EP0768432A1 - Vorrichtung und Verfahren zur Entwässerung von Boden und Mauern unter Verwendung eines körnigen Materials - Google Patents

Vorrichtung und Verfahren zur Entwässerung von Boden und Mauern unter Verwendung eines körnigen Materials Download PDF

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Publication number
EP0768432A1
EP0768432A1 EP96430014A EP96430014A EP0768432A1 EP 0768432 A1 EP0768432 A1 EP 0768432A1 EP 96430014 A EP96430014 A EP 96430014A EP 96430014 A EP96430014 A EP 96430014A EP 0768432 A1 EP0768432 A1 EP 0768432A1
Authority
EP
European Patent Office
Prior art keywords
envelope
bags
drainage system
bag
filled
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.)
Withdrawn
Application number
EP96430014A
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English (en)
French (fr)
Inventor
Chantal Boissie
Deborah Lucenet
David Lucenet
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.)
Individual
Original Assignee
Individual
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 claimed from FR9512404A external-priority patent/FR2739881A1/fr
Application filed by Individual filed Critical Individual
Publication of EP0768432A1 publication Critical patent/EP0768432A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B11/00—Drainage of soil, e.g. for agricultural purposes
    • E02B11/005—Drainage conduits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0208—Gabions
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains

Definitions

  • patent application EP 85742 under Japanese priority and published on August 17, 1993 on a method to improve soft soil by the method of sand drains made by cylindrical bags inserted by casing in said soil, so that the shape external may be subject to a large increase in load, or even patent application EP 20630 under Swedish priority, published on January 7, 1981 and relating to a drainage pipe comprising an outer tubular casing provided with several grooves and partitions extending towards the high from the respective edges of said grooves.
  • the problem posed is therefore to be able to carry out a drainage of the soils with materials which are added to them, as is known up to now, but with an efficiency which is guaranteed for long periods, with a setting in place and implementation quick and simple, either with the least possible site equipment, and for an overall cost of the supply of the material and its implementation, as low as possible.
  • a soil drainage system comprising at least one bag whose envelope forming a pocket consists of a sheet of porous flexible material, either perforated or permeable, and stiffened by a frame giving it said desired shape, which bag being filled with the same granular material in rigid fragments, of particle size as defined below and which is pozzolan.
  • the objective of the present invention is also obtained by a bag for soil drainage comprising an envelope forming a pocket and made of flexible material and a basket frame consisting of a trellis giving its shape and corresponding to the dimensions of said envelope, which is porous, at least on two opposite faces.
  • a trench of the order of 20 centimeters wide by 50 to 60 centimeters high can receive rectangular bags 14 to 15 centimeters thick, for a height equal to the depth of the trench and d '' a length of 60 to 80 centimeters: taking into account the low density of the pozzolan which is of the order of 1, or 0.980, each bag having such dimensions, has a maximum weight of 50 kilos which can make it easy to handle by one man in hand without machinery or handling equipment; this weight is in fact the maximum authorized by labor regulations in France and the bags can be fitted with handles to facilitate transport and handling.
  • pozzolan as a granular material, in addition to its lower density allowing the process of implementation according to the invention all the more, allows better resistance to temperature because on the one hand, pozzolan, called also “LAPILI” in Italy, is a good insulator, leaves an always free passage between its grains and resists frost well: its qualities are known and already used even since Roman times as aggregate in insulating cements in certain constructions near places of production that are Auvergne in France, and certain Italian regions.
  • Pozzolan is indeed a variety of rock of volcanic origin with alveolar structure, formed of slag which has remained in a loose state, which is found in very large quantities in volcanic massifs: its mechanical characteristics are, in particular, its low density of 0.980 due, among other things, to its porosity, but also a good coefficient of thermal and sound insulation, an ability to withstand large and sudden changes in temperature, a roughness of grain, a richness in various natural components and a fairly good compactness and clean rigidity, avoiding its crushing, mechanical resistance to impact, wear and aggressive agents, all of whose characteristics are well known and to which reference may be made elsewhere.
  • the characteristics of the "polyane” are in particular a tensile strength of the order of 80 kg / mm 2 , with a low coefficient of elongation of the order of 0.65 mm / kg in bi-layer and 0, 85 mm / kg in tri-layer; those of nonwoven geotextiles are preferably needled, with continuous filaments, and for various thicknesses, make it possible to obtain tensile and tear strengths, still greater than those of "polyane", with a lower coefficient of elongation , such as, for example for a 1.1 mm thick geotextile, a weight of 85 g / m 2 , giving a tensile strength of 5 kN / m, a deformation at maximum effort of 60/50 %, a tear resistance of 0.3 kN / m, puncture resistance of 0.4 kN, filtration opening of 120 microns, and for geotextile 1.4 mm thick and 125 g / m 2 in mass surface,
  • the description and the figures below represent exemplary embodiments of the invention, but are in no way limiting: other embodiments are possible, within the scope and scope of this invention, in particular by changing either the basic shape of the bags of the drainage system according to the invention, which could be other than of rectangular or cylindrical parallelepiped shape, or their arrangement in the ground, or both.
  • the bags according to the invention could be used in horizontal sub-layers drainage under surfaces to be built, such as tennis courts or the like, by placing flat rectangular bags to cover the whole of the desired surface, and not vertical in trenches, as shown in FIG. 2; another use can be in vertical sump with cylindrical bags, according to Figure 4, arranged along their vertical axis.
  • Figure 1 is a perspective view of an example of a bag 1 with a frame 3 consisting of internal stiffeners.
  • FIG. 2 is a trench representation with bags 1 making drains according to the invention, such as those of FIG. 2, but bags according to Figures 3 or 4 could also be used.
  • Figure 3 is a perspective view of another embodiment of a bag 1 with an internal basket of welded mesh of flexible steel, flexible iron or plastic, and with meshes between 0.03 x 0.03 meter, up to 0.250 x 0.250 meter and even beyond, and diameters of wire constituting said trellis from 2 to 6 millimeters.
  • Figure 4 is a perspective view of another example of a bag 1 according to the invention, with a frame of the type of that of Figure 3, but of cylindrical shape.
  • All the faces 2 of said envelope are porous, either in the case of "polyane” perforated by orifices 12 with a diameter less than the smallest of the value of the range of particle size chosen, ie 30 millimeters, and preferably 22 millimeters, and even with micro holes of 0.06.
  • the casing 2 is made up of one to three thicknesses of sheets or layers of "polyane” preferably, for better resistance and could be placed inside the stiffeners, as indicated above.
  • a nonwoven geotextile envelope as defined above, it being permeable does not need to be perforated and existing in several thicknesses, it is not necessary to have it in several layers.
  • the envelope 2 of the bag 1 opens on one of its faces, such as at its upper part opposite to the face 2 3 of its bottom which comes into contact with the bottom of the trench 8 or excavation; the opening can also be on a side face 2 2 then arranged vertically for filling, and preferably on the face which carries the socket sleeve 13, although in Figures 1 and 2 attached this opening face is arranged on a face different from that of the sleeve, to clearly show that different possibilities are possible.
  • This envelope face opens to allow filling which can be carried out directly on the extraction site of the pozzolan and of its production in the desired particle size: this opening is then closed by flaps 5 ensuring the closure of the bag, by welding, bonding by press system or by any mechanical means, such as by eyelets 6 pre-punched in the flaps and through which a strap or a rod can be passed.
  • stiffeners 4 are arranged at least along the edges delimiting said shape of the bag 1 and at least along a median on all the faces 2 delimited by said edges, except those corresponding to the filling opening.
  • the spacing between the stiffeners can be 30 to 120 millimeters and even more, depending on the particle size chosen for the pozzolan grains, because the smaller this particle size, the more the dimensions of the mesh defined by the spacing of the stiffeners will have to be reduced. to avoid excessive deformation of the envelope 2.
  • stiffeners are preferably integral with each other and even welded and / or molded from one or more pieces to form an inner basket 3 around which said casing 2 is threaded: preferably, said stiffeners are produced, either by steel or flexible iron, either plastic, of hard PVC type, in rods with a diameter for example of the order of 4.5 millimeters for vertical and horizontal stiffeners, and 3 millimeters for those arranged in diagonal, all of these stiffeners being within a range of 2 to 6 millimeters in diameter.
  • diameter D can be from 0.2 to 1.20 meters.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Agronomy & Crop Science (AREA)
  • Soil Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Building Environments (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Revetment (AREA)
EP96430014A 1995-10-13 1996-10-11 Vorrichtung und Verfahren zur Entwässerung von Boden und Mauern unter Verwendung eines körnigen Materials Withdrawn EP0768432A1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR9512404A FR2739881A1 (fr) 1995-10-13 1995-10-13 Procede et systeme de drainage
FR9512404 1995-10-13
FR9512459 1995-10-17
FR9512459A FR2739882B1 (fr) 1995-10-13 1995-10-17 Procede et systeme de drainage de sols et murs utilisant un materiau granuleux
CA002213048A CA2213048A1 (fr) 1995-10-13 1997-07-28 Caisson et systeme isolant et de drainage de sol

Publications (1)

Publication Number Publication Date
EP0768432A1 true EP0768432A1 (de) 1997-04-16

Family

ID=27170434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96430014A Withdrawn EP0768432A1 (de) 1995-10-13 1996-10-11 Vorrichtung und Verfahren zur Entwässerung von Boden und Mauern unter Verwendung eines körnigen Materials

Country Status (3)

Country Link
EP (1) EP0768432A1 (de)
CA (1) CA2213048A1 (de)
FR (1) FR2739882B1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0952257A3 (de) * 1998-04-23 2000-03-22 Borghi Azio - S.P.A. Modul zur Bildung von Dränagekanälen im Boden
WO2001029334A1 (en) * 1999-10-18 2001-04-26 Humberto Urriola Modular drainage channels
FR2862670A1 (fr) * 2003-11-26 2005-05-27 Jean Marie Heitz Module phonique prefabrique pour mur antibruit, mur antibruit obtenu et procede de fabrication dudit mur antibruit
AU785313B2 (en) * 1999-10-18 2007-01-11 Astral Property Pty Limited Modular drainage channels
GB2440449A (en) * 2006-07-26 2008-01-30 Polypipe Civils Ltd Soakaway
US7591610B2 (en) 2006-02-08 2009-09-22 Brentwood Industries, Inc. Water drain tank or channel module
GB2472210A (en) * 2009-07-28 2011-02-02 Hesco Bastion Ltd A foldable gabion with removable containers for fill material
CN114197541A (zh) * 2021-12-22 2022-03-18 长安大学 抑制地下结构空腔冻胀的刚-柔格栅和碎石联合填充方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6506581A (de) * 1965-05-24 1966-11-25
DE9211973U1 (de) * 1992-09-05 1992-12-24 Brosi, Harald, Dipl.-Ing. (FH), 8898 Schrobenhausen Bewehrungskorb zur Erstellung von Tiefenentwässerungen (Drainagen)
DE9306039U1 (de) * 1992-10-17 1993-07-22 Lüdecke, Adolf, 37154 Northeim Filterkörper

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6506581A (de) * 1965-05-24 1966-11-25
DE9211973U1 (de) * 1992-09-05 1992-12-24 Brosi, Harald, Dipl.-Ing. (FH), 8898 Schrobenhausen Bewehrungskorb zur Erstellung von Tiefenentwässerungen (Drainagen)
DE9306039U1 (de) * 1992-10-17 1993-07-22 Lüdecke, Adolf, 37154 Northeim Filterkörper

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0952257A3 (de) * 1998-04-23 2000-03-22 Borghi Azio - S.P.A. Modul zur Bildung von Dränagekanälen im Boden
WO2001029334A1 (en) * 1999-10-18 2001-04-26 Humberto Urriola Modular drainage channels
US6648549B1 (en) 1999-10-18 2003-11-18 Humberto Urriola Modular drainage channels
AU785313B2 (en) * 1999-10-18 2007-01-11 Astral Property Pty Limited Modular drainage channels
FR2862670A1 (fr) * 2003-11-26 2005-05-27 Jean Marie Heitz Module phonique prefabrique pour mur antibruit, mur antibruit obtenu et procede de fabrication dudit mur antibruit
EP1706540A1 (de) 2003-11-26 2006-10-04 Jean-Marie Heitz Vorgefertigtes schalldämmungsmodul für eine lärmmindernde wand und herstellungsverfahren dafür
US9074337B2 (en) 2005-11-24 2015-07-07 Hesco Bastion Limited Gabion system
US7591610B2 (en) 2006-02-08 2009-09-22 Brentwood Industries, Inc. Water drain tank or channel module
GB2440449A (en) * 2006-07-26 2008-01-30 Polypipe Civils Ltd Soakaway
GB2440449B (en) * 2006-07-26 2012-01-18 Polypipe Civils Ltd A soakaway
GB2472210B (en) * 2009-07-28 2014-11-26 Hesco Bastion Ltd Gabion System
GB2472210A (en) * 2009-07-28 2011-02-02 Hesco Bastion Ltd A foldable gabion with removable containers for fill material
CN114197541A (zh) * 2021-12-22 2022-03-18 长安大学 抑制地下结构空腔冻胀的刚-柔格栅和碎石联合填充方法
CN114197541B (zh) * 2021-12-22 2023-09-22 长安大学 抑制地下结构空腔冻胀的刚-柔格栅和碎石联合填充方法

Also Published As

Publication number Publication date
FR2739882A1 (fr) 1997-04-18
FR2739882B1 (fr) 1998-01-30
CA2213048A1 (fr) 1999-01-28

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