DE8435168U1 - Mat or sheet with backfill fabric - Google Patents

Description

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FROM KREISLER SCHÖNWALD EISHOLD FUES FROM KREISLER KELLER SELTING WERNER

PATENT LAWYERS

Dr.-Ing. by Kreisler t 1973 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. Selling

Dr. H.-K. Werner

02/13/1985 Sch / Sd

DEICHMANNHAUS AT THE MAIN RAILWAY STATION

G 84 35 168.3 D-5000 COLOGNE 1

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

Mat or sheet with backfill fabric for use in mining

The invention relates to a mat or sheet with backfill fabric, which is intended for welding in a lagging mat or lagging track, in particular for the expansion of the route with backfilling of liquid building materials, in mining.

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.

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Concrete-like building materials are used as backfill compounds, which are pneumatically or hydraulically injected over long distances Pipelines are conveyed underground to the route location. Shortly before it leaves the pipeline system the building material either water, if it is a pneumatically conveyed building material, or a stimulator for rapid hardening, if it is a hydraulically conveyed building material, supplied.

This results in the problem of the correct setting of the mixing ratio in each case, so that the more or less liquid building material remains where it was pushed, namely between the mountains and the lagging route. Air and excess water must be able to escape from the backfill space without great resistance and have 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 that is between the line wires and cross wires of the warped web or track is welded, at least partially consists of plastic threads. The plastic longitudinal

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

Due to the arrangement of plastic threads in the one in the warping mat close-meshed wire mesh welded in or delay path, you have it in your hand, the permeability of the To be able to favorably influence the draft mat or draft path with regard to the escaping air and / or water. The plastic threads arranged in the close-meshed wire mesh lead to the effect / that along the surfaces where the plastic threads are preferably arranged in groups are, as it were, form storage areas, by compressing the backfill mass. The surfaces that the plastic - Do not have threads, lead to an essentially 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 sauna 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 move in more easily with regard to the clogging compared to the neighboring

areas with the plastic threads will also remain free the clarity increases to determine what is going on behind the warping mat or warping track.

The groups of the plastic longitudinal threads and the iron Line wires on the close-meshed wire mesh can be of the same width or different widths exhibit. Furthermore, the plastic threads can have a round cross section. The plastic threads are advantageous to provide the close-meshed wire mesh with a flat cross-section.

In the same way as with the longitudinal plastic threads 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 an embodiment of a rollable Verisugbahn according to the invention in view and in front view.

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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 is a delay mat illustrated in accordance with the egg ^- the invention in the diagram.

The delay path 1 for shielding the concrete-like backfill compound has longitudinal wires 2 and these crossing cross 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 shown in FIG. 2, it is provided in the close-meshed wire mesh 4 that some 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 intended as galvanized iron wires sir.J. In the illustration 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 is caused by the longitudinal wires 2 of the lashing track 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. This results in mesh fields that have good permeability for the escaping air and / or provide the excess water. This creates 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 often with the longitudinal wires 2 of the delay path 1 coincide, can the longitudinal wires 2 increase the permeability of the area? 9 not to be significantly hindered.

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. With this arrangement it would be advantageous to use the Areas 11, consisting of the groups of flat plastic thread 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 caused by the longitudinal wires 2 of the delay path 1 caught immediately. In the embodiment

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

The group from the galvanized iron wires and the plastic threads can be kept differently wide in area. 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

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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.

The galvanized bisend wires of the close-meshed wire mesh can have a thickness of 0.2 to 0.4 mm. The plastic- FMden can have the <? IsiQhe thickness bzvj; some be kept weaker. The wires of the warping mat can be around 2 to 3 mm. The line wires of the rollable Warping tracks have a diameter of about 1 to 2 mm, while the cross wires are thicker and about 5 to 7 mm own.

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

Claims (12)

lilt «· II * Expectations ..Chatte or web with backfill fabric ^> which is welded between the longitudinal wires and these crossing cross wires at the crossing points of the mat or sheet and a close-meshed wire mesh, e.g. in the manner of a fly wire mesh, in particular for the extension of the route in mining, with backfilling by liquid building materials, characterized in that the longitudinal wires of the close-meshed wire mesh (4) at least partially consist of plastic threads (5, 10). 2. mat or web according to claim 1, characterized in that that the plastic longitudinal threads (5,10) of the backfill fabric - seen in the longitudinal direction of the warping mat or warping track - with the iron longitudinal wires (6) are provided alternately. 3. Mat or web according to claim 1, characterized in that the plastic longitudinal threads (5,10) c-3S backfill fabric - seen in the longitudinal direction of the warping mat or warping track (1) - to the iron longitudinal wires (6) of the close-meshed wire mesh (4) alternately in groups are arranged. 4. Mat or web 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. Mat or web 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 different widths. lift I I I I ι Il Il I ItI I III $ t * ι Il (CtI -ΙΟ 6. Mat or sheet with backfill fabric that is placed between the Line wires and these crossing cross wires of the mat te or web welded at the crossing points and a 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) of the backfill fabric at least partially consist of plastic threads (5, 10), that the plastic longitudinal threads (5,10) - in the longitudinal direction the Verzugmc.hte or Verzugbahn (1) seen - and the \ iron longitudinal wires (6) of the close-meshed wire mesh \ (4 ' are arranged alternately in groups, and that \ the group of plastic longitudinal threads (5,10) of the narrow ('schigen wire mesh (4) in the area of the longitudinal wires (2) ,; the delay mat or delay path (1) are arranged. \ 7. Mat or sheet with backfill fabric that is placed between the \ Line wires and these crossing cross wires of the mat te or web welded at the crossing points and . ' a close-meshed wire mesh, e.g. like a fleece gen wire mesh is, especially for the expansion of the line in mining, with backfilling by liquid building materials, characterized in that the longitudinal wires of the close-meshed wire mesh (4) of the backfill fabric at least partially consist of plastic threads (5,10) that the plastic longitudinal threads (5,10) - in the longitudinal direction 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 of plastic longitudinal threads (5,10) between the longitudinal wires (2) of the Verzuy mat or delay path (1) are arranged. a ·· I a »a I · * If I · A «f · ■ t te t t 4 * * t «l I ll · «· · at af 8. mat or web according to one of claims 1 to 7, characterized in that the transverse wires of the close-meshed Wire mesh (4) consist at least partially of plastic thread. 9. mat or web according to claim 8, characterized in that the transverse plastic threads individually or alternately in groups with the iron transverse wires of the close-meshed wire mesh (4). 10. Mat or web according to one of claims 1 to 9, characterized in that the plastic threads (5) of the close-meshed wire mesh (4) have a round cross-section. 11. Mat or web according to one of claims 1 to 9, characterized in that the plastic threads (10) of the close-meshed wire mesh (4) have a flat cross-section. 12. Mat or web 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.