Classifications

• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
  • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
  • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water

Definitions

• the invention relates to a studded web for building purposes of a sheet or plate of impact material, preferably high density polyethylene (HDPE) with studs shaped out of the sheet or plate, the studded web having at least one studless marginal strip run ⁇ ning substantially parallel to one edge of the studded web.
• Such studded webs are preferably used for protecting against mechanical effects and moisture influences, as well as for vent ⁇ ilating and thermally insulating the structure to be protected, and also for surface drainage purposes.
• Studded webs for building purposes have long been known, e.g. from Norwegian patent 107 188 and are successfully used for building purposes in place of conventional moisture protection bitumen coatings or in addition thereto.
• the studs which act as space.. : form an air layer between the outer surface of the struc ⁇ ture . be protected and the sheet surface bounding the surroun ⁇ ding soil.
• the fixing to the structure can take place by means of specially shaped fixing parts, which engage with one or more projections into the said studs and are fixed to the structure by shot bolts or nails driven into said structure through the fixing parts and the studded web.
• Studded webs for building purposes having at least one studless marginal strip running- substantially parallel to one edge of the studded web.
• a marginal strip essentially has two functions. It firstly faci states the partial overlapping arrangement of adjacent studded webs, which is necessary when used on larger structural surfaces Secondly it makes more diff ⁇ icult the penetration of moisture or soil into the area between the sheet and the outer surface of the structure to be protected, particularly on the upper border of the studded web.
• the marg ⁇ inal strip is fixed to the structure by suitable fixing means such as nails, shot bolts, etc., which in spaced manner are driven through the marginal strip into the upper layer of the structure .
• the problem is therefore to avoid the aforementioned disadvan ⁇ tages of the prior art, in that without significant extra costs a much more highly loadable fixing of the studded web to the structure is obtained, without needing separate accessories such as the separate fixing parts.
• the marginal strip is at least partly reinforced with reinforcing means fixed to the marginal strip.
• the solution according to the invention leads to a significant increase in the tear-out resistance of the reinforced marginal strip. Therefore the mar ⁇ ginal strip material is able to absorb much higher forces acting in the area surrounding the fixing means without the marginal strip being torn. As a rule this makes it possible to obviate the use of specially shaped fixing parts, which engage with one or more projections into the studs.
• the reinforcing means can be wholly or partly placed on at least one of the surfaces of the marginal strip. In this case the fitting of the reinforcing means to the marginal strip is very
• the reinforcing means are placed on the marginal strip surface facing the structure to be protected.
• the arrangement on this surface offers manufacturing advantages, which will become clear in the subsequent part of the description. This additionally leads in the installed state to an even higher tearing out force, a further improved sealing action with respect to penetrating soil and moisture and an optical-esthetically more pleasing appearance of the installed studded web.
• the reinforcing means wholly or partly within the marginal strip material, i.e. sink or embed the same in said marginal strip material.
• the reinforcements are particularly well protected against external influences, such as e.g. damage during transportation or possible corrosion by moisture. It is also possible to have a combination of the arrangement on the surface and within the marginal strip material.
• the reinforcing means can comprise reinforcing wires, threads or tapes, said reinforcing wires, threads or tapes preferably being metal wires or plastic threads or plastic tapes and in partic ⁇ ular high-tenacity plastic threads or plastic tapes .
• the aim is to embed the reinforcing wires, threads or tapes during the studded web pro ⁇ duction process, whereby said web is preferably made from HDPE, in the marginal strip when it is still hot or warm. This leads to a particularly strong connection of the reinforcing means to the marginal strip material.
• the reinforcing means can also comprise a woven wire cloth.
• a relatively wide-meshed woven wire cloth it is possible to embed said cloth wholly or partly in the marg ⁇ inal strip material in order to achieve a particularly intimate connection.
• a further preferred development of the invention is constituted by a reinforcing layer, which is placed as the reinforcing means on at least one surface of the marginal strip.
• the reinforcing layer is formed by a fabric strip, because the latter can be made particularly flexible and at the same time tear-resistant.
• the fabric strip is preferably constituted by plastic, because plastic is chemically highly resistant to corrosion and rotting, light and tear-resistant.
• the preferred fabric strip is advantageously provided on at least one side with a coating surface-connectable to the studded web material by welding, bonding, etc.
• a coating surface-connectable to the studded web material by welding, bonding, etc.
• the fabric strip is made from HDPE and the coating of the fabric strip, is in preferred manner of low density polyethylene (LDPE) , then the fabric strip coating can be welded without difficulty to the marginal strip surface.
• the marginal strip of the studded web can be provided on at least one side at least partly with a corresponding coating.
• the studded web, fabric strip and their connecting means in the form of a LDPE coating in this preferred further development are all made from the same, weldable and ground water-compatible basic material, namely polyethylene (PE) , so that the entire protection and sealing system can, if necessary, be easily recycled.
• a high-tenacity tape cross fabric can be used with particular advantage as the fabric for the fabric strip, particularly if the fabric strip is arranged with longi ⁇ tudinal tapes running substantially parallel to the edge of the studded web.
• tests have revealed that there is a particularly high tearing out force for a studded web with nails fixed in the reinforced marginal strip.
• the tearing out resist ⁇ ance is also favourably influenced by an adequate number of transverse tapes, which are substantially at right angles to the edge of the marginal strip in the fabric strip and an adequate thickness of the fabric strip tapes.
• a combination of different reinforcing means for the marginal strip is also easily possible.
• the studded web is subject to particularly strong mechanical forces, it is e.g. possible to combine a reinforcement by metal wires pressed into the marginal strip material, e.g. by means of a roller, with a reinforcement by a LDPE-coated, HDPE fabric strip welded to the marginal strip.
• the marginal strip is preferably constructed in one piece with the remaining areas of the studded web. For this purpose it is merely necessary for the studded web not to be provided over its entire width or length with studs during its manufacturing process.
• the marginal strip is preferably fixable by means of fixing means such as nails, shot bolts, etc. to the structure to be - 6 -
• the marginal strip has markings and/or openings for the fixing points, in order to facilitate the arrangement of the fixing means at reg ⁇ ular intervals on the building site. This ensures a correct fitting of the studded web in accordance with building rules.
• the marginal strip is bendable along a bend ⁇ ing line running substantially parallel to the edge.
• the bending line is constructed in such a way that the marginal strip can be applied resiliently from the bent posi ⁇ tion to the structure to be protected.
• Fig. 1 A view of part of a first preferred embodiment of the studded web according to the invention.
• FIG. 2 A cross-sectional view of a second, preferred embodiment of the studded web according to the invention during the installation on the structure.
• Fig. 1 shows a first embodiment of the studded web 1 according to the invention
• the studded web 1 has a studless marginal strip 3 and a studded surface A provided with studs 2.
• the stud height is 8 mm
• the marginal strip 3 has a width of about 70 mm
• the studded web thickness is 0.6 mm.
• the studded web 1 can be manufactured in that a HDPE sheet is passed in the warm state over a spiked roller, whose spikes shape the studs 2 The edge of the spiked roller is not prov ⁇ ided with spikes, or the outer marginal area of the HDPE sheet is not passed over the spiked roller, so that a studless marg ⁇ inal area is obtained.
• the marginal strip 3 is provided on the side which will subse ⁇ quently face the structure 10 and on which the studs 2 are loca ⁇ ted with a fabric strip 8 of a cross fabric of HDPE tapes.
• the HDPE cross fabric is provided on one side with a coating of low density polyethylene (LDPE). Alternatively it is possible to apply the LDPE coating to the marginal strip 3.
• LDPE low density polyethylene
• the coating makes it possible to weld the fabric strip 8 during the manufac ⁇ turing process of the studded web 1 to the still hot or warm surface of the marginal strip 3, so that there is no need for an additional connection or joining by bonding or a further heating of the marginal strip 3 for welding. In this way the fabric strip 8 can be applied in a simple and economic manner.
• the fabric strip 8 is positioned in such a way that the longitudinal tapes 9 run parallel to the edge 5 of the studded web 1. As has been revealed by tests, this leads to a particularly high tear out force.
• an adequate number of transverse tapes which are substantially at right angles to the edge 5 in the fabric strip 8 and an adequate thickness of the tapes have a favourable influence on the tearing out force, which would be necessary in order to tear the fabric strip 8, including the marginal strip 3 by a force acting at right angles to the edge 5,
• a fixing means such as e.g. a nail 7 on the material of the marginal strip 3 and the fabric strip 8, when the marginal strip 3 is applied to the structure 10 to be protected and external forces act on the studded web 1.
• the first embodiment of the studded web 1 has at regular inter ⁇ vals openings 12 in the marginal strip 3, which are essentially located on a line parallel to the edge 5.
• the openings 12 are produced by a punch during the production process of the studded web 1. They serve as marking points for the fixing means in order to facilitate the placing of the fixing means at regular intervals along the brickwork surface.
• Fig. 2 shows .a second embodiment of the studded web 1 according to the invention in a cross-sectional view during installation on the structure.
• the marginal strip 3 is once again provided on the side facing the structure 10 with a fabric strip 8 of HDPE tapes.
• the studded web 1 additionally has a studless area 11 adjacent to the marginal strip 3 and which is provided with a through fabric strip 8.
• the boundary between the marginal strip 3 and the adjacent studless area 11 is formed by a bending line 6, along which the marginal strip 3 is bend ⁇ able substantially parallel to the edge 5.
• the fastening or fixing means is constituted by a hardened disk head nail 7, which is driven through the studless area 11 of the studded web 1 into the struc ⁇ ture 10.
• a hardened disk head nail 7 which is driven through the studless area 11 of the studded web 1 into the struc ⁇ ture 10.
• other commercial fastening means such as screws, in conjunction with percussion dowels or shot bolts .
• the disk head nail 7 can additionally or
• SUBSTITUTE SHEET (RUL_ 26) exclusively be driven through the marginal strip 3 in this embodiment .
• Fig. 2 clearly shows which forces must be absorbed by the material of the marginal strip 3 at the point surrounding the disk head nail 7 if soil acts on the studded web 1.
• these forces have a strong component parallel to the outer surface of the structure 10, particularly if the initially loose soil (i.e. after filling the trench) gradually stabilizes and "settles".
• the construction according to the invention of a studless marginal strip 3 reinforced with a reinforcing layer brings about, particularly in the preferred further developments, a marked increase in the tearing out strength of the fixing of the studded web 1 and therefore to much higher security reserves, which generally makes it possible to avoid the use of specially shaped fixing parts.

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• Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Paleontology (AREA)
• Hydrology & Water Resources (AREA)
• General Life Sciences & Earth Sciences (AREA)
• Mining & Mineral Resources (AREA)
• Environmental & Geological Engineering (AREA)
• Civil Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Structural Engineering (AREA)
• Building Environments (AREA)
• Laminated Bodies (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Manufacture Of Macromolecular Shaped Articles (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6906247

Family Applications (1)

Country Status (6)

Cited By (1)

Citations (2)

Family Cites Families (7)

• 1994
  • 1994-03-19 DE DE9404701U patent/DE9404701U1/de not_active Expired - Lifetime
• 1995
  • 1995-03-16 CA CA 2163252 patent/CA2163252A1/en not_active Abandoned
  • 1995-03-16 WO PCT/EP1995/000986 patent/WO1995025850A1/en not_active Application Discontinuation
  • 1995-03-16 EP EP95913880A patent/EP0699254A1/de not_active Withdrawn
  • 1995-03-16 CN CN 95190199 patent/CN1124511A/zh active Pending
  • 1995-03-16 JP JP7524366A patent/JPH08511314A/ja active Pending

Patent Citations (2)

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