EP2549019A2 - Étanchéification d'un canal - Google Patents

Étanchéification d'un canal Download PDF

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Publication number
EP2549019A2
EP2549019A2 EP12177468A EP12177468A EP2549019A2 EP 2549019 A2 EP2549019 A2 EP 2549019A2 EP 12177468 A EP12177468 A EP 12177468A EP 12177468 A EP12177468 A EP 12177468A EP 2549019 A2 EP2549019 A2 EP 2549019A2
Authority
EP
European Patent Office
Prior art keywords
channel
sealing
sheet
sealing material
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12177468A
Other languages
German (de)
English (en)
Other versions
EP2549019A3 (fr
Inventor
Michael ALTSCHÄFFL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hagn Umwelttechnik GmbH
Original Assignee
Hagn Umwelttechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hagn Umwelttechnik GmbH filed Critical Hagn Umwelttechnik GmbH
Publication of EP2549019A2 publication Critical patent/EP2549019A2/fr
Publication of EP2549019A3 publication Critical patent/EP2549019A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/121—Devices for applying linings on banks or the water bottom
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B5/00—Artificial water canals, e.g. irrigation canals
    • E02B5/02—Making or lining canals

Definitions

  • the present invention relates to the sealing of canals and other watercourses in a water-bearing state. More particularly, the invention relates to a channel sealing system, a channel sealing method, the use of a channel sealing system and a channel section having a channel sealing system.
  • a sealing of channels for example, for the purpose of reducing or preventing the loss of water due to seeping channel water.
  • Channels are therefore provided, for example, both during their construction and later for remedial purposes with a seal.
  • the water is often removed from the channel, ie drained the channel to the water-bearing surfaces, ie the base and also the laterally adjoining bevels or walls, to seal.
  • draining a sewer is associated with problems for a variety of reasons, such as high costs and longer construction site operation. The latter is particularly critical because the channel can not be used during this time.
  • the draining of a channel often has a direct influence on the forces acting in the environment within the soil; For example, there may be cracks and damage to the channel structure, for example, when strong buoyancy forces prevail in the ground. Besides, it can too Settlement damage to buildings in the area come. In particular, in the renovation is therefore often required that the seal must be made in a water-bearing state.
  • a sealing method is known in which a working surface is provided over the entire channel cross-section in order to be able to deploy sheet-shaped sealing material on this working surface and to connect a multiplicity of webs arranged parallel to one another.
  • the thus resulting continuous sealing surface is first attached at one end to the channel bottom, while the other end is located on the work platform. Since the sealing material is provided from one side edge to the other lateral edge and attached to the channel bottom, ie at the bottom or the lateral slopes, a difference water level between the upper reaches and the lower reaches can be generated, pressed by means of which a self-rising sealing membrane to the channel bottom becomes.
  • a power plant operation for example, is feasible only with very powerful pumps, the water flowing from above over the transverse, acting as a separation seal in the lower Pump channel area.
  • the actual power plant or channel operation is therefore usually set and limits the inflow of water in the channel to a minimum, which is required to produce the different water levels can.
  • a channel sealing system for sealing channels and other water courses in a water-bearing state, the channel sealing system comprising a holding device and a pump device.
  • the holding device is designed to hold a sheet-like sealing material in such a way that a trough-shaped receiving basin is provided with a peripheral edge and a base, wherein at least the base surface is formed by the sheet-like sealing material, and wherein the edge above a surrounding first water level of is arranged to be sealed channel.
  • the trough-shaped receiving basin is designed to be movable so that the base surface can be lowered onto an underlying channel base surface.
  • the pumping device is configured to convey water into the receiving basin to form in the receiving basin a second water level that is above the surrounding water level to lower the base area to a channel base area.
  • channel or “watercourse” also includes other natural or artificial waters, such as, for example, transport structures for the forwarding of liquids, such as aqueducts Natural or artificial waters are understood in which water flows in one or more directions.
  • the second water level in the channel region which represents the first water level, can be formed to be uniform on the sheet-shaped sealing material acting lowering force to be formed, which is necessary to deposit the sealing material on the channel bottom.
  • the pumping device conveys water from the channel into the receiving basin.
  • other sources of water can be used to gradually fill the trough-shaped receiving basin with water to form the necessary second water level.
  • the water pumped into the trough-shaped receiving basin can then drain off into the remaining water in the channel.
  • the sheet-like sealing material has a density that is lower than the density of the water in the channel.
  • a water-floating plastic sealing sheet consisting of polyethylene (PE), high-density polyethylene (PEHD) or low-density polyethylene (PELD), or a material containing PE, PEHD and / or or PELD.
  • PEHD is at least minimally lighter than water.
  • the sheet-like sealing material has a density that is greater than the density of the water in the channel.
  • a plastic sealing strip made of PVC is used, or a plastic sealing strip made of a material which comprises PVC.
  • a material for the sheet-like sealing material may be provided that has the same density as the water in the channel, or is neither lighter nor heavier, that is floating in water, so to speak, without external influences, floats and neither floats nor sinks.
  • the trough-shaped receiving basin can be held by the holding device so movable that the base surface is lowered to a channel base.
  • the channel base area is at least a portion of the areas that make up the water bed, i. the channel bottom and adjoining lateral, the channel bounding surfaces, for example slope slopes or side walls.
  • the first water level and the second water level form a differential water level which causes the sheet-like sealing material to flow onto the base of the channel, i. the channel base is lowered.
  • the system is configured to maintain the sheet-like sealing material in a first position and in a second position, wherein the sheet-like sealing material in the first position is in a laid out condition in which it is in the area of the water surface of the channel water , In the second position, the sheet-shaped sealing material rests on the channel base. In the first position, there is a free cross-section in a channel area below the system, which allows water to flow in this channel area.
  • the system reduces the channel cross-section in the first position by a maximum of 50%.
  • a reduction of the channel cross-section by a maximum of 20%, preferably by a maximum of 10% or less, such as e.g. 5%.
  • the sheet-like sealing material may float in the first position on the channel water.
  • the sheet-like sealing material may alternatively be covered in the first position with a small layer of water, for example up to 50 cm, preferably at most 10 cm or less, such as 5 cm or 2 cm.
  • a support structure may be provided on which the holding device is supported.
  • the holding device may in this case be partially supported on the channel bank area and be partially supported by the supporting structure, for example when sealing an area which adjoins the immediate bank area or the bank boundary line of the water-carrying channel.
  • the receiving basin may have a rectangular shape, wherein on at least three sides, a support structure may be provided, while the fourth side is supported directly on the canal bank area.
  • the receiving basin may have a rectangular shape and be supported on four sides with a support structure on the canal bank area.
  • the receiving basin may be a polygonal, e.g. have a triangular or hexagonal shape.
  • the receptacle may also contain another, e.g. have polygonal or amorphous shape, for example, adapted to be sealed to the channel base surfaces.
  • the holding device is supported on a support structure, which is formed at least partially floating.
  • the support structure may for example be designed to be floating, wherein the support structure has floating bodies, which provide the necessary buoyancy in the water of the channel to hold the edge of the receiving basin above the channel water level by means of the holding device.
  • the holding device is supported on a support structure, which has support elements in order to support the holding device on the channel bottom.
  • braces or horizontal support elements can be provided, which ensure that the holding device is fixed in the channel over ground and is not displaced by the flowing water.
  • the holding device comprises a first fastening device for linear attachment of the sheet-like sealing material to a first channel bank area.
  • a second fastening device is provided for linear attachment of the sheet-like sealing material, which is connected to a variable-length tensioning device, for controlled lowering of the base of the receiving basin.
  • the first channel bank area is, for example, a lateral embankment of the canal.
  • variable-length tensioning device may be a winch station which is arranged on a second channel bank area opposite the first canal bank area, for example on a dam crest.
  • a tensile force can be exerted on the sheet-like sealing material via the second fastening device, this tensioning or pulling force then counteracting the weight force which is caused by the water in the receiving basin.
  • the controlled lowering can be used, for example, to prevent a fold beating of the sealing material.
  • the clamping force acts evenly on the surface of the sealing material, so that no trough or bag-shaped depressions can form, which would press the sealing material unevenly down.
  • the second fastening device may be an elongated profile element, to which an edge of the sheet-like sealing material is temporarily fastened.
  • the profile element a uniform introduction of force of a clamping force from a clamping element in the web-shaped sealing material.
  • the walls of the receiving basin are formed by the sheet-shaped sealing material in addition to the base.
  • prefabricated side areas adjoin with regard to the subsequent three-dimensional shaping of the receiving basin.
  • those regions of the sealing material that form the lateral walls are at least partially detachable from the base.
  • regions of the sealing material which form the lateral walls can be detachably connected to the region forming the base of the sealing material, for example via a detachable linear connection, for example in the form of a zipper.
  • a separating element may be incorporated, or be arranged below the geomembranes, which can be activated according to the laying in order to separate the lateral areas.
  • laterally separated areas can then be used with appropriately designed, releasable, linear connections for further lowering operations, so as not to create an unnecessary waste.
  • the holding device has at least one side wall device which forms one side of the receiving basin.
  • the base of the sheet material is releasably secured to the lower end of the at least one side wall means, the at least one side wall means being vertically movably supported on the holding means.
  • the holding device is substantially rectangular and on one side, as already described above in another context, supported on the bank area.
  • the opposite side of the holding device ie the side located in the channel region can then be formed as a side wall means to be lowered with its lower end to the channel base.
  • the two transverse areas of the holding device have, for example, none Sidewall device on to allow at different angles of repose the lowering of geomembranes.
  • the holding device has a circumferential side wall, e.g. several successive side walls or wall segments.
  • the circumferential side wall forms the side walls of the receiving basin.
  • the base of the sheet material may be releasably secured to the lower end of the peripheral side wall.
  • the circumferential side wall can be held vertically movable on the holding device. This circumferential sidewall construction is suitable, for example, for sealing areas within the channel where lateral slopes need not be taken into account.
  • a working platform for connecting geomembranes is provided on one side of the holding device.
  • This allows the transport of individual track segments on the construction site, where then subsequently the tracks can be successively connected to each other on the work platform to form a larger sealing surface.
  • the work platform can be designed so that two tracks can be designed side by side to be welded on site or connected in other ways.
  • the sealing surface, or the sealing material can be pulled out onto the water, with an edge remains on the work platform to connect there another geomembrane. Then, by raising or holding the peripheral edges of the pool is formed, which is filled with water to lower the geomembrane.
  • step c) a water level is formed within the receiving basin, which is higher than the surrounding water level of the channel, so that acts on the base surface of the receiving basin a weight force which counteracts the buoyant force of the sheet-like sealing material and thus the lowering of the base area is achieved.
  • the attachment of the base is done for example with flat iron and anchors.
  • plastic sealing sheets can be used as sealing material.
  • the walls of the receiving basin are formed by the sheet-like sealing material in addition to the base area, and after step d) those areas of the sealing material which form the lateral walls, at least partially separated from the base.
  • a compensation takes place between the water level within the receiving basin and the surrounding water level of the canal.
  • steps a) to d) are repeated in such a way that the adjacent regions are connected to one another when lowering further sheet-shaped sealing material onto the channel base surface.
  • the joining of the adjacent regions can be achieved, for example, by fixing to a common fastening device and / or by overlapping the regions which are connected to one another.
  • step a) the sheet-shaped sealing material is fastened to a first channel bank area and subsequently deployed in the direction of the channel center.
  • step c) the sheet-shaped sealing material is held on the opposite side of the first channel bank area with a clamping force, with which the lowering of the base surface of the receiving basin is controlled on the channel base.
  • the sheet-like sealing material can be applied to the opposite shore area, so that a receiving basin extending over the entire width of the channel is formed.
  • the operation of the channel is in no way impaired.
  • the impairment during the first reduction phase for example, to about the middle of the water depth, only minimal. Only for the last phase of the lowering, when the base area is placed on the channel base, a brief interruption of the channel operation is required.
  • the subsequent lowering of the base surface on the channel base surface means only a small impairment, since the channel cross-section remains unaffected in the area for flowing water, in which no Seal is provided. Subsequently, by laying the holding device and the opposite, not yet sealed in the first process area to be sealed. The sealing between the two partial surfaces then takes place e.g. by overlapping.
  • the holding device can be adapted to the size of the applied geomembrane, or the size of the planned base of the receiving basin, to then allow a targeted lowering of the geomembrane.
  • the channel sealing method according to the invention, as well as the channel sealing system according to the invention are suitable in addition to the use in flowing waters for sealing in stagnant water.
  • the channel sealing according to the invention offers the advantage that only individual Areas during sealing are not available for other uses, but the other areas can still be used unhindered, for example also for shipping.
  • the holding device can be made correspondingly robust in order to avoid an influence by wave impact on the receiving basin.
  • a channel section is also provided in a channel sealing system according to one of the previously described aspects and embodiments.
  • the formation of a receiving basin enables the laying of a geomembrane or a sheet-like sealing material, which would otherwise float on the water due to the buoyancy properties, at the channel bottom.
  • the pumping of water into the receiving basin, and thus the generation of a uniformly distributed weight, leads to a successive lowering or lowering of the receiving basin as a whole, wherein at least the base of the sealing material is made, so that it is possible by further filling the receiving basin the Base, ie the sealing material, to lower down to the channel bottom.
  • the sheet-like sealing material can also adapt to unevenness, since the pressure acting from above is evenly distributed over the surface. Separate devices to bring the geomembrane on the channel base are not required.
  • the sheet-like sealing material can be securely fixed to the channel bottom, so that a subsequent floating is prevented.
  • a circumferential, sealing attachment prevents water from getting under the waterproofing membrane.
  • the geomembrane, or the sheet-like sealing material can also be attached in the center of the area in addition to the channel bottom. Covering with a weighting material, such as a gravel pile is not necessary.
  • Fig. 1 shows a channel sealing system 10 for sealing channels 12 and other watercourses in a water-bearing state.
  • the channel sealing system 10 has a holding device 14 and a pump device 16.
  • the holding device 14 is designed to hold a sheet-like sealing material 18 in such a way that a trough-shaped receiving basin 20 with a peripheral edge 22 and a base 24 is provided. At least the base 24 is formed by the sheet-shaped sealing material.
  • the edge 22 is disposed above a surrounding first water level 26 of the sealed channel.
  • the trough-shaped receiving basin 20 is designed to be movable such that the base 24 can be lowered onto a channel base surface 28 located underneath.
  • the pumping device 16 is configured to convey water into the receiving basin to form in the receiving basin a second water level 30 that is above the surrounding water level to lower the base area 18 to the channel base area 28.
  • the pumping device conveys water from the channel into the receiving basin, resulting in Fig. 1 is indicated schematically by a dashed line 32.
  • the first water level 26 and the second water level 30 form a differential water level 34, which is indicated by a corresponding double arrow symbol.
  • the lowering of the receiving basin, or the base 24 is in Fig. 1 with an arrow 31 located below the basin.
  • the sheet-shaped sealing material 18 floats on the water of the channel.
  • the sheet-like sealing material is a material having a density lower than the density of the water in the channel, so that the sheet-like sealing material 18 floats on the water due to the buoyancy due to the material ,
  • the sheet-like sealing material may also be a material having a greater density and heavier than the water in the channel, so that the sheet-like sealing material 18 floats on the water due to the buoyancy caused by the formation of a trough-shaped receiving basin and the edges formed for it is caused.
  • the channel sealing system 10 is configured to hold the sheet-like sealing material 18 in a first position P 1 and in a second position P 2 , wherein the position P 2 in FIG Fig. 2B is shown.
  • the first position P 1 the sheet-shaped sealing material 18 is in a laid out condition in which it is located in a region of the water surface of the channel, wherein the area is indicated by reference numeral 36.
  • the second position P 2 the sheet-like sealing material 18 rests on the base surface of the channel 28 with the base 24 of the trough-shaped receiving basin 20.
  • a free cross-section 38 is present, which allows a flow of water, indicated with arrow structure 42, in this channel region.
  • the channel operation is impaired only slightly. Also during the subsequent successive lowering of the receiving basin 20, during which intermediate positions P Z (see Fig. 2C ) are taken, the channel cross-section is not completely interrupted. Only at the end of the lowering process is there a greater impairment of the cross section, and during the laying on and the subsequent fastening of the base on the channel base, the cross section is completely interrupted.
  • the water may flow past, so that according to the invention it is possible to seal a channel while it is conducting water, without the complete interruption of the channel operation being required.
  • the holding device 14 is supported on a support structure 44, which is designed to be at least partially floating.
  • the support structure 44 has floating bodies 46 which provide the necessary buoyancy in the water of the channel in order to arrange the edge 22 of the receiving basin above the channel water level 26 by means of the holding device 14, or to allow the second water level 30 within the receiving basin 20 can be achieved.
  • the pumping device 16 serves to convey water into the receiving basin 20.
  • another source of water can be used, such as a hydrant, which is located nearby.
  • the pumping device can also be arranged on a separate pontoon or ship, or pumps of ships can also be used to convey water into the receiving basin 20.
  • the holding device 14 is supported on a support structure 44, which has support elements 50 in order to support the holding device on the channel base 28.
  • the channel sealing system 10 includes a combination of support members 50 and floats 46.
  • the support element 50 may be provided to support a pumping device 16 arranged there on the channel bottom, if this pump has a greater weight.
  • Fig. 5 the channel 12 is shown in cross section, wherein the lateral boundaries in the form of slopes 52 are shown symbolically or schematically, and are by no means to be considered as limiting statements regarding pitch angle and proportions of the channel.
  • the holding device 14 comprises a first fastening device 54 for the linear attachment of the sheet-like sealing material 18 to a first channel bank region 56.
  • a second fastening device 58 for linear attachment of the sheet-like sealing material, the second fastening device 58 having a variable-length tensioning device 60 is connected to the controlled lowering of the base of the receiving basin 20th
  • Fig. 6A the state is shown in which the sealing material is applied and floats on the water of the channel 12.
  • the variable-length clamping device 60 is changed in length such that the second fastening device 58 gradually into Fig. 6A , respectively.
  • Fig. 6B wanders to the left.
  • the first channel bank area 56 may be, for example, a lateral bank 52 of the channel.
  • the variable-length tensioning device 60 can be, for example, a winch station 62, which is arranged on a second channel bank region 64 opposite the first channel bank region.
  • FIGS. 6A to 6B the support structure is exemplified with a pontoon 46, but instead a support structure with support members 50 may be used instead.
  • FIGS. 6A to 6B features shown with the features of other figures, ie embodiments can be combined.
  • a state is shown in which the receiving basin 20 is only slightly filled with water through a pumping device, not shown.
  • the receiving basin 20 is further filled or filled with water, so that the base 24 is lowered further in the direction of the channel base 28, or the distance is further reduced.
  • a fastening 68 of the base 24 is shown on the channel base 28, which may be formed for example by means of flat iron and anchors 70.
  • Fig. 7 a further aspect is shown, which, however, does not necessarily have to be combined with the features otherwise shown, and rather can also be combined with the other exemplary embodiments.
  • the holding device 14 has at least one side wall means 72 which forms one side of the receiving basin 20, wherein the base 24 is releasably secured from the sheet-like sealing material at a lower end 74 of the at least one side wall means 72.
  • the at least one side wall device 72 is held vertically movable on the holding device, which is indicated by a double arrow symbol 76, for example in FIG FIGS. 8A to 8B and FIG. 9 ,
  • Figs. 8A and 8B show a variant in which a circumferential side wall 78 has a plurality of successive side walls 79, which together form the receiving basin 20.
  • the base of the sheet material is at the lower end of the peripheral side wall 78 releasably secured and the peripheral side wall is held vertically movable on the holding device, indicated by the double arrow symbol 76th
  • Fig. 8A shows an initial state in which only a small amount of water has been filled in the receiving basin 20, so that the base 24 is only slightly below the water level 26 of the channel.
  • Fig. 8B shows a further state during lowering, in which even more water is pumped into the receiving basin 20 (the pump is, as already mentioned, not shown here), it due to the increasing weight of the water masses in the receiving tank 20 to a further lowering the base 24 comes.
  • the base 24 is lowered onto the channel base 28, the base 24 is secured to the channel base, and then the base 24 is separated from the lower edges of the side wall 78 so that the side walls 78 are moved up again can.
  • the sidewall structure 78 could successively drive down without filling the receiving basin, and thus theoretically also push the base 24 into the water, however, due to the buoyancy from below, the sealing material would become heavily stressed. According to the invention, therefore, the receiving basin 20 is gradually filled with water, so that a uniform pressure on the sealing sheet 24 is exerted from above.
  • the displacement device in the vertical direction is necessary, so to speak, only for the absorption of the weight forces of the side wall structures, or provided.
  • the side wall construction can also be designed with floating bodies, so that the dead weight of the side wall construction is borne by the floating bodies in order to minimize the displacement devices with regard to the forces to be applied.
  • Fig. 9 an embodiment is shown in which the sheet-like sealing material is fixed to a lateral bank area by means of the holding device 14 supported there.
  • a side wall device 72 is provided, which is held vertically movable by the holding device 14.
  • the remaining areas of the holding device 14 are formed, for example, with a floating support structure or support elements, but have no further side wall means.
  • side wall means 72 means increased design effort, but means with a uniform channel cross-sectional profile over a long length, acceleration, or simplification of the sealing process, and also a reduction of the crop, since here the side wall devices are always used again can.
  • a working platform 80 for connecting sealing webs is provided on one side of the holding device 14.
  • a plurality of sealing webs 82 may be stored on the working platform 80 and gradually joined together at their longitudinal sides to the sheet-like sealing material 18, which can then be applied over the water surface, for example by means of tension elements or movable floating elements on the front edge.
  • tension elements or movable floating elements on the front edge.
  • the working platform 80 can of course also be supported instead of the floats shown with support elements on the channel bottom.
  • Fig. 11 an embodiment is shown in which those areas of the sealing material which form the lateral walls, which in Fig. 11 are indicated by reference numeral 84, with which the base surface 24 of the sealing material forming area are detachably connected, for example via a releasable linear connection 86th
  • a water level is formed within the receiving basin, which is higher than the surrounding water level of the channel, so that acts on the base of the receiving basin, a weight force, the the buoyant force of the sheet-like sealing material counteracts and thus the lowering of the base area is achieved.
  • the first step 210 is also referred to as step a), the second step as 212 as step b), the third step 216 as step c) and the fourth step 220 as step d).
  • not only the base area but also the bands of the receiving basin are formed by the sheet-like sealing material, and after step d) those areas of the sealing material which form the lateral walls are at least partially separated from the base area in a separating step 222.
  • the web portions of the side walls can also be lowered by another operation on the ground, e.g. with a receiving basin, which lowers a base area, which overlaps the already laid sealing surface or is fixed to a common holding device on the channel bottom.
  • a compensation 224 takes place between the water level within the receiving basin and the surrounding water level of the channel in a compensating step 226.
  • steps a) to d) are repeated in this way - which is described in US Pat Fig. 15 is indicated by a repetitive arrow 228 - that when lowering further sheet-like sealing material on the channel base surface, indicated by reference numeral 218 ', the adjacent areas are connected in a connecting operation 230 during the fastening operation indicated by reference numeral 220'.
  • step a) the sheet-like sealing material is fastened in a fastening step 234 to a first channel bank region and subsequently deployed in a discharge process 236 in the direction of the channel center.
  • step c) the sheet-like sealing material is held on the opposite side of the first channel bank area with a clamping force in a holding operation 238, wherein the clamping force, the lowering of the base of the receiving basin is controlled on the channel base in a control step 240.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Revetment (AREA)
  • Barrages (AREA)
  • Sealing Devices (AREA)
EP12177468A 2011-07-21 2012-07-23 Étanchéification d'un canal Withdrawn EP2549019A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011108222A DE102011108222B3 (de) 2011-07-21 2011-07-21 Kanalabdichtung

Publications (2)

Publication Number Publication Date
EP2549019A2 true EP2549019A2 (fr) 2013-01-23
EP2549019A3 EP2549019A3 (fr) 2013-03-06

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DE (1) DE102011108222B3 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013000861B4 (de) * 2013-01-18 2014-08-07 Hagn Umwelttechnik Gmbh Kanalabdichtungssystem und Verfahren zum Abdichten eines Kanals in wasserführendem Zustand
DE102013000860A1 (de) * 2013-01-18 2014-07-24 Hagn Umwelttechnik Gmbh Kanalabdichtung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008047008A1 (de) 2008-09-12 2009-07-30 Hagn Umwelt Gmbh Abdichtung von Kanälen

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Publication number Priority date Publication date Assignee Title
NL172261B (nl) * 1979-08-24 1983-03-01 Bos Kalis Westminster Werkwijze voor het aanbrengen van een vlies over de bodem onder water en inrichting voor het toepassen van deze werkwijze.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008047008A1 (de) 2008-09-12 2009-07-30 Hagn Umwelt Gmbh Abdichtung von Kanälen

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DE102011108222B3 (de) 2012-07-26

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