Prefabricated immersed tube tunnel water-saving sinking platform

Abstract

The present invention relates to the technical field of sinking platforms, and discloses an assembled immersed tube tunnel water-saving sinking platform, comprising a support system, wherein the support system is provided with two groups of transmission components symmetrically distributed along its axis, the transmission components are connected to a lifting and reinforcement system, the bottom of the lifting and reinforcement system is connected to a stabilizing mechanism, and the top of the support system is installed with a lifting system. The present invention reduces the impact of water on the sinking platform, improves the anti-wave performance of the sinking platform, ensures that the sinking of the immersed tube is in a stable state, improves the placement accuracy during the sinking of the immersed tube, reduces the difficulty of docking the sinking tube, and improves the efficiency of the sinking tube; the sinking platform adopts a stacking and receiving method for section-by-section docking, and stores the docking components inside the sinking platform, saving space and facilitating docking and installation operations; the sinking platform is reinforced at the bottom by a deflection and expansion method, thereby improving the stability of the sinking platform fixation.

Description

Technical Field

[0001] The present invention relates to the technical field of sinking platforms, and in particular to a water-saving submerged sinking platform for an assembled immersed tube tunnel. Background Art

[0002] Immersed tube tunneling is a large-scale water-crossing transportation project that began to develop at the beginning of this century. Several prefabricated pipe sections are lowered one by one into an excavated underwater trench. Then, through related construction, the pipe sections are combined to form a tunnel-like transportation vehicle connecting the land transportation at both ends.

[0003] During the construction of immersed tube tunnel projects, it is necessary to use towing vessels to transport the pipe sections on the sinking platform to the predetermined position and carry out the sinking operation. Certain precision requirements are required during the lowering and docking of the pipe sections. Since the sinking platform floats on the water body, under the impact of the water flow, the sinking platform turbulently follows the water flow, resulting in reduced accuracy in lowering the immersed tube. The adjustment of the sinking position of the immersed tube is troublesome, which is not conducive to the sinking operation. For this reason, an assembled immersed tube tunnel pipe section water-based sinking platform is proposed. Summary of the Invention

[0004] In order to solve the technical problems that the sinking platform floats on the water body and, under the impact of the water flow, the sinking platform is shaken by the water flow, resulting in reduced accuracy in lowering the immersed tube, and the adjustment of the immersed tube lowering position is troublesome, which is not conducive to the immersed tube lowering operation, the present invention provides an assembled immersed tube tunnel water-saving sinking platform.

[0005] The present invention is implemented by the following technical solution: an assembled immersed tube tunnel water-saving submerged sinking platform includes a support system, wherein the support system is provided with two sets of transmission components symmetrically distributed along its axis, the transmission components are connected to a lifting and reinforcement system, the bottom of the lifting and reinforcement system is connected to a stabilizing mechanism, and the top of the support system is installed with a lifting system;

[0006] The lifting and reinforcement system includes overlapping components distributed in sequence along the vertical direction, a stabilizing mechanism is connected to the overlapping component at the bottom, the overlapping components include two groups of support adjustment mechanisms distributed in sequence along the vertical direction, four groups of docking mechanisms distributed in an array are fixedly connected between the two groups of support adjustment mechanisms, a locking mechanism is hinged at the top of the top support adjustment mechanism and is slidably connected to the docking mechanism, two groups of driven mechanisms arranged parallel to the docking mechanism are installed on both sides of the support adjustment mechanism, a cross bar is fixed between the driven mechanism and the adjacent docking mechanism, and the driven mechanism is connected to the stabilizing mechanism and the support system;

[0007] The support system includes a bracket with an inverted U-shaped structure, and both ends of the bottom of the bracket are fixed with buoyancy boxes, and the buoyancy boxes are penetrated by a lifting channel. The inner side wall of the lifting channel is fixed with a retaining mechanism that is slidably connected to the driven mechanism. The bracket is fixed with multiple groups of driving mechanisms distributed in sequence along the vertical direction and connected to the driven mechanism. The transmission component is fixed with the bracket, and an adjustment mechanism fixed with the bracket is installed on the side where the two groups of transmission components are away from each other.

[0008] Through the above technical solution, the transmission component transports the overlapping components distributed along its length direction in the horizontal direction toward the direction of the adjustment mechanism, so that the overlapping components are transported to the top of the overlapping component with a stabilizing mechanism at the bottom, and the driving mechanism is used to adjust the height of the overlapping component at the bottom so that the overlapping component at the bottom can be docked with the bottom of the adjacent overlapping component above. Thereafter, the adjustment component is used to complete the docking operation of the adjacent overlapping components, and then the driving mechanism is used to move the docked overlapping components downward, and then the overlapping components are overlapped from bottom to top in sequence using the above method, thereby forming a long strip structure frame extending downward on both sides of the bottom of the bracket until the overlapping frame extends downward to the soil layer at the bottom of the water, and then the text and map mechanism is unfolded and fixed in the soil layer at the bottom of the water, so that the sinking platform is changed from a floating state to a fixed state with the soil layer at the bottom of the water, so that the sinking platform is not impacted by the water body, and the sinking platform is in a stable state, which is convenient for the bottom of the submerged pipe.

[0009] As a further improvement of the above scheme, the transmission component includes two groups of side plates arranged in parallel, and the side plates are fixedly connected to the brackets, and the two ends of the two groups of side plates close to each other are fixed with cross plates, and the bottom of the cross plates is provided with a ring-shaped chain, the inner ring of the chain is connected to a sprocket, the inner ring of the sprocket is fixed to a rotating shaft fixed to the bracket, and the outer ring of the chain is fixed to an L-shaped pushing plate distributed in sequence along its length direction, and the end of the cross plate away from the side plate connected to it is fixed to an L-shaped support plate, and the end of the rotating shaft extending out of the bracket is fixed to a motor.

[0010] Through the above technical solution, once the motor is started, it drives the rotating shaft to rotate, and then the chain moves driven by the sprocket. At this time, the pushing plate located on the chain will transfer the overlapping components placed on the pushing plate toward the adjustment mechanism. When overlapping, the overlapping components are distributed between the two sets of side plates, and the plug-in plates on both sides of the support frame extend from the outside of the support frame and are overlapped and placed in the overlapping grooves on the pushing plate. The pushing plate is used to lift and transport the plug-in plates on the two sets of support frames.

[0011] As a further improvement of the above-mentioned scheme, the retaining mechanism includes a retaining plate with one end fixed to the inner wall of the lifting channel, and a sliding groove 1 with an inwardly concave arc structure is provided at the other end of the retaining plate, and an inwardly concave limiting groove 1 is provided on the inner wall of the sliding groove 1, and both the sliding groove 1 and the limiting groove 1 are slidably connected to the driven mechanism.

[0012] Through the above technical solution, it is slidably connected with the driven mechanism to limit the movement direction of the driven mechanism.

[0013] As a further improvement of the above scheme, the driving mechanism includes a box body fixedly connected to the inner wall of the lifting channel, and a second motor is installed inside the box body. The output end of the second motor is connected to a driving shaft that is rotatably sleeved with the box body, and the end of the driving shaft extending out of the box body is equipped with a helical gear that meshes with the driven mechanism.

[0014] Through the above technical solution, the driven mechanism is driven to rise and fall by means of the helical gear and the helical rack, thereby driving the overlapping assembly to rise and fall.

[0015] As a further improvement of the above-mentioned solution, the stabilizing mechanism includes an adjustment unit connected to the driven mechanism of the bottommost overlapping component, the adjustment unit is hinged with a pull rod, the other end of the pull rod is hinged with a deflection plate, the bottom of the deflection plate is hinged with a connecting seat fixed to the driven mechanism, and the deflection plate is provided with array-distributed insertion units.

[0016] Through the above technical solution, the adjustment unit moves downward, and then the pull rod drives the deflection plate to deflect. After the deflection plate in the vertical state is deflected to the horizontal state, it collides with the top of the soil layer. Then, under the action of motor four, the blades are inserted into the soil layer to realize the reinforcement operation with the soil layer.

[0017] As a further improvement of the above solution, the lifting system includes a winch and a steel cable, and the winch is fixed on the bracket.

[0018] Through the above technical solution, the hanging and lifting operations of the immersed tube segments are realized.

[0019] As a further improvement of the above scheme, the support adjustment mechanism includes a support frame with a rectangular structure, and the support frame is fixedly sleeved with the docking mechanism, the support frame is rotatably connected to an adjustment rod, the outer ring of the adjustment rod is threadedly sleeved with a sliding tube located in the inner ring of the support frame, the outer rings at both ends of the sliding tube are slidably connected to a closed tube fixed to the inner side wall of the inner ring of the support frame, the outer ring of the sliding tube is fixed to a push-pull plate, both sides of the push-pull plate are hinged with a pull rod 2, the other end of the pull rod 2 is hinged with a movable plate, the end of the movable plate away from the pull rod 2 is fixed with multiple groups of plug-in plates distributed in sequence along the length direction of the movable plate, and the support frame is penetrated by an extension groove that is slidably connected to the plug-in plate.

[0020] As a further improvement of the above scheme, the docking mechanism includes a column 1 fixedly connected to the support adjustment mechanism, a docking plate fixedly connected to the bottom of the column 1, a docking groove 1 extending upward is provided at the bottom of the docking plate, a tightening groove with an arc-shaped structure is provided at the top of the docking groove 1, a docking groove 2 extending downward is provided at the top of the column 1, a rotating shaft 1 is rotatably sleeved inside the docking groove 2, a locking plate is fixedly sleeved on the outer ring of the rotating shaft 1, a guide hole is provided on one side of the top of the column 1, and the rotating shaft 1 extends into the guide hole, the guide hole is slidably sleeved with a resistance rod moving along its length direction, the resistance rod is threadedly sleeved with the rotating shaft 1, and one end of the resistance rod extending into the guide hole is fixed with a spring fixed to the inner side wall of the end of the guide hole.

[0021] As a further improvement of the above-mentioned scheme, the locking mechanism includes a top plate that is slidably sleeved with the docking mechanism, a pull rod three is hingedly connected to the adjacent support adjustment mechanism at the bottom of the top plate, a protective sleeve that is slidably sleeved with the docking mechanism is fixedly connected to the top of the top plate, a downwardly extending accommodating groove is provided at the top of the protective sleeve, and the accommodating groove is located on the inner ring side wall of the protective sleeve, and a trapezoidal extrusion block is fixedly connected to the inner side wall of the accommodating groove.

[0022] As a further improvement of the above solution, the driven mechanism is fixed to the column two adjacent to the cross bar, and the side of the column two away from the cross bar is fixed with an oblique rack distributed along the length direction of the column two, and the oblique rack is connected to the stabilizing mechanism and the support system, and a docking groove two is provided on the top of the column two, and a docking plate two is fixed to the bottom of the column two.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention adopts an assembled design to realize the adjustment operation of the fixed mode and the mobile mode of the sinking platform. During the lowering of the immersed tube, the sinking platform is fixed to the soil layer, reducing the impact of the water on the sinking platform, improving the wave resistance of the sinking platform, ensuring that the sinking of the immersed tube is in a stable state, improving the placement accuracy during the lowering of the immersed tube, reducing the difficulty of docking the immersed tube, and improving the lowering efficiency of the immersed tube.

[0025] 2. The sinking platform of the present invention adopts a stacking and receiving method to carry out section-by-section docking, and the docking components are stored inside the sinking platform, which saves space and facilitates the docking installation operation; the sinking platform is reinforced at the bottom by a deflection and expansion method to improve the stability of the sinking platform fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram of the support adjustment mechanism provided by the present invention;

[0027] Figure 2 A schematic diagram of the structure of the assembled immersed tube tunnel water-saving sinking platform provided by the present invention;

[0028] Figure 3 A schematic structural diagram of the stabilizing mechanism provided by the present invention;

[0029] Figure 4 A schematic structural diagram of the splice assembly provided by the present invention;

[0030] Figure 5 A schematic structural diagram of the transmission component provided by the present invention;

[0031] Figure 6 A cross-sectional view of the splice assembly provided by the present invention;

[0032] Figure 7 The present invention provides Figure 6 Partial enlargement of the image;

[0033] Figure 8 A schematic structural diagram of the docking mechanism provided by the present invention;

[0034] Figure 9 This is a structural schematic diagram of the locking mechanism provided by the present invention.

[0035] Description of main symbols:

[0036] 1. Support system; 2. Transmission component; 3. Lifting and reinforcement system; 4. Stabilizing mechanism; 5. Lifting system; 6. Overlap component; 11. Bracket; 12. Floating box; 13. Lifting channel; 14. Holding mechanism; 15. Driving mechanism; 16. Adjustment mechanism; 21. Side plate; 22. Cross plate; 23. Rotating shaft; 24. Chain; 25. Sprocket; 27. Support plate; 41. Adjustment unit; 42. Pull rod; 43. Deflection plate; 44. Connecting seat; 45 Insertion unit; 61. Support adjustment mechanism; 62. Docking mechanism; 63. Locking mechanism; 64. Driven mechanism; 65. Cross bar; 611. Support frame; 612. Adjustment rod ;613, sliding tube;614, closing tube;615, push-pull plate;616, pull rod two;617, movable plate;618, plug-in plate;619, extension groove;6110, retaining ring;6111, installation cavity;6112, limiting tube;6113, connecting rod;6114, limiting block;621, column one;622, locking plate one;623, docking groove one;624, tightening groove;625, rotating shaft one;627, locking plate;628, contact rod;631, top plate;632, pull rod three;633, protective sleeve;634, accommodating groove;635, extrusion block;641, column two;642, bevel rack. DETAILED DESCRIPTION

[0037] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0038] Example 1:

[0039] Please combine Figures 1-9 The assembled immersed tube tunnel water-saving sinking platform of this embodiment includes a support system 1, which is provided with two sets of transmission components 2 symmetrically distributed along its axis. The immersed tube lowering transmission components 2 are connected to a lifting and reinforcement system 3, and the bottom of the lifting and reinforcement system 3 is connected to a stabilizing mechanism 4. The top of the support system 1 is installed with a lifting system 5;

[0040] The lifting and reinforcement system 3 includes overlapping components 6 distributed in sequence along the vertical direction. The stabilizing mechanism 4 is connected to the overlapping component 6 at the bottom. The overlapping component 6 includes two groups of support adjustment mechanisms 61 distributed in sequence along the vertical direction. Four groups of docking mechanisms 62 distributed in an array are fixedly connected between the two groups of support adjustment mechanisms 61. The top of the top support adjustment mechanism 61 is hinged with a locking mechanism 63 that is slidably connected to the docking mechanism 62. Two groups of driven mechanisms 64 arranged parallel to the docking mechanism 62 are installed on both sides of the support adjustment mechanism 61. A cross bar 65 is fixed between the driven mechanism 64 and the adjacent docking mechanism 62, and the driven mechanism 64 is connected to the stabilizing mechanism 4 and the support system 1.

[0041] The support system 1 includes an inverted U-shaped bracket 11, and both ends of the bottom of the immersed tube lowering bracket 11 are fixed with buoyancy boxes 12. The buoyancy box 12 is penetrated by a lifting channel 13. The inner side wall of the lifting channel 13 is fixed with a retaining mechanism 14 that is slidably connected to the driven mechanism 64. The bracket 11 is fixed with multiple groups of driving mechanisms 15 distributed in sequence along the vertical direction and connected to the driven mechanism 64. The transmission component 2 is fixed to the bracket 11, and an adjustment mechanism 16 fixed to the bracket 11 is installed on the side where the two groups of transmission components 2 are away from each other.

[0042] The implementation principle of the assembled immersed tube tunnel water-saving submerged sinking platform in the embodiment of the present application is as follows: the transmission component 2 transports the overlapping components 6 distributed along its length direction in the horizontal direction toward the adjustment mechanism 16, so that the overlapping components 6 are transported to the top of the overlapping component 6 with the stabilizing mechanism 4 at the bottom, and the driving mechanism 15 is used to adjust the height of the lowest overlapping component 6 so that the lowest overlapping component 6 can be docked with the bottom of the adjacent overlapping component 6 above. Thereafter, the adjustment component 16 is used to complete the docking operation of the adjacent overlapping components 6, and then the driving mechanism 15 is used to move the docked overlapping components 6 downward. Then, the overlapping components 6 are overlapped from bottom to top in the above-mentioned manner, thereby forming a long strip structure extending downward on both sides of the bottom of the bracket 11 until the overlapped frame extends downward into the soil layer at the bottom of the water. Then, the texturing mechanism 4 is unfolded and fixed in the soil layer at the bottom of the water, so that the sinking platform is transformed from a floating state to a fixed state with the soil layer at the bottom of the water, so that the sinking platform is not impacted by the water body and is in a stable state, which is convenient for the lowering of the immersed tube.

[0043] Example 2:

[0044] Based on Example 1, this embodiment is further improved in that: the immersed tube lowering transmission component 2 includes two groups of side plates 21 arranged in parallel, and the side plates 21 are fixedly connected to the bracket 11, and the two ends of the side of the two groups of side plates 21 close to each other are fixedly connected to a cross plate 22, and the bottom of the cross plate 22 is provided with a ring-shaped chain 24, the inner ring of the chain 24 is connected to a sprocket 25, and the inner ring of the sprocket 25 is fixedly connected to a rotating shaft 23 fixed to the bracket 11, and the outer ring of the chain 24 is fixedly connected to an L-shaped pushing plate 26 distributed in sequence along its length direction, and the end of the cross plate 22 away from the side plate 21 connected to it is fixedly connected to an L-shaped supporting plate 27, and the end of the rotating shaft 23 extending out of the bracket 11 is fixedly connected to a motor 1, and a lap groove is provided on the top of the pushing plate 26.

[0045] Example 3:

[0046] Based on Example 1, this embodiment is further improved in that: the immersed tube lowering and holding mechanism 14 includes a holding plate with one end fixed to the inner wall of the lifting channel 13, and the other end of the holding plate is provided with a sliding groove 1 with an inwardly concave arc structure, and the inner wall of the sliding groove 1 is provided with an inwardly concave limiting groove 1, and the sliding groove 1 and the limiting groove 1 are both slidably connected to the driven mechanism 64.

[0047] The immersed tube lowering drive mechanism 15 includes a box fixedly connected to the inner wall of the lifting channel 13, and a second motor is installed inside the box. The output end of the second motor is connected to a driving shaft that is rotatably sleeved with the box. The end of the driving shaft extending out of the box is equipped with a helical gear that meshes with the driven mechanism 64.

[0048] The immersed tube lowering and stabilizing mechanism 4 includes an adjustment unit 41 connected to the driven mechanism 64 of the bottom overlapping component 6. The adjustment unit 41 is hinged with a pull rod 42. The other end of the pull rod 42 is hinged with a deflection plate 43. The bottom of the deflection plate 43 is hinged with a connecting seat 44 fixed to the driven mechanism 64. The deflection plate 43 is provided with an array-distributed insertion unit 45. The structure of the adjustment unit 41 is consistent with that of the driving mechanism 15. The insertion unit 45 includes a rotating rod rotatably connected to the deflection plate 43. The outer ring of the rotating rod is fixedly sleeved with a spiral structure extending into the blade, and the end of the rotating rod extending out of the top of the deflection plate 43 is fixedly connected to a motor four.

[0049] The immersed tube lowering adjustment mechanism 16 includes a push rod motor fixedly connected to the bracket 11, the output end of the push rod motor close to the transmission component 2 is fixedly connected to the motor 3, the output end of the motor 3 is connected to the adjustment disk, and the end of the adjustment disk away from the motor 3 is provided with a plug hole; the outer ring of the end of the adjustment rod 612 extending out of the support frame 611 is provided with a retaining ring 6110, and the support frame 611 is reserved with an installation cavity 6111. The installation cavity 6111 is installed with a limiting block 6114 fixedly sleeved with the outer ring of the adjustment rod 612, and the outer ring of the limiting block 6114 slides along its length. The limiting tube 6112 moves in the degree direction, and a connecting rod 6113 that is slidably connected to the support frame 611 is fixed between the limiting tube 6112 and the retaining ring 6110. A spring 1 that is fixed to the inner wall of the end of the installation cavity 6111 is fixed on the side of the limiting tube 6112 away from the retaining ring 6110. The outer cross-section of the end of the adjusting rod 612 extending out of the support frame 611 is consistent with the cross-section structure of the plug-in hole and both are regular polygon structures. The outer cross-section of the limiting block 6114 is consistent with the inner cross-section structure of the limiting tube 6112 and both are regular polygon structures.

[0050] Example 4:

[0051] The immersed tube lowering and lifting system 5 includes a winch and a steel cable, and the winch is fixed on the bracket 11.

[0052] Example 5:

[0053] The support and adjustment mechanism 61 for lowering the immersed tube includes a support frame 611 of a rectangular structure, and the support frame 611 is fixedly sleeved with the docking mechanism 62. The support frame 611 is rotatably connected to an adjustment rod 612. The outer ring of the adjustment rod 612 is threadedly sleeved with a sliding tube 613 located on the inner ring of the support frame 611. The outer rings of both ends of the sliding tube 613 are slidably connected to a closed tube 614 fixed to the inner side wall of the inner ring of the support frame 611. The outer ring of the sliding tube 613 is fixed to a push-pull plate 615. Both sides of the push-pull plate 615 are hinged with a second pull rod 616. The other end of the second pull rod 616 is hinged with a movable plate 617. The end of the movable plate 617 away from the second pull rod 616 is fixed with multiple groups of plug-in plates 618 distributed in sequence along the length direction of the movable plate 617. The support frame 611 is penetrated by an extension groove 619 that is slidably connected to the plug-in plate 618. A lap rod is fixed to the bottom of the plug-in plate 618, and the lap rod is clamped in the lap groove.

[0054] The immersed tube lowering docking mechanism 62 includes a column 1 621 fixedly connected to the support frame 611 of the support adjustment mechanism 61, a docking plate 622 fixedly connected to the bottom of the column 1 621, a docking groove 1 623 extending upward is provided at the bottom of the docking plate 622, a tightening groove 624 with an arc-shaped structure is provided at the top of the column 1 621, a docking groove 2 625 extending downward is provided, a rotating shaft 1 626 is rotatably sleeved inside the docking groove 2 625, a locking plate 627 is fixedly sleeved on the outer ring of the rotating shaft 1 626, a guide hole is provided on one side of the top of the column 1 621, and the rotating shaft 1 626 extends into the guide hole, a resistance rod 628 moving along its length direction is slidably sleeved in the guide hole, the resistance rod 628 is threadedly sleeved on the rotating shaft 1 626, and one end of the resistance rod 628 extending into the guide hole is fixedly connected to a spring fixed to the inner side wall of the end of the guide hole.

[0055] The immersed tube lowering locking mechanism 63 includes a top plate 631 which is slidably sleeved with the outer ring of the column 1 621 of the docking mechanism 62, and a pull rod 3 632 which is hinged to the push-pull plate 615 of the adjacent support adjustment mechanism 61 at the bottom of the top plate 631. A protective sleeve 633 which is slidably sleeved with the outer ring of the column 1 621 of the docking mechanism 62 is fixed to the top of the top plate 631, and a downwardly extending receiving groove 634 is provided at the top of the protective sleeve 633, and the receiving groove 634 is located on the inner ring side wall of the protective sleeve 633, and the inner side wall of the receiving groove 634 is fixed with a trapezoidal extrusion block 635.

[0056] The immersed tube lowering driven mechanism 64 is fixed to the column 2 641 of the adjacent cross bar 65, and the side of the column 2 641 away from the cross bar 65 is fixed with an oblique rack 642 distributed along the length direction of the column 2 641, and the oblique rack 642 is meshed with the helical gears on the stabilizing mechanism 4 and the support system 1. A docking groove 2 is provided on the top of the column 2 641, and a docking plate 2 is fixed to the bottom of the column 2 641.

[0057] Working principle:

[0058] When transporting and sinking the immersed pipe segment, the lifting system 5 provided on the bracket 11 is connected to the pipe segment by a steel cable, and the lifting and lowering of the pipe segment is adjusted by a winch by retracting and extending the steel cable. At the same time, the sinking platform is transported to the position above the pipe segment to be installed by a towing vessel, and two sets of sinking platforms are used to lift and fix the top of the pipe segment.

[0059] When the sinking platform is being firmly installed, the transmission component 2 transports the overlapping components 6 distributed along its length direction in the horizontal direction toward the adjustment mechanism 16, so that the overlapping components 6 are transported to the top of the overlapping component 6 with the stabilizing mechanism 4 at the bottom, and the driving mechanism 15 is used to adjust the height of the overlapping component 6 at the bottom so that the overlapping component 6 at the bottom can be docked with the bottom of the adjacent overlapping component 6 above. Thereafter, the adjustment component 16 is used to complete the docking operation of the adjacent overlapping components 6, and then the driving mechanism 15 is used to move the docked overlapping components 6 downward, and then the overlapping components 6 are overlapped from bottom to top in the above manner, thereby forming a long strip structure frame extending downward on both sides of the bottom of the bracket 11 until the overlapped frame extends downward to the bottom soil layer, and then the text and image mechanism 4 is unfolded and fixed in the bottom soil layer, so that the sinking platform is changed from a floating state to a fixed state with the bottom soil layer, so that the sinking platform is not impacted by the water body, and the sinking platform is in a stable state, which is convenient for the sinking pipe.

[0060] When the transmission component 2 is running, the motor starts, driving the rotating shaft 23 to rotate, and then the chain 24 moves under the drive of the sprocket 25. At this time, the pushing plate 26 on the chain 24 transfers the overlapping component 6 placed on the pushing plate 26 toward the adjustment mechanism 16. When overlapping, the overlapping component 6 is distributed between the two sets of side plates 21, and the plug-in plates 618 on both sides of the support frame 611 extend from the outside of the support frame 611 and are overlapped and placed in the overlapping grooves on the pushing plate 26. The pushing plate 26 is used to lift and transport the plug-in plates 618 on the two sets of support frames 611;

[0061] When docking, the push rod motor on the adjustment mechanism 16 is started, and the adjustment disk is pushed toward one end of the adjustment rod 612 on the support frame 611. At this time, the adjustment disk first contacts the retaining ring 6110 and pushes the retaining ring 6110 toward the support frame 611. Then the connecting rod 6113 drives the limiting tube 6112 to move, so that the limiting tube 6112 moves relative to the limiting block 6114. The limiting tube 6112 does not restrict the limiting block 6114, so that the adjustment rod 612 can rotate. At the same time, the socket hole on the adjustment disk is docked with the adjustment rod 612, and then the motor 3 is started to rotate the adjustment rod 612. When rotating, the sliding tube 613 is driven to move along its length direction under the action of the thread, and then the push-pull plate 615 moves, the push-pull plate 615 drives the second pull rod 616 and the third pull rod 632 to move, and the second pull rod 616 drives the movable plate 617 to move, so that the plug-in plate 618 moves toward the side of the adjustment rod 612, so that the plug-in plate 618 overlapped on the push plate 26 moves toward the inside of the support frame 611 and moves away from the overlapping groove at the top of the push plate 26, so that the push plate 26 does not lift and support the overlapping component 6. At this time, the lifting and lowering adjustment of the overlapping component 6 can be achieved under the action of the driving mechanism 15;

[0062] At the same time, when the adjacent overlapping components 6 are overlapped, the docking plate 622 at the bottom of the column 1 621 on the top overlapping component 6 is inserted into the docking groove 2 625 at the top of the bottom column 1 621, and the locking plate 627 is in a vertical state when docking, and the locking plate 627 moves upward from the docking groove 1 623 at the bottom of the docking plate 622 to the tightening groove 624. At the same time, the column 2 641 on the driven mechanism 64 is plugged in the same way. When the pull rod 3 632 moves with the push-pull plate 615, the top plate 631 moves upward, and the protective sleeve 633 moves upward and moves with the adjacent top column 1 621. At this time, the resistance rod 628 on the top column 1 621 moves out of the protective sleeve. The top opening of the receiving groove 634 of the inner ring of 633 enters the receiving groove 634, and then moves upward with the protective sleeve 633. The extrusion block 635 on the receiving groove 634 interferes with the interference rod 628, causing the interference rod 628 to move along its length direction. Under the action of the spring, the interference rod 628 drives the rotating shaft 1 626 to rotate, and then the locking plate 627 deflects from the vertical state to the horizontal state. The locking plate 627 is engaged in the tightening groove 624, completing the docking and locking operation of the adjacent columns 1 621. The protective sleeve 633 reinforces and protects the docking part between the adjacent columns 1 621, improves the strength between the adjacent columns 1 621, prevents the adjacent columns 1 621 from deflecting, and improves the docking stability.

[0063] When the lap assembly 6 is raised or lowered, the second motor on the driving mechanism 15 is started, so that the helical gear drives the helical rack on the driven mechanism 64 to move, so that the second column 641 moves up and down. When the stabilizing mechanism 4 is unfolded, the same method as above is used to move the adjustment unit 41 downward, and then the pull rod 42 drives the deflection plate 43 to deflect. After the deflection plate 43 in the vertical state is deflected to the horizontal state, it contacts the top of the soil layer. Then, under the action of the fourth motor, the blade is inserted into the soil layer to achieve the reinforcement operation with the soil layer.

[0064] The design first adopts an assembled design to realize the adjustment operation of the fixed mode and mobile mode of the sinking platform. During the lowering of the immersed tube, the sinking platform is fixed to the soil layer, reducing the impact of the water on the sinking platform, improving the wave resistance of the sinking platform, ensuring that the lowering of the immersed tube is in a stable state, improving the placement accuracy during the lowering of the immersed tube, reducing the difficulty of docking the lowering of the immersed tube, and improving the lowering efficiency of the immersed tube; the sinking platform adopts a stacking and receiving method for section-by-section docking, and the docking components are stored inside the sinking platform, saving space and facilitating docking and installation operations; the deflection deployment method is used to reinforce the sinking platform at the bottom to improve the stability of the sinking platform's fixation.

[0065] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. The assembled immersed tube tunnel water-saving sinking platform is characterized by: The support system comprises two transmission components symmetrically distributed along its axis, the transmission components are connected to a lifting and reinforcement system, the bottom of the lifting and reinforcement system is connected to a stabilizing mechanism, and the top of the support system is equipped with a lifting system; The lifting and reinforcement system includes overlapping components distributed in sequence along the vertical direction, a stabilizing mechanism is connected to the overlapping component at the bottom, the overlapping components include two groups of support adjustment mechanisms distributed in sequence along the vertical direction, four groups of docking mechanisms distributed in an array are fixedly connected between the two groups of support adjustment mechanisms, a locking mechanism is hinged at the top of the top support adjustment mechanism and is slidably connected to the docking mechanism, two groups of driven mechanisms arranged parallel to the docking mechanism are installed on both sides of the support adjustment mechanism, a cross bar is fixed between the driven mechanism and the adjacent docking mechanism, and the driven mechanism is connected to the stabilizing mechanism and the support system; The support system includes a bracket with an inverted U-shaped structure, with buoyancy boxes fixedly connected to both ends of the bottom of the bracket, a lifting channel passing through the buoyancy box, a retaining mechanism slidably connected to a driven mechanism fixedly connected to the inner side wall of the lifting channel, a plurality of driving mechanisms sequentially distributed in the vertical direction and connected to the driven mechanism fixedly connected to the bracket, a transmission component fixedly connected to the bracket, and an adjustment mechanism fixed to the bracket installed on the side where the two transmission components are separated from each other; The holding mechanism includes a holding plate with one end fixed to the inner wall of the lifting channel, and a sliding groove 1 with an inwardly concave arc structure is formed on the other end of the holding plate. The inner wall of the sliding groove 1 is provided with an inwardly concave limiting groove 1, and the sliding groove 1 and the limiting groove 1 are both slidably connected to the driven mechanism; The support adjustment mechanism includes a support frame of a rectangular structure, and the support frame is fixedly sleeved with the docking mechanism, the support frame is rotatably connected to an adjustment rod, the outer ring of the adjustment rod is threadedly sleeved with a sliding tube located on the inner ring of the support frame, the outer rings at both ends of the sliding tube are slidably connected to a closed tube fixed to the inner side wall of the inner ring of the support frame, the outer ring of the sliding tube is fixed to a push-pull plate, both sides of the push-pull plate are hinged with a pull rod 2, the other end of the pull rod 2 is hinged with a movable plate, the end of the movable plate away from the pull rod 2 is fixed with multiple groups of plug-in plates distributed in sequence along the length direction of the movable plate, and the support frame is penetrated by an extension groove slidably connected to the plug-in plate.

2. The assembled immersed tube tunnel water-saving sinking platform according to claim 1, characterized in that: The transmission assembly includes two groups of side plates arranged in parallel, and the side plates are fixedly connected to the brackets. Both ends of the two groups of side plates close to each other are fixedly connected to cross plates, and a ring-shaped chain is provided at the bottom of the cross plates. The inner ring of the chain is connected to a sprocket, and the inner ring of the sprocket is fixedly connected to a rotating shaft fixed to the bracket, and the outer ring of the chain is fixedly connected to an L-shaped pushing plate distributed in sequence along its length direction. The end of the cross plate away from the side plate connected to it is fixedly connected to an L-shaped supporting plate, and the end of the rotating shaft extending out of the bracket is fixedly connected to motor 1.

3. The assembled immersed tube tunnel water-saving sinking platform according to claim 1 is characterized in that: The driving mechanism includes a box body fixedly connected to the inner wall of the lifting channel, a second motor is installed inside the box body, the output end of the second motor is connected to a driving shaft rotatably sleeved with the box body, and one end of the driving shaft extending out of the box body is installed with a helical gear meshing with the driven mechanism.

4. The assembled immersed tube tunnel water-saving sinking platform according to claim 1, characterized in that: The stabilizing mechanism includes an adjustment unit connected to the driven mechanism of the bottommost overlapping component. The adjustment unit is hinged with a pull rod, and the other end of the pull rod is hinged with a deflection plate. The bottom of the deflection plate is hinged with a connecting seat fixed to the driven mechanism, and the deflection plate is provided with array-distributed insertion units.

5. The assembled immersed tube tunnel water-saving sinking platform according to claim 1, characterized in that: The lifting system includes a winch and a steel cable, and the winch is fixed on the bracket.

6. The assembled immersed tube tunnel water-saving submerged platform according to claim 1, characterized in that: The docking mechanism includes a column 1 fixedly connected to the support and adjustment mechanism, a docking plate fixedly connected to the bottom of the column 1, a docking groove 1 extending upward is provided at the bottom of the docking plate, a tightening groove with an arc-shaped structure is provided at the top of the docking groove 1, a docking groove 2 extending downward is provided at the top of the column 1, a rotating shaft 1 is rotatably sleeved inside the docking groove 2, a locking plate is fixedly sleeved on the outer ring of the rotating shaft 1, a guide hole is provided on one side of the top of the column 1, and the rotating shaft 1 extends into the guide hole, a resistance rod moving along its length direction is slidably sleeved in the guide hole, the resistance rod is threadedly sleeved with the rotating shaft 1, and one end of the resistance rod extending into the guide hole is fixedly connected to a spring fixed to the inner side wall of the end of the guide hole.

7. The assembled immersed tube tunnel water-saving sinking platform according to claim 1, characterized in that: The locking mechanism includes a top plate that is slidably sleeved with the docking mechanism, a pull rod three is hingedly connected to the adjacent support adjustment mechanism at the bottom of the top plate, a protective sleeve is fixedly connected to the top of the top plate that is slidably sleeved with the docking mechanism, a downwardly extending accommodating groove is opened at the top of the protective sleeve, and the accommodating groove is located on the inner ring side wall of the protective sleeve, and a trapezoidal extrusion block is fixedly connected to the inner side wall of the accommodating groove.

8. The assembled immersed tube tunnel water-saving submerged platform according to claim 1, characterized in that: The driven mechanism is fixed to the column two adjacent to the cross bar, and the side of the column two away from the cross bar is fixed with an oblique rack distributed along the length direction of the column two, and the oblique rack is connected to the stabilizing mechanism and the support system, and the top of the column two is provided with a docking groove two, and the bottom of the column two is fixed with a docking plate two.

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