CN112252360A - Prefabricated retaining wall and construction method thereof - Google Patents
Prefabricated retaining wall and construction method thereof Download PDFInfo
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- CN112252360A CN112252360A CN202011162955.9A CN202011162955A CN112252360A CN 112252360 A CN112252360 A CN 112252360A CN 202011162955 A CN202011162955 A CN 202011162955A CN 112252360 A CN112252360 A CN 112252360A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/025—Retaining or protecting walls made up of similar modular elements stacked without mortar
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Abstract
The invention relates to a prefabricated retaining wall and a construction method thereof, and belongs to the field of road traffic construction. The retaining wall comprises a foundation, prefabricated blocks with different specifications and a plurality of structural columns; the front and back surfaces of the precast blocks are inclined towards one side, bulges are arranged on the front and back surfaces of the precast blocks, grooves are arranged on the lower surfaces of the precast blocks, the precast blocks with different specifications are spliced layer by layer in a staggered joint mode to form a wall body inclined towards one side, and the bulges of the lower-layer precast blocks extend into the grooves of the upper-layer precast blocks and are clamped between the adjacent layers; the foundation is arranged on the foundation and connected with the wall body to support the wall body; the structure post links to each other with the basis to along the length direction interval arrangement of wall body, run through the wall body along the direction of height of wall body, be equipped with the preformed hole that supplies the structure post to pass on the prefabricated section that corresponds with the structure post. The staggered joint assembly is beneficial to improving the structural strength of the wall body; the structural columns better connect the wall body formed by splicing the foundation and the precast blocks, and simultaneously transmit the soil pressure behind the wall to the whole retaining wall, so that the retaining wall is uniformly stressed; the wall body inclines to one side of the soil body, and the dead weight is utilized to resist the soil pressure behind the wall.
Description
Technical Field
The invention belongs to the field of road traffic construction, and relates to a prefabricated retaining wall and a construction method thereof.
Background
In recent years, with the rapid increase of the economy and the continuous progress of science and technology in China, the national requirements on road traffic construction are increased day by day, and the efficiency is pursued and the engineering quality also needs to be guaranteed. Retaining walls are an important part in road traffic engineering, and the quality and stability of retaining walls have a profound influence on structures and soil bodies built according to the walls. In the highway construction, because the geological conditions of China are very complicated, in order to avoid deeply digging a roadbed by high fill, reduce the height of a side slope, strengthen the stability of the roadbed, prevent roadbed diseases, prevent water flow from scouring to influence the stability of a embankment, save land occupation, reduce farmland occupation, protect important existing buildings and the like, a roadbed retaining wall is often required to be arranged and is widely used in the highway engineering construction.
Most reinforced concrete projects at the present stage still adopt the traditional cast-in-place construction process, and the construction period is long, the manpower input is large, the material consumption is more, and the pollution is serious. The prefabricated retaining wall structure starts late in China and is low in development speed. Since 2016, the country has continuously come out a plurality of policies about prefabricated retaining wall structures, and the development of the prefabricated retaining wall structures and the construction of green building processes are strongly promoted. The prefabricated retaining wall structure has the characteristics of reliable quality, high mechanization degree, attractive appearance and the like, and is bound to become a trend of structural development in the road traffic industry. Therefore, there is a need for innovations and exploration of prefabricated retaining wall structures.
Disclosure of Invention
In view of the above, the present invention provides a prefabricated retaining wall and a construction method thereof, which solve the disadvantages of the existing cast-in-place retaining wall.
In order to achieve the purpose, the invention provides the following technical scheme:
a prefabricated retaining wall comprises a foundation, prefabricated blocks with different specifications and a plurality of structural columns; the front and back surfaces of the precast blocks are inclined towards one side, bulges are arranged on the front and back surfaces of the precast blocks, grooves are arranged on the lower surfaces of the precast blocks, the precast blocks with different specifications are spliced layer by layer in a staggered joint mode to form a wall body inclined towards one side, and the bulges of the lower-layer precast blocks extend into the grooves of the upper-layer precast blocks and are clamped between the adjacent layers; the foundation is arranged on the foundation and connected with the wall body to support the wall body; the structure post links to each other with the basis to along the length direction interval arrangement of wall body, run through the wall body along the direction of height of wall body, be equipped with the preformed hole that supplies the structure post to pass on the prefabricated section that corresponds with the structure post.
Further, the precast block has five specifications which are respectively a first precast block unit, a second precast block unit, a third precast block unit, a fourth precast block unit and a fifth precast block unit; the first precast block unit and the second precast block unit are assembled to form a layer of wall body, and the first precast block unit, the third precast block unit, the fourth precast block unit and the fifth precast block unit are assembled to form adjacent layers of wall bodies in an alternate building mode; in the first-layer wall body, a preformed hole is formed in the second precast block unit and used for a structural column to penetrate through; in the adjacent layer wall body, the preformed hole is arranged on the third precast block unit to be passed through by the structural column, and the fourth precast block unit and the fifth precast block unit on the same layer are spliced to form a complete preformed hole to be passed through by the adjacent structural column.
Further, the fourth precast block unit and the fifth precast block unit each occupy half of the prepared hole.
Furthermore, the precast blocks at two ends of the wall in the length direction are a second precast block unit and a third precast block unit of an adjacent layer.
Furthermore, the first precast block unit is provided with a drainage hole penetrating through the upper surface and the lower surface.
Further, the protrusion and the groove are respectively provided in the middle of the upper and lower surfaces of the precast block and extend between the left and right surfaces of the precast block.
Further, the structure post encloses the billet of establishing in many reinforcing bars peripheries including being many reinforcing bars that square arranging and following reinforcing bar length direction interval.
Further, the structural pillars are arranged at equal intervals.
A construction method of a prefabricated retaining wall comprises the following steps:
s1, manufacturing a precast block in advance: respectively pouring concrete by using special moulds to manufacture precast blocks with different specifications, wherein the front and back surfaces of each precast block are inclined towards one side, a bulge is arranged on the upper surface of each precast block, a groove is arranged on the lower surface of each precast block, and a preformed hole is also formed in part of the precast blocks with the specifications;
s2, foundation and structural column construction on site: excavating a foundation at a preset position, pouring concrete on the foundation to manufacture the foundation, and arranging a plurality of structural columns on the foundation at intervals;
s3, building a wall body on site: the prefabricated blocks with different specifications are spliced layer by layer on the basis to form a wall body inclined to one side, and the structural column penetrates through the wall body along the height direction of the wall body through the preformed holes in the prefabricated blocks with partial specifications.
The invention has the beneficial effects that:
(1) the invention improves the structural strength of the retaining wall, ensures the quality of the retaining wall and prolongs the service life of the retaining wall by the following three aspects: 1) assembling the prefabricated blocks with different specifications to enable gaps among the prefabricated blocks to be staggered; 2) the structure columns are additionally arranged, so that the wall body formed by splicing the foundation and the precast blocks is better connected, and meanwhile, the soil pressure behind the wall is transmitted to the whole retaining wall, so that the retaining wall is uniformly stressed; 3) the front and back surfaces of the prefabricated blocks are inclined towards one side, so that the wall surface of the wall body formed after assembly is inclined towards one side where the soil body is located, and the self gravity of the wall body is utilized to resist the soil pressure behind the wall.
(2) Compared with a cast-in-place wall body, the prefabricated block adopted by the invention is manufactured in advance, so that the construction period is greatly shortened, the labor and material costs are reduced, and the green construction concept is met.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural view of a prefabricated retaining wall according to the present invention;
FIG. 2 is a schematic view of a first preform block unit;
FIG. 3 is a schematic structural view of a second preform block unit;
FIG. 4 is a schematic structural view of a third preform block unit;
fig. 5 is a schematic structural view of the fourth precast block unit and the fifth precast block unit after being spliced.
Reference numerals: first prefabricated section unit 1, second prefabricated section unit 2, third prefabricated section unit 3, fourth prefabricated section unit 4, fifth prefabricated section unit 5, structure post 6, arch 7, recess 8, preformed hole 9.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 5, a prefabricated retaining wall includes a foundation (not shown), prefabricated blocks of different specifications, and a plurality of structural columns 6; the front and back surfaces of the precast blocks are inclined towards one side, the protrusions 7 are arranged on the front and back surfaces of the precast blocks, the grooves 8 are arranged on the lower surface of the precast blocks, the precast blocks with different specifications are spliced layer by layer to form a wall body inclined towards one side, and the protrusions 7 of the lower precast block extend into the grooves 8 of the upper precast block and are clamped between the adjacent layers; the foundation is arranged on the foundation and connected with the wall body to support the wall body; the structural columns 6 are connected with the foundation and are arranged at equal intervals along the length direction of the wall body, the wall body penetrates through the height direction of the wall body, and preformed holes 9 for the structural columns 6 to penetrate through are formed in the precast blocks corresponding to the structural columns 6.
Specifically, the precast block has five specifications, namely a first precast block unit 1, a second precast block unit 2, a third precast block unit 3, a fourth precast block unit 4 and a fifth precast block unit 5; a first precast block unit 1 and a second precast block unit 2 are assembled to form a layer of wall, and the first precast block unit 1, a third precast block unit 3, a fourth precast block unit 4 and a fifth precast block unit 5 are assembled to form adjacent layers of wall in an alternate building way; in one layer of wall, a preformed hole 9 is formed in the second precast block unit 2 for the structural column 6 to pass through; in the adjacent layer wall body, preformed hole 9 is located on third prefabricated section unit 3 for structural column 6 to pass to, fourth prefabricated section unit 4 and the fifth prefabricated section unit 5 of the same layer respectively account for half preformed hole 9, and the amalgamation forms complete preformed hole 9 and passes for adjacent structural column 6. The precast blocks at two ends of the wall in the length direction are a second precast block unit 2 and a third precast block unit 3 of an adjacent layer.
The first prefabricated block unit 1 is provided with a drainage hole (not shown) penetrating through the upper surface and the lower surface so as to drain rainwater in time and avoid corroding a wall body.
The protrusion 7 and the groove 8 are respectively provided in the middle of the upper and lower faces of the prefabricated section and extend between the left and right faces of the prefabricated section.
The structural column 6 is composed of four parallel reinforcing bars arranged in a square shape (not shown), and a plurality of steel bars hooped with the four reinforcing bars are arranged at intervals along the length direction (the height direction of the wall body) of the reinforcing bars so as to ensure that the structural column 6 is not deformed integrally.
The construction method of the prefabricated retaining wall provided by the embodiment comprises the following steps:
s1, manufacturing a precast block in advance: selecting a temporary construction site with convenient traffic, hardening, and making a drainage system; supporting five special moulds with different specifications on an adjacent construction site, respectively pouring concrete by using the special moulds, manufacturing precast blocks with five specifications, removing the moulds and preserving the concrete after the concrete reaches a certain strength, and obtaining a first precast block unit 1, a second precast block unit 2, a third precast block unit 3, a fourth precast block unit 4 and a fifth precast block unit 5 which are disclosed by the embodiment;
s2, building a foundation and a structural column on site 6: excavating a foundation at a preset position, pouring concrete on the foundation to manufacture the foundation, and arranging a plurality of structural columns 6 on the foundation at intervals;
s3, building a wall body on site: the prefabricated blocks with five specifications are spliced layer by layer on a foundation in a staggered manner to form a wall body inclined to one side where the soil body is located, and the structural column 6 penetrates through the wall body in the height direction of the wall body through the preformed holes 9 in the prefabricated blocks with part of specifications.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (9)
1. A prefabricated retaining wall which is characterized in that: the prefabricated structure comprises a foundation, prefabricated blocks with different specifications and a plurality of structural columns; the front and back surfaces of the precast blocks are inclined towards one side, bulges are arranged on the front and back surfaces of the precast blocks, grooves are arranged on the lower surfaces of the precast blocks, the precast blocks with different specifications are spliced layer by layer in a staggered manner to form a wall body inclined towards one side, and the bulges of the lower precast block are inserted into the grooves of the upper precast block and clamped between the adjacent layers; the foundation is arranged on the foundation and connected with the wall body to support the wall body; the structure post links to each other with the basis to along the length direction interval arrangement of wall body, run through the wall body along the direction of height of wall body, be equipped with the preformed hole that supplies the structure post to pass on the prefabricated section that corresponds with the structure post.
2. The prefabricated retaining wall of claim 1, wherein: the prefabricated blocks have five specifications, namely a first prefabricated block unit, a second prefabricated block unit, a third prefabricated block unit, a fourth prefabricated block unit and a fifth prefabricated block unit; the first precast block unit and the second precast block unit are assembled to form a layer of wall body, and the first precast block unit, the third precast block unit, the fourth precast block unit and the fifth precast block unit are assembled to form adjacent layers of wall bodies in an alternate building mode; in the first-layer wall body, a preformed hole is formed in the second precast block unit and used for a structural column to penetrate through; in the adjacent layer wall body, the preformed hole is arranged on the third precast block unit to be passed through by the structural column, and the fourth precast block unit and the fifth precast block unit on the same layer are spliced to form a complete preformed hole to be passed through by the adjacent structural column.
3. The prefabricated retaining wall of claim 2, wherein: the fourth precast block unit and the fifth precast block unit each occupy half of the prepared hole.
4. The prefabricated retaining wall of claim 2, wherein: the precast blocks at two ends of the length direction of the wall body are the second precast block unit and the third precast block unit of the adjacent layer.
5. The prefabricated retaining wall of claim 2, wherein: and the first precast block unit is provided with a drainage hole penetrating through the upper surface and the lower surface.
6. The prefabricated retaining wall of claim 1, wherein: the protrusions and the grooves are respectively arranged in the middle of the upper surface and the lower surface of the precast block and extend between the left surface and the right surface of the precast block.
7. The prefabricated retaining wall of claim 1, wherein: the structure post encloses the billet of establishing in many reinforcing bars periphery including being many reinforcing bars that square arranged and along reinforcing bar length direction interval.
8. The prefabricated retaining wall of claim 1, wherein: the structural columns are arranged at equal intervals.
9. A construction method of a prefabricated retaining wall is characterized by comprising the following steps: the method comprises the following steps:
s1, manufacturing a precast block in advance: respectively pouring concrete by using special moulds to manufacture precast blocks with different specifications, wherein the front and back surfaces of each precast block are inclined towards one side, a bulge is arranged on the upper surface of each precast block, a groove is arranged on the lower surface of each precast block, and a preformed hole is also formed in part of the precast blocks with the specifications;
s2, foundation and structural column construction on site: excavating a foundation at a preset position, pouring concrete on the foundation to manufacture the foundation, and arranging a plurality of structural columns on the foundation at intervals;
s3, building a wall body on site: the prefabricated blocks with different specifications are spliced layer by layer on the basis to form a wall body inclined to one side, and the structural column penetrates through the wall body along the height direction of the wall body through the preformed holes in the prefabricated blocks with partial specifications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011162955.9A CN112252360A (en) | 2020-10-27 | 2020-10-27 | Prefabricated retaining wall and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011162955.9A CN112252360A (en) | 2020-10-27 | 2020-10-27 | Prefabricated retaining wall and construction method thereof |
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| CN112252360A true CN112252360A (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011162955.9A Pending CN112252360A (en) | 2020-10-27 | 2020-10-27 | Prefabricated retaining wall and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405019A (en) * | 2022-09-19 | 2022-11-29 | 中建正大科技有限公司 | Concrete connection structure and installation method thereof |
| CN116290078A (en) * | 2023-02-07 | 2023-06-23 | 重庆大学 | Prefabricated assembled barricade |
-
2020
- 2020-10-27 CN CN202011162955.9A patent/CN112252360A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405019A (en) * | 2022-09-19 | 2022-11-29 | 中建正大科技有限公司 | Concrete connection structure and installation method thereof |
| CN115405019B (en) * | 2022-09-19 | 2024-05-14 | 中建正大科技有限公司 | Concrete connecting structure and mounting method thereof |
| CN116290078A (en) * | 2023-02-07 | 2023-06-23 | 重庆大学 | Prefabricated assembled barricade |
| CN116290078B (en) * | 2023-02-07 | 2024-05-28 | 重庆大学 | Prefabricated assembled barricade |
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