EP0235101B1 - Einrichtung zur Stabilisierung von Schüttgütern, insbesondere Erdmassen - Google Patents

Einrichtung zur Stabilisierung von Schüttgütern, insbesondere Erdmassen Download PDF

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Publication number
EP0235101B1
EP0235101B1 EP87850010A EP87850010A EP0235101B1 EP 0235101 B1 EP0235101 B1 EP 0235101B1 EP 87850010 A EP87850010 A EP 87850010A EP 87850010 A EP87850010 A EP 87850010A EP 0235101 B1 EP0235101 B1 EP 0235101B1
Authority
EP
European Patent Office
Prior art keywords
web
ground
soil
stretching
pockets
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.)
Expired - Lifetime
Application number
EP87850010A
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English (en)
French (fr)
Other versions
EP0235101A2 (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
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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 streched in both directions after first having been provided with holes. Examples of such plates are known from Norwegian Patent Specifications 134 995, 152 611 and 152612.
  • the walls of the cell structure of the completely installed 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 characteristics thereof being preferably retained.
  • the above requirements are met in connection with a device of 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 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.
  • 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 I creates op- positily undulating strips 3a,3b,3c etc., as this is specially appearent from Fig. 2a.
  • the plastics web which in Fig. I is designated by I 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 I 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 I which has been stretched transversly to 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 I.
  • the stretching gives the web I 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 10 which bury themselves fairly well into the ground, as this is especially illustrated in Fig. 2b.
  • the web I 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 I 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 II, which during the stretching of the web I will aid in that the corresponding stip portion will undulate in the correct direction relative to other strip portions.
  • Fig. la there is also illustrated a fixing peg 12 which during the speading of the web I on a sloping ground 4, is inserted through a slit 2 below the upper strip 3a, the peg 12 at its lower end being provided with barbs 12a serving for the attachement to the ground, and which at its upper portion is provided with arms 12b for supporting the upper strip 2 when the web I is stretched out as illustrated in Fig. 2a.

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  • 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)

Claims (13)

1. Vorrichtung, insbesondere zum Stabilisieren von Schüttgütern, mit einem ursprünglich verhältnismässig dünnen, hauptsächlich flachen Gewebe (1), vorzugsweise aus flexiblem Material, das in einer ersten Richtung mit Reihen von hintereinander angeordneten, gegenseitig versetzten Schlitzen (2, 2a, 2b etc.) versehen ist, dadurch gekennzeichnet, dass im Bereich eines oder mehrerer Schlitze (2, 2a, 2b) eine Ausbauchung oder Prägung (11) vorgesehen ist, die beim Strecken des Gewebes dazu dient, das entsprechende Streifenteil in der rechten Richtung gegenüber den anderen Streifenteilen zu wellen, so dass das Gewebe (1) nach dem Strecken desselben entgegengesetzt gewellte Streifen (3a, 3b, 3c) bildet, die Seite an Seite angebracht Zellen oder Taschen (8) bilden, die mit durch die Vorrichtung (1) zu stabilisierendem Erdreich gefüllt werden können.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Gewebe (1) ein "eingefrorenes thermisches Rückstellbestreben" oder eine anfängliche Querstreckung aufweist, das/die während der Herstellung eines Kunststoffgewebes bewirkt wird und die Richtung einnimmt, in der die Streifen bei der endgültigen Streckung an Ort und Stelle zu wellen sind.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das "eingefrorene thermische Rückstellbestreben" oder die ursprüngliche Streckung im Bereich der Schlitze bewerkstelligt ist, beispielsweise durch kombinierte Schlitzungs-und Pressrollen.
4. Vorrichtung nach einem der Ansprüche 1-3, dadurch gekennzeichnet, dass die durch das Strecken des Gewebes (1) entgegengesetzt gewellten Streifen (3a, 3b, 3c) Wellenbögen (1) aufweisen, die leicht in den Erdboden (4) eingepresst werden können und dadurch ein Verankern der Vorrichtung (1) im Erdreich sicherstellt.
5. Vorrichtung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, dass verschiedenes Strecken des Gewebes (1) zu verschiedenen gegenseitigen Winkeln zwischen den Wandteilen der entgegengesetzt gewellten Streifen (3a, 3b, 3c) führen, so dass unterschiedliches Strecken in Abhängigkeit vom Böschungswinkel des Erdreiches (4) angewandt werden kann, welches die Vorrichtung (1) tragen soll.
6. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Enden der Schlitze (2) des Gewebes (1) mit kurvenförmigen Teilen ausgestattet sind, um Bruchbeanspruchungen zu widerstehen, wenn das Gewebe (1) quer zu den Schlitzen gestreckt wird.
7. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Gewebe mit einem geeigneten gewebten oder gestrickten Tuch zur weiteren Verstärkung der Endteile der Schlitze (2) beschichtet ist.
8. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Gewebe (1) aus Kunststoff hergestellt ist, beispielsweise aus Polyäthylen.
9. Verfahren zum Stabilisieren von Schüttgütern, insbesondere Erdreich, durch Verwendung eines verhältnismässig dünnen, hauptsächlich flachen Gewebes (1), vorzugsweise aus flexiblem Material, das in einer ersten Richtung mit einer Reihe von hintereinander angebrachten Schlitzen (2, 2a, 2b) versehen ist, wobei das Gewebe in passenden Längen über einen ebenen oder ein Gefälle aufweisenden Boden (4) ausgebreitet wird, dessen Erdmassen zu stabilisieren sind, dadurch gekennzeichnet, dass ein Gewebe (1) verwendet wird, das im Rahmen seiner Herstellung mit Ausbauchungen oder ähnlichen Mltteln (11) versehen ist, die eine vorgegebene Wellung von Streifen (3a, 3b, 3c) sicherstellen, wenn das Gewebe (1) in einer zweiten Richtung (3a, 3b, 3c) gestreckt wird, dass das Gewebe nach dem Ausbreiten auf der Erde (4) an seinem einen sich in Längsrichtung erstreckenden Ende im Boden (4) durch geeignete Befestigungsmittel (12) verankert wird, und dass das Gewebe (1) danach in der zweiten Richtung zur Bildung von entgegengesetzt gewellten Streifen (3a, 3b, 3c) gestreckt wird, die ihrerseits Seite an Seite liegende Zellen oder Taschen (8) bilden, die mit der durch die Vorrichtung (1) zu stabilisierenden Erde gefüllt werden können.
10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass das Gewebe (1) nach dem Strecken seine unteren Kantenteile (1) der individuell gewellten Streifen (3a, 3b, 3c) in das Erdreich (4) eingepresst bekommt, um die Vorrichtung (1) im Erdboden (4) zu verankern.
11. Verfahren nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass das Gewebe (1) am Einsatzort in der zweiten Richtung zwecks vollständiger, nicht permanenter Verformung zu den genannten Zellen oder Taschen (8) gestreckt wird, sowie dass die Deformation durch Einfüllen von Erdreich (9) in die Zellen oder Taschen (8) beibehalten wird.
12. Verfahren nach Anspruch 9-11, dadurch gekennzeichnet, dass das Gewebe (1) in geeigneter Länge am einen Gestell entlang einer seiner Endkanten befestigt wird, sowie dass das Gewebe (1) danach in einer Richtung zur Bildung von entgegengesetzt gewellten Streifen (3a, 3b, 3c) gestreckt wird, die ihrerseits Seite an Seite sitzende Zellen oder Taschen (8) bilden, die als Schutz vor herumwirbelndem Sand, Schnee o.dgl. dienen.
13. Verwendung einer Vorrichtung nach einem der Ansprüche 1-8 als Markise, z.B. zum Schutz gegen Sonnenschein, Licht, Strahlung o.dgl.
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 EP0235101A2 (de) 1987-09-02
EP0235101A3 EP0235101A3 (en) 1987-10-14
EP0235101B1 true 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)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE690356A (de) * 1965-12-02 1967-05-02
HUT43659A (en) * 1986-01-28 1987-11-30 Laszlo Varkonyi Flexible structure for preventing earthworks, bed walls and for limiting base
JPH0612524U (ja) * 1992-07-14 1994-02-18 バンドー化学株式会社 ドレーン材
DE4422337A1 (de) * 1994-06-27 1996-01-04 Henkel Kgaa Formteile zum Sichern von Böschungen
FR2728597B1 (fr) * 1994-12-21 1997-03-14 Bidim Geosynthetics Sa Procede pour realiser une base renforcee d'un remblai
FR2872529B1 (fr) * 2004-07-02 2007-08-31 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
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
CN114482084B (zh) * 2021-12-06 2022-12-06 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
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
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
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1915523A1 (de) * 1968-03-26 1969-10-09 Brevetex S A Vorrichtung fuer den Erdschutz
EP0141913A1 (de) * 1983-08-19 1985-05-22 Toijalan Kotelotehdas Ky Element, um das Herunterrinnen von Wachstumsmedium auf schrägen Flächen zu verhindern

Family Cites Families (5)

* 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
JPS5017008A (de) * 1973-06-18 1975-02-22
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
WO1986004101A1 (en) * 1985-01-14 1986-07-17 Earthnics Corporation Material and method of manufacturing same, and method of protecting normal surfaces and method of constructing normal frames using same material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1915523A1 (de) * 1968-03-26 1969-10-09 Brevetex S A Vorrichtung fuer den Erdschutz
EP0141913A1 (de) * 1983-08-19 1985-05-22 Toijalan Kotelotehdas Ky Element, um das Herunterrinnen von Wachstumsmedium auf schrägen Flächen zu verhindern

Also Published As

Publication number Publication date
AU6920887A (en) 1987-08-27
GR3000709T3 (en) 1991-10-10
EP0235101A2 (de) 1987-09-02
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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