EP0569723A1 - Device for sealing of ground - Google Patents

Abstract

The invention relates to a device for sealing ground, with a double-walled seal (2, 3) which is divided into individual segments (1) forming separate hollow test spaces (4), the double-walled seal (2, 3) for forming the individual segments (1) being subdivided by separating sills (5) which are formed by double-walled, raised edgings of the seal (2, 3) with a sealing cover (6). <IMAGE>

Description

The invention relates to a device for sealing floors according to the preamble of claim 1.

From DE 39 37 638 A1, a double-walled collecting trough for environmentally hazardous chemicals or the like is known, which, depending on the size, can be divided into sub-sections to be tested separately by welding corresponding sections of the base plate and cover plate to one another.

A double-walled sealing of floors is also known from the special print "New standard - double sealing for water-polluting liquids and special waste" of the GFA - Gesellschaft fürface-Abdichtung mbH, Hamburg (special printing from "Umwelt + Technik", issue 10 - 1990) , in which the surface to be sealed is divided into individual sectors or individual segments. According to the prior art, this subdivision is carried out by welding the two plastic plates.

In these known embodiments, there is first of all the risk that, if the weld seams separating the segments are not carried out correctly, substances which have penetrated the upper layer of the seal and have flowed into the intermediate cavity or test space will also flow into adjacent segments, because of the weld seam is only a "simple" barrier between the individual segments.

Furthermore, it is very expensive in the known embodiments to replace the segments affected in the event of damage.

For this purpose, the protective concrete, which is generally used as the top cover, must be pried open and the corresponding segment of the double-walled seal must be separated and removed.

Then a new sealing segment must be fitted and welded in before the protective concrete can be applied again.

The invention has for its object to design the generic device so that an improved and secure sealing of the individual sealing segments is ensured with each other and that the replacement of individual sealing segments is facilitated in the event of damage.

This object is achieved in that the double-walled seal for forming the individual segments is divided by thresholds, which are formed by double-walled edging of the seal with a sealing cover.

With the invention it is achieved that the individual sealing segments are also securely sealed from one another and any penetration of substances from adjacent sealing segments is prevented.

Furthermore, it is possible to easily replace individual sealing segments in the event of damage. To do this, the cover lying over the double-walled edging is removed and the corresponding segment, including the upper wall of the double-walled seal, is then lifted out of the floor. The bottom wall of the double-walled seal - which is usually still intact after a damage - remains in the floor. It is only cleaned. A prefabricated new replacement segment (but possibly also the cleaned and repaired "old" segment) is then inserted and the cover is replaced. This simplified replacement of individual segments compared to the prior art noticeably shortens the repair time of the seal and improves the use of the seal. If a segment is being replaced, the other area (even the directly adjacent segments) can be used without restriction.

Depending on the size of the individual sealing segments, the replacement can be carried out completely with the appropriate protective concrete layer. In the case of larger segments, the protective concrete layer and the upper wall of the double-walled seal are replaced in individual steps.

Advantageous further embodiments of the double-walled seal according to claim 1 can be found in the characterizing features of claims 2 to 7.

The distance of up to 5 cm between the individual segments, which is poured with mortar, concrete or the like, improves the interchangeability of the individual segments and prevents the risk of damage to a neighboring segment during replacement. Furthermore, the stability of the folds is increased.

By using a U-shaped profile for the cover and / or welding, soldering or gluing the cover to the double-walled seal, the risk of substances penetrating between the individual sealing segments is further reduced.

The flush closure of the cover with the base surface makes it easier to remove the cover when replacing individual segments.

Pulling the seal up on the wall above the level of the floor surface prevents substances from penetrating into the seal / wall space.

Finally, welding or soldering the double-walled seal at its open ends further improves the tightness of the seal and reduces the risk of substances penetrating into the cavity or test space located between the walls.

Figur 1

eine Draufsicht auf eine erfindungsgemäße Vorrichtung,

Figur 2

einen Vertikalschnitt gemäß der Linie I-I in Figur 1,

Figur 3

einen Vertikalschnitt gemäß der Linie II-II in Figur 1.

The invention is explained in more detail in the drawings. Show it:

Figure 1

a plan view of a device according to the invention,

Figure 2

2 shows a vertical section along line II in FIG. 1,

Figure 3

a vertical section along the line II-II in Figure 1.

A device for sealing floors according to Figures 1 and 2 consists of a double-walled seal 2 and 3, which is divided into separate test cavities 4 forming individual segments 1.

To form the individual segments 1, the double-walled seal 2 and 3 is divided by thresholds 5.

The thresholds 5 are formed by double-walled raised edges of the seal 2 and 3 with an overlying cover 6. The individual segments 1 of the device are filled with a protective concrete 10.

In order to form the test cavity 4 between the walls of the seal 2 and 3, spacer warts 7 are attached to the upper wall 3 of the seal 2 and 3. There can be a distance 8 of up to 5 cm between the individual segments 1, which is poured out with mortar, concrete or the like. To increase the stability of the edging, plastic anchors 14 can be attached to the lower wall 2 of the seal 2 and 3. At its upper end 12 of the gap 13 formed by the distance 8, the two lower walls 2 of the seal 2 and 3 can be welded or soldered together. The cover 6 can be welded or soldered to the upper wall 3 of the double-walled seal 2 and 3 (weld seam 9). The cover 6 can be flush with the bottom surface 11. The cover 6 can also be covered by the protective concrete layer 10.

In Figure 3, the double-walled seal 2 and 3 is pulled up to the level of the bottom surface 11. The lower wall 2 of the double-walled seal 2 and 3 can be fastened to the wall 15 by plastic anchors 14.

The double-walled seal 2 and 3 can be welded or soldered at its open ends 16.

Claims (7)

Device for sealing floors with a double-walled seal, which is subdivided into individual test cavities forming individual segments,
characterized,
that the double-walled seal (2, 3) for forming the individual segments (1) is divided by thresholds (5) which are formed by double-walled edging of the seal (2, 3) with a sealing cover (6). Device according to claim 1,
characterized,
that between the individual segments (1) there is a distance (8) of up to 5 cm, which is poured with mortar, concrete or the like. Device according to claims 1 or 2,
characterized,
that the cover (6) is formed from a U-shaped profile. Device according to claims 1 to 3,
characterized,
that the cover (6) with the double-walled seal (2, 3) is welded, soldered or glued. Device according to claims 1 to 4,
characterized,
that the cover (6) is flush with the bottom surface (11). Device according to claims 1 to 5,
characterized,
that the seal (2, 3) on the wall (15) by double-walled edging is pulled up to the level of the floor surface (11). Device according to claims 1 to 6,
characterized,
that the seal (2, 3) is welded or soldered at its open ends (16).

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