CN104746497A - Three-directional grille - Google Patents
Three-directional grille Download PDFInfo
- Publication number
- CN104746497A CN104746497A CN201310750408.6A CN201310750408A CN104746497A CN 104746497 A CN104746497 A CN 104746497A CN 201310750408 A CN201310750408 A CN 201310750408A CN 104746497 A CN104746497 A CN 104746497A
- Authority
- CN
- China
- Prior art keywords
- rib
- node
- thickness
- circumferential
- dimensional grid
- 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.)
- Granted
Links
- 230000007704 transition Effects 0.000 claims description 33
- 238000002955 isolation Methods 0.000 claims description 30
- 230000002093 peripheral effect Effects 0.000 abstract 7
- 238000012856 packing Methods 0.000 abstract 2
- 239000000945 filler Substances 0.000 description 17
- 239000000463 material Substances 0.000 description 8
- 239000002689 soil Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 208000035859 Drug effect increased Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/005—Soil-conditioning by mixing with fibrous materials, filaments, open mesh or the like
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
Abstract
The invention provides a three-directional grille. The three-directional grille comprises a plurality of nodes and a plurality of ribs, and the nodes and the ribs are connected to form a plurality of hexagonal units. Each hexagonal unit comprises six peripheral nodes, six peripheral ribs and a center node, wherein the six peripheral nodes are sequentially connected through the six peripheral ribs to form a hexagon, the center node is positioned in the center of the hexagon and connected with each peripheral node through one radial rib, and the peripheral nodes and the center node are identical in thickness and shape and thicker than the peripheral ribs and the radial ribs. The three-directional grille has the advantages that frictional resistance between the grille and a packing is increased, and shear resistance of the grille to the packing is increased.
Description
Technical field
The present invention relates to a kind of netted plastic stretching structure, in particular to a kind of three-dimensional grid.
Background technology
In civil engineering, grid or ground grid as reinforcement or reinforcement material or grid or ground grid as protection and isolated material in construction work.
The plastic net structural meterials be applied in the world as geo-grid reinforcement material in civil engineering construction has multiple now, such as, by the Web materials of extrusioning thermoplastic plastic's straight forming, general tensile strength is lower, and elongation rate is comparatively large, is difficult to meet engineering demand; Plastic plate is through going out the hole of the square of whole row or rectangle, the shape in its hole can be various ways, as circular, oval, square, rectangle etc., through longitudinal, cross directional stretch, thus obtain stretching Web materials that is square, rectangular opening shape, this material is provided with good integrity, intensity is high and the effect that elongation rate is low, meets the requirement of engineering to bulk strength largely; But, find in engineer applied, actual loading is often just in length and breadth to exerting pressure, and all kinds of Web materials described above often can only provide reinforcement and the support of both direction in length and breadth, great weakness will be shown for the support coming from oblique load, they must be used for transmitting and dispersion load, so node is also easy to be destroyed by the right angle shearing resistance of node.
, at least there is following problem in current stretching mesh material: the node of grid is easily destroyed, thus cause the tangential force of the not resistance to soil layer of grid.
Summary of the invention
The invention provides a kind of three-dimensional grid, easily suffer to destroy with the node solving existing grid, the problem of the tangential force of not resistance to soil layer.
For this reason, the present invention proposes a kind of three-dimensional grid, and described three-dimensional grid comprises: multiple node and multiple rib,
Described node and described rib are connected to form multiple hexagonal cells,
Each hexagonal cells comprises: six circumferential nodes, coupled together by described six circumferential nodes and form orthohexagonal six circumferential ribs and be positioned at the Centroid at described regular hexagon center successively, and described Centroid connects each described circumferential node respectively by a radial ribs;
Described circumferential node is identical with shape with the thickness of described Centroid, and the thickness of described circumferential node and described Centroid is all greater than described circumferential rib, and the thickness of described circumferential node and described Centroid is all greater than described radial ribs.
Further, described multiple rib is connected to form the straight line in three directions, and the straight line in first direction is the length direction of parallel described three-dimensional grid, and the straight line in the straight line in described second direction and the 3rd direction is 60 degree of angles with described first direction respectively.
Further, the thickness of the rib in described first direction is less than the thickness of the rib in second direction and the rib in the 3rd direction.
Further, the rib in described second direction and the rib in the 3rd direction are distortion.
Further, the rib in described first direction is straight, the end face of each node higher than the peak of the end face of each rib, the minimum point of the bottom surface lower than each rib of the bottom surface of each node.
Further, described in the Thickness Ratio of described node, the thickness of circumferential rib is large, the rib rib thickness proportion in described node and described first direction is 8:2.5 to 8:3.5, the thickness proportion of the rib in node and described second direction is 1.7:1 to 2.3:1, and the thickness proportion of the rib in described node and described 3rd direction is 1.7:1 to 2.3:1.
Further, each described node is hexagon, in each hexagonal cells, and the ratio 1.5:1 to 2:1 of the gross area of described node and the gross area of described rib.
Further, the isolation transition region that each described rib and each described node intersection have a thickness to increase, each described isolation transition region is fan-shaped, and described isolation transition region keeps apart the connection of adjacent each described rib, and the thickness of described isolation transition region is greater than the thickness of each described rib.
Further, each described isolation transition region is not crossing with the isolation transition region of consecutive web end.
Further, adjacent each described isolation transition region intersects, but each described rib mutually disjoints.
Thickness due to each node is greater than the thickness of each rib, when grid is embedded in soil layer or soil, the thickness of each node makes not only to form the tension of horizontal direction or fixing structure between grid and filler, when filler has horizontal sliding to be inclined to, not only each rib produces planar friction power, and each node produces resistance and the planar friction power of vertical direction, thus the frictional resistance increased between grid and filler and resistance, offset grid is deviate from pulling capacity, make grid more difficult deviate from.
And then, the present invention does not have rib along the length direction (i.e. the width of grid) of vertical described three-dimensional grid, and the rib in first direction is being provided with along the length direction of described three-dimensional grid, such setting, be conducive to increasing the resistance on the width of grid or pulling force, thus the fixed effect increased on the width of grid, and the warpage that when preventing grid construction from laying, appearance is gone up along its length.
And then the rib in second and the 3rd direction is distortion, also significantly increases the frictional resistance between grid and filler, adds the anti-shearing force of grid to filler.
And then the isolation transition region that each rib and each node intersection have a thickness to increase, isolation transition region keeps apart the connection of adjacent each described rib, thus provides the guarantee in making for the increase of the thickness of each node.
Accompanying drawing explanation
Fig. 1 is the structural representation of the three-dimensional grid of the embodiment of the present invention.
Drawing reference numeral illustrates:
The 11 circumferential node 12 circumferential node 14 of the circumferential node 13 circumferential node 16 of circumferential node 15 circumferential node 17 Centroid 111 isolates the rib that transition region 112 isolates rib 23 the 3rd direction in rib 22 second directions in transition region 21 first directions
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and the present invention is described.
As shown in Figure 1, the three-dimensional grid according to the embodiment of the present invention comprises: multiple node and multiple rib,
Described node and described rib are connected to form multiple hexagonal cells,
Each hexagonal cells comprises: six circumferential nodes, coupled together by described six circumferential nodes and form orthohexagonal six circumferential ribs and be positioned at the Centroid at described regular hexagon center successively, and described Centroid connects each described circumferential node respectively by a radial ribs;
Six circumferential nodes are respectively circumferential node 11, circumferential node 12, circumferential node 13, circumferential node 14, circumferential node 15 and circumferential node 16, these six circumferential nodes couple together formation regular hexagon, and Centroid 17 connects each described circumferential node respectively by a radial ribs;
Each circumferential node is identical with shape with the thickness of described Centroid 17, and the thickness of described circumferential node and described Centroid is all greater than described circumferential rib, and the thickness of described circumferential node and described Centroid is all greater than described radial ribs.
Thickness due to each node is greater than the thickness of each rib, when grid is embedded in soil layer or soil, the thickness of each node makes not only to form the tension of horizontal direction or fixing structure between grid and filler, when filler has horizontal sliding to be inclined to, not only each rib produces planar friction power, and each node produces resistance and the planar friction power of vertical direction, thus the frictional resistance increased between grid and filler and resistance, offset grid is deviate from pulling capacity, make grid more difficult deviate from.
Further, as shown in Figure 1, the three-dimensional grid of the embodiment of the present invention forms the rib in three directions, namely described multiple rib is connected to form the straight line in three directions, the straight line in first direction is the length direction of parallel described three-dimensional grid, the i.e. length direction of the parallel described three-dimensional grid of the rib 21 in first direction, straight line and described first direction in described second and the 3rd direction are 60 degree of angles, the rib 23 in the rib 22 in second direction and the 3rd direction respectively with the rib 21 in first direction in 60 degree of angles.
The position of rib of the present invention and prior art, on the length direction or width of three-dimensional grid, have obviously difference.Prior art is provided with rib at the width of three-dimensional grid, and the present invention does not arrange rib at the width of three-dimensional grid, but arranges rib on the length direction of three-dimensional grid.The length direction of three-dimensional grid is generally operating direction, or the expection longitudinal direction in experiment, work.The width of three-dimensional grid is generally horizontal direction, or the expection horizontal direction in experiment, work, is presented as TD direction in Fig. 1.This set of the present invention, make grid can bear larger longitudinal stretching, or the pulling force that can produce on larger length direction, needs on length direction can be adapted to like this and bear the work-yard of larger pulling force, can reasonable distribution all directions stressed, further, because generally rolling along its length when grid is laid, this structure can prevent grid from occurring the warpage gone up along its length when constructing and laying.
Further, the thickness of the rib 21 in described first direction is less than the thickness of the rib 22 in second direction and the rib 23 in the 3rd direction, and the rib 22 in second direction can be identical with the thickness of the rib 23 in the 3rd direction.Because the rib on three directions at least also exists two kinds of different thickness, make the rib on three directions define rolling three-dimensional tension rib network, increase the frictional resistance between grid and filler and resistance.
Further, what the rib 23 in the rib 22 in described second direction and the 3rd direction was distortion, add the contact area between rib and filler on the one hand, increase the frictional resistance between grid and filler and resistance, on the other hand, also reduce the moment of torsion between rib and filler, make grid more firm, be not easily pulled off or twist off.
Further, the rib 21 in described first direction is straight, like this, is convenient to make.
Further, the end face of each node higher than the peak of the end face of each rib, the minimum point of the bottom surface lower than each rib of the bottom surface of each node, that is, from top, each node protrudes from each rib, and from bottom, each node also protrudes from each rib, like this, from top and orientation, two, bottom, the frictional resistance between grid and filler can be added, realizes dual resistant slide.
Further, described in the Thickness Ratio of described node, the thickness of circumferential rib is large.The rib rib thickness proportion in described node and described first direction is 8:2.5 to 8:3.5, such as, be 8:3, and the thickness proportion of the rib in node and second direction is 1.7:1 to 2.3:1, such as, be 2:1.The thickness proportion of the rib in described node and described 3rd direction is 1.7:1 to 2.3:1, such as, be 2:1.Such proportional numerical value envoy puts and obviously gives prominence to than circumferential rib, significantly can strengthen node to the resistance of filler or fixation.
Further, each described node is hexagon, and in each hexagonal cells, the ratio 1.5:1 to 2:1 of the gross area of described node and the gross area of described rib is such as 1.7:1, and this makes node play comparatively outstanding effect to the stressed of grid entirety.
Further, the isolation transition region that each described rib and each described node intersection have a thickness to increase, each described isolation transition region is such as fan-shaped, and described isolation transition region keeps apart the connection of adjacent each described rib, and the thickness of described isolation transition region is greater than the thickness of each described rib.Such as, the isolation transition region 112 that circumference node 11 and rib 22 intersection in second direction have a thickness to increase, the isolation transition region 111 that circumference node 11 and rib 23 intersection in the 3rd direction have a thickness to increase, at isolation transition region 111 and isolation transition region 112 place, thickness increases suddenly, and the thickness of each isolation transition region is all greater than the thickness of each rib.In the present invention, each rib is the stretched portion belonging to grid, and node is the comparatively small part that do not stretch or relatively stretch belonging to grid, and in each described rib and each described node intersection, namely stretched portion and non-stretched portion are formed and isolate transition region.Isolation transition region of the present invention ensure that the stretching of rib, also ensure that not stretching or few stretching and the thickness of node of node simultaneously, the part having coordinated this stretching and the relation not needing to stretch or lack between the part that stretches.
Further, each described isolation transition region is not crossing with the isolation transition region of consecutive web end.Like this, can not be stretched by Controlling vertex preferably.Further, adjacent each described isolation transition region intersects, but each described rib mutually disjoints.As long as consecutive web is non-intersect, each node would not be stretched, and like this, can ensure that rib has enough stretchings.
The present invention can utilize the preparation method of existing two-way grille, first longitudinal rear cross directional stretch, by adjustment stretching ratio and technological temperature, Nodes is not stretched or different from rib level of stretch, the rib in the rib in second direction and the 3rd direction obtains when longitudinal stretching stretching for the first time, in cross directional stretch process subsequently, the rib (also referred to as oblique rib) in the rib in second direction and the 3rd direction obtains second time and stretches.In twice drawing process, the rib in second direction is all different from draw direction with the length direction of the rib in the 3rd direction, and makes the rib in the rib in second direction and the 3rd direction occur twisted phenomena, thus obtains three-dimensional grid of the present invention.
The distortion of rib of the present invention, the sudden change of node thickness and be not stretched or stretch less, the setting of isolation transition region, all can improve the stress performance of lattice.In the engineering practice of reinforced earth, can make to be formed between grid and filler to be similar to three-dimensional structure, when filler has slippage to be inclined to, not only produce planar friction power, and produce the resistance of vertical direction, thus increase the frictional resistance between grid and filler, offset the pulling capacity that grid is deviate from, make grid more difficult deviate from, thus improve the overall stressed effect of reinforced earth, improve stability.
The foregoing is only the schematic detailed description of the invention of the present invention, and be not used to limit scope of the present invention.For each ingredient of the present invention can mutually combine under the condition of not conflicting, any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present invention and principle and amendment, all should belong to the scope of protection of the invention.
Claims (10)
1. a three-dimensional grid, is characterized in that, described three-dimensional grid comprises: multiple node and multiple rib,
Described node and described rib are connected to form multiple hexagonal cells,
Each hexagonal cells comprises: six circumferential nodes, coupled together by described six circumferential nodes and form orthohexagonal six circumferential ribs and be positioned at the Centroid at described regular hexagon center successively, and described Centroid connects each described circumferential node respectively by a radial ribs;
Described circumferential node is identical with shape with the thickness of described Centroid, and the thickness of described circumferential node and described Centroid is all greater than described circumferential rib, and the thickness of described circumferential node and described Centroid is all greater than described radial ribs.
2. three-dimensional grid as claimed in claim 1, it is characterized in that, described multiple rib is connected to form the straight line in three directions, the straight line in first direction is the length direction of parallel described three-dimensional grid, and the straight line in the straight line in described second direction and the 3rd direction is 60 degree of angles with described first direction respectively.
3. three-dimensional grid as claimed in claim 2, it is characterized in that, the thickness of the rib in described first direction is less than the thickness of the rib in second direction and the rib in the 3rd direction.
4. three-dimensional grid as claimed in claim 3, is characterized in that, the rib in the rib in described second direction and the 3rd direction is distortion.
5. three-dimensional grid as claimed in claim 4, it is characterized in that, the rib in described first direction is straight, the end face of each node higher than the peak of the end face of each rib, the minimum point of the bottom surface lower than each rib of the bottom surface of each node.
6. three-dimensional grid as claimed in claim 1, it is characterized in that, each described node is hexagon, and in each hexagonal cells, the ratio of the gross area of described node and the gross area of described rib is 1.5:1 to 2:1.
7. three-dimensional grid as claimed in claim 1, it is characterized in that, described in the Thickness Ratio of described node, the thickness of circumferential rib is large, the rib rib thickness proportion in described node and described first direction is 8:2.5 to 8:3.5, the thickness proportion of the rib in described node and described second direction is 1.7:1 to 2.3:1, and the thickness proportion of the rib in described node and described 3rd direction is 1.7:1 to 2.3:1.
8. the three-dimensional grid according to any one of claim 1 to 7, it is characterized in that, the isolation transition region that each described rib and each described node intersection have a thickness to increase, each described isolation transition region is fan-shaped, described isolation transition region keeps apart the connection of adjacent each described rib, and the thickness of described isolation transition region is greater than the thickness of each described rib.
9. three-dimensional grid as claimed in claim 8, it is characterized in that, each described isolation transition region is not crossing with the isolation transition region of consecutive web end.
10. three-dimensional grid as claimed in claim 8, is characterized in that, adjacent each described isolation transition region intersects, but each described rib mutually disjoints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750408.6A CN104746497B (en) | 2013-12-31 | 2013-12-31 | Three-dimensional grid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750408.6A CN104746497B (en) | 2013-12-31 | 2013-12-31 | Three-dimensional grid |
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| CN104746497A true CN104746497A (en) | 2015-07-01 |
| CN104746497B CN104746497B (en) | 2018-11-06 |
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|---|---|---|---|
| CN201310750408.6A Active CN104746497B (en) | 2013-12-31 | 2013-12-31 | Three-dimensional grid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106320602A (en) * | 2016-10-17 | 2017-01-11 | 东南大学 | Reinforced type polygonal grid structure |
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2013
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| 董彦莉: "土工格栅加筋砂土的特性研究及加筋垫层的承载力计算", 《中国博士学位论文全文数据库.工程科技II辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106320602A (en) * | 2016-10-17 | 2017-01-11 | 东南大学 | Reinforced type polygonal grid structure |
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| Publication number | Publication date |
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| CN104746497B (en) | 2018-11-06 |
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Denomination of invention: Three-directional grille Effective date of registration: 20200428 Granted publication date: 20181106 Pledgee: Bank of Tai'an Limited by Share Ltd. Pledgor: TAIAN MODERN PLASTIC Co.,Ltd. Registration number: Y2020980001866 |
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Denomination of invention: Three-way grille Effective date of registration: 20230228 Granted publication date: 20181106 Pledgee: Taixi sub branch of Taian Bank Co.,Ltd. Pledgor: TAIAN MODERN PLASTIC Co.,Ltd. Registration number: Y2023980033684 |
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