WO1993004856A1 - Grille pour stabilisation de matieres particulaires - Google Patents

Grille pour stabilisation de matieres particulaires Download PDF

Info

Publication number
WO1993004856A1
WO1993004856A1 PCT/US1992/007571 US9207571W WO9304856A1 WO 1993004856 A1 WO1993004856 A1 WO 1993004856A1 US 9207571 W US9207571 W US 9207571W WO 9304856 A1 WO9304856 A1 WO 9304856A1
Authority
WO
WIPO (PCT)
Prior art keywords
mat
grid
struts
particulate materials
tubular members
Prior art date
Application number
PCT/US1992/007571
Other languages
English (en)
Inventor
William W. Bohnhoff
Original Assignee
Bohnhoff William W
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US07/756,459 external-priority patent/US5250340A/en
Application filed by Bohnhoff William W filed Critical Bohnhoff William W
Publication of WO1993004856A1 publication Critical patent/WO1993004856A1/fr

Links

Classifications

    • 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
    • E01C9/00—Special pavings; Pavings for special parts of roads or airfields
    • E01C9/004—Pavings specially adapted for allowing vegetation
    • 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
    • E01C11/00—Details of pavings
    • E01C11/16—Reinforcements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
    • E04D11/002—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings consisting of two or more layers, at least one of the layers permitting turfing of the roof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y02A30/254—Roof garden systems; Roof coverings with high solar reflectance
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/32—Roof garden systems

Definitions

  • the present invention relates to a mat for stabilizing particulate materials, for example soil, sand, gravel and asphalt. Such materials are subject to migration and erosion, as well as damage by vehicular and pedestrian traffic.
  • the present invention is directed to an improved semi-rigid mat having an integrally molded modular construction which may be easily assembled to cover an area of any particular size and shape for use in erosion control, paving and other applications.
  • the present invention provides an improved mat for stabilizing particulate materials which includes a planar quadrilateral grid formed by a plurality of intersecting struts.
  • a reinforcement zone strengthens each of the strut intersections.
  • Upstanding cylindrical tubular members are disposed on the grid in a rectangular array such that the central longitudinal axis of each of the tubular members extends through a strut intersection.
  • Longitudinal ribs are formed on an interior cylindrical sidewall of each of the tubular members and are disposed such that each of the ribs perpendicularly intersects a strut adjacent a bottom end of the tubular member.
  • Sockets are spaced uniformly along two adjacent sides of the mat, with each socket secured between two of the tubular members by a pair of struts.
  • Pins are spaced along the other two adjacent sides of the mat, opposite the sockets, with each pin also secured between two of the tubular members by a pair of struts.
  • the pins are dimensioned for insertion through the sockets, such that a plurality of the mats may be connected in adjacent relation.
  • the free ends of the pins may be deformed after insertion through the sockets to provide permanent securement.
  • the grid, tubular members, pins and sockets are all integrally molded from a semi-rigid thermoplastic material such as high density polyethylene.
  • One or more geotextile layers may be applied to the upper face, the lower face, or both faces of the mat.
  • the mat is intended to stabilize particulate materials such as soil, sand, asphalt, gravel, and may be employed in erosion control, drainage and paving applications.
  • Figure 1 is a front elevational view of the mat for stabilizing particulate materials according to the first embodiment of the present invention
  • Figure 2 is a rear elevational view thereof;
  • Figure 3 is a left side elevational view thereof;
  • Figure 4 is a right side elevational view thereof
  • Figure 5 is a top plan view thereof;
  • Figure 6 is a bottom plan view thereof;
  • Figure 7 is a top perspective view thereof; and
  • Figure 8 is a fragmentary bottom perspective view thereof.
  • Figure 9 is a fragmentary elevational view illustrating the joinder of two adjacent mats by a pin and socket connection.
  • Figure 10 is a fragmentary top perspective view illustrating the joinder of two adjacent mats by a pin and socket connection.
  • Figure 11 is a fragmentary side elevational view illustrating a second embodiment of the invention in which one or more geotextile layers are applied to one face of the mat of Figures 1-8.
  • Figure 12 is a fragmentary side elevational view illustrating a third embodiment of the invention in which one or more geotextile layers are applied to both faces of the mat of Figures 1-8.
  • an improved mat for stabilizing particulate materials includes a plurality of tubular members which, in the illustrated embodiment, take the form of cylindrical rings designated by reference numerals 1 through 36 disposed in a uniform rectangular array defined by a plurality of perpendicular rows and columns.
  • tubular members 31, 32, 33, 34, 35, and 36 define the upper-most row
  • tubular members 31, 25, 19, 13, 7, and 1 define the left-most column.
  • tubular members of other than cylindrical shape may be employed within the scope of the present invention.
  • first and second cooperating fasteners are formed on the side edges of the mat.
  • the first fasteners take the form of a plurality of sockets, designated by reference numerals 37 through 42, disposed along two adjacent sides of the quadrilateral mat.
  • the second fasteners take the form of pins, designated by reference numerals 43 through 48, spaced along the other two sides of the mat, such that the pins are located opposite the sockets.
  • two mats may be secured in adjacent relation by inserting the pins spaced along one side edge of one mat through the sockets spaced along a side edge of another mat.
  • the pin 47 disposed between tubular members 3 and 4 of one mat may be inserted through the socket 38* disposed between the tubular members 33* and 34* of another identical mat.
  • the upper ends of the pins, for example pin 47 in Figure 9 may then be deformed so that the pins may not be withdrawn from the socket.
  • This deformation may be effected by mushrooming the upper end of the pin 47, preferably formed from a thermoplastic material, by heating with a soldering iron S.
  • the soldering iron S may be powered by conventional AC current or 12 VDC current, butane, etc. for field use.
  • other means of securing the pins within the socket may be employed. Suitable securing means include ultrasonic welding, adhesives, etc. While a single mat may be formed of any desired dimensions, it is preferably about 0.5 meters square, such that four mats may be preassembled in a single one square meter unit. These preassembled units may then be stacked and shipped on a standard freight pallet.
  • an elongated strip about five mats wide and fifty feet long may be preassembled and rolled into a large roll adapted to be subsequently shipped and unrolled on site.
  • a single soldering unit with a plurality of spaced heating heads may be employed to simultaneously deform a large number of pins.
  • the mats may be formed in other than a square shape, for example, oval, circular, rectangular, triangular, hexagonal, octagonal, etc. , within the scope of the invention.
  • the tubular members 1 through 36 are preferably integrally molded with a planar grid formed by a plurality of intersecting perpendicular struts.
  • the tubular member 34 is disposed centrally with respect to an intersection 49 of perpendicular struts 50 and 51.
  • the struts may be disposed in other than a perpendicular rectangular grid pattern, for example concentric ring struts with intersecting radially extending struts may be employed.
  • the struts may be arranged such that the grid openings are circular, oval, triangular, hexagonal, octagonal, etc. , within the spirit and scope of the present invention.
  • a plurality of longitudinal ribs extend along internal cylindrical sidewalls of the tubular members such that each of the ribs 52 intersect one of the struts, for example strut 51, adjacent a bottom end of one of the tubular member, as shown in Figures 5, 6 and 8.
  • each cylindrical tubular member possesses four such longitudinal ribs 52 disposed at ninety degree angular intervals.
  • Each of the strut intersections for example the intersection 49 within the tubular member 34 and the external intersection 53, are reinforced by enlarging the dimensions of the zone of intersection with respect to the dimensions of the intersecting struts.
  • the tubular members 1 through 36, sockets 37 through 42, pins 43 through 48 and all of the struts are preferably integrally molded from a semi-rigid thermoplastic material, preferably high density polyethylene, in an injection molding process.
  • Polypropylene is another suitable material.
  • the material selected should provide sufficient rigidity to resist undesired deformation and lateral shifting, but also be sufficiently flexible to allow the mat to be rolled for shipment and also to accommodate uneven terrain.
  • an upstanding cylindrical boss 54 is formed on each of the external strut intersection zones, for example the intersection 53 disposed adjacent tubular members 33 and 34.
  • a central circular intersection zone 55 is substantially enlarged with respect to the other strut intersection zones and possesses an enlarged upstanding cylindrical boss 56.
  • the zone 55 is the result of an enlargement in the mold to serve as a distribution point for the thermoplastic material during the injection molding process.
  • the struts serve as sprues or runners which distribute the thermoplastic material throughout the mat structure during the molding process.
  • each of the pins for example pin 43 disposed between tubular members 25 and 31, is secured between two tubular members by a pair of struts 57 and 58.
  • each of the sockets for example socket 37 disposed between tubular members 31 and 32, is secured between two tubular members by a pair of struts 59 and 60.
  • each of the sockets for example socket 37, is secured to struts 59 and 60, by inclined mounting surfaces 62 and 61, respectively.
  • a cross brace 63 extends between each of the socket supporting struts 59 and 60 adjacent their intersections with inclined mounting surfaces 62 and 61.
  • one side of the brace 63 is formed with an arcuate recess 64 to provide free clearance for insertion of a cooperating pin.
  • one or a plurality of sheet layers 66, 67 and 68 may be secured to or placed over one face of the mat.
  • a suitable adhesive 65 may be employed to effect securement of the sheet layer(s) to the tubular members, for example tubular member 31, and/or to the grid supporting the tubular members.
  • the sheet layers are preferably geotextile materials, and/or geomembranes, and/or skeletal layers in accordance with the disclosure of U.S. Patent No. 4 896,993.
  • the geotextile sheet(s) may be applied to the bottom surface
  • the grid structure provides additional support for the geotextile sheet, as opposed to the use of tubular members in the absence of the semi-rigid grid, because the struts provide additional supporting contact points.
  • Figure 12 illustrates the use of one or more sheet layers 66, 67, and 68 applied to both faces of the mat.
  • This construction results in the formation of voids within and passages between the tubular members, and also in the exclusion of particulate material from the internal structure between the layers. It is contemplated that this embodiment would be utilized in construction applications to form drainage passages, for example on roof decks, in which water would filter through the geotextile materials and be channeled and/or stored within the interior structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Structures (AREA)

Abstract

Une grille quadrilatérale plane destinée à stabiliser des matières particulaires est formée d'une pluralité d'entretoises (50, 51). Une zone de renforcement (49) renforce chaque intersection d'entretoises. Des éléments tubulaires cylindriques droits (1-36) sont placés sur la grille dans une disposition rectangulaire de façon que l'axe longitudinal central de chaque élément tubulaire (1-36) passe par une intersection d'entretoises (49). Des nervures longitudinales (52) sont formées sur une paroi latérale cylindrique interne de chaque élément tubulaire (1-36) et sont placées de telle façon que chacune des nervures (52) coupe perpendiculairement une entretoise (50, 51) adjacente à l'extrémité inférieure de l'élément tubulaire (1-36). Des douilles (38) sont espacées uniformément le long de deux côtés adjacents de la grille, chaque douille (38) étant fixée entre deux des éléments tubulaires (1-36) par une paire d'entretoises (59, 60).
PCT/US1992/007571 1991-09-09 1992-09-08 Grille pour stabilisation de matieres particulaires WO1993004856A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US756,459 1991-09-09
US07/756,459 US5250340A (en) 1990-08-31 1991-09-09 Mat for stabilizing particulate materials

Publications (1)

Publication Number Publication Date
WO1993004856A1 true WO1993004856A1 (fr) 1993-03-18

Family

ID=25043583

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1992/007571 WO1993004856A1 (fr) 1991-09-09 1992-09-08 Grille pour stabilisation de matieres particulaires

Country Status (2)

Country Link
AU (1) AU2660892A (fr)
WO (1) WO1993004856A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2721626A1 (fr) * 1994-06-22 1995-12-29 Fritz E Ag Structure alvéolaire de protection de gazon.
FR2748760A1 (fr) * 1996-05-20 1997-11-21 Screg Couche de chaussee armee, structure alveolaire et element a base de matiere plastique pour une telle couche de chaussee
EP0853161A2 (fr) * 1997-01-10 1998-07-15 Cooper Clarke Group plc Système de protection de gazon
NL1015781C2 (nl) 2000-03-14 2001-09-21 Ooms Avenhorn Holding Bv Inrichting voor het fixeren van slangen, buizen of andere leidingen in een wegdek.
GB2493776A (en) * 2011-08-19 2013-02-20 R3 Products Ltd Lattice for use in ground works
FR2979644A1 (fr) * 2011-09-02 2013-03-08 Daniel Moquet Signe Vos Allees Element de revetement d'une surface comprenant des moyens d'ancrage a ladite surface
PT108553A (pt) * 2015-06-12 2016-12-12 Embalnor Embalagens Normalizadas S A Sistema de nivelação de uma grelha de enrelvamento ajustável
CN113502836A (zh) * 2021-07-27 2021-10-15 中国长江三峡集团有限公司 排水土工格栅及支护结构和方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6432098A (en) * 1998-02-17 1999-08-30 Sian Ghee Alan Lee A grid structure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3438312A (en) * 1965-10-22 1969-04-15 Jean P M Becker Ground covering capable for use in playing tennis in the open air or under cover
US4008548A (en) * 1975-09-24 1977-02-22 Leclerc Raymond W Playing surface

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3438312A (en) * 1965-10-22 1969-04-15 Jean P M Becker Ground covering capable for use in playing tennis in the open air or under cover
US4008548A (en) * 1975-09-24 1977-02-22 Leclerc Raymond W Playing surface

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2721626A1 (fr) * 1994-06-22 1995-12-29 Fritz E Ag Structure alvéolaire de protection de gazon.
FR2748760A1 (fr) * 1996-05-20 1997-11-21 Screg Couche de chaussee armee, structure alveolaire et element a base de matiere plastique pour une telle couche de chaussee
EP0808947A1 (fr) * 1996-05-20 1997-11-26 Screg Couche de chaussée armée, structure alvéolaire et élément à base de matière plastique pour une telle couche de chaussée
EP0853161A2 (fr) * 1997-01-10 1998-07-15 Cooper Clarke Group plc Système de protection de gazon
EP0853161A3 (fr) * 1997-01-10 1998-12-23 Cooper Clarke Group plc Système de protection de gazon
NL1015781C2 (nl) 2000-03-14 2001-09-21 Ooms Avenhorn Holding Bv Inrichting voor het fixeren van slangen, buizen of andere leidingen in een wegdek.
GB2493776A (en) * 2011-08-19 2013-02-20 R3 Products Ltd Lattice for use in ground works
GB2493776B (en) * 2011-08-19 2018-05-02 Hahn Plastics Ltd Apparatus for use in ground works
FR2979644A1 (fr) * 2011-09-02 2013-03-08 Daniel Moquet Signe Vos Allees Element de revetement d'une surface comprenant des moyens d'ancrage a ladite surface
PT108553A (pt) * 2015-06-12 2016-12-12 Embalnor Embalagens Normalizadas S A Sistema de nivelação de uma grelha de enrelvamento ajustável
CN113502836A (zh) * 2021-07-27 2021-10-15 中国长江三峡集团有限公司 排水土工格栅及支护结构和方法

Also Published As

Publication number Publication date
AU2660892A (en) 1993-04-05

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