EP0235101A2 - Einrichtung zur Stabilisierung von Schüttgütern, insbesondere Erdmassen - Google Patents

Einrichtung zur Stabilisierung von Schüttgütern, insbesondere Erdmassen Download PDF

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Publication number
EP0235101A2
EP0235101A2 EP87850010A EP87850010A EP0235101A2 EP 0235101 A2 EP0235101 A2 EP 0235101A2 EP 87850010 A EP87850010 A EP 87850010A EP 87850010 A EP87850010 A EP 87850010A EP 0235101 A2 EP0235101 A2 EP 0235101A2
Authority
EP
European Patent Office
Prior art keywords
web
ground
soil
pockets
slits
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
Application number
EP87850010A
Other languages
English (en)
French (fr)
Other versions
EP0235101B1 (de
EP0235101A3 (en
Inventor
Carl Rolf Hallberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PLATON AS
Original Assignee
PLATON AS
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
Application filed by PLATON AS filed Critical PLATON AS
Priority to AT87850010T priority Critical patent/ATE55439T1/de
Publication of EP0235101A2 publication Critical patent/EP0235101A2/de
Publication of EP0235101A3 publication Critical patent/EP0235101A3/en
Application granted granted Critical
Publication of EP0235101B1 publication Critical patent/EP0235101B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E02D17/202—Securing of slopes or inclines with flexible securing means

Definitions

  • the present invention relates to a device, generally for stabilizing bulk material and more specificly for stabili­zing soil masses, comprising a substantially elongated web which in mounted position defines a plurality of cells or pockets.
  • the invention also relates to a method for stabilizing bulk material, especially soil masses.
  • the invention also relates to a special use of such a device.
  • Another type of device for stabilizing soil comprises plas­tics plates which are stretched in both directions after first having been provided with holes.
  • Examples of such plates are known from Norwegian Patent Specifications l34995, l526ll and l526l2. It is true that the stretching of the plates or the webs results in a net configuration which has a larger depth or thickness than usual flat wire netting, but they do not provide an earth stabilizing ef­fect in the form of stage-wise arranged pockets.
  • Another product is disclosed in Finnish Patent Application 84l09042.6 and Norwegian Patent Application 843270, and comprises multi-edged cells which together define an ele­ment.
  • These elements can be interconnected to cover a slo­pe, the elements having a certain hight, for example 90 mm., a fact which makes it possible for the elements to hold a substantial amount of soil also i slopy terrain.
  • the production of such elements involves not only a larger quantity of plastics material but also a more costly production as such.
  • the elements require a larg volume during transport, a fact which involves higher transport expences even if the elements to a certain degree can be stacked on top of each other.
  • the walls of the cell structure of the finished mounted geotextile will extend under a right angle from the plane of the ground, also when an inclined slope is the case, a fact which involves that the soil which has been filled into the cells and is to be stabilized, more easily will flow out of the cells or pockets due to heavy rain showers.
  • the object of the present invention is first of all to give instructions for a device for stabilizing soil masses, and then a device which does not suffer from the disadvantages inherent in the prior art devices, the favourable caracte­ristics thereof being preferably retained.
  • the above requirements are met in connection with a device o ⁇ the type stated in the pre­amble, which is characterized in that the web is constitu­ted by an initially relatively thin, substantially plane web, preferably made of bendable plastics, which in one direction is provided with rows of subsequently arranged slits which are so staggerd relative to each other that the web when being stretched transversly relative to the slit form oppositely undulated strips which through a suitable mounting define side by side arranged cells or pockets.
  • the transversely stretched device By spreading the transversely stretched device on a slope, the cells or pockets can be filled with soil which is to be stabilized by the device.
  • a flat web is taken as a basis for the pre­sent device, said web being provided with the above stated slits, and allowing for production in larger or lesser rolls for storage and transport.
  • the web can be tran­sported to the place of use in rolls rendering a minimum transport volume. Only at the site, i.e. after the web has been spread out on the ground and has been stretched in the direction transversely to the slits, there will be formed upwardly extending backs or walls, which in turn form pock­ets which stabilize the soil which after the stretching is filled into the pockets of the device.
  • the web can then in advance have been cut in apropriate lengths depending on the landscape or the ground which is to be prepared for soil stabilizing.
  • Another special feature of the present device is related to the small thickness of the web, the stretching thereof im­plying that sharp lower edges appear along the undulating strips, and said sharp edges can easily be pressed into the ground when mounting the web on the site, a fact which en­tails a secure anchoring of the device even in steep slop­es.
  • a further feature of the present device is to the fact that by various degrees of stretching there can be achieved va­rious mutual angles between the wall portions of the undu­lated strips, and that various degrees of stretching can be used for various slope angles of the ground which is to carry the device.
  • Various degrees of stretching will also give different sizes of the cells or pockets, giving larger possibility of selecting a device structure depending on the shape of the terrain.
  • the device may be placed on a support and serve as a guard for sand, snow or similar.
  • each slit there may be provided an edge area taking the form of bulging or embossment, which in connec­tion with the stretching will ensure that the undulation of the corresponding strip portions takes place in the right direction relativ to other strip portions.
  • the plastics web may during the production thereof while still being soft and hot, be subjected to an initial stretching transversly to the slits.
  • This initial stretch­ing may be effected so far that the individual strip porti­ons have embedded thereinto a "thermal memory", or a per­manent initial plastic deformation which is to point out the direction in which the strip portions are to undulate during the final and complete stretching of the web on site.
  • the "thermal memory" or the initial stretching may be effected in the area of the slits, for example by means of combined slitting and pressing rollers.
  • the slits may at each end be provided with curved portions for resisting breakage when the web is stretched.
  • the web may be laminated with a suitable woven or knitted cloth, especially for reinforcing the end portions of the slits.
  • the web is manufactured from plastics, for exam­ ple polyethylen. Suitable additives to the plastics may vary the resistance agianst decomposition.
  • Fig. l which illustrates schematicly a top view of a web which forms the basis of an embodiment of a device accor­ding to the invention used as a soil stabilizing device
  • the web itself is designated by reference numeral l, the web appropriately being manufactured through an extrusion or calender process of a plastics material to a web having a thickness from for example 0.l to 6 mm.
  • the thin substan­tially plane web l of preferably flexible plastics material is during the manufacturing provided with rows of consequ­tively arranged slits, for example by punching or slitting, the slits 2 in the first row being arranged substantially with even spacing, whereas the slits 2a of the adjacent row is arranged with the same spacing but staggert relative to the slits 2 of the first row.
  • the next row of slits 2b are provided parallel to the slits 2 of the first row, and there is in this way provided a slit pattern which by an appropriate stretching of the web l creates oppositily un­dulating strips 3a,3b,3c etc., as this is specially appea­rent from Fig. 2a.
  • the plastics web which in Fig. l is designated by l is during the manufacturing thereof slitted or punched, so as to comprise a plurality of rows of slits 2,2a,2b etc., the number of rows being chosen according to the field of ap­plication of the finished manufactured web.
  • the web can be manufactured in desired width and can be delivered as rolls or as individual web-shaped plates.
  • Fig. la there is shown a section of a web l which has been rolled or spread out on a support onto which the soil masses are to be stabilized. If the slits are made transversely to the production line direction of the web and the web is rolled up in this direction, a web which is rolled out on site will there be stretched in the longitudinal direction, i.e. in the same direction as the rolling out.
  • Fig. 2a At the top of Fig. 2a there is shown a fraction of a web l which has been stretched transverslyto the slits, and which has been placed on a sloping ground 4, for example of soil or gravel, whereas in the middle of Fig. 2a it is shown how the cells or the pockets 8 have been filled with soil 9 which is stabilized by the device l.
  • the stretching gives the web l a substantially non-permanent deformation which however will be retained by the filling of soil mass 9.
  • the upwardly extending backs or walls of the undulations 3a,3b, 3c do not only form pockets 8 but also render a favourable anchoring due to the sharp lower edges l0 which bury them­selves fairly well into the ground, as this is especially illustrated in Fig. 2b.
  • the web l in its stretched condition can be pressed deeply into the ground, it will not slide even in steep slopes.
  • This condition is eve better illustrated in Fig. 3, in which the device l is pressed down into an especially steep hill 4a, and in which the walls of the undulations 3a,3b,3c will still extend vertically from the ground for the forming of cells or pockets 8 having vertical backs or walls.
  • This vertical arrangement of the backs or the walls will aside from rendering a favourable anchoring also give an especially good stabilization of the soil 9 and the pockets during heavy rain.
  • each slit 2,2a,2b etc. may in the area of each slit 2,2a,2b etc. be arranged bulge or embossing ll, which during the stretching of the web l will aid in that the corresponding stip portion will undulate in the correct direction relative to other stip portions.
  • Fig. la there is also illustrated a fixing peg l2 which during the speading of the web l on a sloping ground 4, is inserted through a slit 2 below the upper strip 3a, the peg l2 at its lower end being provided with barbs l2a serving for the attachement to the ground, and which at its upper portion is provided with arms l2b for supporting the upper strip 2 when the web l is stretched out as illustrated in Fig. 2a.
  • the material from which the web l is to be manufactured can for example be a plastics material filled with carbon black, a fact which randers the plastics very resistans to decomposition. Possibly, the plastics may be manufactured without any fillers or be mixed with pigments making the web chemically unstable, a fact which involves that the plastics will disappear after some years out in nature.
  • a thicker plastics web as a soil stabili­zing device it may be necessary to use machanical power for the stretching thereof. This may in some cases be necessa­ ry, but the web is preferably manufactured as a flexible plastics web which can be stretched on site by means of manual force.
  • the present device can be mounted on a sup­port to serve as a guard for sand, snow or similar.
  • the device according to the in­vention also can be used as awning, for example for protec­tion against sunshine, light, radiation etc.
  • the device can then be pre-mounted on a frame which can be mounted in position on the site where it is to be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Fertilizers (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Road Paving Structures (AREA)
  • Cephalosporin Compounds (AREA)
  • Toys (AREA)
  • Catching Or Destruction (AREA)
  • Adhesive Tapes (AREA)
  • Crushing And Grinding (AREA)
  • Casings For Electric Apparatus (AREA)
  • Electronic Switches (AREA)
  • Lubricants (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
EP87850010A 1986-02-24 1987-01-16 Einrichtung zur Stabilisierung von Schüttgütern, insbesondere Erdmassen Expired - Lifetime EP0235101B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87850010T ATE55439T1 (de) 1986-02-24 1987-01-16 Einrichtung zur stabilisierung von schuettguetern, insbesondere erdmassen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO860684 1986-02-24
NO860684 1986-02-24

Publications (3)

Publication Number Publication Date
EP0235101A2 true EP0235101A2 (de) 1987-09-02
EP0235101A3 EP0235101A3 (en) 1987-10-14
EP0235101B1 EP0235101B1 (de) 1990-08-08

Family

ID=19888771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87850010A Expired - Lifetime EP0235101B1 (de) 1986-02-24 1987-01-16 Einrichtung zur Stabilisierung von Schüttgütern, insbesondere Erdmassen

Country Status (16)

Country Link
EP (1) EP0235101B1 (de)
JP (2) JPS62197522A (de)
CN (1) CN1007365B (de)
AT (1) ATE55439T1 (de)
AU (1) AU596646B2 (de)
BG (1) BG48813A3 (de)
BR (1) BR8700619A (de)
CA (1) CA1265679A (de)
DE (1) DE3764115D1 (de)
DK (1) DK83887A (de)
ES (1) ES2017107B3 (de)
FI (1) FI870085A (de)
GR (1) GR3000709T3 (de)
IL (1) IL81369A0 (de)
NZ (1) NZ219238A (de)
YU (1) YU11687A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2185769B (en) * 1986-01-28 1989-11-01 Comporgan Rendszerhaz K V Flexible layer structure for protecting earthworks, bed walls and for delimiting embedding layers
WO1996000327A1 (de) * 1994-06-27 1996-01-04 Henkel Kommanditgesellschaft Auf Aktien Formteile zum sichern von böschungen
FR2728597A1 (fr) * 1994-12-21 1996-06-28 Bidim Geosynthetics Sa Procede pour realiser une base renforcee d'un remblai
FR2872529A1 (fr) * 2004-07-02 2006-01-06 Afitex Sa Equipement a poches de retenue de terre et procede de fabrication d'un tel equipement
US7556800B2 (en) * 2004-07-09 2009-07-07 Viscofan, S.A Universal fishing bait based on filaments or strips of fibrous collagen
CN114486448A (zh) * 2022-02-17 2022-05-13 南京工程学院 一种拉伸土样多角度v或u型裂缝制作方法
CN114482084A (zh) * 2021-12-06 2022-05-13 中铁二院北方勘察设计有限责任公司 一种土质边坡护坡结构的施工方法
CN114855700A (zh) * 2022-04-15 2022-08-05 安徽欣禹水电建筑安装有限责任公司 一种用于水利工程的生态一体化防护坡结构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE690356A (de) * 1965-12-02 1967-05-02
JPH0612524U (ja) * 1992-07-14 1994-02-18 バンドー化学株式会社 ドレーン材
CN108643201B (zh) * 2018-05-11 2019-10-15 广东中绿园林集团有限公司 一种稳固型边坡生态修复装置及修复方法
CN115652962A (zh) * 2022-11-14 2023-01-31 青岛旭域土工材料股份有限公司 一种土工格室用板及阶梯式土工格室

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911794A (en) * 1955-11-04 1959-11-10 Louis O Pearson Retaining wall
DE1915523A1 (de) * 1968-03-26 1969-10-09 Brevetex S A Vorrichtung fuer den Erdschutz
JPS5616730A (en) * 1979-02-24 1981-02-18 Kiyoshi Yamamoto Filling soil material for slope face and application of the same
CA1161618A (en) * 1982-03-18 1984-02-07 Rudolf Parnigoni Method of forming a net-like structure
EP0141913A1 (de) * 1983-08-19 1985-05-22 Toijalan Kotelotehdas Ky Element, um das Herunterrinnen von Wachstumsmedium auf schrägen Flächen zu verhindern
EP0211082A1 (de) * 1985-01-14 1987-02-25 Earthnics Corporation Material und methode zu seiner herstellung, methode zum schutz normaler oberflächen und methode zur herstellung normaler rahmen unter anwendung dieses materials

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017008A (de) * 1973-06-18 1975-02-22

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911794A (en) * 1955-11-04 1959-11-10 Louis O Pearson Retaining wall
DE1915523A1 (de) * 1968-03-26 1969-10-09 Brevetex S A Vorrichtung fuer den Erdschutz
JPS5616730A (en) * 1979-02-24 1981-02-18 Kiyoshi Yamamoto Filling soil material for slope face and application of the same
CA1161618A (en) * 1982-03-18 1984-02-07 Rudolf Parnigoni Method of forming a net-like structure
EP0141913A1 (de) * 1983-08-19 1985-05-22 Toijalan Kotelotehdas Ky Element, um das Herunterrinnen von Wachstumsmedium auf schrägen Flächen zu verhindern
EP0211082A1 (de) * 1985-01-14 1987-02-25 Earthnics Corporation Material und methode zu seiner herstellung, methode zum schutz normaler oberflächen und methode zur herstellung normaler rahmen unter anwendung dieses materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 8, no. 158 (M-311)[1595], 21st July 1984; & JP-A-59 54 529 (MITSUBISHI MONSANTO KASEI K.K.) 29-03-1984 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2185769B (en) * 1986-01-28 1989-11-01 Comporgan Rendszerhaz K V Flexible layer structure for protecting earthworks, bed walls and for delimiting embedding layers
WO1996000327A1 (de) * 1994-06-27 1996-01-04 Henkel Kommanditgesellschaft Auf Aktien Formteile zum sichern von böschungen
FR2728597A1 (fr) * 1994-12-21 1996-06-28 Bidim Geosynthetics Sa Procede pour realiser une base renforcee d'un remblai
FR2872529A1 (fr) * 2004-07-02 2006-01-06 Afitex Sa Equipement a poches de retenue de terre et procede de fabrication d'un tel equipement
US7556800B2 (en) * 2004-07-09 2009-07-07 Viscofan, S.A Universal fishing bait based on filaments or strips of fibrous collagen
CN114482084A (zh) * 2021-12-06 2022-05-13 中铁二院北方勘察设计有限责任公司 一种土质边坡护坡结构的施工方法
CN114486448A (zh) * 2022-02-17 2022-05-13 南京工程学院 一种拉伸土样多角度v或u型裂缝制作方法
CN114486448B (zh) * 2022-02-17 2024-04-12 南京工程学院 一种拉伸土样多角度v或u型裂缝制作方法
CN114855700A (zh) * 2022-04-15 2022-08-05 安徽欣禹水电建筑安装有限责任公司 一种用于水利工程的生态一体化防护坡结构
CN114855700B (zh) * 2022-04-15 2024-02-02 安徽欣禹水电建筑安装有限责任公司 一种用于水利工程的生态一体化防护坡结构

Also Published As

Publication number Publication date
AU6920887A (en) 1987-08-27
EP0235101B1 (de) 1990-08-08
GR3000709T3 (en) 1991-10-10
BR8700619A (pt) 1987-12-15
CA1265679A (en) 1990-02-13
AU596646B2 (en) 1990-05-10
EP0235101A3 (en) 1987-10-14
NZ219238A (en) 1990-09-26
IL81369A0 (en) 1987-08-31
DE3764115D1 (de) 1990-09-13
FI870085A0 (fi) 1987-01-09
YU11687A (en) 1990-12-31
ES2017107B3 (es) 1991-01-01
JPS62197522A (ja) 1987-09-01
DK83887D0 (da) 1987-02-19
JPS62273326A (ja) 1987-11-27
ATE55439T1 (de) 1990-08-15
BG48813A3 (en) 1991-05-15
CN1007365B (zh) 1990-03-28
CN87100916A (zh) 1987-10-28
DK83887A (da) 1987-08-25
FI870085A (fi) 1987-08-25

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