outward, and then the first template 4 is hoisted so that the first connecting holes 41 are respectively sleeved on the first threaded rods, and the first connecting rods 91 are fixedly connected to the bottom of the first template 4 by nuts, and then the steel plate 1 is fixedly connected to the middle of the first template 4 by the first tie rod 6, and then the second template 5 is hoisted so that the fourth connecting holes 51 are sleeved on the second bolt rods 3, and the nuts are screwed in place. The second connecting rod 92 is fixedly connected to the bottom of the second formwork 5, and the steel plate 1 is fixedly connected to the middle part of the second formwork 5 by the second tie rod 7. Finally, the upper part of the first formwork 4 and the upper part of the second formwork 5 are fixedly connected by the third tie rod 8. The installation of the first tie rod 6, the second tie rod 7 and the third tie rod 8 can be completed on the poured lower concrete structure. After the first formwork 4 and the second formwork 5 are fixed, concrete can be poured. During pouring, the steel plate 1 continues to be embedded, and the first bolt rod 2 and the second bolt rod 3 are set to facilitate the construction of the next layer. This cycle is repeated, and the lower wall and the upper wall of the counterweight retaining wall can be completed in layers.

[0040] Among them, due to the difference in the structure of the lower wall and the upper wall, the inclination direction of the first template 4 is also different during construction. Figure 1 When constructing the lower wall, the first template 4 is tilted inward, and the angle between the first template 4 and the lower concrete structure is an obtuse angle. Figure 2 When constructing the upper wall, the first template 4 is tilted outward, and the angle between the first template 4 and the lower concrete structure is an acute angle. The second template 5 is set at an angle or vertically according to the structural form of the counterweight retaining wall.

[0041] The utility model can quickly place and position the first formwork 4 and the second formwork 5 by respectively fixing a plurality of first bolt rods 2 and a plurality of second bolt rods 3 on both sides of the top surface of the lower concrete structure, and fix the bottoms of the first formwork 4 and the second formwork 5. The steel plate 1 is embedded in the middle of the top surface of the lower concrete structure, and the middle of the first formwork 4 and the second formwork 5 is fixed by the first tie rod 6 and the second tie rod 7, and the top of the first formwork 4 and the second formwork 5 is fixed by the third tie rod 8, so that the structure of the first formwork 4 and the second formwork 5 is stable. The utility model has a simple structure, and each connection node is connected by bolts and nuts, which is convenient for installation and disassembly, has high construction efficiency, does not require the construction of scaffolding, and saves construction costs.

[0042] In a specific embodiment, the first connecting hole 41, the second connecting hole 42, and the third connecting hole 43 are oblong holes, and the inclination angle of the first template 4 can be adjusted. A triangular block is arranged between the nut and the first template 4. The triangular block is tightly attached to the nut and the first template 4, and can effectively fix the first template 4.

[0043] In a specific implementation scheme, in view of construction conditions without supporting surfaces such as deep foundation pits, a number of horizontal support rods 9 are fixed to the outer side of the second formwork 5, and wooden boards are laid on the horizontal support rods 9 to form a simple operating platform to meet the normal standing and walking needs of construction workers. A vertical support rod 10 is fixed to the end of the horizontal support rod 9 away from the second formwork 5 as a guardrail to improve the safety of construction.

[0044] In a specific embodiment, the vertical support rod 10 has a wire rope hole 101, one end of the wire rope is tied to the second template 5, and the other end passes through the wire rope hole 101, is tightened and fixed, forming a horizontal lifeline, further improving the safety of construction.

[0045] In a specific embodiment, the horizontal support rod 9 includes a first connecting rod 91 and a second connecting rod 92. The first connecting rod 91 and the second connecting rod 92 are connected by threads, so that the length of the simple operation platform can be changed.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A layered construction formwork for a counterweight retaining wall, characterized in that: include The steel plate is embedded in the middle of the top surface of the lower concrete structure and has a number of central connection holes; A plurality of first bolt rods are fixed to one side of the top surface of the lower concrete structure and extend outward; A plurality of second bolt rods are fixed to the other side of the top surface of the lower concrete structure and extend outward; The first template is arranged obliquely, has a plurality of first connection holes at the lower part, a plurality of second connection holes at the middle part, and a plurality of third connection holes at the upper part, and a plurality of first bolt rods respectively pass through the first connection holes and are connected to the first template through nuts; The second template has a plurality of fourth connection holes at the lower part, a plurality of fifth connection holes at the middle part, and a plurality of sixth connection holes at the upper part, and a plurality of second bolt rods respectively pass through the fourth connection holes and are connected to the second template via nuts; A plurality of first tie rods, one end of which passes through the central connection hole and is connected to the steel plate via a nut, and the other end of which passes through the second connection hole and is connected to the first template via a nut; A plurality of second tie rods, one end of which passes through the central connection hole and is connected to the steel plate via a nut, and the other end of which passes through the fifth connection hole and is connected to the second template via a nut; A plurality of third pull rods have one end passing through the third connection hole and connected to the first template via a nut, and the other end passing through the sixth connection hole and connected to the second template via a nut.

2. The layered construction formwork for a counterweight retaining wall according to claim 1, characterized in that: The first connection hole, the second connection hole and the third connection hole are oblong holes.

3. The layered construction formwork for a counterweight retaining wall according to claim 1, characterized in that: A plurality of horizontal support rods are fixed to the outer side of the second template, wooden boards are laid on the horizontal support rods, and vertical support rods are fixed to one end of the horizontal support rods away from the second template.

4. The layered construction formwork for a counterweight retaining wall according to claim 3 is characterized in that: The vertical support rod is provided with a wire rope hole.

5. The layered construction formwork for a counterweight retaining wall according to claim 3 is characterized in that: The horizontal support rod includes a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are connected by threads.

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