CN114855870B - Pass-through reinforced earth retaining wall panel - Google Patents
Pass-through reinforced earth retaining wall panel Download PDFInfo
- Publication number
- CN114855870B CN114855870B CN202210609462.8A CN202210609462A CN114855870B CN 114855870 B CN114855870 B CN 114855870B CN 202210609462 A CN202210609462 A CN 202210609462A CN 114855870 B CN114855870 B CN 114855870B
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- CN
- China
- Prior art keywords
- panel
- reinforced
- panel unit
- retaining wall
- geogrid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004677 Nylon Substances 0.000 claims abstract description 12
- 229920001778 nylon Polymers 0.000 claims abstract description 12
- 239000002689 soil Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000010276 construction Methods 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 7
- 239000004570 mortar (masonry) Substances 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000004568 cement Substances 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- 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
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0283—Retaining or protecting walls characterised by constructional features of mixed type
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Retaining Walls (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention provides a penetrating reinforced earth retaining wall panel, wherein the cross section of the panel is L-shaped as a whole, vertical rectangular holes distributed longitudinally are arranged in the middle, and vertical positioning holes are arranged on two sides of the panel; the two mutually overlapped panels are aligned at the central axis, positioning steel bars are inserted into the positioning holes, and a panel unit with the same layering height D as the filling soil is formed; the reinforced belt passes through the rectangular hole from the lower part of the panel unit and surrounds the right part of the panel unit; the reinforced belt is lapped with the geogrid at the outer soil filling part of the right edge of the plate unit, and the lapping length E is tightly tied by nylon ties. The invention can ensure that the panel does not fall off, and reduce the cost of the die; the reinforced belt is wrapped in an arc shape, so that the influence of turning of the reinforced belt on the warping of the building block during the panel building is reduced, and the building speed and quality are improved.
Description
Technical Field
The invention belongs to the field of side slope engineering, and particularly relates to a pass-through reinforced earth retaining wall panel.
Background
The traditional reinforced earth retaining wall adopts a method of grouting the geogrid between panels to connect the panels with the geogrid, and the panel structure is influenced by factors such as grouting quality, upper panel pressing weight, panel surface friction and the like, so that effective connection of the panels and the geogrid is difficult to ensure. In recent years, with a great deal of application of reinforced earth retaining walls, engineering failure caused by panel falling often occurs, and the phenomenon of reinforced earth retaining wall engineering accidents is a common phenomenon.
Based on this, document CN214089966U provides a wrapped reinforced retaining wall combined panel ensuring that the panel is effectively connected with the geogrid, which adopts a first retaining wall panel, a second retaining wall panel and a middle panel that are mutually embedded and connected, and the geogrid bypasses the middle panel to form a wrapped form.
However, the wrapped reinforced retaining wall combined panel needs to use two sets of dies to prepare the panel component, and has the problems of high die opening cost and high manufacturing cost.
Disclosure of Invention
The invention aims to provide a penetrating reinforced earth retaining wall panel, which can be prepared by only using one set of mould on the premise of ensuring effective connection of the panel and a geogrid, and at least solves the problems of high mould opening cost and high manufacturing cost.
The invention adopts the following technical scheme to solve the problems, and the specific scheme is as follows.
The utility model provides a pass through reinforced earth barricade panel which characterized in that: the section of the panel is L-shaped as a whole, n (n is more than or equal to 1) vertical rectangular holes which are longitudinally distributed are arranged in the middle, and four vertical positioning holes are arranged on two sides of the panel; rotating one panel clockwise for 180 degrees and then overlapping the other panel, aligning the two panels at the central axis, and inserting positioning steel bars into the vertical positioning holes to form a panel unit consistent with the filling layering height D; the reinforced belt penetrates through the vertical rectangular hole from the lower part of the panel unit and surrounds the right part of the panel unit; the reinforced belt is lapped with the geogrid at the outer soil filling part of the right edge of the panel unit, and the lapping length E is fastened by m (m is more than or equal to 1) nylon ties.
Further: the size of the vertical rectangular hole is not smaller than the cross section of the reinforced belt, so that the reinforced belt can easily pass through the vertical rectangular hole; the outlet of the vertical rectangular hole is expanded into an arc hole, and the arc radius is larger than the allowable turning radius of the reinforced belt product; the vertical rectangular holes are longitudinally distributed at the interval A which is consistent with the corresponding interval of the geogrid used, and the distance B between the vertical rectangular holes and the two edges of the panel is (A-installation interval)/2.
Still further: the vertical positioning holes are distributed on two sides of the central axis of the vertical rectangular hole and are symmetrically arranged; the aperture meets the requirement of inserting the positioning steel bar and filling cement mortar.
Still further: mortar is used for connection between the panels for masonry; the panel unit height is the layering thickness of the reinforced retaining wall rolling.
As a requirement, the overlap length E of the reinforced belts and the geogrid and the number m of the nylon ties are determined according to design calculation and corresponding specification requirements.
As an extension scheme: the upper panel unit moves a distance delta on the basis of the lower panel unit to form a general inclined baffle wall surface, but delta is not more than 1/2 of the distance C from the central axis to the plate edge; the spacer bars connect only two panels of the panel unit at this time.
Advantageous effects
The retaining wall panel unit provided by the invention is composed of two panels with the same shape, pouring can be completed by only one set of die, die opening cost and manufacturing cost of the die are greatly reduced, and construction efficiency is also greatly improved, and compared with the construction efficiency of the conventional wrapped reinforced soil retaining wall combined panel unit, the construction efficiency of the retaining wall panel unit is at least 40%.
The reinforced belt penetrates through the panel unit to wrap part of the panel unit, then the reinforced belt is lapped with the geogrid, and the geogrid is reinforced by the nylon ribbon and connected with the reinforced belt, so that the panel unit and the geogrid are integrated, dependence of the traditional panel on factors such as grouting quality, upper pressing weight, friction between the geogrid and the panel and the like is reduced or even eliminated, the reliability of connection between the panel and the geogrid is greatly improved, and engineering failure caused by falling of the panel is avoided. Meanwhile, the construction difficulty and unreasonable stress state of the traditional panel geogrid turning at a large angle are avoided.
The invention ensures the continuous state that the connection part of the geogrid and the panel unit does not slip and fall off, ensures that the geogrid deforms little at the panel, has reliable force transmission, and has great significance on slope stabilization and deformation control; the reinforced belt is arranged in the panel unit and at the rear part, so that the protection against ultraviolet corrosion and physical damage of the reinforced belt is ensured, and meanwhile, the external appearance of the retaining wall is improved.
Drawings
FIG. 1 is a schematic view of a panel structure of a through-type reinforced retaining wall in accordance with embodiment 1;
FIG. 2 is a schematic sectional view of a combination of panels of a through-type reinforced retaining wall in accordance with example 1;
FIG. 3 is a schematic plan view showing the connection between the reinforced belts and the geogrid of the through reinforced retaining wall panel of example 1;
FIG. 4 is a schematic sectional view of a combination of panels of a through-type reinforced retaining wall in accordance with example 2;
In the figure: 1-a panel; 2-vertical rectangular holes; 3-arc holes; 4-a central axis; 5-vertical positioning holes; 6-a reinforced belt; 7-geogrid; 8-nylon ribbon; 9, positioning reinforcing steel bars; 10-a panel unit; 11-a panel foundation; a, vertical rectangular hole longitudinal spacing; b, spacing from the vertical rectangular hole to the edge of the panel; c, the distance from the central axis to the plate edge; d, filling soil and layering; e, overlap length; delta-panel movement pitch.
Detailed Description
The following description of the embodiments is provided to assist in understanding the principles of the present invention and its core ideas, but is not intended to limit the scope of the invention. It should be noted that modifications to the present invention without departing from the principles of the invention would be obvious to one of ordinary skill in this art and would fall within the scope of the invention as defined in the appended claims.
The design steps are as follows:
(1) Determining a geogrid according to a reinforced earth retaining wall design calculation method, selecting reinforced belts with the same specification as the geogrid, determining lap joint length, nylon ribbon binding points, filling layering height and panel strength grade;
(2) The panel length is determined according to construction convenience, the panel height is determined according to layered filling soil height, vertical rectangular hole positions and number are determined according to geogrid spacing, arc Kong Hudu is determined according to reasonable turning radius of the reinforced belt, and panel graphics are drawn.
The construction steps are as follows:
(1) Prefabricating the required number of panels for standby according to the panel design requirement;
(2) Implementing the panel foundation 11 at the design position, and rolling the inner side of the retaining wall to the top surface of the panel foundation 11 when the panel foundation 11 reaches the design strength;
(3) Paving a geogrid 7 and a reinforced belt 6 according to design requirements, and binding and setting the geogrid 7 and the reinforced belt 6 by using a nylon binding belt 8;
(4) Building a panel unit 10 on a panel foundation 11, and simultaneously, enabling a reinforcement belt 6 to penetrate through the vertical rectangular hole 2 and the arc-shaped hole 3 and extend out of the upper part of the panel unit 10;
(5) Positioning steel bars 9 are inserted into the vertical positioning holes 5, and mortar is poured into the gaps;
(6) Carrying out filling rolling according to the filling layering height D;
(7) And (3) filling soil and panel installation masonry of each layer are implemented according to the steps (3), (4) and (6), and the panel unit 10 needs to pass through the vertical positioning holes 5 until reaching the designed elevation position.
Example 1
Engineering profile: one project is in a sloped region, requiring a flat area to be built, thereby forming an upright filled retaining wall, 20m in height and 200m in length. A reinforced retaining wall is designed to meet engineering requirements.
Engineering design:
(1) Determining a geogrid 7 according to a reinforced earth retaining wall design calculation method, selecting reinforced belts 6 with the same specification as the geogrid, determining two binding points of a lap joint length E=1m and a nylon binding belt 8, and filling a soil layering height D=0.4m, and performing panel strength grade C30;
(2) A through-type reinforced retaining wall panel as shown in fig. 1 to 3 is employed, comprising: the section of the panel 1 is L-shaped as a whole, three vertical rectangular holes 2 which are longitudinally distributed are arranged in the middle, the upper parts of the vertical rectangular holes 2 are expanded to form arc-shaped holes 3, and the arc-shaped radius is 63mm; four vertical positioning holes 5, the aperture phi 25 and the positioning steel bar 9 phi 12 are symmetrically arranged on two sides and the central axis 4; one panel 1 is rotated 180 degrees clockwise and then is overlapped with the other panel 1, so that the two panels 1 are aligned at the central axis 4, and positioning steel bars 9 are inserted into the vertical positioning holes 5 to form a panel unit 10; the reinforced belt 6 passes through the vertical rectangular hole 2 from the lower part of the panel unit 10 and surrounds the right part of the panel unit 10; the reinforced belt 6 is overlapped with the geogrid 7 at the outer soil filling part of the right edge of the plate unit 10, and the reinforced belt 6 and the geogrid 7 are fastened by using 2 nylon ties 8 within the range of the overlap length E=1m; the panel 1 is made of C30 concrete prefabricated parts.
The construction steps are as follows:
(1) Prefabricating the required number of panels for standby according to the panel design requirement;
(2) Implementing the panel foundation 11 at the design position, and rolling the inner side of the retaining wall to the top surface of the panel foundation 11 when the panel foundation 11 reaches the design strength;
(3) Paving a geogrid 7 and a reinforced belt 6 according to design requirements, and binding and setting the geogrid 7 and the reinforced belt 6 by using a nylon binding belt 8;
(4) The panel unit 10 is built on the panel foundation 11, and the reinforced belt 6 passes through the vertical rectangular hole 2 and the arc hole 3 and extends out of the upper part of the panel unit 10;
(5) Positioning steel bars 9 are inserted into the vertical positioning holes 5, and mortar is poured into the gaps;
(6) Carrying out filling rolling according to the filling layering height D;
(7) And (3) filling soil and panel installation masonry of each layer are implemented according to the steps (3), (4) and (6), and the panel unit 10 needs to pass through the vertical positioning holes 5 until reaching the designed elevation position.
Example 2
Engineering profile: the same as in the embodiment 1, but the slope has a certain space for placing the slope, and the retaining wall with the slope inclined can be implemented.
Engineering design: except for the difference in inclined slope, each panel unit 10 in this embodiment is retracted into the retaining wall by δ (< C/2), as shown in fig. 4, and the spacer bar 9 passes through only two panels 1 constituting the panel unit 10.
The construction steps are as follows: referring to the procedure of example 1, each panel unit 10 is retracted into the retaining wall by δ (< C/2), thereby forming a small-step inclined retaining wall surface.
Claims (3)
1. The utility model provides a pass through reinforced earth barricade panel which characterized in that: the section of the panel (1) is L-shaped as a whole, three vertical rectangular holes (2) which are longitudinally distributed are arranged in the middle, and four vertical positioning holes (5) are arranged on two sides; the two mutually overlapped panels (1) are aligned at the central axis (4), positioning steel bars (9) are inserted into the positioning holes (5) to form a panel unit (10) consistent with the soil filling layering height (D); the reinforced belt (6) passes through the vertical rectangular hole (2) from the lower part of the panel unit (10) and surrounds the right part of the panel unit (10); the reinforced belt (6) is lapped with the geogrid (7) at the outer earth filling part of the right edge of the panel unit (10), and is fastened by a plurality of nylon ties (8) within the lapping length (E); the size of the vertical rectangular hole (2) is not smaller than the cross section size of the reinforced belt (6); the outlet of the vertical rectangular hole (2) is expanded into an arc-shaped hole (3), and the arc-shaped radius is larger than the allowable turning radius of the reinforced belt (6) product; the distance A between the adjacent vertical rectangular holes (2) is consistent with the adjacent distance of the used geogrid, and the distance B between the vertical rectangular holes (2) close to the edge of the panel (1) and the edge of the panel (1) is (the distance A between the adjacent vertical rectangular holes (2)/2); the vertical positioning holes (5) are distributed on two sides of the central axis (4) of the vertical rectangular hole (2) and are symmetrically arranged; the aperture is satisfied with the insertion of the positioning steel bar (9) and is filled with cement paste;
The construction steps are as follows:
1. prefabricating the required number of panels for standby according to the panel design requirement;
2. implementing the panel foundation (11) at the design position, and rolling the earth filled inside the retaining wall to the top surface of the panel foundation (11) when the panel foundation (11) reaches the design strength;
3. Paving a geogrid (7) and a reinforced belt (6) according to design requirements, and binding the geogrid (7) and the reinforced belt (6) by using a nylon binding belt (8) to be firm;
4. A panel unit (10) is built on a panel foundation (11), and a reinforcement belt (6) passes through the vertical rectangular hole (2) and the arc-shaped hole (3) and extends out of the upper part of the panel unit (10);
5. positioning steel bars (9) are inserted into the vertical positioning holes (5), and mortar is poured into the gaps;
6. Carrying out filling rolling according to the filling layering height D;
7. and (3) filling soil and panel mounting masonry of each layer are implemented according to the third step, the fourth step and the sixth step, and the panel unit (10) needs to pass through the vertical positioning holes (5) until reaching the designed elevation position during implementation.
2. The through-type reinforced retaining wall panel of claim 1, wherein: mortar is used for connection between the panels (1); the panel unit (10) is of a layered thickness of the reinforced retaining wall rolled.
3. The through-the-earth retaining wall panel of any one of claims 1-2, wherein: the upper panel unit (10) moves a distance delta on the basis of the lower panel unit (10) to form an integral inclined baffle wall surface, wherein delta is not more than 1/2 of the distance C from the central axis (4) to the plate edge; the spacer bars (9) are then connected to only two panels (1) of the plate unit (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210609462.8A CN114855870B (en) | 2022-05-31 | 2022-05-31 | Pass-through reinforced earth retaining wall panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210609462.8A CN114855870B (en) | 2022-05-31 | 2022-05-31 | Pass-through reinforced earth retaining wall panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114855870A CN114855870A (en) | 2022-08-05 |
| CN114855870B true CN114855870B (en) | 2024-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210609462.8A Active CN114855870B (en) | 2022-05-31 | 2022-05-31 | Pass-through reinforced earth retaining wall panel |
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| Country | Link |
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| CN (1) | CN114855870B (en) |
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|---|---|---|---|---|
| CN101363230A (en) * | 2008-09-10 | 2009-02-11 | 程卫国 | Slot type earth retaining block |
| CN101671985A (en) * | 2009-07-29 | 2010-03-17 | 中铁二院工程集团有限责任公司 | Quake-proof coverage-type reinforced fill structure |
| CN103882884A (en) * | 2014-02-20 | 2014-06-25 | 长沙理工大学 | Anchor rope geogrid retaining structure and method for constructing same |
| CN104790428A (en) * | 2015-04-08 | 2015-07-22 | 贵州建工集团第一建筑工程有限责任公司 | Ultrahigh integrated plastic-steel grid reinforced soil abutment retaining wall structure and construction method thereof |
| CN107503370A (en) * | 2017-08-14 | 2017-12-22 | 河海大学 | The high barricade of one planting sand well combined type reinforced earth and preparation method |
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| CN210315102U (en) * | 2019-06-26 | 2020-04-14 | 福建省龙祥建设集团有限公司 | Slope protection reinforced roadbed structure of composite ecological decoration panel |
| CN112240032A (en) * | 2020-11-17 | 2021-01-19 | 重庆永固建筑科技发展有限公司 | Combined panel of wrapped reinforced earth retaining wall |
| CN212656257U (en) * | 2020-05-22 | 2021-03-05 | 湖北铁甲建设工程有限公司 | Assembled retaining wall |
| CN214089966U (en) * | 2020-11-17 | 2021-08-31 | 重庆永固建筑科技发展有限公司 | Combined panel of wrapped reinforced earth retaining wall |
| CN219011291U (en) * | 2022-05-31 | 2023-05-12 | 叶晓明 | Pass-through reinforced earth retaining wall |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007004772A1 (en) * | 2005-07-04 | 2007-01-11 | Jeung Su Lee | A block for constructing reinforced earth wall |
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2022
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|---|---|---|---|---|
| CN101363230A (en) * | 2008-09-10 | 2009-02-11 | 程卫国 | Slot type earth retaining block |
| CN101671985A (en) * | 2009-07-29 | 2010-03-17 | 中铁二院工程集团有限责任公司 | Quake-proof coverage-type reinforced fill structure |
| CN103882884A (en) * | 2014-02-20 | 2014-06-25 | 长沙理工大学 | Anchor rope geogrid retaining structure and method for constructing same |
| CN104790428A (en) * | 2015-04-08 | 2015-07-22 | 贵州建工集团第一建筑工程有限责任公司 | Ultrahigh integrated plastic-steel grid reinforced soil abutment retaining wall structure and construction method thereof |
| CN107503370A (en) * | 2017-08-14 | 2017-12-22 | 河海大学 | The high barricade of one planting sand well combined type reinforced earth and preparation method |
| CN208763061U (en) * | 2018-09-12 | 2019-04-19 | 四川睿铁科技有限责任公司 | A kind of non-package reinforced earth bulkhead of railway building-brick type |
| CN210086291U (en) * | 2019-04-18 | 2020-02-18 | 中铁十局集团有限公司 | Reinforced earth retaining wall panel |
| CN210315102U (en) * | 2019-06-26 | 2020-04-14 | 福建省龙祥建设集团有限公司 | Slope protection reinforced roadbed structure of composite ecological decoration panel |
| CN212656257U (en) * | 2020-05-22 | 2021-03-05 | 湖北铁甲建设工程有限公司 | Assembled retaining wall |
| CN112240032A (en) * | 2020-11-17 | 2021-01-19 | 重庆永固建筑科技发展有限公司 | Combined panel of wrapped reinforced earth retaining wall |
| CN214089966U (en) * | 2020-11-17 | 2021-08-31 | 重庆永固建筑科技发展有限公司 | Combined panel of wrapped reinforced earth retaining wall |
| CN219011291U (en) * | 2022-05-31 | 2023-05-12 | 叶晓明 | Pass-through reinforced earth retaining wall |
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| Publication number | Publication date |
|---|---|
| CN114855870A (en) | 2022-08-05 |
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