Formwork construction structure for the side wall of biological retention ditch

Abstract

The utility model belongs to the field of urban road construction, and discloses a biological retention ditch side wall formwork construction structure, including a retention ditch excavated along the edge of a roadway; the bottom of the retention ditch is excavated with an inverted right-angle trapezoidal groove according to the thickness of the side wall casting, and the side wall formwork is arranged on the right-angle waist of the right-angle trapezoidal groove; the bottom of the side wall formwork is provided with an angle iron, and rib plates are welded on the angle iron at equal intervals along its length direction, and support rods are hinged on the rib plates; a plurality of fixing nuts are pre-embedded at equal intervals on the side of the roadway, and a support sleeve is arranged between the top of the side wall formwork and the roadway relative to each fixing nut, one end of a plurality of screws penetrates the side wall formwork, the support sleeve is screwed to the fixing nut, and the other end is fixed by a locking nut. Compared with the existing biological retention ditch side wall formwork structure, the utility model can reduce the subsequent processing cost and improve the construction efficiency.

Description

Technical Field

[0001] The utility model belongs to the field of urban road construction, in particular to a biological retention ditch side wall formwork construction structure. Background Art

[0002] With the proposal and application of the concept of sponge city construction, urban road bioretention ditches have gradually been used. During the construction of the bioretention ditch, after the trench is excavated and formed, the cross-section is roughly U-shaped, with the carriageway and the sidewalk on both sides. The next process requires casting the side wall of the bioretention ditch on the side of the carriageway to form a vertical partition, which is also the basis for placing the curbstone and the attachment basis for the anti-seepage membrane paving in the subsequent process.

[0003] At present, the side walls of the biological retention ditch need to be cast by formwork. The usual practice is to build a side wall formwork vertically on the bottom of the ditch, and fix the back of the side wall formwork by a number of wooden supports. This formwork method is cumbersome to operate and difficult to construct. The Chinese patent application with application number CN202122953433.7, filed on November 29, 2021, discloses a formwork structure for the side walls of the biological retention ditch. By taking advantage of the height difference between the bottom wall and the base layer, the side wall formwork is fixed by using steel bars, tensioning wires, and column steel bars to reduce costs and increase efficiency.

[0004] However, this formwork structure has the following problems:

[0005] 1. It is necessary to set reinforcement steel bars on the roadway, which makes the subsequent processing of the reinforcement steel bars troublesome and increases the subsequent processing costs;

[0006] 2. The column steel bars also need to be implanted in the coating at the bottom of the groove, and there are requirements for the implantation depth, which also increases the difficulty of construction.

[0007] Based on this, the present application provides a bioretention ditch side wall formwork construction structure with relatively simple construction and high formwork efficiency. Utility Model Content

[0008] The utility model aims to solve the problems of the existing bioretention ditch side wall formwork structure, such as the troublesome subsequent reinforcement treatment and the increased construction difficulty of the column reinforcement. To this end, the utility model provides a bioretention ditch side wall formwork construction structure with relatively simple construction and high formwork efficiency.

[0009] The technical solution adopted by the utility model to solve its technical problems is:

[0010] Provided is a biological retention ditch side wall formwork construction structure, comprising a retention ditch excavated along the edge of a roadway; an inverted right-angle trapezoidal groove is excavated at the bottom of the retention ditch according to the casting thickness of the side wall, and a side wall formwork is arranged on the right-angle waist of the right-angle trapezoidal groove; an angle iron is arranged at the bottom of the side wall formwork, and rib plates are welded on the angle iron at equal intervals along the length direction thereof, and a support rod is hinged on the rib plate; a plurality of fixing nuts are pre-embedded at equal intervals on the side of the roadway, a supporting sleeve is arranged between the top of the side wall formwork and the roadway relative to each fixing nut, one end of a plurality of screw rods passes through the side wall formwork, the supporting sleeves are screwed to the fixing nuts, and the other end is fixed by a locking nut.

[0011] In a preferred embodiment, the support rod is further hingedly connected to the support leg away from its hinged end.

[0012] In a preferred embodiment, the support rod is a telescopic rod.

[0013] Preferably, the support rod comprises a sleeve rod, a handle nut rotatably mounted on the end of the sleeve, and a screw rod with one end disposed in the sleeve rod and threadedly connected to the handle nut.

[0014] In a preferred embodiment, an angle iron is also provided on the top of the side wall formwork, and the screw rod passes through the angle iron and is screwed to a locking nut.

[0015] Preferably, the ends of the angle irons at the top and bottom of the side wall formwork are provided with connecting ear plates, and the adjacent side wall formworks are fixed with two connecting ear plates by bolts.

[0016] In a preferred embodiment, it further comprises a plurality of auxiliary supporting wood pieces, one end of the auxiliary supporting wood piece abuts against the middle of the side wall formwork, and the other end abuts against the groove wall of the retention groove.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model excavates an inverted right-angle trapezoidal groove at the bottom of the retention groove as the positioning reference of the side wall formwork. The bottom of the side wall formwork is supported by a support rod, and the top is supported by a support sleeve and a screw rod. The screw rod is connected to a fixing nut pre-buried in the roadway. There is no need to process multiple fixing nuts later. The screw rod and the support sleeve can be reused. Compared with the method of using steel bars to pull and fix, the subsequent processing cost can be reduced and the construction efficiency can be improved.

[0019] Second, it can also be combined with auxiliary supporting wood to increase the reliability of the formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0021] Figure 1 It is a cross-sectional view of the formwork construction structure of the side wall of the biological retention ditch provided by the utility model;

[0022] Figure 2 yes Figure 1 A partial top view of the bioretention ditch side wall formwork construction structure provided;

[0023] Figure 3 It is a partial cross-sectional view of the support rod provided by the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] Carriageway 1, retention groove 2, right-angle trapezoidal groove 2.0, side wall 3, side wall formwork 4, angle iron 4.1, rib plate 4.1.1, support rod 5, sleeve rod 5.1, handle nut 5.2, screw 5.3, support foot 6, fixing nut 7, support sleeve 8, screw 9, locking nut 10, auxiliary support wood 11. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] 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 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.

[0028] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model; the terms "install", "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 an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0030] Embodiment 1

[0031] This embodiment provides a bioretention ditch side wall formwork construction structure, as shown in the attached Figure 1 and attached Figure 2 As shown, it includes a retention groove 2 excavated along the edge of the carriageway 1, and an inverted right-angled trapezoidal groove 2.0 is excavated at the bottom of the retention groove 2 according to the casting thickness of the side wall 3. The inverted right-angled trapezoidal groove is used as a positioning reference when the side wall formwork is built. The groove can be constructed by mechanical equipment during the excavation process of the retention groove without the need for subsequent re-excavation operations; in specific implementation, the side wall formwork 4 is arranged on the right-angle waist of the right-angled trapezoidal groove 2.0.

[0032] In order to fix the side wall formwork, this embodiment sets an angle iron 4.1 at the bottom of the side wall formwork 4, and ribs 4.1.1 are welded on the angle iron 4.1 at equal intervals along its length direction, and a support rod 5 is hinged on the ribs 4.1.1. This design can use the support rod to fix the bottom of the side wall formwork, and the support rod can be folded and folded on the back of the formwork to facilitate the transportation of the formwork. Preferably, the support rod 5 is also hingedly connected to the support leg 6 away from its hinged end, and the support leg 6 can ensure horizontal contact with the side wall of the groove to increase the contact area.

[0033] In order to fix the top of the side wall formwork, in this embodiment, a number of fixing nuts 7 are pre-buried at equal intervals on the side of the roadway 1, and a support sleeve 8 is provided between the top of the side wall formwork 4 and the roadway 1 relative to each fixing nut 7, one end of a number of screws 9 passes through the side wall formwork 4, the support sleeve 8 is screwed to the fixing nut 7, and the other end is fixed by a locking nut 10. Compared with the existing method of using steel bars to pull and fix, this design can greatly reduce the subsequent processing cost, improve construction efficiency, and has the advantages of simple and convenient construction; at the same time, the screws and support sleeves can be reused.

[0034] Embodiment 2

[0035] On the basis of the first embodiment, the support rod 5 of this embodiment is configured as a telescopic rod, which can be adjusted according to the width of the groove.

[0036] Preferably, as attached Figure 3 As shown, the support rod 5 comprises a sleeve rod 5.1, a handle nut 5.2 rotatably mounted on the end of the sleeve, and a screw rod 5.3 with one end disposed in the sleeve rod 5.1 and screwed to the handle nut 5.2. With this support rod, the extension and retraction of the screw rod can be controlled by twisting the handle nut, which has the advantages of stable and reliable adjustment, and will not easily retract, thereby increasing the reliability of the support.

[0037] Embodiment 3

[0038] Based on the first or second embodiment, as shown in the attached Figure 1 As shown, in this embodiment, an angle iron 4.1 is also provided at the top of the side wall formwork 4, and the screw rod 9 passes through the angle iron 4.1 and is screwed to the locking nut 10. Preferably, the ends of the angle iron 4.1 at the top and bottom of the side wall formwork 4 are provided with connecting ear plates, and the adjacent side wall formworks 4 are fixed with two connecting ear plates by bolts. This design can connect the adjacent side wall formworks into one.

[0039] Embodiment 4

[0040] On the basis of any of the above-mentioned embodiments, this embodiment is further provided with a plurality of auxiliary supporting wood pieces 11, one end of which abuts against the middle of the side wall formwork 4, and the other end abuts against the groove wall of the retention groove 2. This embodiment can also cooperate with the auxiliary supporting wood pieces to increase the reliability of the formwork.

[0041] It is worth noting that: Figure 1 As shown, the height of the side wall is lower than the roadway, and the curb is constructed above it.

[0042] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A bioretention ditch sidewall formwork construction structure, comprising a retention ditch excavated along the edge of a roadway; characterized in that: The bottom of the retention groove is excavated with an inverted right-angle trapezoidal groove according to the casting thickness of the side wall, and the side wall template is arranged on the right-angle waist of the right-angle trapezoidal groove; An angle iron is provided at the bottom of the side wall formwork, rib plates are welded on the angle iron at equal intervals along the length direction thereof, and support rods are hinged on the rib plates; A number of fixing nuts are pre-embedded at equal intervals on the side of the carriageway, a supporting sleeve is provided between the top of the side wall formwork and the carriageway relative to each fixing nut, one end of a number of screw rods passes through the side wall formwork, the supporting sleeve and is screwed to the fixing nut, and the other end is fixed by a locking nut.

2. The bioretention ditch side wall formwork construction structure according to claim 1, characterized in that: The support rod is further hingedly connected to the support foot away from its hinged end.

3. The bioretention ditch side wall formwork construction structure according to claim 2, characterized in that: The support rod is a telescopic rod.

4. The bioretention ditch side wall formwork construction structure according to claim 3, characterized in that: The support rod comprises a sleeve rod, a handle nut rotatably mounted on the end of the sleeve pipe, and a screw rod with one end arranged in the sleeve rod and threadedly connected with the handle nut.

5. The bioretention ditch side wall formwork construction structure according to claim 1, characterized in that: An angle iron is also provided on the top of the side wall formwork, and the screw rod passes through the angle iron and is screwed to the locking nut.

6. The bioretention ditch side wall formwork construction structure according to claim 5, characterized in that: The ends of the angle irons at the top and bottom of the side wall formwork are provided with connecting ear plates, and the adjacent side wall formworks are fixed with two connecting ear plates by bolts.

7. The bioretention ditch side wall formwork construction structure according to any one of claims 1 to 6, characterized in that: It also includes a plurality of auxiliary supporting wood pieces, one end of which abuts against the middle of the side wall formwork, and the other end of which abuts against the groove wall of the retention groove.

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