CN216428227U - Plastic geogrid and grid starting material - Google Patents
Plastic geogrid and grid starting material Download PDFInfo
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- CN216428227U CN216428227U CN202123162623.3U CN202123162623U CN216428227U CN 216428227 U CN216428227 U CN 216428227U CN 202123162623 U CN202123162623 U CN 202123162623U CN 216428227 U CN216428227 U CN 216428227U
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Abstract
The utility model relates to a plastic geogrid and a grid starting material, the plastic geogrid comprises a grid plate body with a plane net structure, the grid plate body comprises a plurality of grid ribs which are connected in a staggered manner, grid through holes are enclosed between the adjacent grid ribs, a plurality of drainage grooves are arranged on the upper surface and/or the lower surface of the grid plate body, the drainage grooves are long-strip-shaped sinking grooves, the grid starting material further comprises a raw material plate body, a plurality of raw material counter bores are formed in the upper surface and/or the lower surface of the raw material plate body, a plurality of long-strip-shaped raw material sinking grooves are formed in the upper surface and/or the lower surface of the raw material plate body, the raw material plate body forms the plastic geogrid after being stretched through uniaxial stretching, biaxial stretching or multiaxial stretching under the temperature condition of 80-400 ℃, the counter bores are stretched to form the grid through holes, and the grid ribs are stretched between the adjacent raw material counter bores, the raw material sink forms a drainage channel.
Description
Technical Field
The utility model relates to a geogrid field specifically indicates a plastics geogrid, grid start material.
Background
The plastic geogrid is formed by stretching a main raw material of high polymer such as polypropylene, high-density polyethylene and the like through an extrusion pore plate, or stretching an extrusion plastic plate after punching, or forming a two-dimensional latticed net material by welding extrusion stretching strips, is generally used for laying in soil, and forms an efficient stress transmitter through the engagement and interlocking action between the grid meshes and the soil body, so that local load can be quickly and effectively transmitted to the soil body with a large area, thereby achieving the purposes of reducing local damage stress and prolonging the service life of engineering.
The existing manufacturing technology of plastic geogrid is that plastic particles are added with certain additives, the plastic particles are extruded by an extruder, a three-roller calender is used for calendering and trimming, a punching machine is used for punching to manufacture a pore plate, and the plastic pore plate is manufactured by uniaxial stretching or biaxial stretching in a heating state. The one-time utilization rate of raw materials is low due to punching waste; when the plastic orifice plate with small cross section is manufactured, the punching needle of the punching machine is very easy to break, the production efficiency is low, and especially, the continuous and uninterrupted manufacturing of the orifice plate with the equivalent aperture of 3mm or less on a plastic plate with the thickness of 5.0mm in 24 hours is almost difficult to complete.
Therefore, the plastic hole plate with the equivalent aperture not larger than 3mm is manufactured continuously for several days on the plastic plate with the thickness not smaller than 5.0 mm; or continuously manufacturing the long-strip plastic pore plate with the width not greater than 3mm on the plastic plate with the thickness not less than 5.0mm for several days, which is a technical problem to be solved urgently by current plastic geogrid manufacturing enterprises.
Meanwhile, the water in the plastic geogrid filler reinforcement system is not easy to discharge, so that the filler is slowly cured.
Disclosure of Invention
The utility model discloses to prior art's not enough, provide a plastics geogrid, grid start material.
The utility model discloses a following technical scheme realizes, provides a plastics geogrid, including plane network structure's grid plate body, the grid plate body includes many staggered connection's grid rib, encloses into the grid through-hole between the adjacent grid rib, the upper surface and/or the lower surface of grid plate body are provided with a plurality of water drainage tank, water drainage tank is long banding heavy groove.
The grid plate body in this scheme is plane network structure, and the upper surface and/or the lower surface of grid plate body are provided with a plurality of water drainage tank, are convenient for discharge plastics geogrid and pack and add the moisture in the muscle system, and the fast curing packs, increases the bearing capacity who adds the muscle system, improves the life of engineering.
Preferably, the grid ribs comprise a plurality of transverse ribs and a plurality of longitudinal ribs, two ends of each longitudinal rib are fixed by the transverse ribs, the width of each longitudinal rib is gradually widened along the direction close to the transverse ribs, the joint parts of the longitudinal ribs and the transverse ribs are in an inward concave arc shape, the longitudinal ribs and the transverse ribs are adjacent to each other to form a long-strip-shaped through hole, the plane projection pattern of the long-strip-shaped through hole is in a linear shape, a fusiform shape, an oval shape or a runway shape and the combination of the linear shape, the shuttle-shaped through hole and the racetrack, and the drainage grooves are arranged on the upper surface and/or the lower surface of the transverse ribs and/or the longitudinal ribs.
In the scheme, the width of the longitudinal ribs is gradually widened along the direction close to the transverse ribs, so that the longitudinal tensile strength of the longitudinal ribs is improved, and the bearing capacity of the plastic geogrid in the longitudinal direction is improved. Meanwhile, as the drainage grooves are formed in the upper surface and/or the lower surface of the transverse ribs and/or the longitudinal ribs of the plastic geogrid, the water in the filler can be drained conveniently, the filler is cured quickly, and the bearing capacity of a reinforced system is further improved.
As optimization, the grid ribs comprise a plurality of transverse ribs and a plurality of longitudinal ribs, the joints of the transverse ribs and the longitudinal ribs are connection nodes, the width of each longitudinal rib and the width of each transverse rib are gradually widened along the direction close to the connection nodes at the two ends of the longitudinal rib respectively, the adjacent longitudinal ribs, the transverse ribs and the connection nodes form grid through holes, and the drainage grooves are formed in the upper surfaces and/or the lower surfaces of the transverse ribs and/or the longitudinal ribs.
In the scheme, the width of the longitudinal ribs and the width of the transverse ribs are gradually widened along the direction close to the connection nodes at the two ends of the longitudinal ribs and the width of the transverse ribs respectively, namely the width of the grid ribs close to the connection nodes is larger, so that the connection strength of the grid ribs and the connection nodes is improved, and the tensile strength of the longitudinal ribs and the transverse ribs is improved. Meanwhile, as the drainage grooves are formed in the upper surface and/or the lower surface of the transverse ribs and/or the longitudinal ribs of the plastic geogrid, the water in the filler can be drained conveniently, the filler is cured quickly, and the bearing capacity of a reinforced system is further improved.
As optimization, the grid ribs further comprise a plurality of oblique ribs, the width of each oblique rib gradually becomes wider along the direction close to two end points of the oblique rib, one end of each oblique rib is connected with the connecting node, the other end of each oblique rib is connected with the longitudinal rib, the transverse rib or the connecting node, the longitudinal rib, the transverse rib, the oblique rib and the connecting node are adjacent to each other to form a grid through hole, and the oblique ribs are twisted.
In the scheme, the grid through holes are provided with triangular through hole structures due to the arrangement of the oblique ribs, so that the stability of the plastic geogrid grid is enhanced. The tensile strength of the geogrid in other directions except the longitudinal direction and the transverse direction is improved, and meanwhile, the shearing resistance of the plastic geogrid is further improved due to the fact that the oblique ribs are arranged in a twisted mode.
As an optimization, the grid ribs further comprise a plurality of oblique ribs, the width of each oblique rib gradually becomes wider along the direction close to two end points of the oblique rib, one end of each oblique rib is connected with the longitudinal rib, the other end of each oblique rib is connected with the transverse rib, the longitudinal rib, the transverse rib, the oblique ribs and the connecting nodes form grid through holes, the adjacent oblique ribs also form the grid through holes, the adjacent oblique ribs and the longitudinal rib and/or the transverse rib form the grid through holes in a surrounding mode, and the oblique ribs are twisted.
In the scheme, the oblique ribs, the transverse ribs and the longitudinal ribs are connected into a triangular grid through hole structure, so that the stability of each bearing unit of the plastic geogrid is enhanced. The tensile strength of the plastic geogrid in other directions except the longitudinal direction and the transverse direction is improved, and meanwhile, the anti-shearing force of the plastic geogrid is further improved due to the fact that the oblique ribs are arranged in a twisted mode.
Preferably, at least one of the longitudinal edges of the plastic geogrid is provided with a whole continuous longitudinal rib. The width of the continuous longitudinal ribs is more than or equal to 3 mm.
In the scheme, at least one edge of the longitudinal edge of the plastic geogrid is provided with a whole continuous longitudinal rib, so that the longitudinal edge of the plastic geogrid is a continuous and smooth longitudinal rib and penetrates through the whole longitudinal length of the geogrid, and the edge is prevented from being broken. Meanwhile, when the two plastic geogrids are spliced in the width direction of the construction site, the transverse tensile strength of the spliced part can be improved, the overlapping width of the geogrids is reduced, the overlapping efficiency of the plastic geogrids is improved, and the cost of engineering projects is further reduced.
Preferably, the plastic geogrid is connected with one, two or more than two of geogrid, geotextile, geomembrane, geonet, plastic stretched wire mesh, drainage mesh, plastic blind ditch, polymer pore plate, metal wire mesh, three-dimensional drainage mesh pad, three-dimensional geogrid pad, guest grid mesh, three-dimensional geogrid pad, three-dimensional plastic wire mesh blanket pad or geogrid chamber in any combination manner to form the composite plastic geogrid, and the connection manner includes but is not limited to silk thread sewing, ultrasonic sewing, welding, splicing, bolt connection, fused plastic wire connection or injection molding connection and the combination thereof.
Each of the other geosynthetics in the present embodiment, which is compounded with the plastic geogrid, may be one layer, two layers or more, and two or more of the individual geosynthetics are adjacently stacked or alternately stacked and combined when combined with the plastic geogrid.
The bottom surface of the plastic geogrid is connected with the geomembrane, so that the anti-seepage function of the plastic geogrid can be increased; the bottom surface of the plastic geogrid is connected with geotextile, so that the reverse filtering function can be increased; the bottom surface of the plastic geogrid is connected with a three-dimensional geotechnical net pad which can keep water and soil loss and make grass seeds root and sprout to green the ecological environment; the bottom surface of the plastic geogrid is connected with the geocell, so that the lateral displacement of the filler is prevented, and the service life of the engineering is further prolonged.
The plastic geogrid is wrapped by HDPE plastic, can be made into a reinforced geomembrane and is used for engineering seepage prevention in regions with severe geological conditions; meanwhile, the reinforced HDPE geocell reinforcing rib can be used for manufacturing reinforced HDPE geocell, the HDPE composite geocell is manufactured by connecting the rib, and the mechanical property indexes of the rib and the node can be greatly improved.
Preferably, the drainage channels are arranged on the grid ribs in the transverse direction and/or the longitudinal direction.
The drainage channel in this scheme is along horizontal and/or vertical setting on the grid rib, can accelerate the discharge velocity of moisture in the filler, reaches the purpose that the rapid curing packed.
The grid starting material comprises a raw material plate body, wherein a plurality of raw material counter bores are formed in the upper surface and/or the lower surface of the raw material plate body, and a plurality of strip-shaped raw material settling grooves are formed in the upper surface and/or the lower surface of the raw material plate body.
Through hot pressing formation raw materials counter bore on the raw materials plate body, can avoid the production of punching grain waste material at the in-process of making the raw materials counter bore on the one hand, on the other hand plastics are very little at its heat altered shape temperature above hardness, it is very easy under the condition that does not increase punch press tonnage or need not punch a hole the process and make the bigger raw materials counter bore of sectional area very easily on the raw materials plate body, or incessant manufacturing equivalent aperture is not more than 3 mm's raw materials counter bore on the raw materials plate body, the raw materials counter bore is after tensile, the tensile attenuation of bottom is finally torn formation grid through-hole, the heavy groove of raw materials forms water drainage tank.
Preferably, the ratio of the thickness of the bottom of the raw material counter bore to the thickness of the raw material plate body is not more than 0.5.
The ratio of the thickness of the bottom of the raw material counter bore to the thickness of the raw material plate body in the scheme is generally not more than 0.5, and the thickness of the bottom of the raw material counter bore is not too large because the bottom of the raw material counter bore needs to be thinned and torn to become a through hole in the stretching process when the raw material counter bore is stretched.
The utility model has the advantages that: the utility model discloses a plastics geogrid, grid starting material sets up water drainage tank in the bottom surface of the horizontal rib or the rib of plastics geogrid, and the plastics geogrid of being convenient for discharge adds the moisture in the muscle system with the filler, and the fast curing packs, increases the bearing capacity who adds the muscle system, improves the life of engineering.
The utility model discloses a plastics geogrid is through the originated material of grid that will be provided with raw materials counter bore and raw materials heavy groove through uniaxial tension, biaxial tension or the orientation of multiaxis tension making. The raw material plate body of the starting material of the grating is manufactured above the thermal deformation temperature of the plastic, and the raw material counter bores are formed on the raw material plate body in a hot pressing mode, so that on one hand, the generation of punching waste can be avoided in the process of manufacturing the raw material counter bores, on the other hand, the hardness of the plastic plate above the thermal deformation temperature is small, the raw material counter bores are easily manufactured on the raw material plate body uninterruptedly, and the raw material counter bores with larger cross sections can be easily manufactured under the condition that the tonnage of a punch press is not increased or the punching process is not needed.
The hardness of the plastic plate is very high under the normal temperature condition, and in the prior art, when a punch with the equivalent aperture of 3mm punches the plastic plate with the equivalent aperture of 5.0mm, the punch is very easy to break. More than 100 punches are arranged in each pair of dies, once one punch is broken, the die needs to be stopped on the whole line, production is continued after the broken punch is replaced, and if the die is broken every 3 hours, the production cannot be normally carried out. For the biaxial stretching plastic geogrid, the same material, the same thickness, the same width and the same quantity of the raw material counter bores are used as the starting material of the geogrid, and under the same stretching condition, the smaller the equivalent aperture of the raw material counter bores is, the higher the longitudinal and transverse stretching strength of the plastic geogrid is. The production cost of the plastic geogrid is reduced by continuously manufacturing the raw material counter bore array grid starting material with smaller equivalent aperture.
Drawings
Fig. 1 is a schematic view of a plastic geogrid according to embodiment 1 of the present invention;
fig. 2 is a schematic view of a grating starting material of embodiment 1 of the present invention;
fig. 3 is a schematic view of a plastic geogrid according to embodiment 2 of the present invention;
fig. 4 is a schematic view of a grating starting material of embodiment 2 of the present invention;
fig. 5 is a schematic view of a plastic geogrid according to embodiment 3 of the present invention;
fig. 6 is a schematic view of a starting material of a grating according to embodiment 3 of the present invention;
fig. 7 is a schematic view of the plastic geogrid of embodiment 4 of the present invention;
fig. 8 is a schematic view of a grating starting material of embodiment 4 of the present invention;
shown in the figure:
1. raw material counter bore, 2, raw material heavy groove, 3, raw materials plate body, 4, horizontal rib, 5, vertical rib, 6, water drainage tank, 7, grid through-hole, 8, connected node, 9, slant rib.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
Example 1:
as shown in fig. 1-2, the utility model discloses a plastics geogrid, including plane network structure's grid plate body, the grid plate body includes many staggered connection's grid rib, encloses into grid through-hole 7 between the adjacent grid rib, the upper surface and/or the lower surface of grid plate body are provided with a plurality of water drainage tank 6, water drainage tank 6 is long banding heavy groove.
The two ends of the longitudinal ribs 5 are fixed by the transverse ribs 4, the width of the longitudinal ribs 5 gradually widens along the direction close to the transverse ribs 4, the joints of the longitudinal ribs 5 and the transverse ribs 4 are in an inward-concave arc shape, and the inward concave refers to that the edges of the joints of the longitudinal ribs and the transverse ribs are in a smooth transition arc shape.
The adjacent longitudinal ribs 5 and the transverse ribs 4 enclose a strip-shaped through hole 7, the plane projection of the strip-shaped through hole 7 is in a shape of a linear bar, a shuttle shape, an ellipse or a runway, and the combination of the linear bar, the linear bar refers to a slit hole with the length-width ratio of more than 5 times.
The drainage channels 6 are arranged on the grid ribs in the transverse direction and/or the longitudinal direction. In this embodiment the drainage channels are provided on the upper and/or lower surface of the transverse ribs 4 and/or the longitudinal ribs 5.
At least one of the longitudinal edges of the plastic geogrid is provided with a whole continuous longitudinal rib 5. The width of the continuous longitudinal ribs 5 is more than or equal to 3 mm.
A grid starting material for manufacturing a plastic geogrid comprises a raw material plate body 3, wherein a plurality of raw material counter bores 1 are formed in the upper surface and/or the lower surface of the raw material plate body 3, and a plurality of strip-shaped raw material counter bores 2 are formed in the upper surface and/or the lower surface of the raw material plate body 3.
The raw material sink groove 2 can be a groove directly machined on the raw material plate body 3, or two parallel convex ribs are arranged on the raw material plate body, and a gap between the two convex ribs can also be used as the raw material sink groove 2.
The ratio of the thickness of the bottom of the raw material counter bore 1 to the thickness of the raw material plate body 3 is not more than 0.5.
The raw material counter bore 1 is triangular, quadrangular, pentagonal, hexagonal, octagonal, curved polygonal, circular, elliptical or racetrack shaped, or any combination of the shapes.
A method for manufacturing a plastic geogrid, comprising the steps of:
a. mixing plastic particles as raw materials and an additive;
b. adding the raw materials into an extruder, and melting, plasticizing and extruding at the temperature of 80-400 ℃ to form a raw material plate body 3;
c. extruding a raw material counter bore 1 and a strip-shaped raw material sink groove 2 on a raw material plate body 3 through a calender, a roller press or a hole press at the temperature of 10-200 ℃;
d. cooling and shaping the raw material plate body;
e. the method comprises the following steps of stretching a raw material plate body 3 to form a plastic geogrid through uniaxial stretching, biaxial stretching or multiaxial stretching at the temperature of 80-400 ℃, stretching raw material counter bores 1 to form grid through holes 7, stretching adjacent raw material counter bores 1 to form grid ribs, and forming drainage grooves 6 through raw material counter bores 2.
In this embodiment, the thickness of the raw material plate body 3 is 15mm, the raw material counter bore 1 is an ellipse with a long axis of 45mm and a short axis of 1mm, and the depth of the raw material counter bore 1 is 12 mm. The main material of the grid starting material is polypropylene, a raw material counter bore 1 and a raw material sink groove 2 on the surface of the grid starting material are manufactured by a three-roll calender of a single roller containing convex nails at the temperature of 10-200 ℃, and the width of the raw material sink groove 2 is 4mm and the depth is 2 mm; and (3) carrying out uniaxial stretching orientation on the plastic starting material belt provided with the raw material counter bore 1 and the raw material sink groove 2 at the temperature of 90-130 ℃ to manufacture the plastic geogrid. The plane projection pattern of the grid through hole 7 is oval, the major axis is 440mm, and the minor axis is 15 mm. And one bottom surface of the transverse rib of the plastic geogrid is provided with a drainage groove 6, and the width of the drainage groove 6 is 5mm, and the depth of the drainage groove is 1.3 mm.
Example 2:
as shown in fig. 3 to 4, the present embodiment is different from embodiment 1 in that: the grid rib includes many horizontal ribs 4 and many vertical ribs 5, the junction of horizontal rib 4 and vertical rib 5 is connected node 8, the width of vertical rib 5 and the width of horizontal rib 4 are respectively along being close to the gradual widen rather than connected node 8 direction vertical rib 5, horizontal rib 4 and connected node 8 constitute grid through-hole 7, water drainage tank 6 sets up at the upper surface and/or the lower surface of horizontal rib 4 and/or vertical rib 5.
In the embodiment, the thickness of the raw material plate body 3 is 6mm, the raw material counter bores 1 are squares with the side length of 1.5mm, the depth of the raw material counter bores 1 is 5.5mm, and the central connecting lines of the four adjacent raw material counter bores 1 form a rectangle. The width of the raw material precipitation tank 2 is 1mm, and the depth is 0.5 mm; the main material of the grid starting material is polypropylene, the raw material counter bore 1 and the raw material sink groove 2 on the grid starting material are manufactured by a single three-roll calender with a convex nail roller at the temperature of 80-200 ℃, the grid starting material provided with the raw material counter bore 1 and the raw material sink groove 2 is subjected to biaxial stretching orientation at the temperature of 90-150 ℃ to manufacture the plastic geogrid, the bottom surface of the connecting node 8 is lower than the lowest point of the bottom surfaces of the transverse ribs 4 and the longitudinal ribs 5, the lower bottom surfaces of the transverse ribs 4 and the longitudinal ribs 5 of the plastic geogrid are provided with drainage grooves 6, the width of the drainage grooves 6 is 1.6mm, and the depth of the drainage grooves 6 is 0.2 mm.
Example 3:
as shown in fig. 5 to 6, the present embodiment is different from embodiment 1 in that: grid rib includes many horizontal ribs 4 and many vertical ribs 5, the junction of horizontal rib 4 and vertical rib 5 is connected node 8, the width of vertical rib 5 and the width of horizontal rib 4 widen gradually along the direction that is close to connected node 8 respectively, and is adjacent grid through-hole 7 is constituteed to vertical rib 5, horizontal rib 4 and connected node 8, water drainage tank 6 sets up at the upper surface and/or the lower surface of horizontal rib 4 and/or vertical rib 5.
The grid rib still includes a plurality of slant ribs 9, the width of slant rib 9 widens gradually along the direction of being close to its two extreme points, the one end of slant rib 9 links to each other with connected node 8, and the other end links to each other with vertical rib 5, horizontal rib 4 or connected node 8, and is adjacent vertical rib 5, horizontal rib 4, slant rib 9 and connected node 8 constitute grid through-hole 7, slant rib 9 twists, and slant rib 9 twists indicates that slant rib 9 that leads to takes place the torsion of certain angle in the tensile process of slant rib 9.
The raw material sink 2 in this embodiment is a plurality of rectangular grooves formed in the bottom surface of the raw material plate body 3, eight raw material counter bores 1 are formed in each groove, the connecting lines of the centers of the eight raw material counter bores 1 form a regular octagon, and the grid starting material in this embodiment is stretched by double shafts or multiple shafts to form a plastic geogrid.
Adjacent transverse ribs 4 and longitudinal ribs 5 are arranged in a 90-degree crossed manner, adjacent oblique ribs 9 are arranged in a 90-degree crossed manner, the longitudinal ribs 5 and the oblique ribs 9 are crossed to form 45 degrees, the transverse ribs 4 and the oblique ribs 9 are crossed to form 45 degrees, the drainage grooves 6 are formed in the bottom surfaces of the peripheral transverse ribs 4 and the peripheral longitudinal ribs 5, one ends of the oblique ribs 9 are connected with the connecting nodes 8 in the embodiment, and the other ends of the oblique ribs 9 are also connected with the connecting nodes 8.
In this embodiment, the thickness of the raw material plate body 3 is 6mm, the raw material counter bores 1 are squares with the side length of 3mm, and the central connecting lines of the eight adjacent raw material counter bores 1 form a regular octagon. The width of the raw material precipitation tank 2 is 0.02mm, and the depth is 0.01 mm; the main material of the grid starting material is polypropylene and 5% of polyester is added, the raw material counter bore 1 and the raw material sink groove 2 on the grid starting material are made of plastic plates at 80-260 ℃ through a three-roll calender with a single convex nail roller, the grid starting material with the raw material counter bore 1 is subjected to biaxial or triaxial stretching orientation at 90-150 ℃ to manufacture the plastic geogrid, and the drainage groove 6 is superposed with the transverse ribs 4 and the longitudinal ribs 5.
In another embodiment of this embodiment, both edges of the plastic geogrid in the transverse direction are provided with a continuous longitudinal rib 5, and the width of the continuous longitudinal rib 5 is 6 mm.
Example 4:
as shown in fig. 7 to 8, example 1 is different in that: grid rib includes many horizontal ribs 4 and many vertical ribs 5, the junction of horizontal rib 4 and vertical rib 5 is connected node 8, the width of vertical rib 5 and the width of horizontal rib 4 widen gradually along the direction that is close to connected node 8 respectively, and is adjacent grid through-hole 7 is constituteed to vertical rib 5, horizontal rib 4 and connected node 8, water drainage tank 6 sets up at the upper surface and/or the lower surface of horizontal rib 4 and/or vertical rib 5.
The grid rib still includes a plurality of slant ribs 9, the width of slant rib 9 widens gradually along the direction of being close to its two extreme points, the one end of slant rib 9 links to each other with vertical rib 5, and the other end links to each other with horizontal rib 4, and is adjacent vertical rib 5, horizontal rib 4, slant rib 9 and connected node 8 constitute fillet trilateral grid through-hole 7, and is adjacent slant rib 9 encloses into fillet quadrangle grid through-hole 7, and is adjacent slant rib 9 also encloses into fillet polygon grid through-hole 7 with vertical rib 5 and/or horizontal rib 4, slant rib 9 twists.
At least one bottom surface of the upper bottom surface and the lower bottom surface of the grid starting material is provided with a raw material sink groove 2, the raw material sink grooves 2 form a longitudinally and transversely staggered rectangular groove network, five raw material counter bores 1 are arranged in each rectangular groove network, four raw material counter bores 1 are arranged in a square shape, and the other raw material counter bore 1 is arranged in the center of the square shape.
Four oblique ribs 9 enclose a fillet quadrangle through hole 7, and the drainage grooves 6 are arranged on the bottom surfaces of the transverse ribs 4 and the longitudinal ribs 5.
In the embodiment, the thickness of the starting material of the grating is 6.5mm, the raw material counter bore 1 is a square with the side length of 1.2mm, and the depth of the raw material counter bore 1 is 6 mm. The width of the raw material precipitation tank 2 is 0.03mm, and the depth is 0.012 mm; the main material of the grid starting material is polypropylene.
And (3) carrying out biaxial or triaxial stretching orientation on the initial grid material provided with the raw material counter bore 1 at the temperature of 90-150 ℃ to manufacture the plastic geogrid, wherein the drainage grooves 6 are arranged on the bottom surfaces of the transverse ribs 4 and the longitudinal ribs 5.
In another embodiment of this embodiment, a bottom surface of the geogrid is attached with geotextile by hot-melt. The other bottom surface is also connected with a geomembrane in a hot melting mode.
In another mode of this embodiment, the plastic geogrid is connected with the bidirectional plastic geogrid through hot melting at the upper bottom, and is connected with the geotextile through hot melting at the lower bottom.
In another mode of this embodiment, the plastic geogrid, the three-dimensional geonet pad and the geotextile are connected by ultrasonic sewing to form the reinforced ecological planting net pad.
In another mode of this embodiment, the plastic geogrid, the three-dimensional plastic wire mesh carpet pad, the stretched wire mesh and the geotextile are welded by using molten polypropylene wires to form the reinforced ecological pad.
In another mode of this embodiment, the plastic geogrid, the three-dimensional plastic wire mesh carpet pad, the stretched wire mesh and the geotextile are directly fixed to the ground through the U-shaped nails to form the reinforced ecological pad.
Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (9)
1. A plastic geogrid, which is characterized in that: including plane network structure's grid plate body, the grid plate body includes many staggered connection's grid rib, encloses into the grid through-hole between the adjacent grid rib, the upper surface and/or the lower surface of grid plate body are provided with a plurality of water drainage tank, water drainage tank is long banding heavy groove.
2. A plastic geogrid according to claim 1, wherein: the grid rib includes many horizontal ribs and many vertical ribs, the both ends of vertical rib are all fixed by horizontal rib, the width of vertical rib is along the direction that is close to horizontal rib widen gradually, the joint portion of vertical rib and horizontal rib is the arc of caving in, and is adjacent vertical rib and horizontal rib enclose into rectangular shape through-hole, the plane projection figure of rectangular shape through-hole is linear shape, fusiformis, ellipse or runway shape and their combination, the water drainage tank sets up at the upper surface and/or the lower surface of horizontal rib and/or vertical rib.
3. A plastic geogrid according to claim 1, wherein: the grid rib includes many horizontal ribs and many vertical ribs, the junction of horizontal rib and vertical rib is connected the node, the width of vertical rib and the width of horizontal rib are respectively along being close to its both ends connected node's direction widen gradually, and is adjacent vertical rib, horizontal rib and connected node constitute the grid through-hole, the water drainage tank sets up at the upper surface and/or the lower surface of horizontal rib and/or vertical rib.
4. A plastic geogrid according to claim 3, wherein: the grid rib still includes a plurality of slant ribs, the width of slant rib is along being close to its two extreme points direction widen gradually, the one end and the connected node of slant rib link to each other, and the other end links to each other with vertical rib, horizontal rib or connected node, and is adjacent vertical rib, horizontal rib, slant rib and connected node constitute the grid through-hole, the slant rib distortion.
5. A plastic geogrid according to claim 3, wherein: the grid ribs further comprise a plurality of oblique ribs, the width of each oblique rib gradually becomes wider along the direction close to two end points of the oblique rib, one end of each oblique rib is connected with the corresponding longitudinal rib, the other end of each oblique rib is connected with the corresponding transverse rib, the grid through holes are formed by the adjacent longitudinal ribs, the adjacent transverse ribs, the oblique ribs and the connecting nodes, the grid through holes are formed by the adjacent oblique ribs, the longitudinal ribs and/or the transverse ribs in an enclosing mode, and the oblique ribs are twisted.
6. A plastic geogrid according to any one of claims 1 to 5, wherein: at least one edge of the longitudinal edges of the plastic geogrid is provided with a whole continuous longitudinal rib, and the width of the continuous longitudinal rib is more than or equal to 3 mm.
7. A plastic geogrid according to any one of claims 1 to 5, wherein: the drainage grooves are arranged on the grid ribs along the transverse direction and/or the longitudinal direction.
8. A grid starting material for manufacturing the plastic geogrid according to any one of claims 1 to 5, characterized in that: the plate comprises a raw material plate body, wherein a plurality of raw material counter bores are formed in the upper surface and/or the lower surface of the raw material plate body, and a plurality of strip-shaped raw material counter bores are formed in the upper surface and/or the lower surface of the raw material plate body.
9. A grid starter as claimed in claim 8, wherein: the ratio of the thickness of the bottom of the raw material counter bore to the thickness of the raw material plate body is not more than 0.5.
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| CN202123162623.3U CN216428227U (en) | 2021-12-16 | 2021-12-16 | Plastic geogrid and grid starting material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232589A (en) * | 2021-12-16 | 2022-03-25 | 南昌宇德新材料有限公司 | Plastic geogrid, geogrid starting material and method for manufacturing geogrid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232589A (en) * | 2021-12-16 | 2022-03-25 | 南昌宇德新材料有限公司 | Plastic geogrid, geogrid starting material and method for manufacturing geogrid |
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Effective date of registration: 20220926 Address after: 330006 National Economic and Technological Development Zone, Nanchang City, Jiangxi Province (Tiangao Industrial Park, Mailu Avenue) Patentee after: NANCHANG TEAMGO ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Patentee after: Nanchang Yude New Material Co.,Ltd. Address before: 330200 room 5109, zone 3, Yuexing home Plaza, No. 777, Zhenxing Avenue, Liantang Town, Nanchang County, Nanchang City, Jiangxi Province Patentee before: Nanchang Yude New Material Co.,Ltd. |
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