DE10250792B3 - Flood control system for buildings has supporting profiled grid around outside of building and covered by two pull out flexible tarpaulins connected pressure-tight to buildings with flood chamber in-between and with hydrostatic pressure - Google Patents

Abstract

The flood control system uses a controlled hydrostatic pressure compensation. In front of the outside wall of the building is a supporting profiled grid (6) covering the building openings and which can be covered by at least two flexible tarpaulins (7, 8) which can be lowered or extended from a storage container. The inner tarpaulin (7) is connected pressure-tight to the building foundation and the outer tarpaulin to a barrier wall (14) let into the ground around the building. The upper edges of the tarpaulins are hung from steel or plastics chains (9) or wall hooks and a flood chamber (17) open to the ground is kept free between the tarpaulins for rising ground water. Hydrostatic pressure compensation protects the building from rising water levels in the flood chamber. Controlled flooding into cellar maintains pressure control.

Description

The invention relates to a method and device for preventing floods in its manifestations Surfaces-, Backwater and rising groundwater for buildings according to the preamble of the claim 1. In particular, the ingress of surface water into buildings should be prevented become. A controlled hydrostatic pressure equalization within of the building should be taken into account become.

In addition to known flood barriers, such as dikes, transportable protective devices are known. This category includes bulkhead walls according to ' EP 1241299 A2 'as well as vertically extendable palisades according to' EP 0909853 A1 'and protective barriers such as those found in' EP 0854238 A2 ',' EP 0994219 A1 ',' EP 1174544 A2 'or' DE3527100 A1 'be proposed. These locking systems are limited in their effective locking height. If this is overcome by the flood, direct building protection is imperative to protect an individual building from the flood.

For sandbag barricades are generally associated with this purpose used with protective films, the films on the outer wall of the building be put on and fastened. Against the occurring static Existing building openings, such as door and window openings, sealed off by masonry, wooden planks or the like. These measures are complex and material-intensive and after the flood event has decreased often unusable.

Such a protection system is only on the defense against surface water aligned. The higher pollution caused by the flood through backwater (also called "seepage or capillary water ") and rising groundwater not taken into account here. Especially with a longer one Exposure to a flood flood therefore creates the risk that traffic jams and groundwater rising into the foundation walls and basements of one building penetrate, partially penetrate them and cause extensive damage. The risk is particularly increased if the hydrostatic Pressure of the rising groundwater the building is raised and in the course of the following Settlement process damages the structural analysis of the building. In this Situation it is common through a targeted flooding of the basement from the outside a hydrostatic pressure equalization to accomplish. This method is well known among experts, is not considered in terms of construction (see a. City of Bonn - "Schürmannbau"). According to current knowledge, the regulation of the groundwater level takes place in a flooded building individually according to the known structural statics or those assumed for older buildings Conditions through the use of portable pump systems (see a. City of Dresden - "Frauenkirche" in the aftermath of the Elbe flood of the century).

The method is also known that large-scale buildings (e.g. B. sports halls and warehouses, etc.) against the rising groundwater outgoing hydrostatic buoyancy due to weight load (sand fill, sandbag inserts, u. Ä.) the floor area tried to secure.

In order to reduce the material and time expenditure for the erection of sandbag barricades in front of buildings for the defense against surface water, with ' DE 4400870 A1 proposed a device in which rubber sheets in front of the building are detachably fastened in a channel body that surrounds the building. In the event of flooding, these rubber sheets are pulled up vertically on the building wall and attached to it. Door and window openings were previously closed in the usual way.

To ' DE 29510165U1 'The film webs are attached in an analog floor channel by the lower film web end being designed as a hose which is inserted into the channel and filled with water and is thus firmly anchored to the channel.

An analogue building security system using foil sheets that can be pulled out from below shows' DE 299 21 564U1 ', this proposal includes the design of the gutter as a basic concrete unit.

Also ' DE 35 27 100 A1 'provides a groove-shaped recess in which the plastic material web is inserted with the piping and fastened by a clamping profile.

In the first three proposed for building protection Fastening types are the foil sheets within the ground level Channel body stored.

In addition to the inevitable pollution of this protective films so stored are over longer time damage not be ruled out.

If only with the aforementioned protective agents the building can be protected from floods, but there are no active ones activities for one targeted hydrostatic building protection. Even if that Protective films are firmly anchored to the floor and building Function of this protective barrier by the rising behind the protective film Groundwater excavated and the barrier due to the enormous force destroyed.

With ' DE 92 19 067U1 A proposal for a security bulkhead for building, door openings or the like is also known, in which movable barrier elements in the manner of a roller shutter are provided. This system is very complex and ultimately only secures the building openings. Protection of the masonry against penetrating moisture is not guaranteed. There is also the danger that this device will be dented by floating substances, suspended matter and debris and thus become inoperative.

About Looking can be assessed that the previously known and proposed protective devices independently of their technical execution ensure only very limited protection against surface water. In case of use there are additional ones Precautions to secure building openings are necessary. Also have the previously provided flexible protective films and - do not plan any security reserves. With massive mechanical impact by Floating materials can tear the film and thus the protective device to destroy.

Furthermore, these protection systems are the Foundations against seeping backwater and the basement in front of you uncontrolled ingress of rising groundwater not secured. Protection limited so far on the usual Insulation of the foundations in the form of a "black" outer tub and in the event of water ingress taking into account the hydrostatic balance of the building for spontaneous pumping. Only if there are known permanently high groundwater levels additional construction and costly floor trays in the form of "white" trays or massive gravity foundations common.

The aim of the invention is for building one Effective protection method and a mechanism against it the massive impact of surface water (OW), backwater (SW) and rising groundwater (GW).

The construction of the protective device As far as structurally given, should protect the entire building and in its construction by one person, regardless of the available electrical or other energy, be easy and safe to use. Basically, it should with this device, protection of the outer walls of the building and the basement independent of existing building openings against unwanted water ingress.

The protection of the outer walls of the building should be ensured by flexible waterproof tarpaulins in the form of coated fabric sheets coverage up beyond the local maximum acceptable flood mark, plus a security reserve against Waves and similar situations can be guaranteed. Building openings, like door and window openings and Like., are to be recorded and secured statically. there the effect of hydrostatic water forces on the protective device is largely Restrict and on the building at least be minimized. In particular, the static stability of the building secure by a controlled if necessary Groundwater inlet in the basement area for hydrostatic pressure compensation he follows.

The protective device itself should both the accessible space in front of the building and the aesthetics of the building itself or not significantly impair it, but always ready for use on the building available his. Activation of the protective device when there is a risk of flooding should be possible in one-man or woman operation. Accordingly the facility should be simple, reliable and distinguish little maintenance-intensive construction and a time have a long service life.

The features to solve this Problems are summarized in the features of patent claims 1 and 2. Appropriate Embodiments of the device are in the subclaims 3 to 19 specified.

The method for active flood protection for a building or also building complexes that stand together in connection with the proposed facility is that flexible, opposite building openings supported, locking device extendable in the form of a tarpaulin on the building is stored, which is attached pressure-tight to the base in the active state and that this first (inner) tarp is a second, in the same Outer tarpaulin stored wisely is upstream, which - preferably in a coverable assembly duct - with one of the building foundations upstream, the building enclosing embedded in the ground, barrier wall is attached pressure-tight and that between these tarpaulins a flooding space for ascending Backwater and groundwater is kept open, via which a hydrostatic Pressure equalization between the flooding area and that on the outer tarpaulin flooding in the form of surface water is reached.

Another feature of the method for active flood protection is that the backwater targeted by one in its execution height to the one surrounding the building Soil type adapted, Barrier wall from the building retained and that to maintain a hydrostatic equilibrium of the building opposite the Pressure of the rising groundwater of the basement area over a defined inflow until the hydrostatic pressure equalization is reached flooded and the excess water continuously over a installed water drainage system is discharged to the outside.

According to this method, the device comprises, as already mentioned, three working groups for
surface water protection (OWS),
backwater protection (SWS) and
groundwater protection (GWS).

The surface water protection consists of at least two multi-layer composite tarpaulins attached one behind the other and a supporting grate profile arranged between the outer wall of the building and the inner first tarpaulin. The wing load-bearing surface of the supporting grate profile is partially limited to the building opening to be secured individually or in combination and ensures the static support for the tarpaulins.

The tarpaulins and the supporting grid profile are individually, in pairs or together permanently under the local or eaves aisle or in tarpaulin containers or in a closet or stored in a wall chamber on the building to be secured.

The supporting grid profile consists of metal, preferably light metal profiles with high static buckling and bending strength, or from equivalent plastic profiles. They are attached on suspension ropes made of steel or plastic, chains or by hinge connections. The tarpaulins consist of single or multi-layer, flexible, heavy flammable, durable, waterproof, tearproof, rubber or plastic coated fabric sheets in the assembly-related connection areas with eyelets are provided. The loose connection of the fabric sheets is extremely flexible and follows the shape of the outer wall of the building. The tear as well the tear resistance are extremely high and the risk of floating substances breaking through significantly reduced. This effect is due to the chamber or segmental arrangement of at least two tarpaulins necessarily reinforced.

Fastening the inner tarpaulin on the base of the building takes place on a pre-assembled quick-release profile rail. A massive one Rubber or plastic sealing profile between the quick release base profile and the building base prevents water penetration.

The pressure-tight clamping of the inner tarpaulin takes place with a quick-release attachment profile. In addition itself in the clamping surface both the quick-release base and the quick-release attachment profile longitudinal arranged rubber or plastic sealing profiles.

For easier handling and possible adjustment the quick-release attachment profile is attached to different floor profiles divided into individual segments. For this purpose, the abutting surfaces of the segments are mutually concave / convex and provided with a sealing element. Bracing the quick-release attachment profile with the quick-release base profile takes place by means of clamping bolts which are in the middle of the sealing surface of the Quick release base profile are attached. Are analogous to these clamping bolts Opening openings are provided in the quick-release attachment profile. The quick release attachment profile is either screwed to the clamping bolts or by means of Clamping bolts arranged on the quick-release attachment profile clamped. Toggle rocker arms are also conceivable here.

In one on the front of the building in the ground recessed barrier wall, following the floor profile of 'OF (surface) terrain' flush, assembled mounting channel is a constructive for tightening the outer tarpaulin same quick release profile rail as above. arranged. in the Floodfall becomes the outer second Use this quick release profile rail to plan as described attached pressure-tight to the barrier wall. Sealing is also carried out here the quick-release mounting rail against the mounting channel through a crushed rubber or plastic sealing profile.

As from the outer wall of the building to that in the The flooding space in the form of a recessed barrier wall open space to cover is, is the outer tarpaulin longer accomplished than the inner first tarp. In draped (shirred) or rolled up The lower part of the tarpaulin is folded up and up firmly lashed or fixed by means of Velcro fasteners to provide the necessary installation space for the due to assembly time in front of the outer tarpaulin keep the inner tarpaulin to be attached free.

The width of the tarpaulin extends preferably from one downpipe to the next and / or to one Tarpaulin containers, i.e. also around one or more building corners around. The pressure-tight seal at the edge of the tarpaulin is analogous to that horizontal fixed tension on the base of the building, however in the vertical direction immediately next to or behind the Downpipe and l or the tarpaulin container (closet or wall chamber). The fastening of the vertically arranged quick release profile rails is also carried out in the same way as horizontal mounting.

To protect the building with a continuous To make plans, especially around corner points, not possible active state horizontally draped (gathered) tarpaulins coming down from the place or eaves or not active state of vertically wrapped tarpaulin from the tarpaulin container pulled out. In the latter case, the tarpaulins are at the top on the building wall hung in hooks or screwed down with screws. Your attachment is also in guide rails, the one on the building installed.

It is also conceivable that the tarpaulins instead of in a tarpaulin container in a closet or one Wall chamber can be stored like a curtain. With this storage the tarps are over one at the building, preferably under the eaves and verge installed roller track system (panel traces) sideways pulled out and positioned.

When mounting the tarpaulin on only individual building sections with exclusively straight wall can the tarpaulins both horizontally and vertically Activation variant can be stored as a wound roll.

Coupled with the outer tarpaulin for defense the building is surrounded by surface water by a barrier wall embedded in the ground. The barrier wall embedded in the ground shields the building below 'OF terrain' within the respective backwater area and, together with the outer tarpaulin, forms a kind of 360 ° all-round protective shield.

So this is also the direct attack of the backwater on the building is prevented. At the same time the rising groundwater between the building foundation and the barrier wall in the flooding space open from below between the inner and outer tarpaulin rise up to the hydrostatic pressure equalization. In this way hydrostatic relief of the outer tarpaulin compared to the surface water reached. Is the floor area around the building around completely sealed, so there are openings in the flooding area for one controlled water passage to ensure hydrostatic Pressure equalization provided.

In cooperation with the above-ground protective device and the barrier wall embedded in the ground are in Basement area one or more overflow valve pipes as well as one to the outside Directed water drainage system, which as in the swamp hole deepest part of the basement is enough. If the water table rises above a predetermined critical mark and thus the risk of a hydrostatic Floating of the building, so takes place over the overflow valve pipe automatically controlled water supply to the basement area. The hydrostatic equilibrium of the building is restored from then on, when the water level in the basement is above the level of the outlet opening of the overflow valve pipe and the building surrounding rising groundwater levels, due to the out the dead weight of the building resulting static difference, offset followed freely. From a defined water level level will result in a further water level increase inside the building prevented and excess water continuously diverted to the outside. For this is the installed Water drainage system with a corresponding control switch with a coupled Swimmers equipped.

The constructive expansion of the proposed The following is an example of a basic diagram be clarified again. Show it

1 : Overall structure of the facility for a building in cross-section, 2 : Perspective cut with supporting grid, inner and outer tarpaulin and barrier wall embedded in the ground,

3 : Detailed perspective view with horizontally and vertically activated tarpaulins as well as their storage and fastening

4 : Wall bracket with reel, guide rollers, supporting grid and tarpaulin,

5 : Attachment of the quick-release base and attachment profiles for the firm clamping of the tarpaulins in an exploded view.

According to the principle diagram 1 there is a protective device on the building 1 from at least two on site 1.1 or eaves aisle 1.2 tarpaulin can be lowered 7 and 8th as well as a supporting grid 6 who the tarpaulin 7 and 8th statically supported against the attacking hydrostatic water forces. For this is the support profile grid 6 Arranged directly on the outer wall of the building and partially covers the building openings, such as windows, doors, etc.

The outer tarpaulin 8th has a longer guy length (h + b) and is at risk of flooding through the building openings, such as basement light well 2.1 and basement staircase entrance, on one level with 'OF terrain' into the ground 20 recessed barrier wall 14 by means of the quick-release composite rail 13 attached pressure-tight.

In the basement 2 there are one or more overflow valve pipes 4 going through the basement tub 3 through to the area of the rising groundwater. It is also located in the building 1 an installed water drainage system 5 with one by a swimmer 5.3 actuated control switch 5.2 , The water drainage system 5 stands with the overflow valve pipe 4 in close interrelation and transports the excess water to the outside.

The suspension of the supporting grid 6 and the two tarpaulins 7 and 8th below the place 1.1 or eaves aisle 1.2 done like 2 and 3 show, using suspension cables or chains 9 or hinges on reels 10.1 that on consoles 10 are stored. For fixing the spacing of the support profile gratings 6 and the tarpaulin 7 and 8th the suspension ropes or chains are placed one below the other 9 over on the console 10 mounted guide rollers 10.2 guided. The drive of the reel 10.1 can be done mechanically by hand using an attachable crank or additionally electromechanically. One on the consoles 10 or directly on site 1.1 or eaves aisle 1.2 attached cover 10.3 ) protects the console 10 together with their extensions and the tarpaulins that are normally not activated 7 and 8th before weather influences.

In order to achieve a low mass and a high resistance to bending and buckling, the support profile bars are 6.1 of the support grid 6 preferably made of aluminum or GRP pipe. H-profiles made. Their ends are rounded off so that they can lie against the outer wall of the building with a uniform, striking face and do not damage the tarpaulin lying directly on them.

The details of attaching the inner tarpaulin 7 shows 5 , This method of attachment is also used to attach the outer tarpaulin 8th related. The tarpaulins 7 and 8th consist of waterproof over the entire coverage quantity-added, fabric sheets. Between the quick release base 13.1 and the quick release attachment profile 13.2 prevent rubber or plastic sealing profiles arranged on the inside of the profile 13.1.1 and 13.2.1 a water passage through the receiving openings 13.2.2 ,

In 2 and 3 the simple design of the protective device against flooding is shown again schematically.

Under the eaves 1.2 of the building 1 is the reel 10.1 on the individual consoles 10 assembled.

In front of the building wall is partially on the existing building openings 1.4 , namely windows, doors and possibly other openings, limited supporting grid 6 attached. The support profile bars 6.1 each cover these existing openings and are covered by the tarpaulin in the event of flooding 7 and 8th surface water pressure against the building wall and thus statically support these tarpaulins.

The inner tarp 7 is by means of the quick release profile rail 13 pressure-tight on the base 1.3 of the building 1 attached.

The outer tarpaulin 8th is by means of the same quick release profile rail 13 within an assembly channel 15 pressure-tight on the barrier wall embedded in the ground 14 attached. If both tarpaulins are below the 1.1 or eaves aisle 1.2 draped (gathered) or wrapped in a tarpaulin container, this is how the quick-release profile rail is made 13 secured by appropriately adapted covers (not shown here) against contamination and risk of injury.

The height "h" of the tarpaulin 7 and 8th Experience has shown that it is based on the local maximum acceptable flood mark, plus a safety reserve against waves or similar situations. For covering the area in front of the building 1 to the barrier wall embedded in the floor 14 is the outer tarpaulin 8th extended by the covering length "b". In the draped (gathered) or wound-up state, this tarpaulin protrusion is folded up and secured using lashing straps or Velcro fasteners 8.3 attached.

By using at least two tarpaulins 7 and 8th and the upstream pressure-tight fastening of the outer tarpaulin 8th on the barrier wall 14 there is an open flooding area 17 , which is closely connected to the area of the rising groundwater. With sealed floors, e.g. B. by a closed barrier layer 18 are additional openings 19 provided the hydrostatic function of the flooding area 17 to ensure. In parallel with the increase in the surface water level 20.1 the groundwater level rises over time 20.1 , Due to the hydrostatic pressure of the surface water, the rising groundwater becomes like in a communicating system according to the "principle of connected vessels" behind that into the ground 20 recessed barrier wall 14 in the flooding area 17 pressed to the flood level and the outer tarpaulin 8th thus relieved of hydrostatic pressure.

Because at the same time as the rise in the groundwater level 20.1 according to the "Archimedes'principle" on the building 1 acting buoyancy forces, it is necessary to ward off building damage, the basement 2 to return to a hydrostatic equilibrium state by means of targeted flooding. This is achieved, as in 1 shown, over the overflow valve pipe 4 whose opening level corresponds exactly to the groundwater level from which the building 1 Static support in the form of controlled discharged groundwater is required to restore the necessary hydrostatic equilibrium. The excess water generated above the defined water level is eliminated with the installed water drainage system 5 outside the outer tarpaulin 8th pumped out. The water drainage system is controlled 5 via a control switch 5.2 with the help of the swimmer 5.3 , After the flood event has subsided, this can be done in the basement 2 water present through the suction element 5.1 down to the swamp hole 2.2 pumped into it and thus the basement 2 be drained again.

The supporting profile gratings arranged above 'OF terrain' 6 be together with the tarpaulin 7 and 8th with the reel 10.1 or afterwards gathered or rolled or dismantled and folded and the tarpaulins 7 and 8th under the cover 10.3 draped shirred or stored rolled up in a tarpaulin container.

1

building

1.1

verge

1.2

Traufgang

1.3

base

1.4

building opening

2

basement

2.1

Basement light shaft

2.1

slough

3

Basement sump

4

Overflow valve tube

5

Drainage system

5.1

suction

5.2

control switch

5.3

swimmer

6

Carrying planks

6.1

Supporting profile bar

7

Inner Plans

7.1

fold

7.2

eyelet

8th

Outer tarpaulin

8.1

fold

8.2

eyelet

8.3

Velcro

9

supporting cable or chain

10

console

10.1

reel

10.2

leadership

10.3

cover panel

11

wall hooks

12

chart container

13

Quick-rail

13.1

Quick-Basic Profile

13.1.1

Rubber- or plastic sealing profile

13.1.2

clamping bolt

13.2

Quick-release attachment profile

13.2.1

Rubber- or plastic sealing profile

13.2.2

receiving opening

13.2.3

clamping bolts

14

barrier wall

15

mounting channel

16

Rubber- or plastic sealing profile

17

floodplain

18

junction

19

Through opening

20

soil

20.1

movement direction the water level over time

0WP

Surface water level

SWP

Backwater level ^–1 (also called "seepage or capillary water")

GWP

Groundwater level

Claims (19)

Method of warding off floods in their manifestations surface, accumulation and rising groundwater for buildings, taking into account a controlled hydrostatic pressure equalization within the building to be secured, including flexible watertight barrier means in the form of a tarpaulin in front of the building's outer wall, characterized in that in front of the building's outer wall supporting profile grating covering the building openings ( 6 ) and before this at least two flexible tarpaulins ( 7 and 8th ), an inner and outer, lowered or laterally from a tarpaulin container ( 12 ) or wall cabinet or a wall chamber, the inner tarpaulin ( 7 ) on the base of the building ( 1.3 ) and the outer tarpaulin ( 8th ) with a the building ( 1 ) ring-shaped, in the ground ( 20 ) recessed, barrier wall ( 14 ) are connected pressure-tight and the top edge of the tarpaulin on suspension cables or chains ( 9 ) made of steel or plastic or on wall hooks ( 11 ) or hung on a fastening rail or hinge straps that between the tarpaulins ( 7 and 8th ) an open-water flooding area ( 17 ) kept free for the rising groundwater and a hydrostatic pressure equalization between the groundwater in the flooding area ( 17 ) and that on the outer tarpaulin ( 8th ) is caused by flooding and that through the barrier wall ( 14 ) infiltrating. Backwater is retained by the building foundation and that to maintain the hydrostatic equilibrium between the building ( 1 ) and the hydrostatic ground, accumulation and surface water pressure the basement ( 2 ) when a predetermined groundwater level is reached ( 20.1 ) flooded in a controlled manner via a defined inlet up to the hydrostatic pressure equalization and when this level is reached the excess water is continuously drained off. Device for applying the method according to claim 1, characterized in that under the local ( 1.1 ) or eaves aisle ( 1.2 ) at least two flexible tarpaulins ( 7 and 8th ) are provided, namely an inner and an outer tarpaulin that can be lowered or laterally from a tarpaulin container ( 12 ) or closet or a wall chamber can be pulled out and the upper edges of the provided suspension cables or chains ( 9 ) made of steel or plastic or wall hooks or fastening rails or hinges that can be hung between the inner tarpaulin ( 7 ) and the outer wall of the building that can be fastened to this 6 ) are arranged in front of the building ( 1 ) one that is flush with the site surface, the building ( 1 ) surrounding. Barrier wall ( 14 ) in the ground ( 20 ) is inserted that in the basement ( 2 ) one or more overflow valve tubes ( 4 ) are provided, which extend into the area of the rising groundwater, that in the building ( 1 ) an outward-facing water drainage system ( 5 ) it is provided that the inner tarpaulin ( 7 ) in the area of the building base ( 1.3 ) and the outer tarpaulin ( 8th ) on the barrier wall ( 14 ) can be attached in a pressure-tight manner, the inner and the outer tarpaulin then being used for hydrostatic pressure equalization of the outer tarpaulin ( 8th ) an open-water flooding area ( 17 ) limit and that the basement ( 2 ) with a waterproof basement tub ( 3 ) is executed. Device according to claim 2, characterized in that for fastening the inner tarpaulin ( 7 ) on the base of the building ( 1.3 ) on this horizontally arranged quick release profile rails at the transition to the site surface ( 13 ) are attached pressure-tight. Device according to claim 2, characterized in that for fastening the outer tarpaulin ( 8th ) horizontal and pressure-tight in one assembly channel ( 15 ) the barrier wall ( 14 ) arranged quick release profile rails ( 13 ) are provided. Device according to claim 2, characterized in that for fastening the tarpaulins ( 7 and 8th ) Quick-release rails arranged vertically next to each other ( 13 ) pressure-tight on the building ( 1 ) are attached. Device according to claim 3, 4 and 5, characterized in that between the outer wall of the building and the quick-release profile rail ( 13 ) a rubber or plastic sealing professional 1 (16) is squeezed. Device according to claim 2 and 4 , characterized in that the barrier wall ( 14 ) the building ( 1 ) shields below the terrain surface within the respective backwater area against the horizontally pressing backwater. Device according to claim 2, characterized in that the supporting profile grate ( 6 ) partially or in combination covers the building openings, namely windows, doors and possibly other openings. Device according to claim 2, characterized in that the tarpaulins ( 7 and 8th ) consist of single or multi-layer, flame-retardant, long-lasting, tear-resistant, rubber or plastic-coated fabric webs and in the connection-related connection areas with eyelets ( 8.2 ) are provided. Device according to claim 2 and 8, characterized in that the support profile bars ( 6.1 ) of the supporting profile grate ( 6 ) made of metal, preferably light metal tube profiles, or of equivalent plastic profiles that are roller-like on suspension cables or chains ( 9 ) made of steel or plastic or connected to each other like a hinge. Device according to claim 2, characterized in that the supporting profile grate ( 6 ) and the tarpaulins ( 7 and 8th ) individually, in pairs or together under the location- ( 1.1 ) or eaves aisle ( 1.2 ) on the building ( 1 ) on a manually or additionally electromechanically driven reel ( 10.1 ) attached and that for the rope or chain guide of the tarpaulins ( 7 and 8th ) on the console ( 10 ) Leadership roles ( 10.2 ) are arranged. Device according to claim 2, 3 and 5, characterized in that the quick release profile rails ( 13 ) is divided into individual clamping segments and that the longitudinal connection end faces of the quick-release profile rails ( 13 ) for the tarpaulin ( 7 or 8th ) are mutually concave / convex. Device according to claim 2, 3, 5 and 12, characterized in that a quick-action base profile ( 13.1 ) and a quick release attachment profile ( 13.2 ) are provided and that the quick release base profile ( 13.1 ) for clamping with the quick-release attachment profile ( 13.2 ) Longitudinal clamping bolts ( 13.1.2 ) contributes to the rubber or plastic sealing profiles on both sides ( 13.1.1 and 13.2.1 ) in the quick release profile rail ( 13 ) are arranged. Device according to claim 2 and 13, characterized in that in the quick-release attachment profile ( 13.2 ) for the clamping bolts ( 13.1.2 ) Receiving openings ( 13.2.2 ) are provided and that the quick-release attachment profile ( 13.2 ) with the clamping bolts ( 13.1.2 ) of the quick release base profile ( 13.1 ) screwable or in the clamping bolt ( 13.1.2 ) existing holes through clamping bolts ( 13.2.3 ) or can be clamped using a rocker arm. Device according to claim 2 and 11, characterized in that the tarpaulin ( 7 and 8th ) draped in the passive state, ie gathered or rolled and the lower part of the outer tarpaulin (s) ( 8th ) can be folded up and lashed or fastened with Velcro. Device according to claim 2, characterized in that the tarpaulins ( 7 and 8th ) in its range, preferably from one downpipe to the next or from one end of the building to another end of the building or from a tarpaulin container ( 12 ), a closet or a wall chamber to the downpipe or to another tarpaulin container ( 12 ) or a closet or a wall chamber around one or more building corners. Device according to claim 2 and 16, characterized in that the tarpaulin ( 7 and 8th ) are stored curtain-like in roller tracks when stored in a closet or a wall chamber and that these roller tracks under the local ( 1.1 ) and eaves aisle ( 1.2 ) on the building ( 1 ) are attached. Device according to claim 2, characterized in that with the floor completely sealed around the building in the area of the flooding space ( 17 ) Openings ( 19 ) are provided for a controlled groundwater passage to ensure the hydrostatic pressure equalization. Device according to claim 2, characterized in that the in the building ( 1 ) outward-facing water drainage system ( 5 ) a control switch ( 5.2 ) and swimmers ( 5.3 ) and an intake element ( 5.1 ) that goes down into a swamp hole ( 2.2 ) as the lowest point in the floor of the basement ( 2 ) enough.