METHOD, WATERPROOF COATING AND WATERPROOF PANELS FOR INSTALLATION IN BASINS AND CANALS

Abstract

The invention relates to a method, a waterproof coating, and waterproof panels for installations in basins and canals (10) that are both dry and contain stagnant and flowing water. The coating consists of a plurality of prefabricated panels (14; 14a) comprising at least one flexible waterproof membrane (16), made of a geosynthetic material, provided with lateral anchoring strips (23) for anchoring to the ground and with lateral sealing flaps (26); the panels (14; 14a), which are rolled into rolls, are successively unrolled and extended by temporary fixing along at least one anchoring strip (23), simultaneously joining the flaps (26) of adjacent panels (14; 14a) by means of an intermediate sliding fastener (28). Subsequently, the individual panels (14; 14a) are firmly anchored by friction to the bottom (11) and / or the banks (12) of the basin or canal (10), by means of a permanent ballast (30).According to a first solution, the panels (14) comprise overlapping waterproof membranes (16, 17) made of geosynthetic material and are designed with filling chambers or cells (18) into which a cementitious ballast mixture is injected; in a second solution, each panel (14), consisting of a single flexible membrane (16) made of geosynthetic material, is permanently ballasted by precast concrete blocks (49); in a third solution, the panels (14a) comprise a first waterproof membrane (16) and a second waterproof membrane (50) folded into a tubular shape and welded to the first waterproof membrane (16). The individual panels (14; 14a) can be removed and replaced by an underwater operation that restores the joint between the panels (14; 14a) of the entire waterproof lining.<!--endfragment-->

Description

consists of a single flexible membrane (16) made of geosynthetic material, permanently weighted down by precast concrete blocks (49); in a third solution, the panels (14A) comprise a first waterproof membrane (16) and a second waterproof membrane (50) folded into a tubular shape and welded to the first waterproof membrane (16). The individual panels (14; 14A) can be removed and replaced by an underwater operation that restores the joint between the panels (14; 14A) of the entire waterproof lining.

Claims

DEMANDS 1. A method for installing and laying a waterproof lining on the bottom (11) and / or the banks (12) of a canal or water basin (10), wherein the waterproof lining consists of a plurality of panels anchored to the bottom or the banks of the canal or water basin (10), each panel comprising at least one waterproof membrane (16; 17; 50), characterized in that the method comprises the following steps: - manufacture of a plurality of watertight panels (14; 14A) in which each panel (14; 14A) comprises at least one tubular ballast chamber (18) and flexible sealing flaps (26) extending along opposite lateral edges of the panel (14; 14A); - sequential positioning of a number of waterproof panels (14; 14A) on the bottom (11) and / or on the banks (12) of the canal or water basin (10); - pre-fixing of each waterproof panel (14; 14A) to the bottom (11) and / or to the banks (12) of the canal or water basin (10) during installation; - removable, watertight connection of opposing flaps (26) of adjoining waterproof panels (14; 14A) by means of an intermediate waterproof connecting device (28; 44, 45) during installation of the panels (14; 14A); and ballasting and friction anchoring of each individual waterproof panel (14; 14A) to the bottom (11) and / or the banks (12) of the canal or water basin (10) by injection of a concrete mixture (30) into the ballast chamber (18) after the placement of each panel (14; 14A).

2. Method of installing and laying a waterproof coating according to claim 1, characterized by carrying out the step of fixing each panel (14; 14A), and the waterproof connection of the intermediate connecting device (28; 44, 45) during the underwater laying of each waterproof panel (14; 14A) in the channel or water basin (10).

3. Method of installing and laying a waterproof coating according to claim 1 or 2, characterized by the connection of the opposite flexible waterproof side flaps (26) of two adjoining waterproof panels (14; 14A) by means of a waterproof zipper (28).

4. Method of installing and laying a waterproof coating according to claim 3, characterized by the closing of the zipper (28) connecting the adjacent panels (14; 14A) simultaneously with the fixing to the bottom (11) and / or the edges (12) of lateral anchor strips (23), or flexible sealing flaps (26), during the underwater laying of the waterproof panels (14).

5. Method of installing and laying a waterproof coating according to claim 1, characterized by the configuration of the intermediate waterproof bonding device (28; 44, 45) between the panels (14), with overlapping sealing flaps (26) opposite adjoining panels (14), and the positioning of a dilatable sealing element (45) between the overlapping flaps (26) pressing the sealing element (45) by means of a ballast element (46).

6. Method of installing and laying a waterproof coating according to one or more of claims 1 to 5, characterized by the configuration of each waterproof panel (14; 14A) with a plurality of tubular chambers (18) or separate cells, or a plurality of cells which communicate with each other, into which a ballast (30) consisting of a concrete mixture in a fluid state is injected.

7. Method of installing and laying a waterproof coating according to claim 6, characterized by the injection of the ballast material (30) from at least one end or at least one internal area of ​​the panel (14; 14A).

8. Method of installing and laying a waterproof coating according to claim 7, characterized by the injection of the ballast material (30) by means of one or more tubular elements (31) which extend into the chamber (18) or the cells towards different internal areas of the panel (14).

9. Method of installing and laying a waterproof coating according to any one of the preceding claims, characterized by the configuration of the panel (14) with a lower waterproof membrane (16) and an upper waterproof membrane (17) connected in a watertight manner along peripheral edges, in which at least one of the waterproof membranes (16,17) is made of a geosynthetic material.

10. A method for installing and laying a waterproof coating according to any one of the preceding claims, characterized by the configuration of the panel (14A) with a first waterproof membrane (16) made of a geosynthetic material and with a second waterproof membrane (50), folded into a tubular shape, having its lateral edges assembled in a watertight manner along a sealing line, at a first end (51), said second waterproof membrane (50) being superimposed and welded to the first waterproof membrane (16), the tubular chamber (18) being defined inside the second waterproof membrane (50).

11. Method of installing and laying a waterproof coating according to any one of claims 6, 9 or 10, characterized by injecting the ballast material (30) into the chamber or tubular cells (18) of the panel (14; 14A), by means of flexible supply conduits (33) connected to the openings (34) of the upper waterproof membrane (17) or of the second waterproof membrane (50).

12. Method for installing and laying a waterproof coating according to claim 1, characterized by providing a waterproof bonding device (44; 45) between the flexible flaps (26) of adjoining waterproof panels (14), in which each waterproof panel (14) is made of a single waterproof membrane of geosynthetic material.

13. Method of installing and laying a waterproof coating according to claim 1 or 10, characterized by the provision of a waterproof linking device (28) between the flexible flaps (26) of adjoining waterproof panels (14A), in which each waterproof panel (14A) consists of a first waterproof membrane (16) made of geosynthetic material and a second waterproof membrane (50) folded into a tubular shape.

14. Method of installing and laying a waterproof coating according to claims 1 or 6, wherein the waterproof panel (14) comprises a lower waterproof membrane (16) and an upper waterproof membrane (17) providing one or more tubular chambers or cells (18) for a permanent ballast material (30), comprising the step of supplying a plurality of flexible internal coupling elements (22, 34, 36, 39, 40) configured to maintain the lower waterproof membrane (16) and the upper waterproof membrane (17) at a predetermined distance during the injection of the ballast material (30).

15. A method for installing and laying a waterproof coating according to claims 1 or 10, characterized by the step of supplying inside the tubular chamber (18) a plurality of flexible internal coupling elements (22, 34, 36, 39, 40) configured to hold the opposing internal walls (53, 54) of the chamber tubular (18) at a predetermined distance during !, injection of ballast material (30).

16. Method of installing and laying a waterproof coating according to claim 9, characterized by the configuration of the lower waterproof membrane (16) and / or the upper waterproof membrane (17) with a synthetic material having a permeability coefficient (K) less than or equal to 10-10 cm / s.

17. A method for installing and laying a waterproof coating according to claim 10, characterized by the configuration of the first waterproof membrane (16) and / or the second waterproof membrane (17) with a synthetic material having a permeability coefficient (K) less than or equal to 10⁻¹⁰ cm / s -18. Waterproof lining or lining for canals or water basins (10) adapted to be installed and laid by the method of claim 1, characterized in that the lining comprises: - a plurality of independent waterproof panels (14; 14A) arranged side by side extending over a bottom (11) and / or the banks (12) of the canal or water basin (10), in which each panel (14; 14A) comprises at least one waterproof membrane (16; 17; 50) and is configured with at least one ballast chamber (18) and in which each panel (14; 14A) is provided with flexible flaps (26) extending longitudinally along the opposite lateral edges of the panel; - an intermediate waterproof connecting device (28; 44, 45) between the opposing flexible flaps (26) of the facing waterproof panels (14; 14a), said waterproof connecting device (28; 44, 45) removably and watertightly connecting said opposing flaps (26); each panel (14; 14A) comprising at least one opening for injecting a cementitious mixture (30) to ballast and anchor by friction each panel (14; 14A) to the bottom or banks of a canal or water basin.

19. Waterproof coating according to claim 18, characterized in that each waterproof panel (14) is provided with a flexible anchoring strip (23), in which at least one flexible anchoring strip (23) of each panel (14) is fixed to the bottom (11) or to the banks (12) of the channel or water basin (10).

20. Waterproof coating according to claim 18, characterized in that at least one flexible flap (26) of each panel (14; 14A) is fixed to the bottom (11) or to the banks (12) of the canal or water basin (10).

21. Waterproof coating according to any one of claims 18 to 20, characterized in that the intermediate waterproof linking device between the flexible waterproof flaps (26) comprises a waterproof zipper (18).

22. Waterproof coating according to claims 19 or 21, characterized in that the flexible waterproof flaps (26) of adjoining panels (14) are loosely connected to each other.

23. Waterproof coating according to claim 18, characterized in that the intermediate linking device between the flexible waterproof flaps (26) comprises a dilatable waterproof element (45) positioned between the superimposed flexible waterproof flaps, and a permanent ballast (46) positioned to press said dilatable waterproof element (45) between the superimposed waterproof flaps (26).

24. Waterproof coating according to claim 23, characterized in that the expandable waterproof device (45) comprises a material which expands upon contact with water.

25. Waterproof coating according to claim 24, characterized in that the expandable waterproof device is positioned between two lateral spongy elements (44.1, 44.2).

26. Waterproof coating according to claim 25, characterized in that it comprises a first water leak detection chamber (46.1), respectively a second chamber (46.2) for injecting a sealing material, said first and second chambers being disposed between the dilatable waterproof element (45) and the lateral spongy elements (44.1, 44.2).

27. Waterproof panel (14, 14A) adapted for the installation and laying of a waterproof lining for canals and water basins (10) according to one or more of claims 18 to 26, characterized in that the panel (14; 14A) is configured as a panel provided with a tubular chamber (18) comprising: - at least one waterproof membrane (16) made of geosynthetic material, having lateral edges extending in a longitudinal direction of the panel(14); - a flexible waterproof flap (26) along the opposite lateral sides of the panel (14); in which each waterproof flap (26) of a panel (14; 14A) is configured to be removably connected to a waterproof flap (26) of another panel (14: 14a) by means of an intermediate waterproof connecting device (28: 44, 45).

28. Waterproof panel (14) according to claim 27, characterized in that it comprises a lower waterproof membrane (16) and an upper waterproof membrane (17) welded watertight along the peripheral edges, and a plurality of internal flexible coupling elements (22, 24, 36, 39, 40) between the lower membrane (16) and the upper membrane (17).

29. Waterproof panel (14A) according to claim 27, characterized in that it comprises a first waterproof membrane (16) and a second waterproof membrane (50), folded in a tubular shape, having overlapping lateral edges joined watertight along a sealing line (51), said second waterproof membrane (50) being superimposed and welded to the first waterproof membrane (16), at least a tubular chamber (18), having opposite internal surfaces, being defined inside the second waterproof membrane (50), a plurality of flexible internal coupling elements (22, 24, 36, 39, 40) being provided between the opposite internal surfaces (53, 54) of the tubular chamber (18).

30. Waterproof panel (14; 14A) according to claim 28 or 29, characterized in that at least one of the waterproof membranes (16, 17) is made of a geosynthetic material.

31. Waterproof panel (14) according to claim 28, characterized in that the internal coupling elements (22, 24, 36, 39, 40) comprise a plurality of eyelets (37) on an internal side of each lower and upper waterproof membrane (16, 17) and a plurality of rope-forming elements (36) inserted alternately into the eyelets (37) of the upper waterproof membrane (17) and the lower waterproof membrane (16) of the panel (14).

32. Waterproof panel (14A) according to claim 29, characterized in that the coupling elements (22, 24, 36, 39, 40) comprise a plurality of eyelets (37) on each internal wall (53; 54) of the tubular frame (18) and a plurality of rope-forming elements (36) inserted alternately into the eyelets (37) of the internal walls (53, 54) of the tubular frame (18).

33. Waterproof panel (14; 14A) according to any one of claims 27 to 32, characterized in that each waterproof flap (26) is provided with a toothed band (28) forming part of the waterproof zipper.