CN216275596U - Interlocking grouting type composite geogrid - Google Patents
Interlocking grouting type composite geogrid Download PDFInfo
- Publication number
- CN216275596U CN216275596U CN202123018887.1U CN202123018887U CN216275596U CN 216275596 U CN216275596 U CN 216275596U CN 202123018887 U CN202123018887 U CN 202123018887U CN 216275596 U CN216275596 U CN 216275596U
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- geogrid
- layer
- conical
- screw
- conical screw
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- 239000002131 composite material Substances 0.000 title claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 10
- 239000004033 plastic Substances 0.000 claims abstract description 10
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 6
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 6
- 238000007569 slipcasting Methods 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 15
- 238000009434 installation Methods 0.000 abstract description 5
- 230000002787 reinforcement Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 28
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to an interlocking grouting type composite geogrid which comprises an upper geogrid layer, a middle geomembrane layer, a lower geogrid layer, a conical screw, a screw cap and sawteeth, wherein the upper geogrid layer is provided with a plurality of upper holes; the upper geogrid is a two-way stretching plastic geogrid, the middle geomembrane is an HDPE (high-density polyethylene) geomembrane, the lower geogrid is a steel-plastic geogrid, the conical screw is of a cylindrical structure with threads at one end and a conical head at the other end, and the screw cap is matched with one end of the conical screw with the threads; the utility model has convenient installation and simple structure, can effectively stabilize the soil body through grouting action and interlocking action, greatly improves the reinforcement action on the soil body, and has great popularization and application values.
Description
Technical Field
The utility model belongs to the field of geotechnical engineering reinforcement, and particularly relates to an interlocking grouting type composite geogrid.
Background
At present, the existing geogrid is usually a single-layer plane net-shaped structure consisting of a transverse grid and a longitudinal grid, and although the geogrid can play a certain role in reinforcing soil engineering, the reinforcing performance is limited when the geogrid is used, particularly in an area with a poor geological environment, the existing geogrid cannot be efficiently and stably connected with a soil body to be reinforced, and cannot realize cooperative stress; when the roadbed or the dam is subjected to a large external load, the soil body is transversely extruded and diffused outwards while being settled downwards, so that the bearing capacity of the soil body is greatly reduced, and the stability of the soil body is seriously affected.
Disclosure of Invention
In order to solve the problems, the utility model provides an interlocking grouting type composite geogrid, which effectively solves the problem that the existing geogrid in a region with a poor geological environment cannot effectively play a role in reinforcing.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides an interlocking slip casting formula composite geogrid comprises upper geogrid, middle level geomembrane, lower floor's geogrid, conical screw, nut, sawtooth, its characterized in that: the upper-layer geogrid adopts a two-way stretching plastic geogrid, the middle-layer geomembrane adopts an HDPE geomembrane, and the lower-layer geogrid adopts a steel-plastic geogrid; the conical screw is of a cylindrical structure with threads at one end and a conical head at the other end, and the diameter of the bottom surface of the conical head is 1-2 cm larger than that of the rod body of the conical screw; the inner diameter of the nut is matched with one end of the conical screw rod with threads, and the outer diameter of the nut is 1-2 cm larger than the diameter of the circular through hole of the upper-layer geogrid and the diameter of the circular through hole of the lower-layer geogrid.
Preferably, the bottom of the lower geogrid is provided with a row of saw teeth, and the saw teeth and the lower geogrid are of an integrated structure.
Preferably, the lap joints of the rib belts of the upper-layer geogrid and the lower-layer geogrid are provided with circular through holes which correspond in position and are the same in size specification, and the diameter of each circular through hole is 0.2-0.8 cm larger than that of the rod body of the conical screw.
Preferably, a grouting pipe is arranged at the center of the inner part of the conical screw, and the grouting pipe at the conical head is in a fork shape.
Preferably, the conical screw and the screw cap are both made of alloy materials.
The utility model has the beneficial effects that: the utility model has simple structure, compact structure and convenient installation.
(1) The upper geogrid adopts the biaxial tension plastic geogrid, the material has great tensile strength in the longitudinal direction and the transverse direction, the lower geogrid adopts the steel-plastic geogrid, the material has the advantages of great strength, strong bearing capacity, corrosion resistance, aging resistance, great friction coefficient and the like, and the HDPE geomembrane additionally arranged between the upper and lower geogrids has very high seepage-proofing coefficient and very good chemical stability.
(2) The design of the conical screw, the saw teeth and the grouting pipe enables the geogrid to be more beneficial to anchoring in soil with poor geological environment conditions. Soil body accessible slip casting can suitably be consolidated, and geogrid also can make and form firm the connection between the soil body through the interlocking effect of slip casting effect and conical screw, sawtooth, forms atress in coordination when limiting the lateral displacement of the soil body, and it is very showing to the interlocking reinforcement effect of the soil body, has greatly satisfied the needs of multiple reinforcement engineering.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention.
FIG. 2 is a schematic view of a conical screw and nut configuration of the present invention.
Reference numerals
1 upper geogrid, 2 middle geomembrane, 3 lower geogrids, 4 conical screws, 401 threads, 402 conical heads, 403 grouting pipes, 5 screw caps and 6 sawteeth.
Detailed Description
The utility model is described in detail below with reference to the accompanying drawings:
as shown in fig. 1 and 2, an interlocking grouting type composite geogrid comprises an upper geogrid 1, a middle geomembrane 2, a lower geogrid 3, a conical screw rod 4, a nut 5 and sawteeth 6, and is characterized in that: the upper-layer geogrid 1 is a biaxially-oriented plastic geogrid, the middle-layer geomembrane 2 is an HDPE geomembrane, and the lower-layer geogrid 3 is a steel-plastic geogrid; the conical screw 4 is of a cylindrical structure with threads 401 at one end and a conical head 402 at the other end, and the diameter of the bottom surface of the conical head 402 is 1-2 cm larger than that of the rod body of the conical screw 4; the inner diameter of the screw cap 5 is matched with one end of the conical screw rod 4 with the threads 401, and the outer diameter of the screw cap 5 is 1-2 cm larger than the diameter of the circular through hole of the upper-layer geogrid 1 and the circular through hole of the lower-layer geogrid 3. The bottom of the lower-layer geogrid 3 is provided with a row of saw teeth 6, and the saw teeth 6 and the lower-layer geogrid 3 are of an integrated structure. The rib belt lap joints of the upper-layer geogrid 1 and the lower-layer geogrid 3 are provided with circular through holes which correspond in position and are the same in size specification, and the diameter of each circular through hole is 0.2-0.8 cm larger than that of the rod body of the conical screw rod 4. The inner center of the conical screw 4 is provided with a grouting pipe 403, and the grouting pipe 403 at the conical head 402 is arranged in a fork shape. The connecting device 4 and the screw cap 5 are both made of alloy materials.
The installation construction method of the utility model is as follows:
before construction, the middle-layer geomembrane 2 is firstly placed between the upper-layer geogrid 1 and the lower-layer geogrid 3, round through holes at lap joints of rib belts of the upper-layer geogrid 1 and the lower-layer geogrid 3 are aligned, the middle-layer geomembrane 2 at the round through hole position is punctured by using an iron cone or a tool knife, then one end of a thread 401 of the conical screw rod 4 sequentially penetrates through the round through hole of the lower-layer geogrid 3, the middle-layer geomembrane 2 and the round through hole of the upper-layer geogrid 1, and finally the nut 5 is installed at the top thread 401 position of the conical screw rod 4, so that the upper-layer geogrid 1, the lower-layer geogrid 2, the middle-layer geomembrane 3, the conical screw rod 4 and the nut 5 are connected and stably integrated into a structure, and installation is finished.
During construction, one end of the lower geogrid 3 with the saw teeth 6 faces the soil body, the lower geogrid is placed in a soil body area to be reinforced, the upper geogrid 1 is tapped by a tool hammer, so that the conical head 402 of the conical screw 4 and the saw teeth 6 of the lower geogrid 3 are firmly embedded into the soil body, then grouting construction is performed on the grouting pipe 403 in the conical screw 4, and after slurry reaches the specified strength, installation construction is completed.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a compound geogrid of interlocking slip casting formula comprises upper geogrid (1), middle level geomembrane (2), lower floor geogrid (3), conical screw (4), nut (5), sawtooth (6), its characterized in that: the upper-layer geogrid (1) adopts a two-way stretching plastic geogrid, the middle-layer geomembrane (2) adopts an HDPE geomembrane, and the lower-layer geogrid (3) adopts a steel-plastic geogrid; the conical screw (4) is of a cylindrical structure with threads (401) at one end and a conical head (402) at the other end, and the diameter of the bottom surface of the conical head (402) is 1-2 cm larger than that of the rod body of the conical screw (4); the inner diameter of the screw cap (5) is matched with one end, provided with threads (401), of the conical screw (4), and the outer diameter of the screw cap (5) is 1-2 cm larger than the diameter of the circular through hole of the upper-layer geogrid (1) and the diameter of the circular through hole of the lower-layer geogrid (3).
2. A interlocking slip-casting composite geogrid according to claim 1, wherein: the lower-layer geogrid (3) is provided with a row of saw teeth (6) at the bottom, and the saw teeth (6) and the lower-layer geogrid (3) are of an integrated structure.
3. A interlocking slip-casting composite geogrid according to claim 1, wherein: the rib belt lap joints of the upper-layer geogrid (1) and the lower-layer geogrid (3) are provided with circular through holes which correspond in position and are the same in size specification, and the diameter of each circular through hole is 0.2-0.8 cm larger than that of the rod body of the conical screw (4).
4. A interlocking slip-casting composite geogrid according to claim 1, wherein: the grouting pipe (403) is arranged at the central position in the conical screw (4), and the grouting pipe (403) at the position of the conical head (402) is in a fork shape.
5. A interlocking slip-casting composite geogrid according to claim 1, wherein: the conical screw rod (4) and the screw cap (5) are both made of alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123018887.1U CN216275596U (en) | 2021-12-03 | 2021-12-03 | Interlocking grouting type composite geogrid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123018887.1U CN216275596U (en) | 2021-12-03 | 2021-12-03 | Interlocking grouting type composite geogrid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216275596U true CN216275596U (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123018887.1U Expired - Fee Related CN216275596U (en) | 2021-12-03 | 2021-12-03 | Interlocking grouting type composite geogrid |
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| CN (1) | CN216275596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116289369A (en) * | 2022-12-30 | 2023-06-23 | 温州大学 | Construction method for reinforcing geogrid by using construction waste recycled aggregate and geogrid |
-
2021
- 2021-12-03 CN CN202123018887.1U patent/CN216275596U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116289369A (en) * | 2022-12-30 | 2023-06-23 | 温州大学 | Construction method for reinforcing geogrid by using construction waste recycled aggregate and geogrid |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220412 |