A method for assembling the Twisted King-shaped blocks for dam construction in mountainous rivers.

By combining the design of the flatbed truck and track system with the traction system, the efficient and safe assembly of the kingpin blocks was achieved, solving the problems of low efficiency and high safety risks in dam construction in mountainous rivers, and realizing efficient construction progress and cost control.

CN116607465BActive Publication Date: 2026-03-13CCCC FIRST HARBOR ENGINEERING CO LTD +1
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-29
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

In existing technologies, the assembly of the king-shaped blocks for dam construction in mountainous rivers suffers from problems such as low construction efficiency, high safety risks, large site occupation, frequent worker contact, and uneven installation quality. In particular, it cannot meet the requirements of large ships and machinery during the dry season and non-ecological propagation period.

Method used

The system uses a flatbed cart and track system in conjunction with a traction system to move and assemble the kingpin blocks. By designing limiting components and guiding traction components, the system can achieve precise assembly and efficient transfer of the kingpin blocks, reduce worker contact, and lower safety risks.

Benefits of technology

It improved the assembly efficiency of the Twisted King Block, reduced safety risks, reduced the occupation of construction sites, achieved efficient construction progress and cost control, and solved the difficult problems of dam construction in mountainous rivers.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116607465B_ABST
    Figure CN116607465B_ABST
Patent Text Reader

Abstract

This invention relates to the field of toggle block installation technology, and more particularly to a method for assembling toggle blocks for dam construction in mountainous rivers, comprising: S1, determining and installing the specifications of the flatbed truck and track system; S2, setting up the traction system; S3, transferring and assembling the first group of toggle blocks; S4, transferring the first group of toggle blocks; S5, repeating steps S3-S4 until all toggle blocks are assembled and transferred to a transport ship; the toggle block movement is achieved by designing a flatbed truck system, with the flatbed truck moving in a straight line and within a defined range along the track system; during the assembly process, only one forklift is needed to transfer the toggle blocks onto the flatbed truck system, and then one worker can operate the traction system to directly assemble the toggle blocks.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of Twisted King Block installation technology, and in particular to a method for assembling Twisted King Blocks for dam construction in mountainous rivers. Background Technology

[0002] Small precast components are widely used in the improvement of waterways in mountainous rivers. Twisted blocks play a crucial role in energy dissipation in dam revetments. Appropriate assembly techniques can achieve better energy dissipation and extend the service life of dam projects.

[0003] With the development of the national economy, the quality of waterway improvement in the upper reaches of the Yangtze River has been gradually improved. The traditional cofferdam has been gradually transformed into a new type of cofferdam with riprap and twisted block revetment. This has gradually improved the physical quality and durability of the waterway improvement structures. However, the waterway improvement in the upper reaches of the Yangtze River can only be carried out during the dry season and non-ecological propagation period, resulting in low water levels during construction, which cannot meet the conditions for large ships and large machinery.

[0004] Building renovation often involves the design of small T-shaped blocks for facade protection, typically in sets of three or more. On-site installation often involves installing a single set at a time. To expedite installation, these blocks are frequently pre-assembled during transport, resulting in large workspace requirements, high safety risks, and the need for multiple personnel for assembly. This leads to low efficiency, a high rate of block breakage, and the risk of forklift injuries during the jacking process, further complicating on-site cost and safety management. Furthermore, the installation of small, irregularly shaped T-shaped blocks requires multiple stacks, necessitating pre-assembly before installation. Traditional T-shaped block assembly techniques are inefficient, produce uneven installation quality, and pose safety risks. Summary of the Invention

[0005] To address the shortcomings of the existing technology, this invention provides a method for assembling T-shaped blocks for dam construction in mountainous rivers that does not require forklifts during assembly and avoids worker contact with the blocks.

[0006] This invention provides a method for assembling the "Twisted King" blocks used in dam construction on mountainous rivers, comprising the following steps:

[0007] S1. Determine the specifications of the flatbed truck and track system and install them:

[0008] The size of the flatbed cart is determined according to the size of the twisted block. At least two sets of track systems are laid according to the actual size of the construction site. The number of flatbed carts is the same as the number of track systems. The wheels of the flatbed carts are placed on the track systems, and the flatbed carts can move back and forth along the track systems.

[0009] S2. Deployment of the traction system:

[0010] A traction system is installed at both ends of each track system and connected to the flatbed cart. Under the action of the traction system, the flatbed cart can move back and forth along the track system.

[0011] S3, Transferring and assembling the first set of twisted king-shaped blocks:

[0012] Using a forklift, the first twisted king block is placed on one of the flatbed trucks as required. The traction system connected to the flatbed truck is then activated, and the traction system moves the flatbed truck and the twisted king block on the flatbed truck to one end of the track system. The above operation is repeated to transfer the remaining twisted king blocks in the first group to one end of the track system in sequence, thus completing the assembly of the first group of twisted king blocks.

[0013] S4, Transfer of the first group of twisted king blocks:

[0014] The first set of twisted king blocks assembled in step S3 are bundled together, and the first set of twisted king blocks is hoisted onto the transport ship as a whole.

[0015] S5. Repeat steps S3-S4 until all the Twisted King blocks are assembled and transferred to the transport ship.

[0016] In this technical solution, the movement of the twisted king block is achieved by designing a flatbed truck system. The flatbed truck moves in a straight line and within a limited range along the track system. During the assembly process, only one forklift is needed to transport the twisted king block onto the flatbed truck system, and then one worker can operate the traction system to directly assemble the twisted king block.

[0017] In some embodiments of this application, after step S4 involves hoisting the first set of twisted blocks onto the transport ship, the following steps are performed:

[0018] S41. Transfer, assembly, and transportation of the second set of twisted king-shaped blocks:

[0019] The flatbed trolley stops at the position where the first set of twisted king blocks was assembled in step S3. Following the reverse order of the transfer of twisted king blocks in step S3, the second set of twisted king blocks is transferred to the other end of the track system. The second set of twisted king blocks is then assembled at the other end of the track system. The second set of twisted king blocks is then bundled together and hoisted onto the transport ship as a whole. The flatbed trolley system does not require empty vehicle transfer, and the two ends of the track system can be used alternately as positions for assembling twisted king blocks, improving the efficiency of assembly.

[0020] In some embodiments of this application, before step S3, the flatbed cart, the track system, and the traction system need to be tested and debugged so that the traction system can drive the flatbed cart to move on the track system, thereby ensuring the smooth and efficient assembly of the subsequent kingpin blocks.

[0021] In some embodiments of this application, the flatbed cart is configured in a one-to-one correspondence with the tracks of the track system, and the flatbed cart includes:

[0022] A base plate is used to place the Twisted King Block. Wheels are symmetrically arranged at the bottom of the base plate, and the wheels slide back and forth on the track system.

[0023] The limiting components are symmetrically arranged at both ends of the upper surface of the base plate. The limiting components are adapted to the edge shape of the limb of the twisted block and are used to limit the edge of the twisted block located on the base plate to prevent the twisted block from tipping over and falling off the flatbed truck during transportation, which would cause damage, increase costs, and delay the construction period.

[0024] Traction rings are symmetrically arranged at both ends of the base plate. The traction rings are connected to the traction system, and the traction system drives the flatbed car system to move back and forth along the track system through the traction rings.

[0025] In some embodiments of this application, in step S1, the length of the bottom plate of the cart is adapted to the length of the bottom surface of the twisted king block, and the length of the track of the track system is n times the length of the twisted king block, where n is the number of twisted king blocks in a set.

[0026] In some embodiments of this application, the limiting member includes:

[0027] The top plate is vertically fixed to the end of the bottom plate to restrict the movement of the twisted block along the length of the bottom plate;

[0028] Two side plates are symmetrically arranged at both ends of the top plate. The side plates are respectively fixed on the two sides of the bottom plate. The top plate and the side plates are arranged at an angle. The side plates are used to restrict the movement of the twisted block along the width direction of the bottom plate.

[0029] In some embodiments of this application, the traction system includes:

[0030] There are two trusses, symmetrically arranged at both ends of the track system;

[0031] There are two guide traction assemblies, one for each truss. Each guide traction assembly includes a reversing pulley, a traction rope, and a traction agitator. The reversing pulley is located at the bottom of the truss, and the traction agitator is located at the top of the truss. The fixed end of the traction rope is fixed to the traction ring, and the wound end of the traction rope passes through the reversing pulley. The direction of the traction rope changes from horizontal to vertical, and the wound end of the traction rope is wound and fixed to the traction agitator.

[0032] In some embodiments of this application, in step S3, the corresponding traction agitators on the track system are rotated sequentially, the traction rope is wound around the traction agitator, the length of the traction rope becomes shorter, and the fixed end of the traction rope drives the trolley to move towards the direction change pulley. When the trolley moves into place, the assembly of the twisted block is completed.

[0033] In some embodiments of this application, the transfer, assembly, and transport process of the second group of twisted blocks in step S41 is as follows:

[0034] The flatbed trolley stops at the position where the first set of twisted king blocks was assembled in step S3. Following the reverse order of the transfer of twisted king blocks in step S3, the traction agitator at the other end of the flatbed trolley is rotated sequentially to transfer the second set of twisted king blocks to the other end of the track system. The second set of twisted king blocks is then assembled at the other end of the track system. The second set of twisted king blocks is then bundled together and hoisted onto the transport ship as a whole. The flatbed trolley system does not require empty vehicle transfer, and the two ends of the track system can be used alternately as positions for assembling twisted king blocks, improving the efficiency of assembly.

[0035] Based on the above technical solution, the method for assembling the twisted king block for building dams in mountains and rivers of the present invention allows for forklifts to directly place the twisted king block in the flatbed truck as required, without any other operations, thus improving the efficiency of transportation.

[0036] The flatbed cart runs along the track system, enabling precise assembly of the irregularly shaped twisted blocks.

[0037] Guide traction components are designed at both ends of the track, so that workers do not need to touch the Twisted King block during the entire process, ensuring the safety of the workers during the assembly process. At the same time, the flatbed cart can carry out bidirectional assembly, which greatly improves the assembly efficiency of the Twisted King block.

[0038] This assembly method uses one forklift and one worker, which can achieve full-load operation of the forklift, resulting in high assembly efficiency, small construction site area, and is conducive to project cost control.

[0039] After assembly, the transport ship transports the blocks in groups to the construction site for direct installation. This method is highly efficient and effectively solves the major challenges of concentrated installation time and difficult organization of block installation in mountainous rivers due to flood season and fish spawning season. Attached Figure Description

[0040] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0041] Figure 1 This is a top view of the flatbed cart, track system, and traction system in an embodiment of the present invention;

[0042] Figure 2 This is a top view of the flatbed cart in an embodiment of the present invention;

[0043] Figure 3 This is a left view of the flatbed cart in an embodiment of the present invention;

[0044] Figure 4 This is a schematic diagram showing the positional relationship of the twisted king-shaped blocks on the flatbed cart in an embodiment of the present invention;

[0045] Figure 5 This is a top view of the traction system according to an embodiment of the present invention;

[0046] Figure 6 This is a partial structural diagram of the traction system and flatbed cart according to an embodiment of the present invention;

[0047] Figure 7 This is a schematic diagram showing the initial position of the first twisted block placed on the first flatbed cart in an embodiment of the present invention;

[0048] Figure 8 This is a schematic diagram showing the position of the first twisted block during transportation on the first flatbed truck in an embodiment of the present invention;

[0049] Figure 9 This is a schematic diagram showing the position of the first twisted block after it has been transferred to its place on the first flatbed cart in an embodiment of the present invention;

[0050] Figure 10 This is a schematic diagram showing the initial position of the second twisted block placed on the second flatbed cart in an embodiment of the present invention;

[0051] Figure 11 This is a schematic diagram showing the position of the second twisted block after it has been placed on the second flatbed cart and moved into place in an embodiment of the present invention;

[0052] Figure 12This is a schematic diagram showing the initial position of the third twisted block placed on the third flatbed cart in an embodiment of the present invention;

[0053] Figure 13 This is a schematic diagram showing the position of the first group of twisted blocks after they have all been transferred to their positions in this embodiment of the invention;

[0054] Figure 14 This is a schematic diagram showing the relative positional relationship of the first group of twisted blocks on the pallet truck after hoisting in an embodiment of the present invention;

[0055] Figure 15 This is a schematic diagram of the force analysis of the present invention.

[0056] In the picture,

[0057] 10. Flatbed cart; 11. Base plate; 12. Wheels; 13. Limiting component; 131. Top plate; 132. Side plate; 14. Traction ring; 101. First flatbed cart; 102. Second flatbed cart; 103. Third flatbed cart; 20. Track system; 21. Track; 30. Traction system; 31. Truss; 32. Directional pulley; 33. Traction rope; 34. Traction agitator; 40. First set of twisted kingpin blocks; 41. First twisted kingpin block; 42. Second twisted kingpin block; 43. Third twisted kingpin block. Detailed Implementation

[0058] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0059] In the description of this invention, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0060] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0061] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0062] This embodiment describes a method for assembling "Twisted King" blocks for dam construction in mountainous rivers. In this embodiment, three "Twisted King" blocks are assembled as a group, and the method includes the following steps:

[0063] S1. Determine the specifications of the flatbed truck and track system and install them:

[0064] The size of the flatbed cart 10 is determined according to the size of the twisted block. No less than two sets of track systems 20 are laid according to the size of the actual construction site. The number of flatbed carts 10 and track systems 20 is the same. The wheels of the flatbed cart 10 are placed on the track system 20, and the flatbed cart 10 can move back and forth along the track system 20.

[0065] In this embodiment, the height of the twisted king block is 1.091m, the weight of a single block is 0.8t, the volume is 0.348m3, and the concrete grade is C30 plain concrete; the length of the bottom plate of the flatbed trolley 10 is adapted to the length of the bottom surface of the twisted king block, and the length of the track 21 of the track system 20 is 3 times the length of the twisted king block; the track system 20 has three sets, each set including two parallel straight tracks 21, the tracks 21 adopt a channel steel structure to ensure that the flatbed trolley transports along the track and realizes the straight-line travel of the flatbed trolley; there are three flatbed trolleys 10, such as... Figure 1 As shown, from left to right, they are the first flatbed cart 101, the second flatbed cart 102, and the third flatbed cart 103.

[0066] S2. Deployment of the traction system:

[0067] A traction system 30 is installed at both ends of each track system 20. The traction system 30 consists of a truss 31, a traction agitator 32, a guide pulley 33, and a traction rope 34. During installation, the guide pulley 33 is precisely positioned to ensure that the guide pulley 33 can keep the flatcar 10 and the traction rope 34 horizontal under the traction of the traction agitator 32. The traction system 30 is connected to the flatcar 10, and the flatcar 10 can move back and forth along the track system 20 under the action of the traction system 30.

[0068] In this embodiment, the traction system 30 is provided in three sets corresponding to the track system 20, with two sets in each set, located at both ends of the track system 20 respectively;

[0069] After the traction system 30 is installed, the flatbed cart 10, the track system 20, and the traction system 30 need to be tested and debugged so that the traction system 30 can drive the flatbed cart to move on the track system, so as to ensure the smooth and efficient assembly of the subsequent kingpin blocks.

[0070] S3, Transferring and assembling the first set of twisted king-shaped blocks:

[0071] like Figure 7 As shown, a forklift is used to place the first twisted king block 41 of the first set of twisted king blocks 40 onto the first pallet 101 as required. The traction system 30, connected to the first pallet 101 and located near the assembly position, is manually activated. The traction system 30 simultaneously moves the first pallet 101 and the first twisted king block 41 on it to a length exceeding three times the length of the twisted king block or the pallet 101, and then the traction system 30 is fixed in place. Figures 8-9 As shown;

[0072] Repeat the above steps, such as Figures 10-11 As shown, a forklift is used to place the second twisted king block 42 of the first group on the second pallet 102 as required. The traction system 30 connected to the second pallet 102 is manually started. The traction system 30 drives the second pallet 102 and the second twisted king block 42 on the second pallet 102 to be transferred at the same time to a length that is more than twice the length of the twisted king block or the length of the pallet 102 before fixing the traction system 30.

[0073] like Figures 12-13 As shown, the forklift is used again to place the third twisted king block 43 of the first group on the third pallet 103 as required. The traction system 30 connected to the third pallet 103 is manually started. The traction system 30 drives the third pallet 103 and the third twisted king block 43 on the third pallet 103 to be transferred at the same time until it exceeds the length of the twisted king block or the length of the pallet 103, and then the traction system 30 is fixed. At this point, the assembly of the three twisted king blocks of the first group of twisted king blocks 40 is completed.

[0074] S4, Transfer of the first group of twisted king blocks:

[0075] The first set of twisted king blocks 40 assembled in step S3 are bundled together, and the first set of twisted king blocks 40 are hoisted onto the transport ship (not shown in the figure).

[0076] S41. Transfer, assembly, and transportation of the second set of twisted king-shaped blocks:

[0077] After the first set of 40 twisted king-shaped blocks were transferred to the transport ship, as follows: Figure 14As shown, the first pallet truck 101, the second pallet truck 102, and the third pallet truck 103 all remain at the position where the first set of twisted king blocks was assembled in step S3, following the reverse order of the transfer sequence of the twisted king blocks in step S3. Specifically:

[0078] Using a forklift, the first twisted king block of the second set of twisted king blocks is placed on the third pallet 103 as required. The traction system 30 connected to the third pallet 103 is manually started. The traction system 30 moves the third pallet 103 and the first twisted king block on the third pallet 103 to the other end of the track system 30. This position is the other end of the track 21 away from the assembly position of the first set of twisted king blocks 40. After moving a distance of more than 3 times the length of the twisted king block or the length of the pallet, the traction system 30 is fixed.

[0079] Then, the forklift places the second twisted king block of the second group on the second pallet 102 as required. The traction system 30 connected to the second pallet 102 is manually started. The traction system 30 moves the second pallet 102 and the second twisted king block on the second pallet 102 to the other end of the track system 30. After the moving distance exceeds twice the length of the twisted king block or the length of the pallet 102, the traction system 30 is fixed.

[0080] Using a forklift again, place the third twisted king block of the second group onto the first flatbed truck 101 as required. Manually start the traction system 30 connected to the first flatbed truck 101. The traction system 30 moves the first flatbed truck 101 and the third twisted king block on it to the other end of the track system 30. After moving a distance greater than one twisted king block length or the length of the flatbed truck, fix the traction system 30. At this point, the assembly of the three twisted king blocks of the second group is completed. Bundle the assembled second group of twisted king blocks together and lift the second group of twisted king blocks as a whole onto the transport ship (not shown in the figure).

[0081] The flatbed cart 10 does not require empty car transfer, and the two ends of the track system 20 can be used alternately as positions for assembling the king-shaped blocks, which improves the efficiency of assembly.

[0082] S5. Repeat steps S3-S41. Assemble the third group of twisted king blocks according to steps S3-S4, assemble the fourth group according to step S41, and so on, until all twisted king blocks are assembled and transferred to the transport ship.

[0083] In the above technical solution, the movement of the twisted king block is achieved by designing a flatbed cart 10. The flatbed cart 10 moves in a straight line and within a limited range along the track system 20. During the assembly process, only one forklift is needed to transport the twisted king block onto the flatbed cart system, and then one worker can operate the traction system to directly assemble the twisted king block.

[0084] like Figures 1-3 As shown, in this embodiment, the flatbed cart 10 and the track 21 of the track system 20 are arranged in a one-to-one correspondence. The flatbed cart 10 includes:

[0085] The base plate 11 is used to place the Twisted King Block. The top plate of the base plate 11 is made of 4mm thick steel plate, the middle truss is made of No. 5 I-beam, and the bottom plate is made of 2mm thick steel plate. The bottom of the base plate 11 is symmetrically equipped with wheels 12. The wheels are cylindrical stainless steel wheels with a diameter of 10cm. The wheels 12 slide back and forth on the track system 20.

[0086] There are two limiting members 13, which are symmetrically arranged at both ends of the upper surface of the base plate 11. The limiting members 13 are adapted to the edge shape of the limb of the twisted block and are used to limit the edge of the twisted block located on the base plate to prevent the twisted block from tipping over and falling off the flatbed truck during transportation, which would cause damage, increase costs and delay the construction period.

[0087] There are two traction rings 14, which are symmetrically arranged at both ends of the base plate 11. The traction rings 14 are connected to the traction system 30. The traction system 30 drives the flatbed cart 10 to move back and forth along the track system 20 through the traction rings 14.

[0088] like Figure 2 As shown, in this embodiment, the length of the base plate 11 of the flatbed trolley 10 is adapted to the length of the bottom surface of the twisted block, and the length of the track 21 of the track system 20 is 3 times the length of the twisted block.

[0089] Specifically, the limiting member 13 on the base plate 11 includes:

[0090] The top plate 131 is vertically fixed to the end of the bottom plate 11 to restrict the movement of the twisted block along the length of the bottom plate 11.

[0091] Side panels 132, two in number, symmetrically arranged at both ends of the top panel 131, as shown below. Figure 4 As shown, the side plates 132 are fixed on the two sides of the base plate 11 respectively. The top plate 131 and the side plates 132 are set at an angle, which is adapted to the angle of the edge of the limb of the twisted block. The side plates 132 are used to restrict the twisted block from moving along the width direction of the base plate 11, so as to prevent the twisted block from overturning, falling off the flatbed and causing damage.

[0092] like Figure 5 As shown, the traction system 30 in this embodiment has three sets, with two in each set, symmetrically distributed at both ends of the track. The traction system 30 includes:

[0093] There are two trusses 31, but only one truss 31 is shown in the figure. The other truss is symmetrically arranged at the other end of the track system.

[0094] There are two guide traction components, one for each truss 31. Each guide traction component includes a reversing pulley 32, a traction rope 33, and a traction agitator 34. The reversing pulley 32 is located at the bottom of the truss 31, and the traction agitator 34 is located at the top of the truss 31. The fixed end of the traction rope 33 is fixed to the traction ring 14, and the winding end of the traction rope 33 passes through the reversing pulley 32. The direction of the traction rope 33 changes from horizontal to vertical, and the winding end of the traction rope 33 is wound and fixed to the traction agitator 34.

[0095] According to the structure of the traction system in this embodiment, in step S3, the corresponding traction agitator 34 on the track system 20 is rotated in sequence, the traction rope 33 is wound around the traction agitator 34, the length of the traction rope 33 becomes shorter, and the fixed end of the traction rope 33 drives the trolley 10 to move towards the direction change pulley 32. When the trolley 10 moves into place, the assembly of the twisted king block is completed.

[0096] In this embodiment, the calculation of the traction force of the traction system 30 can be simplified as follows: Figure 15 As shown: A heavy object moves on a platform supported by circular rollers, with each roller bearing a load of N. The traction force F required to overcome the frictional resistance on one roller is:

[0097]

[0098] Where, μ k and μ k1 These are the rolling friction coefficients between the platform and the roller, and between the roller and the fixed support, respectively; the rolling friction coefficient μ of the cylindrical wheel. k1 The value is 0.05–0.07 cm; in this embodiment, it is 0.05 cm. A limiting element is provided at the bottom edge of the flatbed cart. k =0;

[0099] The cart has cylindrical wheels with a diameter of 10cm. A 10mm steel wire rope is used as the traction rope, acting at the center of the cylindrical wheel. Therefore, d = 5cm. Each twisted block weighs 0.8t. The total weight of the cart is approximately 0.35t. Then:

[0100]

[0101] F = 112.70N < 180N. The normal pulling force of a male with one hand is generally between 180 and 520N. The traction system can be maintained normally by manual intervention.

[0102] After the Twisted King block is assembled, it is promptly transported by transport ship to the construction site for installation.

[0103] The above-described method for assembling the Twisted King-shaped blocks for dam construction in mountainous rivers allows for direct placement of the blocks into a flatbed truck using a forklift, eliminating the need for further operations and improving transport efficiency. The truck operates along a track system, enabling precise assembly of the irregularly shaped Twisted King-shaped blocks. Guide traction components are designed at both ends of the track, eliminating the need for workers to contact the blocks during the entire process, ensuring worker safety. The truck can also perform bidirectional assembly, significantly improving assembly efficiency. This method utilizes one forklift and one worker, allowing for full-load operation of the forklift, resulting in high efficiency, minimal site space requirements, and improved project cost control. The method achieves full-load forklift transport and zero worker contact with components, refining the installation process for small Twisted King-shaped blocks in mountainous rivers. It meets the requirements for quality, safety management, economic cost, and construction schedule for the installation of small, irregularly shaped Twisted King-shaped blocks in mountainous rivers, providing a reference for the assembly and installation processes of small, irregularly shaped components in future mountainous river remediation projects. After assembly, the transport ship transports the blocks in groups to the construction site for direct installation. This method is highly efficient and effectively solves the major challenges of concentrated installation time and difficult organization of block installation in mountainous rivers due to flood season and fish spawning season.

[0104] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0105] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A method for assembling a twisted block for dam construction on mountain rivers, characterized in that: It comprises the following steps: S1, determine the specifications of the trolley and the track system and install them: Determine the size of the trolley according to the size of the twist king block, and lay not less than two groups of track systems according to the size of the actual construction site, the number of trolleys and track systems is the same, the wheels of the trolley are placed on the track system, and the trolley can move back and forth along the track system; S2, layout the traction system: Lay the traction system at both ends of each track system, and connect the traction system with the trolley, under the action of the traction system, the trolley can move back and forth along the track system; S3, transfer and assemble the first group of twist king blocks: Use a forklift to place the first twist king block on one of the trolleys according to the requirements, start the traction system connected with the trolley, and the traction system drives the trolley and the twist king block on the trolley to move to one end of the track system at the same time; repeat the above operation, and transfer the remaining twist king blocks in the first group of twist king blocks to one end of the track system in turn, to complete the assembly of the first group of twist king blocks; S4, transfer the first group of twist king blocks: Bundle the first group of twist king blocks assembled in step S3, and hoist the whole first group of twist king blocks to the transport ship; Repeat steps S3-S4 until all twist king blocks are assembled and transferred to the transport ship.

2. The method for assembling the V-shaped blocks for damming mountain streams according to claim 1, wherein After the whole first group of twist king blocks is hoisted to the transport ship in step S4, proceed to S41, transfer, assemble and transfer the second group of twist king blocks: The trolley stays at the position where the first group of twist king blocks is assembled in step S3, and the second group of twist king blocks are transferred to the other end of the track system in the order opposite to the transfer order of the twist king blocks in step S3, the assembly of the second group of twist king blocks is completed at the other end of the track system, and then the second group of twist king blocks are bundled, and the whole second group of twist king blocks are hoisted to the transport ship.

3. The method of claim 2, wherein the V-shaped blocks are assembled in a manner that the V-shaped blocks are arranged in a zigzag pattern. Before step S3, the trolley, the track system and the traction system need to be tested and debugged, so that the traction system can drive the trolley to move on the track system.

4. The method for assembling the V-shaped block of mountain river dam according to claim 1, characterized in that, In step S1, the length of the bottom plate of the trolley is adapted to the length of the bottom surface of the twist king block, and the length of the track of the track system is n times the length of the twist king block, n is the number of a group of twist king blocks.

5. The method of claim 2, wherein the V-shaped blocks are assembled in a damming a mountain stream, and The trolley and the track of the track system are arranged one by one, and the trolley comprises: A bottom plate for placing twist king blocks, the bottom of the bottom plate is symmetrically provided with wheels, the wheels slide back and forth on the track system; Limiting pieces symmetrically arranged at both ends of the upper surface of the bottom plate, the limiting pieces are adapted to the edge shape of the limb of the twist king block, and are used for limiting the edge of the twist king block located on the bottom plate; Traction rings symmetrically arranged at both ends of the bottom plate, the traction rings are connected with the traction system, and the traction system drives the trolley system to move back and forth along the track system through the traction rings.

6. A method of assembling V-shaped blocks for damming mountain streams according to claim 5, wherein The limiting piece comprises: A top plate vertically fixed at the end of the bottom plate is used to limit the movement of the twist king block along the length direction of the bottom plate; Two side plates symmetrically arranged at the two ends of the top plate are fixed on the two sides of the bottom plate, and the top plate and the side plate are arranged at an angle, which is used to limit the movement of the twist king block along the width direction of the bottom plate.

7. The method for assembling V-shaped blocks for damming mountain streams according to claim 5, wherein The traction system comprises: Two trusses symmetrically arranged at the two ends of the track system; Two guide traction assemblies are arranged at the bottom of the truss, and the traction stirrup is arranged at the top end of the truss, the fixed end of the traction rope is fixed on the traction ring, the winding end of the traction rope passes through the change direction pulley, the direction of the traction rope changes from horizontal to vertical, and the winding end of the traction rope is wound and fixed on the traction stirrup.

8. The method for assembling the V-shaped block of mountain river dam according to claim 7, characterized in that, In step S3, the corresponding traction stirrup on the track system is rotated in sequence, the traction rope is wound on the traction stirrup, the length of the traction rope is shortened, the fixed end of the traction rope drives the board car to move towards the change direction pulley, and when the board car moves to the position, the assembly of the twist king block is completed.

9. The method for assembling the V-shaped block of mountain river dam according to claim 7, characterized in that, In step S41, the transfer, assembly and transportation process of the second group of twist king blocks is as follows: The board car stays at the position where the first group of twist king blocks is assembled in step S3, the traction stirrup at the other end of the board car is rotated in sequence according to the sequence opposite to that of the twist king block in step S3, the second group of twist king blocks are transferred to the other end of the track system in sequence, the assembly of the second group of twist king blocks is completed at the other end of the track system, then the second group of twist king blocks are bundled, and the whole second group of twist king blocks are lifted and transported to the transport ship.

Citation Information

Patent Citations

  • Automatic formwork erecting and dismounting equipment for accropode

    CN107116669A

  • Construction method for gallery in dam

    CN110878549A