A kind of cross-river cable lifting equipment and lifting construction method

Abstract

The present invention discloses a cross-river cable hoisting device and a hoisting construction method. A double-support single-cable lifting cableway is set up on both sides of the river bank. The cableway span is more than 500m and the height difference is more than 200m. The following steps are included: 1) clearing the construction channels on both sides of the river bank; 2) burying the anchors; 3) installing the gantry; 4) setting up the load-bearing cables, including the steps of setting up the load-bearing main rope and the main load-bearing rope; 5) installing the traction system; 6) installing the lifting hopper. The construction method can realize the normal installation and construction operation of the cable on the river with a large span and a large height difference, shorten the construction period, and effectively ensure the quality of the project construction; ensure the safety of the cable hoisting equipment during the installation process, and at the same time ensure the reliability of the cable hoisting equipment during the operation process. It can be widely used in the construction of large-span and large-height-difference cable hoisting equipment under the condition of small working space and lack of construction conditions.

Description

Technical Field

[0001] The invention belongs to the technical field of hydropower construction, and in particular relates to a river-crossing cable lifting device and a lifting construction method. Background Art

[0002] The key project of a hydropower project consists of a river-blocking dam, flood discharge structures, and a water diversion and power generation system. The flood discharge project water structures include cave-type spillways, deep-hole spillways, shaft spillways rebuilt from diversion tunnels in the late construction period, and reservoir emptying tunnels improved from diversion tunnels in the mid-construction period. Among them, cave-type spillways, deep-hole spillways, and emptying tunnels are arranged on the right bank of the river, and shaft spillways are arranged on the left bank.

[0003] According to the construction design plan, the construction road and its branches at the exit of the tunnel-type flood spillway need to cross a cliff with a slope of nearly 90 degrees, and the roadbed cannot be formed. At the same time, the road below is the traffic bottleneck on both sides of the river. The construction safety risk is extremely high and the conditions for construction are not met. The optimized construction road and its branches at the exit of the tunnel-type flood spillway are located in the middle of the completed 900m rough road to the steep slope spillway. Since the entire slope at this location is well developed along the slope joints, the cutting caused by excavation may cause slope traction damage, which is likely to cause permanent damage to vegetation, soil erosion, and slope collapse, resulting in the lack of construction access for the excavation and support of the tunnel face slope. At the same time, since the tunnel body is undergoing mid-level excavation construction, there is no effective access to the construction site for slope construction, and there are almost no transportation roads available for the right bank anchor point. The transportation of engineering materials and equipment is very difficult, which has brought great problems to the construction of the project. Summary of the invention

[0004] The purpose of the present invention is to provide a river-crossing cable lifting device and a lifting construction method to solve the problem that the cable is difficult to construct normally under the conditions of large span, large height difference and small construction space.

[0005] The present invention is achieved through the following technical solutions:

[0006] A cable hoisting construction method across a river, wherein a double-support point single-cable lifting cableway is set up on both sides of the river bank, the cableway span is more than 500m, and the height difference is more than 200m, comprising the following steps:

[0007] 1) Clear the construction channels on both sides of the river bank;

[0008] 2) Bury ground anchors: construct ground anchors on both sides of the river bank. The anchor piles are made of threaded steel bars of a certain length and arranged in a plum blossom shape. The spacing between the threaded steel bars is 20-30cm. The depth of the anchor piles buried in the rock layer is not less than 9m. Stirrups and anchor piles are welded to form a cylindrical long anchor rod group. With the anchor piles as the center, cast reinforced concrete anchor piers of a certain specification to form upper and lower anchor points on both sides of the river bank.

[0009] 3) Install the gantry: Install the gantry on both sides of the river bank, set up a concrete support foundation at the location where the gantry is installed, assemble the gantry on site and install it on the concrete support foundation, and set fixed cables at the four corners of the gantry to connect to the concrete support foundation;

[0010] 4) Erection of load-bearing cables, including the steps of erection of main load-bearing ropes and main load-bearing ropes;

[0011] The steps of erecting the load-bearing main rope include: fixing a certain pulley on the steel wire rope at the lower anchor point; installing a winch at the lower anchor point and anchoring it with a steel anchor rod; the load-bearing main rope passes through the steel wire rope anchor rod and the steel anchor rod at the upper anchor point and is fixed by a rope clamp, passes through the steel wire rope anchor rod and the steel anchor rod at the lower anchor point and is fixed by a rope clamp, and a movable pulley capable of moving up and down on the load-bearing main rope is installed on the load-bearing main rope, the steel wire rope on the winch is used as a traction rope, and after the traction rope passes around the fixed pulley, it is fixedly connected to the movable pulley on the load-bearing main rope;

[0012] The main load-bearing rope extradition and installation is assisted by drones. The loop rope is installed first, and then the main load-bearing rope is extradited and installed, and the process is carried out step by step.

[0013] 5) Install the traction system;

[0014] 6) Install the lifting hopper.

[0015] As a further improvement of the above technical solution, the construction steps of burying the anchor in step 2) include:

[0016] After the anchor hole is drilled, insert the anchor to a depth of no less than 9m, pour cement mortar into the anchor hole, and after the cement mortar reaches the design strength, weld the anchor in series with annular stirrups to form an anchor pile. Before pouring concrete, bury the same type of anchor cable as the load-bearing cable at the bottom of the foundation, and the exposed part of the anchor cable is used to connect with the load-bearing cable;

[0017] Threaded steel bars are implanted into the rock layer 1.5-2m around the anchor pier contour with a spacing of 30-50cm to form a 2.5m×2.5m×2m anchor pier. Earrings are buried in the anchor pier at a buried angle and position that ensures that the angle between the force direction and the ground is no more than 25°.

[0018] As a further improvement of the above technical solution, the steps of installing the main load-bearing ropes include:

[0019] Use drones to release aircraft lines, and then use the aircraft lines to extradite auxiliary traction ropes. During the extradition of the auxiliary traction ropes, the lines are tightened manually;

[0020] After the auxiliary traction rope is transferred, the auxiliary traction rope is used to transfer the main traction rope and the circulating rope in turn, and finally the circulating rope is used to transfer the main load-bearing rope. In this step, a winch is used to tighten the line.

[0021] As a further improvement of the above technical solution, the installation of the traction system in step 5) includes the following steps:

[0022] After the traction machine to be installed is adjusted into place, sleepers are placed under the traction machine, and the machine is leveled. The four corners of the frame are fixed to the ground anchor with steel wire rope sleeves. The position of the traction machine is adjusted with a rope tightener. The angle between the anchored steel wire rope sleeve and the center line of the frame is not greater than 30°.

[0023] The traction rope of the traction machine is rolled into the drum, and its introduction direction is perpendicular to the drum axis when rolled into the drum, so that the traction rope is wound onto the traction machine drum in sequence.

[0024] As a further improvement of the above technical solution, in step 6), the lifting hopper is disassembled according to the installation components, and then installed one by one on the main load-bearing rope using lifting equipment.

[0025] As a further improvement of the above technical solution, after the installation of the lifting hopper is completed, the cable lifting equipment is debugged. Before debugging, the traction rope led out from the winch is passed through the steering pulley and then connected to the counterweight iron suspended under the walking pulley. The winch is reeled back, and the counterweight iron leads the end of the rear traction rope to the lower anchor point under the action of gravity and connects it to the lifting hopper or the lifting moving pulley group.

[0026] As a further improvement of the above technical solution, in the cable lifting equipment, the circulating rope is arranged above the main load-bearing rope, with a spacing of not less than 1m; the main traction rope is arranged below the main load-bearing rope, with a spacing of not less than 0.5m; the lifting rope is located below the downward main traction rope, with a spacing of not less than 0.8m.

[0027] On the other hand, the present invention also provides a cable hoisting device across a river, a double-support point single-cable lifting cableway erected on both sides of the river bank, the cableway having a span of not less than 500m and a height difference of not less than 200m;

[0028] It includes a lower anchor pier, a lower gantry, an upper gantry and an upper anchor pier which are respectively arranged on both sides of the river bank in sequence. A winch is arranged at the position of the lower anchor pier, a main load-bearing rope is arranged between the lower anchor pier and the upper anchor pier, the main load-bearing ropes are respectively erected on the lower gantry and the upper gantry, a lifting hopper is arranged on the main load-bearing rope, the lifting hopper is rollingly connected to the main load-bearing rope through a lifting moving pulley group, a circulating rope is arranged above the main load-bearing rope, and a main traction rope is arranged below the main load-bearing rope, the circulating rope and the main traction rope are respectively connected to the winch and the lifting hopper or the lifting moving pulley group.

[0029] As a further improvement of the above technical solution, the distance between the circulating rope and the main load-bearing rope is not less than 1m, and the distance between the main traction rope and the main load-bearing rope is not less than 0.5m.

[0030] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0031] The use of this construction method can achieve normal cable erection and construction operations on rivers with large spans and large height differences, with a short construction period and effective guarantee of project construction quality; by optimizing the setting of ground anchors and the erection steps of load-bearing cables during the construction process, the safety of the cable lifting equipment during the erection process is guaranteed, while the reliability of the cable lifting equipment during operation is guaranteed. This method can be widely used in the construction of large-span and large-height-difference cable lifting equipment in situations where the working space is small and construction conditions are not available. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a structural schematic diagram of the river-crossing cable lifting equipment of the present invention in the construction state.

[0034] Figure 2 It is a front view of the anchor pier construction arrangement structure in the cross-river cable lifting construction method of the present invention.

[0035] Figure 3 It is a top view of the anchor pier construction arrangement structure in the cross-river cable lifting construction method of the present invention.

[0036] Figure 4 The present invention is a schematic diagram of the structure of the gantry in the cross-river cable lifting equipment.

[0037] Among them: 1. Lower anchor pier, 2. Lower gantry, 3. Winch, 4. Upper anchor pier, 5. Upper gantry, 6. Main load-bearing rope, 7. Circulating rope, 8. Main traction rope, 9. Lifting rope. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0039] Double-supported single-cable lifting unidirectional aerial cableways are set up on both sides of the river bank. The installation of the cableway is mainly used to solve the problem of no material transportation channel due to the excavation of the slope above the tunnel face during the project construction. According to the span of the river bank, the main load-bearing rope of the cableway is 560m, and the height difference between the upper and lower parts is 210m. The designed carrying capacity is not more than 5 tons, the operating speed is not more than 0.5m / s, the wind resistance level is not less than level 6, and the safety level coefficient is 5.0.

[0040] Conduct field surveys and comparisons on the proposed installation locations, and select them based on the principle of minimum span of the aerial cableway, no obvious protrusions in the middle, and flat terrain at both ends. After the installation location is determined, use a total station to accurately measure its cross-section.

[0041] The construction process of cross-river cable hoisting includes: clearing the channel - burying the ground anchor - installing the gantry - erecting the load-bearing cables - installing the traction system - installing the lifting hopper (installing the hoisting moving pulley group) - system debugging - trial lifting.

[0042] The specific steps of the cross-river cable hoisting construction are as follows:

[0043] 1) Clear the construction channels on both sides of the river bank;

[0044] Clear away any ground obstacles that may affect the installation or transportation of the aerial ropeway along the route of the ropeway, and level the ground at the material yard on both sides and the gantry installation location.

[0045] 2) Bury the anchor;

[0046] The maximum load of the cableway operation is 107.85kN. To ensure the safety of the cableway during operation, the anchor point is determined by 5 times the maximum load. Figure 2 and 3 , the anchor point construction plan and parameters are as follows:

[0047] Anchor pile construction: The anchor piles are made of 11m long, φ32 threaded steel bars. The anchor piles are injected into the rock layer at a depth of 9m. The threaded steel bars are arranged in a plum blossom shape with a spacing of 20cm between them. φ18 threaded steel bars are used as stirrups and welded with the anchor pile reinforcement to form a cylindrical long anchor rod group with a diameter of 400mm.

[0048] Anchor pier construction: With the anchor pile as the center, a reinforced concrete anchor pier of 2.5m×2.5m×2m is cast. When casting the anchor pier, 3.5m long and φ25 threaded steel bars are used around it, embedded 1.5m into the rock layer, and the spacing between them is set to 50cm to further increase the structural strength of the anchor pier; the longitudinal main reinforcement is φ25 threaded steel bar, the transverse connecting reinforcement is φ16 threaded steel bar, and the stirrups are φ14 threaded steel bar, which are tied with the embedded reinforcement and vertical reinforcement around the anchor pier to form a cage shape, and concrete is cast into a pier shape.

[0049] During the construction process, first drill holes at the location of the reinforcement, insert anchor rods after cleaning, and pour cement mortar into the holes. After the cement mortar reaches the strength, each group of 19 φ32 anchor rods are welded in series with φ18 annular stirrups to form the main load-bearing rope anchor piles. Before pouring concrete, an anchor cable of the same model as the main load-bearing rope is buried at the bottom of the foundation. The anchor cable length is 5m, and the exposed length of the anchor cable is 3m. The exposed part is used to connect with the main load-bearing rope through a buckle; after completion, the anchor pier is constructed according to the anchor pier construction parameters to form a 2.5m×2.5m×2m anchor pier steel cage, and 8-ton earrings are buried at the same time. The earrings are buried in a direction so that the angle between the force direction and the ground is not greater than 25°; after all the steel bars are installed, the template is installed, and a one-time concrete pouring method is adopted to ensure the integrity of the anchor pier.

[0050] 3) Install the gantry;

[0051] A φ312mm×8mm steel pipe is used as the gantry, and a 1m×1m×0.5m C30 concrete support foundation is set on the ground at the gantry installation position to prevent uneven sinking. A φ16 fixed cable is set at each of the four corners of the gantry along the 45° direction to fix the gantry to prevent side sliding; the bending degree of the gantry after installation should not exceed 1%, and the main load-bearing cable is installed on the gantry so that it only bears axial pressure under normal conditions. It is prohibited to apply additional load to the middle of the gantry.

[0052] 4) Erection of load-bearing cables;

[0053] The main load-bearing rope adopts 6*37-φ44-1770 natural fiber core steel wire rope, which weighs 3.8kg per meter. The whole main load-bearing rope is 560m long and weighs 2128kg in total. It is impossible to complete the extradition and installation by manpower. It is divided into two steps: erecting the load-bearing main rope and the extradition and installation of the main load-bearing rope, as follows:

[0054] The construction process of erecting the load-bearing main rope is:

[0055] a) Fix a certain pulley on the wire rope at the lower anchor point;

[0056] b) Install the winch at the lower anchor point and anchor it with steel bar anchor rods;

[0057] c) The load-bearing main rope passes through the wire rope anchor rod and the steel bar anchor rod at the upper anchor point and is fixed by a rope clamp. It passes through the wire rope anchor rod and the steel bar anchor rod at the lower anchor point and is fixed by a rope clamp. A movable pulley that can move up and down on the load-bearing main rope is installed on the load-bearing main rope.

[0058] d) Use the steel wire rope on the winch as the traction rope, pass it around the fixed pulley, and then firmly connect it to the movable pulley on the load-bearing main rope.

[0059] The construction work of the main load-bearing rope transfer and erection includes:

[0060] a) Use a drone to release the aircraft line, and then use the aircraft line to extradite the φ3.5mm auxiliary traction rope. During the extradition of the traction rope, the line is tightened manually;

[0061] b) After the auxiliary traction rope is transferred, the φ6.5mm main traction rope and φ16mm circulating rope are transferred in turn, and finally the φ16mm circulating rope is used to transfer the φ44mm main load-bearing rope; it is carried out in a step-by-step upward manner. In this step, a winch is used to tighten the line to ensure safety and save manpower.

[0062] 5) Install the traction system;

[0063] After the traction machine to be installed is adjusted into place, place sleepers under the traction machine and make horizontal corrections. Use φ16mm steel wire rope sleeves to fix the four corners of the frame to the ground anchors. Use a rope tightener to adjust the position of the traction machine. The angle between the anchor steel wire rope sleeve and the center line of the frame should not exceed 30°.

[0064] When the traction rope of the traction machine is rolled into the drum, its introduction direction should be perpendicular to the drum axis so that the wire rope can be wound on the traction machine drum in sequence.

[0065] After installation, start the engine and conduct a no-load test for 30 minutes, then operate the clutch to drive the reel to rotate.

[0066] 6) Install the lifting hopper;

[0067] The lifting hopper is disassembled according to the installation parts, and then hoisted one by one by an excavator and installed on the main load-bearing rope. After the installation is completed, it is temporarily fixed.

[0068] After the installation of the lifting hopper is completed, the cable lifting equipment is debugged. Before debugging, the traction rope led out from the winch is passed through the steering pulley, and then connected to the counterweight iron suspended under the walking pulley. The winch is reeled back, and the counterweight iron leads the end of the rear traction rope to the lower anchor point under the action of gravity, and it is stably connected to the lifting hopper or the lifting moving pulley group, and then the operation is debugged.

[0069] The total construction period for the cross-river cable hoisting project is approximately 37 days, including 20 days for foundation construction (including the time for the concrete to reach strength), 3 days for gantry installation, 7 days for cableway erection, and 7 days for cableway commissioning.

[0070] On the other hand, refer to Figure 1The cross-river cable lifting equipment includes a lower anchor 1, a lower gantry 2, an upper gantry 5 and an upper anchor pier 4 which are respectively arranged on both sides of the river bank in sequence. A winch 3 is arranged at the position of the lower anchor pier 1, and a main load-bearing rope 6 is arranged between the lower anchor pier 1 and the upper anchor pier 4. The main load-bearing rope 6 is respectively erected on the lower gantry 2 and the upper gantry 5. A lifting hopper is arranged on the main load-bearing rope 6, and the lifting hopper is rollingly connected to the main load-bearing rope 6 through a lifting moving pulley group. A circulating rope 9 is arranged above the main load-bearing rope 6, and a main traction rope 8 is arranged below the main load-bearing rope 6. The circulating rope 7 and the main traction rope 8 are respectively connected to the winch and the lifting hopper or the lifting moving pulley group.

[0071] Among them, Figure 4 The upper gantry 5 and the lower gantry 2 use double-column single-row gantry, where the columns and upper crossbeams are made of φ312mm×8mm steel pipes, and φ200mm×4mm steel pipes are used as connecting beams for reinforcement. The spacing between connecting beams is 3-3.8m. The height of the upper gantry is set to 10312mm, and the height of the lower gantry is 6312mm. In order to resist the force of wind level 6 and the operation of the cableway, four φ16 steel wire ropes are set at the four corners of the upper and lower gantry for tightening and fixing.

[0072] Reference Figure 1 The cross-river cable hoisting equipment has four steel ropes in total during operation, of which the main load-bearing rope 6 is a static rope, and the other three are moving ropes, namely the circulating rope 7 set above the main load-bearing rope, the main traction rope 8 set below the main load-bearing rope, and the hoisting rope 9 set below the downward main traction rope. To prevent entanglement, the spacing between the circulating rope and the main load-bearing rope is set to 1m, the spacing between the main traction rope and the main load-bearing rope is set to 0.5m, and the spacing between the hoisting rope and the downward traction rope is 0.8m.

[0073] In order to accurately control the up and down movement and the lifting and lowering of the hoisted objects, the three moving ropes are speed-controlled through the gearbox and the winch drum. During the operation of the cableway, the three moving ropes exert corresponding control force on the hoisting operation rather than following freely. Therefore, the three moving ropes are always in a taut state during the entire cableway operation.

[0074] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship commonly placed when the product of the invention is used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0075] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0076] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A method for lifting a cable across a river, characterized in that: A double-support single-cable lifting cableway is set up on both sides of the river bank, with a cableway span of more than 500m and a height difference of more than 200m, including the following steps: 1) Clear the construction channels on both sides of the river bank; 2) Bury ground anchors: construct ground anchors on both sides of the river bank. The anchor piles are made of threaded steel bars of a certain length and arranged in a plum blossom shape. The spacing between the threaded steel bars is 20-30cm. The depth of the anchor piles buried in the rock layer is not less than 9m. Stirrups and anchor piles are welded to form a cylindrical long anchor rod group. With the anchor piles as the center, cast reinforced concrete anchor piers of a certain specification to form upper and lower anchor points on both sides of the river bank. 3) Install the gantry: Install the gantry on both sides of the river bank, set up a concrete support foundation at the location where the gantry is installed, assemble the gantry on site and install it on the concrete support foundation, and set fixed cables at the four corners of the gantry to connect to the concrete support foundation; 4) Erection of load-bearing cables, including the steps of erection of main load-bearing ropes and main load-bearing ropes; The steps of erecting the load-bearing main rope include: fixing a certain pulley on the steel wire rope at the lower anchor point; installing a winch at the lower anchor point and anchoring it with a steel anchor rod; the load-bearing main rope passes through the steel wire rope anchor rod and the steel anchor rod at the upper anchor point and is fixed by a rope clamp, passes through the steel wire rope anchor rod and the steel anchor rod at the lower anchor point and is fixed by a rope clamp, and a movable pulley capable of moving up and down on the load-bearing main rope is installed on the load-bearing main rope, the steel wire rope on the winch is used as a traction rope, and after the traction rope passes around the fixed pulley, it is fixedly connected to the movable pulley on the load-bearing main rope; The main load-bearing rope extradition and installation is assisted by drones. The loop rope is installed first, and then the main load-bearing rope is extradited and installed, and the process is carried out step by step. 5) Install the traction system; 6) Install the lifting hopper.

2. The cross-river cable hoisting construction method according to claim 1 is characterized in that: The construction steps for burying the anchor in step 2) include: After the anchor hole is drilled, insert the anchor to a depth of no less than 9m, pour cement mortar into the anchor hole, and after the cement mortar reaches the design strength, weld the anchor in series with annular stirrups to form an anchor pile. Before pouring concrete, bury the same type of anchor cable as the load-bearing cable at the bottom of the foundation, and the exposed part of the anchor cable is used to connect with the load-bearing cable; Threaded steel bars are implanted into the rock layer 1.5-2m around the anchor pier contour with a spacing of 30-50cm to form a 2.5m×2.5m×2m anchor pier. Earrings are buried in the anchor pier at a buried angle and position that ensures that the angle between the force direction and the ground is no more than 25°.

3. The cross-river cable hoisting construction method according to claim 1 is characterized in that: The steps of installing the main load-bearing ropes include: Use drones to release aircraft lines, and then use the aircraft lines to extradite auxiliary traction ropes. During the extradition of the auxiliary traction ropes, the lines are tightened manually; After the auxiliary traction rope is transferred, the auxiliary traction rope is used to transfer the main traction rope and the circulating rope in turn, and finally the circulating rope is used to transfer the main load-bearing rope. In this step, a winch is used to tighten the line.

4. The cross-river cable hoisting construction method according to claim 1 is characterized in that: The installation of the traction system in step 5) includes the following steps: After the traction machine to be installed is adjusted into place, sleepers are placed under the traction machine, and the machine is leveled. The four corners of the frame are fixed to the ground anchor with steel wire rope sleeves. The position of the traction machine is adjusted with a rope tightener. The angle between the anchored steel wire rope sleeve and the center line of the frame is not greater than 30°. The traction rope of the traction machine is rolled into the drum, and its introduction direction is perpendicular to the drum axis when rolled into the drum, so that the traction rope is wound onto the traction machine drum in sequence.

5. The cross-river cable hoisting construction method according to claim 1 is characterized in that: In step 6), the lifting hopper is disassembled according to the installation components, and then installed one by one on the main load-bearing rope using lifting equipment.

6. The method for lifting a river-crossing cable according to claim 1, characterized in that: After the installation of the lifting hopper is completed, the cable lifting equipment is debugged. Before debugging, the traction rope led out from the winch will pass through the steering pulley, and then connected to the counterweight iron suspended under the walking pulley. The winch is reeled back, and the counterweight iron leads the end of the rear traction rope to the lower anchor point under the action of gravity, and connects it to the lifting hopper or the lifting moving pulley group.

7. The cross-river cable hoisting construction method according to claim 1 is characterized in that: In the cable hoisting equipment, the circulating rope is set above the main load-bearing rope, with a spacing of not less than 1m; the main traction rope is set below the main load-bearing rope, with a spacing of not less than 0.5m; The lifting rope is located below the downward main traction rope, with a spacing of not less than 0.8m.

8. A cable hoisting device across a river, characterized in that: A double-supported single-cable lifting ropeway erected on both sides of the river bank, the ropeway has a span of not less than 500m and a height difference of not less than 200m; It includes a lower anchor pier, a lower gantry, an upper gantry and an upper anchor pier which are respectively arranged on both sides of the river bank in sequence. A winch is arranged at the position of the lower anchor pier, a main load-bearing rope is arranged between the lower anchor pier and the upper anchor pier, the main load-bearing ropes are respectively erected on the lower gantry and the upper gantry, a lifting hopper is arranged on the main load-bearing rope, the lifting hopper is rollingly connected to the main load-bearing rope through a lifting moving pulley group, a circulating rope is arranged above the main load-bearing rope, and a main traction rope is arranged below the main load-bearing rope, the circulating rope and the main traction rope are respectively connected to the winch and the lifting hopper or the lifting moving pulley group.

9. The cross-river cable lifting equipment according to claim 8, characterized in that: The distance between the circulating rope and the main load-bearing rope is not less than 1m, and the distance between the main traction rope and the main load-bearing rope is not less than 0.5m.

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