EP2556196B1 - Method of protecting a soil from erosion - Google Patents

Method of protecting a soil from erosion Download PDF

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Publication number
EP2556196B1
EP2556196B1 EP11728945.4A EP11728945A EP2556196B1 EP 2556196 B1 EP2556196 B1 EP 2556196B1 EP 11728945 A EP11728945 A EP 11728945A EP 2556196 B1 EP2556196 B1 EP 2556196B1
Authority
EP
European Patent Office
Prior art keywords
geotextile
geogrid
spatial
anchors
strips
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.)
Not-in-force
Application number
EP11728945.4A
Other languages
German (de)
French (fr)
Other versions
EP2556196A2 (en
Inventor
Boleslaw Dutkiewicz
Feliks Gajos
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.)
Zaklad Slusarski Przetworstwo Tworzyw Sztucznych Feliks Gajos Boleslaw Dutkiewicz sp jawna
Original Assignee
Zaklad Slusarski Przetworstwo Tworzyw Sztucznych Feliks Gajos Boleslaw Dutkiewicz sp jawna
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 Zaklad Slusarski Przetworstwo Tworzyw Sztucznych Feliks Gajos Boleslaw Dutkiewicz sp jawna filed Critical Zaklad Slusarski Przetworstwo Tworzyw Sztucznych Feliks Gajos Boleslaw Dutkiewicz sp jawna
Priority to RS20160485A priority Critical patent/RS54884B1/en
Priority to SI201130883A priority patent/SI2556196T1/en
Publication of EP2556196A2 publication Critical patent/EP2556196A2/en
Application granted granted Critical
Publication of EP2556196B1 publication Critical patent/EP2556196B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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

Definitions

  • the subject of the invention a method of protecting a soil from erosion, in particular, from the erosion caused by rainwater and wind, as well as an equipment set to implement such soil protection
  • the purpose of the invention is to achieve an effective, cheap and easy to implement method of protecting the soil from erosion.
  • a method according to the invention relies on that on the surface to be protected is placed a geotextile of a basis weight of 200 to 500 g/m 2 and containing plant seeds in its structure in amount ranging from 10 to 20% of weight. Then this geotextile is covered by a spatial geogrid made of a set of plastic strips of thickness ranging from 1 to 7 mm. In the set each of the strips is permanently connected to the adjacent strip at regular distances, advantageously every 340 mm, forming spatial cells of the sizes ranging from 200 to 500 cm 2 and with a height of side walls ranging from 20 to 50 mm. Next, the spatial geogrid is-fixed to the ground by anchors and the spatial cells are filled with humus.
  • a biodegradable geotextile or a geosynthetic geotextile can be used as the geotextile.
  • the plastic strips forming the geogrid are perforated.
  • the anchors have a form of a rod bent at an angle of 180 degrees, advantageously of a rod of a diameter of 8 mm.
  • the solution according to the invention enables rapid, effective and low-cost protection from erosion of all types of land surfaces such as embankments, ditches and flood embankments. Additional advantages of the solution are: possibility of conducting ground works even before and after the growing season, getting almost 100% of biologically active ("green") surface, a large capacity to keep the seeds in the moisture which guarantees intense vegetation practically independent from the degree of the land slope.
  • Fig. 1 shows a vertical section of the slope protected using the method according to the invention.
  • Fig.2 shows a perspective view of an exemplary spatial geogrid used in the process of realisation of the invention.
  • Fig. 3 depicts the top view of the anchored geogrid prepared to be filled with humus.
  • a line was made on the crown of the scarp, at a distance of 50 cm from the upper edge 2 of the scarp 1.
  • an anchoring ditch 3 of the depth of 30 cm was made.
  • end of the geotextile roll 4 of a width of 300 cm was placed.
  • end of the geotextile roll 4 was anchored in the ditch 3 and covered with soil.
  • the geotextile roll 4 was unrolled down to the foot of the scarp 1.
  • a bidegradable geotextile, made of a mixture of wool and cotton, of a basis weight of 250-300 g/m 2 in a dry state and containing grass seeds 5 inside, in the amount of about 10%-20% of weight. was used.
  • a typical spatial geogrid 6 was placed on the unrolled geotextile 4.
  • the geogrid used was of the type in which a single leaf was made of sixty high-density polyethylene strips 7 of a width of 25 mm and a length of 3500 mm, ultrasonically welded 8 together, passing one another every 340 mm. After unrolling such leaf on a surface, a cell structure that is obtained has a width of about 260 cm and contains the cells 9, each forming an area of about 300 cm 2 .
  • the upper edge of the geogrid 6 was anchored in said ditch 3 with the use of anchors 10 made of steel wire of the diameter of 8 mm, U-shaped with a height of 400 mm, or J-shaped anchors with a height of 500 mm.
  • the anchors 10 were placed in every second cell.
  • the adjacent patches of the spatial geogrid 6 are connected by the U-shaped anchors 10 placed in every adjacent cell 9.
  • the unrolled geogrid 6 patches, which are not situated on the edges, are fixed to the ground with the J-shaped anchors 11 using one anchor for each 1.5 square meter of the covered surface.
  • the ready-made equipment sets can be used which are adjusted to the specific slope through the choice of the basis weights of the geotextile 4 and the geogrid 6 parameters.
  • Such equipment set contains a designation of a number of square meters of a land to be covered, adjusted amount of the geotextile 4 and a number of the geogrid patches 6 as well as correct number of the U-shaped 10 and J-shaped anchors 11.
  • the set prepared for area of 100 m 2 of a typical embankments contains approximately 110 m 2 (4 rolls) of the geotextile 4 that is described above, four patches of the spatial geogrid 6 described above, ninety U-shaped anchors 10 and eighty J-shaped anchors 11.

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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)
  • Cultivation Of Plants (AREA)
  • Protection Of Plants (AREA)

Description

    Technical Field
  • The subject of the invention a method of protecting a soil from erosion, in particular, from the erosion caused by rainwater and wind, as well as an equipment set to implement such soil protection
    • Background Art
  • There are well-known methods of protecting a sloping ground surface through grass sowing or covering the land with the ready-made turf. There are also methods of protecting such surfaces by placing concrete hollow core slabs on the slope and filling the holes with humus mixed with grass seeds. Moreover, there are known methods of protecting soil with the use of humus mixed with grass seeds and geotextile. Such solutions were disclosed, for example, in the Polish patent application P-358972 and in the Polish patent PL188728 . GB 2185769 discloses a flexible ground cover structure protecting against harmful effect of wind and water acting on surface of artwork. The structure is made of spatial net of thickness from 10 to 40 cm filled with natural materials, as earth, humus, rock and gravel. To the bottom of the spatial net a composite layer made of geotextile and waterproof foil is glued. This document discloses a method according to the preamble of claim 1.
    • Disclosure of Invention
  • The purpose of the invention is to achieve an effective, cheap and easy to implement method of protecting the soil from erosion.
  • A method according to the invention, as defined by claim 1, relies on that on the surface to be protected is placed a geotextile of a basis weight of 200 to 500 g/m2 and containing plant seeds in its structure in amount ranging from 10 to 20% of weight. Then this geotextile is covered by a spatial geogrid made of a set of plastic strips of thickness ranging from 1 to 7 mm. In the set each of the strips is permanently connected to the adjacent strip at regular distances, advantageously every 340 mm, forming spatial cells of the sizes ranging from 200 to 500 cm2 and with a height of side walls ranging from 20 to 50 mm. Next, the spatial geogrid is-fixed to the ground by anchors and the spatial cells are filled with humus.
  • In the method according to the invention, a biodegradable geotextile or a geosynthetic geotextile can be used as the geotextile.
  • In one of variants of the method according to the invention, the plastic strips forming the geogrid are perforated.
  • In another variant of the method according to the invention, for every two square meters of the spatial geogrid from 2 to 3 anchors are used.
  • In yet another variant of the method according to the invention, the anchors have a form of a rod bent at an angle of 180 degrees, advantageously of a rod of a diameter of 8 mm.
  • The solution according to the invention enables rapid, effective and low-cost protection from erosion of all types of land surfaces such as embankments, ditches and flood embankments. Additional advantages of the solution are: possibility of conducting ground works even before and after the growing season, getting almost 100% of biologically active ("green") surface, a large capacity to keep the seeds in the moisture which guarantees intense vegetation practically independent from the degree of the land slope.
    • Brief Description of Drawings
  • The invention is presented schematically in figures of the drawing. Fig. 1 shows a vertical section of the slope protected using the method according to the invention. Fig.2 shows a perspective view of an exemplary spatial geogrid used in the process of realisation of the invention. Fig. 3 depicts the top view of the anchored geogrid prepared to be filled with humus.
    • Mode for Carrying Out the Invention
  • The invention will be explained in more detail, basing on exemplary protection from erosion of a two-meter-high scarp with the slope of 45%.
  • After levelling the slope surface of the scarp 1 with the well-known methods, a line was made on the crown of the scarp, at a distance of 50 cm from the upper edge 2 of the scarp 1. Along the line an anchoring ditch 3 of the depth of 30 cm was made. In the anchoring ditch 3 end of the geotextile roll 4 of a width of 300 cm was placed. Then end of the geotextile roll 4 was anchored in the ditch 3 and covered with soil. Next, the geotextile roll 4 was unrolled down to the foot of the scarp 1. A bidegradable geotextile, made of a mixture of wool and cotton, of a basis weight of 250-300 g/m2 in a dry state and containing grass seeds 5 inside, in the amount of about 10%-20% of weight. was used. Then, similarly, next strips of the same geotextile 4 were placed and anchored with the minimum of 10 cm overlap. A typical spatial geogrid 6 was placed on the unrolled geotextile 4. The geogrid used was of the type in which a single leaf was made of sixty high-density polyethylene strips 7 of a width of 25 mm and a length of 3500 mm, ultrasonically welded 8 together, passing one another every 340 mm. After unrolling such leaf on a surface, a cell structure that is obtained has a width of about 260 cm and contains the cells 9, each forming an area of about 300 cm2. The upper edge of the geogrid 6 was anchored in said ditch 3 with the use of anchors 10 made of steel wire of the diameter of 8 mm, U-shaped with a height of 400 mm, or J-shaped anchors with a height of 500 mm. Along the upper edge of the geogrid 6, the anchors 10 were placed in every second cell. The adjacent patches of the spatial geogrid 6 are connected by the U-shaped anchors 10 placed in every adjacent cell 9. The unrolled geogrid 6 patches, which are not situated on the edges, are fixed to the ground with the J-shaped anchors 11 using one anchor for each 1.5 square meter of the covered surface. After careful anchorage of all geogrid patches 6, its cells 9 were filled with humus 12 with the surplus of about 2 cm and than the humus was sprinkled with water. If necessary, the geogrid 6 with the strips of larger length and width can be used, as well as with strips perforated or incised. To accelerate the pace of work, the ready-made equipment sets can be used which are adjusted to the specific slope through the choice of the basis weights of the geotextile 4 and the geogrid 6 parameters. Such equipment set contains a designation of a number of square meters of a land to be covered, adjusted amount of the geotextile 4 and a number of the geogrid patches 6 as well as correct number of the U-shaped 10 and J-shaped anchors 11. The set prepared for area of 100 m2 of a typical embankments contains approximately 110 m2 (4 rolls) of the geotextile 4 that is described above, four patches of the spatial geogrid 6 described above, ninety U-shaped anchors 10 and eighty J-shaped anchors 11.

Claims (6)

  1. A method of protecting a soil from erosion, relying on covering a surface of soil to be protected by mats consisting of geotextile (4) and spatial geogrid (6) with spatial cells, fixing the mats to the ground by anchors (10,11) and covering the mats with humus, wherein on the surface to be protected is placed a geotextile (4), then the geotextile (4) is covered by a spatial geogrid (6), in which each of the strips (7) is permanently connected (8) to the adjacent strips (7) at regular distances, advantageously every 340 mm, forming spatial cells (9), and next, the spatial geogrid (6) is fixed to the ground by the anchors (10,11), the spatial cells (9) are filled with humus (12), characterized in that the geotextile (4) is of a basis weight of 200 to 500 g/m2 and containing plant seeds (5) in its structure in amount ranging from 10 to 20% of weight, the spatial geogrid (6) made of a set of plastic strips (7) of thickness ranging from 1 to 7 mm, and the spatial cells (9) are of the sizes ranging from 200 to 500 cm2 and with a height of side walls (7) ranging from 20 to 50 mm.
  2. The method according to Claim 1, characterized by using a biodegradable geotextile as the geotextile (4).
  3. The method according to Claim 1, characterized by using a geosynthetic geotextile as the geoxtile(4).
  4. The method according to one of Claims 1 to 3, characterized in that the strips (7) forming the geogrid (6) are perforated.
  5. The method according to one of Claims 1 to 4, characterized in that for every two square meters of the geogrid (6) from 2 to 3 anchors (11) are used.
  6. The method according to one of Claims 1 to 5, characterized in that the anchors (10, 11) have a form of a rod bent at an angle of 180 degrees, advantageously of a rod of a diameter of 8 mm.
EP11728945.4A 2010-04-08 2011-04-07 Method of protecting a soil from erosion Not-in-force EP2556196B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
RS20160485A RS54884B1 (en) 2010-04-08 2011-04-07 Method of protecting a soil from erosion
SI201130883A SI2556196T1 (en) 2010-04-08 2011-04-07 Method of protecting a soil from erosion

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL390948A PL390948A1 (en) 2010-04-08 2010-04-08 Method for land protection against erosion and kit for this type of protection
PCT/IB2011/051507 WO2011125044A2 (en) 2010-04-08 2011-04-07 Method of protecting a soil from erosion and equipment set for such protection

Publications (2)

Publication Number Publication Date
EP2556196A2 EP2556196A2 (en) 2013-02-13
EP2556196B1 true EP2556196B1 (en) 2016-04-06

Family

ID=44541531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11728945.4A Not-in-force EP2556196B1 (en) 2010-04-08 2011-04-07 Method of protecting a soil from erosion

Country Status (5)

Country Link
EP (1) EP2556196B1 (en)
PL (2) PL390948A1 (en)
RS (1) RS54884B1 (en)
SI (1) SI2556196T1 (en)
WO (1) WO2011125044A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109208495A (en) * 2018-09-11 2019-01-15 西南交通大学 A kind of Boundary adaptation support system for flexible structure impact test

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EP2419565B1 (en) * 2009-04-15 2018-06-13 TenCate Grass Holding B.V. Method for forming an artificial grass layer and artificial grass product for use therein
NL1038310C2 (en) 2010-10-15 2012-04-17 Hugo Vries METHOD FOR FORMING A SOIL-COVERING LAYER AND SOUND-SHAPED-COATING LAYER
JP2013249660A (en) * 2012-06-01 2013-12-12 Railway Technical Research Institute Reinforcement method and reinforcement structure for earth retaining wall
JP6543473B2 (en) * 2015-01-22 2019-07-10 日本植生株式会社 Lawn protection structure and grass protection method
JP2016154517A (en) * 2015-02-26 2016-09-01 日本植生株式会社 Turf protective structure and turf protective technique
CN104928996B (en) * 2015-06-24 2016-09-21 中铁第四勘察设计院集团有限公司 Railway light soil side broad way based structures
RU2685192C1 (en) * 2018-06-26 2019-04-16 Федеральное государственное бюджетное образовательное учреждение высшего образования Кабардино-Балкарский государственный аграрный университет им. В.М. Кокова (ФГБОУ ВО Кабардино-Балкарский ГАУ) Gabion mattress with flexible construction
CN109440788A (en) * 2018-11-16 2019-03-08 安徽国祯环境修复股份有限公司 A kind of surface mine rock side slope stereo ecological restorative procedure
JP7358089B2 (en) * 2019-06-28 2023-10-10 株式会社カネカ Lightweight embankment structure and lightweight embankment manufacturing method

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN109208495A (en) * 2018-09-11 2019-01-15 西南交通大学 A kind of Boundary adaptation support system for flexible structure impact test

Also Published As

Publication number Publication date
PL390948A1 (en) 2011-10-10
SI2556196T1 (en) 2016-08-31
WO2011125044A3 (en) 2012-03-01
PL2556196T3 (en) 2016-10-31
EP2556196A2 (en) 2013-02-13
WO2011125044A2 (en) 2011-10-13
RS54884B1 (en) 2016-10-31

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