DE20116752U1 - Schacht-shoring - Google Patents

Description

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Shaft shoring box

The invention relates to a shaft shoring box for a shoring device with trench shoring plates arranged at a distance from one another, consisting of

two parallel shaft retaining walls that run in the longitudinal direction of the trench and at the ends of which intermediate walls are arranged that run transversely to the trench and fill the gaps between the shaft retaining walls and the narrower trench retaining panels and

- Spreaders connected to the free ends of the partition walls

and keep the partition walls and the associated shaft retaining walls at a distance.

Shaft shoring boxes of this type are known from the European patent application EP 0 748 899 Al.

In the well-known shaft shoring boxes, the intermediate walls are firmly connected to the shaft shoring walls and form a rigid unit with them.

In a brochure from Emunds & Staudinger GmbH entitled "THE ARCHITECTURE PROFESSIONALS in the medium and magnum classes", edge-supported arranging boxes for trenches are described, which consist of two arranging panels that are kept at a distance by hinged struts. Connecting profiles with two parallel walls are arranged on the vertical edges of the arranging panels, between which the ends of the struts and stabilizers are hinged. The connecting profiles transfer the forces acting on the arranging panels to the struts. The stabilizers act like return springs to ensure that the struts are at right angles to the arranging panels in the normal state. When the arranging boxes are dismantled, the arranging panels can each be raised independently of one another by a limited amount.

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In the walls of the connecting profiles, numerous holes are arranged one above the other in a row for fastening the strut bearings and the stabilizers.

For trench shoring, shoring panels of different lengths are produced, but these are provided with the same connecting profiles on their vertical edges, so that the same spreading system can be used for shoring boxes whose shoring walls are 2 to 4 m long.

The invention is based on the object of creating a shaft shoring box which can be constructed quickly and whose length can be adapted to requirements.

This object is achieved according to the invention in that the shaft retaining walls are formed by trench retaining plates, on the vertical edges of which connecting profiles are arranged, which have two parallel walls, between which the intermediate walls are inserted and fastened with as little play as possible.

The shaft shoring box according to the invention is therefore manufactured using trench shoring panels known per se, in that the intermediate walls are dimensioned in such a way that they can be inserted between the walls of the connecting profiles at the edges of these panels with as little play as possible. The intermediate walls are preferably attached to the shaft shoring walls using bolts that are inserted through holes in the walls of the connecting profiles. In this way, the shaft shoring boxes can be assembled from intermediate walls and parts of the trench shoring device.

In a preferred embodiment of the invention, the partition walls are each made up of a vertically running rectangular profile, to the wide side walls of which steel sheets are welded that project towards the shaft retaining wall, the distance between which is dimensioned such that their outer sides rest against the inner sides of the two walls of the connecting profiles with as little play as possible, and to the narrow sides of which facing the trench a connecting profile is welded, between the walls of which the struts of the shaft retaining box are hinged.

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Preferably, spacer pipe sections are welded between the protruding steel sheets. These pipe sections are aligned with the holes in the walls of the connecting profile and serve to accommodate the fastening bolts. The pipe sections make it easier to attach the bolts and prevent them from becoming dirty during excavation work.

Reinforcing plates are preferably arranged at intervals between the two walls of the connecting profile. The steel sheets that can be inserted into the connecting profile are then divided into grids of reinforcing plates. The reinforcing plates give the arrangement the necessary strength.

Preferably, a deflector plate extending to the inside of the shaft retaining wall is attached below the connecting profiles of the shaft retaining wall on the outer broad side of the rectangular profile, which forms the lower section of the partition walls and prevents soil from entering the area enclosed by the shaft retaining box. Preferably, the deflector plate extends to near the lower edge of the shaft retaining wall.

The deflector plate should be supported against at least one stop which is attached to the inside of the shaft retaining wall in order to be able to bear sufficiently high loads.

In the following description, an embodiment of the invention is explained in more detail with reference to the drawings. The drawings show in

Fig. 1 is a plan view and

Fig. 2 a front view of the shaft shoring box according to the invention,

Fig. 3 a front view and

Fig. 4 a top view of a shoring box with two adjacent

the coupled partition walls at the ends of each shaft shoring panel,
Fig. 5 a side view and

Fig. 6 is a front view of a partition wall;

Fig. 7 a top view of a corner of the shaft shoring box,

Fig. 8 a plan view of a partition wall and

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Fig. 9 is a view along section line IX-IX in Fig. 5.

Fig. 1 shows a plan view of a trench shoring box 1 and an adjoining shaft shoring box 5. The trench shoring box 1 is made up of two trench shoring panels 2, which have connecting profiles 3 on their vertical edges. These connecting profiles 3 have two walls, between which the ends of struts 4 are mounted so that they can pivot through small angles.

The shaft retaining walls 6 correspond to the trench retaining plates 2 and have connecting profiles 7, between whose walls intermediate walls 8 are inserted and fastened by means of bolts.

As shown in Fig. 8, each partition wall 8 is made up of a vertically running rectangular profile 11, to the two side walls of which projecting steel sheets 12 and 13 are welded to the shaft retaining wall 6, the distance between which is such that their outer sides come into contact with the inner sides of the two walls of the connecting profiles 7 with little play. On the narrow side of the rectangular profile 11 facing the middle of the trench, a connecting profile 14 is arranged to accommodate the struts 9 of the shaft retaining box 5. Between the projecting steel sheets 12 and 13, spacer pipe pieces 15 are welded, which are aligned with the holes in the walls of the connecting profiles 7 and which serve to accommodate fastening bolts.

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As shown in Fig. 6, stiffening plates 16 are arranged at intervals one above the other between the parallel walls of the connecting profiles 14, which correspond to the connecting profiles 7 of the shaft retaining wall 6 and the connecting profiles 3 of the trench retaining plates 2. In accordance with the arrangement of these stiffening plates 16, the steel plates 12 and 13 that can be inserted into the connecting profile are divided into grids of stiffening plates 16. The four projecting pairs of steel plates can therefore be inserted into the connecting profile 14 between the stiffening plates 16.

As shown in Fig. 2 and 3, the intermediate wall 8 extends close to the lower edge of the shaft retaining wall 6. Because the connecting profiles 3 and 7 are only arranged in the upper part of the trench retaining plates 2 and the shaft retaining walls 6, below the connecting profiles on the

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A deflector plate 17 extending to the inside of the shaft retaining wall is attached to the outer broad side of the rectangular profile 11. This deflector plate 17, which can be seen in particular in Figs. 8 and 9, rests with its free end on a stop 18 which is located on the inside of the shaft retaining wall 6 and whose contact surface is aligned with the outside of the connecting profile 7.

As shown in Fig. 3 and 4, a shaft retaining box 5 with a larger distance between the shaft retaining walls 6 can be constructed by connecting two mutually coupled intermediate walls 8 and 8' to the connecting profiles 7 of the shaft retaining wall 6.

List of reference symbols:

1 trench shoring box

2 Shoring plate for the trench

3 Connection profile of the trench retaining plate (2)

4 Spreaders of the trench shoring box (1)
5 Shaft shoring box

6 Shaft retaining wall

7 Connection profile of the shaft retaining wall (6)
8.8' partition wall

9 Spreader of the shaft shoring box (5)

10 bolts

11 Rectangular profile

12 Sheet steel

13 Sheet steel

14 Connection profile of the partition wall (8)
15 Pipe section

16 Stiffening plate

17 Deflector plate

18 stop

Claims (8)

1. Shaft shoring box for a shoring device with trench shoring plates ( 2 ) arranged at a distance from each other, consisting of - two parallel shaft retaining walls ( 6 ) which run in the longitudinal direction of the trench and at the ends of which intermediate walls ( 8 ) are arranged which run transversely to the trench and fill the gaps between the shaft retaining walls ( 6 ) and the narrower trench retaining plates ( 2 ) and - struts ( 9 ) connected to the free ends of the partition walls ( 8 ) and keeping the partition walls ( 8 ) and the associated shaft retaining walls ( 6 ) at a distance, characterized in that the shaft retaining walls ( 6 ) are formed by trench retaining plates ( 2 ), on the vertical edges of which connecting profiles ( 7 ) are arranged, which have two parallel walls, between which the intermediate walls ( 8 ) are inserted and fastened with as little play as possible. 2. Shaft shoring box according to claim 1, characterized in that the intermediate walls ( 8 ) are attached in an easily detachable manner by means of bolts ( 10 ) penetrating the two walls of the connecting profiles ( 7 ). 3. Shaft shoring box according to claim 1 or 2, characterized in that the intermediate wall ( 8 ) is composed of a vertically extending rectangular profile ( 11 ), to the wide side walls of which steel sheets ( 12 , 13 ) projecting towards the shaft shoring wall ( 6 ) are welded, the distance between which is dimensioned such that their outer sides rest against the inner sides of the two walls of the connecting profile ( 7 ) with as little play as possible and on the narrow side of which facing the trench a connecting profile ( 14 ) is arranged, between the walls of which the spreaders ( 9 ) of the shaft shoring box ( 5 ) are articulated. 4. Shaft shoring box according to claim 3, characterized in that spacer pipe pieces ( 15 ) are welded between the projecting steel sheets ( 12 , 13 ), which are aligned with the holes in the walls of the connecting profile ( 7 ) and which serve to receive the fastening bolts ( 10 ). 5. Shaft shoring box according to one of claims 1 to 4, characterized in that stiffening plates ( 16 ) are arranged one above the other at intervals between the two walls of the connecting profile ( 7 ) and the steel sheets ( 12 , 13 ) which can be inserted into the connecting profile ( 17 ) are divided into grids of the stiffening plates ( 16 ). 6., Shaft shoring box according to one of claims 1 to 5, characterized in that a deflector plate ( 17 ) extending to the inside of the shaft shoring wall is attached below the connecting profiles ( 7 ) of the shaft shoring wall ( 6 ) on the respective outer broad side of the rectangular profile ( 11 ). 7. Shaft shoring box according to claim 6, characterized in that the deflector plate ( 17 ) extends to near the lower edge of the shaft shoring wall ( 6 ). 8. Shaft shoring box according to claim 6 or 7, characterized in that the deflector plate ( 17 ) is supported against at least one stop ( 18 ) which is fastened to the inside of the shaft shoring wall ( 6 ) and its contact surface is aligned with the outside of the connecting profile ( 7 ).