Formwork supporting structure for pavement base construction

Abstract

The utility model discloses a template supporting structure for pavement base construction. The template supporting structure comprises a template, a supporting pipe, a sleeve, a bearing beam and a bolt, two opposite side walls of the template are provided with through threaded holes; the supporting pipe is vertically arranged, and one end of the supporting pipe is fixed in a soil body outside a pavement base layer; the casing pipe sleeves the outer wall of the supporting pipe, and a connecting rib is fixed on the outer wall of the casing pipe; one side wall of the bearing beam is fixed to the end, away from the sleeve, of the connecting rib, and the other side wall of the bearing beam abuts against the side wall, away from the pavement base layer, of the formwork. A through hole communicated with the threaded hole is formed in the side wall of the bearing beam; the threaded end of the bolt sequentially penetrates through the through hole and the threaded hole and fastens the bearing beam and the formwork through a nut. The supporting pipe is fixed on the outer side of the formwork and supports the bearing beam, the bearing beam and the formwork are fastened through the bolt, a pulling steel chisel on the inner side of the formwork is omitted, the problem that the steel chisel affects the paving quality of a road surface base course is solved, the turnover efficiency of the formwork is improved in a detachable mode, and waste of materials is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of road base construction templates, and more specifically to a template supporting structure for road base construction. Background Art

[0002] With the improvement of road construction standards, the quality requirements for the pavement construction of new roads are higher. Since the construction of the pavement base affects the subsequent construction, its construction efficiency and quality directly affect the construction efficiency and quality of the expressway.

[0003] The pavement base is a layered structure that is paved in layers on the surface of the roadbed (or cushion layer) using a single material according to certain technical measures. The quality of its materials and quality directly affects the quality and performance of the pavement. The base is the load-bearing layer of the entire road. It plays a role in stabilizing the road surface. The pavement base is divided into an inorganic binder stabilized base and a crushed and gravel base. During the paving process of the inorganic binder stabilized base of the pavement base, the side template is required to limit the position and form the material of the pavement base.

[0004] However, the existing pavement base side formwork used in highway construction has a relatively complicated connection structure during use. It is usually necessary to support the formwork with a steel pipe on one side and use a steel bar to tie it on the other side to form a formwork support structure that is both pulled and supported. However, during the paving and rolling operations of the pavement base, the steel bar will be poured into the pavement base and cannot be removed, affecting the construction quality of the pavement base. In addition, during the operation, the tying performance of the steel bar is easily affected, causing the formwork to float and the line shape of the formwork to change, affecting the construction quality and aesthetics of the pavement base. In addition, it is difficult to disassemble, resulting in waste of materials.

[0005] Therefore, how to provide a pavement base template support structure that ensures the stability of the template, ensures the quality of pavement base construction, and can be recycled and reused is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0006] In view of this, the utility model provides a template support structure for road base construction, aiming to solve the above technical problems.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A formwork support structure for road base construction, comprising:

[0009] A template, wherein the template consists of two pieces and is arranged relatively parallel to the two sides of the pavement base, and threaded holes are provided on the template;

[0010] A support pipe, one end of which is vertically fixed in the soil outside the pavement base;

[0011] A sleeve, wherein the sleeve is sleeved on the outer wall of the support tube, and a connecting rib is fixed to the outer wall of the sleeve;

[0012] A cushion beam, one side wall of the cushion beam is fixed to one end of the connecting rib away from the sleeve, and the other side wall is in contact with a side wall of the template away from the pavement base; a through hole connected to the threaded hole is formed on the side wall of the cushion beam;

[0013] A bolt, the threaded end of which passes through the through hole and is screwed into the threaded hole, and the bolt fastens the cushion beam and the template through a nut.

[0014] The beneficial effect of the above technical solution is that the support tube is fixed on the outside of the formwork, the support tube supports the cushion beam, the cushion beam and the formwork are fastened by bolts, the tie steel bar on the inside of the formwork is eliminated, and the problem of the steel bar affecting the paving quality of the road base will not occur. The formwork is fastened to the cushion beam by bolts, and the detachable manner improves the turnover efficiency of the formwork and reduces material waste.

[0015] Preferably, a pad is fixed to one side wall of the template facing the pavement base, a connecting hole penetrating the threaded hole is provided on the panel of the pad, and the nut is fixed to the side wall of the pad opposite to the connecting hole and away from the template. The pad, nut and template are fixed as a whole, and the threaded end of the bolt is screwed in turn with the through hole of the cushion beam, the threaded hole of the template, the connecting hole of the pad and the nut to tighten. When the template is removed, the bolt is screwed in, and the template, pad and nut can be separated from the pavement base as a whole, and the nut will not occupy the paving space of the pavement base, which effectively ensures the paving quality of the pavement base, and no other auxiliary parts for template support other than aggregate will appear in the pavement base.

[0016] Preferably, there are two bolts, which are symmetrically arranged up and down along the template. The two screws improve the stability of the connection between the template and the cushion beam.

[0017] Preferably, two connecting bars are provided, and the axes of the two connecting bars are at an obtuse angle to the outer wall of the casing. The connecting bars are at a certain angle to the outer wall of the casing and the cushion beam, which ensures effective support between the connecting bars and the cushion beam and prevents the template from being squeezed and deformed due to the paving operation of the roadbed foundation.

[0018] Preferably, the cushion beam is a channel steel, a support column is fixed between two opposite channel walls of the channel steel, and one end of the two connecting bars away from the sleeve is fixed to the outer wall of the support column. The connecting bars are fixed to the cushion beam through the support column, which improves the bearing capacity between the cushion beam and the connecting bars, and further prevents deformation of the template during the pavement base paving operation.

[0019] Preferably, the templates are provided in multiple pieces, one end of each of the templates is provided with a dovetail groove, and the other end is fixed with a dovetail tenon that matches the dovetail groove; two adjacent templates are fastened by plugging the dovetail tenon into the dovetail groove. The plugging between the dovetail groove and the dovetail tenon between the two adjacent templates ensures that the templates are linearly smooth after installation, and prevents cement slurry leakage at the joints between the two adjacent templates.

[0020] Preferably, the ends of the multiple templates away from the side walls of the road base are fixed with anchor bars arranged along the length direction thereof, and the two anchor bars arranged opposite to each other between two adjacent templates are fastened by sleeves. After the templates are assembled by dovetail tenons and dovetail grooves, the outer sides are connected by anchor bars and sleeves to ensure the integrity of the connection of the multiple templates and prevent deformation of the templates during the paving process of the road base.

[0021] Preferably, two groups of support tubes are provided on the outer side of each template away from the road base, and the two groups of support tubes are evenly distributed along the length direction of the template; a flat joint is welded between the outer walls of the two groups of support tubes corresponding to the opposite ends of two adjacent templates. Each template is supported by two groups of support tubes, which improves the firmness of the template after installation. The support rods at the ends of two adjacent templates are connected by a flat joint to ensure that the assembled template and the support tube form an integral stable support structure. After the template is installed, it can be supported by the support tube, without the need to use a steel chisel to tie the inner side of the template, which improves the efficiency of template installation and ensures the pouring quality of the road base.

[0022] Preferably, it further comprises an anchor, one end of which is anchored in the soil outside the pavement base, and the other end is exposed to the soil, and the support pipe is sleeved on the outer wall of the anchor that is exposed to the soil. One end of the anchor is anchored in the soil, and the support pipe is sleeved on the anchor, which improves the installation and removal efficiency of the support pipe.

[0023] Preferably, a guide cone is fixed to the top of the anchor, which can facilitate the insertion of the support pipe into the anchor, further improving the installation and removal efficiency of the formwork support.

[0024] It can be seen from the above technical scheme that compared with the prior art, the utility model discloses a formwork support structure for road base construction, in which the support pipe sleeve is arranged on the anchor, and multiple forms are connected by plug-in and sleeve to ensure that the formwork is a whole after assembly. The formwork is fastened by a pad beam and bolts, and the formwork is supported by the support pipe. The formwork performance can be met without pulling. The formwork, pad and nut are an integral structure. After the formwork is removed, it will not affect the pouring quality of the road base, thereby improving the construction efficiency; the bolt connection method improves the turnover efficiency of the formwork and reduces material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 A cross-sectional view of the pavement base template support provided by the utility model;

[0027] Figure 2 for Figure 1 A magnified schematic diagram of part A in FIG.

[0028] Figure 3 A top view of the template support structure provided by the utility model;

[0029] Figure 4 for Figure 3 An enlarged schematic diagram of part B in FIG.

[0030] in,

[0031] 1-support tube; 2-sleeve; 3-connecting rib; 4-cushion beam; 5-bolt; 6-pad; 7-support column; 8-template; 9-dovetail groove; 10-dovetail tenon; 11-anchor rib; 12-sleeve; 13-anchor; 14-guide cone; 15-flat joint. DETAILED DESCRIPTION

[0032] 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.

[0033] The utility model discloses a template support structure for road base construction, which can meet its use performance only by supporting the template, and can facilitate turnover while ensuring the quality of road base construction, including:

[0034] The template 8 consists of two pieces which are arranged parallel to each other on both sides of the pavement base and have threaded holes thereon;

[0035] A support pipe 1, one end of which is vertically fixed in the soil outside the road base;

[0036] The sleeve 2 is sleeved on the outer wall of the support tube 1, and the outer wall of the sleeve 2 is fixed with a connecting rib 3;

[0037] A cushion beam 4, one side wall of the cushion beam 4 is fixed to one end of the connecting rib 3 away from the sleeve 2, and the other side wall is in contact with a side wall of the template 8 away from the pavement base; a through hole connected to the threaded hole is provided on the side wall of the cushion beam 4;

[0038] Bolt 5, the threaded end of bolt 5 passes through the through hole and is screwed into the threaded hole, and the bolt fastens the cushion beam 4 and the template 8 through the nut.

[0039] In this embodiment, the inner wall of the sleeve can slide along the outer wall of the support tube. By adjusting the relative position of the sleeve and the support tube, the sleeve is aligned with the outer side wall of the template to achieve the template support effect.

[0040] In order to further optimize the above technical solution, prevent the problem of nuts being unable to be removed after the pavement base is paved, and ensure the overall performance of the pavement base, a pad 6 is fixed to the side wall of the template 8 facing the pavement base, and a connecting hole that penetrates the threaded hole is opened on the panel of the pad 6. A nut is fixed to the side wall of the pad 6 opposite to the connecting hole and away from the template.

[0041] The formwork, pad and nut are welded into an integral structure. When the bolts are installed, the through holes passing through the pad beam are screwed into the threaded holes of the formwork, and the connecting holes are exposed and locked with the nuts. When dismantling, loosen the bolts, and the formwork, pad and nut can be separated from the pavement base as a whole. After the pavement base is paved, the nuts will not be buried in the pavement base, ensuring the paving quality and integrity of the pavement base. At the same time, the overall structure formed by the formwork, pad and nut can be used in rotation, improving the utilization rate of materials.

[0042] In order to further optimize the above technical solution, improve the supporting effect of the formwork, and ensure the firmness of the formwork support, two bolts 5 are provided, and the two bolts 5 are symmetrically arranged up and down along the formwork.

[0043] In order to further optimize the above technical solution, ensure the supporting capacity of the connecting ribs and prevent deformation of the connecting ribs, two connecting ribs 3 are provided, and the axes of the two connecting ribs 3 form an obtuse angle with the outer wall of the sleeve 2.

[0044] In order to further optimize the above technical solution, improve the connection performance between the connecting ribs and the cushion beam, ensure sufficient bearing capacity of the cushion beam, and prevent the extrusion and deformation of the formwork during the paving of the pavement base, the cushion beam 4 is a channel steel, and a support column 7 is fixed between the two opposite channel walls of the channel steel. The ends of the two connecting ribs 3 away from the sleeve 2 are fixed to the outer wall of the support column 7.

[0045] In this embodiment, there are multiple templates 8, one end of each template 8 is provided with a dovetail groove 9, and the other end is fixed with a dovetail tenon 10 that matches the dovetail groove 9; two adjacent templates are fastened to the dovetail groove 9 by plugging the dovetail tenon 10 into the dovetail groove 9.

[0046] The formwork is made of aluminum alloy or wood, and is assembled by dovetail joints and dovetail grooves. The overall formwork after splicing has a very high degree of integrity, the line shape is smoother, and there will be no leakage of cement slurry at the joints of the formwork.

[0047] In order to further optimize the above technical solution and improve the overall stress-bearing performance of the templates after assembly, the ends of the multiple templates 8 away from the side walls of the pavement base are fixed with anchor bars 11 arranged along their length direction, and the two anchor bars 11 arranged opposite to each other between two adjacent templates 8 are fastened by sleeves 12.

[0048] The length of the sleeve is 6cm, and the anchor is a threaded steel bar with a diameter of not less than 16. The end is threaded. One end of the anchor is welded to the outer wall of the template, and the other end is not welded to the template and a gap greater than the thickness of the sleeve wall is reserved to facilitate the tightening of the sleeve. After the sleeve is tightened, no more than three threads are exposed outside the sleeve.

[0049] In order to further optimize the above technical solution, ensure that the support assembly formed by the support tube, sleeve, connecting rib and pad beam and the template assembly formed by the template, pad and nut form a whole, and the template is also a whole after assembly, to ensure the anti-extrusion deformation ability of the overall force-bearing unit, two groups of support tubes 1 are provided on the outside of each template 8 away from the pavement base, and the two groups of support tubes 1 are evenly distributed along the length direction of the template 8; a flat joint 15 is welded between the outer walls of the two groups of support tubes 1 corresponding to the opposite ends of two adjacent templates 8.

[0050] In order to further optimize the above technical solution and improve the installation and removal efficiency of the support pipe, it also includes an anchor 13, one end of which is anchored in the soil outside the pavement base, and the other end is exposed to the soil, and the support pipe 1 is sleeved on the outer wall of the anchor 13 that leaks out of the soil.

[0051] In order to further optimize the above technical solution and facilitate the installation of the casing and the anchor, a guide cone 14 is fixed to the top of the anchor 13.

[0052] 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.

[0053] 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 formwork support structure for road base construction, characterized in that: include: A template (8), wherein the template (8) consists of two pieces and is arranged relatively parallel to the two sides of the pavement base, and has threaded holes therein; A support pipe (1), one end of which is vertically fixed in the soil outside the road surface base; A sleeve (2), the sleeve (2) being sleeved on the outer wall of the support tube (1), and a connecting rib (3) being fixed to the outer wall of the sleeve (2); A cushion beam (4), one side wall of the cushion beam (4) is fixed to one end of the connecting rib (3) away from the sleeve (2), and the other side wall is in contact with a side wall of the template (8) away from the pavement base; a through hole connected to the threaded hole is provided on the side wall of the cushion beam (4); A bolt (5), the threaded end of the bolt (5) passes through the through hole and is screwed into the threaded hole, and the bolt fastens the cushion beam (4) and the template (8) via a nut.

2. A formwork support structure for road base construction according to claim 1, characterized in that: A pad (6) is fixed to a side wall of the template (8) facing the pavement base, a connecting hole that penetrates the threaded hole is opened on the panel of the pad (6), and the nut is fixed to the side wall of the pad (6) opposite to the connecting hole and away from the template.

3. A formwork support structure for road base construction according to claim 2, characterized in that: Two bolts (5) are provided, and the two bolts (5) are symmetrically arranged up and down along the template (8).

4. A formwork support structure for road base construction according to claim 1, characterized in that: Two connecting ribs (3) are provided, and the axes of the two connecting ribs (3) form an obtuse angle with the outer wall of the sleeve (2).

5. A formwork support structure for road base construction according to claim 4, characterized in that: The cushion beam (4) is a channel steel, a support column (7) is fixed between two opposite channel walls of the channel steel, and one end of the two connecting ribs (3) away from the sleeve (2) is fixed to the outer wall of the support column (7).

6. A formwork support structure for road base construction according to claim 1, characterized in that: The templates (8) are provided in a plurality of pieces, each of which has a dovetail groove (9) at one end and a dovetail tenon (10) matched with the dovetail groove (9) fixed at the other end; two adjacent templates are fastened to the dovetail groove (9) by plugging the dovetail tenon (10) into the dovetail groove (9).

7. A formwork support structure for road base construction according to claim 6, characterized in that: Anchor bars (11) arranged along the length direction are fixed to the ends of the plurality of templates (8) away from the side walls of the pavement base, and the two anchor bars (11) arranged opposite to each other between two adjacent templates (8) are fastened by sleeves (12).

8. A formwork support structure for road base construction according to claim 7, characterized in that: Two groups of support tubes (1) are provided on the outer side of each template (8) away from the pavement base layer, and the two groups of support tubes (1) are evenly distributed along the length direction of the template (8); and a flat joint (15) is welded between the outer walls of the two groups of support tubes (1) corresponding to the opposite ends of two adjacent templates (8).

9. A formwork support structure for road base construction according to any one of claims 1 to 8, characterized in that: It also comprises an anchor (13), one end of which is anchored in the soil outside the pavement base, and the other end is exposed outside the soil, and the support pipe (1) is sleeved on the outer wall of the anchor (13) and exposed outside the soil.

10. A formwork support structure for road base construction according to claim 9, characterized in that: A guide cone (14) is fixed to the top end of the anchor (13).

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