Unilateral integral formwork for construction of cutting retaining wall

Abstract

The utility model discloses a unilateral integral formwork for construction of a cutting retaining wall, which comprises a steel formwork, a vertical truss and a transverse back ridge, and the steel formwork is formed by splicing a plurality of standard formworks; the vertical truss comprises first vertical rods, second vertical rods and supporting rods, one side walls of the multiple first vertical rods are fixed to a side panel of the steel formwork at intervals, the multiple second vertical rods correspond to the other side walls of the multiple first vertical rods one to one, and the two ends of the multiple supporting rods are correspondingly fixed to the opposite side walls of the first vertical rods and the second vertical rods respectively; the transverse back edges are perpendicular to the first vertical rods and fixed to the side walls, opposite to the steel formworks, of the first vertical rods. The assembled steel formworks are reinforced through the vertical trusses and the transverse back ridges to form an integrated and shaped formwork, deformation cannot occur in the hoisting process, dismantling is not needed after concrete is poured, turnover is convenient, and construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of highway engineering road cutting retaining wall construction, and more specifically to a single-side integral template for road cutting retaining wall construction. Background Art

[0002] The structure set up on the side slope of the road cutting to prevent soil deformation is called a road cutting retaining wall. The retaining wall uses its own gravity to maintain the stability of the retaining wall under the action of soil pressure. It is generally made into a simple trapezoid and often adopts stone or concrete structure.

[0003] In the past, when constructing road cutting retaining walls, double-sided retaining wall formwork was used. After the back of the wall was excavated, the outer and inner sides of the retaining wall (at the back of the wall) were assembled piece by piece using flat formwork. The inner and outer sides were tied with tension screws to prevent the deformation of the concrete pouring formwork. After the concrete was poured, the formwork was removed and the back of the retaining wall was backfilled. When pouring the retaining wall in the next stage, the formwork needed to be re-polished and assembled. After pouring the concrete, the assembled formwork was removed again. With this construction method, the inclination of the formwork is difficult to adjust. When pouring concrete, especially when vibrating, when the formwork is subjected to force, it is very easy to deform and float, and the finished product line shape is very poor. The formwork is prone to bending and deformation, and the surface is not on the same plane, resulting in bulging and other serious quality problems. At the same time, the formwork needs to be assembled and dismantled once for each concrete pouring, which is inefficient. If the formwork is directly hoisted without being removed after the concrete pouring, the formwork is prone to bending and deformation, and the connecting bolts between multiple formworks are prone to breakage, causing safety accidents.

[0004] Therefore, how to provide a single-sided integral formwork for the construction of a road cutting retaining wall, in which the formwork will not bend or deform due to force, the cast road cutting retaining wall has a straight line, a smooth and dense surface, and the construction quality is improved, and the formwork can be hoisted as a whole after each casting is completed, is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] In view of this, the utility model provides a single-sided integral formwork for the construction of a road cutting retaining wall, aiming to solve the above-mentioned technical problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A single-side integral formwork for construction of a road cutting retaining wall, comprising:

[0008] Steel formwork, which is made of multiple standard formworks;

[0009] A vertical truss, wherein the number of the vertical trusses is multiple, and the vertical truss comprises a first vertical rod, a second vertical rod and a support rod, one side wall of the multiple first vertical rods is fixed on a side panel of the steel formwork at intervals along the vertical direction, the multiple second vertical rods correspond to the other side walls of the multiple first vertical rods one by one, and the two ends of the multiple support rods are respectively fixed to the side walls opposite to the first vertical rod and the second vertical rod;

[0010] A transverse back rib is arranged perpendicular to the first vertical rod and fixed on a side wall of the first vertical rod opposite to the steel formwork.

[0011] The beneficial effect of the above technical solution is that a plurality of standard plates are spliced ​​into an integral steel formwork, and the spliced ​​formwork is reinforced by vertical trusses. At the same time, back ribs are inserted into the gaps in the steel sections and fixed to the first vertical rods. On the one hand, the back ribs connect a plurality of vertical trusses into a whole, and on the other hand, the back ribs are used to reinforce the spliced ​​steel formwork, thereby improving the rigidity of the spliced ​​steel formwork. The steel formwork will not be deformed during hoisting, and the spliced ​​integral steel formwork is reinforced into one. The formwork will not be deformed due to stress during use, and can be directly hoisted and used after being spliced ​​once.

[0012] Preferably, the first vertical rod and the second vertical rod are both made of double-joined I-beams or double-joined channel steels; a plurality of the support rods are clamped and fixed between the opposite side walls of the two I-beams or channel steels of the first vertical rod and the second vertical rod, and a gap is provided between the opposite side walls of the two I-beams or channel steels. The first vertical rod and the second vertical rod are made of double-joined section steels, and the support rods are clamped between the opposite side walls of the two section steels in the first vertical rod and the second vertical rod, which can fix the two section steels on one hand and improve the rigidity of the vertical truss on the other hand.

[0013] Preferably, it further comprises a cross-link and a tie rod, wherein the cross-link is arranged perpendicular to the plurality of second vertical rods and one side wall thereof abuts against the side wall of the second vertical rod away from the first vertical rod, and the tie rod penetrates the gap between the first vertical rod and the second vertical rod and fastens the cross-link to the vertical truss through a nut. The cross-link can improve the stability of the connection of multiple groups of vertical trusses and ensure the integrity of the initial connection between the vertical trusses, the steel formwork and the transverse back ribs.

[0014] Preferably, the cross-link is made of double-jointed I-beams or double-jointed channel steels.

[0015] Preferably, the cross-connection is provided with at least two paths.

[0016] Preferably, a step surface is formed on the top end of the second vertical rod.

[0017] Preferably, the number of the transverse back ribs is 3, which are arranged at the upper part, the middle part and the lower part of the first vertical rod respectively. The three transverse back ribs are arranged along the upper part, the middle part and the lower part of the first vertical rod, and multiple groups of vertical trusses are connected by the three transverse back ribs. At the same time, the three transverse back ribs improve the rigidity of the steel formwork after splicing.

[0018] Preferably, the transverse back ribs are fixed to the first vertical rods by welding or connected by bolts.

[0019] Preferably, the support rods are arranged horizontally or inclined.

[0020] Preferably, two adjacent standard plates are fastened by a plurality of bolts, and the directions of two adjacent vertically arranged bolts are opposite.

[0021] It can be seen from the above technical scheme that compared with the prior art, the utility model discloses a single-sided integral formwork for the construction of a road cutting retaining wall. After the steel formwork is spliced ​​together through multiple standard plates, the assembled steel formwork is reinforced by vertical trusses and horizontal back ribs to form an integrated and standardized formwork. No deformation will occur during the lifting process, and there is no need to dismantle it after pouring the concrete, which facilitates turnover and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A front view of the integral template provided by the utility model;

[0024] Figure 2 A schematic diagram of a vertical truss structure provided by the utility model;

[0025] Figure 3 A schematic diagram of the connection of multiple vertical trusses provided by the utility model;

[0026] Figure 4 for Figure 3 A magnified schematic diagram of part A in FIG.

[0027] Figure 5 A side cross-sectional schematic diagram of the retaining wall casting provided by the utility model;

[0028] Figure 6 for Figure 5 Enlarged schematic diagram of part B in the middle.

[0029] in,

[0030] 1-steel formwork; 2-vertical truss; 21-first vertical rod; 22-second vertical rod; 23-support rod; 3-transverse back rib; 4-cross connection; 5-pull rod; 6-steel pipe; 7-slope; 8-bolt. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0032] See attached Figures 1 to 4 The utility model discloses a single-sided integral formwork for the construction of a road cutting retaining wall, which is reinforced by vertical trusses and horizontal back ribs. After the formwork is assembled, it can be used in a turnover manner without being dismantled, thereby improving the construction efficiency, including:

[0033] Steel formwork 1, steel formwork 1 is formed by splicing a plurality of standard formworks;

[0034] A vertical truss 2, wherein the number of the vertical trusses 2 is multiple, and the vertical truss 2 comprises a first vertical rod 21, a second vertical rod 22 and a support rod 23, one side wall of the multiple first vertical rods 21 is fixed on a side panel of the steel formwork 1 at intervals along the vertical direction, the multiple second vertical rods 22 correspond to the other side walls of the multiple first vertical rods 21 one by one, and the two ends of the multiple support rods 23 are respectively fixed to the side walls opposite to the first vertical rod 21 and the second vertical rod 22;

[0035] The transverse back ribs 3 are arranged perpendicular to the first vertical rods 21 and fixed on the side wall of the first vertical rods 21 opposite to the steel formwork 1 .

[0036] In order to further optimize the above technical solution and ensure sufficient rigidity of the vertical truss, the first vertical rod 21 and the second vertical rod 22 are both made of double I-beams or double channel steels; a plurality of support rods 23 are clamped and fixed between the opposite side walls of the two I-beams or channel steels of the first vertical rod 21 and the second vertical rod 22, and there is a gap between the opposite side walls of the two I-beams or channel steels.

[0037] When making the vertical truss, ensure that the ground is level, place the steel sections on the bottom surface, weld one side wall at both ends of the support rod to the upper surface of the two steel sections, connect the steel sections with the support rod, and then weld another layer of steel sections to the other side wall of the support rod. The first vertical rod and the second vertical rod are both two layers of steel sections, and the support rod is sandwiched between the two layers of steel sections. The support rod can not only connect the first vertical rod and the second vertical rod, but also improve the rigidity of the vertical truss.

[0038] In this embodiment, a transverse link 4 and a tension rod 5 are also included. The transverse link 4 is arranged perpendicular to the plurality of second vertical rods 22 and one side wall thereof abuts against the side wall of the second vertical rod 22 away from the first vertical rod 21. The tension rod 5 passes through the gap between the first vertical rod 21 and the second vertical rod 22 and fastens the transverse link 4 to the vertical truss 2 through a nut.

[0039] The transverse back ribs connect multiple groups of vertical trusses into a whole on the side of the vertical truss close to the formwork. At the same time, the transverse back ribs can also horizontally reinforce the spliced ​​steel formwork, so that the steel formwork will not be deformed during the lifting process. The cross-links connect multiple vertical trusses into a whole on the other side of the vertical truss, thereby improving the rigidity of multiple groups of vertical trusses and preventing deformation during the lifting process.

[0040] In order to further optimize the above technical solution and facilitate the fastening of the horizontal connection and the vertical truss through the tension rod, the horizontal connection 4 is made of double-jointed I-beams or double-jointed channel steels.

[0041] In order to further optimize the above technical solution and ensure the overall stability of the connection of multiple vertical trusses, at least two cross links 4 are provided.

[0042] In order to further optimize the above technical solution, a step surface is formed on the top end of the second vertical rod 22 .

[0043] In some other specific embodiments, the number of the transverse back ribs 3 is three, which are arranged at the upper part, the middle part and the lower part of the first vertical rod 21 respectively.

[0044] In order to further optimize the above technical solution, the transverse back ribs 3 are welded or bolted to the first vertical rod 21. In this embodiment, the transverse back ribs are bolted to the first vertical rod for easy disassembly.

[0045] In order to further optimize the above technical solution, the support rod 23 is arranged horizontally or inclined.

[0046] In order to further optimize the above technical solution, two adjacent standard plates are fastened by a plurality of bolts 8, and the directions of two adjacent vertically arranged bolts 8 are opposite.

[0047] See attached Figure 5 and 6When the retaining wall is constructed, a trench is excavated on the side close to the slope 7, and a traditional construction template is installed near the slope as the inner template of the retaining wall. The integral template provided in this embodiment is used as the outer template of the retaining wall. The inner and outer templates are pulled closer by a tie rod, and the bottom is tied by the fixed steel bars reserved in the foundation to prevent the steel template from floating up. The side of the integral template is supported by a steel pipe 6 to prevent the template from shifting. In this way, the template will not bend and deform due to force. The cast road cutting retaining wall has a straight line shape and a flat and dense surface, which improves the construction quality. And there is no need to assemble the template again. After the template is assembled once, it can be directly hoisted and used, which improves the construction efficiency.

[0048] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0049] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be 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 the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A single-sided integral formwork for construction of a road cutting retaining wall, characterized in that: include: A steel template (1), wherein the steel template (1) is formed by splicing a plurality of standard templates; A vertical truss (2), wherein the number of the vertical trusses (2) is multiple, and the vertical truss (2) comprises a first vertical rod (21), a second vertical rod (22) and a support rod (23), one side wall of the multiple first vertical rods (21) is fixed on a side panel of the steel formwork (1) at intervals along the vertical direction, the multiple second vertical rods (22) correspond one to one with the other side wall of the multiple first vertical rods (21), and the two ends of the multiple support rods (23) are respectively fixed to the side walls of the first vertical rod (21) and the second vertical rod (22) opposite to each other; A transverse back rib (3), wherein the transverse back rib (3) is arranged perpendicular to the first vertical rod (21) and is fixed on the side wall of the first vertical rod (21) opposite to the steel formwork (1).

2. A single-sided integral formwork for construction of a road cutting retaining wall according to claim 1, characterized in that: The first vertical rod (21) and the second vertical rod (22) are both made of double-jointed I-beams or double-jointed channel steels; a plurality of support rods (23) are clamped and fixed between the opposite side walls of the two I-beams or channel steels of the first vertical rod (21) and the second vertical rod (22), and a gap is provided between the opposite side walls of the two I-beams or channel steels.

3. A single-sided integral formwork for construction of a road cutting retaining wall according to claim 2, characterized in that: It also includes a cross link (4) and a tension rod (5), wherein the cross link (4) is arranged perpendicular to the plurality of second vertical rods (22) and one side wall thereof abuts against a side wall of the second vertical rod (22) away from the first vertical rod (21), and the tension rod (5) passes through the gap between the first vertical rod (21) and the second vertical rod (22) and fastens the cross link (4) to the vertical truss (2) via a nut.

4. A single-sided integral formwork for construction of a road cutting retaining wall according to claim 3, characterized in that: The cross link (4) is made of double-jointed I-beams or double-jointed channel steels.

5. The one-side integral formwork for construction of a road cutting retaining wall according to claim 3, characterized in that: The cross-connection (4) is provided with at least two paths.

6. The one-side integral formwork for construction of a road cutting retaining wall according to claim 1, characterized in that: A step surface is formed at the top end of the second vertical rod (22).

7. The one-side integral formwork for construction of a road cutting retaining wall according to claim 1, characterized in that: The number of the transverse back ribs (3) is three, which are arranged respectively at the upper part, the middle part and the lower part of the first vertical rod (21).

8. The one-side integral formwork for construction of a road cutting retaining wall according to claim 1, characterized in that: The transverse back ribs (3) are fixed to the first vertical rods (21) by welding or connected by bolts.

9. The one-side integral formwork for construction of a road cutting retaining wall according to claim 1, characterized in that: The support rod (23) is arranged horizontally or inclined.

10. The one-side integral formwork for construction of a road cutting retaining wall according to claim 1, characterized in that: Two adjacent standard templates are fastened by a plurality of bolts (8), and the directions of two adjacent vertically arranged bolts (8) are opposite.

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