CN218204535U - Double-layer retaining wall suitable for filling roadbed - Google Patents
Double-layer retaining wall suitable for filling roadbed Download PDFInfo
- Publication number
- CN218204535U CN218204535U CN202222310696.0U CN202222310696U CN218204535U CN 218204535 U CN218204535 U CN 218204535U CN 202222310696 U CN202222310696 U CN 202222310696U CN 218204535 U CN218204535 U CN 218204535U
- Authority
- CN
- China
- Prior art keywords
- wall
- layer
- filling
- steel frame
- retaining wall
- 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.)
- Active
Links
- 239000004567 concrete Substances 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 239000004746 geotextile Substances 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 25
- 239000000463 material Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 7
- 238000005056 compaction Methods 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model relates to a retaining wall technical field specifically is a double-deck retaining wall suitable for fill road bed. The double-layer retaining wall comprises an outer layer wall and an inner layer wall, the outer layer wall comprises a plurality of concrete panels which are spliced transversely and longitudinally, and the outer layer wall is arranged on the foundation concrete; the inner wall comprises a steel frame, a geogrid and a filling layer, the geogrid is laid on the steel frame and stretched, and the filling layer is filled on the geogrid; the steel frame, the geotextile and the filling layer are arranged layer by layer; and a drainage layer is arranged between the outer wall and the inner wall. The method for constructing the soil concrete structure with the vertical wall surface has the characteristics of strong stability, convenience and quickness in installation, convenience in replacement and long service life.
Description
Technical Field
The utility model relates to a retaining wall technical field specifically is a double-deck retaining wall suitable for fill road bed.
Background
The retaining wall is widely applied to road and bridge engineering, building engineering, municipal engineering and mine engineering as a structure for supporting roadbed filling or hillside soil and preventing filling or mountain deformation instability. The reinforced earth retaining wall is a light supporting and retaining structure constructed by adopting a reinforced earth technology, and comprises a wall panel, filling, a rib belt or a geogrid and the like, wherein the horizontal thrust of the filling acting on the wall surface is balanced by mainly utilizing the friction force of the filling and the rib belt or the geogrid interface, and a complex is formed by combining the advantages of the geogrid in the aspect of shearing resistance, so that the overall mechanical property is improved, and the purpose of effectively resisting the pressure of the filling at the rear part of the retaining wall is achieved.
Application number 202122251210.6 provides a retaining wall, the same with prior art, adopts muscle area or geogrid to consolidate more, adopts the pendant to be connected with surface concrete panel, and along with highway operation time goes, there is the corrosion in the pendant, the scheduling problem drops, and the shingle nail can take place to throw off, the inefficacy phenomenon, leads to the road bed to take place the lateral deformation, and the road bed subsides the problem outstanding. In addition, the existing reinforced retaining wall panels are mostly tightly attached to a filling roadbed, so that the edge compaction degree of an embankment near the panels is difficult to guarantee, certain problems exist in construction quality, and the problem of roadbed settlement during operation is also obvious.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above problems, the present invention provides a double-layered retaining wall suitable for a roadbed for filling, which compensates the stability of filling by using the friction and the support resistance of a filling material and a steel material and a reinforcing material laid therebetween, and constructs a concrete structure having a vertical wall surface.
In order to achieve the above object, the utility model discloses a technical scheme specifically as follows:
the utility model provides a double-deck retaining wall suitable for fill road bed, double-deck retaining wall includes outer wall and inlayer wall, its characterized in that: the outer wall comprises a plurality of concrete panels 2 spliced transversely and longitudinally, and is arranged on the foundation concrete 1;
the inner wall comprises a steel frame 5, a geogrid 9 and a filling layer 11, wherein the geogrid 9 is laid on the steel frame 5 and extends and spreads, and the filling layer 11 is filled on the geogrid 9; the steel frame 5, the geotextile 8 and the filling layer 11 are arranged layer by layer;
a drainage layer 4 is arranged between the outer wall and the inner wall.
The concrete panel 2 adopts a pi-shaped structure, and connecting holes 201 are formed in two vertical plates of the pi-shaped structure.
Be connected with on the connecting hole 201 and add muscle area 3, and be located the muscle area 3 of connecting hole 201 position and be provided with sleeve pipe 301, and 3 ends of connecting band are fixed in the inner wall.
The drainage layer 4 is sand gravel filled between the outer wall and the inner wall.
The steel frame 5 is an L-shaped steel frame, geotechnical cloth 8 is fixed in the steel frame through a fixing pin 7, and a plurality of back ribs 6 are connected to the transverse and vertical plate surfaces of the steel frame 5.
The upper part of the geogrid 9 on the filling layer 11 is fixed through fixing nails 10.
The concrete panel 2 and the top of the drainage layer 4 are sealed by the wall top concrete 12.
The beneficial effects of the utility model are that: (1) By adopting the double-layer retaining wall structure, because a space is reserved between the outer wall and the inner wall during construction, the soil pressure generated by compression deformation in the compaction process of the embankment material can not act on the outer wall, and the post-construction wall surface is not easy to deform. And moreover, the embankment material can be fully compacted to the position near the wall surface, and the edge compaction degree of the embankment can be better guaranteed.
(2) The retaining wall adopts a double-layer wall structure, the wall material can be maintained or replaced, and the maintainability is excellent.
(3) The concrete panel is flexibly arranged and can be installed after the implementation of the fill embankment.
(4) The main structural components forming the wall body take a concrete panel and a high polymer material as main materials, and have obvious advantages in corrosion resistance and durability. In addition, the grid and the ribs are made of flexible materials, and have good bearing capacity and coordinated deformation capacity, so that the grid and the ribs also have excellent anti-seismic performance.
(5) The reinforced belts are arranged below the joints of the reinforced belts and the precast concrete panels so as to prevent the reinforced belts from loosening and losing efficacy after the filling is solidified and settled.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic diagram of a concrete panel construction;
FIG. 3 is a schematic view of a steel frame structure;
shown in the figure: the concrete floor comprises basic concrete 1, a concrete panel 2, connecting holes 201, a reinforced band 3, a sleeve 301, a drainage layer 4, a steel frame 5, a back rib 6, fixing pins 7, geotextile 8, geogrids 9, fixing nails 10, a filling layer 11 and wall top concrete 12.
Detailed Description
The technical scheme of the invention is further explained by the specific embodiment with the attached drawings:
example 1
The utility model provides a double-deck retaining wall suitable for fill road bed, double-deck retaining wall structure divide into outer wall and inlayer wall two parts, and outer wall comprises basic concrete 1, concrete panel 2 and wall crown concrete 12, and the inlayer wall comprises steel frame 5, geotechnological cloth 8, geogrid 9 and filling layer 11. A drainage layer 4 with drainage function is arranged between the outer wall and the inner wall.
The concrete panel 2 is constructed as shown in fig. 2, and adopts a stable pi-shaped structure. Connecting holes 201 are formed in the two vertical plates of the pi-shaped structure. The concrete panels 2 may be prefabricated at the factory and transported to the site for installation.
In order to make the connection of the inner and outer walls stable, a reinforcing band 3 is provided in the connection hole 201. The reinforcing band 3 is made of polyester strip geotextile, connects the outer wall and the inner wall, prevents the outer wall from popping up or turning over, and reinforces the inner wall. The reinforcing band 3 at the position of the connection holes 201 is provided with a sleeve 301 to prevent the reinforcing band 3 from being broken.
The steel frame 5 is structured as shown in fig. 3, and is of an L-shaped structure, and the geotextile 8 is wrapped on the L-shaped structure, and the geotextile 8 is fixed on the steel frame 5 by using the fixing pins 7. The geotextile 8 is wrapped in a U shape as shown in fig. 1. The geotextile 8 adopts permeable geotextile which can effectively intercept soil particles, fine sand, small stone materials and the like so as to keep the stability of the drainage engineering. The permeable geotextile also has good water guiding performance, and forms a drainage channel in the soil body to discharge redundant liquid in the roadbed structure.
Meanwhile, the two ends of the transverse and longitudinal surfaces of the steel frame 5 are connected through the back bars 6, so that the strength and the stability of the steel frame 5 are improved.
As shown in fig. 1, a geogrid 9 is laid on a steel frame 5, and the geogrid 9 is spread along one side of the steel frame 5 and fixed at the ends by fixing nails 10.
The geotextile 8 and the geogrid 9 of the steel frame 5 are filled with soil filling layers 11. And the inner wall is laid layer by layer.
In the inner wall and outer wall construction process, since a space is left between the outer wall and the inner wall at the time of construction, the space is used for providing the drainage layer 4. The drainage layer 4 is filled with sand gravel, and can effectively play a role in retaining wall drainage.
The concrete construction method is as follows:
(1) And (3) building a strip foundation or a gravity type foundation at the lower part of the retaining wall by adopting concrete, namely building the foundation concrete 1. And filling and rolling after finishing.
(2) The precast concrete panels are assembled and installed, and the horizontality, the gradient and the vertical keeping of the panels must be confirmed.
(3) Penetrate the connecting hole 201 on the concrete panel 2 with the reinforcement area 3 to arrange the reinforcement area 3 in lower floor's filled soil layer 11 top, guarantee that 3 directions of reinforcement area are perpendicular with concrete panel 2.
(4) And (5) assembling the steel frame 5, wrapping the geotextile 8 outside after the assembly, reserving the geotextile with the width of 0.6m from top to bottom, and temporarily fixing the geotextile by using the fixing pin 7. The steel frame 5 is provided so as to be spaced apart from the back surface of the concrete panel 2 by a predetermined distance, and is generally not less than 0.2m.
(5) And laying a first layer of geogrid 9 above the steel frame 5, and installing a back rib 6. In order to prevent the occurrence of unevenness and unevenness, the sheet should be laid with a proper tension to prevent the sheet from being loosened, and temporarily fixed with a fixing nail 10 to prevent the sheet from moving during rolling.
(6) And filling and rolling to form a filling layer 11. The fill should have a good gradation, rolled to the design compaction. In order to ensure the effectiveness of the geogrid 9 and the reinforced strip 3, the height of a single layer is controlled within 20-25cm after the subgrade is compacted.
(7) And (5) repeating the steps (3) to (6) until the roadbed is filled to the design height.
(8) And filling sand gravel between the concrete panel of the outer wall and the steel frame of the inner wall by adopting a special material scattering device to form a drainage layer 4. And (4) adopting a free falling body, and controlling the putting height of the sand gravel to be half of the filling height.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (7)
1. The utility model provides a double-deck retaining wall suitable for fill road bed, double-deck retaining wall includes outer wall and inlayer wall, its characterized in that: the outer wall comprises a plurality of concrete panels which are spliced transversely and longitudinally, and is arranged on the foundation concrete;
the inner wall comprises a steel frame, a geogrid and a filling layer, the geogrid is laid on the steel frame and extends and spreads, and the filling layer is filled on the geogrid; the steel frame, the geotextile and the filling layer are arranged layer by layer;
and a drainage layer is arranged between the outer wall and the inner wall.
2. A double retaining wall adapted for use in filling a roadbed according to claim 1, wherein: the concrete panel adopts pi type structure, all is provided with the connecting hole on two risers of pi type structure.
3. A double retaining wall adapted for use in filling a roadbed according to claim 2, wherein: the connecting holes are connected with reinforcing strips, sleeves are arranged on the reinforcing strips located at the positions of the connecting holes, and the ends of the connecting strips are fixed on the inner wall.
4. A double retaining wall adapted for use in filling a roadbed according to claim 1, wherein: the drainage layer is sand gravel filled between the outer wall and the inner wall.
5. A double retaining wall adapted for use in filling a roadbed according to claim 1, wherein: the steel frame is an L-shaped steel frame, geotechnical cloth is fixed in the steel frame through fixing pins, and a plurality of back ribs are connected to the horizontal and vertical plate surfaces of the steel frame.
6. A double retaining wall adapted for use in filling a roadbed according to claim 1, wherein: the upper part of the geogrid on the filling layer is fixed through fixing nails.
7. A double retaining wall adapted for use in filling a roadbed according to claim 1, wherein: and the concrete panel and the top of the drainage layer are sealed by wall top concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222310696.0U CN218204535U (en) | 2022-08-31 | 2022-08-31 | Double-layer retaining wall suitable for filling roadbed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222310696.0U CN218204535U (en) | 2022-08-31 | 2022-08-31 | Double-layer retaining wall suitable for filling roadbed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218204535U true CN218204535U (en) | 2023-01-03 |
Family
ID=84630491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222310696.0U Active CN218204535U (en) | 2022-08-31 | 2022-08-31 | Double-layer retaining wall suitable for filling roadbed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218204535U (en) |
-
2022
- 2022-08-31 CN CN202222310696.0U patent/CN218204535U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208981122U (en) | A kind of bridge platform back Foam lightweight soil roadbed backfill structure | |
| CN102966119B (en) | Geogrid reinforced wall and construction method thereof | |
| KR100971004B1 (en) | Reinforced earth retaining walls using a wall panel and a rigid wall structure | |
| CN105155558A (en) | Combined retaining structure and construction method thereof | |
| CN104846840B (en) | A kind of shallow embedding reinforcement of soft soil integrated pipe canal device and construction method | |
| CN113308953B (en) | Construction method for widening embankment by utilizing foam concrete of existing retaining wall | |
| CN109371989B (en) | A combined retaining structure suitable for slope stability support and its construction method | |
| CN107524159A (en) | A kind of hybrid reinforced soil retaining wall | |
| CN111455831A (en) | Ultra-high composite reinforced soil abutment combined with prestressed anchor cable and its construction method | |
| CN111005403A (en) | Assembled three-dimensional reinforced earth retaining wall and construction method thereof | |
| CN113802426A (en) | Method for treating recent road filling foundation by adopting rubble compaction reinforced cushion layer method | |
| CN107288120A (en) | A kind of stabilization by drainage structure of new and old roadbed in the firm splicing of watersplash | |
| CN110080282A (en) | A kind of self-anchored type band tooth grid reinforced retaining wall structure and its reinforcement means | |
| CN215976664U (en) | A rigid pile composite foundation treatment structure for a lower sleeping pipe gallery structure | |
| CN110306589A (en) | A method of forming a prefabricated reinforced soil retaining wall | |
| CN206157745U (en) | Gravelly soil is height embankment reinforced structure of filling for side slope based on anchor rope | |
| CN218204535U (en) | Double-layer retaining wall suitable for filling roadbed | |
| CN209722993U (en) | A kind of embankment side slope framework parts La Tuoding anchor slab supporting construction a little | |
| CN113308957B (en) | Construction method of retaining wall light soil wide-spliced embankment | |
| CN217923158U (en) | Corrugated steel box culvert structure | |
| CN115262625B (en) | Double-layer retaining wall suitable for filling roadbed | |
| CN210315650U (en) | Anchor rod reinforced composite retaining wall | |
| CN118958073B (en) | Reinforced soil roadbed beneficial to pipeline maintenance | |
| CN221052662U (en) | Multi-stage reinforced earth retaining wall with composite panel | |
| CN220908429U (en) | Novel bridge bench back backfill structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |