WO2011125044A2 - Method of protecting a soil from erosion and equipment set for such protection - Google Patents

Method of protecting a soil from erosion and equipment set for such protection Download PDF

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Publication number
WO2011125044A2
WO2011125044A2 PCT/IB2011/051507 IB2011051507W WO2011125044A2 WO 2011125044 A2 WO2011125044 A2 WO 2011125044A2 IB 2011051507 W IB2011051507 W IB 2011051507W WO 2011125044 A2 WO2011125044 A2 WO 2011125044A2
Authority
WO
WIPO (PCT)
Prior art keywords
geotextile
geogrid
spatial
anchors
equipment set
Prior art date
Application number
PCT/IB2011/051507
Other languages
French (fr)
Other versions
WO2011125044A3 (en
Inventor
Boleslaw Dutkiewicz
Feliks Gajos
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 SI201130883A priority Critical patent/SI2556196T1/en
Priority to EP11728945.4A priority patent/EP2556196B1/en
Priority to RS20160485A priority patent/RS54884B1/en
Publication of WO2011125044A2 publication Critical patent/WO2011125044A2/en
Publication of WO2011125044A3 publication Critical patent/WO2011125044A3/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/20Securing of slopes or inclines
    • E02D17/202Securing of slopes or inclines with flexible securing means
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/20Securing 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 was 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. Then this geotextile is covered by a spatial geogrid with 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 filled with humus.
  • a biodegradable geotextile or a geosyn- thetic geotextile can be used as the geotextile.
  • percentage of seeds in the geotextile ranges from 10% to 20% of weight.
  • a spatial geogrid which is made of a set of plastic strips of thickness ranging from 1 to 7 mm.
  • each of the stripes is permanently connected to the adjacent strip at regular distances, advantageously every 340 mm.
  • 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.
  • An equipment set for protection a soil from erosion consists of a geotextile of a basis weight of 200 to 500 g/m 2 and containing plant seeds in its structure.
  • the set consists also of a spatial geogrid with spatial cells of sizes ranging from 200 to 500 cm 2 and with a height of side walls ranging from 20 to 50 mm, as well as of anchors.
  • the geotextile of the equipment set according to the invention may be a biodegradable geotextile or a geosynthetic geotextile.
  • the percentage of seeds in the geotextile ranges from 10% to 20% of weight.
  • the spatial geogrid consists of a set of plastic strips of thickness ranging from 1 mm to 7 mm. Moreover, each of the strips is permanently connected to the adjacent strip at regular distances, advantageously every 340 mm.
  • the plastic strips forming the geogrid are perforated.
  • the equipment set according to the invention contains from 2 to 3 anchors for every two square meters of a soil to be protected.
  • 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 accorodfng 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.
  • 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 6.
  • 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 00 m 2 of a typical embankments contains approximately 10 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 .

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

Abstract

According to the method on a surface to be protected is placed a geotextile (4) of a basis weight of 200 to 500 g/m2 and containing plant seeds (5) in its structure. Then the geotextile (4) is covered by a spatial geogrid (6) with spatial cells (9) of the sizes ranging from 200 to 500 cm2 and with a height of side walls (7) ranging from 20 to 50 mm. Next the spatial geogrid (6) is fixed to the ground by the anchors (10,1 1 ) and filled with humus (12). Te equipment set for implementing such method consists of a geotextile (4) with basis weight adjusted to the protected surface and of spatial geogrid (6) adjusted to the geotextile as well as of proper number of anchors (10,11).

Description

METHOD OF PROTECTING A SOIL FROM EROSION
AND EQUIPMENT SET FOR SUCH PROTECTION
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.
Disclosure of Invention
The purpose of the invention was 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/m2 and containing plant seeds in its structure. Then this geotextile is covered by a spatial geogrid with 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 filled with humus.
In the method according to the invention a biodegradable geotextile or a geosyn- thetic geotextile can be used as the geotextile. In variant of the method according to the invention percentage of seeds in the geotextile ranges from 10% to 20% of weight.
In another variant of the method according to the invention is used a spatial geogrid which is made of a set of plastic strips of thickness ranging from 1 to 7 mm. In the set each of the stripes is permanently connected to the adjacent strip at regular distances, advantageously every 340 mm.
In next variant of the method according to the invention the plastic strips forming the geogrid are perforated.
fn 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.
An equipment set for protection a soil from erosion consists of a geotextile of a basis weight of 200 to 500 g/m2 and containing plant seeds in its structure. The set consists also of a spatial geogrid with spatial cells of sizes ranging from 200 to 500 cm2 and with a height of side walls ranging from 20 to 50 mm, as well as of anchors. The geotextile of the equipment set according to the invention may be a biodegradable geotextile or a geosynthetic geotextile.
In one variant of the equipement set according to the invention the percentage of seeds in the geotextile ranges from 10% to 20% of weight.
In another variant of the equipement set according to the invention the spatial geogrid consists of a set of plastic strips of thickness ranging from 1 mm to 7 mm. Moreover, each of the strips is permanently connected to the adjacent strip at regular distances, advantageously every 340 mm.
In another variant of the equipment set according to the invention the plastic strips forming the geogrid are perforated.
In another variant of the equipment set according to the invention it contains from 2 to 3 anchors for every two square meters of a soil to be protected.
In yet another variant of the equipment set 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 accorodfng 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. Used 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. 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 6. 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 00 m2 of a typical embankments contains approximately 10 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

Patent claims
1. A method of protecting a soil from erosion, relying on fixing a flora vegetation supporting mats to the surface of a soil to be protected and covering the mats with humus, characterized in that on the surface to be protected is placed a geotextile (4) of a basis weight of 200 to 500 g/m2 and containing plant seeds (5) in its structure, then the geotextile (4) is covered by a spatial geogrid (6) with spatial cells (9) of the sizes ranging from 200 to 500 cm2 and with a height of side walls (7) ranging from 20 to 50 mm and next the spatial geogrid (6) is fixed to the ground by anchors (10,1 1) and filled with humus (12).
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 percentage of seeds (5) in the geotextile ranges from 10% to 20% of weight.
5. The method according to one of Claims 1 to 4, characterized by using a spatial geogrid (6) which is made of a set of plastic strips (7) of thickness ranging from 1 to 7 mm, and in which each of the stripes (7) is permanently connected (8) to the adjacent strip (7) at regular distances, advantageously every 340 mm.
6. The method according to one of Claims 1 to 5, characterized in that the strips (7) forming the geogrid (6) are perforated.
7. The method according to one of Claims 1 to 6, characterized in that for every two square meters of the geogrid (6) from 2 to 3 anchors (1 1) are used.
8. The method according to one of Claims 1 to 7, characterized in that the anchors (10, 11) have a form of a rod bent at an angle of 80 degrees, advantageously of a rod of a diameter of 8 mm.
9. An equipment set for protection a soil from erosion, characterized in that it consists of a geotextile (4) of a basis weight of 200 to 500 g/m2 and containing plant seeds (5) in its structure, of a spatial geogrid (6) with spatial cells (9) of sizes ranging from 200 to 500 cm2 and with a height of side walls (7) ranging from 20 to 50 mm, as well as of anchors (10, 1 1 ).
10. The equipment set according to Claim 9, characterized in that the geotextile (4) is a biodegradable geotextile.
1 1. The equipment set according to Claim 9, characterized in that the geotextile (4) is a geosynthetic geotextile.
12. The equipment set according to one of the Claims from 9 to 11 , characterized in that percentage of seeds (5) in the geotextile (4) ranges from 10% to 20% of weight.
13. The equipment set according to one of the Claims 9 to 12, characterized in that the spatial geogrid (6) consists of a set of plastic strips (7) of thickness ranging from 1 mm to 7 mm and each of the strips (7) is permanently connected (8) to the adjacent strip (7) at regular distances, advantageously every 340 mm.
14. The equipment set according to one of Claims 9 to 13, characterized in that the strips (7) forming the geogrid (6) are perforated.
15. The equipment set according to one of Claims 9 to 14, characterized in that it contains from 2 to 3 anchors (1) for every two square meters of a soil to be protected.
16. The equipment set according to one of Claims from 9 to 15, characterized in that the anchors (10, 1 1) have a form of a rod bent at an angle of 180 degrees, advantageously of a rod of a diameter of 8 mm.
PCT/IB2011/051507 2010-04-08 2011-04-07 Method of protecting a soil from erosion and equipment set for such protection WO2011125044A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI201130883A SI2556196T1 (en) 2010-04-08 2011-04-07 Method of protecting a soil from erosion
EP11728945.4A EP2556196B1 (en) 2010-04-08 2011-04-07 Method of protecting a soil from erosion
RS20160485A RS54884B1 (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
PLP.390948 2010-04-08
PL390948A PL390948A1 (en) 2010-04-08 2010-04-08 Method for land protection against erosion and kit for this type of protection

Publications (2)

Publication Number Publication Date
WO2011125044A2 true WO2011125044A2 (en) 2011-10-13
WO2011125044A3 WO2011125044A3 (en) 2012-03-01

Family

ID=44541531

Family Applications (1)

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

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 (8)

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Publication number Priority date Publication date Assignee Title
US20120301637A1 (en) * 2009-04-15 2012-11-29 De Vries Hugo Method for Forming an Artificial Grass Layer and Artificial Grass Product for Use Therein
JP2013249660A (en) * 2012-06-01 2013-12-12 Railway Technical Research Institute Reinforcement method and reinforcement structure for earth retaining wall
CN104928996A (en) * 2015-06-24 2015-09-23 中铁第四勘察设计院集团有限公司 Light soil side wide roadbed structure for railway
JP2016131557A (en) * 2015-01-22 2016-07-25 日本植生株式会社 Lawn protective structure and lawn 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
US10011964B2 (en) 2010-10-15 2018-07-03 Greenfields B.V. Method for forming a ground-covering layer, and thus formed ground-covering layer
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
JP2021008727A (en) * 2019-06-28 2021-01-28 株式会社カネカ Lightweight banking structure, and production method of lightweight banking

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CN109208495B (en) * 2018-09-11 2019-07-16 西南交通大学 A kind of Boundary adaptation support system for flexible structure impact test
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

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120301637A1 (en) * 2009-04-15 2012-11-29 De Vries Hugo Method for Forming an Artificial Grass Layer and Artificial Grass Product for Use Therein
US9388536B2 (en) * 2009-04-15 2016-07-12 Greenfields B.V. Method for forming an artificial grass layer and artificial grass product for use therein
US10011964B2 (en) 2010-10-15 2018-07-03 Greenfields B.V. Method for forming a ground-covering layer, and thus formed ground-covering layer
JP2013249660A (en) * 2012-06-01 2013-12-12 Railway Technical Research Institute Reinforcement method and reinforcement structure for earth retaining wall
JP2016131557A (en) * 2015-01-22 2016-07-25 日本植生株式会社 Lawn protective structure and lawn 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
CN104928996A (en) * 2015-06-24 2015-09-23 中铁第四勘察设计院集团有限公司 Light soil side wide roadbed structure for railway
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
JP2021008727A (en) * 2019-06-28 2021-01-28 株式会社カネカ Lightweight banking structure, and production method of lightweight banking
JP7358089B2 (en) 2019-06-28 2023-10-10 株式会社カネカ Lightweight embankment structure and lightweight embankment manufacturing method

Also Published As

Publication number Publication date
EP2556196A2 (en) 2013-02-13
PL2556196T3 (en) 2016-10-31
EP2556196B1 (en) 2016-04-06
WO2011125044A3 (en) 2012-03-01
PL390948A1 (en) 2011-10-10
SI2556196T1 (en) 2016-08-31
RS54884B1 (en) 2016-10-31

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