EP1524371A2 - Kanalauskleidungsbauteil und Herstellungsverfahren - Google Patents

Kanalauskleidungsbauteil und Herstellungsverfahren Download PDF

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Publication number
EP1524371A2
EP1524371A2 EP04425418A EP04425418A EP1524371A2 EP 1524371 A2 EP1524371 A2 EP 1524371A2 EP 04425418 A EP04425418 A EP 04425418A EP 04425418 A EP04425418 A EP 04425418A EP 1524371 A2 EP1524371 A2 EP 1524371A2
Authority
EP
European Patent Office
Prior art keywords
geomat
prefabricated
prefabricated element
soil
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04425418A
Other languages
English (en)
French (fr)
Other versions
EP1524371A3 (de
EP1524371B1 (de
Inventor
Marco Caldani
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.)
Caldani Piante Srl
Original Assignee
Caldani Piante 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
Application filed by Caldani Piante Srl filed Critical Caldani Piante Srl
Publication of EP1524371A2 publication Critical patent/EP1524371A2/de
Publication of EP1524371A3 publication Critical patent/EP1524371A3/de
Application granted granted Critical
Publication of EP1524371B1 publication Critical patent/EP1524371B1/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
    • E02B—HYDRAULIC ENGINEERING
    • E02B5/00—Artificial water canals, e.g. irrigation canals
    • E02B5/02—Making or lining canals
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
    • E02B3/126—Flexible prefabricated covering elements, e.g. mats, strips mainly consisting of bituminous material or synthetic resins
    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2/00—General structure of permanent way

Definitions

  • the present invention relates to a channel lining structure for protecting road gutters or diversion ditches.
  • the invention also relates to a method for the installation of this lining structure.
  • the bed comprises the carriageway or ballast and, in the case of a sunken road, the "diversion ditch".
  • This diversion ditch is positioned to protect the roadbed and serves to collect the rainwater flowing from the top to the base of an embankment, as shown in Figure 1, or on the top of the slope for roads in cuttings, as shown in Figure 2, with particular reference, purely by way of example and without restrictive intent, to a railbed.
  • the diversion ditch is indicated by F, while the letter C identifies the channel.
  • S which has an appropriate inclination depending on the geotechnical characteristics of the soil and the position of the roadbed with respect to the natural surface level
  • the channel of a gutter or diversion ditch is covered with prefabricated elements of reinforced concrete.
  • An object of the present invention is to provide a lining for channels while providing adequate protection of the slopes.
  • Another object of the invention is to provide a covering for channels and slopes in a simple and inexpensive way.
  • a channel lining structure for a gutter or diversion ditch which includes a prefabricated element forming the base of a channel, having lateral portions generally inclined upward so that they cover the lower portions of the walls of the channel, and an associated "geomat", in other words a mat for covering the soil with an irregularly interlaced loose mesh described more fully below, extending outward from at least one lateral portion of the prefabricated element.
  • a method for installing a channel lining for a gutter or diversion ditch is provided.
  • the channel lining structure includes a prefabricated element 1 and a geomat 2.
  • the prefabricated element 1 is designed to form the base of the recess of a channel, particularly of one adjacent to a bed for a highway, railroad or the like.
  • the prefabricated element can consist of a reinforced concrete section having an electro-welded reinforcing mesh 3 (Figure 4), for example a 20 x 20 cm mesh consisting of 5 mm diameter wires, indicated by the long-dashed lines in Figure 3.
  • the prefabricated element 1 has a base plate 10 and lateral portions 11 and 12.
  • the base plate 10 is shown as flat in Figures 3 and 4, but could also be slightly curved with an upward concavity or could have longitudinal grooves 10', as shown in Figure 5, while the lateral portions 11 and 12 are generally inclined upward to cover the lower portions of the walls of the channel in which the prefabricated element is installed.
  • the base of the prefabricated element has longitudinal grooves 10', these eventually collect soil, allowing the spontaneous growth of vegetation on the bases of said grooves, which improves the appearance of the channel by the plant cover which is formed, thus decreasing the negative environmental impact of the bare concrete structure.
  • the prefabricated element is cleaned by mechanical means in such a way as not to remove the vegetation growing on the bases of the grooves.
  • the bases of the grooves can be filled with soil immediately after the installation of the prefabricated elements, and can then be seeded in a conventional way or hydroseeded.
  • handling elements are provided for the manipulation and installation of the prefabricated elements, the handling elements consisting of removable threaded ring studs fitted in threaded housings sunk into the material of the prefabricated elements.
  • the handling elements consist of substantially semi-annular steel bar elements embedded in the material of the prefabricated elements.
  • the prefabricated element 1 has extension elements on at least one of its lateral portions.
  • this extension element can be made during the manufacture of the prefabricated element 1, by embedding a metal mesh 4.
  • the metal mesh 4 has cells of 5 x 5 cm, made from steel wire preferably having a diameter of 2 mm.
  • the mesh is made to project from the lateral portions 11 and 12 by a suitable amount, as explained below.
  • the mesh 4 is represented in Figures 3 and 4 in solid lines, while the part embedded in the concrete is represented by dotted lines.
  • the geomat 2 can be, for example, a structure consisting of filaments of synthetic materials (high-density polyethylene, polyamide, polypropylene or other material), consisting of fibers entangled in a random way to form a highly deformable layer having a thickness of 10-20 mm.
  • synthetic materials high-density polyethylene, polyamide, polypropylene or other material
  • the geomat can also consist of a set of fine mesh lattices which may be structured, joined together by "stitching".
  • geomats which are used are "MACMAT”, made by the Maccaferri company, and "ENKAMAT 7020” and “ENKAMAT 7010”, made by SEIC Geotecnica.
  • Both types of geomat are characterized by a very high void ratio of more than 90% on average. They do not absorb water, and their mass per unit area varies from 250 to 500 g/m 2 . The tensile strength varies according to the material and the manufacturing procedures, but is generally less than 10 kN/m.
  • geosynthetics in place of the aforementioned geomats, it is possible to use other lattice materials made from synthetic resins, called geosynthetics, normally available on the market, which can fulfill an equivalent function.
  • the geomats 2 are designed to be connected to the metal meshes 4 projecting from the lateral portions 11 and 12 of the prefabricated elements 1 by connector means such as pegs 5 made from metal or other materials, as shown in the figure, in the shape of an inverted U, an inverted L or a T, which can be fixed into the ground.
  • connector means such as pegs 5 made from metal or other materials, as shown in the figure, in the shape of an inverted U, an inverted L or a T, which can be fixed into the ground.
  • the prefabricated elements 1 have front and rear edges 13 and 14 shaped in such a way as to provide a connection by interlocking or adjacent positioning with complementary designs, thus allowing a connection between the various prefabricated elements which is continuous, simple, and prevents slippage of the various elements or their misalignment with each other.
  • This configuration with complementary profiles to allow the interlocking of the elements can be, for example, of the step type, the ramp type, the male and female groove type, or can have any other type of suitable profile indicated in a general way by 15 in Figure 3.
  • the term "rear” denotes the upstream edge with respect to the direction of flow of the water in the channel.
  • the surface to be lined is first leveled and modeled, with the removal of sags, small projections, rubble and branchwood, such as branches, leaves and other vegetable detritus.
  • the leveled surface is then seeded and fertilized if necessary.
  • a trench (not shown in the figures) with a width of at least 50 cm and a depth of 20-30 cm is formed above the slope.
  • a flap measuring approximately 50 cm at the edge of the geomat is placed in the trench, is fixed with iron pegs and is covered with the soil taken from the excavation.
  • the pegs preferably have a minimum diameter of 8 mm.
  • a geomat made from synthetic material (nylon, polypropylene, polyethylene, high-density polyethylene) is spread out along the line of maximum inclination of the slope.
  • the adjacent geomat sheets are positioned in such a way as to overlap each other in the direction of the potential flow of water.
  • the geomat is fixed to the soil with brackets in the form of an inverted U, an inverted L or a T, or with shrubs and/or cuttings, along the overlaps of the various sheets used and in the centers of the sheets.
  • the density of the soil fixing pegs increases with an increase in the inclination of the slope and according to the consistency of the substrate. Generally, one peg per m 2 is sufficient for inclinations of less than 20-30°.
  • the prefabricated elements according to the invention are then installed in succession in the recess of the channel of the diversion ditch or gutter, with portions of metal mesh projecting from at least one of the lateral portions of the prefabricated elements, and the metal mesh is connected to the geomat by means of pegs.
  • shrubs and cuttings can be planted by making L-shaped cuts in the geomat, and the geomat can be filled with agricultural soil. It is also possible to seed the soil under the geomat with a suitable mixture of seeds of selected plant species, and fertilize and irrigate it.
  • the geomat can be filled with ballast and bituminized.
  • the geomat can have a minimum thickness of 8 mm if it is filled with soil and a minimum thickness of 18 mm if it is filled with ballast and bituminized. It is useful for the geomat to have a tensile strength of not less than 2.0 kN/m with a void ratio of not less than 90%.
  • the installation of the prefabricated element and the spreading of the geomat can be carried out at any time of the year. Seeding should preferably be carried out from autumn to spring, while the dry summer periods should be avoided; any planting of shrubby species should take place during the vegetative rest period but not in frosty periods in winter.
  • the mesh projecting from the shaped section according to the invention is preferably provided with a corrosion-proof coating, such as galvanizing treatment, or treatment with any other material capable of resisting oxidation at least for the whole of the period required for the growth of the vegetation.
  • a corrosion-proof coating such as galvanizing treatment, or treatment with any other material capable of resisting oxidation at least for the whole of the period required for the growth of the vegetation.
  • the lining structure according to the invention is applied to all diversion ditches and all gutters of roads and highways, and also those of railroads, for rainwater collection, where these elements are subject to surface erosion and have no plant cover.
  • the prefabricated element made from reinforced concrete serves to impart a regular shape to the channel, enabling the channel to be maintained with mechanical means.
  • Geomats are used to improve the resistance to erosion caused by the impact of rain and run-off water, to provide a surface reinforcement during the period of growth of the vegetation.
  • the advantages of the present invention are numerous.
  • the surface on which the work is performed is immediately covered, both as regards the base of the channel and the slope part, thus providing immediate and lasting protection against surface erosion.
  • the various prefabricated elements can be connected to each other easily by the interlocking of the groove and projection with complementary profiles or the overlapping step.
  • the prefabricated element on the base of the channel allows rapid execution of maintenance and in particular allows the base to be cleaned by mechanical means, without adverse effects on the functionality of the installation or breakage of the geomat.
  • the environmental impact is smaller than that of simple concrete channels, since after the growth of the vegetation the appearance will be identical to that of natural earth channels covered with vegetation, with the difference that when maintenance is carried out there is an advantage in terms of productivity due to the presence of the rigid base. In this way an appropriate compromise is achieved between efficient erosion prevention, technical functionality, maintenance requirements and low environmental impact.
  • the void ratio of the mat is such that herbaceous plants can develop to supplement the mechanical erosion prevention provided by the mat.
  • the soil material lying under the mat is retained, thus preventing its downward drift.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ocean & Marine Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Road Paving Structures (AREA)
  • Catching Or Destruction (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Sewage (AREA)
EP04425418A 2003-10-17 2004-06-08 Kanalauskleidungsbauteil und Herstellungsverfahren Expired - Lifetime EP1524371B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000481A ITRM20030481A1 (it) 2003-10-17 2003-10-17 Struttura di rivestimento di canaletta di cunetta o fosso di guardia e procedimento per la sua posa in opera.
ITRM20030481 2003-10-17

Publications (3)

Publication Number Publication Date
EP1524371A2 true EP1524371A2 (de) 2005-04-20
EP1524371A3 EP1524371A3 (de) 2006-06-28
EP1524371B1 EP1524371B1 (de) 2012-05-09

Family

ID=30131623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04425418A Expired - Lifetime EP1524371B1 (de) 2003-10-17 2004-06-08 Kanalauskleidungsbauteil und Herstellungsverfahren

Country Status (3)

Country Link
EP (1) EP1524371B1 (de)
AT (1) ATE557134T1 (de)
IT (1) ITRM20030481A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2385986C1 (ru) * 2009-02-09 2010-04-10 Василий Петрович Ягин Гидротехнический канал, заглубленный в многолетнемерзлые грунты склона, и способ его создания
RU2385985C1 (ru) * 2009-02-09 2010-04-10 Василий Петрович Ягин Гидротехнический канал на многолетнемерзлых грунтах склона
RU2392376C1 (ru) * 2009-04-15 2010-06-20 Наталья Сергеевна Троян Гидротехнический канал в условиях многолетнемерзлых грунтов склона
JP2019023418A (ja) * 2017-07-21 2019-02-14 有限会社キシムラ 防砂シート敷設構造
CN115025925A (zh) * 2022-06-14 2022-09-09 刘丹 一种水利工程排水结构的防腐处理设备及其工作方法
CN119373145A (zh) * 2024-12-27 2025-01-28 杭州江润科技有限公司 锚杆装配式挡墙封边围堰回填种植土复绿体系及施工方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2106968B (en) * 1981-09-30 1985-01-03 John Kenneth Hoare Anti-erosion device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2385986C1 (ru) * 2009-02-09 2010-04-10 Василий Петрович Ягин Гидротехнический канал, заглубленный в многолетнемерзлые грунты склона, и способ его создания
RU2385985C1 (ru) * 2009-02-09 2010-04-10 Василий Петрович Ягин Гидротехнический канал на многолетнемерзлых грунтах склона
RU2392376C1 (ru) * 2009-04-15 2010-06-20 Наталья Сергеевна Троян Гидротехнический канал в условиях многолетнемерзлых грунтов склона
JP2019023418A (ja) * 2017-07-21 2019-02-14 有限会社キシムラ 防砂シート敷設構造
CN115025925A (zh) * 2022-06-14 2022-09-09 刘丹 一种水利工程排水结构的防腐处理设备及其工作方法
CN119373145A (zh) * 2024-12-27 2025-01-28 杭州江润科技有限公司 锚杆装配式挡墙封边围堰回填种植土复绿体系及施工方法

Also Published As

Publication number Publication date
EP1524371A3 (de) 2006-06-28
ITRM20030481A0 (it) 2003-10-17
EP1524371B1 (de) 2012-05-09
ITRM20030481A1 (it) 2005-04-18
ATE557134T1 (de) 2012-05-15

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