Flexible gabion net underwater hoisting construction equipment and method thereof

Abstract

The present application belongs to the technical field of loading and unloading and hoisting, in particular discloses a flexible gabion net underwater hoisting construction equipment and method, wherein the hoisting construction equipment comprises a lifting appliance, the top and bottom of the lifting appliance are designed as openings, a gabion net is arranged on the inner side of the lifting appliance, and a plurality of vertical partitions are distributed on the inner side of the gabion net; the number of movable plates is two, and the two movable plates are symmetrically hinged on the front and rear sides of the bottom of the lifting appliance. The flexible gabion net underwater hoisting construction method provided by the present application, aiming at the above technical pain points, innovatively designs the lifting appliance and the supporting construction process, does not need to create dry land construction conditions, realizes direct filling, accurate hoisting and putting of the gabion net underwater, has the advantages of convenient operation, strong stability, high operation efficiency, accurate positioning and good universality, and effectively solves the problems existing in the prior art.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of loading and unloading hoisting, and particularly relates to a flexible gabion net underwater hoisting construction equipment and a method thereof. BACKGROUND

[0002] In underwater protection engineering construction, flexible gabion nets are widely used in foundation protection, slope reinforcement and other scenes due to their good water permeability, integrity and erosion resistance.

[0003] However, the existing flexible gabion net construction technology has significant limitations: the traditional construction mode highly depends on land or dry land construction conditions, and even if it needs to be used underwater, a temporary dry land environment needs to be created through island building, cofferdam and other ways, which not only has a long construction period and high cost, but also easily causes damage to the ecological environment of the construction water area.

[0004] Therefore, it is necessary to invent a flexible gabion net underwater hoisting construction equipment and a method thereof to solve the above problems. SUMMARY

[0005] In view of the above problems, the present application provides a flexible gabion net underwater hoisting construction equipment and a method thereof to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a flexible gabion net underwater hoisting construction equipment, comprising:

[0007] The hoist is designed with an open top and an open bottom, the inside of the hoist is provided with a gabion net, and the inside of the gabion net is distributed with a plurality of vertical partitions;

[0008] The two movable plates are symmetrically hinged on the front and rear sides of the bottom of the hoist on the side away from each other;

[0009] The load-bearing beams are horizontally fixedly connected to the bottom of the movable plates, the two ends of the load-bearing beams protrude beyond the two sides of the movable plates, and the ends of the two load-bearing beams in the same direction are connected with a synchronous deflection device;

[0010] The synchronous deflection device comprises a pull rod, a deflection rod and a first reset assembly, the pull rod is slidably installed on the side of the hoist in the vertical direction, the number of the deflection rods is two, the top ends of the two deflection rods are symmetrically hinged to the bottom end of the pull rod, the bottom ends of the two deflection rods are hinged together with the top ends of the two load-bearing beams in the same direction, and the first reset assembly is connected to the top end of the pull rod to reset the pull rod upward after the pull rod moves downward.

[0011] Further, the first reset assembly comprises a special-shaped rod, a limiting rod, a fixed block and a first reset spring, the special-shaped rod is fixedly connected at the top end of the pull rod, and the special-shaped rods are symmetrically distributed about the pull rod, the number of the limiting rods is two, the two limiting rods are fixedly connected at the two ends of the special-shaped rod in a symmetrical and vertical manner, the fixed block is slidingly sleeved on the limiting rod, and the fixed block is fixedly connected with the lifting appliance, the first reset spring is sleeved on the limiting rod, and the two ends of the first reset spring are fixedly connected with the special-shaped rod and the fixed block respectively.

[0012] Further, the lifting appliance top is fixedly connected with a rectangular ring-shaped wing plate, first lifting lugs are fixedly connected at the top of the wing plate near the four corners, secondary steel wires are connected on the first lifting lugs, roller shafts are horizontally rotatably installed on the two sides of the wing plate.

[0013] Further, the top of the two ends of the load-bearing beam is fixedly connected with a second lifting lug, a main steel wire and a traction rope are connected on the second lifting lug.

[0014] Further, the width of the movable plate is equal to half of the width of the lifting appliance, the length of the movable plate is equal to the length of the lifting appliance, a plurality of top blocks are uniformly fixedly connected at the top of the movable plate along the length direction thereof, a sliding plate is horizontally slidingly installed between adjacent two top blocks, strip-shaped through holes are formed between the two sides of the top block, a same connecting rod is fixedly connected between a plurality of sliding plates, the connecting rod is inserted into the through hole, and a second reset assembly is connected to one side of the sliding plate away from the front-rear side symmetry plane of the lifting appliance.

[0015] Further, the second reset assembly comprises a pull rope, a guide roller and a second reset spring, the pull rope is connected to one side of the movable plate away from the front-rear side symmetry plane of the lifting appliance, strip-shaped holes perpendicular to the length direction of the load-bearing beam are formed at positions opposite to the pull rope of the movable plate, the pull rope is inserted into the strip-shaped hole, the guide roller is rotatably installed at the bottom position of the strip-shaped hole, the bottom end of the pull rope passes through the guide roller, and the second reset spring is fixedly connected to one side of the load-bearing beam away from the front-rear side symmetry plane of the lifting appliance, and one end of the second reset spring away from the load-bearing beam is connected with one end of the pull rope away from the movable plate.

[0016] Further, the top of the sliding plate is flush with the top of the top block, and a wear-resistant rubber pad matching in size is fixedly connected to the top of the sliding plate, and anti-slip strips parallel to the length direction of the connecting rod are uniformly distributed on the top of the wear-resistant rubber pad.

[0017] Further, the length of the top block is greater than the length of the sliding plate, and strip-shaped protrusions parallel to the length direction of the top block are uniformly distributed on the top of the top block.

[0018] Further, the U-shaped plate is installed at the position opposite to the second lifting lug on the side of the lifting appliance, a guide wheel is rotatably installed in the inner side of the U-shaped plate, and two sections of main steel wire ropes located on the same side of the lifting appliance are respectively located in the inner sides of the two U-shaped plates and the two sections of main steel wire ropes are respectively located on the sides opposite to the two guide wheels.

[0019] The application further provides a construction method using the underwater hoisting construction equipment of the flexible stone cage net, comprising the following steps:

[0020] Step one, construction preparation: according to the construction design requirements, the volume, partition structure and filler type of each stone cage net are determined, the lifting appliance of appropriate specification is selected, and the size of the partition plate is adjusted according to the width of the stone cage net;

[0021] Step two, base trench excavation: the base trench and the bank slope are excavated jointly by using a dredging ship or a long-arm excavator, after the excavation is completed, the water depth single-beam or multi-beam measurement is carried out to ensure that the base trench elevation and flatness meet the design requirements;

[0022] Step three, water surface positioning mark setting: according to the design drawing, longitudinal and transverse positioning grid lines are set on the water surface, the grid spacing is determined according to the side length of the stone cage net, and the buoy is used as the water surface positioning mark, and the counterweight is arranged at the bottom of the buoy to prevent displacement caused by water flow and wind force;

[0023] Step four, stone cage net land filling: the rectangular frame of the lifting appliance is used as a stable operation platform, the filler is filled into the stone cage net, and the support effect of the partition plate is utilized to avoid deformation and misplacement of the stone cage net during the filling process; after the filler is filled to the designed height, the filling is stopped, the partition plate is slowly pulled out, and the cover is bound and sealed;

[0024] Step five, lifting appliance connection and hoisting preparation stage: first, the main hook of the conventional hoisting equipment is connected with the second lifting lug, the auxiliary hook is connected with the first lifting lug, then two traction ropes are connected at the second lifting lug, a person in charge of traction control is arranged to ensure that the traction ropes are uniformly stressed and the length is adapted to the requirements of the construction site, finally, the hoisting equipment is started, the trial hoisting operation is carried out, and the hoisting preparation is completed after confirming that there is no abnormality;

[0025] Step six, hoisting: first, the hoisting equipment drives the lifting appliance and the stone cage net to slowly rise through the main hook, at this time, the auxiliary steel wire rope remains in a relaxed state and does not bear the main load, during the rising process, the hoisting speed of the main steel wire rope and the traction force of the traction rope are adjusted to realize the preliminary adjustment of the posture of the lifting appliance and ensure that the lifting appliance moves stably above the construction water area;

[0026] Step seven, stone cage net is put: the plane position of the lifting appliance is observed through the buoy set on the water, the lifting appliance is accurately positioned to the designed putting point by adjusting the length of the traction rope and the main steel wire rope, after confirming that the lifting appliance reaches the specified position, the main steel wire rope is slowly loosened, under the joint action of the stone cage net self weight and the water buoyancy, the movable plate deflects to both sides and opens, the stone cage net falls smoothly from the lifting appliance to the specified position under the action of gravity, and the putting is completed; during the putting process, the traction rope is kept in slight stress, so that the lifting appliance is prevented from colliding with the stone cage net due to water flow impact; after the stone cage net is put, the main steel wire rope is tightened, the movable plate is reset and locked, and then the lifting appliance is lifted away from the water surface, and the next round of construction cycle is carried out.

[0027] Technical effects and advantages of the present application:

[0028] 1. The flexible stone cage net underwater hoisting construction method provided by the present application solves the technical problems in the prior art by innovatively designing the lifting appliance and the matching construction process, without creating dry land construction conditions, realizing direct filling, accurate hoisting and putting of the stone cage net underwater, and having the advantages of convenient operation, high stability, high operation efficiency, accurate positioning and good universality, and effectively solving the problems in the prior art.

[0029] 2. By arranging the rectangular frame structure of the lifting appliance and the movable partition plate, stable support is provided for the stone cage net during the filling stage, the deformation of the stone cage net during the filling, lifting and launching processes is effectively constrained, and especially the regular shape of the stone cage net is protected, thereby ensuring the construction quality.

[0030] 3. The double adjustment mechanism of the main steel wire rope lifting and the manual control angle of the traction rope is adopted to realize flexible adjustment of the underwater posture of the lifting appliance, ensure accurate putting of the stone cage net at the specified underwater position, and solve the problem of inaccurate positioning in the traditional construction.

[0031] 4. The frame structure of the lifting appliance forms a stable operation platform, the stone cage net filling does not need to be additionally bound and fixed, the stone filling speed is significantly improved, the construction period is shortened, and the operation efficiency is improved.

[0032] 5. The size of the movable partition plate and the specification of the lifting appliance can be adjusted to adapt to stone cage nets with different volumes, separate structures and fillers, and the lifting appliance is compatible with conventional hoisting equipment and suitable for various underwater protection projects such as inland rivers, coastal areas and reservoirs. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a construction method flowchart of the present application;

[0034] Figure 2 is a whole structure schematic view of the present application;

[0035] Figure 3 is a three-dimensional schematic view of the synchronous deflection device in the present application;

[0036] Figure 4 is a three-dimensional schematic view of the movable plate, the top block and the sliding plate in the present application;

[0037] Figure 5 is a three-dimensional schematic view of the movable plate, the bearing beam and the second reset assembly in the present application;

[0038] Figure 6 is a three-dimensional schematic view of the sliding plate, the connecting rod, the wear-resistant rubber pad and the anti-skid strip in the present application. Figure 5

[0039] Figure 7 is a three-dimensional schematic view of the sliding plate, the connecting rod, the wear-resistant rubber pad and the anti-skid strip in the present application.

[0040] In the figure: 1, lifting appliance; 2, gabion net; 3, partition plate; 4, movable plate; 5, bearing beam; 6, pull rod; 7, deflection rod; 8, special-shaped rod; 9, limiting rod; 10, fixed block; 11, first reset spring; 12, wing plate; 13, first lifting lug; 14, auxiliary steel wire rope; 15, roller shaft; 16, second lifting lug; 17, main steel wire rope; 18, traction rope; 19, top block; 20, sliding plate; 21, through hole; 22, connecting rod; 23, pull rope; 24, guide roller; 25, second reset spring; 26, strip-shaped hole; 27, wear-resistant rubber pad; 28, anti-skid strip; 29, strip-shaped protrusion; 30, U-shaped plate; 31, guide wheel; 32, reinforcing rib; 33, drainage hole. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the present application will be described clearly and completely below in combination with embodiments.

[0042] The present application provides a kind of flexible gabion net underwater hoisting construction equipment as shown in Figures 1 to 7 , including: lifting appliance 1, movable plate 4 and bearing beam 5, the top and bottom of lifting appliance 1 are open design, lifting appliance 1 inner side is provided with gabion net 2, and gabion net 2 inner side is distributed with several vertical partition plates 3;Movable plate 4, the number of movable plate 4 is two, the side of two movable plates 4 apart symmetry is hinged in the front and rear side position of the bottom of lifting appliance 1;Bearing beam 5, horizontally fixedly connected at the bottom of movable plate 4, the two ends of bearing beam 5 are more protruding than the two sides of movable plate 4, and the end of the same direction between two bearing beams 5 is connected with synchronous deflection device;Synchronous deflection device includes pull rod 6, deflection rod 7 and first reset assembly, pull rod 6 is vertically slidably installed on the side of lifting appliance 1, the number of deflection rod 7 is two, the top end of two deflection rods 7 is symmetrically hinged in the bottom end of pull rod 6, the bottom end of two deflection rods 7 is respectively hinged together with the top of the end of the same direction of two bearing beams 5, first reset assembly is connected to the top end of pull rod 6, for moving pull rod 6 upwards after pull rod 6 moves downwards, drive pull rod 6 to reset;

[0043] ​The first reset assembly comprises a special-shaped rod 8, a limiting rod 9, a fixed block 10 and a first reset spring 11, the special-shaped rod 8 is fixedly connected to the top end of the pull rod 6, and the special-shaped rod 8 is symmetrically distributed about the pull rod 6, the number of the limiting rod 9 is two, the two limiting rods 9 are fixedly connected to the two ends of the special-shaped rod 8 in a symmetrical and vertical manner, the fixed block 10 is slidingly sleeved on the limiting rod 9, and the fixed block 10 is fixedly connected to the spreader 1, the first reset spring 11 is sleeved on the limiting rod 9, and the two ends of the first reset spring 11 are fixedly connected to the special-shaped rod 8 and the fixed block 10 respectively;

[0044] The spreader 1 is fixedly connected with a rectangular ring-shaped wing plate 12 at the top, first lifting lugs 13 are fixedly connected to the wing plate 12 at the top near the four corners, secondary steel wires 14 are connected to the first lifting lugs 13, roller shafts 15 are horizontally rotatably installed on the two sides of the wing plate 12, second lifting lugs 16 are fixedly connected to the top of the two ends of the load-bearing beam 5, and main steel wires 17 and traction ropes 18 are connected to the second lifting lugs 16;

[0045] During the hoisting of the gabion net 2, when the gabion net 2 is hoisted to the designated work area, the secondary steel wires 14 can be first retracted to generate a pulling force on the spreader 1, and then the main steel wires 17 are gradually elongated, and as the main steel wires 17 are gradually elongated, the two movable plates 4 can be deflected downward under the pressure of the gabion net 2, but since the lengths of the main steel wires 17 tied on the two load-bearing beams 5 can be different, the deflection amplitudes of the two movable plates 4 can be different, thereby causing the bottom of the gabion net 2 to be inclined due to uneven support during the deflection of the movable plates 4, and thereby causing the deviation of the placement position of the gabion net 2, at this time, by being provided with the synchronous deflection device, when any one movable plate 4 is deflected, the movable plate 4 can pull the pull rod 6 downward through the deflection rod 7 connected thereto, and as the pull rod 6 moves downward, the other deflection rod 7 can be deflected downward under the pushing of the pull rod 6, thereby ensuring that the two movable plates 4 are deflected synchronously to both sides, ensuring that the gabion net 2 falls stably, and avoiding the imbalance problem caused by unilateral deflection;

[0046] During the downward movement of the pull rod 6, the pull rod 6 can drive the two limiting rods 9 to move downward through the special-shaped rod 8, and as the special-shaped rod 8 moves downward, the first reset spring 11 can be gradually compressed, and when the gabion net 2 inside the spreader 1 is completely removed from the spreader 1, as the first reset spring 11 is gradually elongated, the pull rod 6 can pull the two deflection rods 7 to move upward under the upward pushing force of the special-shaped rod 8 on the first reset spring 11, and as the two deflection rods 7 move upward, the two movable plates 4 can be reattached to the bottom of the spreader 1 under the pulling of the two deflection rods 7, thereby automatically preparing for the next filling of the gabion net 2 and the filler, and improving the subsequent work efficiency.

[0047] As Figures 4 to 7As shown, the width of the movable plate 4 is equal to half of the width of the lifting appliance 1, the length of the movable plate 4 is equal to the length of the lifting appliance 1, a plurality of top blocks 19 are uniformly and fixedly connected to the top of the movable plate 4 along the length direction of the movable plate 4, a sliding plate 20 is horizontally and slidingly installed between any two adjacent top blocks 19, a strip-shaped through hole 21 is formed between the two sides of the top block 19, a connecting rod 22 is fixedly connected between the plurality of sliding plates 20, the connecting rod 22 is inserted into the through hole 21, and the second reset assembly is connected to one side of the sliding plate 20 away from the front-rear side symmetry plane of the lifting appliance 1;

[0048] The second reset assembly comprises a pull rope 23, a guide roller 24 and a second reset spring 25, the pull rope 23 is connected to one side of the movable plate 4 away from the front-rear side symmetry plane of the lifting appliance 1, a strip-shaped hole 26 perpendicular to the length direction of the bearing beam 5 is formed at the position opposite to the pull rope 23 of the movable plate 4, the pull rope 23 is inserted into the strip-shaped hole 26, the guide roller 24 is rotatably installed at the bottom position of the strip-shaped hole 26, the bottom end of the pull rope 23 passes through the guide roller 24, and the second reset spring 25 is fixedly connected to one side of the bearing beam 5 away from the front-rear side symmetry plane of the lifting appliance 1, and one end of the second reset spring 25 away from the bearing beam 5 is connected to one end of the pull rope 23 away from the movable plate 4.

[0049] The top of the sliding plate 20 is flush with the top of the top block 19, and a wear-resistant rubber pad 27 matching in size is fixedly connected to the top of the sliding plate 20, the top of the wear-resistant rubber pad 27 is uniformly provided with anti-skid strips 28 parallel to the length direction of the connecting rod 22, the anti-skid strips 28 can cooperate with the wear-resistant rubber pad 27 to further increase the friction between the bottom of the gabion net 2 and the sliding plate 20, so as to facilitate the downward movement of the gabion net 2 and the sliding plate 20 together, the length of the top block 19 is greater than the length of the sliding plate 20, and the top of the top block 19 is uniformly provided with strip-shaped protrusions 29 parallel to the length direction of the top block 19, the strip-shaped protrusions 29 are arranged to reduce the contact area between the bottom of the gabion net 2 and the top block 19, and further reduce the friction between the gabion net 2, the filler and the top block 19;

[0050] During the downward deflection of the movable plate 4, the bottom edge of the gabion net 2 can gradually slide out of the bottom of the lifting appliance 1 under the action of gravity, and during the downward movement of the gabion net 2, the gabion net 2 and the filler inside the gabion net 2 are relatively rough, so that the surface of the movable plate 4 is scratched, and the movable plate 4 is damaged due to wear and tear over a long period of time, at this time, the sliding plate 20 is arranged, when the gabion net 2 is placed inside the lifting appliance 1, since the gabion net 2 itself has a certain toughness, as the filler is loaded into the gabion net 2, the bottom of the gabion net 2 can be slightly deformed and supported by the top block 19 under the pressure of the filler, in addition to being supported by the slightly higher sliding plate 20, when the filler is completed, the gabion net 2 as a whole can be supported by the sliding plate 20 and the top block 19 together;

[0051] When the movable plate 4 is slowly released by the elongated main steel wire rope 17, as the movable plate 4 deflects downward, the middle position of the gabion net 2 bottom gradually hangs in the air, while the front and rear edge positions of the gabion net 2 can be supported by the plurality of sliding plates 20 on the two movable plates 4, at this time, as the deflection angle of the movable plate 4 gradually increases, the bottom of the lifting appliance 1 is gradually opened, at this time, the gabion net 2 can drive the sliding plates 20 on the two movable plates 4 to slide downward along the top surface of the movable plate 4 under the action of gravity, thereby avoiding friction between the bottom of the gabion net 2 and the movable plate 4, and further protecting the movable plate 4, prolonging the service life of the movable plate 4;

[0052] In addition, by providing the sliding plate 20, during the downward sliding of the sliding plate 20, part of the sliding plate 20 can extend further downward with the gabion net 2, and in this process, the sliding plates 20 on the two movable plates 4 can guide the gabion net 2 from the front and rear sides, thereby enabling the gabion net 2 to be more accurately placed at the designated position;

[0053] By providing the second reset assembly, during the downward sliding of the sliding plate 20, the sliding plate 20 can stretch the second reset spring 25 through the pull rope 23, and after the gabion net 2 is placed, as the gabion net 2 is separated from the sliding plate 20, the second reset spring 25 can automatically contract, thereby automatically resetting the sliding plate 20 through the pull rope 23, and further providing convenience for subsequent work.

[0054] As shown in Figure 2 , the U-shaped plate 30 is installed at the position opposite to the second lifting lug 16 on the side surface of the lifting appliance 1, the guide wheel 31 is rotatably installed on the inner side of the U-shaped plate 30, and the two sections of the main steel wire rope 17 located on the same side of the lifting appliance 1 are respectively located on the inner side of the two U-shaped plates 30, and the two sections of the main steel wire rope 17 are respectively located on the side opposite to the two guide wheels 31;

[0055] By providing the guide wheel 31, during the deflection of the movable plate 4 driven by the main steel wire rope 17, the guide wheel 31 can better limit the main steel wire rope 17, avoid the main steel wire rope 17 from shaking randomly, and at the same time, the roller shaft 15 horizontally rotatably installed on the two sides of the wing plate 12 always keeps opposite to the main steel wire rope 17, which can prevent the main steel wire rope 17 from rubbing against the side surface of the lifting appliance 1, reduce the abrasion efficiency of the main steel wire rope 17, prolong the service life of the equipment, and reduce the safety hazards caused by the damage of the steel wire rope.

[0056] As shown in Figures 2 to 6 , the reinforcing rib 32 is sleeved on the outer side of the lifting appliance 1, the lifting appliance 1 adopts a welded frame structure of a square steel plate and a channel steel, the number of the reinforcing ribs 32 is not less than two, and the drainage hole 33 is penetratingly formed on the position close to the bottom of the side surface of the lifting appliance 1, and on the movable plate 4 and the top block 19;

[0057] By setting the drain hole 33, when the lifting device is used to lift the sling 1 out of the water, the water in the sling 1 can be discharged through the drain hole 33, reducing the lifting burden of the lifting device, and the sling 1 adopts a rectangular steel plate, a channel steel welded frame structure, and is matched with a transverse reinforcing rib 32 and a wing plate 12, so that the overall rigidity is strong, the carrying capacity is outstanding, and the deformation of the gabion net 2 during filling, lifting and launching can be effectively constrained.

[0058] The application also provides a construction method using the flexible gabion net 2 underwater lifting construction equipment, comprising the following steps:

[0059] Step one, construction preparation: according to the construction design requirements, the volume (adaptation 1 to 5 m³) of each gabion net 2, the partition structure and the filler type (pebbles or blocks) are determined, the sling 1 of the appropriate specification is selected, and the size of the partition plate 3 is adjusted according to the width of the gabion net 2;

[0060] Step two, base trench excavation: the base trench and the shore slope are excavated jointly by using a dredger or a long-arm excavator, after the excavation is completed, the water depth single-beam or multi-beam measurement is carried out, and it is ensured that the base trench elevation and flatness meet the design requirements;

[0061] Step three, water surface positioning mark setting: according to the design drawing, longitudinal and transverse positioning grid lines are set on the water surface, the grid spacing is determined according to the side length of the gabion net 2, and the buoy is used as the water surface positioning mark, and the counterweight is arranged at the bottom of the buoy to prevent displacement due to water flow and wind force;

[0062] Step four, land filling of the gabion net 2: taking the rectangular frame of the sling 1 as a stable operation platform, the filler is filled into the gabion net 2, and the support of the partition plate 3 is used to avoid deformation and misplacement of the gabion net 2 during the filling process; after the filler is filled to the designed height, the filling is stopped, the partition plate 3 is slowly pulled out, and the sealing cover is bound;

[0063] Step five, sling 1 connection and lifting preparation stage: first, the main hook of the conventional lifting device is connected with the second lifting lug 16, the auxiliary hook is connected with the first lifting lug 13, then two traction ropes 18 are connected at the second lifting lug 16, a person in charge of traction control is arranged, it is ensured that the traction rope 18 is uniformly stressed and the length is adapted to the construction site requirements, finally the lifting device is started, the trial lifting operation is carried out, and the lifting preparation is completed after confirming that there is no abnormality;

[0064] Step six, lifting: first, the lifting device drives the sling 1 and the gabion net 2 to slowly rise through the main hook, at this time the auxiliary steel wire rope 14 remains in a relaxed state and does not bear the main load, during the rising process, the lifting speed of the main steel wire rope 17 and the traction force of the traction rope 18 are adjusted to realize the preliminary adjustment of the posture of the sling 1 and ensure that the sling 1 moves stably to above the construction water area;

[0065] Step seven, stone cage net 2 is put: the plane position of the hoist 1 is observed through the buoy set on the water, the hoist 1 is accurately positioned to the design point of putting by the length adjustment of the traction rope 18 and the main steel wire rope 17, after confirming that the hoist 1 reaches the specified position, the main steel wire rope 17 is slowly loosened, under the joint action of the stone cage net 2 self weight and the underwater buoyancy, the movable plate 4 deflects to both sides and opens, the stone cage net 2 falls to the underwater specified position from the hoist 1 under the action of gravity, and the putting is completed; during the putting process, the traction rope 18 is kept slightly stressed, so that the hoist 1 is prevented from colliding with the stone cage net 2 due to water flow impact; after the stone cage net 2 is put, the main steel wire rope 17 is tightened, the movable plate 4 is reset and locked, then the hoist 1 is lifted away from the water surface, and the next round of construction cycle is carried out.

[0066] The above examples are only used to illustrate the technical solutions of the present application, rather than limit them.

Claims

1. A flexible gabion net underwater hoisting construction equipment, characterized in that, Include: The spreader (1), the top and bottom of the spreader (1) are open design, the inside of the spreader (1) is provided with gabion net (2), and the inside of the gabion net (2) is distributed with several vertical partitions (3); The movable plate (4) is two, and the two movable plates (4) are symmetrically hinged on the front and rear sides of the bottom of the spreader (1) on the side away from each other; The bearing beam (5) is horizontally fixedly connected to the bottom of the movable plate (4), both ends of the bearing beam (5) protrude from both sides of the movable plate (4), and both ends of the bearing beam (5) in the same direction are connected with synchronous deflection devices; The synchronous deflection device includes a pull rod (6), a deflection rod (7) and a first reset assembly, the pull rod (6) is vertically slidably installed on the side of the spreader (1), the top ends of the two deflection rods (7) are symmetrically hinged to the bottom end of the pull rod (6), the bottom ends of the two deflection rods (7) are hinged together with the top of the one end of the two bearing beams (5) in the same direction, and the first reset assembly is connected to the top end of the pull rod (6), used for driving the pull rod (6) to reset upward after the pull rod (6) moves downward; The first reset assembly includes a special-shaped rod (8), a limiting rod (9), a fixed block (10) and a first reset spring (11), the special-shaped rod (8) is fixedly connected to the top end of the pull rod (6), and the special-shaped rod (8) is symmetrically distributed about the pull rod (6), the two limiting rods (9) are symmetrically and vertically fixedly connected to the two ends of the special-shaped rod (8), the fixed block (10) is slidably sleeved on the limiting rod (9), and the fixed block (10) is fixedly connected with the spreader (1), the first reset spring (11) is sleeved on the limiting rod (9), and the two ends of the first reset spring (11) are fixedly connected with the special-shaped rod (8) and the fixed block (10) respectively; The top of the spreader (1) is fixedly connected with a rectangular ring-shaped wing plate (12), the top of the wing plate (12) is fixedly connected with a first lifting lug (13) near four corners, the first lifting lug (13) is connected with a secondary steel wire rope (14), and the two sides of the wing plate (12) are horizontally rotatably installed with roller shafts (15); The top of the bearing beam (5) is fixedly connected with a second lifting lug (16), the second lifting lug (16) is connected with a main steel wire rope (17) and a traction rope (18); The width of the movable plate (4) is equal to half of the width of the lifting appliance (1), the length of the movable plate (4) is equal to the length of the lifting appliance (1), a plurality of top blocks (19) are uniformly and fixedly connected to the top of the movable plate (4) along the length direction of the movable plate (4), a sliding plate (20) is horizontally and slidably arranged between two adjacent top blocks (19), a strip-shaped through hole (21) is formed between the two sides of the top block (19), a connecting rod (22) is fixedly connected between a plurality of sliding plates (20), the connecting rod (22) is inserted into the through hole (21), and a second reset assembly is connected to one side of the sliding plate (20) away from the front and rear side symmetry plane of the lifting appliance (1). The second reset assembly comprises a pull rope (23), a guide roller (24) and a second reset spring (25), the pull rope (23) is connected to one side of the movable plate (4) away from the front and rear side symmetry plane of the lifting appliance (1), a strip-shaped hole (26) perpendicular to the length direction of the bearing beam (5) is formed in the position opposite to the movable plate (4) of the pull rope (23), the pull rope (23) is inserted into the strip-shaped hole (26), the guide roller (24) is rotatably arranged at the bottom position of the strip-shaped hole (26), the bottom end of the pull rope (23) passes through the guide roller (24), and the second reset spring (25) is fixedly connected to one side of the bearing beam (5) away from the front and rear side symmetry plane of the lifting appliance (1), and one end of the second reset spring (25) away from the bearing beam (5) is connected to one end of the pull rope (23) away from the movable plate (4).

2. The flexible gabion net underwater installation construction equipment according to claim 1, characterized in that: The top of the sliding plate (20) is flush with the top of the top block (19), and a wear-resistant rubber pad (27) matching in size is fixedly connected to the top of the sliding plate (20), and the top of the wear-resistant rubber pad (27) is uniformly provided with anti-skid strips (28) parallel to the length direction of the connecting rod (22).

3. The flexible gabion net underwater installation apparatus according to claim 2, characterized in that: The length of the top block (19) is greater than the length of the sliding plate (20), and the top of the top block (19) is uniformly provided with strip-shaped protrusions (29) parallel to the length direction of the top block (19).

4. The flexible gabion net underwater installation apparatus according to claim 3, characterized in that: The U-shaped plate (30) is arranged on the side of the lifting appliance (1) opposite to the second lifting lug (16), the guide wheel (31) is rotatably arranged in the inner side of the U-shaped plate (30), and the two sections of main steel wire ropes (17) on the same side of the lifting appliance (1) are arranged in the inner sides of the two U-shaped plates (30) respectively, and the two sections of main steel wire ropes (17) are arranged on the sides opposite to the two guide wheels (31) respectively.

5. A method of construction using the flexible gabion net underwater installation apparatus as claimed in claim 4, characterised in that: The method comprises the following steps: Step one, construction preparation: according to the construction design requirements, the volume, partition structure and filler type of each gabion net (2) are determined, the lifting appliance (1) of appropriate specification is selected, and the size of the partition plate (3) is adjusted according to the width of the gabion net (2); Step two, base trench excavation: the base trench and the bank slope are excavated by using a dredger or a long-arm excavator, after the excavation is completed, the water depth single-beam or multi-beam measurement is carried out, and it is ensured that the base trench elevation and flatness meet the design requirements; Step three, water surface positioning mark setting: according to the design drawing, longitudinal and transverse positioning grid lines are set on the water surface, the grid spacing is determined according to the side length of the gabion net (2), and a float is used as the water surface positioning mark, and a counterweight is arranged at the bottom of the float to prevent displacement caused by water flow and wind force; Step four, onshore filling of gabion net (2): using the rectangular frame of the lifting appliance (1) as a stable work platform, fill the fillers into the gabion net (2), and use the supporting effect of the partition (3) to avoid deformation and misplacement of the gabion net (2) during the filling process; stop filling when the fillers are filled to the designed height, slowly pull out the partition (3), and bind and seal the cover; Step five, lifting appliance (1) connection and lifting preparation stage: first connect the main hook of the conventional lifting equipment with the second lifting lug (16), and connect the secondary hook with the first lifting lug (13), then connect two traction ropes (18) at the second lifting lug (16), arrange a person in charge of traction control, ensure that the traction rope (18) is evenly stressed and the length is suitable for the construction site requirements, finally start the lifting equipment, perform trial lifting operation, and complete the lifting preparation after confirming that there is no abnormality; Step six, lifting: first, the lifting equipment drives the lifting appliance (1) and the gabion net (2) to slowly rise through the main hook, at this time the secondary steel wire rope (14) remains in a relaxed state and does not bear the main load, during the rising process, adjust the lifting speed of the main steel wire rope (17) and the traction force of the traction rope (18) to realize the preliminary adjustment of the posture of the lifting appliance (1) and ensure that the lifting appliance (1) moves stably above the construction water area; Step seven, gabion net (2) placement: the planar position of the lifting appliance (1) is observed through the buoy set on the water, and the lifting appliance (1) is accurately positioned to the designed placement point by adjusting the length of the traction rope (18) and the main steel wire rope (17), after confirming that the lifting appliance (1) reaches the specified position, slowly loosen the main steel wire rope (17), under the combined action of the self-weight of the gabion net (2) and the underwater buoyancy, the movable plate (4) deflects and opens to both sides, the gabion net (2) falls stably from the lifting appliance (1) to the specified position under the action of gravity, and the placement is completed; during the placement process, keep the traction rope (18) slightly stressed to avoid collision between the lifting appliance (1) and the gabion net (2) due to water flow impact; after the gabion net (2) is placed, the main steel wire rope (17) is tightened to reset and lock the movable plate (4), then the lifting appliance (1) is lifted away from the water surface for the next round of construction cycle.

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