CN111424703B

CN111424703B - Prefabricated base of road or bridge temporary retaining wall

Info

Publication number: CN111424703B
Application number: CN202010265308.4A
Authority: CN
Inventors: 赵雪; 李铁男; 巩慧文; 聂明
Original assignee: Jilin Jianzhu University
Current assignee: Jilin Jianzhu University
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2021-11-12
Anticipated expiration: 2040-04-07
Also published as: CN111424703A

Abstract

The invention discloses a prefabricated base of a temporary retaining wall of a road or a bridge, which is used for being combined with a temporary wall to form the temporary retaining wall, wherein the prefabricated base comprises a base body made of concrete and two upright posts arranged in parallel, the upright posts are connected to the base body through a connecting assembly and are arranged vertically, an upright post connecting piece is arranged between the two upright posts, and a wall fixing piece used for being connected with the side edge of the temporary wall is arranged on the outer side surface of the upright post connecting piece relative to the base body. Compared with the traditional retaining wall construction mode, the prefabricated base of the temporary retaining wall for the road or the bridge has the beneficial effects of easiness in construction and dismantling.

Description

Prefabricated base of road or bridge temporary retaining wall

Technical Field

The invention relates to a concrete prefabricated member, in particular to a prefabricated base of a temporary retaining wall of a road or a bridge.

Background

Generally, a structure installed under a shoulder wall or a bank wall or a highly filled embankment or a steep slope embankment is called a retaining wall, and the retaining wall may be applied to both ends of a bridge to serve as a wing wall or a bridge abutment and to serve as a retaining wall and a connection embankment. Normally, retaining walls can be classified into gravity retaining walls, anchored retaining walls, thin-walled retaining walls, and reinforced retaining walls. These are all fixed retaining walls. In actual production, there is still a temporary retaining wall that adopts in road or bridge work progress, and this type of retaining wall generally uses column plate formula retaining wall or pile plate formula retaining wall, also adopts buttress frame formula retaining wall, or called frame-type retaining wall. The temporary retaining wall is mainly applicable to temporary support of a side slope position in the construction process, prevents landslide and needs to be dismantled after construction is finished. However, the existing temporary retaining walls, that is, the temporary retaining walls adopting the column plate type, the pile plate type or the stacked frame type, have the defects of troublesome construction and difficult disassembly.

It can be seen that the above-mentioned problems with the prior art are in need of improvement.

Disclosure of Invention

In view of the above problems of the prior art, an object of the present invention is to provide a prefabricated foundation for a temporary retaining wall for roads or bridges, which is easy to construct and easy to remove.

In order to achieve the above purpose, the prefabricated base of the temporary retaining wall for roads or bridges provided by the invention is used for being combined with a temporary wall to form the temporary retaining wall, wherein the prefabricated base comprises a base body made of concrete and two upright posts arranged in parallel, the upright posts are connected to the base body through a connecting assembly and are arranged vertically, an upright post connecting piece is arranged between the two upright posts, and a wall fixing piece used for being connected with the side edge of the temporary wall is arranged on the outer side surface of the upright post connecting piece relative to the base body.

Preferably, the connecting assembly comprises a T-shaped bottom plate connected with the two upright posts and the base body respectively, and the bottom plate is connected to the base body through a fixing assembly and connected with the two upright posts through an upright post fixing piece.

Preferably, the bottom plate is further provided with a top plate, and the fixing assembly penetrates through the top plate and the bottom plate to be connected with the base body.

Preferably, the column fixing member penetrates through the top plate and the bottom plate, and a bolt fixing member is arranged at one end of the column fixing member opposite to the bottom plate, and the bolt fixing member is fixed on the top plate through a bolt, so that the column fixing member is adjustable in position in the vertical direction.

Preferably, a sliding groove is formed in the base body, the fixing assembly comprises a screw, one end of the screw is a clamping joint which is matched with the sliding groove and can slide in the sliding groove, and the other end of the screw is fixed on the top plate through a nut.

Preferably, the fixing assembly further includes a fixing plate, a tooth-shaped portion is formed on one side of the fixing plate, a fixing hole for the screw rod to pass through is formed in the top plate, a protruding tooth is arranged on an inner wall of the fixing hole, the tooth-shaped portion at least partially penetrates through the fixing hole, and a tooth-shaped outer edge of the tooth-shaped portion is matched with the protruding tooth.

Preferably, the upright post connecting piece at least comprises a second connecting piece for connecting two upright posts and a first connecting piece which is clamped with the second connecting piece and is used for connecting the wall fixing piece.

Preferably, at least a first inserting tenon and a second inserting tenon are formed at the connection position of the wall fixing piece and the first connecting piece, and at least first inserting grooves matched with the first inserting tenon and the second inserting tenon are correspondingly formed in the first connecting piece.

Preferably, at least a second slot which is in insertion fit with the first connecting piece is formed at the joint of the second connecting piece and the first connecting piece.

Preferably, the second connecting pieces for respectively fixing the two upright posts are respectively provided with two, and the first connecting piece and the wall fixing piece are respectively provided with two correspondingly; an inserting cavity with opposite openings is formed in one side, opposite to the two second connecting pieces, of each second connecting piece, and a third connecting piece used for connecting the two second connecting pieces penetrates through the inserting cavity.

Compared with the prior art, the prefabricated base of the temporary retaining wall for the road or the bridge, provided by the invention, has the beneficial effects that the construction is easy and the temporary retaining wall is easy to remove compared with the traditional retaining wall construction mode, because the prefabricated concrete base body is combined with the upright columns made of the inserted and matched section bars, and the temporary retaining wall is built by the plurality of wall plate assemblies in a matched connection mode of the tongue-and-groove and the bayonet.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

Fig. 1 is a perspective view (including A, B and a partial enlarged view of part C) showing one embodiment of a prefabricated foundation for a temporary retaining wall for roads or bridges according to the present invention.

Fig. 2 is a perspective view illustrating another embodiment of the prefabricated base for a temporary retaining wall for roads or bridges according to the present invention.

Fig. 3 is a side view of a first embodiment of a prefabricated base for a temporary retaining wall for roads or bridges according to the present invention.

Fig. 4 is a schematic sectional view taken along the direction a-a in fig. 3.

Fig. 5 is a perspective view illustrating a fixing member of a prefabricated base for a temporary retaining wall for roads or bridges according to the present invention.

Description of the main reference numerals:

1-prefabricated base, 2-temporary wall, 11-base body, 12-connection assembly, 13-column, 14-column connection, 21-tongue, 22-bayonet, 111-runner, 112-counterweight, 121-base plate, 122-top plate, 1221-fixing hole, 12211-lug, 123-fixing assembly, 1231-screw, 1232-nut, 1233-fixing plate, 12331-tooth, 1234-bayonet joint, 124-column fixing, 125-bolt, 126-bolt, 141-wall fixing, 142-first connection, 143-second connection, 144-third connection, 1411-first mortise, 1412-second mortise, 1421-first slot, 1431-bayonet cavity, 1432-second slot.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.

As shown in fig. 1 and 2, the embodiment of the invention provides a prefabricated foundation for a temporary retaining wall for roads or bridges, which is used to combine with a temporary wall 2 to form the temporary retaining wall, in which the temporary wall 2 is only partially shown, in fact, the temporary wall 2 can extend to both sides of the prefabricated foundation 1 and be connected with another adjacent prefabricated foundation 1, and as shown in fig. 1, the prefabricated wall 2 is formed by splicing a plurality of wall panels arranged up and down through a tongue-and-groove 21 and a bayonet 22, and is easy to construct and remove. Wherein, prefabricated base 1 includes concrete material's base body 11 and two stands 13 of parallel arrangement, stand 13 is connected through a connecting component 12 on the base body 11 and vertical to setting up, two be provided with stand connecting piece 14 between the stand 13, just stand connecting piece 14 for the lateral surface of base body 11 be provided with be used for with the wall body mounting 141 that temporary wall 2 side is connected. As shown in fig. 1, a plurality of wall assemblies are spliced on the wall fixture 141.

In the present invention, the base bodies 11 are concrete prefabricated members actually arranged at equal intervals in a place where a temporary retaining wall needs to be constructed, and the temporary wall body 2 in which wall assemblies are spliced is arranged between two adjacent prefabricated bases 1. In fact, the connecting assembly 12 is also a prefabricated component, as shown in fig. 1 and 2, preferably, the connecting assembly 12 includes a T-shaped bottom plate 121 connected to the two uprights 13 and the base body 11, respectively, and the bottom plate 121 is connected to the base body 11 through a fixing assembly 123 and is connected to the two uprights 13 through an upright fixing member 124. It can be seen that, in order to increase the link strength, preferably, a top plate 122 is further disposed on the bottom plate 121, and the fixing member 123 is connected to the base body 11 through the top plate 122 and the bottom plate 121. While it can be seen that the structure shown in fig. 1 and 2 is divided into two different embodiments, in the embodiment shown in fig. 2, the pillar fixing member 124 is preferably disposed through the top plate 122 and the bottom plate 121, and a bolt member 125 is disposed at an end opposite to the bottom plate 121, and the bolt member 125 is fixed to the top plate 122 by a bolt 126, so that the pillar fixing member 124 is adjustable in position in the vertical direction. The position of the vertical column fixing member 124 in the vertical direction is adjusted to actually adjust the height of the vertical column in the vertical direction, as shown in fig. 2, the bottom end of the vertical column 13 is actually higher than the base body 11, and the higher part is actually buried in the ground during construction, so that the stability of the whole temporary retaining wall is increased. Whereas in the embodiment shown in fig. 1, as shown in fig. 1, a counterweight 112 connected to the bottom plate 121 is provided at the lower part of the bottom plate 121 between the base body and the upright 13, and the counterweight may also be constructed by a concrete prefabricated member, in order to prevent the connecting assembly 12 from bending or even breaking due to excessive stress when the temporary wall 2 is subjected to strong wind, in this embodiment, the "T" shaped bottom plate 121 may also be a non-adjustable welded structure directly to the upright 13. However, it is more preferable that the two embodiments are combined, as shown in fig. 4, the bolt 125 is disposed inside the weight 112, and the bolt 126 passes through the top plate 122, the bottom plate 121 and the weight 112 to be connected to the bolt 125, in such a structure, the bolt 126 and the bolt 125 can be used to adjust the column in the vertical direction, and the weight 112 can also be used to enhance the wind resistance of the whole column.

As mentioned above, in some embodiments, the uprights 13 are arranged to be entirely adjustable in the vertical direction, which makes fine adjustment of the temporary wall 2 possible in the vertical direction. The adjustment in the horizontal direction can also be realized by the following structure: for example, the base body 11 is provided with a sliding slot 111, the fixing assembly 123 includes a screw 1231, one end of the screw 1231 is configured as a clamping head 1234 which is adapted to the sliding slot 111 and can slide in the sliding slot 111, and the other end is fixed on the top plate 122 through a nut 1232. As shown in fig. 5, the latch 1234 is configured as a "boat" for easy hooking, and the chute 111 is shaped to avoid falling out. Such a structure can make the horizontal position of the connecting component 12 at the fixed position of the base body 11 adjustable, and further make the horizontal position of the temporary wall body adjustable.

In a further improvement, in order to prevent the fixing assembly 123 from loosening and collapsing due to outdoor wind or soil load, as shown in fig. 1 and 5, preferably, the fixing assembly 123 further includes a fixing plate 1233, the fixing plate 1233 is configured with a tooth-shaped portion 12331 at one side of the top plate 122, the top plate 122 is provided with a fixing hole 1221 for the screw 1231 to pass through, the inner wall of the fixing hole 1221 is provided with a protruding tooth 12211, the tooth-shaped portion 12331 at least partially penetrates into the fixing hole 1221, and the outer edge of the tooth-shaped portion is matched with the protruding tooth 12211. Therefore, the fixing assembly 123 can be fixed more tightly to prevent rotation looseness.

For the vertical columns 13 in the present invention, each prefabricated foundation 1 should be provided with two parallel vertical columns 13, and the two vertical columns 13 are connected by a vertical column connecting member 14, in some embodiments, specifically, the vertical column connecting member 14 at least includes a second connecting member 143 for connecting the two vertical columns 13 and a first connecting member 142 clamped with the second connecting member 143 and for connecting the wall fixture 141. That is, the second connector 143 is used to connect the two columns 13, and the first connector 142 is used to connect the wall fixture 141 with the second connector 143. More specifically, as shown in fig. 1, at least a first inserting tenon 1411 and a second inserting tenon are formed at a connection position of the wall fixing member 141 and the first connecting member 142, and at least a first inserting groove 1421 matched with the first inserting tenon 1411 and the second inserting tenon is correspondingly formed in the first connecting member 142. For the connection relationship between the second connector 143 and the first connector 142, the connection relationship may also be a plug-in matching relationship, for example, at least a second slot 1432 that forms a plug-in fit with the first connector 142 is formed at the connection position between the second connector 143 and the first connector 142.

As for the second connecting members 143, the connection between the two vertical columns 13 is realized, specifically, two second connecting members 143 are respectively provided for fixing the two vertical columns 13, and correspondingly, two first connecting members 142 and two wall fixing members 141 are respectively provided; an insertion cavity 1431 with an opposite opening is formed at one side of the two second connecting pieces 143 opposite to each other, and a third connecting piece 144 for connecting the two second connecting pieces 143 is inserted into the insertion cavity 1431. Since the third connecting member 144 does not belong to a main bearing point when in use, the third connecting member 144 may be made of a plastic material and structurally configured as a wearing part, thereby facilitating the subsequent removal of the temporary retaining wall.

While there has been described what are believed to be the preferred embodiments of the present invention, it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the principles of the invention, and it is intended to cover all such changes and modifications as fall within the true scope of the invention.

Claims

1. The prefabricated base of the temporary retaining wall of the road or the bridge is used for being combined with a temporary wall body to form the temporary retaining wall, wherein the prefabricated base comprises a base body made of concrete and two upright columns arranged in parallel, the upright columns are connected to the base body through a connecting assembly and are arranged vertically, an upright column connecting piece is arranged between the two upright columns, and a wall body fixing piece used for being connected with the side edge of the temporary wall body is arranged on the outer side surface of the upright column connecting piece relative to the base body;

the connecting assembly comprises a T-shaped bottom plate which is respectively connected with the two stand columns and the base body, and the bottom plate is connected to the base body through a fixing assembly and is connected with the two stand columns through a stand column fixing piece; the bottom plate is also provided with a top plate, and the fixing assembly penetrates through the top plate and the bottom plate to be connected with the base body;

the base body is provided with a sliding groove, the fixing assembly comprises a screw rod, one end of the screw rod is constructed into a clamping joint which is matched with the sliding groove and can slide in the sliding groove, and the other end of the screw rod is fixed on the top plate through a nut.

2. A prefabricated foundation for a temporary retaining wall for roads or bridges as claimed in claim 1, wherein said column fixing member is provided through said top plate and said bottom plate, and a bolt member is provided at an end thereof opposite to said bottom plate, said bolt member being fixed to said top plate by means of bolts so that said column fixing member is adjustable in position in a vertical direction.

3. A prefabricated foundation for a temporary retaining wall for roads or bridges as claimed in claim 1, wherein said fixing assembly further comprises a fixing plate, said fixing plate is formed with a tooth portion at one side of said top plate, said top plate is formed with a fixing hole for said screw to pass through, the inner wall of said fixing hole is formed with a convex tooth, said tooth portion at least partially penetrates into said fixing hole and the outer edge of the tooth portion is matched with said convex tooth.

4. A prefabricated foundation for a temporary retaining wall for roads or bridges as claimed in claim 1, wherein said column connectors comprise at least a second connector for connecting two of said columns and a first connector for connecting said wall fixture in snap-fit engagement with said second connector.

5. A precast foundation base for a temporary retaining wall for roads or bridges as claimed in claim 4, wherein at least a first inserting tenon and a second inserting tenon are formed at the connection part of the wall body fixing member and the first connection member, and at least a first insertion groove matched with the first inserting tenon and the second inserting tenon is correspondingly formed at the first connection member.

6. A prefabricated foundation for a temporary retaining wall for roads or bridges as claimed in claim 4, wherein the junction of said second connecting element with said first connecting element is formed with at least a second slot for forming a plug-in fit with said first connecting element.

7. A prefabricated foundation for a temporary retaining wall for roads or bridges according to claim 4, wherein there are two of said second connecting members for fixing two of said columns, respectively, and there are two of said first connecting members and two of said wall fixing members, respectively; an inserting cavity with opposite openings is formed in one side, opposite to the two second connecting pieces, of each second connecting piece, and a third connecting piece used for connecting the two second connecting pieces penetrates through the inserting cavity.