CN114855870A - Through type reinforced earth retaining wall panel - Google Patents
Through type reinforced earth retaining wall panel Download PDFInfo
- Publication number
- CN114855870A CN114855870A CN202210609462.8A CN202210609462A CN114855870A CN 114855870 A CN114855870 A CN 114855870A CN 202210609462 A CN202210609462 A CN 202210609462A CN 114855870 A CN114855870 A CN 114855870A
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- Prior art keywords
- panel
- reinforced
- retaining wall
- panel unit
- vertical rectangular
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- Granted
Links
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 239000004677 Nylon Substances 0.000 claims abstract description 10
- 229920001778 nylon Polymers 0.000 claims abstract description 10
- 239000002689 soil Substances 0.000 claims abstract description 4
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 239000004568 cement Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 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
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
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 through type reinforced earth retaining wall panel, which is characterized in that the section of the panel is integrally L-shaped, the middle part of the panel is provided with vertical rectangular holes which are longitudinally distributed, and the two sides of the panel are provided with vertical positioning holes; aligning the two overlapped panels at the central axis, inserting positioning steel bars into the positioning holes to form a panel unit with the same filling layering height D; the reinforcing band penetrates through the rectangular hole from the lower part of the panel unit and surrounds and wraps the right part of the panel unit; the reinforced belts are lapped with the geogrids along the outer soil filling part on the right edge of the plate unit, and are fastened by nylon tie belts within the range of the lapping length E. The invention can ensure that the panel does not fall off, thereby reducing the cost of the die; the reinforced belt is wrapped in an arc shape, so that the influence of the turning of the reinforced belt on the warping of the building block during the face plate building is reduced, and the building speed and quality are improved.
Description
Technical Field
The invention belongs to the field of slope engineering, and particularly relates to a through reinforced earth retaining wall panel.
Background
The traditional reinforced retaining wall adopts a method of grouting geogrid between panels to connect the panels and the geogrid, and the panel structure is influenced by factors such as grouting quality, upper panel weight, panel surface friction and the like, so that the effective connection between the panels and the geogrid is difficult to ensure. In recent years, with the application of a large number of reinforced retaining walls, the panel often falls off to cause engineering failure, and the panel becomes a more common phenomenon of reinforced retaining wall engineering accidents.
Based on this, document CN214089966U provides a combined panel of a wrapped reinforced retaining wall, which ensures the effective connection of the panel and geogrid, and adopts a first retaining wall panel, a second retaining wall panel and a middle panel that are connected in an embedded manner, and the geogrid bypasses the middle panel to form a wrapped shape.
However, the combined panel of the wrapped reinforced retaining wall needs two sets of dies to prepare the panel component, and has the problems of large die sinking cost and high manufacturing cost.
Disclosure of Invention
The invention aims to provide a through type reinforced earth retaining wall panel, which can be prepared by only using one set of mould on the premise of ensuring the effective connection of the panel and a geogrid, and at least solves the problems of large 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 retaining wall panel which characterized in that: the cross 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 of the panel, and four vertical positioning holes are arranged on two sides of the panel; rotating one panel clockwise by 180 degrees and then lapping the panel with the other panel, so that the two panels are aligned at the central axis, and inserting positioning steel bars into the vertical positioning holes to form a panel unit with the same filling layering height D; the reinforcing band penetrates through the vertical rectangular hole from the lower part of the panel unit and surrounds and wraps the right part of the panel unit; the reinforcing band is overlapped with the geogrid at the right edge outer soil filling part of the panel unit, and m (m is more than or equal to 1) nylon binding bands are fastened within the overlapping length E range.
Further: the size of the vertical rectangular hole is not smaller than the size of the section of the reinforced belt, so that the vertical rectangular hole can be conveniently and easily penetrated; the outlet of the vertical rectangular hole is expanded into an arc-shaped hole, and the arc radius is larger than the allowable turning radius of a reinforced belt product; the longitudinal distribution distance A of the vertical rectangular holes is consistent with the corresponding distance of the used geogrids, and the distance B between the vertical rectangular holes and the two edges of the panel is (A-installation distance)/2.
And 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 insertion of the positioning steel bar and is filled with cement mortar.
Further: the connection between the panels is built by adopting mortar; the height of the panel unit is the layering thickness rolled by the reinforced retaining wall.
As a requirement, the overlap length E of the reinforced belts and the geogrid and the number m of nylon tie belts are determined according to design calculation and corresponding specification requirements.
As an extension: the upper panel unit is moved inwards by 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 panel edge; the spacer bars now connect only two panels of the panel unit.
Advantageous effects
The retaining wall panel unit provided by the invention is composed of two panels with the same shape, pouring can be completed only by one set of die, the die opening cost and the manufacturing cost of the die are greatly reduced, the construction efficiency is also greatly improved, and the construction efficiency can be improved by at least 40% compared with the construction efficiency of the existing wrapped reinforced retaining wall combined panel unit.
The reinforced belt penetrates through the panel unit to partially wrap the panel unit, then is in lap joint with the geogrid, and is used for reinforcing the connection between the geogrid and the reinforced belt, so that the panel unit and the geogrid are integrated, the dependence of the traditional panel on factors such as grouting quality, upper weight, friction between the geogrid and the panel and the like is reduced or even eliminated, the reliability of the connection between the panel and the geogrid is greatly improved, and the failure of engineering caused by the falling-off of the panel is avoided. Meanwhile, the construction difficulty and the unreasonable stress state of the wide-angle turning of the traditional panel geogrid are avoided.
The invention ensures the continuous state that the joint of the geogrid and the panel unit does not slide or fall off, ensures that the geogrid has small deformation and reliable force transmission at the panel and has great significance for slope stabilization and deformation control; the reinforced belt is arranged in the middle and at the rear part of the panel unit, so that the ultraviolet corrosion resistance and physical damage of the reinforced belt are guaranteed, and the external appearance of the retaining wall is improved.
Drawings
Fig. 1 is a schematic view of a through-type reinforced earth retaining wall panel structure in example 1;
FIG. 2 is a schematic sectional view showing the assembled structure of the through-type reinforced retaining wall panel according to example 1;
fig. 3 is a schematic plan view showing the connection of the pass-through reinforced earth retaining wall panel, the reinforcing strips and the geogrid in example 1;
FIG. 4 is a schematic sectional view of a combination of through-type reinforced retaining wall panels according to example 2;
in the figure: 1-a panel; 2-vertical rectangular hole; 3-arc hole; 4-central axis; 5, vertical positioning holes; 6-adding a rib belt; 7-geogrid; 8-nylon cable tie; 9, positioning the steel bars; 10-a panel unit; 11-panel foundation; a, longitudinal spacing of vertical rectangular holes; b, the distance from the vertical rectangular hole to the edge of the panel; c is the distance from the central axis to the plate edge; d, filling layering height; e, overlapping length; delta-panel shift pitch.
Detailed Description
The technical solutions are further described below with reference to the drawings and the specific embodiments, but the following embodiments are only used to help understanding the principle of the present invention and the core idea thereof, and do not limit the scope of the present invention. It should be noted that modifications to the invention as described herein, which do not depart from the principles of the invention, are intended to be within the scope of the claims which follow.
The design steps are as follows:
(1) determining a geogrid according to a design calculation method of a reinforced retaining wall, selecting reinforced belts with the same specification as the geogrid, determining the lap joint length, the nylon tie binding points, the filling layering height and the panel strength grade;
(2) determining the length of the panel according to construction convenience, determining the height of the panel according to the layered filling height, determining the positions and the number of vertical rectangular holes according to the distance of the geogrids, determining the radian of the arc-shaped holes according to the reasonable turning radius of the reinforced band, and drawing the graph of the panel.
The construction steps are as follows:
(1) prefabricating a required number of panels for standby use according to panel design requirements;
(2) implementing the panel foundation 11 at the design position, and filling 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) laying a geogrid 7 and a reinforced band 6 according to the design requirement, and binding the geogrid 7 and the reinforced band 6 firmly by using a nylon binding tape 8;
(4) building a panel unit 10 on a panel foundation 11, and simultaneously enabling a reinforcing bar 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) inserting positioning steel bars 9 into the vertical positioning holes 5, and pouring mortar into gaps;
(6) carrying out filling and rolling according to the filling layering height D;
(7) and (5) filling earth and installing and building the panel at each layer according to the steps (3), (4) and (6), wherein the panel unit 10 needs to penetrate through the vertical positioning hole 5 until reaching the designed elevation position.
Example 1
Engineering profile: a project is in a slope zone and a platform area is required to be built, thereby forming an upright filling retaining wall with the height of 20m and the length of 200 m. A reinforced retaining wall is designed to meet the engineering requirements.
Engineering design:
(1) determining a geogrid 7 according to a design calculation method of a reinforced retaining wall, selecting a reinforced band 6 with the same specification as the geogrid, determining the overlap length E of 1m, two binding points of a nylon binding band 8, the filling layering height D of 0.4m and the panel strength grade C30;
(2) the through-type reinforced earth retaining wall panel shown in fig. 1 to 3 is used, which comprises: 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 of the panel, the upper parts of the vertical rectangular holes 2 are expanded into arc-shaped holes 3, and the arc radius is 63 mm; four vertical positioning holes 5 with the diameter phi 25 and positioning steel bars 9 phi 12 are symmetrically arranged on two sides of the central axis 4; rotating one panel 1 clockwise by 180 degrees and then overlapping the other panel 1 to align the two panels 1 at a central axis 4, and inserting a positioning steel bar 9 into a vertical positioning hole 5 to form a panel unit 10; the reinforcing rib belt 6 penetrates through the vertical rectangular hole 2 from the lower part of the panel unit 10 and wraps the right part of the panel unit 10 in a surrounding mode; the reinforcing band 6 is lapped with the geogrid 7 at the right edge of the plate unit 10 along the outer soil filling part, and the reinforcing band 6 and the geogrid 7 are fastened by using 2 nylon tie tapes 8 within the lapping length E of 1 m; the panel 1 was fabricated from C30 concrete.
The construction steps are as follows:
(1) prefabricating a required number of panels for standby use according to panel design requirements;
(2) implementing the panel foundation 11 at the design position, and filling 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) laying a geogrid 7 and a reinforced band 6 according to the design requirement, and binding the geogrid 7 and the reinforced band 6 firmly by using a nylon binding tape 8;
(4) a panel unit 10 is built on a panel foundation 11, and simultaneously, a reinforcing bar belt 6 penetrates 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) inserting positioning steel bars 9 into the vertical positioning holes 5, and pouring mortar into gaps;
(6) carrying out filling and rolling according to the filling layering height D;
(7) and (5) filling earth and installing and building the panel at each layer according to the steps (3), (4) and (6), wherein the panel unit 10 needs to penetrate through the vertical positioning hole 5 until reaching the designed elevation position.
Example 2
Engineering profile: the same as the embodiment 1, but the slope surface has a certain slope space, and the retaining wall with the inclined slope surface can be implemented.
Engineering design: in addition to the difference of the inclined slope, in the embodiment 1, each panel unit 10 is retracted into the retaining wall by δ (< C/2) as shown in fig. 4, and the positioning steel bar 9 only passes through the two panels 1 forming the panel unit 10.
The construction steps are as follows: referring to the procedure of example 1, except that each panel unit 10 is retracted into the wall by δ (< C/2), thereby forming a small step inclined wall surface.
Claims (6)
1. The utility model provides a pass through reinforced earth retaining wall panel which characterized in that: the section of the panel (1) is integrally L-shaped, the middle part of the panel is provided with one or more vertical rectangular holes (2) which are longitudinally distributed, and two sides of the panel are provided with four vertical positioning holes (5); two overlapped panels (1) are aligned at the central axis (4), and positioning steel bars (9) are inserted into the positioning holes (5) to form a panel unit (10) with the same filling layering height (D); the reinforcing rib belt (6) penetrates through the vertical rectangular hole (2) from the lower part of the panel unit (10) and surrounds and wraps the right part of the panel unit (10); the reinforcing band (6) is overlapped with the geogrid (7) along the outer soil filling part at the right edge of the panel unit (10), and is fastened by a plurality of nylon tie bands (8) within the overlapping length (E).
2. The pass-through reinforced earth retaining wall panel of claim 1, wherein: the size of the vertical rectangular hole (2) is not smaller than the size of the section of the reinforced belt (6); the outlet of the vertical rectangular hole (2) is expanded into an arc-shaped hole (3), and the arc radius is larger than the turning radius allowed by the product of the reinforced belt (6).
3. The pass-through reinforced earth retaining wall panel of claim 2, wherein: the longitudinal distribution distance A of the vertical rectangular holes (2) is consistent with the corresponding distance of the used geogrids, and the distance B from the vertical rectangular holes to the two sides of the panel (1) is [ A-installation distance ]/2.
4. The pass-through reinforced earth retaining wall panel of claim 1, wherein: 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 meets the insertion of the positioning steel bar (9), and the cement paste is filled in.
5. The pass-through reinforced earth retaining wall panel of claim 1, wherein: the panels (1) are connected and built by mortar; the height of the panel unit (10) is the layering thickness of the reinforced retaining wall.
6. The pass-through reinforced retaining wall panel of any one of claims 1 to 5, wherein: the upper panel unit (10) moves inwards by a distance delta on the basis of the lower panel unit (10) to form an integral inclined wall surface, and delta is not more than 1/2 of the distance C from the central axis (4) to the panel edge; the positioning bars (9) are now only connected to the 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 true CN114855870A (en) | 2022-08-05 |
| CN114855870B CN114855870B (en) | 2024-05-07 |
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| CN202210609462.8A Active CN114855870B (en) | 2022-05-31 | 2022-05-31 | Pass-through reinforced earth retaining wall panel |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070003381A1 (en) * | 2005-07-04 | 2007-01-04 | Lee Jeung S | Block for constructing reinforced earth wall |
| 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 |
| 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 |
-
2022
- 2022-05-31 CN CN202210609462.8A patent/CN114855870B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070003381A1 (en) * | 2005-07-04 | 2007-01-04 | Lee Jeung S | Block for constructing reinforced earth wall |
| 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 |
|---|---|
| CN114855870B (en) | 2024-05-07 |
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