CN117721751A - Water arresting cable clamp, water arresting cable system and method - Google Patents

Abstract

The invention provides an overwater arresting cable clamp, an overwater arresting cable system and an overwater arresting cable method. The water blocking cable clamp comprises a first upper half cable body, a second upper half cable body arranged at one end of the first upper half cable body and a lower half cable body butted at the lower ends of the first upper half cable body and the second upper half cable body, wherein the second upper half cable body and the lower half cable body are butted up and down to form a cylindrical section, the first upper half cable body and the lower half cable body are butted up and down to form a horn section, an anchoring cavity is arranged in the cylindrical section, a variable cross section cavity is arranged in the horn section, and the anchoring cavity is communicated with the variable cross section cavity. The invention can adapt to the relative deformation of the arresting rope in any direction of 360 degrees, reduces the larger relative bending deformation generated between the arresting rope and the rope clamp, and reduces the stress concentration of the arresting rope.

Description

Water arresting cable clamp, water arresting cable system and method

Technical Field

The invention relates to the technical field of civil engineering, in particular to an overwater arresting cable clamp, an overwater arresting cable system and an overwater arresting cable method.

Background

The high-strength parallel steel wire blocking cable has high tensile strength, large span and strong bearing capacity, and is widely used in water suspension cable blocking cable systems of rivers, reservoirs and the like, and cable clamps are indispensable force transmission members for connecting main cables and floating bodies. At present, two kinds of cable clamps for high-strength parallel steel wire blocking cables are mainly used, one kind of cable clamps is provided with a linear inner hole axis, and the other kind of cable clamps is provided with a curve-shaped inner hole axis along the length direction of the blocking cable, so as to adapt to deformation of the blocking cable and the cable clamps and improve the anti-skid capability of the cable clamps. These two cable clamps have the following problems:

in the linear cable clamp, no matter in which direction the blocking cable and the cable clamp generate relative bending deformation, additional bending stress is generated on the blocking cable, and the greater the relative bending deformation is, the greater the additional bending stress is on the blocking cable. When the total tensile stress on the arresting rope exceeds the tensile strength of the arresting rope, the arresting rope can generate plastic deformation until fracture and damage.

And the inner hole is a curved cable clamp, the diameter of the inner hole is consistent along the direction of the arc axis, the inner hole structure is plane symmetrical, and the arc structure of the cable clamp is matched with the arc shape of the arresting cable, so that the cable clamp is tightly combined with the arresting cable. Under the loading condition, when the arresting rope and the rope clamp are bent and deformed relatively in the symmetrical plane, the arresting rope can generate additional bending stress.

The two modes can not adapt to larger relative deformation in any direction between the arresting rope and the rope clamp, and can generate larger additional bending stress on the arresting rope, so that the structural safety and the service life of the arresting rope are affected.

At present, under the adverse working conditions such as water level change, wind and wave influence, floater impact, underwater blocking net of a floating body or uneven stress of a water-proof film, large relative bending deformation is unavoidable between a blocking rope connected with the water-borne floating body and a rope clamp, and at the moment, the bending deformation generates large additional bending stress in the blocking rope, so that huge potential safety hazards are left for the blocking rope.

Disclosure of Invention

The invention aims to provide an overwater arresting cable clamp, an overwater arresting cable system and a method, which can adapt to larger relative displacement or deformation in any direction generated under various adverse working conditions, and simultaneously avoid larger additional bending stress generated in the arresting cable due to larger relative bending deformation of the arresting cable and the cable clamp, so that the safety of an arresting cable structure is ensured.

The technical scheme of the invention is as follows: a water blocking cable clamp comprises a first upper half cable body, a second upper half cable body arranged at one end of the first upper half cable body, and a lower half cable body butted with the lower ends of the first upper half cable body and the second upper half cable body, the second upper half rope body is in up-down butt joint with the lower half rope body to form a cylindrical section, the first upper half rope body is in up-down butt joint with the lower half rope body to form a horn section, an anchoring cavity is arranged in the cylindrical section, a variable cross section cavity is arranged in the horn section, and the anchoring cavity is communicated with the variable cross section cavity.

In the scheme, through the cylindrical section that is used for anchoring the arresting rope and the loudspeaker section that is installed with the arresting rope clearance, can adapt to the installation of the overwater arresting rope of large deformation, connect the arresting rope on the body through this cable clamp, make the arresting rope can adapt to the great relative displacement or the deformation of arbitrary direction that produce under the various adverse operating mode, simultaneously, avoid arresting rope and cable clamp to take place great relative bending deformation and produce great additional bending stress in the arresting rope, guarantee the safety of arresting rope structure.

Preferably, the inner wall of the variable cross-section cavity is of an inward concave arc structure which is close to the axial lead of the horn section and is bent outwards. The structure can be smoothly connected with the inner wall of the anchoring cavity, and the holding force of the inner wall of the variable-section cavity to the arresting rope is gradually loosened, so that the structure can be better adapted to deformation of the arresting rope in any direction.

Preferably, the inner wall of the variable cross-section cavity of the concave circular arc structure is provided with a radius R, wherein r=3000-10000 mm. The radius R is determined by the saggital ratio of the arresting cables, the spacing of the floats, and the maximum relative displacement or deformation that may occur between the floats.

Preferably, the cylindrical section has an inner diameter D, the horn section has an inner diameter D, D > D, d=stopper wire diameter+e, e=3 to 5mm. The cylindrical section makes the arresting rope compress and deform in the anchoring cavity, so that the holding force of the cylindrical section on the arresting rope is increased, and the arresting rope is prevented from sliding relative to the rope clamp under the loading state of the floating body.

Preferably, the first upper half rope body and the lower half rope body and the second upper half rope body and the lower half rope body are engaged through concave-convex tooth-shaped structures, and the tooth-shaped structures are provided with first fasteners. The concave-convex tooth structure reduces the shearing force of the first fastener along the direction of the arresting rope.

Preferably, the inner wall of the variable cross-section cavity is provided with an annular notch for embedding a water stop rubber ring. The water stop rubber is installed in an embedded mode, so that the waterproof effect between the cable clamp and the blocking cable is improved.

Preferably, the lower half rope body is provided with a plurality of floating body fixing plates on the horn section, and the floating body fixing plates are provided with second fasteners used for being connected with floating bodies. The rope clamp is fixed with the floating body through the floating body fixing plate, so that the blocking rope can not generate relative bending deformation due to rotation or displacement of the floating body, and the blocking rope is prevented from generating additional bending stress.

The invention also provides a water arresting cable system, which comprises an arresting cable and a plurality of floating bodies, wherein two ends of the arresting cable are fixed on two sides through anchor cable towers, the floating bodies are positioned on the middle section of the arresting cable at intervals, the two water arresting cable clamps are symmetrically arranged on each floating body, and variable cross-section cavities of the two water arresting cable clamps on each floating body are mutually far away; the arresting rope passes through the anchoring cavity and the variable cross-section cavity of each water arresting rope clamp.

Two water arresting rope clamps are symmetrically arranged on each floating body, under the load state, each floating body bears the load in the horizontal and vertical directions, the load born by the floating body is transmitted to the arresting rope through the two water arresting rope clamps, the arresting rope transmits the load to the anchoring rope tower, and the load born by the anchoring rope tower is transmitted to the foundation. Under the loaded state, the arresting rope and the horizontal surface form a space catenary shape with a certain intersection angle, and the rope clamp can adapt to larger relative deformation of the arresting rope relative to any direction of the floating body

Preferably, the water arresting cable clamp is arranged at the end part of the floating body.

The invention also provides a method for installing the above water arresting cable system, which comprises the following steps:

under the condition that the arresting rope is not under load, two lower half rope bodies are symmetrically arranged at the head end and the tail end of the floating body in the length direction of the arresting rope;

step two, stripping the protective sleeve on the arresting rope, and sleeving a plurality of water stop rubbers corresponding to the number of the floating bodies on the protective sleeve;

step three, placing the arresting rope in the lower half rope body, and sliding a water-stopping rubber ring arranged on the arresting rope to enable the water-stopping rubber ring to enter the annular notch;

step four, sequentially installing a second upper half rope body and a first upper half rope body, and compressing and deforming the arresting rope in an anchoring cavity of the cylindrical section to form an anchoring;

step five, repeating the step two to the step four, and symmetrically installing two water arresting cable clamps on other floating bodies; and (5) finishing the installation.

Compared with the related art, the invention has the beneficial effects that:

1. the invention better solves the problem that when the existing cable clamp cannot adapt to the large relative deformation in any direction between the arresting cable and the floating body, the main cable is influenced by the large additional bending stress generated in the main cable due to the large relative bending deformation between the arresting cable and the cable clamp; when the water-borne floating body generates large relative deformation in any direction between the arresting cable connected with the floating body and the floating body due to large water level change, wind wave influence, floating object impact, uneven stress of a lower film net of the floating body and the like, the water-borne arresting cable clamp can adapt to the deformation, and the arresting cable and the cable clamp cannot generate large relative bending deformation to cause large additional bending stress in the main cable, so that the safety and the service life of the arresting cable structure are effectively ensured;

2. the water arresting cable clips are fixed with the floating bodies through the second fastening pieces, and the cylindrical sections of the cable clips are anchored with the arresting cable, so that the arresting cable between the cylindrical sections of the two cable clips on each floating body cannot generate relative bending deformation due to rotation or displacement of the floating bodies, and the arresting cable is prevented from generating additional bending stress;

3. the variable cross-section cavity structure of the horn section can adapt to the relative deformation of the arresting rope in any direction of 360 degrees, reduces the relative bending deformation generated between the arresting rope and the rope clamp, and reduces the stress concentration of the arresting rope.

Drawings

FIG. 1 is a schematic elevational view of an above-water stopper cable clip according to the present invention;

FIG. 2 is a schematic cross-sectional view of the above-mentioned rope clip;

FIG. 3 is a schematic cross-sectional view of a cylindrical section;

FIG. 4 is a schematic cross-sectional view of a horn section;

FIG. 5 is a schematic elevation view of the above-water stopper cable system of the present invention;

FIG. 6 is a schematic plan view of the water-based stopper cable system of the present invention;

FIG. 7 is a schematic view of the installation of a rope clip and a stopper rope.

In the accompanying drawings: 1. a first upper half cable body; 2. a second upper half cable body; 3. a lower half rope body; 4. a tooth-shaped structure; 5. a first fastener; 6. a second fastener; 7. a connecting joint; 8. a floating body fixing plate; 9. a cylindrical section; 91. an anchor cavity; 10. an annular notch; 11. a variable cross-section cavity; 12. a horn section; 13. a stopper cable; 131. a protective sleeve; 14. a floating body; 15. anchoring the cable tower; 16. and (3) water-stopping rubber.

Detailed Description

The invention will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are used hereinafter to denote only the directions corresponding to the upper, lower, left, and right directions of the drawings, and do not limit the structure.

As shown in fig. 1 and 2, the water arresting cable clip provided in this embodiment includes a first upper half cable body 1, a second upper half cable body 2, a lower half cable body 3, a tooth structure 4, a first fastening member 5, a second fastening member 6, a connecting seam 7, a floating body fixing plate 8, a cylindrical section 9, an annular notch 10, a variable cross-section cavity 11 and a horn section 12.

The second upper half rope body 2 is arranged at one end of the first upper half rope body 1, and a connecting seam 7 is formed between the second upper half rope body and the first upper half rope body. The lower half rope body 3 is butted with the lower ends of the first upper half rope body 1 and the second upper half rope body 2. The second upper half rope body 2 is in up-down butt joint with the lower half rope body 3 to form a cylindrical section 9, the first upper half rope body 1 is in up-down butt joint with the lower half rope body 3 to form a horn section 12, an anchoring cavity 91 is arranged in the cylindrical section 9, a variable cross section cavity 11 is arranged in the horn section 12, and the anchoring cavity 91 is communicated with the variable cross section cavity 11.

The first upper half rope body 1, the second upper half rope body 2 and the lower half rope body 3 are cast by cast steel, the inner wall of the relative rear variable cross section cavity 11 and the inner wall of the cylindrical section 9 are smoothly connected at the connecting joint 7, and the anchoring cavity 91 and the variable cross section cavity 11 are in a space axisymmetric shape along the center line of the rope clamp.

The inner wall of the variable cross-section cavity 11 is of an inward concave arc structure which is close to the axial lead of the horn section 12 and is bent outwards. The inner wall of the variable cross-section cavity 11 with the concave circular arc structure is provided with a radius R, wherein the radius R is determined according to the saggital ratio of the arresting ropes, the distance between floating bodies and the maximum relative displacement or deformation possibly occurring between the floating bodies, and r=3000-10000 mm is generally adopted.

The length of the second upper half rope body 2 is based on the principle that the rope clamp and the arresting rope 13 do not slide relatively after being fastened with the lower half rope body 3. The length of the first upper half rope body 1 is comprehensively determined according to the difference value of the radius R, the maximum diameter D of the inner hole of the horn section, the diameter D of the anchoring cavity 91 and the like. The cylindrical section 9 has an inner diameter D, the horn section 12 has an inner diameter D, D > D, d=stopper wire diameter +e, e=3 to 5mm.

As shown in fig. 1, 3 and 4, the first upper half rope body 1 and the lower half rope body 3 and the second upper half rope body 2 and the lower half rope body 3 are engaged by a concave-convex tooth-shaped structure 4, and a first fastening piece 5 is arranged on the tooth-shaped structure 4. The connecting structure can increase the friction force between the connecting structures and avoid the relative sliding of the cable clamp and the blocking cable piece under the loading state of the floating body. The tooth-shaped structure 4 protrudes in the radial direction to the outer sides of the outer walls of the cylindrical section 9 and the horn section 12, so that the installation of the first fastening piece 5 is facilitated.

As shown in fig. 2, an annular notch 10 for embedding a water stop rubber ring is arranged on the inner wall of the variable cross-section cavity 11. As shown in fig. 2 and 4, the lower half rope 3 is provided with a plurality of floating body fixing plates 8 on the horn section 12, and the floating body fixing plates 8 are provided with second fasteners 6 for connecting with floating bodies 14.

As shown in fig. 5 and 6, the present invention further provides an upper arresting cable system, which includes an arresting cable 13 and a plurality of floating bodies 14, wherein two ends of the arresting cable 13 are fixed on two sides through anchor cable towers 15, each floating body 14 is symmetrically provided with two above-mentioned water arresting cable clamps, and variable cross-section cavities 11 of the two water arresting cable clamps on each floating body 14 are far away from each other. The stopper cables 13 pass through the anchor lumen 91 and variable cross-section lumen 11 (as shown in figure 7) of each of the above-mentioned waterborne stopper cable clamps. A plurality of said floats 14 are spaced apart on the intermediate section of the rope 13. The distance between the floating bodies 14 is comprehensively determined according to the sagittal ratio of the arresting ropes 13. The two above-mentioned water stopper cable clips provided on the floating body 14 are provided at the end portions of the floating body 14.

Each float 14 is subjected to horizontal and vertical loads and is transferred to the stopper rope 13 by means of two waterborne stopper rope clamps, the stopper rope 13 in turn transferring the loads to the anchor rope towers 15. The load borne by the anchor towers 15 is transferred to the foundation. Under the loaded state, the arresting rope 13 and the horizontal surface form a space catenary linearity with a certain intersecting angle, and the rope clamp can adapt to larger relative deformation of the arresting rope 13 relative to the floating body 14 in any direction.

The cable grip mounted on the first floating body 14 on the shore is more compliant to the relative deformation than the cable grip on the other floating bodies 14, so that the difference between the inner diameter D and the inner diameter D of the cable grip on the floating body 14 is greater. The difference between the inner diameter D and the inner diameter D on the cable clamp at the rest position is properly reduced. At the same time, the radius R is also adapted to the relative deformation of the stopper rope 13 and the rope clip.

The invention also provides a method for installing the above water arresting cable system, which comprises the following steps:

in the first step, the lower half rope body 3 is symmetrically arranged at the head and tail ends of the floating body 14 in the length direction of the arresting rope 13 in an unloaded state. The holes in the float securing plate 8 are aligned with corresponding holes in the float 14 and the second fasteners 6 are installed in the aligned holes.

And secondly, stripping the protective sleeves 131 (PE) on the arresting ropes 13, and sleeving a plurality of water stop rubbers 16 corresponding to the number of the floating bodies 14 on the protective sleeves.

And thirdly, placing the arresting rope 13 in the lower half rope body 3, and sliding a water stop rubber ring 16 arranged on the arresting rope 13, so that the water stop rubber ring 16 enters the annular notch 10.

And step four, sequentially installing a second upper half rope body 2 and a first upper half rope body 1, assembling a concave-convex tooth-shaped structure 4 between the first upper half rope body 1 and a lower half rope body 3, assembling a concave-convex tooth-shaped structure 4 between the second upper half rope body 2 and the lower half rope body 3, and then installing a first fastening piece 5. The longitudinal directions of the first upper half rope body 1 and the second upper half rope body 2 are tightly combined together through the connecting seam 7. The concave-convex tooth-shaped structure 4 is a structure with a convex upper part and a concave lower part, and forms a buckling structure of the snap fastener. As shown in fig. 3 and 4, the concave-convex tooth shapes are arranged on the radial outer walls of the second upper half rope body 2, the first upper half rope body 1 and the lower half rope body 3, so that the first fastening piece 5 and the second fastening piece 6 are convenient to install. The relief tooth formation 4 reduces the shear force of the first fastener 5 in the direction of the stopper rope 13. Meanwhile, a reserved gap C (shown in fig. 3) is arranged between the tooth-shaped structure 4 of the second upper half rope body 2 and the tooth-shaped structure 4 of the lower half rope body 3, and the blocking rope 13 is compressed and deformed in the anchoring cavity 91 of the cylindrical section 9 to form anchoring by fastening the first fastening piece 5. Thereby increasing the grip force of the anchoring cavity 91 of the cylindrical section 9 on the arresting rope 13, increasing the friction force between the two, and avoiding the sliding between the rope clamp and the arresting rope 13 under the loading state of the floating body 14.

Step five, repeating the step two to the step four, and symmetrically installing two water arresting cable clamps on other floating bodies 14; and (5) finishing the installation.

The cable clamps are fixed with the floating body 14 through the floating body fixing plate 8 and the second fastening piece 6, the floating body 14 is anchored at the cylindrical section 9 of the cable clamps, relative bending deformation cannot be generated due to rotation or displacement of the floating body 14, and extra additional bending stress of the blocking cable 13 between the two cable clamps on the floating body 14 is avoided. Meanwhile, when larger relative displacement or deformation is generated between the floating bodies 14 or between the floating bodies 14 and the anchoring rope towers 15, the variable cross-section cavity 11 can adapt to the relative deformation of the arresting rope 13 in any 360-degree direction, so that the larger relative bending deformation of the arresting rope 13 and the rope clamps is reduced, the stress concentration of the arresting rope is reduced, and the safety of the arresting rope is ensured.

The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.

Claims (10)

1. The water blocking cable clamp is characterized by comprising a first upper half cable body (1), a second upper half cable body (2) arranged at one end of the first upper half cable body (1) and a lower half cable body (3) butted with the lower ends of the first upper half cable body (1) and the second upper half cable body (2), the second upper half rope body (2) is in butt joint with the lower half rope body (3) from top to bottom to form a cylindrical section (9), the first upper half rope body (1) is in butt joint with the lower half rope body (3) from top to bottom to form a horn section (12), an anchoring cavity (91) is arranged in the cylindrical section (9), a variable cross section cavity (11) is arranged in the horn section (12), and the anchoring cavity (91) is communicated with the variable cross section cavity (11).

2. The water blocking cable clip as recited in claim 1, wherein the inner wall of the variable cross-section cavity (11) is a concave arc structure which is bent outward toward the axis of the horn section (12).

3. The water stopper cable clamp according to claim 2, characterized in that the inner wall of the variable cross-section cavity (11) of the concave circular arc structure has a radius R, r=3000-10000 mm.

4. The marine stopper cable clamp according to claim 1, wherein the cylindrical section (9) has an inner diameter D, the trumpet section (12) has an inner diameter D, D > D, D = stopper cable diameter +e, e = 3-5 mm.

5. The water blocking cable clamp according to claim 1, wherein the first upper half cable body (1) and the lower half cable body (3) and the second upper half cable body (2) and the lower half cable body (3) are engaged through concave-convex tooth-shaped structures (4), and first fasteners (5) are arranged on the tooth-shaped structures (4).

6. The water blocking cable clamp according to claim 1, wherein an annular notch (10) for embedding a water stop rubber ring (16) is formed in the inner wall of the variable cross-section cavity (11).

7. The water blocking cable clamp according to claim 1, characterized in that the lower half cable body (3) is provided with a plurality of floating body fixing plates (8) on the horn section (12), and the floating body fixing plates (8) are provided with second fasteners (6) for connecting with floating bodies (14).

8. An overwater arresting cable system comprises an arresting cable (13) and a plurality of floating bodies (14), wherein two ends of the arresting cable (13) are fixed on two sides through anchor cable towers (15), and the floating bodies (14) are positioned on the middle section of the arresting cable (13) at intervals, and the overwater arresting cable system is characterized in that two overwater arresting cable clamps as claimed in any one of claims 1-7 are symmetrically arranged on each floating body (14), and variable cross-section cavities (11) of the two overwater arresting cable clamps on each floating body (14) are mutually far away; the arresting rope (13) passes through an anchoring cavity (91) and a variable cross-section cavity (11) of each water arresting rope clamp.

9. The marine stopper cable system of claim 8 wherein the marine stopper cable clamp is located at an end of the float (14).

10. A method of installing a water barrier cable system as claimed in claim 8 or 9, comprising the steps of:

firstly, symmetrically installing two lower half rope bodies (3) at the head end and the tail end of a floating body (14) in the length direction of a blocking rope (13) in an unloaded state;

stripping the protective sleeves (131) on the arresting ropes (13), and sleeving a plurality of water stop rubbers (16) corresponding to the floating bodies (14) in number on the protective sleeves;

step three, placing the arresting rope (13) in the lower half rope body (3), and sliding a water stop rubber ring (16) arranged on the arresting rope (13) to enable the water stop rubber ring (16) to enter the annular notch (10);

step four, sequentially installing a second upper half rope body (2) and a first upper half rope body (1), and compressing and deforming a blocking rope (13) in an anchoring cavity (91) of the cylindrical section (9) to form an anchoring;

step five, repeating the step two to the step four, and symmetrically installing two water arresting cable clamps on other floating bodies (14); and (5) finishing the installation.