DE6601214U - ANCHOR PLATE FOR MOUNTAIN ANCHORS - Google Patents

Description

P.A. * 95 988 * 21.8.6 «

File number: T 22 406 / 5c Gbm F / fl J

Joseph Antoine Talobre, PARIS XVI ^e , 50 rue de Boulainvilliers, France

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Anchor plate ^ for rock anchors

The Neueri ^ ag betx * ifft anchor plates for rock anchors. At the Construction of tunnels or "for other work on rock walls, these must be supported by means of plates, which in Bores in the rock "fastened anchor bolts are held.

Known plates for anchor bolts are relatively small, generally flat and roughly rectangular in shape. These anchor plates are also relatively heavy. The desired Supporting or securing cannot be achieved with them in aiis- ,. achieve sufficient measure. The known plates hold namely the rock only on a relatively small area and they therefore favor, especially when greater forces occur, a destruction of the rock, so that the supporting effect get lost.

The innovation eliminates these disadvantages.

The anchor plate for a rock anchor has according to the innovation a bulge such that on one side of the plate a depression and on the other a corresponding elevation

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is available. This bulge has a through hole for the anchor bolt. The anchor plate has two or more arms at approximately the same angular distance from each other, whose iäiden be brought to rest against the rock face Can. It is advisable to keep the length of the arms To make moderately large in order to achieve a large distance between the contact points or breakpoints. This becomes a Prevents falling rocks and safety when working in the tunnel or on rock faces is increased.

Preferably the bulge has the shape of a hemisphere, in the middle is the through hole for the Anchor bolt is located.

The star-like or rosette-like anchor plates can be made of II or plastic, s- B ^ fe inem duroplast "

BIh iSesgs of sa baseltlgendea Abrauss and this is düLe rock face The 3tons to be added are reduced. The supporting and securing effect of the anchor device can be achieved by * Bring a wire mesh or the like. Be supplemented that

held against the rock face by the arms of the bulged anchor plates.

Since the anchor plates according to the! have large areas, you can use relatively strong anchor bolts without the risk of destruction of the rock. If the anchor plate is to absorb larger forces, the thickness of the sheet metal or the like is sufficient. from which the bulged anchor plate is made, larger

to choose.

In general, however, the "bulbous, stemacruigen or rosette-like parts of the anchor plate are of small thickness, so that they are easy and economical to manufacture. In addition, the elasticity of this anchor plate ^ that they adapt to the irregularities of the rock wall and continue to be by the the anchor plate elasticity also limits the force transmitted to the anchor bolt force to a certain Vert, whereby a fraction of the $ anchor bolt is prevented * the anchor plates according to the

Innovation also adapt Sichtungsfehlern the anchor bolt and it accounts for the difficulties that exist in the known anchor plates, when the anchor bolt does not perpendicular to the rock face or the face that dsreh dis ± .u £ Iag "pu £ kt # To ^ Arms of the anchor plate goes.

Ba, the armature plate of the bulge and its sand Aryan has an (open) cavity which faces the rock wall, Trarm to fill this intermediate space with concrete. For this purpose one can use one of the arms of the anchor plate

or provide injections in several arms. So Is it also possible to change the thread of the nut and to protect the thread at the outer end of the anchor bolt with concrete.

The drawing shows an embodiment of the inflation shown. Ss shows:

Fig. 1 is a perspective view of an anchor plate

according to the! inflation;

2 in a schematic representation a section through the anchor plate illustrated in Fig. 1 after attachment to the point of use by means of deis anchor bolt.

The anchor plate according to the hiring has three armo and points in the middle a recess 1, in which «in through hole 2 for the anchor bolt is attached. Arms are attached to the recessed or bulged part, have the same angular distance from each other. Preferably

# are, as in the illustrated embodiment, three

Arms provided 3 »3 ¹ " and v "· The, anchor plate has on the whole a bulbous shape. The middle Yertiejiung 4 is preferably hemispherical, which is penetrated by the bolt hole 2 in the middle.

The arms 3, 3 ¹ and 3 ″ preferably have bent wall

parts 5 and at their outer ends bent tips or » i

Claws 6.

The anchor plates can be made of any suitable material be manufactured, e.g. B. made of plastics or metal. The embodiment shown in the drawing can, if the manufacture of sheet metal z. B. should be done in the deep drawing process should be made from a flat sheet, that has a triangular border.

The anchor plate 1 is attached to the rock wall 7 by means of the anchor bolt 9 introduced into the borehole 8.

One end protrudes through the hole 2 in the anchor plate 1 of the anchor bolt 9 to the outside, which is provided with a thread, on which, with the interposition of a T

~ 5 -

Washer 10 of a nut 11 is screwed on. By. Tightening the nut 11 determines or sets the force with which the elastic arms of the anchor plate printed against the rock face.

A hole 6 can be provided in one arm of the anchor plate Λ or in several arms, which is used to inject concrete.

The anchor plates according to the innovation can be replaced by appropriate Choice of dimensions and cross-section are designed so that several tie plates fit into one another. Through this there are advantages in terms of transport. But you can also place two or more anchor plates according to the hay to reinforce the anchor device on top of each other and in this Connect the layer by means of the anchor bolt.

Although in. generally the anchor device so attached "} is that the arms of the anchor plate 1 against the Eelswand

if necessary, the anchor plates can also be attached the other way around.

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Claims (6)

Scliutz-Aiispruclie 1. Anchoring plate for rock anchors, characterized in that the anchor plate (1) has a bulge or recess (4 ·) which has the through hole in the middle. (2) for the A nk studs (9) and the two or more outwardly directed arms (3, 3 ' ₅ 3 ") h.at, which are at the same angle from each other around the Q bulge (4) are arranged. \ S 2. anchor plate after. Claim 1, characterized in that they are made of sheet metal, e.g. Sheet steel is manufactured in a deep drawing process. ^ 5. anchor plate after. Claim 1, characterized in that it is made of plastic. ^ 4. Anchor plate according to claim i to 3i, characterized in that the arms (3, 3 ¹ , 3 ") are bent at their side edges to form walls (5, 5 ¹ » 5 "). * s s- ^ 5. anchor plate according to claim 1 to 4, characterized in that that at the ends of the arms (3> 3 '»3") claw-like Tips (6) are provided. ^ 6. Anchor plate according to claim 1 to 5 »characterized in that three arms (3, 3 ' ₅ 3") are present. 7 «anchor plate according to claim Λ to 6, characterized in that the dimensions or the cross-section of the anchor plate are selected so that they fit into one another., 01214