AU659036B2 - Back-filling mat - Google Patents
Back-filling mat Download PDFInfo
- Publication number
- AU659036B2 AU659036B2 AU48899/93A AU4889993A AU659036B2 AU 659036 B2 AU659036 B2 AU 659036B2 AU 48899/93 A AU48899/93 A AU 48899/93A AU 4889993 A AU4889993 A AU 4889993A AU 659036 B2 AU659036 B2 AU 659036B2
- Authority
- AU
- Australia
- Prior art keywords
- mat
- filling
- support mesh
- layer
- sealing
- 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.)
- Ceased
Links
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 239000004744 fabric Substances 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 239000004746 geotextile Substances 0.000 claims abstract description 12
- 238000005065 mining Methods 0.000 claims abstract description 8
- 239000004753 textile Substances 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims abstract description 5
- 239000002759 woven fabric Substances 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 238000005470 impregnation Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- -1 fleece Substances 0.000 claims 2
- 239000004745 nonwoven fabric Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 102100040428 Chitobiosyldiphosphodolichol beta-mannosyltransferase Human genes 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 101100491335 Caenorhabditis elegans mat-2 gene Proteins 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/155—Laggings made of strips, slats, slabs or sheet piles
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Architecture (AREA)
- Woven Fabrics (AREA)
- Laminated Bodies (AREA)
- Road Paving Structures (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Revetment (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Cultivation Of Seaweed (AREA)
- Nonwoven Fabrics (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
Filling mats, in particular for underground mining and tunnel construction, consist essentially of a sealing mat layer, for example of geotextile, such as nonwoven fabric, woven fabric or composite material and a lagging-like supporting mesh. To improve the handleability in the processing and transport and for a cost-effective production, the supporting mesh (3) is designed as high-performance textile mesh fabric having strips (4, 5) running in the manner of warp and weft threads and joined non displaceably to one another and, in conjunction with a sealing mat layer (2), as a composite mat. <IMAGE>
Description
i'll -1- 659036 P/OO .011 Rcgulation 32
AUSTRALIA
Patents Act 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT
ORIGINAL
Ve 9000 Name of Applicant: Actual Inventor: Address for service in Australia: JOHANNES RADTKE As Above CARTER SMITH BEADLE 2 Railway Parade Camberwell Victoria 3124 Australia Invention Title: BACK-FILLING MAT The following statement is a full description of this invention, including the best method of performing it known to us I~ L -2- The present invention relates to back-filling mat, in particular for underground mining md tunnel construction, consisting essentially of a sealing mat layer made, for example, from a geotextile, such as fleece (non-woven material), woven fabric or bonded yarn fabric and a netting-like support mesh.
In the field of underground mining it is known, as described amongst other things in the periodical "Unser Betrieb", Werkzeitschrift ffr die Unternehmen der Deilmann-Haniel-Gruppe, No. 60, April 1992, page 5, in combination with conventional wire-mesh mats during the lining and re-conditioning operations, that a sealing layer of fleece may be utilised.
.10 This so-called geotextile layer made from a mechanically- or thermally-resistant bonded yarn fabric should be an effectual sealing means for the back-filling during the setting time or else it should prevent the breaking out of the back-filled mass of concrete through the mesh into the gallery.
o The utilisation of fleece for this type of application has the advantage that, 15 conditional upon the pre-determined atructure of the material, the excess water, of a concrete mix for example, can seep out through the sealing layer, but the important cement mortar which is essential for the mechanical strength of the backfilling will remain in the back-filling mass. Because the geotextile lacks adequate strength, the necessary support strength is provided by conventional wire mesh.
However, there are several disadvantages in this combination of geotextile and wire-mesh mat which do not allow for practical utilisation on the desired scale.
Wire-mesh mats, especially in underground mining with the corrosive and humid environmental conditions prevailing there, are sensitive to corrosion and thus require additional treatment such as coating or galvanising, making the product extremely expensive to manufacture.
Furthermore, wire-mesh mats, the longitudinal and transverse wires of which usually have a diameter from 6-8 mm, are heavy and difficult to transport because of the large pre-determined surface areas. In addition to this, the handling of the wire-mesh mats can be dangerous and, because of the edges, spikes and surface roughness occasioned by the production methods, damage to the sensitive geotextile materials cannot be excluded, and therefore it is not possible to ensure that the geotextile would be leak-proof to the desired extent.
9 In addition to this, the installation of geotextile, which is not inherently mechanically strong and is very liable to rupture, in combination with the supporting wire-mesh mat, poses a continual problem for its handling, the seriousness of which is not to be under-estimated.
In contrast to this, the invention has the objective of providing a back-filling mat, in particular for the lining- and re-conditioning-operations of mining and tunnel 15 construction, which eliminates the disadvantages referred to, by providing adequate support between the lining profiles while, at the same time, being light in weight and, depending upon the weight, it may be fabricated in any required size, and *.eoe utilised even in the form of a roll-up mat, making possible simple, safe handling by the operators withou fear of bodily injury. The production thereof is inexpensive and economically viable.
This objective may be achieved in accordance with the present invention by having the support mesh in the nature of a warp and weft fabric made from strips of heavy-duty textile fabric anchored firmly to one another and bonded with a sealing mat layer to form a composite mat.
-4- This type of composite mat can be folded up, or rolled up, into any desired shape for transport, in which case the shape of the composite mat will be dependent upon the installation procedure.
The dimensions of the mesh and of the mesh apertures and the thickness of the warp and weft threads may be varied, depending upon the particular type of application.
The bonding together of support mesh and sealing mat layer, which is ensured by at least spot-welding at points distributed over the surfaces of the two components, provides the advantage that, by the installation of a single product, there are 3t0 substantial savings of labour time and costs at the working site.
Depending upon the desired effect and the task to be performed, the back-filling mat, provided as a composite mat, can be configured in such a way that, by way of example, the sealing layer of the mat can be located on the working-face side or on the gallery side of the support mesh. If the support mesh is disposed on the 15 working-face side, it can be, at least partly, integrated as reinforcement in the backfilling mass. A special embodiment of the composite mat will provide here a corrugated configuration of the support mesh, thus making possible a more intimate integration into the back-filling mass.
However, if necessary, it is possible to conceive a double-sided bonding of the support mesh with sealing layers of mat, so that both sides of the support mesh are completely covered with an individual sealing mat layer.
If the support mesh is disposed on the gallery side of the sealing mat layer, the support mesh will have a purely supporting function which, on the basis of a nonrotting implementation, will ensure increased safety in the case of fracture or crumbling of the back-filling layer.
From the point of view of manufacturing technology, it is possible to integrate the support mesh directly into the .ealing layer of the mat, by way of weaving them together, for example. A fleece-thread stitch-bonded fabric would be especially suitable for such an implementation.
In the utilisation of back-filling mats, predominantly in mining and tunnelling operations, it can be regarded as expedient for both the support mesh and the sealing layer of the mat to be rendered anti-static, for example by the integration of short metal threads into the mat layer and, at the same time, it should be made alkali-resistant, for example by impregnation.
When the back-filling mat is fabricated as a roll-up mat, it has been found to be an advantage to strengthen the mesh strips parallel to the rolling axis by making them thicker, without thereby adversely affecting the rolling-up capability.
Similarly, in other cases, it is possible to strengthen the transverse strips also, in order to obtain a mat which, in particular, has a rigidity which facilitates its installation.
The reinforcements may be metal wires or comparable inserts, for example made from glass textile fabric or glass filaments.
In addition to this, if required, the composite mat may be supported in the longitudinal direction on the gallery side by means of drawn rods that can be fastened together.
-6- Furthermore, it may be conceived that, within the scope of the invention, the sealing mat layer which is bonded to the support mesh can be multi-layered by a combination of bonding, laminating or quilting together of the individual layers.
An example of embodiment of the back-filling mat in accordance with the present invention is represented diagrammatically in the accompanying drawing and will now be described in greater detail.
The back-filling mat 1 depicted partly opened-up in the drawing is an example of embodiment of two-layer sealing mat 2, consisting, by way of example, of a geotextile in the form of a fleece in which, by way of example, in a mechanical :1 preliminary pressing operation, the intermediate support mesh 3 is integrated. The :support mesh 3 is at least spot-welded at points distributed over the surface to one or both sealing mat layer(s) 2.
The usual implementation of a back-filling mat 1 should include a support mesh 3 S and a sealing mat layer 2, made from geotextile, joined together by bonding.
The support mesh 3, as may be seen in the drawing, is in the nature of a warp and weft fabric made from strips 4, 5 of a heai3r-duty textile fabric anchored firmly to #oQ• one another and, depending upon requirements, can be provided, at least partly, with thickened longitudinal strips 4 or also with thickened transverse strips It is possible to conceive of examples of embodiment within the scope of the invention of a back-filling mat which is fabricated from a mat layer 2 made, for example, from fleece, woven fabric or a composite fabric, and which are bonded to a support mesh of a heavy-duty textile fabric, and that, by way of example, the support mesh 3 is integrated in the mat layer 2 or is bonded to a mat layer 2 on both sides. The support mesh 3 may be integrated by weaving into the mat layer.
Claims (12)
1. Back-filling mat, in particular for underground mining and tunnel construction, consisting essentially of a sealing mat layer made, for example, from a geotextile such as fleece, woven fabric or bonded yarn fabric and a netting-like support mesh, wherein the support mesh is configured as a warp and weft fabric made from strips of heavy-duty textile fabric anchored firmly to one another and bonded with a sealing mat layer to form a composite mat.
2. The back-filling mat according to Claim 1, wherein the sealing mat layer is at least spot-welded to the support mesh at points distributed over its surface. .00:.10
3. The back-filling mat according to Claim 1, wherein the sealing mat layer bonded to the support mesh is disposed on the working-face side and/or on the gallery side of the support mesh.
4. The back-filling mat according to Claim 1, wherein the support mesh is integrated with the sealing mat layer, for example by weaving into it.
5. The back-filling mat according to Claims 1 and 3, wherein, if the sealing layer of i the mat is disposed on the gallery side, the support mesh can have a corrugated o* configuration and is bonded to the sealing mat layer at points or along strips.
6. The back-filling mat according to Claim 1, wherein the support mesh and the sealing mat layer are rendered anti-static, for example by integration of metal threads, and alkali-resistant, for example by impregnation.
7. The back-filling mat according to Claim 1, wherein the composite mat is configured as a roll-up mat.
8. The back-filling mat according to Claims 1 and 7, wherein the strips of the support mesh are strengthened in at least one direction.
9. The back-filling mat according to Claim 1, wherein the sealing mat layer disposed on at least one side of the support mesh and bonded to it at least at points distributed over its surface, is configured as a multi-layer mat. The back-filling mat according to Claim 8, wherein metal wires or comparable inserts, for example made from glass textile fabric or glass filaments, are provided as reinforcements in the support mesh. o.
S
11. The back-filling mat according to Claims 1 and 9, wherein the multi-layer mat .10'L bonded to at least one side of the support mesh is formed by a combination of :i bonding, laminating or quilting together of the individual layers.
12. A back-filling mat substantially as hereinbefore described with reference to the accompanying drawing or incorporating any one or more of the novel features herein disclosed. ga•* DATED: 7 October 1993 CARTER SMITH BEADLE Patent Attorneys for the Applicant: JOHANNES RADTKE *fee SI ABSTRACT Back-filling mats, in particular for underground mining and tunnel construction, consist essentially of a sealing mat layer made, for example, from a geotextile such as fleece, woven fabric or bonded yarn fabric and a netting-like support mesh. For improving its handling during fabrication and transport, and also for inexpensive production, the support mesh is configured as a warp and weft fabric made from strips of heavy-duty textile fabric anchored firmly to one another and bonded with a sealing mat layer to form a composite mat. 0 o..0 o 0 *oooo •go•* *o• *oo oooo*
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9213673U DE9213673U1 (en) | 1992-10-09 | 1992-10-09 | |
| DE9213673 | 1992-10-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU4889993A AU4889993A (en) | 1994-04-21 |
| AU659036B2 true AU659036B2 (en) | 1995-05-04 |
Family
ID=6884675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU48899/93A Ceased AU659036B2 (en) | 1992-10-09 | 1993-10-07 | Back-filling mat |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0591963B1 (en) |
| AT (1) | ATE154969T1 (en) |
| AU (1) | AU659036B2 (en) |
| DE (2) | DE9213673U1 (en) |
| PL (1) | PL172029B1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9213673U1 (en) * | 1992-10-09 | 1992-12-17 | Radtke, Johannes, 4130 Moers, De | |
| GB9402598D0 (en) * | 1994-02-10 | 1994-04-06 | Univ Newcastle | Improvements relating to geosynthetics |
| GB9828270D0 (en) | 1998-12-23 | 1999-02-17 | Univ Newcastle | An electro kinetic geosynthetic structure |
| ZA200800630B (en) * | 2007-01-18 | 2008-12-31 | Skarboevig Nils Mittet | A support net for underground mine supports |
| CN104191741A (en) * | 2014-07-31 | 2014-12-10 | 山东浩阳新型工程材料股份有限公司 | Compound geotechnical cloth |
| DE102020108728A1 (en) * | 2020-03-30 | 2021-09-30 | International Automotive Components Group Gmbh | Interior trim for a motor vehicle, comprising a headliner and a stiffening frame, and method for their manufacture |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591963A1 (en) * | 1992-10-09 | 1994-04-13 | Johannes Radtke | Filling mat |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1119408A (en) * | 1965-10-12 | 1968-07-10 | G K N Gridweld Engineering Ltd | Improvements in or relating to erecting lagging structures in mine galleries |
| DE2707683A1 (en) * | 1977-02-23 | 1978-08-24 | Roesler Draht Kg | Plastics gutter for conveying water in mines, tunnels etc. - made of a band incorporating a film web reinforced with permanently deformable steel wire netting |
| DE2825160A1 (en) * | 1978-06-08 | 1979-12-13 | Ruhrkohle Ag | Mine type backfilling concrete reinforcing mat - has longitudinal bars on ridge side with ends bent towards ridge |
| DE2935645A1 (en) * | 1979-09-04 | 1981-03-12 | Hölter, Ing.(grad.), Heinz, 4390 Gladbeck | Mine gallery water deflecting screen - has steel mesh reinforcement rolled in between two plastic sheets |
| DE3731029A1 (en) * | 1987-09-16 | 1989-04-06 | Wilhelm Blaeser Gmbh & Co Kg | Method and arrangement for producing lagging mats for mine support |
| DE3834701A1 (en) * | 1988-10-12 | 1990-04-19 | Johannes Radtke | Composite textile mat |
| DE4138506A1 (en) * | 1991-02-28 | 1992-09-03 | Johannes Radtke | High performance textile mat for civil engineering use - has longitudinal and cross strips locked against each other at crossover points |
-
1992
- 1992-10-09 DE DE9213673U patent/DE9213673U1/de not_active Expired - Lifetime
-
1993
- 1993-10-07 AT AT93116226T patent/ATE154969T1/en not_active IP Right Cessation
- 1993-10-07 DE DE59306838T patent/DE59306838D1/en not_active Expired - Fee Related
- 1993-10-07 EP EP93116226A patent/EP0591963B1/en not_active Expired - Lifetime
- 1993-10-07 AU AU48899/93A patent/AU659036B2/en not_active Ceased
- 1993-10-08 PL PL93300645A patent/PL172029B1/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591963A1 (en) * | 1992-10-09 | 1994-04-13 | Johannes Radtke | Filling mat |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0591963A1 (en) | 1994-04-13 |
| AU4889993A (en) | 1994-04-21 |
| PL300645A1 (en) | 1994-04-18 |
| EP0591963B1 (en) | 1997-07-02 |
| DE59306838D1 (en) | 1997-08-07 |
| DE9213673U1 (en) | 1992-12-17 |
| ATE154969T1 (en) | 1997-07-15 |
| PL172029B1 (en) | 1997-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |