Closure Structure for the Enclosure of the Bucket Foundation Structure and Its Construction Method

Abstract

The present invention discloses a cofferdam closure structure for a bucket foundation structure and its construction method, which includes a bucket foundation structure, a plurality of guide frames and a barrel extension body. The plurality of guide frames are installed at the bottom of the barrel extension body. The lower part of the guide frame is in an isosceles trapezoid structure, and the lower part of the guide frame extends out of the bottom of the barrel extension body. The lower part of the guide frame is adapted to the cavity of the bucket foundation structure. When the barrel extension body is installed on the bucket foundation structure, the guide frame can be clamped into the cavity of the bucket foundation structure. The barrel extension body and the bucket foundation structure are connected into an integral body by pouring concrete. The present invention has reasonable design and compact structure, ensures the precise alignment of the extended part and the foundation structure, avoids deviation, limits the displacement of the barrel extension body in a specific direction, prevents shaking caused by water flow force, and the barrel extension body and the bucket foundation structure are connected into an integral body by pouring concrete, which can resist horizontal force and vertical force, and improves the overall stability of the cofferdam closure structure.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy projects, specifically to a closed structure for the closure of the cofferdam of a bucket foundation structure and its construction method. Background Technique

[0002] The bucket foundation structure is a new type of hydraulic structure that has achieved success in engineering practice and is currently in the promotion stage. As a cofferdam structure in the reclamation area, the bucket at the closure of the cofferdam is different from other buckets. The elevation of the bucket is underwater. After the installation of other buckets is completed, the bucket at the closure can be extended upwards. However, due to the underwater elevation of the bucket, visual installation is not possible, and it is not easy to position the upper structure. At the same time, the positioned upper structure also needs to have a certain stiffness to resist the water flow force, and wait for the subsequent concrete pouring to connect the installation structure and the bucket foundation structure into a whole. Due to the underwater extension and the large water flow velocity, it is not convenient to support the formwork for cast-in-place concrete, and the construction risk is high. Summary of the Invention

[0003] The purpose of the present invention is to provide a closed structure for the closure of the cofferdam of a bucket foundation structure and its construction method to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A closed structure for the closure of the cofferdam of a bucket foundation structure, including a bucket foundation structure, a plurality of guiding frames, and an extended bucket. The plurality of guiding frames are installed at the bottom of the extended bucket. The lower part of the guiding frame is in an isosceles trapezoid structure and extends out of the bottom of the extended bucket. The lower part of the guiding frame is adapted to the cavity of the bucket foundation structure. When the extended bucket is installed on the bucket foundation structure, the guiding frame can be clamped into the cavity of the bucket foundation structure, and the extended bucket and the bucket foundation structure are connected into a whole by pouring concrete.

[0005] Further, a reinforcing edge is formed by inward extension of the upper opening edge of the extended bucket. The guiding frame is installed on the extended bucket by bolts, and grooves are opened at the outer ends of the two inclined surfaces of the guiding frame. A plurality of guiding wheels are rotatably arranged at equal intervals in the grooves. The guiding wheels and the guiding frame are both made of steel, and a buffer pad is arranged at the bottom end of the guiding frame.

[0006] The present invention also discloses a construction method for the closed structure of the cofferdam of the bucket foundation structure, including the following steps:

[0007] S1. Install the bucket foundation structure, fill the cavity with backfill sand to a level 1 m below the upper edge and level it, and precast the extended bucket according to the dimensions of the installed bucket foundation structure;

[0008] S2. Manufacture a suitable guiding frame and connect the precast extended bucket and the guiding frame into a whole by bolts;

[0009] S3. After hoisting the extension barrel body above the barrel foundation structure, lower it and install it on the barrel foundation structure. During the lowering and installation process, it is positioned by sliding into the barrel foundation structure through the guiding frame and getting stuck in its cavity.

[0010] S4. Pour concrete to a level at least 1 m above the assembly joint. After the concrete reaches the design strength, connect the extension barrel body and the barrel foundation structure into an integral whole.

[0011] Among them, the hoisting operation of the extension barrel body in step S3 is realized by a crane ship and a hoisting assembly. The hoisting assembly is used to connect the extension barrel body. The hoisting assembly includes a support base and a support frame. The support base is used to connect with the crane ship. A number of the support frames are arranged at equal intervals on the side end of the support base. A bearing mechanism is movably arranged at the bottom end of each support frame. A support mechanism is arranged at the bottom end of the support base. The support mechanism can extend into the cavity of the extension barrel body, and the movable part in the support mechanism can extend out and abut against the bottom of the strengthening edge. The bearing mechanism can rotate to abut against the bottom end of the extension barrel body, so as to connect the upper and lower ends of the extension barrel body through the support mechanism and the bearing mechanism respectively to drive its movement.

[0012] Further, the support mechanism includes a connection seat, which is adapted to the upper opening of the extension barrel body. The connection seat is fixedly installed in the middle of the support base. A number of moving cavities are opened at equal intervals on the side end of the connection seat. An active part is arranged in each moving cavity. The active part includes a support block, a tension spring and a seal. The support block is slidably assembled in the moving cavity, and a number of seals are connected between the support block and the inner wall of the moving cavity. The inner end of the support block is provided with the seal, which is adapted to the moving cavity. A connecting pipe is arranged inside the connection seat. The connecting pipe is communicated with the inner ends of each moving cavity. An inlet valve and an outlet valve are respectively arranged at both ends of the connecting pipe. The inlet valve is used to input high-pressure fluid into the connecting pipe. The high-pressure fluid is used to push the support block to move horizontally. After the support block moves outward, it can contact the bottom surface of the strengthening edge.

[0013] Further, a number of lifting lugs are arranged in an array at the top end of the support base. A through hole is opened in the middle of the support base, which penetrates to the bottom surface of the connection seat, and the height of the connection seat is greater than the height of the strengthening edge.

[0014] Further, the bearing mechanism includes a bearing block and a telescopic cylinder. The bearing block is rotatably installed at the bottom end of the support frame. An adjusting seat is connected to the outer side of the upper part of the bearing block. The fixed end of the telescopic cylinder is hinged to the support frame, and the piston end of the telescopic cylinder is hinged to the adjusting seat. The movement of the piston rod of the telescopic cylinder can drive the bearing block to make a rotational movement.

[0015] Furthermore, the number of the support frames is four groups. A first arc-shaped frame is connected between the two support frames on the left side, and a second arc-shaped frame is connected between the two support frames on the right side. The first arc-shaped frame and the second arc-shaped frame correspond to the position of the assembly joint. Accommodating grooves are formed on the inner sides of the first arc-shaped frame and the second arc-shaped frame, and air bags are embedded in the accommodating grooves. The air bags are connected to an external air source through air pipes.

[0016] Furthermore, the support frames are movably arranged at the side ends of the support seats; first fixing frames and second fixing frames are respectively and fixedly arranged at the left and right ends of the support seats. The first fixing frames and the second fixing frames are adapted to the outer walls of the barrel-shaped high-rise barrels. Chute grooves are formed at the bottoms of the first fixing frames and the second fixing frames. The two support frames on the left side are slidably assembled in the chute grooves of the first fixing frames, and the two support frames on the right side are slidably assembled in the chute grooves of the second fixing frames. Arc-shaped racks are arranged on the inner walls of the chute grooves of the first fixing frames and the second fixing frames. Gears are rotatably arranged on one side of each support frame close to the rack. The gears are meshed with the corresponding racks. Motors are arranged at the tops of the support frames. The output shafts of the motors are in transmission connection with the gears to drive the support frames to move along the racks; both ends of the first arc-shaped frame are connected to the first fixing frames through first connecting rods, and both ends of the second arc-shaped frame are connected to the second fixing frames through second connecting rods. First sliding openings adapted to the first arc-shaped frame are formed on the inner end faces of the two support frames on the left side, so as to be slidably connected with the first arc-shaped frame; second sliding openings adapted to the second arc-shaped frame are formed on the inner end faces of the two support frames on the right side, so as to be slidably connected with the second arc-shaped frame.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. Precise positioning and stable connection: The lower part of the guiding frame is in an isosceles trapezoid shape and is adapted to the cavity of the barrel-shaped foundation structure, and can be clamped into the cavity of the barrel-shaped foundation structure to ensure that the high-rise part is accurately aligned with the barrel-shaped foundation structure, avoiding deviation. Without a positioning system, the defect that the elevation of the barrel-shaped foundation structure at the closing part is underwater and cannot be visually observed during installation in the prior art is solved. Moreover, the guiding frame can enhance the structural strength, limit the displacement of the barrel-shaped high-rise barrel in a specific direction, prevent shaking caused by water flow force, and the barrel-shaped high-rise barrel and the barrel-shaped foundation structure are connected into a whole by pouring concrete, and can resist horizontal force and vertical force, improving the overall stability of the closed structure at the cofferdam closing opening.

[0019] 2. Efficient construction: The steps of the construction method are clear. From installing the barrel-shaped foundation structure, prefabricating the barrel-shaped high-rise barrel, connecting the guiding frame, to hoisting and installing the barrel-shaped high-rise barrel and pouring concrete, each link is closely connected, ensuring the high efficiency and accuracy of the construction.

[0020] 3. Flexible lifting assembly: The support mechanism and the load-bearing mechanism of the lifting assembly can be respectively connected to the upper and lower ends of the extended barrel body to ensure the stability of the lifting process. The support mechanism uses high-pressure fluid to push the support block against the reinforcing edge, and the load-bearing mechanism drives the load-bearing block to rotate and contact the bottom end of the extended barrel body through the telescopic cylinder, realizing stable lifting. Moreover, the lifting assembly can also resist the impact of water flow, limit the small displacement of the extended barrel body, and avoid the structural instability before the concrete is poured and solidified. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the closed structure of the cofferdam closure opening of the barrel foundation structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the extended barrel body of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the lifting assembly of the present invention;

[0024] Figure 4 It is a schematic diagram of the working state of the load-bearing mechanism of the present invention;

[0025] Figure 5 It is a schematic diagram of the connection state between the lifting assembly and the extended barrel body of the present invention;

[0026] Figure 6 It is a schematic diagram of the support mechanism of the present invention;

[0027] Figure 7 It is the internal structure diagram of the first fixing frame of the present invention.

[0028] In the figure, barrel foundation structure - 1, guide frame - 2, extended barrel body - 3, reinforcing edge - 4, groove - 5, guide wheel - 6, support seat - 7, connection seat - 9, moving cavity - 10, support block - 11, tension spring - 12, seal - 13, connecting pipe - 14, lifting lug - 15, through - hole - 16, load - bearing block - 17, telescopic cylinder - 18, adjusting seat - 19, first arc - shaped frame - 20, second arc - shaped frame - 21, airbag - 22, support frame - 23, first fixing frame - 25, second fixing frame - 26, rack - 27, gear - 28, motor - 29, first connecting rod - 32, second connecting rod - 33. Detailed Embodiment

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] AsFigure 1 and Figure 2 As shown in Figure 2 , the closure structure of the cofferdam joint of the bucket foundation structure includes a bucket foundation structure 1, several guide frames 2 and an extension barrel 3. The several guide frames 2 are installed at the bottom of the extension barrel 3. The lower part of the guide frame 2 is in an isosceles trapezoid structure and extends out of the bottom of the extension barrel 3. The lower part of the guide frame 2 is adapted to the cavity of the bucket foundation structure 1. The bucket foundation structure 1 is installed at the joint. When the extension barrel 3 is installed on the bucket foundation structure 1, the guide frame 2 can be clamped into the cavity of the bucket foundation structure 1. The extension barrel 3 and the bucket foundation structure 1 are connected into a whole by pouring concrete, which can resist horizontal and vertical forces.

[0031] In this embodiment, a reinforcing edge 4 is formed by the inward extension of the upper opening edge of the extension barrel 3. The reinforcing edge 4 enhances the structural strength. The guide frame 2 is installed on the extension barrel 3 by bolts. Grooves 5 are opened at the outer ends of both inclined surfaces of the guide frame 2. Several guide wheels 6 are rotatably arranged at equal intervals in the grooves 5. Both the guide wheels 6 and the guide frame 2 are made of steel. A buffer pad is arranged at the bottom end of the guide frame 2 to avoid damage caused by collision with the bucket foundation structure 1 during the installation process, and reduce the impact force through elastic buffering, thereby protecting the bucket foundation structure 1 from damage. The design of the guide wheels 6 can avoid the wear of the upper edge of the bucket foundation structure 1 caused by rigid contact guidance between the guide frame 2 and the bucket foundation structure 1.

[0032] The guide frame 2 can ensure the precise alignment between the extended part and the bucket foundation structure 1, avoiding deviation. Through the design of the guide frame 2 and the guide wheels 6, a clear positioning and guidance are provided for the extended part, which can limit the displacement of the extension barrel 3 in a specific direction. At the same time, when the extension barrel 3 is installed on the bucket foundation structure 1, the guide frame 2 can be completely clamped in the cavity of the bucket foundation structure 1, thereby fixing the extended part and avoiding the sway caused by water flow force.

[0033] Please refer to Figures 1 to 7 As shown in Figures 1 to 7 , this embodiment also provides a construction method for the closure structure of the cofferdam joint of the bucket foundation structure, including the following steps:

[0034] S1. Install the bucket foundation structure 1, fill the backfill sand into its cavity to a level 1 m below the upper edge and level it, and prefabricate the extension barrel 3 according to the scale of the installed bucket foundation structure 1;

[0035] S2. Manufacture a suitable guide frame 2 and connect the prefabricated extension barrel 3 and the guide frame 2 into a whole by bolts;

[0036] S3. After hoisting the extension barrel body 3 above the barrel foundation structure 1, lower and install it onto the barrel foundation structure 1. During the lowering and installation process, it is positioned by sliding into the barrel foundation structure 1 through the guiding frame 2 and getting stuck in its cavity. Among them, the hoisting operation of the extension barrel body 3 is realized by a crane ship and a hoisting assembly. The hoisting assembly is used to connect the extension barrel body 3. The hoisting assembly includes a support base 7 and a support frame 23. The support base 7 is used to connect with the crane ship. A number of support frames 23 are arranged at equal intervals on the side end of the support base 7. A bearing mechanism is movably arranged at the bottom end of each support frame 23. A support mechanism is arranged at the bottom end of the support base 7. The support mechanism can extend into the cavity of the extension barrel body 3, and the movable part in the support mechanism can extend out to abut against the bottom of the reinforcing edge 4. The bearing mechanism can rotate to abut against the bottom end of the extension barrel body 3, so as to connect the upper and lower ends of the extension barrel body 3 respectively through the support mechanism and the bearing mechanism to drive its movement.

[0037] S4. Pour concrete to a level of 1 m above the assembly joint. After the concrete reaches the designed strength, connect the extension barrel body 3 and the barrel foundation structure 1 into an integral whole.

[0038] In this embodiment, the support mechanism includes a connection seat 9. The connection seat 9 is adapted to the upper end opening of the extension barrel body 3. The connection seat 9 is fixedly installed in the middle of the support base 7. A number of moving cavities 10 are arranged at equal intervals on the side end of the connection seat 9. An activity part is arranged in each moving cavity 10. The activity part includes a support block 11, a tension spring 12 and a seal 13. The support block 11 is slidably assembled in the moving cavity 10, and a number of seals 13 are connected between the support block 11 and the inner wall of the moving cavity 10. A seal 13 is arranged at the inner end of the support block 11. The seal 13 is adapted to the moving cavity 10. A connection pipe 14 is arranged inside the connection seat 9. The connection pipe 14 is communicated with the inner ends of each moving cavity 10. An inlet valve and an outlet valve are respectively arranged at both ends of the connection pipe 14. The inlet valve is used to input high-pressure fluid into the connection pipe 14. The high-pressure fluid is used to push the support block 11 to move horizontally. After the support block 11 moves outward, it can contact the bottom surface of the reinforcing edge 4. A number of lifting lugs 15 are arranged in a row at the top end of the support base 7. A through hole 16 is opened in the middle of the support base 7. The through hole 16 penetrates to the bottom surface of the connection seat 9. The design of the through hole 16 enables concrete to be poured through the through hole 16 without removing the hoisting equipment.

[0039] In this embodiment, the bearing mechanism includes a bearing block 17 and a telescopic cylinder 18. The bearing block 17 is rotatably installed at the bottom end of the support frame 23. An adjusting seat 19 is connected to the outer side of the upper part of the bearing block 17. The fixed end of the telescopic cylinder 18 is hinged and installed on the support frame 23. The piston end of the telescopic cylinder 18 is hinged and connected to the adjusting seat 19. The movement of the piston rod of the telescopic cylinder 18 can drive the bearing block 17 to make a rotational movement.

[0040] When hoisting, first, the hoisting ship is installed and connected with the lifting lug 15 of the support base 7, then the support base 7 is driven to move above the barrel extension 3, and then it is driven to descend, so that the connecting seat 9 enters the cavity of the barrel extension 3 through the upper opening of the barrel extension 3. At the same time, the support frame 23 moves downward along the outside of the barrel extension 3, so that the bearing block 17 moves below the bottom end of the barrel extension 3. At this time, high-pressure fluid is introduced into the connecting pipe 14. After the high-pressure fluid enters the connecting pipe 14, it will push the support block 11 to move outward, so that the support block 11 protrudes outward (when unloading, the outlet valve is opened to relieve pressure, and the tension spring 12 drives the support block 11 to move outward and reset to discharge the high-pressure fluid). At the same time, the telescopic cylinder 18 extends to drive the bearing block 17 to rotate from the vertical state to the horizontal state, and then the hoisting ship drives the connecting seat 9 to move upward, so that the support block 11 abuts against the reinforcing edge 4, and the bearing block 17 contacts the bottom end of the barrel extension 3, so as to realize the contact connection between the upper and lower parts of the barrel extension 3 and ensure the stability during hoisting. Finally, the hoisting ship continues to hoist, and the barrel extension 3 can be lifted and transported.

[0041] When the barrel extension 3 moves above the barrel foundation structure 1 and the guide frame 2 has been initially clamped into the cavity of the barrel foundation structure 1, at this time, the telescopic cylinder 18 drives the bearing block 17 to reset to the vertical state, and then continues to hoist and descend, so that the barrel extension 3 is completely connected to the barrel foundation structure 1. At this time, the bearing block 17 will descend to contact the outer wall of the barrel foundation structure 1, so as to be limited and fixed through the support frame 23 and the bearing block 17, assist the connection between the barrel foundation structure 1 and the barrel extension 3, and prevent the installed barrel extension 3 from being displaced due to water flow force.

[0042] In this embodiment, the number of the support frames 23 is four groups. A first arc-shaped frame 20 is connected between the two left support frames 23, and a second arc-shaped frame 21 is connected between the two right support frames 23. The first arc-shaped frame 20 and the second arc-shaped frame 21 correspond to the position of the assembly joint, and accommodation grooves are formed on the inner sides of the first arc-shaped frame 20 and the second arc-shaped frame 21. Air bags 22 are embedded in the accommodation grooves, and the air bags 22 are connected to an external air source through air pipes;

[0043] After the barrel extension 3 and the barrel foundation structure 1 are installed, when pouring concrete, the hoisting ship drives the support base 7 to descend, so that the first arc-shaped frame 20 and the second arc-shaped frame 21 move to the assembly joint between the barrel extension 3 and the barrel foundation structure 1, and then the external air source supplies air into the air bags 22, so that the air bags 22 expand to block the assembly joint, and the first arc-shaped frame 20 and the second arc-shaped frame 21 are located in the water flow impact direction, so as to prevent water flow impact from seeping in through the assembly joint and affecting the solidification of concrete.

[0044] In this embodiment, the support frame 23 is movably arranged on the side end of the support base 7; the first fixing frame 25 and the second fixing frame 26 are respectively fixedly arranged at the left and right ends of the support base 7, and the first fixing frame 25 and the second fixing frame 26 are adapted to the outer wall of the barrel extension body 3. The bottom ends of the first fixing frame 25 and the second fixing frame 26 are both provided with chutes. The two groups of support frames 23 on the left side are slidably assembled in the chute of the first fixing frame 25, and the two groups of support frames 23 on the right side are slidably assembled in the chute of the second fixing frame 26. The inner walls of the chutes of the first fixing frame 25 and the second fixing frame 26 are both provided with arc-shaped racks 27. A gear 28 is rotatably arranged on one side of each support frame 23 close to the rack 27, and the gear 28 is meshed with the corresponding rack 27. A motor 29 is arranged on the top of each support frame 23, and the output shaft of the motor 29 is in transmission connection with the gear 28 for driving the support frame 23 to move along the rack 27; both ends of the first arc-shaped frame 20 are connected to the first fixing frame 25 through the first connecting rod 32, and both ends of the second arc-shaped frame 21 are connected to the second fixing frame 26 through the second connecting rod 33. First sliding openings adapted to the first arc-shaped frame 20 are arranged on the inner end faces of the two groups of support frames 23 on the left side, so as to be slidably connected with the first arc-shaped frame 20; second sliding openings adapted to the second arc-shaped frame 21 are arranged on the inner end faces of the two groups of support frames 23 on the right side, so as to be slidably connected with the second arc-shaped frame 21, so that the support frame 23 will not affect the first arc-shaped frame 20 or the second arc-shaped frame 21 when moving;

[0045] The support frame 23 is slidably installed on the first fixing frame 25 or the second fixing frame 26, so that the contact points of the bearing mechanism can be flexibly adjusted according to the surface curvature or installation angle of the bucket foundation structure 1, or for the slight ellipticity of the barrel caused by transportation or manufacturing errors, the distance between the two support frames 23 can be adjusted to actively compensate for the shape deviation and ensure the reliability of the bottom bearing mechanism; during adjustment, the motor 29 drives the gear 28 to rotate, and the rotation of the gear 28 will drive the movement on the rack 27, thereby driving the support frame 23 to move along the first fixing frame 25 or the second fixing frame 26. By the forward and reverse rotation of the motor 29, the support frame 23 is driven to move back and forth, and then the position of the bottom bearing mechanism is adjusted; at the same time, due to the movable design of the support frame 23, after the barrel extension body 3 and the bucket foundation structure 1 are installed, when waiting for concrete pouring, the support frame 23 can move to the water flow impact direction. The water flow impact can be resisted through the support frames 23 on both sides, and the small displacement of the barrel extension body 3 can be restricted, avoiding the structural instability before the concrete pouring solidifies.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A construction method for a closed structure of a barrel-type foundation embankment, characterized in that: It comprises a barrel-type foundation structure, a plurality of guide frames and a heightening barrel body, wherein the plurality of guide frames are installed at the bottom of the heightening barrel body, the lower part of the guide frame is an isosceles trapezoidal structure and extends out of the bottom of the heightening barrel body, and the lower part of the guide frame is adapted to the cavity of the barrel-type foundation structure; when the heightening barrel body is installed on the barrel-type foundation structure, the guide frame can be inserted into the cavity of the barrel-type foundation structure, the heightening barrel body and the barrel-type foundation structure are connected as a whole by pouring concrete, and the upper end opening edge of the heightening barrel body extends inward to form a reinforcing edge; The method comprises the following steps: S1, installing a barrel-type foundation structure, and filling the cavity thereof with backfill sand to level it at a distance of 1m from the upper edge, and prefabricating a barrel body according to the scale of the installed barrel-type foundation structure; S2. Make an appropriate guide frame, and connect the prefabricated height-connecting barrel and the guide frame into a whole by bolts; S3, after hoisting the elevated barrel body to the top of the barrel-type foundation structure, lower it to be installed on the barrel-type foundation structure, and during the lowering and installation process, the guide frame slides into the barrel-type foundation structure and is stuck in its cavity to achieve positioning; S4. Pour concrete to level it at least 1m above the assembly joint. When the concrete reaches the designed strength, connect the barrel body and the barrel foundation structure into a whole; The lifting operation of the heightening barrel body in step S3 is realized by using a lifting ship and a lifting assembly, wherein the lifting assembly is used to connect the heightening barrel body, and the lifting assembly includes a support seat and a support frame, wherein the support seat is used to connect with the lifting ship, and a plurality of support frames are evenly spaced at the side ends of the support seat, and a bearing mechanism is movably provided at the bottom end of each support frame, and a supporting mechanism is provided at the bottom end of the support seat, wherein the supporting mechanism can be extended into the cavity of the heightening barrel body, and the movable parts in the supporting mechanism can be extended to abut against the bottom of the reinforcing edge, and the bearing mechanism can be rotated to abut against the bottom end of the heightening barrel body, thereby respectively connecting the upper and lower ends of the heightening barrel body through the supporting mechanism and the bearing mechanism to drive it to move; The supporting mechanism comprises a connecting seat, which is matched with the upper end opening of the height-connected barrel body, and the connecting seat is fixedly installed in the middle part of the supporting seat, and a plurality of movable cavities are evenly spaced at the side ends of the connecting seat, and movable parts are arranged in each of the movable cavities, and a plurality of lifting ears are arranged on the top end of the supporting seat, and a through opening is opened in the middle part of the supporting seat, and the through opening passes through to the bottom surface of the connecting seat, and the bearing mechanism comprises a bearing block and a telescopic cylinder, and the bearing block is rotatably installed on the bottom end of the supporting frame, and an adjusting seat is connected to the outer side of the upper part of the bearing block, and the fixed end of the telescopic cylinder is hingedly installed on the supporting frame, and the piston end of the telescopic cylinder is hingedly connected to the adjusting seat, and the piston rod of the telescopic cylinder can drive the bearing block to rotate, and the number of the supporting frames is four groups. The support frame is movably arranged at the side end of the support seat; the left and right ends of the support seat are respectively fixed with a first fixed frame and a second fixed frame, the first fixed frame and the second fixed frame are adapted to the outer wall of the high barrel body, and the bottom ends of the first fixed frame and the second fixed frame are provided with a slide groove, the two groups of support frames on the left side are slidably assembled in the slide groove of the first fixed frame, and the two groups of support frames on the right side are slidably assembled in the slide groove of the second fixed frame, and the inner walls of the slide grooves of the first fixed frame and the second fixed frame are provided with arc-shaped racks, and a gear is rotatably arranged on one side of the upper part of each support frame close to the rack, the gear is meshed with the corresponding rack, and a motor is arranged on the top of each support frame, and the output shaft of the motor is connected to the gear transmission to drive the support frame to move along the rack.

2. The construction method of the barrel-type foundation structure embankment closing mouth closed structure according to claim 1 is characterized by: Grooves are provided at the outer ends of the inclined surfaces on both sides of the guide frame, and a plurality of guide wheels are rotatably arranged in the grooves at equal intervals. The guide wheels and the guide frame are both made of steel, and a buffer pad is arranged at the bottom end of the guide frame.

3. The construction method of the barrel-type foundation structure embankment closing mouth closed structure according to claim 1 is characterized by: The movable component includes a support block, a tension spring and a seal. The support block is slidably assembled in the moving cavity, and a plurality of seals are connected between the support block and the inner wall of the moving cavity. The seal is arranged at the inner end of the support block, and the seal is adapted to the moving cavity. A connecting pipe is arranged inside the connecting seat, and the connecting pipe is connected to the inner end of each moving cavity. An inlet valve and an outlet valve are respectively arranged at both ends of the connecting pipe. The inlet valve is used to input high-pressure fluid into the connecting pipe, and the high-pressure fluid is used to push the support block to move horizontally. After the support block moves outward, it can contact the bottom surface of the reinforced edge.

4. The construction method of the barrel-type foundation structure embankment closing mouth closed structure according to claim 1 is characterized by: A first arc frame is connected between the two groups of support frames on the left side, and a second arc frame is connected between the two groups of support frames on the right side. The first arc frame and the second arc frame correspond to the positions of the assembling seams, and the inner sides of the first arc frame and the second arc frame are both provided with accommodating grooves, and airbags are embedded in the accommodating grooves, and the airbags are connected to an external air source through an air pipe.

5. The construction method of the barrel-type foundation structure embankment closing mouth closure structure according to claim 4 is characterized by: The two ends of the first arc frame are connected to the first fixed frame through a first connecting rod, and the two ends of the second arc frame are connected to the second fixed frame through a second connecting rod. The inner end surfaces of the two groups of support frames on the left side are both provided with a first sliding opening adapted to the first arc frame, so as to be slidably connected to the first arc frame; the inner end surfaces of the two groups of support frames on the right side are both provided with a second sliding opening adapted to the second arc frame, so as to be slidably connected to the second arc frame.

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