US20200248426A1 - Retaining Wall with Reinforced Soil - Google Patents

Retaining Wall with Reinforced Soil Download PDF

Info

Publication number
US20200248426A1
US20200248426A1 US16/481,941 US201716481941A US2020248426A1 US 20200248426 A1 US20200248426 A1 US 20200248426A1 US 201716481941 A US201716481941 A US 201716481941A US 2020248426 A1 US2020248426 A1 US 2020248426A1
Authority
US
United States
Prior art keywords
facing
embankments
reinforced soil
grid
excavation faces
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.)
Pending
Application number
US16/481,941
Inventor
Donatella Palma
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.)
Geoflum Engineering Srl
Original Assignee
Geoflum Engineering Srl
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 to IT102016000127800 priority Critical
Priority to IT102016000127800A priority patent/IT201600127800A1/en
Application filed by Geoflum Engineering Srl filed Critical Geoflum Engineering Srl
Priority to PCT/IT2017/050004 priority patent/WO2018142433A1/en
Assigned to GEOFLUM ENGINEERING S.R.L. reassignment GEOFLUM ENGINEERING S.R.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PALMA, Donatella
Publication of US20200248426A1 publication Critical patent/US20200248426A1/en
Pending legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/02Retaining or protecting walls
    • E02D29/0225Retaining or protecting walls comprising retention means in the backfill
    • E02D29/0241Retaining or protecting walls comprising retention means in the backfill the retention means being reinforced earth elements
    • 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
    • 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
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/02Retaining or protecting walls
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/02Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic specially adapted for sustaining vegetation or for accommodating plants ; Embankment-type or crib-type noise barriers; Retaining walls specially adapted to absorb or reflect noise
    • E01F8/027Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic specially adapted for sustaining vegetation or for accommodating plants ; Embankment-type or crib-type noise barriers; Retaining walls specially adapted to absorb or reflect noise with external support, e.g. wall facing
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/18Making embankments, e.g. dikes, dams
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00Geometrical or physical properties
    • E02D2200/13Geometrical or physical properties having at least a mesh portion
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0084Geogrids
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00Miscellaneous
    • E02D2600/20Miscellaneous comprising details of connection between elements

Abstract

The invention is applicable in the field of retaining structures, known as “reinforced soil. More specifically, it refers to a facing element for reinforced soil structures and excavation faces and to a structure for reinforcing slope and excavation faces made with the facing element provided for in the present invention. The facing element for reinforced soil structures and excavation faces provided for in the present invention is made of a natural origin material, composite, biological or synthetic, for example a biopolymer such as polylactic acid 100 percent genuine (PLA) or polylactic acid bonded with other elements (composite PLA), composite with a fibre material containing cellulose, such as WPC wood, or natural wood.

Description

  • The invention is applicable in the field of retaining structures, known as “reinforced soil”, and, more specifically, it refers to a structure for reinforcing slope, embankments and excavation faces, made up of a facing element that is made of a natural and biodegradable material, and a reinforcement element placed in horizontal layers, consisting of a double twisted wire mesh and/or a synthetic geogrid, possibly combined with an anti-erosion component.
  • “The reinforced soil” is an engineering solution which allows to combine the soil features with those of the reinforcing elements so obtaining a composite structure capable of resisting to tensile stress so expanding the scope of earthworks. Reinforced soil structures and their applications currently represent a key point in the field of the geotechnical engineering because they make it possible to reinforce the soil structure while respecting the natural and environmental aspects of the sites.
  • Reinforced soil structure applies to several areas, as for example road and railway infrastructures, soil protection, mitigation of the hydrogeological instability, hydraulic constructions, river works or rockfall protection works, bridge abutments retaining walls, green elements for street furniture and industrial complexes, noise barriers.
  • Reinforced soil walls or embankments bring wider benefits than the traditional gravity retaining walls or reinforced concrete retaining walls, mainly because they imply a simple technique which does not need any specialised equipment or staff. For doing this works it is in fact only necessary to use an excavator, a compactor and little skilled labour. It is furthermore possible to easily construct very high retaining works able to take significant deformations before reaching their serviceability limit state, so needing no deep foundations and so being particularly suitable for stabilizing landslides. If compared to the rigid concrete structures, they can better bear earthquakes, dynamic traffic loads and impacting loads on them. Using reinforced soil instead of a traditional reinforced concrete wall has a lower environmental impact, especially in consideration of the green grass growing on the front side, and makes it possible to use filling material collected right there as a result of excavation, so considerably reducing the construction costs. As is well known, reinforced soil structures are made of three elements:
      • a reinforcing element (usually a geogrid or an hexagonal double twisted wire mesh, having different levels of corrosion protection)
      • a facing element (usually a welded wire steel mesh having a variable spacing and cross section diameter usually about 7 to 8 millimetres, mostly having no corrosion protection, combined with a natural or synthetic anti-erosion component
      • structural soil (that is the filling material of the structure)
  • Though widely used, this standard type of reinforced structure has got some drawbacks. One of them is the risk of soil pollution due to the degradation and corrosion of the metallic material making up the facing element. This also applies to the zinc-coated facing elements which nonetheless release harmful particles of rust into the soil, though later than the classic black facing elements (without zinc-coating).
  • It is worth considering that many countries have laws which forbid (or guidelines suggesting to avoid) the use of steel in certain areas, such as for example some natural parks, rivers and seas, areas in which slowly it will no longer be possible to use the reinforced earth technique, as it is known today, notwithstanding the aforementioned advantages.
  • Accordingly, in consideration of the growing worldwide trend towards maximising the respect for the environment and reducing the various forms of pollution, the principal aim of the present invention is to provide a reinforced soil structure, embankments and excavation faces comprising a facing element made of a biodegradable and natural origin material in order to avoid the risk of soil and groundwater pollution deriving from the steel degradation and corrosion (the systems currently in use include in fact facing elements, connecting parts and stiffening elements made of iron).
  • Another aim of the present invention is to provide a structure for reinforced soil and excavation faces comprising a facing element, made of natural and biodegradable material, which can preserve the initial shape of the work even after the facing element progressive biodegradation.
  • A further aim of the invention is to provide a structure for reinforced soil and excavation faces which can be quickly sited and laid and which can be done by unskilled staff.
  • Through the present invention the so far described (and further) aims are achieved; they are hereinafter illustrated in a preferred embodiment, but further improvements are still possible, by means of the attached drawings which show:
  • FIG. 1, an axonometric view of the facing element provided for in the present invention;
  • FIG. 2, an axonometric view of a first embodiment of a retaining structure including a facing element provided for in the present invention;
  • FIG. 1 illustrates the facing element referenced in the present invention in a first embodiment. The facing element, indicated as a whole with the reference number 1, is made of natural origin and biodegradable material. More specifically, said material may be a composite, biological or natural origin material, or, alternatively, synthetic material or a biopolymer.
  • The facing element 1 is therefore biodegradable and the material which it is made of can also render it suitably rigid, so that the proper shape of the external face of the work is assuredly preserved. If the facing element 1 is made of a natural biological material, the latter is a unique natural origin element naturally occurring in the form used, for example wood.
  • Alternatively, if the natural origin material is made of a synthetic one deriving from natural elements, it is a biopolymer. A biopolymer shall be understood as a synthetic material, in most cases biodegradable and non-toxic, obtained from renewable natural sources, either produced from biological systems (plants, animals, microorganisms) or chemically synthesized from molecules of biological origin (sugars, starch, oils, fats). In a first embodiment, the biopolymer making the facing element 1 is polylactic acid 100 percent genuine (PLA) or, alternatively, bonded with other natural elements.
  • Furthermore, if the natural origin material is a composite one, the latter shall be understood as any material variously obtained by combining in different percentages elements of natural origin (synthesized and non-synthesized) with other elements which improve the properties of said materials. In another embodiment, the material of the facing element 1 may be a fibre composite material containing cellulose, as for example WPC wood, or a composite PLA, made of PLA bonded with other elements in different percentages.
  • As to the shape of the facing element 1, in a first embodiment it is made of a rectangular grid 2, having for example a 2 metres frontal width, so that it can be easily shaped into a curved frame, whereas the commonly known facing elements usually have a 3 to 4 metres width. As an alternative, the grid 2 may have a thickened square shape or an oval shape, like a river stone.
  • In a different embodiment of the invention, the facing element 1 includes a secondary grid 3—generally smaller in size than the grid 2—hinged to the grid 2 in correspondence of its side 21. Grids 2 and 3 are reciprocally hinged by means of binding elements 4 made of a suitably resistant string or natural fibre cord, or other equivalent means, as for example a series of rings, suitable for fastening the grid 2 to the grid 3 in correspondence of the side 21 and for allowing both grids to freely rotate around the axis defined by side 21. A different embodiment includes the use of clatches between grids 2 and 3. Another embodiment involves the use of tightening brackets 5 to be interposed between grid 2 and 3. As a consequence, the tightening brackets 5 make it possible to rapidly set and keep the designed inclination of the work planned for the facing element. In a first embodiment the tightening brackets 5 have a triangular section and are made of the same natural—composite or biological—material of the facing element 1, namely of the grids 2 and 3. The tightening brackets 5 are fastened to the grid 2 through suitable means 6, for example rings, binding elements or clips, and they are secured to the soil and/or to the secondary grid 3 by means of stakes 7.
  • In a different embodiment spacer devices (or struts) are included as an alternative to the tightening brackets 5, said spacers having a length suitable for rapidly setting and keeping the designed inclination of the facing element.
  • All that is outlined above clearly shows that the facing element 1 does not include any steel parts, generally used in the known facing elements, because the facing element 1, any tightening brackets 5 (or any struts), the linking elements 4, the fastening means 6 and the stakes 7 are all made of biodegradable material. Furthermore, considering that the facing element is a formwork to be only used for shaping the work and not having any structural purpose, it is actually not necessary to aim at a higher resistance deriving from the use of a metallic material; lower resistance materials are therefore fittingly used as long as they are suitably rigid in order to keep the soil during the spreading and compaction phases and to help to hold the front anti-erosion element up to when vegetation grows up. From that moment onwards, the facing element no longer has any purpose.
  • Lastly, when biodegradation of the facing element 1 starts, the reinforcing structure will keep its initial shape, which will be overtime ensured by the structural reinforcements. From the comparison between the facing element provided for in the present invention and removable formwork soil reinforcement techniques, the latter involve the use of the formwork only during the construction operations in order to shape the work and it is then rapidly removed before constructing the upper reinforcing layer. This happens because the same formwork is used more than once and the use of iron is avoided. This technique is much slower than the one using a non-removable welded steel mesh formwork in terms of the extent of work surface done in a day and it also needs at least two types of highly specialised staff: the material positioner and the excavator operator, who carefully removes the formwork trying to avoid deforming or damaging the structure. This technique has been almost completely abandoned in recent years because of its expensive labour requirements and it has been replaced by the technique using a non-removable welded steel mesh formwork, which involves the additional cost of the steel but also a strong labour reduction and which nonetheless has the pollution related disadvantages as above indicated. Therefore, the use of a facing element 1 made of natural, composite, synthetic or biological material firstly does not generate the soil pollution, it has reduced construction times and it does not need any highly specialised staff. The grid 2 and the secondary grid 3, as shown in FIG. 1, have standard size square meshes. In a different embodiment it is anyway possible to use a facing element 1 including grids 2 and 3 having thickened meshes so that it is not necessary to use an anti-erosion bionet or mat combined with the facing element 1. Costs are this way reduced and since it is less necessary to use metallic clips in order to join the various elements, corrosion and the release of pollutants into soil are restricted.
  • As it can be seen in FIG. 2, the facing element 1 is used in the construction of structures 100 for reinforced soil and excavation faces. In a first embodiment a structure 100 for reinforced soil and excavation faces includes a facing element 101, an anti-erosion net 102 and a reinforcing element 103, the latter being alternatively made of a double twisted wire mesh or a geo-synthetic net.
  • The facing element 101, the anti-erosion net 102 (if any) and the reinforcing net can be positioned as it follows: facing element—anti-erosion net—reinforcing net or, rather, reinforcing net—facing element—anti-erosion net, or in any different sequence. All will depend on the landscape visual requirements as chosen by the work designer, but it will change nothing in terms of reducing soil pollution.
  • The structure 100 for soil reinforcement, made as described above, may be found in a pre-assembled condition so as to facilitate the installation operations by unskilled staff and the folding lines are made in order to help transporting and unfolding said structure in the construction site. By means of the invention here provided for, it is possible to overcome the difficulties deriving from the currently known pre-assembled elements having a fixed height, which means a variation in the height of the reinforced soil layer according to the change of the external facing element inclination, since the facing element is in a standard size welded steel mesh. The facing element in natural biodegradable material as here proposed may be differently sized.
  • Finally, as for joining distinct structures 100 so as to make a single reinforcing structure, in the present invention all the lateral junctions are eliminated. More specifically, each facing element 100, having a standard width, is assembled to the reinforcing element 103, having a greater width or at least a lateral extension 104, the latter being as wide as the length of 1 or 2 meshes (for a double twisted wire mesh) or at least 10 to 15 centimetres wide (for a geogrid). It is so possible to join distinct structures by simply overlapping two adjacent elements. In this case elements are joined due to the resistance transfer among them, without interfering with the thickness of the facing element 1 and without having therefore to secure each mesh by means of steel clips or steel wire along the entire length of the reinforcing elements. These are often overlooked details because they take a long time to be performed, so elements are left with no junction. If two adjacent elements do not come in direct contact, there will be no resistance progression and no strain transfer. Each single element will separately work and will not co-operate with the adjacent elements. This is something which does not benefit the final result of the whole work. The solution as here proposed much facilitates the production process and it can ensure the resistance continuity and the strain transfer among the various reinforcing elements. It is worth considering that the phases of material filling and compaction are executed by heavy means such as (crawler type) excavators and compact rollers which often cause the reinforcement elements to be moved by few millimetres if they are not properly joined, so rapidly losing the lateral co-operation effect. Overlapping 1 or 2 meshes (for a double twisted wire mesh) or at least 10 to 15 centimetres (for a geogrid) therefore ensures the strain transfer among the elements since, even though they are moved by few millimetres during the installation operations, they lay several centimetres overlapped.

Claims (11)

1. Facing element (1) for reinforced soil structures, embankments and excavation faces made of a biodegradable material, wherein the material being a composite, biological or synthetic material having natural origin, wherein the facing element (1) is a grid (2).
2. Facing element for reinforced soil structures, embankments and excavation faces according to claim 1, in which the biodegradable material is pure polylactic acid or polylactic acid bonded with other elements.
3. Facing element for reinforced soil structures, embankments and excavation faces according to claim 1, in which the biodegradable material is wood.
4. Facing element for reinforced soil structures, embankments and excavation faces according to claim 1, in which the biodegradable material is a fibre composite material containing cellulose.
5. Facing element for reinforced soil structures, embankments and excavation faces according to claim 1, in which the facing element (1) further includes a second grid (3) which is smaller in size than the grid (2), and wherein the grid (2) and the second grid (3) being reciprocally hinged in correspondence of a side (21).
6. Facing element for reinforced soil structures, embankments and excavation faces according to claim 1, in which the facing element (1) further includes a second grid (3) , the grid (2) and the second grid (3) being reciprocally joined by interlocking elements in correspondence of a side(21).
7. Facing element for reinforced soil structures, embankments and excavation faces according to claim 5 , further comprising tightening brackets (5), said brackets (5) having a triangular shape and being fastened to the grid (2) and to the secondary grid (3) so as to keep the designed inclination of the work planned for the facing element, said brackets (5) being made of the same natural material as the facing element (1).
8. Facing element for reinforced soil structures, embankments and excavation faces according to claim 5, further comprising spacer devices having a length suitable for keeping the designed inclination of the facing element (1).
9. Structure for reinforced soil, embankments and excavation faces (100) comprising a facing element (101) as claimed in claim 1 and a strengthening net (103) having a greater width or at least a lateral extension (104), said elements being reciprocally fastened so as to set up a single reinforcing structure for soil, embankments and excavation faces.
10. Structure for reinforced soil, embankments and excavation faces (100) according to claim 9, in which the reinforcement element (103) is a double twisted wire mesh.
11. Structure for reinforced soil, embankments and excavation faces (100) according to claim 9, in which the reinforcement element (103) is a geo-synthetic material.
US16/481,941 2017-01-31 2017-12-12 Retaining Wall with Reinforced Soil Pending US20200248426A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT102016000127800 2017-01-31
IT102016000127800A IT201600127800A1 (en) 2017-01-31 2017-01-31 Facing for reinforcement structures for soils, embankments and excavation fronts.
PCT/IT2017/050004 WO2018142433A1 (en) 2017-01-31 2017-12-12 Retaining wall with reinforced soil

Publications (1)

Publication Number Publication Date
US20200248426A1 true US20200248426A1 (en) 2020-08-06

Family

ID=58609784

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/481,941 Pending US20200248426A1 (en) 2017-01-31 2017-12-12 Retaining Wall with Reinforced Soil

Country Status (5)

Country Link
US (1) US20200248426A1 (en)
EP (1) EP3577280A1 (en)
CN (1) CN110234813A (en)
IT (1) IT201600127800A1 (en)
WO (1) WO2018142433A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11071256B2 (en) 2017-04-17 2021-07-27 Grostructures Llc Earth wall having a pocket structure for receiving vegetation

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109619A (en) * 1982-12-13 1984-06-25 Toshio Hiratsuka Fence for sheathing
IT1256489B (en) * 1992-12-24 1995-12-07 Augusto Bazzocchi INTERNALLY REINFORCED GEOTECHNICAL STRUCTURE WITH VISIBLE SURFACE SUITABLE FOR FORMING SCARP, WALLS AND ANTIEROSION SYSTEMS.
JPH11280074A (en) * 1998-03-31 1999-10-12 Nisshoku Corp Biodegradable net and vegetation basic body and tree planting construction method
ITBO20020596A1 (en) * 2002-09-19 2004-03-20 Maccaferri Spa Off Improved element for the construction of land covering, containment and reinforcement structures.
EP1424418A1 (en) * 2002-11-27 2004-06-02 Polyfelt Gesellschaft m.b.H. Structured geotextiles and process for their production
JP4703428B2 (en) * 2006-02-17 2011-06-15 旭化成せんい株式会社 How to prevent red soil runoff
WO2008097523A1 (en) * 2007-02-06 2008-08-14 The Tensar Corporation Integral polyethylene terephthalate grids, the method of manufacture, and uses thereof
KR100946730B1 (en) * 2009-08-18 2010-03-12 남택욱 A vegetation mat environmentally frienfly and greening method using the same
CN202672187U (en) * 2012-07-18 2013-01-16 湖南省交通规划勘察设计院 Tubular column type reinforced gabion retaining wall
PL3013496T3 (en) * 2013-06-27 2019-01-31 Pfeifer Isofer Ag Net for securing rocks and rock slopes
CN103485363B (en) * 2013-10-10 2015-09-30 海南恒鑫土木工程建设有限公司 Three-dimensional continuous frame formula reinforced concrete structure retaining wall
CN204238239U (en) * 2014-11-17 2015-04-01 中大建设有限公司 Pile foundation prestressd anchor cable height wall-retaining structure
CN105040727A (en) * 2015-07-02 2015-11-11 中国地质科学院探矿工艺研究所 Integral reinforced retaining wall structure for landslide prevention and treatment and construction method
KR101688778B1 (en) * 2016-07-28 2016-12-22 김제용 A vegetation gavion including a eco-mat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11071256B2 (en) 2017-04-17 2021-07-27 Grostructures Llc Earth wall having a pocket structure for receiving vegetation

Also Published As

Publication number Publication date
CN110234813A (en) 2019-09-13
WO2018142433A1 (en) 2018-08-09
EP3577280A1 (en) 2019-12-11
IT201600127800A1 (en) 2018-07-31

Similar Documents

Publication Publication Date Title
US20200248426A1 (en) Retaining Wall with Reinforced Soil
KR100822265B1 (en) Revetment structure using natural stones and method for constructing revetment structure using the same
KR101231040B1 (en) Vegetative panel and construction and repair method retaining wall for planting using this
JP5500903B2 (en) Retaining wall and how to construct a retaining wall
CN210482362U (en) Assembled rigid and flexible combined elastic anti-seismic reinforced earth retaining wall
JP2014029100A (en) Retaining wall structure
KR20160128560A (en) Reinforced earth retaining wall with blocks of structure frame and wire mesh
KR100889257B1 (en) Precast concrete facing panel using greening of retaining panel's front
KR20160001368A (en) Wire cylinder type retaining wall and operation thereof
JP3961520B2 (en) Reinforced earth structure
JP5457210B2 (en) Steel frame for sabo structure, sabo structure constructed thereby, and construction method thereof
KR101258043B1 (en) Eco-friendly reinforced retainaing wall and construction method thereof
US20210017731A1 (en) Geosynthetic reinforced wall panels comprising soil reinforcing hoop members and retaining wall system formed therewith
KR101149038B1 (en) Reinforcement construction method of poor subsoil by horizontal geogrid and vertical geogrid
JP2006328720A (en) Reinforced earth retaining wall
KR101787368B1 (en) A Retaining wall using Precast pile and Construction method thereof
KR101071595B1 (en) Reinforcement member for reinforced retainaing wall
KR100641265B1 (en) Prefabricated wood material retaining wall structure and process method thereof
Mehta et al. A comparative review on Reinforced Soil and Reinforced Soil Structures
KR101074267B1 (en) A revetment
KR20100059380A (en) Retaining wall making method using the wire mesh bag
KR20120006284U (en) retainig ecology space frame
KR200232630Y1 (en) Structure for Sinking Frame in Reinforced Earth Retaining-Wall
KR20090008795A (en) Reinforced earth retaining-wall with scaffolding structure
KR200232628Y1 (en) Coupling Structure of Vertical Steel Bar for Reinforced Earth Retaining-Wall Frame

Legal Events

Date Code Title Description
AS Assignment

Owner name: GEOFLUM ENGINEERING S.R.L., ITALY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PALMA, DONATELLA;REEL/FRAME:049900/0532

Effective date: 20190725