CH662844A5 - ANCHORING DEVICE FOR FIXING THE INSTITUTION OF AN SCHNEEBRUECKE avalanche control. - Google Patents

Description

662844 2

PATENT CLAIMS (8) is arranged and on the carrier

1. Anchoring device for anchoring which is held in pieces (16).

an angle to the slope, in particular approximately perpendicular 10. Anchoring device according to one of the claims to the slope, standing support of a snow bridge of a Lawi 1 to 9, characterized in that the two anchor

nenverbau, to which anchoring device the s bock (3) forming beams (8) of U-profiles with outward

Carrier can be pivoted in the direction of the drop bulb, directed flanges (9) are formed.

wherein anchor rods are fixed in anchor holes produced in the slope, characterized in that the

Anchoring device has two steel beams (8) which are arranged at a distance from one another and are connected to one another by an anchor bracket (3) and which are roughly in Rieh- The invention relates to an anchoring device for the fall bulb (7) of the slope, with which device for the anchoring of the valley axle bolt (17), which is pivotable at an angle to the slope, the carrier (1) of the snow bridge about an approximately horizontal, in particular approximately perpendicular to the slope, carrier of a snow bridge of an avalanche barrier, to which the in the anchor holes fixed in the slope is which anchoring device the supports can be pivoted in the direction of the anchor rods between the two in the fall bulb (7) of the fall fall bulb, whereby anchor rods are fixed in the anchor holes (8) of the anchor bracket (3) which are laid in the slope and are attached Such anchoring device loosely punched against the two supports (8) Large forces anchor plates must be fixed and that at least one (12c, take over and therefore a foundation is required, 12b) of the anchor rods at the upward slope 20 which is anchored to the mountain with anchor rods and / or at the downward end of the anchor bracket. In the previous foundations, (3) were provided at an angle to the vertical on the fall bulb of the slope, for example anchor plates with holes, the anchor bracket being arranged running away while the anchor rods protruded through the holes. This tel range of the anchor bracket (3) at least one (12a) of the exact holes required for receiving the anchor anchor rods running perpendicular to the drop bulb of the slope 25 rods, which is encountered encountering major installation difficulties. is.

2. Anchoring device according to claim 1, characterized in that the invention aims at anchoring the girders that simplify the uphill and / or downhill slope of a snow bridge and the possibility of mounting the two ends in the fall bulb of the slope The load-bearing capacity of this anchoring to verbes-running beams (8) angled welded 30 sern.

Carrier pieces (14,15), to which the obliquely

the anchor rods (12a, 12b) are approximately vertical. direction two spaced from each other and

Anchoring device according to claim 1 or 2, steel girders connected to each other to form an anchor bracket, characterized in that it has inclined ones, which are anchored at approximately 35 in the direction of the fall bulb of the slope anchor rods (12b, 12c) with which the support of the snow bridge is inclined by 30 ° to the vertical on the fall bulb (7). an approximately horizontal axle pivot

. 4. Anchoring device according to one of claims 1 is hingedly connectable in that in the anchor holes in to 3, characterized in that the space between-fixed anchor rods between the two in wrong the two the anchor bracket (3) forming beams (8) line of the slope laid supports of the anchor bracket towards the top and on the underside of the anchor bracket (3) 40 and fixed to anchor plates loosely perforated by loosely attached perforated anchor plates (18 and 19) and that at least is bridged by their Holes in the anchor rods (12) of one of the anchor rods are passed through at the uphill end, and that the two anchor plates (18 and / or at the downward end of the anchor bracket and 19) are screwed onto the anchor rod (12) at an angle to the perpendicular to the Falling pear of the slope from the tern (20) are braced together. 45 anchor bracket is arranged running away, while in the middle

5. Anchoring device according to one of claims 1 tel range of the anchor bracket at least one of the anchors to 4, characterized in that the on the downhill lying rods perpendicular to the fall line of the slope end of the anchor bracket (3) is arranged obliquely arranged.

tete anchor rod (12c) is kink resistant. Because the anchor plates are loosely attached to the two in the

6. Anchoring device according to one of claims 1 so line of the slope laid beams, and thereby, to 4, characterized in that the exposed area that the anchor rods through the gap between the down-slope end of the anchor bracket (3) the two beams there is sufficient clearance in the arranged obliquely directed anchor rod (12c) by making the anchor holes on the slope or in the rock, a cladding tube or a concrete underfill to prevent buckling. The position of the anchor plates is secured. ss opposite the anchor bracket can now correspond to the

7. Anchoring device according to one of claims 1 anchor holes are set and it is therefore one to 6, characterized in that the anchor bracket (3) placed on lower accuracy in the manufacture of the anchor hole-the surface of the slope and only required by the stanchions. The anchor holes anchor rods (12) can thus be fixed on the slope. largely independent of the anchor plates

8. Anchoring device according to one of claims 1 60 and the anchor plates can after fixing the to 7, characterized in that by the two in Fai anchor rods in the rock or in the ground according to the line (7) of the slope laid supports (8), transverse to this, the position of the anchor rods can be adjusted. Through which the anchor rods (1) of the snow bridge are passed at an angle to the axle bolt (17), for the purpose of articulating a fall line of the slope. Anchoring in the direction of the slope of the slope is essential

9. Anchoring device according to one of claims 1 65 improved. Arranged in the middle area of the anchor bracket up to 7, characterized in that the axle bolt (17) to the nether anchor rods, which run vertically to the fall line and one of the girders (l) of the snow bridge, tightens the anchor bracket on the slope. The inclined anchor rods above the two beams forming the anchor bracket (3) are inclined upwards

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essentially strained and absorb the forces acting on the anchor bracket mainly downhill forces in a favorable manner. The inclined anchor rods arranged at the end of the anchor bracket down the slope also bring about an additional low voltage of the anchor bracket on the slope. However, the latter anchor rods can also be subjected to pressure if they absorb the downward forces and are preferably designed to be kink-resistant. The exposed area of such an anchor rod can also be secured against buckling by a cladding tube or a concrete underfill. The anchor holes for the anchor rods running perpendicular to the fall line are arranged over their entire length at a distance which corresponds to the distance between the points of attack of these anchor rods on the anchor bracket. They are therefore pretty close to each other. Due to the oblique outward-pointing anchor rods, this distance is significantly increased in the lower area of the anchor holes and the advantage is achieved that larger rock or ground areas are covered by the anchor rods, namely areas which extend beyond the length of the anchor bracket , which increases the security of the anchorage. There is a limit to the angled position of the anchors or anchor holes in that the anchor holes must be sloping so that they can be filled with concrete or cement. It has proven to be expedient to arrange the oblique anchor rods at an angle of approximately 30 ° to the vertical on the fall line.

The anchoring device according to the invention enables the anchor bracket to be laid without excavation and without concrete foundations, since the anchor rods arranged in the manner according to the invention can easily accommodate loads. According to a preferred embodiment of the invention, the anchor bracket is therefore placed on the surface of the slope and only fixed on the slope by the anchor rods.

In a preferred embodiment of the invention, upwardly angled support pieces are welded to the upward and / or downward ends of the two supports running in the falling line of the slope, to which the obliquely extending anchor rods are approximately perpendicular. In this way, a good support of the anchor plates for the inclined anchor rods is guaranteed. However, the supports running in the fall line of the slope can also be straight and the support of the now obliquely arranged anchor plates can be formed by wedge-shaped underlays or by wedge-shaped design of these anchor plates.

According to the invention, the arrangement is preferably such that the space between the two supports forming the anchor bracket is bridged at the top and at the bottom of the anchor bracket by loosely placed perforated anchor plates, through the holes of which the anchor rods are passed, and that the two plates are clamped together by nuts screwed onto the anchor rod. If the anchor bracket is laid freely on the surface of the slope and without a concrete foundation, unevenness in the floor must be expected, whereby the anchor bracket will not rest on the slope over its entire length. Due to the fact that the anchor bracket is clamped between the two anchor plates on the anchor rods, this anchor bracket is positively and not only non-positively connected to the anchor plates, and therefore the incomplete support of the anchor bracket on the slope is compensated for and rocking is avoided in the event of poor installation. Such a rocking entails the risk that the anchor rods are loosened by hard blows.

According to the invention, the axle bolt, to which the support of the snow bridge is articulated, can be passed through the two supports laid in the fall line of the slope, transversely to these. According to the invention, however, the axle bolts, to which the support of the snow bridge is articulated, can be arranged just above the two supports forming the anchor bracket and can be held on support pieces welded to them. The support of the snow bridge is articulated to the anchor bracket and therefore does not exert any leverage on the anchor bracket. If the axle bolt is passed directly through the support of the anchor bracket, leverage is out of the question, and if the axle bracket is located just above the anchor bracket, such a lever action is negligible. The deep arrangement of the axle bolt is made possible by the anchor bracket being laid freely and without a concrete foundation on the slope and the axle bolt thus being exposed. If the anchor bracket is concreted into a concrete foundation, there is inevitably a greater distance between the axle bolt and the anchor bracket and therefore a larger lever arm.

According to the invention, the two supports forming the anchor bracket are preferably formed by U-profiles with outwardly directed flanges.

In the drawing, the invention is explained schematically using exemplary embodiments.

Fig. 1 shows the location of the snow bridge on the slope.

2, 3 and 4 show an embodiment of the anchoring device, FIG. 2 being a side view,

Fig. 3 shows a section along line III-III of Fig. 2 and

Fig. 4 shows a section along line IV-IV of Fig. 3.

Fig. 5 shows a modified embodiment in side view.

1 shows the position of a snow bridge on a slope in a side view. The supports 1 of the snow bridge are articulated at 2 to an anchoring device 3 and are supported by a strut 4 against the snow pressure. The oblique strut 4 is articulated to an anchor 5 and articulated to the support 1 at 6. The slope of the slope is indicated at 7.

The anchoring device 3 has two U-beams 8 laid in the direction of the fall line, the flanges 9 of which are directed outwards. These two U-beams 8 are connected to form an anchor bracket 13. A gap 11 remains through the webs 10 of the U-beams, through which anchor rods 12 are guided. These anchor rods are inserted into holes on the slope, after which the holes are filled with concrete or cement. Since the space between the two U-beams 8 is relatively wide, there is a certain amount of leeway for the position of these anchor rods, so that no particular accuracy for the bores has to be maintained. The two anchor rods 12a arranged in the middle region are arranged perpendicular to the fall line 7. At the two ends of the carrier 8, carrier pieces 14 and 15 are welded, which are angled upward at an angle of approximately 30 °. Anchor rods 12b and 12c are also passed through these support pieces and now run obliquely outwards. These anchor rods thus clamp the anchor bracket 13 in an oblique direction. The anchor 12 is essentially stressed in tension, since the forces act on the anchor bracket 13 down the slope. The anchor rod 12c either serves only for tensioning or is subjected to pressure when the forces act down the slope. Both anchor rods 12b and 12c and support pieces 14 and 15 can be provided, or the like

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For example, only either the carrier piece 14 and the anchor rod 12b or the carrier piece 15 and the anchor rod 12c can be provided.

U-beam pieces 16 are welded to the top of the two U-beams 8, by means of which axle bolts 17 are articulated for the articulation of the beams 1 of the snow bridge.

Perforated anchor plates 18 are loosely placed on the anchor bracket. Anchor plates 19 rest on the underside. These two anchor plates 18 and 19 are, as shown in FIG. 4, clamped together by clamping nuts 20. In this way, the anchor bracket 13 is rigidly braced with the anchor rods 12, 12a, 12b and 12c. The anchor bracket 13 is placed on the surface of the slope 21. Because the anchor bracket is braced by the anchor plates 18 and 19 with the anchor rods 12, the position of the anchor bracket 13 on the slope 21 is secured despite this unevenness.

22 are tabs through which the two U-beams 8 are rigidly connected to one another to form the anchor bracket 13. These tabs 22 can be with the two U-beams 8

be welded or they can also be screwed to them. The latter case is more favorable if the anchoring device has to be transported in rough terrain.

5 23 is a cross plate, which can be welded to the two U-beams 8 of the anchor bracket 13. This cross plate is used to prevent the anchor bracket 13 from tilting to the side, which would be considered in particular when laying, and moreover also serves to connect the two U-beams 8 to one another.

The embodiment of FIG. 5 differs from the embodiment of FIGS. 2 to 4 only in that

that in this embodiment the axle bolt 17 immediately

15 is guided through the two U-beams 8. In this embodiment, a plate 24, on which the axle bolt 17 is mounted, is welded to the web of the support 1 of the snow bridge formed by a double-T support.

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1 sheet of drawings