DE3443767A1 - Backfill fabric in lagging mats and lagging sheets for use in mining - Google Patents

Abstract

The backfill fabric in lagging mats and lagging sheets, which are used for backfilling by means of liquid construction materials, is welded in place between the longitudinal wires and the cross wires at the intersections of the lagging mats and the like and constitutes a narrow-mesh wire fabric, e.g. like fly netting. The longitudinal wires of the narrow-mesh wire fabric (4) are at least partly made of plastic fibres (5, 10). The plastic fibres (5, 10) can be arranged individually, alternately or in alternate groups with the steel longitudinal wires. <IMAGE>

Description

VONKREISLER SCHO'NWÄLb 'EISHOLD FUES FROM KREISLER KELLER SELTING WERNER

PATENT LAWYERS

Dr.-Ing. by Kreisler 11973 Dr.-Ing. K. W. Eishold 11981

Dr.-Ing. K. Schönwald

Dr. J. F. Fues

Dipl.-Chem. Alek von Kreisler

Dipl.-Chem. Carola Keller

Dipl.-Ing. G. Selting

Dr. H.-K. Werner

11/29/1984 Sch / Sd

DEICHMANNHAUS AT THE MAIN RAILWAY STATION

D-5000 COLOGNE 1

Drahtwerke Rosier Soest GmbH & Co. KG, Opmünder Weg 14, 4770 Soest

Backfill fabric in warping mats and warping sheets for use in mining

The invention relates to a backfill fabric which is intended to be welded into warping mats and warping tracks is, in particular for the expansion of the route with backfilling of liquid building materials, in the mining industry.

Close-meshed nets and fabrics are known which are welded into warping mats and warping tracks between longitudinal and transverse wires e.g. in the manner of a fly fabric made of wire. The close-meshed wire mesh consists e.g. of galvanized Iron wires in length and width. The so-called currently used in the warping mats and warping tracks Intermediate layers can also be a welded wire mesh, for example. Such warping mats used for backfilling and delay tracks leave some wishes unfulfilled,

Telephone: (0221) 131041 ■ Telex: 8882307 dopa d · Telegram: Dompatent Cologne

- * - 34A3767

Concrete-like building materials are used as backfill compounds, which are pneumatically or hydraulically conveyed underground over long distances in pipelines to the location of the route

promoted building material, or a stimulator for rapid hardening ~~~ if it is a hydraulically conveyed building material, χ fed.

The problem of finding the right one in each case arises here Adjustment of the mixing ratio so that the more or less liquid building material remains where it is pressed was, namely between the mountains and the delayed route. Air and excess water must be removed without great resistance can escape the backfill and have a good drainage.

In the case of the above-mentioned, known drafting mats and drafting tracks, these conditions are difficult to meet to reach. Above all, one does not have the option of checking the permeability of the delay for air and / or water to be able to control in a certain sense.

The object of the invention is to provide a backfill fabric in connection with a draft mat or rollable draft path for the cladding of line extensions, especially for pneumatically or hydraulically conveyed backfill building materials in mining to create permeability for the media that are supposed to escape Air, water and the like. To be able to influence or control favorably. The invention is characterized in that the Line wires of the close-meshed wire mesh between the line wires and cross wires of the warping mat or track is welded, at least partially consists of plastic threads. The plastic longitudinal

. ^ threads with the iron longitudinal wires of the close-meshed wire mesh be arranged alternately or preferably in groups.

Due to the arrangement of plastic threads in the one in the warping mat or warp path-welded close-meshed wire mesh one has it in hand, the permeability of the Warping mat or -verzugbahn with regard to the escaping To be able to influence the air and / or the water favorably. The plastic arranged in the close-meshed wire mesh Threads have the effect that along the surfaces in which the plastic threads are preferably arranged in groups are, as it were, form storage areas, by compressing the backfill mass. The surfaces that art Do not have fabric threads, lead to a substantially unhindered penetration of air and / or water or an air-water mixture. The damming effect on the surfaces of the plastic thread area builds up - in the The depth of the drafting mat or drafting path - roughly essentially pyramid-shaped, with the greatest width the stowage pyramid is present on the plastic thread surface. The solid substances become lighter on these surfaces retained than on the adjacent surfaces of the wire mesh. This is how the permeability of the warping mat is or the trajectory of the backfill mass for air and / or water can be individually determined and set in advance. Furthermore, a draft mat or draft path which is specifically lighter in weight and which is also better is achieved Can handle what on the one hand the rollability and on the other hand the laying of the warping mat or the like. as it were as a fence on the supports and the like. Because the area with the wire mesh that the easier escape of Allow air and / or excess water to be easier in terms of clogging compared to the neighboring storage

"" Areas with the plastic threads will also remain free clarity — zoomed in to see what behind the warping mat or track is going on.

The groups of plastic longitudinal threads and iron ._J5 Longitudinal wires on the close-meshed wire mesh can be of the same width -se ± rr ~ or- also different widths \ - exhibit. Furthermore, the plastic threads can round one Have cross-section. It is advantageous to have the plastic threads of the close-meshed wire mesh with a flat To provide cross-section. ~~~ "

In the same way as with the longitudinal plastic thread In special cases, you can also use the transverse wires or only the transverse wires of the close-meshed wire mesh at least partially made of plastic threads. It is possible to use the plastic threads individually or to be provided alternately in groups with the iron cross wires of the close-meshed wire mesh.

The plastic threads are thermoplastic Plastic, e.g. polyethylene, so that the close-meshed wire mesh with the plastic threads in longitudinal and / or Transverse direction with the longitudinal and transverse wires of the warping mat or warping path at the crossing points of the latter can be welded. Furthermore, the plastic threads must be flame retardant.

The invention is explained below with reference to the exemplary embodiments shown in the drawing.

1 and 2 show a rollable delay path according to the invention in an embodiment in view and in front view.

3A43767

3 to 5 show further end views of other embodiments the draft path according to the invention with different types of combination in the position of the plastic threads in the close-meshed wire mesh in relation to the longitudinal wires of the drafting path in the diagram.

Fig. 6 illustrates a warping mat according to the invention in a diagram.

The delay path 1 for shielding the concrete-like backfill compound has longitudinal wires 2 and these crossing transverse wires 3 / which are welded at their crossing points are, wherein the transverse wires have a larger diameter than the longitudinal wires and the delay path in the direction the line wires can be rolled. Between the longitudinal wires 2 and the transverse wires 3 is a close-meshed wire mesh 4 arranged, e.g. in the manner of the known fly wire mesh. The close-meshed wire mesh 4 is here welded between the longitudinal wires 2 and the transverse wires 3 at the crossing points of these wires.

As Fig. 2 shows / is in the close-meshed wire mesh 4 provided that part of the longitudinal wires of the close-meshed wire mesh consists of plastic threads 5, while the other longitudinal wires 6 of the close-meshed wire mesh are provided as galvanized iron wires. In the Representation of Fig. 2, the galvanized iron wires 6 are drawn as a hollow circle, while the plastic longitudinal threads 5 are shown in full cross-section. In the embodiment of FIGS. 1 and 2, the plastic longitudinal threads combined into groups 7. Here are the groups 7 of the plastic longitudinal threads of the close-meshed wire mesh 4 in the area of the longitudinal wires 2 of the drafting path 1.

This has the advantage that the damming effect of the group of plastic threads - 5 through the longitudinal wires 2 of the draft path 1 is reinforced. As a result, mesh feathers are created between the longitudinal wires 2 and the transverse wires 3 of the drafting path 1 formed in the longitudinal and transverse directions of the close-meshed wire mesh 4 by the galvanized iron wires are limited »- So there are meshed fields that offer good permeability for the escaping air and / or the excess water. It arises from it Window areas that lead to the neighboring window areas grant increased permeability for air and / or excess water in the close-meshed wire mesh.

In the example of FIG. 3, the areas 8 for the longitudinally extending plastic threads are located between the Line wires 2 of the draft path 1, while the areas 9 of the groups of line wires made of galvanized iron wire are located in the area of the longitudinal wires 2 of the draft path 1. As the galvanized iron wires 6 in this arrangement practically many times coincide with the longitudinal wires 2 of the draft path 1, the longitudinal wires 2 are capable of permeability of the areas 9 not to hinder significantly.

The embodiments of FIGS. 4 and 5 correspond to those 2 and 3, but with the difference that the plastic threads 10 as flat threads have a greater width than have the plastic threads 5 with a round cross-section. In this arrangement, it should be advantageous, the areas 11, which from the groups of flat plastic threads exist to be arranged in the area of the longitudinal wires 2. The group of flat plastic threads has one increased damming effect due to the backfill mass is to be expected. This damming effect is immediately absorbed by the longitudinal wires 2 of the delay path 1. In the embodiment

BATH ORIGINAL

, of Fig. 5 are also in the close-meshed wire network , flat plastic threads used. The group of this flat plastic f f ^ threads is between the longitudinal wires 2 of the draft path 1 is provided, while the group of galvanized iron wires 6 in the area of the longitudinal wires 2 the delay path 1 can be found.

The group consisting of the galvanized iron wires and the plastic threads can be kept different widths in the area expansion. This depends on the type of delay path 1 and the mesh size between the longitudinal wires 2 and the transverse wires 3 of the draft path 1. Naturally one can see the assignment of the groups of plastic threads to the longitudinal wires 2 also left to chance / with more or less relatively open permeability windows between the longitudinal wires 2 and transverse wires 3 of the delay path 1 can arise. Instead of in groups Arrangement you can also have the galvanized iron wires with the plastic threads changed directly. It is given every possibility with respect to the distances between the longitudinal wires 2 and the transverse wires 3 between them the draft path 1 the desired permeability of the close-meshed wire mesh 4 over certain areas of the draft path to be able to adjust.

Furthermore, it can be of importance in some cases, even if the weft wires of the close-meshed wire mesh 4 replaced individually or in groups by plastic threads will. Since plastic threads can also have a high tensile strength, this can reduce the delay path can be specifically trained more easily.

Fig. 6 illustrates a warping mat 12 of limited area, in which the close-meshed backfill fabric 4 between the longitudinal wires 2a and the transverse wires 3a at the intersection

. if

make this is welded. The close-meshed backfill fabric 4 can, according to the examples in FIGS. 2 to 5, at least partially consist of plastic threads 5, 6 in predetermined Groups exist.

"~ 5 The galvanized iron wires of the close-meshed wire mesh can have a thickness of 0.2 to 0.4 mm. The plastic threads can have the same thickness or be kept somewhat weaker. The wires of the warping mat can about 2 to. 3 mm. The longitudinal wires of the rollable draft conveyor have a diameter of about 1 to 2 mm, while the cross wires are stronger and about 5 to 7 mm.

The term plastic threads includes monofilament threads, twisted threads, twisted threads and strip-shaped threads.

Claims (12)

34Λ3767 claims 1. Backfill fabric in warping mats and warping sheets, the between their longitudinal wires and these crossing transverse wires at the crossing points and welded close-meshed wire mesh, e.g. like a fly wire mesh, especially for route expansion ' in mining, with backfilling by liquid building materials, characterized in that the longitudinal wires of the narrow .. meshed wire mesh (4) at least partially consist of plastic threads (5,10). 2. Backfill fabric according to claim 1, characterized in that the plastic longitudinal threads (5,10) - in the longitudinal direction the delay mat or delay path - provided alternately with the iron longitudinal wires (6) are. 3. backfill fabric according to claim 1, characterized in that the plastic longitudinal threads (5,10) - in the longitudinal direction the delay mat or delay path (1) seen to the iron longitudinal wires (6) of the close-meshed Wire mesh (4) are arranged alternately in groups. 4. Backfill fabric according to one of claims 1 to 3, characterized in that the groups of plastic longitudinal threads (5,10) and the iron longitudinal wires (6) of the close-meshed wire mesh have the same widths. 5. Backfill fabric according to one of claims 1 to 3, characterized characterized in that the groups of plastic longitudinal threads (5,10) and the iron longitudinal wires (6) of the close-meshed wire mesh have different widths. , 6. 'Backfilling fabric in warping mats and warping tracks, that between their longitudinal wires and these crossing transverse wires at the crossing points and welded close-meshed wire mesh, e.g. in the manner of a fly wire mesh, especially for route expansion in mining, with backfilling by liquid building materials, characterized in that the longitudinal wires of the close-meshed wire mesh (4) at least partially Plastic threads (5,10) exist that the plastic longitudinal threads (5,10) - seen in the longitudinal direction of the warping mat or warping track (1) - and the iron longitudinal wires (6) of the close-meshed wire mesh (4) are arranged alternately in groups, and that the group the plastic longitudinal threads (5, 10) of the close-meshed wire mesh (4) in the area of the longitudinal wires (2) of the warping mat or delay track (1) are arranged. 7. Hxnterfüllabric in warping mats and warping tracks between their longitudinal wires and these crossing cross wires welded in at the crossing points and a close-meshed wire mesh, e.g. in the manner of a fly wire mesh is, in particular for the expansion of the line in mining, with backfilling with liquid building materials, characterized in that the longitudinal wires of the close-meshed wire mesh (4) at least partially Plastic threads (5,10) exist that the plastic longitudinal threads (5,10) - seen in the longitudinal direction of the warping mat or warping track (1) - and the iron longitudinal wires (6) of the close-meshed wire mesh (4) are arranged alternately in groups, and that the groups the plastic longitudinal threads (5, 10) are arranged between the longitudinal wires (2) of the drafting mat or drafting path (1) are. -3- 8. ^ back fill fabric according to one of claims 1 to 7, characterized characterized -that the transverse wires of the close-meshed wire mesh (4) are at least partially made of plastic thread exist. 9. backfill fabric according to claim 8, characterized in that that die_querlaufenden plastic threads individually or alternately in groups with the iron transverse wires of the close-meshed wire mesh (4). 10. Backfill fabric according to one of claims 1 to 9, characterized characterized in that the plastic threads (5) of the close-knit wire mesh (4) have a round cross-section. 11. Backfill fabric according to one of claims 1 to 9, characterized characterized in that the plastic threads (10) of the close-meshed wire mesh (4) have a flat cross-section. 12. Backfill fabric according to one of claims 1 to 11, characterized characterized in that the close-knit wire mesh (4) with the plastic threads in the longitudinal and / or transverse direction with the longitudinal and transverse wires (2,3) of the draft mat or draft path (1) at the crossing points the latter is welded.