DE7618041U1 - DEVICE FOR BUILDING DITCHES TO BE DRAWN IN THE SOIL - Google Patents

Description

of trenches to be dug in the ground

The invention relates to a device for installing Trenches to be created in the ground with vertical shoring supports provided on the side walls of the trench supported, horizontal planks or plates and opposing shoring supports in pairs horizontal trench struts of variable length that connect with one another · The invention also relates to a method for shoring trenches dug in the ground using such a device.

ACCOUNTS: DRESDNER BANK, ACCOUNT NK.CB07855 P0ST8CHECK HAMBURG 198523-204

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For mooring trenches dug in the ground it is known to support the soil laterally with planks, floorboards or panels that are above the vertical Shoring supports and the horizontal trench struts are stiffened. Generally will the aforementioned stiffeners of the planks or slabs are lowered as the trench excavation progresses. Here, however, it is difficult when encountering obstacles in the grave area, e.g. the canal route crossing pipes or cables, the construction of the trench reinforcement without interruption to bring down in such a place.

In another known device of this type, the earth pressure absorbing plates are on theirs vertical longitudinal edges guided in double rails in such a way that the respective inner plate is telescopic can be extended downwards. However, this known device is structurally very complex. It also causes difficulties, the horizontal trench struts as the excavation becomes deeper To attach double rails.

The invention avoids these disadvantages. Its underlying task is a device

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to propose building trenches in the ground, which is "at constructive simple and particularly inexpensive design and easy handling characterized in that The construction of the trench reinforcement was brought down without interruption in the case of obstacles in the trench area can be.

To solve this problem, the device is characterized in that the shoring supports are longitudinally displaceable with the ends of the trench struts connectable sleeves are performed.

Due to these features, the trenches can be built in that the trench is in one of the
uppermost sleeve excavated corresponding depth
is that then the trench walls are lined with planks, which are supported with sleeves and trench struts, to then through the sleeves
Use shoring supports that then the
Dig gradually deepened by about a plank width and lined with planks and
is provided with further sleeves as required, in order then to lower the shoring support accordingly, with the trench struts already installed

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remain stationary with their sleeves.

It is therefore important that a vertical relative movement of the shoring supports is possible without the horizontal trench struts must be moved along because the trench struts are not direct are attached to the Yerbau carriers, but rather to the sleeves in which the shoring supports are guided.

When the trench is excavated, a greater depth is reached, so that the next stiffening is carried out must be, a new sleeve is placed under the shoring support before lowering the shoring set. Together with the trench strut that connects this pair of sleeves with one another, can thus the earth pressure of the then lowest planks or slabs can be absorbed by the new reinforcement. It is then possible to lower the shoring supports further into the new sleeves.

In order to be able to block trenches of the usual depth, which is around 4.50 m, with the neuon device it is preferable to have short ones on the pairs of shoring supports and to provide long sleeves. The short sleeves take over the support in the lower trench area,

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and generally via a horizontal trench strut. The long sleeves are on top Place built in and connected to each other via two spaced-apart trench struts connected to create an initial guide for the shoring supports.

In order to easily prevent the sleeve from being lowered when the shoring support is lowered, For example, on the side of the sleeve facing the trench wall, a support plate can be attached for the respective adjacent top edge of the plank.

In order to connect relieved trenches from falling down, it is preferred if a support bracket is provided on the side of the sleeve facing the trench strut is attached.

The invention is explained in more detail below using an exemplary embodiment from which result in other important features.

Show in the drawings

Pig »1 schematically shows a top view of a Digging that with a fixture

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is built according to the invention,

I? Ig. 2 is a view of a vertical section the device of Fig. From the inside of the trench to Looking towards the side wall of the trench,

Pig. 3 shows a section along section line m-III of Pig. 2,

Pig. 4 the detail IV of FIG. 1 on an enlarged scale and

Pig. 5 shows a section along the section line V-V of FIG.

Fig. 1 shows, for explanation, a section of a trench 1, the side walls 2 of which via a device are installed, which essentially consist of panels, planks resting against the soil of the side walls or planks 3, on which there are several vertical shoring supports at a distance towards the center of the trench 4 anliegens Every pair of verb carriers 4 is via standard, horizontal, length-extending

indirectly changeable trench struts 5 / connected to one another. Depending on the depth of the trench 1, there are two or more of these for each pair of shoring supports 4

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Trench struts 5 are provided. The device described so far is conventional »

According to the invention, the shoring supports 4 are guided in longer sleeves 6 and / or shorter sleeves 7 (cf. also Fig. 2 to 5). A pair of longer sleeves 6 for the uppermost trench area is generally about two trench struts 5 connected to one another. The shorter sleeves 7 are for a trench strut 5 intended.

Fig. 5 shows that in the upper region of the sleeve on the side facing the plank wall 3, a support plate 8 is attached, which can be supported on the adjacent plank upper edge and move with it the sleeve prevents when the shoring support 4 is lowered. It can also be on the inside such a sleeve a contact bracket 9 be welded with its perpendicular leg a flange 10 of the trench strut 5 engages behind and ice falling of a relieved trench strut 5 prevented.

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According to a "preferred embodiment, the shoring supports in the uppermost sleeves 6 not directly, but in a displaceably mounted in the sleeve 6 Intermediate sleeve 11 performed, which is about twice the '

Length has the same as the sleeve that accommodates it 6.;

First of all, the trench is excavated, namely at stand-; solid ground to a depth of about 1.40 nw. If the ground is not stable, the trench is laid out in layers in each case only excavated so deep that the trench wall does not break in. The trench excavation is carried out conventionally by workers or by means of an excavator, for example over a length of about 4.50 m.

Then a first plank 3 is set up horizontally and on edge on each side wall, as is the case for example Pig. 5 shows. This plank is backed with a sleeve 6 at its ends and in the middle, which, as shown, is arranged vertically. This will put the pair of planks 3 on the three mentioned Stiffened points, the sleeves being connected to one another via trench struts 5. Then be further planks 3 under the bottom plank in each case set and, if necessary, a further trench strut 5 attached to each of the three points mentioned.

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The trench excavation is now deepened in layers by the width of a plank. Then a plank is placed on both sides of the side walls set under edgewise. By lowering the shoring supports 4, they are pressed against the trench wall. This lowering of the shoring supports can be done mechanically, for example by ramming or by alone Attachment of the grapple of an excavator used for excavation.

A depth of approx. 2.40 m is reached in which the The next stiffening has to be carried out, a short one is made before the lowering of the shoring supports Sleeve 7 set up, which transfers the earth pressure of the lowermost planks into the new reinforcement. This is a further lowering of the shoring supports 4 is possible.

In the preferred embodiment, after installation and bracing of the sleeves 6 and after Excavation to a depth of, for example, 2.40 m, the intermediate sleeves 11 inserted into the sleeves 6 lowered to the maximum and braced at their free ends

The dismantling is done in reverse order. To do this, the vertical shoring supports are pulled up by the width of the planks and the bottom planks are removed on both sides. After the soil has been refilled in layers and compacted, the vertical shoring supports are gradually pulled out again. When a short or long sleeve is reached, the trench struts are then expanded.

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Claims (1)

1 I * - 11 - Expectations 1. Device for digging trenches to be created in the ground with vertical skin carriers provided on the side walls of the G-rahens supported horizontal planks or plates and opposing shoring supports each paired together, horizontal, variable length trench struts, thereby characterized in that the Yerbauträger (4) längeversohieblioh in with the ends of the grave struts (5) connectable sleeves (6, 7) are performed. 2. Apparatus according to claim 1, characterized in that the uppermost sleeve (6, 7) of each Shoring support (4, 4) has two connection points, one above the other, for two trench struts (5). 3 * device according to claim 1 or 2 characterized thereby · shows that on the side of the sleeve (6) facing the trench wall (2) a support plate (8) for the adjacent plank top edge is attached. 7618041 11/25/76 4. Device according to one of claims 1 to 3, characterized in that for connecting and Supporting the grave struts (5) attached to the side of the sleeve (6, 7) with a contact bracket (9) is. 5ο device according to claim 1 to 4, characterized in that that at least the top trench strut (5) is connected to the sleeve (6) with a tensile member. 6. Apparatus according to claim 1 to 5, characterized in that the uppermost sleeve (6) with a axially displaceable intermediate sleeve (11) is provided which surrounds the shoring support (4) with play and at least twice as long as the sleeve (6) guiding it. 7. Apparatus according to claim 1 to 6, characterized in that the shoring supports (4) wide flange supports are, the lower end of which by cutting out a triangular web part, bending up of the cut-free chunky part and welding is wedge-shaped. 7618041 11/25/76 8. Apparatus according to claim 1 to 7, characterized in that the sleeves (6, 7) have a box profile. 7618041 11/25/76