SMW method pile retaining structure plugging device

Abstract

The present invention provides a plugging device for an SMW construction method pile retaining structure, comprising a plugging plate, both ends of the plugging plate are provided with supporting retaining grooves corresponding thereto, a pressing support is provided between the supporting retaining groove and the plugging plate; a drainage hole and a grouting hole are provided on the plugging plate, a drainage pipe is mounted on the drainage hole, a grouting pipe locking mechanism is provided inside the grouting hole, and a grouting pipe assembly is provided inside the grouting pipe locking mechanism; a sealing ring is fixedly provided on the side of the plugging plate away from the drainage pipe; in the present invention, two supporting retaining grooves are respectively welded and fixed to the outer sides of the steel sections in the SMW construction method piles on both sides of the leakage of the retaining structure, the supporting retaining grooves provide support for the retaining bars, and by screwing the tightening bolts, the ends of the tightening bolts are pressed against the plugging plate so that the sealing ring and the inner wall of the retaining structure are tightly pressed and sealed, thereby avoiding water leakage and improving the plugging effect, and the leakage water in the plugging plate can be led away through the drainage pipe, so that the working surface is kept dry and tidy.

Description

Technical Field

[0001] The invention belongs to the technical field of SMW method piles, and in particular relates to a leakage plugging device for an SMW method pile enclosure structure. Background Art

[0002] With the development of my country's economy and the accelerated urbanization process, a boom in tunnel construction has emerged in major cities, and the open-cut method is the most common type of tunnel construction method. Among the open-cut methods, SMW piles have been widely used due to their low cost, fast construction speed, good impermeability, high rigidity, and good support effect. The risk of water leakage in the SMW pile retaining structure increases linearly with the depth of the foundation pit. As long as leakage occurs in the tunnel foundation pit, it will restrict the construction period, affect the normal progress of the project, and increase the construction cost. In severe cases, the foundation pit will collapse, leading to road collapse, pipeline leakage, house collapse, and even casualties.

[0003] In the prior art, a Chinese invention patent application document with application publication number CN110485451A discloses a waterproof plugging structure used in conjunction with an SMW method pile retaining wall, which adopts an outer layer of cement-soil mixing piles arranged on the SMW method pile retaining wall to form an outer water-stop curtain, and a corresponding plugging steel plate is arranged inside the SMW method pile retaining wall, and the two ends of the plugging steel plate are respectively welded to the outer sides of the two corresponding steel sections. The construction cost of the mixing pile is high and the verticality is difficult to control. Especially in the case of a long pile body, the lower pile is prone to separation from the pile, resulting in water leakage, and the sealing steel plate cannot be pressed against the inner wall of the retaining wall, which easily produces a gap and causes water leakage.

[0004] Therefore, it is necessary to design a SMW pile retaining structure plugging device that can seal the leakage tightly, improve the plugging effect, and use drainage and slurry replacement to plug the leakage and stop water in order to solve the current technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a SMW method pile retaining structure plugging device which can seal the leakage tightly, improve the plugging effect, and plug the leakage and stop water by drainage and slurry replacement.

[0006] The technical solution of the present invention is: a plugging device for a SMW method pile retaining structure, comprising a plugging plate, both ends of the plugging plate are provided with supporting retaining grooves corresponding thereto, a pressure support is provided between the supporting retaining groove and the plugging plate; the pressure support has a retaining bar arranged on the inner side of the supporting retaining groove, and the retaining bar is evenly provided with tightening bolts threadedly connected thereto, and the end of the tightening bolt is against the outer side of the plugging plate; a drainage hole and a grouting hole are opened on the plugging plate, a drainage pipe is equipped on the drainage hole, a drainage valve is provided on the drainage pipe, a pressure gauge is provided on the drainage pipe between the drainage valve and the drainage hole, a grouting pipe locking mechanism is provided inside the grouting hole, and a grouting pipe assembly is provided inside the grouting pipe locking mechanism; a sealing ring is fixedly provided on the side of the plugging plate away from the drainage pipe.

[0007] Furthermore, an anti-slip support member is arranged between the ends of the two baffles; the anti-slip support member has a middle support rod, outer support rods are slidably arranged on the outer sides of both ends of the middle support rod, guide column slides are opened at both ends of the middle support rod, a guide column is fixedly arranged on the side of one end of the outer support rod, and a support connecting seat is rotatably arranged on the other end of the outer support rod, the guide column is slidably arranged inside the guide column slide, a baffle is arranged at the end of the guide column, one end of the support connecting seat is fixedly connected to the corresponding baffle, and a support locking bolt for locking or releasing it with the outer support rod is arranged at the end of the middle support rod.

[0008] Furthermore, the grouting pipe assembly comprises a grouting pipe main body, one end of the grouting pipe main body comprises a cone head, and the other end of the grouting pipe main body is provided with a grouting pipe joint connected thereto, a sealing support ring is fixedly provided on the outer side of the grouting pipe main body, a grouting sealing ring is provided on the side of the sealing support ring close to the cone head, and slurry outlet holes are evenly opened on the outer side of the grouting pipe main body between the sealing support ring and the cone head; the grouting pipe locking mechanism comprises a support pipe seat, one end of the support pipe seat comprises a threaded connecting pipe threadedly connected to the grouting hole, a sealing step matching the grouting sealing ring is provided inside the support pipe seat, a locking arm is provided in a circumferential array at one end of the support pipe seat away from the threaded connecting pipe, the locking arm is rotatably arranged at the end of the support pipe seat through a hinge seat, and a locking arm driving assembly is provided on the outer side of the support pipe seat, the elastic force of the locking arm driving assembly acts on one end of the locking arm to make the other end of the locking arm elastically resist against the outer side of the grouting pipe assembly.

[0009] Furthermore, the locking arm driving assembly comprises a fixed ring fixedly arranged on the outside of the support tube seat and a sliding ring slidably arranged on the outside of the support tube seat, a transmission connecting rod is hinged on one side of the sliding ring, an end of the transmission connecting rod facing away from the sliding ring is hinged to one end of the locking arm, a sliding rod is arranged in a circular array on one side of the fixed ring close to the sliding ring, the sliding rod slides through the sliding ring, a baffle is fixedly arranged on the end of the sliding rod, and a spring is mounted on the outside of the sliding rod between the baffle and the sliding ring.

[0010] Furthermore, an inner support rod is provided inside the grouting pipe body along its axis, one end of the inner support rod is fixedly connected to the inner side of the cone head, and the inside of the grouting pipe body is provided with sealing strips corresponding to the slurry outlet holes in a circumferential array, and supporting connecting rods are evenly provided between the sealing strips and the inner support rod along the axial direction of the grouting pipe body, one end of the supporting connecting rod is hinged to the sealing strip, and the other end of the supporting connecting rod is hinged to the inner support rod, and one end of the grouting pipe body is connected to a push-pull driving assembly, and the push-pull driving assembly drives the supporting connecting rod to swing back and forth so that the sealing strip closes or opens the slurry outlet hole.

[0011] Furthermore, the push-pull drive assembly comprises a support sleeve slidably mounted on the outside of the free end of the inner support rod, a rotating support seat is fixedly arranged on the end of the support sleeve facing away from the inner support rod, a rotating connecting block is rotatably arranged inside the rotating support seat, a push-pull screw threadedly connected to the end of the grouting pipe body is fixedly arranged on the rotating connecting block, and a handwheel is fixedly arranged on the end of the push-pull screw facing away from the rotating connecting block; a pull rod is hinged on the support connecting rod located on the sealing strip close to one end of the support sleeve, and the pull rod is hinged to the end of the support sleeve.

[0012] Furthermore, a sliding branch pipe is provided on the outer sliding sleeve of the support sleeve, and support plates are provided at both ends of the sliding branch pipe in a circumferential array, and one end of the support plate away from the sliding branch pipe is fixedly connected to the inner wall of the grouting pipe body.

[0013] Furthermore, the inner side of the sliding branch pipe is provided with guide grooves in a circumferential array, and the outer side of the supporting sleeve is fixedly provided with a slide bar matching the guide grooves, and the slide bar is slidably arranged inside the guide grooves.

[0014] Furthermore, a sealing pad is fixedly provided on one side of the sealing strip close to the slurry outlet, and the sealing pad is a foamed silicone strip.

[0015] Furthermore, the supporting retaining groove is provided with an avoidance groove corresponding to the tightening bolt, a sliding seat is rotatably provided on one end of the tightening bolt close to the blocking plate, and a sliding groove matching the sliding seat is provided on the blocking plate.

[0016] Beneficial effects of the present invention:

[0017] (1) In the present invention, two support retaining grooves are respectively welded and fixed to the outer sides of the steel sections in the SMW piles on both sides of the leakage point of the enclosure structure. The support retaining grooves provide support for the retaining bars. By screwing the tightening bolts, the ends of the tightening bolts are pressed against the sealing plate so that the sealing ring and the inner wall of the enclosure structure are tightly sealed to avoid water leakage and improve the plugging effect. The leakage water in the sealing plate can be drained away through the drainage pipe, so that the working surface remains dry and clean.

[0018] (2) The position of the grouting hole on the plugging plate can be adjusted according to the leakage point. The grouting pipe assembly is fixed in the grouting hole through the grouting pipe locking mechanism. The plugging material is injected into the leakage point and the interior of the surrounding structure through the grouting pipe assembly, and the plugging and water stopping effect is fast;

[0019] (3) Except for the welding fixation between the supporting retaining groove and the steel section, other parts can be disassembled and reused repeatedly, reducing the cost of leak plugging construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the SMW method pile retaining structure plugging device in the present invention.

[0021] Figure 2 This is one of the structural schematic diagrams of the sealing plate and the supporting retaining groove in the present invention.

[0022] Figure 3 This is the second structural schematic diagram of the blocking plate and the supporting retaining groove in the present invention.

[0023] Figure 4 It is a schematic structural diagram of the anti-slip support member in the present invention.

[0024] Figure 5 It is a schematic structural diagram of the pressing support member in the present invention.

[0025] Figure 6 This is one of the structural schematic diagrams of the grouting pipe locking mechanism in the present invention.

[0026] Figure 7 This is the second structural schematic diagram of the grouting pipe locking mechanism in the present invention.

[0027] Figure 8 It is a structural schematic diagram of the grouting pipe assembly in the present invention.

[0028] Fig. 9 for Figure 8Cross-section view at AA in the middle.

[0029] Fig.10 for Fig. 9 A partial enlarged view of point B in the middle.

[0030] Fig.11 for Fig. 9 A partial enlarged view of point C in the middle.

[0031] Fig.12 for Fig. 9 A partial enlarged view of point D in the middle.

[0032] Fig.13 It is a structural schematic diagram of the sliding connection between the sliding branch pipe and the supporting sleeve in the present invention. DETAILED DESCRIPTION

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is not intended to be any limitation on the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limitations.

[0034] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] like Figures 1 to 5As shown, the SMW method pile retaining structure plugging device comprises a plugging plate 1, both ends of the plugging plate 1 are provided with supporting retaining grooves 2 corresponding thereto, the cross section of the supporting retaining grooves 2 is "L" shaped, the bottom ends of the two supporting retaining grooves 2 are fixedly connected together by a bottom plate 21, and a pressing support member 3 is provided between the supporting retaining grooves 2 and the plugging plate 1; the pressing support member 3 has a retaining bar 31 provided on the inner side of the supporting retaining groove 2, and the retaining bar 31 is evenly provided with jacking bolts 32 threadedly connected thereto, and the ends of the jacking bolts 32 are connected to the plugging plate 1 The outer side of the plugging plate 1 is abutted against each other; a drainage hole 13 and a grouting hole 12 are opened on the sealing plate 1, the drainage hole 13 is equipped with a drainage pipe 7, a drainage valve 71 is provided on the drainage pipe 7, a pressure gauge 72 is provided on the drainage pipe 7 between the drainage valve 71 and the drainage hole 13, a grouting pipe locking mechanism 4 is provided inside the grouting hole 12, and a grouting pipe assembly 5 is provided inside the grouting pipe locking mechanism 4; a sealing ring 11 is fixedly provided on the side of the plugging plate 1 away from the drainage pipe 7, and the sealing ring 11 is a rectangular sealing ring matching the plugging plate 1.

[0036] In the above embodiment, the two support retaining grooves 2 are respectively welded and fixed to the outer sides of the steel sections in the SMW construction piles on both sides of the leakage of the enclosure structure, and the support retaining grooves 2 provide support for the retaining strips 31. By screwing the tightening bolts 32, the ends of the tightening bolts 32 are pressed against the sealing plate 1, and the sealing ring 11 on the inner side of the sealing plate 1 is tightly pressed against the inner wall of the enclosure structure to prevent water leakage and improve the plugging effect. The leakage water can be led away through the drainage pipe 7 to keep the working surface dry and tidy; the position of the grouting hole 12 on the sealing plate 1 can be adjusted according to the leakage point situation, and the grouting pipe assembly 5 is fixed in the grouting hole 12 through the grouting pipe locking mechanism 4. , the plugging material is injected into the leaking point and the inside of the enclosure structure through the grouting pipe assembly 5, and the plugging and water stopping effect is fast; except for the welding and fixing between the supporting retaining groove 2 and the steel section, other parts can be disassembled and reused repeatedly, thereby reducing the cost of plugging construction; the specific construction plan is that after the plugging device of the SMW pile enclosure structure is installed, the drainage valve 71 is closed to record the reading of the pressure gauge 72, the grouting pipe assembly 5 is connected to the grouting equipment to perform grouting simultaneously, the drainage valve 71 is opened until the drainage pipe 7 flows out a relatively pure slurry, the drainage valve 71 is closed and the grouting is stopped, and after an interval of 12 hours, grouting is performed on the top of the collapsed area to fill the collapsed area.

[0037] In some embodiments, Figure 1 As shown, an anti-slip support member 6 is arranged between the ends of the two baffles 31. After the pressing support member 3 is installed, the anti-slip support member 6 forms a fixed support between the baffles 31 of the two pressing support members 3, which can prevent the anti-slip support member 6 from escaping from the support groove 2 and affecting the stability of the support for the blocking plate 1. At the same time, the anti-slip support member 6 connects the two anti-slip support members 6 together for easy installation and use in pairs.

[0038] As a specific implementation of the anti-slip support member 6, Figure 4 As shown, the anti-slip support member 6 has a middle support rod 61, and outer support rods 62 are slidably arranged on the outer sides of both ends of the middle support rod 61, and guide column slideways 64 are provided at both ends of the middle support rod 61. A guide column 65 is fixedly arranged on the side of one end of the outer support rod 62, and a support connecting seat 63 is rotatably arranged on the other end of the outer support rod 62. The guide column 65 is slidably arranged inside the guide column slideway 64, and a baffle 66 is arranged at the end of the guide column 65. One end of the support connecting seat 63 is fixedly connected to the corresponding baffle bar 31, and a support locking bolt 67 for locking or releasing it with the outer support rod 62 is arranged at the end of the middle support rod 61; when the middle support rod 61 is connected to the outer support rod 62 When the guide post 65 slides to the end of the guide post slide 64 away from the support locking bolt 67, an internal threaded hole matching the locking bolt 67 is opened on the side of the outer support rod 62 corresponding to the support locking bolt 67. After the support locking bolt 67 is connected to the internal threaded hole, the outer support rod 62 and the middle support rod 61 can be locked to form a fixed support between the two blocking bars 31 of the pressure support members 3; when removal is required, the support locking bolt 67 and the outer support rod 62 are first separated, and then the middle support rod 61 is pulled away from the blocking plate 1, and the guide post 65 can slide inside the guide post slide 64 to reserve space for the removal of the pressure support member 3.

[0039] In some embodiments, Figures 6 to 12As shown, the grouting pipe assembly 5 has a grouting pipe body 51, one end of the grouting pipe body 51 has a cone head 512, the other end of the grouting pipe body 51 is provided with a grouting pipe joint 513 connected thereto, a sealing support ring 515 is fixedly provided on the outer side of the grouting pipe body 51, a grouting sealing ring 514 is provided on the side of the sealing support ring 515 close to the cone head 512, the sealing support ring 515 provides support for the grouting sealing ring 514, and slurry outlet holes 511 are evenly opened on the outer side of the grouting pipe body 51 between the sealing support ring 515 and the cone head 512; the grouting pipe locking mechanism 4 has a support pipe seat 41, one end of the support pipe seat 41 has a threaded connecting pipe 411 threadedly connected to the grouting hole 12, the interior of the support pipe seat 41 is provided with a sealing step 412 matched with the grouting sealing ring 514, and the end of the support pipe seat 41 away from the threaded connecting pipe 411 is provided with a locking arm 47 in a circumferential array, and the locking arm 47 is rotated by a hinge seat 49 It is arranged at the end of the support pipe seat 41, and a locking arm driving assembly is arranged on the outer side of the support pipe seat 41. The elastic force of the locking arm driving assembly acts on one end of the locking arm 47 to make the other end of the locking arm 47 elastically resist against the outside of the grouting pipe assembly 5; when the grouting pipe assembly 5 is inserted into the support pipe seat 41 of the grouting pipe locking mechanism 4, the cone head 512 pushes the free end of the locking arm 47 to swing outward, and when the grouting sealing ring 514 resists against the sealing step 412, the sealing between the grouting pipe assembly 5 and the grouting pipe locking mechanism 4 is realized, and the sealing support ring 515 just moves to a position exceeding the free end of the locking arm 47. The locking arm 47 swings inward under the action of the elastic force of the locking arm driving assembly, and the free end of the locking arm 47 resists against the outer side of the sealing support ring 515, forming a blockage for the sealing support ring 515. During the grouting process, the grouting pipe assembly 5 can be prevented from moving inside the grouting pipe locking mechanism 4 and affecting the grouting, thereby ensuring the stability of the grouting pipe assembly 5.

[0040] In some embodiments, the locking arm driving assembly has a fixed ring 42 fixedly arranged on the outside of the support tube seat 41 and a sliding ring 43 slidably arranged on the outside of the support tube seat 41. A transmission link 48 is hinged on one side of the sliding ring 43. An end of the transmission link 48 that is away from the sliding ring 43 is hinged to an end of the locking arm 47. A sliding rod 44 is arranged in a circumferential array on one side of the fixed ring 42 close to the sliding ring 43. The sliding rod 44 slides through the sliding ring 43. A baffle 45 is fixedly arranged on the end of the sliding rod 44. A spring 46 is sleeved on the outside of the sliding rod 44 between the baffle 45 and the sliding ring 43. The spring 46 applies elastic force to the sliding ring 43. The sliding ring 43 is locked by the transmission link 4 8 is connected to the locking arm 47 by transmission, so that the free end of the locking arm 47 has a tendency to swing inward under the action of elastic force. During the process of inserting the grouting pipe assembly 5 into the grouting pipe locking mechanism 4, the free end of the locking arm 47 is pushed to swing outward to compress the spring 46. When the grouting pipe assembly 5 needs to be removed from the grouting pipe locking mechanism 4, the sliding ring 43 is pushed to move away from the fixed ring 42, which can drive the locking arm 47 to swing outward. When the free end of the locking arm 47 swings to a position where it no longer blocks the sealing support ring 515, the sealing support ring 515 is released, and the grouting pipe assembly 5 can be pulled out from the grouting pipe locking mechanism 4.

[0041] In some embodiments, Figures 9 to 12 As shown, an inner support rod 52 is arranged inside the grouting pipe body 51 along its axis, one end of the inner support rod 52 is fixedly connected to the inner side of the cone head 512, and a sealing strip 53 corresponding to the slurry outlet hole 511 is arranged in a circular array inside the grouting pipe body 51, and a supporting connecting rod 54 is evenly arranged between the sealing strip 53 and the inner support rod 52 along the axial direction of the grouting pipe body 51, one end of the supporting connecting rod 54 is hinged to the sealing strip 53, and the other end of the supporting connecting rod 54 is hinged to the inner support rod 52, and one end of the grouting pipe body 51 pushes and pulls a driving component, and the push-pull driving component drives the supporting connecting rod 54 to swing back and forth so that the sealing strip 53 is aligned with the slurry outlet hole 511 Close or open; drive the supporting link 54 to swing through the push-pull driving assembly, so that the sealing strip 53 is pressed against the inner wall of the grouting pipe body 51, and the slurry outlet hole 511 is closed; when the grouting pipe assembly 5 is inserted into the enclosure structure, the slurry outlet hole 511 can be closed, and debris can enter the slurry outlet hole 511 during the insertion process to cause blockage; after the grouting is completed, the slurry outlet hole 511 can be closed to maintain pressure; before grouting, the supporting link 54 is driven by the push-pull driving assembly to swing and reset, so that the sealing strip 53 is separated from the inner wall of the grouting pipe body 51, so that the slurry entering the grouting pipe body 51 can flow out from the slurry outlet hole 511.

[0042] In some embodiments, Fig.10 and 12As shown, the push-pull drive assembly has a support sleeve 56 that is slidably mounted on the outer side of the free end of the inner support rod 52, and a rotating support seat 57 is fixedly provided at one end of the support sleeve 56 that is away from the inner support rod 52. A rotating connecting block 58 is rotatably provided inside the rotating support seat 57, and a push-pull screw 59 that is threadedly connected to the end of the grouting pipe body 51 is fixedly provided on the rotating connecting block 58. A hand wheel 591 is fixedly provided on the end of the push-pull screw 59 that is away from the rotating connecting block 58, which is located on the blocking strip 53 near the support sleeve. A pull rod 55 is hinged on the support connecting rod at one end of 56, and the pull rod 55 is hinged to the end of the support sleeve 56; the push-pull screw 59 is rotated by the hand wheel 591, and the threaded structure between the push-pull screw 59 and the end of the grouting pipe body 51 drives the push-pull screw 59 to move along its axial direction, and the push-pull screw 59 drives the support sleeve 56 to move synchronously. The support sleeve 56 pushes and pulls the support connecting rod 54 through the pull rod 55, driving the support connecting rod 54 to swing, thereby driving the sealing strip 53 to press against or move away from the inner wall of the grouting pipe body 51.

[0043] In some embodiments, Fig.11 and 13 As shown, the outer sliding sleeve of the support sleeve 56 is provided with a sliding branch pipe 516, and both ends of the sliding branch pipe 516 are provided with support plates 517 in a circular array. The end of the support plate 517 away from the sliding branch pipe 516 is fixedly connected to the inner wall of the grouting pipe body 51, and the support plate 517 provides stable support for the sliding branch pipe 516, and the sliding branch pipe 516 provides stable sliding support for the support sleeve 56.

[0044] In some embodiments, Fig.13 As shown, the inner side of the sliding branch tube 516 is provided with a guide groove 5161 in a circular array, and the outer side of the supporting sleeve 56 is fixedly provided with a slide bar 561 matching the guide groove 5161. The slide bar 561 is slidably arranged inside the guide groove 5161. The slide bar 561 cooperates with the guide groove 5161 to avoid relative rotation between the sliding branch tube 516 and the supporting sleeve 56, and at the same time does not affect the sliding of the supporting sleeve 56 inside the sliding branch tube 516.

[0045] In some embodiments, Fig.12 As shown, a sealing pad strip 531 is fixedly provided on one side of the sealing strip 53 close to the slurry outlet hole 511. The sealing pad strip 531 is a foamed silicone strip. When the sealing strip 53 abuts against the inner wall of the grouting pipe body 51, the sealing pad strip 531 abuts against the inner wall of the grouting pipe body 51, thereby improving the sealing effect of the slurry outlet hole 511, and the sealing pad strip 531 will be deformed and embedded into the slurry outlet hole 511, thereby improving the flatness of the outside of the grouting pipe body 51, which is convenient for withdrawal after the construction is completed.

[0046] In some embodiments, an avoidance groove 22 corresponding to the tightening bolt 32 is provided on the support retaining groove 2, and a slide seat 33 is rotatably provided on the end of the tightening bolt 32 close to the blocking plate 1, and a slide groove 14 matching the slide seat 33 is provided on the blocking plate 1; during installation, the slide seat 33 corresponds to the slide groove 14, and the slide seat 33 moves along the slide groove 14, so that the retaining bar 31 enters between the support retaining groove 2 and the blocking plate 1, and when the tightening bolt 32 is rotated, the tightening bolt 32 and the slide seat 33 rotate relative to each other, thereby reducing the wear on the blocking plate 1.

[0047] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0048] The above-mentioned embodiments only express some implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A leak plugging device for SMW pile retaining structure, characterized in that: It includes a blocking plate, both ends of which are provided with supporting retaining grooves corresponding thereto, and a pressing support member is provided between the supporting retaining groove and the blocking plate; The pressure support member has a retaining bar arranged inside the support retaining groove, and the retaining bar is evenly provided with tightening bolts threadedly connected thereto, and the ends of the tightening bolts are against the outer side of the blocking plate; The blocking plate is provided with a drainage hole and a grouting hole, the drainage hole is equipped with a drainage pipe, the drainage pipe is provided with a drainage valve, a pressure gauge is provided on the drainage pipe between the drainage valve and the drainage hole, a grouting pipe locking mechanism is provided inside the grouting hole, and a grouting pipe assembly is provided inside the grouting pipe locking mechanism; A sealing ring is fixedly provided on the side of the blocking plate away from the drainage tube; The grouting pipe assembly comprises a grouting pipe body, one end of the grouting pipe body comprises a cone head, the other end of the grouting pipe body comprises a grouting pipe joint connected thereto, a sealing support ring is fixedly arranged on the outer side of the grouting pipe body, a grouting sealing ring is arranged on the side of the sealing support ring close to the cone head, and grouting holes are evenly opened on the outer side of the grouting pipe body between the sealing support ring and the cone head; The grouting pipe locking mechanism comprises a supporting pipe seat, one end of the supporting pipe seat comprises a threaded connecting pipe threadedly connected to the grouting hole, a sealing step matched with the grouting sealing ring is arranged inside the supporting pipe seat, a locking arm is arranged in a circumferential array at one end of the supporting pipe seat away from the threaded connecting pipe, the locking arm is rotatably arranged at the end of the supporting pipe seat through a hinge seat, a locking arm driving assembly is arranged on the outside of the supporting pipe seat, and the elastic force of the locking arm driving assembly acts on one end of the locking arm to make the other end of the locking arm elastically press against the outside of the grouting pipe assembly; An inner support rod is arranged inside the grouting pipe body along its axis, one end of the inner support rod is fixedly connected to the inner side of the cone head, and sealing strips corresponding to the slurry outlet holes are arranged in a circular array inside the grouting pipe body, and supporting connecting rods are evenly arranged between the sealing strips and the inner support rod along the axial direction of the grouting pipe body, one end of the supporting connecting rod is hinged to the sealing strip, and the other end of the supporting connecting rod is hinged to the inner support rod, and one end of the grouting pipe body is connected to a push-pull driving assembly, and the push-pull driving assembly drives the supporting connecting rod to swing back and forth so that the sealing strip closes or opens the slurry outlet hole.

2. The SMW pile retaining structure plugging device according to claim 1 is characterized in that: An anti-drop support is provided between the ends of the two baffles; The anti-slip support component comprises a middle support rod, outer support rods are slidably arranged on the outer sides of both ends of the middle support rod, guide column slides are opened on both ends of the middle support rod, a guide column is fixedly arranged on the side of one end of the outer support rod, and a support connecting seat is rotatably arranged on the other end of the outer support rod, the guide column is slidably arranged inside the guide column slide, a baffle is arranged at the end of the guide column, one end of the support connecting seat is fixedly connected to the corresponding baffle bar, and a support locking bolt for locking or releasing it with the outer support rod is arranged at the end of the middle support rod.

3. The SMW pile enclosure structure plugging device according to claim 1 is characterized by: The locking arm driving assembly comprises a fixed ring fixedly arranged on the outer side of the support tube seat and a sliding ring slidably arranged on the outer side of the support tube seat, a transmission connecting rod is hinged on one side of the sliding ring, an end of the transmission connecting rod facing away from the sliding ring is hinged to one end of the locking arm, a sliding rod is arranged in a circular array on one side of the fixed ring close to the sliding ring, the sliding rod slides through the sliding ring, a baffle is fixedly arranged on the end of the sliding rod, and a spring is mounted on the outer side of the sliding rod between the baffle and the sliding ring.

4. The SMW pile retaining structure plugging device according to claim 1 is characterized in that: The push-pull drive assembly comprises a support sleeve which is slidably mounted on the outside of the free end of the inner support rod, a rotating support seat is fixedly arranged on the end of the support sleeve which is away from the inner support rod, a rotating connecting block is rotatably arranged inside the rotating support seat, a push-pull screw which is threadedly connected to the end of the grouting pipe body is fixedly arranged on the rotating connecting block, and a hand wheel is fixedly arranged on the end of the push-pull screw which is away from the rotating connecting block; a pull rod is hinged on the support connecting rod located on the sealing strip close to one end of the support sleeve, and the pull rod is hinged to the end of the support sleeve.

5. The SMW pile enclosure structure plugging device according to claim 4 is characterized in that: The outer sliding sleeve of the support sleeve is provided with a sliding branch pipe, and both ends of the sliding branch pipe are provided with support plates in a circumferential array, and one end of the support plate away from the sliding branch pipe is fixedly connected to the inner wall of the grouting pipe body.

6. The SMW pile enclosure structure plugging device according to claim 5 is characterized by: The inner side of the sliding branch pipe is provided with guide grooves in a circumferential array, and the outer side of the supporting sleeve is fixedly provided with a slide bar matching the guide groove, and the slide bar is slidably arranged inside the guide groove.

7. The SMW pile enclosure structure plugging device according to claim 1 is characterized by: A sealing pad is fixedly arranged on one side of the sealing strip close to the slurry outlet hole, and the sealing pad is a foamed silicone strip.

8. The SMW pile enclosure structure plugging device according to claim 1 is characterized by: The supporting retaining groove is provided with an avoidance groove corresponding to the jacking bolt, and a sliding seat is rotatably provided on one end of the jacking bolt close to the blocking plate, and a sliding groove matching the sliding seat is provided on the blocking plate.

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