Waterproof curtain wall and mounting method thereof

Abstract

The invention provides a waterproof curtain wall which is divided into a plurality of rows in the height direction in consideration of the situation that single curtain units need to be installed within the maximum transportation volume limit after being packaged and the waterproof curtain wall array type overwater installation mode. The shapes of the curtain units at the two ends of each row fit the shape of a water area, so that low-temperature water is prevented from leaking from the periphery of the waterproof curtain wall; three curtain units in different shapes are combined in different forms according to the width of a water area to form the whole waterproof curtain wall, each row can be composed of one curtain unit, or a plurality of curtain units are connected left and right and spliced into a row; the number of abutted seams of the waterproof curtain wall is reduced to the maximum extent, and therefore low-temperature water leakage at the seams is reduced. The transverse cable unit wrapped by the curtain unit adopts a whole transverse cable form with fewest breakpoints, the situation that the stability of a net structure is reduced and the bearing capacity is weakened due to excessive breakpoints of a curtain wall framework is avoided, and the constructed cable net structure forms a good stress framework and can bear high loads.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy and hydropower engineering, and particularly relates to a water-blocking curtain wall and an installation method thereof. Background Art

[0002] The Chinese patent application number "CN202410859042.4" "A flexible waterproof curtain wall installation system and a flexible waterproof curtain wall installation method" and the Chinese patent application number "CN202311078720.5" "A waterproof curtain wall underwater installation system and installation method" propose a solution called "waterproof curtain wall", which adopts Figure 1 In the form shown, a plurality of water retaining curtains 3 are covered and connected to a curtain wall frame formed by connecting longitudinal cables 1 and transverse cables 2. This solution can be used to increase the temperature of discharged water from large hydropower stations or reservoirs, mitigate the adverse effects of low-temperature water on downstream aquatic organisms and crops, and can also be used in many ecological engineering fields such as mitigating saltwater intrusion at estuaries. In actual application, the interception span of the waterproof curtain wall is hundreds of meters, the height can reach hundreds of meters, and the entire size can reach tens of thousands of square meters. If it is produced, transported and installed in the form of a whole curtain, there will be many difficulties, such as: the existing production equipment cannot produce cloth with a length and width of hundreds of meters; the size of the whole curtain after folding exceeds the limit and cannot be transported from the production site to the installation site by land transportation; and the waterproof curtain wall is installed in the reservoir water storage state or in the natural sea area. During on-site construction, the water surface construction platform cannot carry large lifting equipment to install the entire waterproof curtain wall. Therefore, the installation of the waterproof curtain wall is carried out on the water site in the following steps: splicing on the water, sinking into the water and fixing underwater, and the installed waterproof curtain wall is supported and pulled by the cable towers on both sides of the water area.

[0003] Since the waterproof curtain wall composed of multiple curtains will inevitably leave gaps at the connection between adjacent curtains; and the cross-section of the reservoir or estuary is close to V-shaped, and the bottom shape is irregular, the waterproof curtain wall needs to adjust the shape of the lower edge according to the underwater terrain to fit the existing terrain and avoid gaps between the lower end of the waterproof curtain wall and the terrain, causing low-temperature water leakage and affecting the engineering effect of the waterproof curtain wall. In addition, due to the impact of water flow and the large changes in the water level from top to bottom of the curtain wall during use, the waterproof curtain wall system is subject to high loads. Therefore, how to design the shape and connection method of the curtain and curtain wall frame so that the assembled waterproof curtain wall system of tens of thousands of square meters can have good waterproof performance and reliable force-bearing structure underwater is an urgent problem to be solved. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a waterproof curtain wall having the advantages of a strong waterproof structure and a stable and reliable structure.

[0005] A water isolation curtain wall disclosed by the present invention is traction-supported by cable towers on both sides of a water area, and includes longitudinal cables uniformly arranged along the width direction of the water isolation curtain wall, transverse cables uniformly arranged along the height direction of the water isolation curtain wall, and a curtain cloth. The longitudinal cables and the transverse cables are connected to form a curtain wall skeleton, and the curtain cloth covers and is connected to the curtain wall skeleton. It is characterized in that the water isolation curtain wall is divided into two areas connected up and down along the height direction: a square area attached to the cable tower and a V-shaped area attached to the underwater terrain; the square area and the V-shaped area are composed of several rows connected up and down, and each row includes at least one of the following curtain cloth units: a rectangular curtain cloth unit, a general trapezoidal curtain cloth unit, and a right trapezoidal curtain cloth unit;

[0006] According to the width of the water area, one of the following forms is selected for one row in the square area:

[0007] Form I: One row is composed of one rectangular curtain cloth unit;

[0008] Form II: One row is composed of multiple rectangular curtain cloth units connected by their wide sides;

[0009] According to the width of the water area, one of the following forms is selected for one row in the V-shaped area:

[0010] Form One: One row is composed of one general trapezoidal curtain cloth unit;

[0011] Form Two: One row is composed of two right trapezoidal curtain cloth units connected by their right-angled waists;

[0012] Form Three: One row is composed of several rectangular curtain cloth units sandwiched between two right trapezoidal curtain cloth units, and connected by their right-angled waists and wide sides.

[0013] Considering that the single curtain cloth unit needs to be within the maximum transportation volume limit after being packaged and the array installation method of the water isolation curtain wall on the water, the water isolation curtain wall is divided into several rows along the height direction. The shapes of the curtain cloth units at both ends of each row are designed to fit the shape of the water area to prevent low-temperature water from leaking from the periphery of the water isolation curtain wall; three curtain cloth units with different shapes are combined in different forms according to the width of the water area to form the whole water isolation curtain wall. Each row can be composed of one curtain cloth unit, or multiple curtain cloth units are connected and spliced horizontally to form a row; the number of joints of the water isolation curtain wall is minimized, thereby reducing the leakage of low-temperature water at the joints.

[0014] Further, the upper and lower adjacent curtain cloth units are overlapped with a first waterproof cloth in a detachable manner at the horizontal joint.

[0015] Further, the left and right adjacent curtain cloth units are overlapped with a second waterproof cloth in a detachable manner at the vertical joint;.

[0016] The horizontal joints and vertical joints of adjacent curtain cloth units are covered with waterproof cloth to reduce the leakage of low-temperature water at the joints.

[0017] Further, the distance between adjacent longitudinal cables is L2, and a plurality of first eye loops are provided on the longitudinal cables, with the distance between adjacent first eye loops being L1;

[0018] The transverse cables include rectangular transverse cable units, general trapezoidal transverse cable units, and right trapezoidal transverse cable units;

[0019] The rectangular transverse cable unit is formed by closing a single transverse cable end to end; a square curtain is covered and connected to the rectangular transverse cable unit to form the square curtain unit;

[0020] The general trapezoidal transverse cable unit is formed by connecting two straight transverse cables as the bottom edges and two edge connecting cables as the waist edges; a general trapezoidal curtain is covered and connected to the general trapezoidal transverse cable unit to form the general trapezoidal curtain unit;

[0021] The right trapezoidal transverse cable unit is formed by connecting a single transverse cable as the right-angle side and an edge connecting cable as the hypotenuse; a right trapezoidal curtain is covered and connected to the right trapezoidal transverse cable unit to form the right trapezoidal curtain unit;

[0022] A plurality of second eye loops are provided on the transverse cables, with the distance between horizontally adjacent second eye loops being L2 and the distance between vertically adjacent second eye loops being L1;

[0023] The longitudinal cables and the transverse cables intersect and are connected to the curtain wall skeleton connection nodes through the first eye loops and the second eye loops.

[0024] The transverse cable units wrapped by the curtain unit adopt the form of a single whole transverse cable with the fewest breakpoints, avoiding the reduction of the stability of the mesh structure and the weakening of the bearing capacity of the curtain wall skeleton due to excessive breakpoints; at the longitudinal joint, the whole transverse cable bends and is connected to the longitudinal cable, and a three-cable parallel connection is formed at the longitudinal joint, increasing the connection strength at the longitudinal joint.

[0025] Further, the first eye loop is made by inserting and braiding ropes.

[0026] Further, the second eye loop is made by inserting and braiding ropes.

[0027] The first eye loop and the second eye loop serving as the curtain wall skeleton connection nodes are made by inserting and braiding the ropes themselves, and the overall strength is greater than that of the externally connected rings.

[0028] Further, the first eye loop and the second eye loop are connected by a flexible shackle. The flexible shackle connects and fixes all the eye loops at the node to form an integral whole, and the flexible material can reduce the wear on the connection.

[0029] Furthermore, an end eye loop is provided at the end of the longitudinal cable, and a tubular collar is externally fitted to the end eye loop. The tubular collar prevents abrasion between the longitudinal cable and other parts, and at the same time increases the turning radius to ensure that the strength of the longitudinal cable is not lost.

[0030] Furthermore, a water-proof curtain wall disclosed by the present invention further includes a plurality of skirt edges, a plurality of first connecting cables, and a plurality of counterweight components;

[0031] The upper ends of the skirt edges are respectively connected to the first connecting cables, and the lower ends of the skirt edges are respectively connected to the counterweight components; the first connecting cables are sequentially connected end to end; the density of the counterweight components is greater than the density of water.

[0032] The skirt edge has a first state and a second state:

[0033] In the first state, the skirt edge takes the counterweight component as a core and is wound from the lower end to the upper end to form a skirt edge winding;

[0034] In the second state, the skirt edge winding is unfolded, and the skirt edge is perpendicular to the direction of the water flow.

[0035] A plurality of skirt edges are sequentially connected to form a water-blocking surface along an irregular V-shaped curve at the lower edge of the water-proof curtain wall to prevent leakage of low-temperature water in the gap between the water-proof curtain wall and the bottom of the water.

[0036] Another aspect of the present invention also provides an assembly method for a water-proof curtain wall, and the method includes the following steps:

[0037] According to the positions of each curtain unit in the water-proof curtain wall, the curtain units are numbered in sequence;

[0038] Starting from the upper end of the water-proof curtain wall, taking the same row as an installation unit, with the water-facing surface of the curtain facing downwards, complete the connection of the longitudinal cable and the transverse cable in the same curtain unit, the splicing of the transverse cables at the left and right ends of the left and right adjacent curtain units and the longitudinal cables at the longitudinal joint, and the splicing of the transverse cables of the upper and lower adjacent row curtain units at the transverse joint;

[0039] Repeat the above steps to complete the connection of the adjacent lower row curtain units until the connection of the curtain units in the lowest row of the water-proof curtain wall.

[0040] The present invention has the following beneficial effects:

[0041] A water-proof curtain wall system provided by the present invention can adapt to on-site water surface construction and completely block the low-temperature water in the middle and lower layers of the reservoir. The constructed cable net structure forms a good stress skeleton and can bear a relatively high load. Description of the Drawings

[0042] Figure 1 It is a schematic diagram of the overall water-proof curtain wall provided in the background art of the present invention,

[0043] Figure 2 It is an overall schematic diagram of a water cutoff curtain wall provided by some embodiments of the present invention.

[0044] Figure 3 It is an overall schematic diagram of a water cutoff curtain wall provided by some embodiments of the present invention, which is a combination of Form Ⅰ and Form Ⅰ.

[0045] Figure 4 It is an overall schematic diagram of a water cutoff curtain wall provided by some embodiments of the present invention, which is a combination of Form Ⅱ and Form Ⅱ.

[0046] Figure 5 It is an overall schematic diagram of a water cutoff curtain wall provided by some embodiments of the present invention, which is a combination of Form Ⅱ and Form Ⅲ.

[0047] Figure 6 It is an overall schematic diagram of a longitudinal cable provided by some embodiments of the present invention.

[0048] Figure 7 It is a partial schematic diagram of a longitudinal cable provided by some embodiments of the present invention.

[0049] Figure 8 It is a schematic diagram of a rectangular cross - cable unit provided by some embodiments of the present invention.

[0050] Figure 9 It is a schematic diagram of a general trapezoidal cross - cable unit provided by some embodiments of the present invention.

[0051] Figure 10 It is a schematic diagram of a right - angled trapezoidal cross - cable unit provided by some embodiments of the present invention.

[0052] Figure 11 It is a schematic diagram of a square curtain unit provided by some embodiments of the present invention.

[0053] Figure 12 It is a schematic diagram of a general trapezoidal curtain unit provided by some embodiments of the present invention.

[0054] Figure 13 It is a schematic diagram of a right - angled trapezoidal curtain unit provided by some embodiments of the present invention.

[0055] Figures 14 - 18 It is a schematic diagram of a connection node provided by some embodiments of the present invention.

[0056] Figure 19 It is a schematic diagram of the overall cross - section of a curtain unit provided by some embodiments of the present invention.

[0057] Figure 20 It is a schematic diagram of the cross - section at the connection between curtain units provided by some embodiments of the present invention.

[0058] Figure 21Schematic diagram of the skirt provided by some embodiments of the present invention

[0059] Figure 22 Cross-sectional schematic diagram of the connection between the skirt and the water cutoff curtain wall provided by some embodiments of the present invention

[0060] Figure 23 Schematic diagram of the first state of the skirt provided by some embodiments of the present invention

[0061] Figure 24 Schematic diagram of the second state of the skirt provided by some embodiments of the present invention

[0062] Explanation of reference numerals

[0063] 1 - longitudinal cable, 2 - transverse cable, 2A - rectangular transverse cable unit, 2B - general trapezoidal transverse cable unit, 2C - right trapezoidal transverse cable unit, 3 - curtain, 3A - square curtain unit, 3B - general trapezoidal curtain unit, 3C - right trapezoidal curtain unit, 4 - skirt, 5 - counterweight component, 6 - connection node, 7 - connection node, 8 - connection node, 9 - connection node, 10 - connection node, 11 - longitudinal joint of the curtain

[0064] 110 - end eye loop, 120 - first eye loop, 130 - first cable splicing section, 140 - tubular thimble, 150 - steel shackle, 210 - second eye loop, 220 - second cable splicing section, 230 - head and tail splicing section of the transverse cable, 240 - second eye loop, 310 - edge connecting cable, 320 - tie, 330 - first waterproof cloth, 331 - second waterproof cloth, 410 - skirt winding, 420 - first connecting cable, 430 - tether, 440 - first connecting piece, 450 - second connecting piece, 610 - flexible shackle, 710 - flexible shackle

[0065] 100 - underwater ground anchor, 200 - connecting device

[0066] L1 - spacing between the first eye loops on the longitudinal cable, which is also the single - width net width after the curtain wraps and stitches the transverse cable

[0067] L2 - longitudinal cable spacing, which is also the spacing between the second eye loops of the transverse cable

[0068] L3 - width of the first waterproof cloth

[0069] L4 - width of the second waterproof cloth Detailed implementation manners

[0070] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0071] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "left", "right", "up", "down", "top", "bottom", etc. used herein to indicate the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. The terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0072] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0073] The present invention provides a water isolation curtain wall, which is traction-supported by the pylons on both sides of the water area, as Figure 1 shown, including longitudinal cables 1 uniformly arranged along the width direction of the water isolation curtain wall, transverse cables 2 uniformly arranged along the height direction of the water isolation curtain wall, and a curtain cloth 3. The longitudinal cables 1 and the transverse cables 2 are connected to form a curtain wall skeleton, and the curtain cloth 3 covers and is connected to the curtain wall skeleton. The water isolation curtain wall is divided into two areas connected up and down along the height direction: a square area fitting the pylon and a V-shaped area fitting the underwater terrain; the square area and the V-shaped area are composed of several rows connected up and down, as Figure 2 shown, and each row includes at least one of the following curtain cloth units: a rectangular curtain cloth unit 3A, a general trapezoidal curtain cloth unit 3B, and a right trapezoidal curtain cloth unit 3C;

[0074] According to the width of the water area, one of the following forms is selected for one row in the square area:

[0075] Form I: One row is composed of one rectangular curtain cloth unit 3A; as Figure 3 The red area.

[0076] Form II, where a row is composed of multiple rectangular curtain units 3A connected by their wide sides; as Figure 4 the red area, and as Figure 5 the upper three rows within the red area.

[0077] According to the width of the water area, one of the following forms is selected for a row within the V-shaped area:

[0078] Form I, where a row is composed of a general trapezoidal curtain unit 3B; as Figure 3 , Figure 4 and Figure 5 the green area in.

[0079] Form II, where a row is composed of two right trapezoidal curtain units 3C connected by their right-angle waists; as Figure 4 the yellow area.

[0080] Form III, where a row is composed of several rectangular curtain units 3A sandwiched between two right trapezoidal curtain units 3C, connected by their right-angle waists and wide sides; as Figure 5 the adjacent yellow and red areas.

[0081] When the inner width of the pylons on both sides of the water area is lower than the longest length that can be produced and transported by a single curtain unit, the water isolation curtain wall provided by the present invention adopts the implementation mode as Figure 3 shown: the combination of Form I and Form I. Currently, the longest length that can be produced for a single curtain unit and meet the transportation limit after compression and packaging is more than 285 meters. When the width of the pylons intercepting the water area on both sides does not exceed this value, the water isolation curtain wall of this implementation mode can be adopted.

[0082] When the inner width of the pylons on both sides of the water area exceeds the longest length that can be produced and transported by a single curtain unit but is lower than two longest lengths, the water isolation curtain wall provided by the present invention adopts the implementation mode as Figure 4 shown: the combination of Form II and Form II.

[0083] When the inner width of the pylons on both sides of the water area exceeds two longest lengths that can be produced and transported by curtain units and even more longest lengths, the water isolation curtain wall provided by the present invention adopts the implementation mode as Figure 5 shown: the combination of Form II and Form III, and the number of rectangular curtain units 3A in the middle red area can be increased accordingly according to the required width.

[0084] In the above embodiments, considering that a single curtain unit needs to be within the maximum transportation volume limit after being packed and the water-blocking curtain is installed in an array form on the water, the water-blocking curtain is divided into several rows in the height direction. The shapes of the curtain units at both ends of each row are designed to fit the shape of the water area to prevent low-temperature water from leaking from the periphery of the water-blocking curtain. Three different-shaped curtain units are combined in different forms according to the width of the water area to form the overall water-blocking curtain. Each row can be composed of one curtain unit, or multiple curtain units are connected and spliced horizontally to form a row; the number of seams of the water-blocking curtain is minimized to reduce the leakage of low-temperature water at the seams.

[0085] To reduce the leakage of low-temperature water at the horizontal seams and vertical seams between adjacent curtain units, the above solution is optimized: the upper and lower adjacent curtain units are lap-connected with a first waterproof cloth 330 in a detachable manner at the horizontal seams; and / or, the left and right adjacent curtain units are lap-connected with a second waterproof cloth 331 in a detachable manner at the vertical seams 11. Exemplarily, the top of the first waterproof cloth 330 is sewn to the bottom of the upper curtain unit at the horizontal seam, and corresponding matching magic tapes are provided at the bottom end of the first waterproof cloth 330 and the top end of the lower curtain unit at the horizontal seam; the left end of the second waterproof cloth 331 is sewn to the right part of the left curtain unit at the vertical seam 11, and corresponding matching magic tapes are provided at the right end of the second waterproof cloth 331 and the left part of the right curtain unit at the vertical seam.

[0086] Covering the seams with waterproof cloth reduces the leakage of low-temperature water at the seams between adjacent curtain units; connecting and fixing with magic tapes facilitates on-site operation.

[0087] To avoid the reduction of the stability of the reticular structure and the weakening of the bearing capacity of the curtain wall skeleton due to too many breakpoints, the horizontal cable units wrapped by the curtain units adopt the form of a single integral horizontal cable with the fewest breakpoints. As Figure 8 and Figure 11 shown, the horizontal cable 2 includes a rectangular horizontal cable unit 2A, a general trapezoidal horizontal cable unit 2B, and a right trapezoidal horizontal cable unit 2C; the rectangular horizontal cable unit 2A is formed by closing a single horizontal cable 2 end to end, and a horizontal cable end splicing section 230 is formed at the end-to-end closed loop; a square curtain is covered and connected to the rectangular horizontal cable unit 2A to form a square curtain unit 3A; as Figure 9 and Figure 12 shown, the general trapezoidal horizontal cable unit 2B is formed by connecting two straight horizontal cables 2 as the bottom sides and two edge connecting cables 310 as the waist sides; a general trapezoidal curtain is covered and connected to the general trapezoidal horizontal cable unit 2B to form a general trapezoidal curtain unit 3B; as Figure 10 and Figure 13 shown, the right trapezoidal horizontal cable unit 2C is formed by connecting a single horizontal cable 2 as the right-angled side and an edge connecting cable 310 as the hypotenuse; a right trapezoidal curtain is covered and connected to the right trapezoidal horizontal cable unit 2C to form a right trapezoidal curtain unit 3C; the cross-sections of the above curtain units are asFigure 19 as shown

[0088] As Figure 6 shown, the spacing between adjacent longitudinal cables 1 is L2, and a plurality of first eye loops 120 are provided on the longitudinal cable 1, and the spacing between adjacent first eye loops 120 is L1; As Figure 8 , Figure 9 and Figure 10 shown, a plurality of second eye loops 210, 240 are provided on the transverse cable 2, the spacing between laterally adjacent second eye loops 210 is L2, and the spacing between longitudinally adjacent second eye loops 210, 240 is L1; As Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, the longitudinal cable 1 and the transverse cable 2 are intersectingly connected to the curtain wall skeleton connection nodes 6, 7, 8, 9, 10 through the first eye loops 120 and the second eye loops 210, 240. Among them, Figures 2 - 5 the curtain wall skeleton connection nodes include the type I connection node 6 as shown in Figure 14 , the type II connection nodes 7, 8 as shown in Figure 15 and Figure 16 , the type III connection node 9 as shown in Figure 17 and the type IV connection node 10 as shown in Figure 18 . The type I connection node 6 is a node where a first eye loop 120 on the longitudinal cable 1 and a second eye loop 210 on the transverse cable 2 are connected by a flexible shackle, and is located at the uppermost edge of the water-proof curtain wall; The type II connection nodes 7, 8 are nodes where a first eye loop 120 on the longitudinal cable 1 and two second eye loops 210 on the transverse cable 2 are connected by a flexible shackle; The type II connection node 7 is located at the connection point of the curtain unit in the adjacent upper and lower rows at the non-longitudinal joint, and the type II connection node 8 is located at the connection points on both sides of the curtain wall skeleton in the square area of the water-proof curtain wall; The type III connection node 9 is a node where a first eye loop 120 on the longitudinal cable 1 and three second eye loops 210 on the transverse cable 2 are connected by a flexible shackle; The type III connection node 9 is located at the lowermost end of the longitudinal joint 11, at the intersection of three different curtain units; The type IV connection node 10 is a node where a first eye loop 120 on the longitudinal cable 1 and four second eye loops 210 on the transverse cable 2 are connected by a flexible shackle; The type IV connection node 10 is located at the intersection of four adjacent curtain units on the longitudinal joint 11. The curtain wall skeleton is bent at the longitudinal joint and connected to the longitudinal cable as a whole, forming a three-cable parallel connection at the longitudinal joint, increasing the connection strength at the longitudinal joint, so that the assembled water-proof curtain wall system of tens of thousands of square meters has a reliable stress structure underwater. Preferably, the first eye loops 120 on the longitudinal cable 1 and the second eye loops 210, 240 on the transverse cable 2 can both be made by interweaving ropes of the same material and the same diameter as the longitudinal and transverse cables. Both ends of the first eye loop 120 form a first rope interweaving section 130, and both ends of the second eye loops 210, 240 form a second rope interweaving section 220; The overall strength is greater than that of the external ring. As Figure 7As shown, an end eye loop 110 is provided at the end of the longitudinal cable 1, and a tubular collar 140 is externally fitted to the end eye loop 110. The tubular collar 149 prevents the cable 1 of the longitudinal cable from being worn by other parts, and at the same time increases the turning radius to ensure that the strength of the longitudinal cable 1 is not lost.

[0089] As Figure 14 and Figure 15 shown, the first eye loop 120 and the second eye loops 210, 240 are connected by flexible shackles 610, 710. The flexible shackles connect and fix all the eye loops at the node to form an integral body, and the flexible shackles are made of ultra-high molecular weight polyethylene cables.

[0090] As Figure 20 shown, adjacent row curtain units, that is, the transverse cables at the transverse seams, are connected by cable ties 320; the cable ties 320 are finished products with self-locking functions;

[0091] In an embodiment provided by the present invention, as Figures 1 - 5 and Figures 21 - 24 shown, the water isolation curtain wall further includes a plurality of skirt edges 4, a plurality of first connecting cables 420 and a plurality of counterweight components 5; the upper ends of the skirt edges 4 are respectively connected to the first connecting cables 420, and the lower ends of the skirt edges 4 are respectively connected to the counterweight components 5; the first connecting cables 420 are connected end to end in sequence; the density of the counterweight components 5 is greater than the density of water.

[0092] The skirt edge has a first state and a second state:

[0093] In the first state, the skirt edge 4 takes the counterweight component 5 as a core and is wound from the lower end to the upper end to form a skirt edge winding 410;

[0094] In the second state, the skirt edge winding 410 unfolds, and the skirt edge 4 is perpendicular to the direction of the water flow.

[0095] A plurality of skirt edges are sequentially connected to form a water blocking surface along the irregular V-shaped curve at the lower edge of the water isolation curtain wall to block the leakage of low-temperature water from the gap between the water isolation curtain wall and the bottom of the water.

[0096] Embodiment

[0097] This embodiment relies on the test project of the water isolation curtain wall for low-temperature water treatment in a hydropower station. The hydropower station is the second of the 15 cascade power stations on the main stream of a certain river, with multi-year regulation performance. The normal storage level of the reservoir is 475.00 m, the maximum dam height is 185.5 m, and the elevation of the bottom plate of the intake of the water diversion and power generation system is 408.00 m. After the reservoir is impounded, obvious temperature stratification occurs in the reservoir area, and the water temperature at the bottom of the reservoir is only 9.6 °C, resulting in the water temperature discharged in spring and summer being lower than the natural water temperature, which has an adverse impact on the spawning and reproduction of downstream fish. In order to enable fish to have suitable water temperature conditions during the spawning period, it is necessary to build a water isolation curtain wall about 250 m upstream of the intake of the power station to increase the water temperature discharged from this hydropower station.

[0098] As Figure 4 shown, the required curtain for this hydropower station is about 60,000 ㎡, and the curtain structure is "220kN load-bearing net + 0.75mm waterproof cloth + 100kN protection net". Horizontally divide the curtain into one row every 5m, and the longest single curtain is up to 470.4m, exceeding the longest length by 285 meters. Limited by the manufacturing process and considering transportation convenience, the extra-long single curtain needs to be divided into 2 sections. The 11 rows of extra-long curtains in the upper red and yellow areas are spliced with two curtain units, that is, 6 rectangular curtain units and 16 right-angled trapezoidal curtain units, a total of 22 curtain units; the 14 rows of curtains in the lower green area are within the length range, and a single general trapezoidal curtain unit is used as one row, a total of 14 curtain units. The entire water-proof curtain wall is composed of 36 curtain units; the longest single curtain is 283m long, and the shortest single curtain is 63m long. The four peripheral edges of the curtain unit are wrapped and sewn with cross cable 2, as Figures 11 - 13 shown.

[0099] After the curtain units are transported to the site, the splicing construction needs to be completed on site. The main contents of the splicing work include: splicing of upper and lower cross cables, splicing of longitudinal seams at the left and right ends of a single curtain unit, connection of longitudinal cables and cross cables, connection of skirt edges and edge connection cable 310, etc.; the connection points of longitudinal cables and cross cables and the curtain monitoring equipment are all on the back water surface of the curtain. For construction convenience and to improve construction efficiency, the back water surface is preferably facing up during curtain splicing. Adjacent curtain units are spliced with an inflatable air cushion on the on-site water construction platform and are connected and installed with cable ties 320 on the upper part, as Figure 20 shown.

[0100] The assembly method of the water-proof curtain wall includes the following steps:

[0101] Number the curtain units in sequence according to their positions in the water-proof curtain wall;

[0102] Starting from the upper end of the water-proof curtain wall, taking the same row as an installation unit, with the water-facing side of the curtain facing down, complete the connection of longitudinal cables and cross cables in the same curtain unit, the splicing of the left and right cross cables and longitudinal cables at the longitudinal seams of adjacent left and right curtain units, and the splicing of the cross cables at the cross seams of adjacent upper and lower row curtain units;

[0103] Repeat the above steps to complete the connection of the adjacent lower row of curtain units until the connection of the curtain units in the bottom row of the water-proof curtain wall.

[0104] The longitudinal cable 1 uses a DM20 ultra-high molecular weight polyethylene cable with a diameter of 40mm, wrapped with an anti-abrasion sleeve. The detailed drawing is as Figure 6 、 Figure 7As shown in the figure. The end eye loop 110 is formed by splicing the tail of the longitudinal cable itself. A tubular thimble 140, i.e., a heart-shaped thimble, is externally equipped on the eye loop, which is convenient for connecting the top of the longitudinal cable to the floating box winch and connecting the bottom of the longitudinal cable 1 to the underwater anchor. The first function is to avoid abrasion between the longitudinal cable stay and other parts by means of the tubular thimble 140. The second function is to increase the turning radius and ensure that the strength of the longitudinal cable is not lost. Multiple first eye loops 120 are arranged in the middle of the longitudinal cable 1. The eye loop is formed by splicing a cable with the same diameter as the longitudinal cable material. The spacing L1 between the eye loops is 5 m, which is the width of the curtain unit and the spacing of the transverse cable 2.

[0105] The transverse cable is made of SK78 ultra-high molecular weight polyethylene cable with a diameter of 18 mm and is wrapped and sewn around the periphery of the curtain. When applied to the periphery of the curtain with longitudinal seams and the side of the curtain does not contact the underwater terrain, a rectangular transverse cable unit 2A is adopted, as Figure 8 、 11 shown. The second eye loop 240 at the end of the transverse cable is formed by splicing the tail of the transverse cable itself; multiple second eye loops 210 are arranged on the transverse cable. The eye loop is formed by splicing a cable with the same diameter as the transverse cable material. The spacing L2 between the laterally adjacent second eye loops 210 is 15.6 m, which is the spacing of the longitudinal cables. When applied to the periphery of the curtain without longitudinal seams, a general trapezoidal transverse cable unit 2B is adopted, as Figure 9 and Figure 12 shown. The transverse cable unit is formed by bending a transverse cable to form a right-angled side, combining a side edge connecting cable 310 as the hypotenuse, and the second eye loop 240 at the end is formed by splicing the tail of the transverse cable itself; multiple spliced second eye loops 210 are arranged in the middle of the transverse cable. The eye loop is formed by splicing a cable with the same diameter as the transverse cable material. The spacing L2 between the laterally adjacent second eye loops is 15.6 m, which is the spacing of the longitudinal cable 1. When applied to the periphery of the curtain with longitudinal seams and the side of the curtain contacts the underwater terrain, a right-angled trapezoidal transverse cable unit 2C is adopted, as Figure 10 and Figure 13 shown. It is formed by combining two transverse cables 2 as the bottom and two side edge connecting cables 310 as the hypotenuse. Multiple spliced second eye loops 210 are arranged on the transverse cable 2. The eye loop is formed by splicing a cable with the same diameter as the transverse cable material. The spacing L2 of the eye loops is 15.6 m, which is the spacing of the longitudinal cables.

[0106] The longitudinal and transverse cable nodes are respectively corresponding to type I nodes, type II nodes, type III nodes, and type IV nodes according to the number of eye loops; specifically, please refer to the type I connection node 6 as shown in Figure 14 and Figure 15 and Figure 16 shown, the type II connection nodes 7, 8 as shown in Figure 17 shown, the type III connection node 9 as shown in Figure 18 and the type IV connection node 10 as shown in

[0107] To prevent the bottom curtain of the curtain wall system from floating up due to the impact of water flow during operation and a large amount of low-temperature water from flowing downward, a counterweight component 5 is designed and installed at the bottom of the curtain wall. The counterweight component 5 is sewn to the bottom of the skirt 4. The counterweight component 5 can be a counterweight chain to ensure that the lower end of the curtain remains fixed in position under the action of the gravity of the counterweight component 5 during operation and does not produce vertical displacement. During installation, the skirt 4 is first wound with a water-soluble fiber rope, such as Figure 22 and 23 shown; after installation and operation, the water-soluble fiber rope breaks and hydrolyzes to unfold the skirt 4, as Figure 24 shown.

[0108] After implementing the large-area cable-net membrane flexible water-blocking curtain wall system, a water-blocking wall is formed on the water surface, which can prevent the low-temperature water in the middle and lower layers of the reservoir from passing through. According to the measured data, after implementing the water-blocking curtain low-temperature water treatment measures at a certain hydropower station, the average temperature of the water flowing downward during the fish breeding period from April to June increased by 2.8 °C. The water temperature improvement effect of this embodiment is good, which improves the fish breeding conditions, is beneficial to ecological diversity, and has good popularization value.

[0109] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

Claims

1. A water-isolating curtain wall is traction-supported by cable towers on both sides of a water area, and includes longitudinal cables (1) uniformly arranged along the width direction of the water-isolating curtain wall, transverse cables (2) uniformly arranged along the height direction of the water-isolating curtain wall, and a curtain cloth (3). The longitudinal cables (1) and the transverse cables (2) are connected to form a curtain wall framework, and the curtain cloth (3) covers and is connected to the curtain wall framework. It is characterized in that, The water cutoff curtain wall is divided into two zones connected up and down along the height direction: a square zone attached to the cable tower and a V-shaped zone attached to the underwater terrain; the square zone and the V-shaped zone are composed of several rows connected up and down, and each row includes at least one of the following curtain units: a rectangular curtain unit (3A), a general trapezoidal curtain unit (3B), and a right trapezoidal curtain unit (3C); According to the water area width, one of the following forms is selected for a row in the square zone: Form I: A row is composed of one rectangular curtain unit (3A); Form II: A row is composed of multiple rectangular curtain units (3A) connected by their wide sides; According to the water area width, one of the following forms is selected for a row in the V-shaped zone: Form 1: A row is composed of one general trapezoidal curtain unit (3B); Form 2: A row is composed of two right trapezoidal curtain units (3C) connected by their right-angle waists; Form 3: A row is composed of several rectangular curtain units (3A) sandwiched between two right trapezoidal curtain units (3C) and connected by their right-angle waists and wide sides; 2. The water-blocking curtain wall according to claim 1, wherein, The curtain units of adjacent upper and lower rows are lap-connected with a first waterproof cloth (330) in a detachable manner at the transverse seam; 3. The water cutoff curtain wall according to claim 1, characterized in that, The curtain units adjacent to each other left and right in the same row are lap-connected with a second waterproof cloth (331) in a detachable manner at the longitudinal seam (11); 4. The water cutoff curtain wall according to claim 1, wherein The distance between adjacent longitudinal cables (1) is L2, and a plurality of first eye loops (120) are provided on the longitudinal cable (1), and the distance between adjacent first eye loops (120) is L1; The transverse cable (2) includes a rectangular transverse cable unit (2A), a general trapezoidal transverse cable unit (2B), and a right trapezoidal transverse cable unit (2C); The rectangular transverse cable unit (2A) is formed by a transverse cable (2) connected end to end in a closed loop; a square curtain covers and is connected to the rectangular transverse cable unit (2A) to form the square curtain unit (3A); The general trapezoidal transverse cable unit (2B) is formed by connecting two transverse cables (2) as the bottom sides and two edge connecting cables (310) as the waist sides; a general trapezoidal curtain covers and is connected to the general trapezoidal transverse cable unit (2B) to form the general trapezoidal curtain unit (3B); The right trapezoidal transverse cable unit (2C) is formed by connecting one transverse cable (2) as the right-angle side and one edge connecting cable (310) as the hypotenuse; a right trapezoidal curtain covers and is connected to the right trapezoidal transverse cable unit (2C) to form the right trapezoidal curtain unit (3C); A plurality of second eye loops (210, 240) are provided on the transverse cable (2), the distance between adjacent second eye loops (210, 240) in the transverse direction is L2, and the distance between adjacent second eye loops (210, 240) in the longitudinal direction is L1; The longitudinal cable (1) and the transverse cable (2) are intersectedly connected to the connection nodes (6, 7, 8, 9, 10) of the curtain wall skeleton through the first eye loops (120) and the second eye loops (210, 240); 5. The water cutoff curtain wall according to claim 4, characterized in that, The first eye loop (120) is made by inserting and braiding a rope; 6. The water cutoff curtain wall according to claim 4, wherein, The second eye loop (210, 240) is made by inserting and braiding a rope; 7. The water cutoff curtain wall according to claim 4, wherein The first eye loop (120) and the second eye loop (210, 240) are connected through flexible shackles (610, 710); 8. The water-blocking curtain wall according to claim 1, wherein, An end eye loop (110) is provided at the end of the longitudinal cable (1), and a tubular collar (140) is externally fitted to the end eye loop (110).

9. The water cutoff curtain wall according to any one of claims 1-8, characterized in that, It further includes a plurality of skirts (4), a plurality of first connecting cables (420), and a plurality of counterweight components (5); The upper ends of the skirts (4) are respectively connected to the first connecting cables (420), and the lower ends of the skirts (4) are respectively connected to the counterweight components (5); the first connecting cables (420) are sequentially connected end to end; the density of the counterweight components (5) is greater than the density of water; The first connecting cable (420) is connected to the edge connecting cable (310) so that the skirt (4) is distributed along the lower edge of the V-shaped area; The skirt (4) has a first state and a second state: In the first state, the skirt (4) takes the counterweight component (5) as a core and is wound from the lower end to the upper end to form a skirt winding (410); In the second state, the skirt winding (410) unfolds, and the skirt (4) is perpendicular to the direction of the water flow.

10. An assembly method of the water isolation curtain wall according to any one of claims 1-9, characterized in that, It includes the following steps: Number the curtain units in sequence according to the positions of the curtain units in the water-proof curtain wall; Starting from the upper end of the water-proof curtain wall, taking the same row as an installation unit, with the water-facing side of the curtain facing downwards, complete the connection of the longitudinal cable and the transverse cable in the same curtain unit, the splicing of the transverse cables and the longitudinal cables at the longitudinal joints at the left and right ends of the adjacent curtain units on the left and right, and the splicing of the transverse cables at the transverse joints of the adjacent curtain units in the upper and lower rows; Repeat the above steps to complete the connection of the adjacent curtain units in the next row until the connection of the curtain units in the lowermost row of the water-proof curtain wall is completed.

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