EP3004464A1

EP3004464A1 - Sealing system

Info

Publication number: EP3004464A1
Application number: EP14728187.7A
Authority: EP
Inventors: Michael ALTSCHÄFFL
Original assignee: Hagn Umwelttechnik GmbH
Current assignee: Hagn Umwelttechnik GmbH
Priority date: 2013-06-04
Filing date: 2014-06-04
Publication date: 2016-04-13
Anticipated expiration: 2034-06-04
Also published as: WO2014195362A1; EP3004464B1; PL3004464T3; DE102013210341A1

Abstract

Sealing of bed and bank regions of a body of water in a water-conducting state. In order to provide a seal which is suitable for different throughflow quantities, a sealing system (10) has a working platform (12) which is arranged above a water region (24) of a region (26) of a body of water to be sealed. A first feeding device (14) outputs webs of a flexible concrete formwork cover (30) on a working area (28). The webs are connected by way of a connecting device (16) to produce a continuous sealing surface (33). A lowering ramp (18) is fastened with a first end (34) to the working platform and can be lowered in the direction of the bottom of the body of water with a second end (36) which lies opposite the first end, in order to extend obliquely downwards in the lowered state (P7). The lowering ramp assists the sealing surface during the introduction into the water and during the depositing on the bottom of the body of water. A second feeding device (20) introduces a concrete material into cavities in a central region (38) of the concrete formwork cover which is situated on the lowering ramp, in order to lower the concrete formwork cover over the lowering ramp until contact on a bottom surface (40) of a body of water. The working platform is moved along the body of water by way of a movement device (22).

Description

sealing system

The present invention relates to the sealing of sole and slope areas of a water body in a water-bearing state, and in particular relates to a

Sealing system and method for sealing.

An example of a body of water are channels that are used, for example, to carry or transport water, such as water

Supply hydroelectric power plant. Channels are also known for other purposes, for example as irrigation channels or as drinking water transport channels. In addition, canals are also known as waterways. To avoid or reduce a loss of water, for example, by seeping into the adjacent soil, or are to reduce

Seals provided in the sole and slope area. For the subsequent

Sealing, for example, for remedial purposes, seals are applied, for example, to the bases after the area, for example, at channels, drained. However, it has been shown that the draining is associated with a lot of effort. Therefore sealing methods are used in which the water does not have to be drained. For example, from DE 20 2008 014492 Ul a method is known in which a channel seal is first composed outside the water of individual segments and then lowered by means of a generated differential water level into the water on the surfaces to be sealed. The lowering by means of a differential water level means at larger flow rates, and even with fluctuating flow rates, that additional measures must be provided to provide a bridge, for example in the form of a bypass. There is therefore a need to provide a water-tight seal of a body of water suitable for different flow rates.

This object is achieved by a sealing system for sealing sole and slope areas of a water body in a water-bearing state and a method for sealing sole and slope areas of a water body in the water-bearing state according to one of the independent claims. exemplary

Embodiments are presented in the dependent claims.

It should be noted that the features and advantages described below apply to both the sealing system and the method. Characteristics,

Connections and advantageous effects and aspects described in connection with the sealing system also apply to extension and vice versa. According to the invention, a sealing system for sealing sole and

Embankment areas of a water body provided in water-bearing state. The sealing system comprises a working platform, a first feeding device, a connecting device, a lowering ramp, a second feeding device, and a moving device. The work platform is arranged above a water area of a water body to be sealed and comprises a work surface. The first feeding device is designed to deploy webs of a concrete formwork envelope on the work surface, wherein as a concrete formwork envelope a web-shaped flexible

Concrete formwork cover with a plurality of cavities for receiving a

Concrete material is provided. The connecting device is designed to connect the plurality of webs of the concrete formwork shell to a continuous sealing surface. The lowering ramp is held at a first end to the work platform and with a second end opposite the first end toward the body of water lowered. In a first lowered state, the lowering ramp extends obliquely downwards from the working platform in the direction of the water bottom. The lowering ramp is designed to at least partially support the sealing surface when it is introduced into the water and when it is deposited on the bottom of the river. The second Zuiuhrvorrichtung is adapted to introduce a concrete material in at least a portion of the cavities in a central region of the concrete shuttering shell located on the lowering ramp for a successive lowering of the concrete shuttering casing on the lowering ramp to the support on a body of water. The movement device is designed, the

Working platform to move along the water.

The lowering ramp is attached to the work platform in one example with the first end.

The term "water" refers in particular to canals, but also to other aquiferous structures, and in particular also to stagnant waters, for example also reservoirs for water. The term "waters" also refers to port areas.

The provision of a concrete formwork envelope and the subsequent filling of the

Cavities of the concrete formwork envelope and simultaneous lowering and laying on the surface to be sealed means, for example, that the water in its actual function of carrying water is only minimally limited during sealing. Since the concrete shuttering shell is provided on the work platform and there the connection of individual tracks, or segments to a larger area

is made, a continuous sealing surface can be generated, which is then introduced into the water. The provision on the work platform has the advantage that the joining of individual segments in a controlled area above the water takes place, so that connecting individual segments at the base of the water body is no longer required. The Veriuilen the Betonschalungshülle with concrete material means on the one hand that the

Concrete formwork shell is lowered to the bottom of the water body, and on the other hand, that the B etonschal ungshül le there is held securely due to its own weight, or permanently provides a secure seal there. In this case, the concrete scarf ungshül le and the application still liquid or at least viscous concrete to adapt to any contours of the base and then harden in this adapted form.

By "work platform" is meant a surface that allows work to be done, for example, assembling webs into a large seal and filling the concrete formwork envelope, for example, the work platform is floating.One other example, the work platform is provided with height adjustable supports In another example, the work platform is formed on the lateral water or canal shore areas, for example, as a transverse bridge platform, the waterbody or channel slopes supported eg on a channel on the channel bottom ,

Kanalböschungskronenbereichen rests.

The "first feeder device" has, for example, storage devices for storing webs of the concrete shuttering sheathing, eg rolls mounted on rollers The first feeder device may for example comprise the bearing device or be connectable to a bearing device, eg with a mobile storage device, eg on a truck or Trailer on the shore area, or even on a ship or pontoon floating on the water.

In one example, the feeder provides webs of the concrete formwork sheath. For example, the first feeder brings out webs of the concrete formwork envelope.

The "connection device" may be a work surface area used to join, e.g., weld, sew or glue webs together, and the connection is made outside the water level and also without loaded support material.

In one example, the connection device connects multiple lanes of the

Concrete formwork shell with each other. The webs are a continuous sealing surface connected to the dimensions of the watercourse, in particular the

Channel cross section is adjusted. For example, the sealing surface has a width which corresponds to the base surface length of the water cross section, e.g. of the channel cross section, i. the length of the lateral slopes or banks and the length along the

Waters / Kanaigrundfläche across to a body of water / channel direction.

In one example, the lateral segments of the sealing surface are rolled up after being joined to the central region (see also below). In other words, it is e.g. a continuous sealing surface made in a region that is later deposited in the region of the channel base. The lateral areas, which later rest on the lateral slope bevels, while connected to the central, continuous area, but they are in the longitudinal direction

interrupted so as to be able to roll up individual segments. The rolling takes place from the outer longitudinal edges inwards, ie in the direction of the sloping embankment.

In one example, the sealing surface located on the work platform forms a continuous seal or area with the already laid areas. With the connecting device can thus assemble a continuous seal. The connection is made by connecting the individual tracks together outside the water.

The "lowering ramp" refers to a device having a tiltable surface on which the material in the form of the concrete formwork sheath can be lowered, and also at least partially filled, down from the working surface area In one example, the lowering ramp is held at its lower end, or the lower region, with buoyancy means, and a space is provided between the lower end and the waterway or channel bottom.

In one example, a portion of the continuous one is on the lowering ramp

Placed sealing surface. In one example, the lowering ramp is formed with a smooth surface that forms a slide for the successive insertion of the concrete formwork sheath. The

Betonschalungshülle can for example at least partially filled with support material, the slope Iiinabrutschen in the direction of the body of water or canal. The smooth surface is formed for example by an exchangeable plastic sealing strip. In another example, the smooth surface is formed by metal plates or formwork panels. The "second feeder" refers to a device by means of which a carrier material can be introduced into the concrete formwork envelope, concrete being provided as the carrier material, in one example the material bentonite is provided for the concrete material The second supply device may also be configured as a pumping device for conveying material from a deposit to the filling site, eg as a concrete pump or cleaning pump The concrete material may also be referred to as a supporting material or filling material or sealing material.

In one example, the second delivery device delivers a support to the sealing surface and inserts the support into the concrete formwork sheath, i. in the trained with appropriate recordings sealing surface. For example, the second feeder feeds bentonite and introduces bentonite into the concrete formwork envelope.

The term "concrete material" is also understood as meaning other bulk materials which can be introduced as bulk material and which, when filled, have a composite effect (sealing effect) which is greater than the composite action as bulk material. The term "concrete material" is also understood to mean bulk material that can be introduced into the casings. The term "concrete formwork envelope" refers to a mat-shaped material which, like a quilt, has at least one intermediate space which can be filled as a cavity with a filling material Have subdivisions. Concrete formwork covers are known as construction elements for building with water, eg for the attachment of dams. For this purpose, two interconnected, eg interwoven fabrics are provided, for example synthetic fabrics which serve, for example, as formwork for the introduced concrete or mortar. In the filled and set condition, the mat-shaped concrete formwork envelope is, for example, of a relatively uniform thickness. The concrete formwork sheath serves as a lost formwork. In another example, two spaced-apart walls delimiting the cavity are connected to connection areas, eg, bulkheads or spacer elements made of tension elements and / or pressure elements.

As concrete formwork casings Incomat® mats from Huesker Synthetic GmbH are used in one example. Of course, other products from other manufacturers can be used. As a concrete shuttering sheath, in another example, two sealing sheets (KDB, plastic sealing sheets) are locally connected to each other to intervene

To form cavities.

The "movement device" "denotes a device with which the entire working platform can be moved or at least the part with the ramp and, if there is a concrete formwork cover which is already connected to the concrete formwork cover in the water, also the adjoining area of the work platform ,

By way of example, the movement device is designed to move the working platform along the body of water for a successive sealing of the sole and slope areas in a water-conveying state.

In one example, the moving means is a winch device with ropes, chains or other tension members fixed at points on the shore or on the shore

Waters / channel bottom, so as to connect the work platform e.g.

to draw against the flow direction of a body of water to be rehabilitated, for example a channel. In another example, winds are temporarily anchored on the shore, which Pull the work platform along the water, eg along the canal. In a further example, a mobile substructure is provided as a movement device, with which the working platform can be supported and moved on the bottom of the water or the channel bottom, the lateral slopes or the lateral bank areas.

The water is, as already mentioned, for example, a channel. The water direction is then a channel direction, the river bottom a channel bottom, the bottom of the water a channel bottom, and the water body surface area a channel.

For example, in a channel, the first end of the lowering ramp is opposite the second end in the channel direction.

The term "body of water" encompasses sole areas and lateral embankment areas.The surface of the riverbed is also known as the water bottom.

The term "above a water zone" refers to providing a dry area of the work surface to, for example, apply material and also to perform the appropriate work, in which case the surface may actually be located above the water level, or even In any case the working platform is located at the upper level of the water level, According to one example, the concrete formwork sheath has lateral areas which laterally adjoin the central area in the water direction, and which during the Lowered over the lowering ramp are rolled up.

This makes it possible to provide a transversely enlarged seal above the water level which, in a reduced range when introduced into the water, ie during lowering, impairs the flow of water. According to one example, the lateral areas are rolled up during application on the work surface and during application on the lowering ramp.

The working platform and the lowering ramp can thereby be made narrower and do not have to extend over the entire width of the water body. The rolled-up areas of the concrete formwork envelope ensure a continuous seal over the entire width of the water base area to be sealed.

In one variant, the working surface of the work platform is wider designed to fully interpret the seal can. The work surface of the work platform is designed, for example, as wide as the water width; in one example, the working surface of the work platform protrudes beyond the water's edge. However, the lowering ramp is narrower, so that the seal when lowering to the channel bottom due to the rolled-up side areas can rest on the narrower lowering ramp. The lowering ramp is, for example, as wide as the channel base, or narrower than the channel base.

The advantage of a narrower lowering ramp is that an existing

Water flow with lowered lowering ramp is only minimally affected. The water can flow past the lowering ramp at the side.

The seal is introduced in the middle area on the lowering ramp, while the lowered seal is connected to the already introduced seal on the channel grund. The water flows sideways. After a segment or area is deposited on the bottom of the channel, the side rollers can be unrolled to seal the area of the slopes as well. After unrolling, unrolling of the unrolled areas may occur with the adjacent (unrolled) area. For this purpose, for example, film zips can be provided, which can be operated under water.

A flow through the canal or water area is certainly possible at any time. According to one example, after laying the central area, the lateral areas can be rolled out under water and the concrete formwork sheath is also in the lateral one

Water basins filled with concrete material for sealing lateral bank slopes of the water body.

For example, the term lateral bank slopes refers to the lateral body basins, i. the lateral embankment areas of the water body, such as a channel understood.

According to one example, the first end of the lowering ramp on the working platform is vertically movable, e.g. temporarily releasably held, and is in a second, e.g. dissolved state at least vertically movable. The lowering ramp can be lowered into the water with its first end and can be erected again with the first end and can be reconnected to the working platform.

According to one example, the lowering ramp is for a temporary interruption of the

Sealing operation from the first lowered state to the second state movable. The lowering ramp is lowered in the second state into the water and arranged in the vicinity of the body of water.

The lowering ramp is, for example, aligned in the water parallel to the flow direction, e.g. to minimize the water / channel cross-section, for example in situations where an increased volume of water through the body of water, e.g. to flow through the channel. The lowering ramp can be, for example, flat on the

Body of water, for example laying the channel underground, e.g. for a rest period of work, for example overnight.

For example, the lowering ramp is lowered to a state in which it is in

Aligned substantially parallel to the water flow. The indication

"Approximately" includes, for example, a range of a maximum of ± 30 °, for example + 15 °, or a maximum of ± 10 °, or a maximum of ± 5 °. In one example, the working area in the longitudinal direction of the body of water, such as the channel, is at least as long as the lowering ramp is wide. The lowering ramp can continue on the lowering of the upper end of the

Work platform attached, e.g. be suspended, for example, be articulated connected. The lowering ramp, i. Work ramp can also lower and erect itself. The lowering ramp may continue to be connected to the work platform during lowering, i. be mechanically held on the work platform, however, the upper first end, and thus the entire lowering ramp is lowered. In one example, it is provided that the lowering ramp rests freely on the bottom of the water without being held on the platform. To secure the lowering ramp at the channel bottom temporarily against the

Be held water flow.

According to one example, for a temporary interruption of the sealing process, a part of the not yet laid concrete formwork shell remains on the lowering ramp and is temporarily fixed on the lowering ramp. The lowering ramp can with the

Betonschalungshülle be lowered into the water in the direction of the body of water.

According to one example, the concrete formwork sheath is formed with detachable and reconnectable joint portions to temporarily separate the still unfolded concrete shell liner on the lowering ramp from the concrete formwork sheath on the shroud

To allow working surface.

The connection areas are, for example, zippers across the width of the

Seal. Connection areas can also be designed as intended separating joints, so that the seal can be separated if necessary across the width of the seal. Then the lowering of the lowering ramp and thus the seal located thereon can be done. By raising the lowering ramp, the severed end of the seal (the rest is yes with the seal on the channel bottom and the side Sloping connected) get back outside the water level to re-attach sealing material to this area. Thus, the separation can be made reversible again. The joining can be done for example by sewing. For this example, manually guided Vernähapparate be provided.

In one example, the lowering ramp may be fitted with the concrete formwork sheath on the

Body of water, e.g. Channel reason are stored.

In one example, the not yet laid concrete formwork sheath before lowering with ropes connected to - after lowering and raising the lowering ramp - at least one not yet laid area of the concrete formwork cover from the water to lift or pull on the work platform.

According to one example, floating bodies are provided on the lowering ramp, and for lowering the lowering ramp, at least part of the floating bodies can be flooded.

According to one example, the lowering ramp is adjustable in inclination at the

Work platform kept. According to one example, drainage devices are provided on the work platform with which the filled concrete formwork cover can be lowered in a controlled manner.

As discharge devices, for example, rope winches are provided on the working platform at an end region which is arranged opposite the lowering ramp.

According to one example, the body of water is a canal, a waterway and / or a harbor area.

According to the invention is also a method for sealing sole and

Embankment areas of a water body provided in water-bearing state. The method comprises the following steps: a) applying a plurality of webs of a concrete formwork shell on a work surface, wherein the working platform above a water area of a

is arranged to be sealed and comprising a working surface, and wherein a concrete formwork sheath as a sheet-shaped flexible concrete formwork sheath is provided with a plurality of cavities for receiving a concrete material;

b) connecting the plurality of webs of the concrete formwork sheath to one

sealing;

c) arranging at least a part of the sealing surface on a lowering ramp which extends obliquely downward in the direction of the water bottom and the

Supports sealing surface when introduced into the water and when depositing on the bottom of the water;

d) placing a concrete material in at least a portion of the cavities in a central region of the concrete formwork shroud located on the lowering ramp; and e) successive lowering of the concrete formwork covering the lowering ramp to the support on a body of water surface.

According to one example, the concrete formwork sheath has lateral areas which laterally adjoin the middle area in the water direction and are rolled up over the lowering ramp before lowering and are deposited together with the central area. After depositing the filled seal on the bottom of the water, the lateral areas are filled with a concrete material.

According to one example, the rolled-up regions formed as lateral roll segments are unrolled before or during filling with concrete material.

According to one example, the rolled-up areas are unrolled and temporarily attached to an upper area of the lateral slope. Subsequently, the unrolled areas are filled with concrete material. According to one example, the work platform becomes a waterside for

Continuous sealing of the water surface in water-bearing state successively moved along the water. 2014/061588

14

For example, a successive sealing of the water surface in

water-conducting state allows. For example, the working platform is pulled counter to a flow direction, wherein the inflowing water causes a buoyancy force against the dead weight of the working platform. To influence the effect of the inflowing water can be provided on the bottom adjustable Wasserleitvorrichtungen. It can be used in sealed waters, e.g. In the case of channels, there is a fairly high or fluctuating flow during normal operation. Depending on the situation, it may then be necessary to reduce or reduce the flow for laying the seal. The flow can be reduced at play meadow for certain laying steps, or for the entire work phases. The flow can be reduced in particular for the time in which the

Sealing is located on the inclined lowering ramp. The flow can also be reduced during the entire working time. For example, it may be necessary to reduce the flow during the day during the week. According to one example, for a temporary interruption of the laying of the

Concrete formwork shell provided the following steps:

i) laying a free end of the composite sealing surface on the

Platform, wherein the free end is square with respect to the area of the central area;

ii) rolling the adjoining lateral areas to two rollers, which are initially aligned in the direction of the water;

iii) placing the first of the two rollers with their end remote from the lowering ramp toward the end of the other roller, which points other end towards the lowering ramp, so that the first roller is oriented transversely to a water direction on the lowering ramp; In addition, a laying of the other role is provided so that it is also aligned on the lowering ramp transversely to the water direction; iv) placing the projecting from the working platform end of the sealing surface on the lowering ramp, wherein at the distal ends fastening devices are formed to the rollers later at least partially back to the

To pull work platform; and

v) temporarily vertically releasing the lowering ramp at its upper end from the work platform and immersing the lowering ramp in the water with its upper end together with the laid-up rolled-up and folded ones

Concrete formwork shell. The flip of the roll is a mirroring along a diagonal.

After lowering in step v), the lowering ramp can be raised again at its upper end and connected to the working platform in order to re-expand the sealing surface in the reverse order, for example to connect further segments or webs.

While lowering the lowering ramp this can be held on the work platform. Instead of lowering the lowering ramp, it may also be provided that the lowering ramp is raised again with the lowered "free" end.

i) The penultimate panel, or the penultimate segment of the composite

Sealing, is completely filled with concrete material.

ii) The embankment panels, or the lateral areas for later sealing of the embankment, are wound up (with unrolling belts for later use).

iii) The last panel (segment) is first sewn to the penultimate panel (segment) in the area of the sole (the area sealing the bottom of the water) and then rolled up as described above, then folded and secured with the straps. This arrangement is also called "night panel" or "night segment". iv) The laying pontoon, ie the working platform, is now pulled in the direction of the upper flow (ie opposite to the direction of flow) until the folded panel reaches the channel bottom and no longer rests on the lowering ramp.

v) As an option, it is planned that the folded panel will be additionally equipped with

Sandbags is weighted so that tearing off the concrete panel is prevented. vi) Then the lowering ramp is raised, e.g. filled with air, so that the lowering ramp rises to the surface and no longer narrows the channel cross-section. For example, the lowering ramp is arranged at the same height as the pontoon.

vii) The cross-section is only minimally impaired and the water flow can be at least approximately in normal operation (so-called resting phase),

viii) After the resting phase, e.g. the next day, the lowering ramp is lowered again, e.g. flooded with water, so that the lowering ramp comes to rest directly in front of the specially folded panel again.

ix) The outer ends of the specially folded panel are now with

Winches on the lowering ramp pulled back up so that the process of concreting can be resumed.

For example, Ensures that the channel flow can be increased again within a very short time. Alternatively, the lowering ramp can also be lowered, as already described for an example above.

For example, the variants described above allow the flow of the water to be restored to normal operation during the night and at the weekend, e.g. to 100%. The flow is thus affected only during the actually necessary time.

In a sloping, remaining in the water lowering ramp is the

Channel cross-section, however, limited.

In one example, the direction of the body of water, ie the direction of flow, is aligned with the direction of the inclined lowering ramp, ie the sloping slope. In one example, it is provided that portions of the sole of the seal (which are actually concreted on the sloping ramp) are first rolled out on the sole and then filled by means of divers via filling supports. This procedure mainly affects areas that are difficult to access, such as inlet and outlet structures, bridges, etc. The filler necks are sewn directly onto the upper shell.

According to one aspect, it is provided that the seal in the form of a

Concrete formwork cover can be made continuously on a working platform for as large a range as possible at the same time gradually on the

Water bottom to be lowered. The lowering is supported by the parallel filling of the concrete formwork envelope with concrete. At the same time the seal is held by the dead weight at the bottom of the water. This can be a large-scale continuous sealing accomplish that can be provided during ongoing operation of the water, especially in water-transporting channels.

By way of example, it is contemplated that the individual elements of the geomembrane, i. the web segments are interconnected so as to obtain an endless seal (without overlaps). The sole regions are e.g. connected by sewing by sewing machines and the embankment areas e.g. by means of

Reißverschiussvorrichtungen. For the lateral areas is a rolling up

Slope panels (= connected segments in the area of the slope) and in

simultaneous rolling of Abrollbändern provided, so that later the

Unroll the slope panels and pull up. The straps are attached at a distance of approx. 1.50 m and later attached, for example with the help of divers, to steel cables attached to a main towing rope. For uniform rolling of the slope panels beispielswese with a central traction device, such as a wheel loader oa, pulled on the main towing. After pulling up the bands are temporarily fixed for the concreting process. This makes it possible to produce a full-surface seal under partial operation. In order to interrupt the sealing work, the ramp is to be "emptied" by means of a special rolling up and folding of the last panel, which is therefore also called a "good night panel", and then the ramp can be raised. For this purpose, the lowering ramp is articulated on the laying pontoon, for example, so that the channel cross-section is no longer restricted. This allows full flow for the duration of the interruption.

For the resumption of the sealing work, a lowering of the working ramp is provided. Then pull up or unfold the last panel.

With the Bewegungscinrichtung (winches) for changing the position of the working platform, also referred to as installation pontoon, the work platform can be pulled towards the upper flow (contrary to the flow direction). The moving means has e.g. a clamping rail over the entire bottom width, in order to discharge the filled concrete shuttering shells, or mats, controlled. While the pontoon is being pulled to the top, "slackening" on the clamp bar in the same ratio will result in the filled mat not sliding down the ramp in an uncontrolled manner.

In one example, side spacers are provided, e.g. Tires that can be variably adjusted so that the work platform e.g. can be centered. This allows different positions of the lowering ramp and the working platform to be adjusted.

It should be noted that the features of the embodiments and aspects of the devices and the system also apply to embodiments of the method. In addition, even those features can be freely combined with each other, in which this is not explicitly mentioned, with synergetic effects that go beyond the addition of the various features. Hereinafter, reference will be made to embodiments of the invention with reference to the accompanying drawings. Show it:

Fig. 1 is a schematic longitudinal section through a sealing system for

Sealing the sole and slope areas of a body of water in a water-bearing state;

Fig. 2 shows another example of a sealing system in a perspective

Sketch of a discharged concrete formwork envelope;

Fig. 3 shows another embodiment in a Schni ttdarstel 1 ung by a

Channel cross section;

4 shows a further embodiment in a schematic longitudinal section with a releasably held lowering ramp;

Fig. 5 shows another example of an intended concrete formwork sheath in which the free end is collapsed for a temporary interruption of the laying, wherein Fig. 5A shows a first state and Fig. 5B shows a subsequent second state;

Fig. 6 is a schematic overview of process steps of an example of a

Method for sealing sole and slope areas of a water body in a water-bearing state;

Fig. 7 is another example of a method;

8 shows another example of a method; and

Fig. 9 shows another embodiment of a sealing system in one

schematic longitudinal section in Fig. 9A, a perspective plan view in Fig. 9B and a cross-section in Fig. 9C.

Fig. 1 shows a schematic longitudinal section through a sealing system 10 of the sole and slope areas of a body of water in a state of water. The sealing system 10 has a working platform 12, a first feed device 14, a connecting device 16, a lowering ramp 18, a second feeding device 20 and a moving device 22. The work platform 12 is above a

Water region 24 of a sealed water body 26 and includes a work surface 28th The first feeder 14 serves to deploy webs of a concrete formwork sheath 30 on the work surface 28. As a concrete formwork sheath 30, a sheet-like flexible concrete shuttering sheath is provided with a plurality of cavities (not shown here in detail) for receiving a concrete material. The connecting device 16 serves to make the plurality of webs of the concrete formwork sheath 30 into a continuous one

Sealing surface 33 to connect. The feeding of the concrete formwork sheath webs is indicated by a first arrow 32. The lowering ramp 18 is (releasably) attached to a first end 34 on the working platform 12 and lowerable with a second end 36, which is opposite to the first end 34, in the direction of the body of water. In the lowered state PI, the lowering ramp 18 extends from the working platform 12 obliquely downward in the direction of

Gewerberbodens, as shown in Fig. 1. The lowering ramp 18 supports the sealing surface 33 when introduced into the water and when placed on the

Body of water at least partially.

The second feeding device 20 serves to introduce a concrete material into at least a part of the cavities in a central region 38 (see FIG. 2) of the concrete formwork cover 30 located on the lowering ramp 18 for a successive lowering of the concrete formwork cover 30 via the lowering ramp 18 to the support one

Water surface area 40. The feeding of the concrete material is schematically indicated by a feed line 42 and a second arrow 44. The concrete formwork sheath 30 is shown in a region on the work platform 12 with a simple line, and in the region of the lowering ramp 18 with a double line, which cavities 46 are indicated, which can be filled with the concrete material, or filled.

The movement device 22 serves to move the working platform 12, and thus also the lowering ramp 18, along the water body in order, for example, to allow a successive sealing of the sole and slope areas in a water-conveying state. FIG. 1 shows, for example, that the sealing surface 33 rests on the base surface 40 in a first region 46. A first movement arrow 48 indicates that the

Arbeitsplatt form by the moving means 22 (with a view of FIG. 1) can be moved to the right to store a subsequent area, which is currently still on the lowering ramp 18, at the bottom of the water.

In one example, shown in a perspective view in FIG. 2, without going into further details of the aforementioned construction or system, the concrete formwork sheath 30 has lateral regions 50 extending laterally at the central region 38 in the waterway direction connect, and are rolled up during the lowering of the lowering ramp 1 8, which is indicated in Fig. 2 by reference numeral 50a.

In addition, it is shown in FIG. 2 that in the laid-out state, the lateral regions 50 can also be deployed in an unrolled manner adapted to lateral bank slopes, which is indicated by reference numeral 50b.

For example, the side areas are rolled up during application on the work surface and during application on the lowering ramp. The lateral areas are used to seal the slope slopes. After unrolling, i. rolling out on the still to be sealed ground and / or

Slope areas, the abutting edges of the adjoining areas, which were rolled up to be lowered, connected to each other, for example by sewing or by zippers or other compounds. According to another example, which is illustrated in FIG. 3 in a cross section through a channel 52, the lateral regions 50 are rollable after laying the middle region 38, which is indicated by a rolled-up structure 54 in the left region and a first arrow 56 shown there is. In the right-hand area, a rolled-out state 58 is shown, in which the cavities are already filled with concrete material, in order to seal lateral banks 60 of the body of water, for example the channel 52. It should be noted that in the example shown, the rolled-up regions are intended to seal the lateral slope bevels.

In another example, it is provided that the lowered geomembrane in

Base area is narrower than the channel footprint, and the rolled-up areas cover the remaining areas of the channel footprint, along with the

Embankment slopes.

For unrolling, for example, tension members, e.g. Ropes with handle loops provided, which were rolled up during rolling up and protrude with a free end of the rolled-up roll. This Abrollhilfen can be attached to a common temporary pull bar, which in turn is provided with tension elements to roll over the pull bar the concrete formwork sheath can. In Fig. 4, another example is shown in which the first end 34 of the lowering ramp on the work platform 12 is vertically movable, e.g. temporarily releasably held and in a second, e.g. dissolved state P2 is at least vertically movable, which is indicated by a double arrow 62. The lowering ramp 18 can be lowered into the water with the first end 34 and can also be raised again with the first end 34 and can be connected to the working platform 12 again. For example, a vertical connection 64 is provided. In another example, it is provided that the lowering ramp 18 can raise itself or lower itself.

As an option, it is provided that the lowering ramp for a temporary interruption of the sealing process can be moved from the first lowered state to the second state. The lowering ramp can be lowered to the second state and be aligned parallel to the flow direction of the water body and in the vicinity of

Be arranged body of water. In Fig. 4, the lowering ramp 18 is shown resting on the water bottom 40. In another example, the lowering ramp 18 is arranged at a small distance from the bottom of the water. If at the same time as the lowering of the feeding of the concrete formwork sheath is interrupted, and the free end, ie not yet laid and filled end of the concrete formwork shell remains on the lowering ramp 18 and is fixed there, a state of the system can be provided at the water cross section in the flow direction is only minimally impaired, for example, for night situations, or for situations with increased flow, for example in a

Power station channel. The concrete formwork sheath is e.g. with detachable and reconnectable

Formed connecting areas to a temporary separation of the not yet laid concrete formwork shell on the lowering ramp of the concrete formwork shell on the

To allow working surface. The releasable connection areas are zippers, for example, with which adjacent areas of the concrete formwork sheath can be connected.

The lowering ramp 18 may be formed, for example with floats 66, as indicated in Fig. 1, so that the lowering ramp 18 can be moved to lower by flooding the floating body successively down. It should be noted that the floats are an option.

As also indicated in FIG. 1, the lowering ramp 18 can be held in its inclination adjustable on the working platform 12, which is indicated by a double arrow 68. The adjustability of the inclination is provided as an option.

The temporary interruption already mentioned in connection with FIG. 4 will also be explained below with reference to FIG. 5. In Fig. 5a is shown in a perspective sketch, a first state in which the concrete formwork sheath 30 is introduced both in the water, and in particular in the first region 46 filled with concrete material rests on the ground, and arranged with an intermediate portion 70 on the lowering ramp 18 is. The side rolled-up areas are not for the sake of clarity shown. Another area 72 is on the (not shown)

Work platform 12. This further region 72 is in the longitudinal direction of the seal, i. the concrete shuttering sheath 30 at a free end 74 formed such that this located on the working platform 12 area 72 in the central region 38 of

Betonschaiungshülle 30 has a square shape. At a minimum, the length should not be greater than the width, the length being indicated by L and the width by B. In other words, the condition shown indicates that the continuous joining of individual sheets of the concrete sheath 30 is discontinued to provide free endings. The lateral areas are shown rolled up, this being shown only for the area on the work platform 12. Of course, there are also lateral areas of Betonschaiungshülle 30 in the Absenkrampe 18 in the rolled up state. With a first movement arrow 76 is indicated that now one of the two lateral rollers with their free end in the direction of the area of the

Absenkrampe 18 folded diagonally, or stowed away. This is followed by a similar laying over the diagonal of the other area, which is indicated by a second movement arrow 78. Thereafter, both side rollers are parallel to each other in the transverse direction of the Betonschalungshül le, as indicated in Fig. 5B, where two rollers are arranged parallel to each other. For better understanding, the first folded roll is designated by reference numeral 80 and the second by reference numeral 82. Of the central region 38, which was originally completely on the work platform 12, only a triangular region 84 is present, in which case several surfaces of Betonschaiungshülle 30 are folded over each other. After the two rollers are arranged parallel to each other, the triangular-shaped end 84 is folded in the direction of the lowering ramp 18, which is indicated by a third movement arrow 86. In a variant, not shown, it is provided that the triangular end 84 in

Direction of the lowering ramp 18 is rolled up, i. in the direction of the movement arrow 86, so that then three instead of the two rollers shown are arranged at the upper end of the lowering ramp. The two or three rolls can be side by side or on top of each other. The orientation is, for example, substantially parallel to one another.

Then, in any case, the area of the concrete sheath cover 30 originally located on the work platform 12 is located on the lowering ramp 18. If ropes are still fastened to the free ends, in particular the roll ends, the Lowering ramp 18 are lowered to provide, for example, a temporary interruption, eg for night situations, available. Instead of ropes and other Haltebzw. Fasteners are used. The ropes above are used to, the

Betonschaiungshülle 30 to roll back to the work platform 12 to continue with the further connecting or laying.

Subsequently, i. after lowering the lowering ramp 18, the lowering ramp 18 can again be pivoted upwards with its first end 34 in order to subsequently control the laying steps, i. the folding of the triangle and the folding of the two rolls, reversing in reverse order, so again spread an area on the work platform 12. Afterwards it can be with the

Connecting device 16 accomplish a continuous connection of the geomembranes. FIG. 6 shows a method 100 for sealing sole and slope areas of a water-bearing water body. The method 100 comprises the following steps:

In a first step 102, multiple tracks of a

Betonschaiungshülle applied to a work surface. The work platform is arranged above a water area of a water body to be sealed and comprises a work surface. As Betonschaiungshülle is a web-shaped flexible

Betonschaiungshülle with a variety of cavities for receiving a

Concrete material provided.

In a second step 104, a connection of the plurality of webs of the concrete casing to a sealing surface takes place.

In a third step 106, at least part of the sealing surface is arranged on a lowering ramp which extends obliquely downwards in the direction of the water bottom, the lowering ramp supporting the sealing surface when introduced into the water and deposited on the bottom of the water.

In a fourth step 108, a concrete material is placed in at least a portion of the cavities in a central region of the ramp on the ramp

Betonschaiungshülle introduced. In a fifth step 110, the concrete formwork cover over the

Lowering ramp gradually lowered to rest on a body of water surface.

The first step 102 is also referred to as step a), the second step 104 as step b), the third step 106 as step c), the fourth step 108 as step d) and the fifth step 1 10 as step e).

In a further example, shown in FIG. 7, the concrete formwork sheath has lateral areas which laterally adjoin the central area in the waterway direction and are rolled up before lowering over the lowering ramp in a further step 12 and together with the middle area are stored. After depositing the filled seal on the bottom of the water, the lateral areas are filled with a concrete material in a still further step. The rolled-up areas are unrolled before or during filling with concrete material.

For example, the rolled up portions are unrolled and then temporarily attached to an upper portion of the side slope to be subsequently filled with concrete material.

According to an example not further shown, the work platform is in

Water direction for an uninterrupted sealing of the water surface in water-bearing state successively moved along the water.

FIG. 8 shows a further example of the method in which further steps are provided:

For a temporary interruption of the laying of the concrete shuttering sheath, a first additional step 16 is provided in which a free end of the composite sealing surface is laid out on the platform, the free end being square with respect to the area of the central area, or at least having a length that corresponds to the maximum of the width. In a second additional step 1 18, the adjoining lateral areas are rolled up into two rolls, which are initially aligned in the direction of the water body or the already laid sealing sheets.

In a third additional step 120, it is provided that the first of the two rollers is placed with its end remote from the lowering ramp towards the end of the other roller, which indicates the other end to the lowering ramp, so that the first roller transversely to a water direction or the waterproofing membrane is aligned with the lowering ramp. In addition, the other role is placed so that it is also aligned on the lowering ramp transversely to the water direction.

In a fourth additional step 122, the end projecting from the working platform is placed on the lowering ramp. At the remote ends, fastening devices, e.g. Ropes, trained or provided to later pull the roles at least partially back on the work platform.

In a fifth additional step 124, a temporary vertical release of the lowering ramp at its upper end from the working platform and immersion of the lowering ramp in the water is provided with its upper end together with the laid rolled-up and folded concrete formwork sheath.

The first additional step 16 is also referred to as step i), the second additional step 118 as step ii), the third additional step 120 as step iii), the fourth additional step 122 as step iv) and the fifth additional step 124 as step v).

In another example, not shown, it is provided that in another

Additional step, the lowering ramp is moved back up towards the working platform to unfold the folded concrete formwork shell again so that it is spread on the work platform to the side rollers to then add more web segments.

In Fig. 9, another embodiment of the sealing system 10 is shown. Fig. 9A shows a longitudinal view, Fig. 9B is a perspective plan view and Fig. 9C a

Transverse view, for example in connection with a sealed channel. Fig. 9A shows the working platform 12 as floating pontoons 202, in which additionally Railing 204 can be seen. The lowering ramp 18 is composed of a plurality of floatable bodies 206. In addition, lateral upstands 208 are indicated, which serve to guide the concrete formwork sheath 30. The sealing system 10 is also formed with winch structures 210 at both ends. In addition, a further winch 212 is shown, which is provided for example as a discharge device in order to lower the filled concrete formwork sheath controlled. Furthermore, a compressor 214 is indicated. With an arrow 216, for example, the flow direction of a sealed channel is indicated. It should be noted that the other devices already mentioned, in particular the first supply device 14, the connection device 16, the second delivery device 20 are not shown further, but are of course provided.

In Fig. 9B it can be seen that in a region around the lowering ramp 18 around

continuous pontoons are provided as a kind of enclosure of this area to provide there, for example, devices for raising and lowering the lowering ramp, which is indicated in Fig. 9A with a line 218. The lowering ramp can thus also be at the first end, i. the actual transition region to the work platform or work surface, also be lowered, which is not shown here in detail.

In Fig. 9C is shown that the lowering ramp 18 is formed with a width corresponding to the width of the channel base. The working platform 12, however, is formed with a larger width. In a further, not shown example, it is provided that the lowering ramp is pulled away from under the folded concrete formwork shell, so that the

folded concrete formwork cover rests on the ground. Then the raised at the free end lowering ramp, so that the cross section of the body of water

temporarily, ie for a resting phase of the sealing work, only minimally impaired. To restart the sealing process, the lowering ramp is lowered again with the free end, and the rolled up and folded segment is pulled back onto the lowering ramp with the aid of unwinding cables. The embodiments described above can be combined in different ways. In particular, aspects of the method may also be used for device embodiments and use of the devices, and vice versa. In addition, it should be noted that "comprising" does not exclude other elements or steps, and "a" or "an" does not exclude a plurality. "Further, it should be noted that features or steps have been described with reference to one of the above embodiments and aspects may also be used in combination with other features or steps of other embodiments and aspects described above, and reference signs in the claims are not intended to be limiting.

Claims

Patent claims

1. A sealing system (10) for sealing sole and

Embankment areas of a body of water in a water-bearing condition, with:

- a work platform (12);

a first feeder (14);

a connecting device (16);

a lowering ramp (18);

a second feeder (20); and

- a movement device (22);

wherein the work platform is arranged above a water area (24) of a water area (26) to be sealed and comprises a work surface (28);

wherein the first feed device is designed to deliver strips of a concrete formwork casing (30) to the work surface, whereby as

Concrete formwork shell is a web-shaped flexible concrete formwork shell with a plurality of cavities for receiving a concrete material;

wherein the connecting device is designed to connect the multiple strips of the concrete formwork casing to form a continuous sealing surface (33);

wherein the lowering ramp is held on the work platform with a first end (34) and can be lowered towards the bottom of the water with a second end (36), which is opposite the first end, the lowering ramp being in a first lowered state (PI). the working platform extends obliquely downwards towards the bottom of the water body, and the lowering ramp is designed to at least partially support the sealing surface when it is introduced into the water and when placed on the bottom of the water body;

wherein the second feed device is designed to feed a concrete material into at least part of the cavities in a central region (38) on the

The concrete formwork sleeve located on the lowering ramp is to be introduced for a gradual

Lowering the concrete formwork casing over the lowering ramp until it rests on a body of water (40); and

wherein the movement device is designed to move the working platform along the body of water.

2. Sealing system according to claim 1, wherein the concrete formwork shell has lateral areas (50) which adjoin the central area laterally in the direction of the water and which are rolled up over the lowering ramp during lowering.

3. Sealing system according to claim 2, wherein the side areas are rolled up during application on the work surface and during application on the lowering ramp.

4. Sealing system according to claim 2 or 3, wherein the side areas can be rolled out under water after the central area has been laid; and

whereby the concrete formwork shell is also in the sides

The bottom areas of the water can be filled with concrete material to seal the side bank slopes (60) of the water.

5. Sealing system according to claim 1, 2, 3 or 4, wherein the first end of the lowering ramp is held vertically movable on the work platform and is movable into a second state (P2); and

wherein the lowering ramp can be lowered into the water with its first end and can be raised again with the first end and reconnected to the work platform.

6. Sealing system according to the preceding claim, wherein the lowering ramp is movable from the first lowered state to the second state for a temporary interruption of the sealing process;

wherein the lowering ramp is lowered in the second state and is aligned parallel to the flow direction of the body of water and is arranged near the bottom of the body of water.

7. Sealing system according to claim 5 or 6, wherein for a temporary interruption of the sealing process a part of the concrete formwork shell that has not yet been laid remains on the lowering ramp and can be temporarily fixed on the lowering ramp; and the lowering ramp with the concrete formwork casing can be lowered into the water towards the bottom of the water.

8. Sealing system according to claim 5, 6 or 7, wherein the

Concrete formwork shell is folded and/or rolled up for an interruption period of the sealing process in the area of the lowering ramp and rests on the lowered lowering ramp

9. Sealing system according to claim 1, 2, 3 or 4, wherein the second end of the lowering ramp is held vertically movable and is movable into a second state (PI);

whereby the lowering ramp has its second end pointing towards the

Water surface is movable at the height of the working platform and in the second state is aligned parallel to the flow direction of the water and close to the

water surface is arranged; and

wherein the concrete formwork casing is folded and/or rolled up in an area that has not yet been filled, and rests on the bottom of the water body for a period of interruption of the sealing process.

10. Sealing system according to one of claims 5 to 9, wherein the

Concrete formwork shell is designed with detachable and reconnectable connection areas in order to temporarily separate the ones that have not yet been laid

Concrete formwork casing on the lowering ramp from the concrete formwork casing on the

to allow work space.

11. Sealing system according to one of the preceding claims, wherein the lowering ramp floating bodies (66) are provided; and

whereby at least part of the lowering ramp is used to lower

Floating body is floodable.

12. Sealing system according to one of the preceding claims, wherein the lowering ramp is held on the work platform in an adjustable inclination (68).

13. Sealing system according to one of the preceding claims, wherein draining devices (212) are provided on the working platform with which the filled

Concrete formwork shell can be lowered in a controlled manner.

14. Sealing system according to one of the preceding claims, wherein the body of water is a canal, a waterway and / or a harbor area.

15. A method (100) for sealing the bottom and embankment areas of a body of water in a water-bearing state, the method comprising the following steps:

a) Dispensing (102) of several sheets of a concrete formwork casing on a work surface, wherein the work platform is arranged above a water area of a water area to be sealed and comprises a work surface, and wherein a web-shaped flexible concrete formwork casing with a plurality of cavities for receiving a concrete material is provided as the concrete formwork casing ;

b) connecting (104) the multiple sheets of the concrete formwork casing to form a sealing surface;

c) arranging (106) at least part of the sealing surface on a lowering ramp, which extends obliquely downwards towards the bottom of the water and the sealing surface when introduced into the water and when placed on the

water bottom supported;

d) introducing (108) a concrete material into at least part of the

Cavities in a central area of the lowering ramp

concrete formwork casing; and

e) successive lowering (1 10) of the concrete formwork shell over the

Lowering ramp until it rests on a body of water.

16. The method according to claim 15, wherein the concrete formwork casing has lateral areas which extend laterally to the central area in the direction of the water connect, and before lowering, be rolled up over the lowering ramp (1 12) and laid down together with the middle section; and

after the filled seal has been placed on the bottom of the water, the side areas are also filled with a concrete material (1 14).

17. The method according to claim 16, wherein the rolled-up areas are unrolled before or during filling with concrete material.

18. The method of claim 17, wherein the rolled portions are unrolled and temporarily attached to an upper portion of the side slope; and then filled with concrete material.

19. The method according to any one of claims 15 to 18, wherein the working platform is successively moved along the body of water in the direction of the body of water for uninterrupted sealing of the body of the body of water in a water-bearing state.

20. The method according to any one of claims 15 to 19, wherein the following steps are provided for a temporary interruption of the laying of the concrete formwork casing: i) laying out (1 16) a free end of the assembled sealing surface on the platform, the free end resting on the surface of the center area is preferably square;

ii) rolling up (1 18) the adjoining side areas into two rolls, which are initially aligned in the direction of the water;

iii) Lay (120) the first of the two rolls with its end away from the lowering ramp towards the end of the other roll, which other end faces

Lowering ramp so that the first roll lies on the lowering ramp aligned transversely to a direction of the water, and laying the other role so that it also lies on the lowering ramp transversely to the direction of the water;

iv) laying (122) the end protruding from the work platform

Sealing surface onto the lowering ramp, with the ends at the far ends

Fastening devices are designed to later at least partially pull the rollers back onto the work platform; and v) temporarily vertically releasing (124) the lowering ramp at its upper end from the worktop and immersing the lowering ramp in the water with its upper end together with the rolled and folded one

Concrete formwork casing.

21. The method according to any one of claims 15 to 19, wherein for a temporary

Interrupting the laying of the concrete formwork shell, the following steps are provided: i) laying out a free end of the composite sealing surface on the platform, with the free end related to the surface of the central area

is preferably square;

ii) rolling up the adjoining side areas into two rolls, which are initially aligned in the direction of the water;

iii) Laying the first of the two reels with its end remote from the lowering ramp towards the end of the other reel, which other end points towards the lowering ramp, so that the first reel lies on the lowering ramp aligned transversely to a water direction, and laying the other reel , so that it also lies on the lowering ramp transversely to the direction of the water;

iv) moving the working platform in relation to the bottom of the water until the rolled-up geomembrane slides off the working platform and rests on the bottom of the water; and

v) temporary lifting of the lowering ramp at its lower, i.e. second, end.