A device and construction method for quickly removing steel pipe segments at the opening of a tunnel communication passage

Abstract

The present invention relates to the field of tunnel technology, and discloses a device and construction method for quickly removing steel pipe segments at the entrance of a tunnel communication channel, including a supporting device, a clamping device and a transporting device; the supporting device is arranged inside the tunnel, and is used to support the tunnel structure; the clamping device is used to remove the steel pipe segments; and the transporting device is used to transport the removed steel pipe segments out of the tunnel. The present invention can realize the rapid removal of large steel pipe segments at the entrance of the communication channel, and improve the construction efficiency of the communication channel; the present invention adopts a clamping device in conjunction with a jack to realize the removal of the steel pipe segments, replacing the manual removal method using a hand winch, and the construction is safer and more convenient; the present invention can realize the large steel pipe segments in a narrow space in a specified manner through the transporting device, and can realize the requirements of rotating and laying flat, so that the large steel pipe segments can be quickly loaded and transported.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, and in particular to a device and a construction method for quickly removing steel pipe segments at an opening of a tunnel communication passage. Background Art

[0002] With the acceleration of urbanization in my country, subway construction has developed rapidly. At present, shield construction is mainly used for subway section tunnels. Among them, the connection channel is an important evacuation and rescue channel for shield tunnels, and the related construction demand is also increasing. The connection tunnel needs to open a hole on the pipe segment to connect the two section tunnels. It is a weak link in the construction of underground section tunnels by shield method, especially in some areas with poor strata, and the risk is very high. The existing technology will reserve detachable steel pipe segments at the opening position, which will be removed later during the construction of the connection channel. At present, it is often removed manually. Because the steel pipe segment becomes tighter and tighter under the action of radial force, even if the steel pipe segment is designed to be detachable, the actual removal process is still difficult. Generally, it is necessary to use tools such as hand winches and gas welding cutting machines to forcibly break it. The removal efficiency is low and there are certain construction risks. In addition, the weight of the steel pipe segments in some connection channels is heavy, especially for a large steel pipe segment that is a whole piece. It is difficult to remove manually and there is no special removal device.

[0003] In the prior art, the recovery device proposed in the authorization announcement number CN117988901B mainly utilizes a moving mechanism and a grabbing mechanism to disassemble the steel pipe segments in blocks. Due to the multi-axis movement of the grabbing device, a high requirement for the operating space is imposed, which also causes the moving mechanism to be too large and can only move in one direction along the slide rail, making it difficult to quickly recover the steel pipe segments in a narrow space. At the same time, the grabbing mechanism is generally provided with mechanical joints, making it difficult to directly grab and transport a whole large pipe segment. Generally, as mentioned in its technical documents, a block grabbing method needs to be adopted, which limits its scope of use under certain conditions. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the above-mentioned related art at least to a certain extent.

[0005] To this end, the present invention specifically provides the following technical solutions:

[0006] A device for quickly removing steel pipe segments at the opening of a tunnel communication passage, comprising a supporting device, a clamping device and a transporting device;

[0007] The supporting device is arranged inside the tunnel and is used to support the tunnel structure;

[0008] The clamping device is used for removing the steel pipe segment;

[0009] The transport device is used to transport the disassembled steel pipe segments out of the tunnel.

[0010] Preferably, the supporting device comprises a door frame bracket, a supporting platform, a supporting longitudinal beam, a supporting cross beam and a jack;

[0011] At least two door frame brackets are provided, and the two door frame brackets are respectively provided on both sides of the steel pipe segment to be removed, the support platform is fixedly connected between the bottoms of the two door frame brackets, the support longitudinal beam is fixedly connected between the tops of the two door frame brackets, and at least two support cross beams are provided, and the two support cross beams are fixedly installed in parallel on the bottom surface of the support longitudinal beam;

[0012] The clamping device and the transporting device are both movably arranged on the supporting platform;

[0013] The jacks are arranged in two groups, and the two groups of jacks are arranged on the supporting platform and the supporting longitudinal beam respectively. Each group of jacks is provided with at least two jacks, so as to simultaneously push the four side corners of the clamping device to move it toward the steel pipe segment away from the target for removal.

[0014] Preferably, the door frame bracket includes a steel ring pad, a door frame inner support, a door frame column and a door frame crossbeam;

[0015] The steel ring pad is embedded in the inner side of the tunnel, the door frame column and the door frame beam are each provided with two parallel to each other and cross-connected in pairs on the inner side of the steel ring pad, the door frame inner brace is provided with multiple, the inner wall of the steel ring pad is fixedly connected to the door frame column and the door frame beam through multiple door frame inner braces, and the supporting longitudinal beam is connected to the supporting platform and fixedly connected to the corresponding door frame beam.

[0016] Preferably, both ends of the support platform are provided with inclined surfaces extending outside the corresponding door frame bracket.

[0017] Preferably, the clamping device comprises a frame structure, a gripping head and a gripping rod;

[0018] One end of the grab bar is fixedly mounted on the frame structure, and the grab head is fixedly mounted on the other end of the grab bar so as to move towards or away from the steel pipe segment to be removed under the telescopic drive of the grab bar;

[0019] Slide blocks are detachably mounted at the four corners of the top surface of the frame structure, and a slide rail for slidingly nesting the slide blocks is arranged at the bottom end of the supporting crossbeam.

[0020] Preferably, the frame structure includes longitudinal beams, transverse beams, columns and connecting beams;

[0021] At least four longitudinal beams and four transverse beams are provided, wherein two longitudinal beams and two transverse beams are cross-fixedly connected to form a bottom frame, and another two longitudinal beams and transverse beams are cross-fixedly connected to form a top frame;

[0022] At least four of the columns are provided, wherein the four columns are fixedly connected between the bottom frame and the corresponding corners of the top end;

[0023] At least two connecting beams are provided, one of which is fixedly provided between a row of columns close to the steel pipe segment to be removed, and the upper surface of the connecting beam is fixedly connected to the lower surface of the fixed end of the grab bar, and the other connecting beam is fixedly provided between another row of columns, and the side surface of the connecting beam is fixedly connected to the bottom surface of the fixed end of the grab bar;

[0024] Both ends of the bottom frame and the top frame on a side away from the steel pipe segment to be removed are fixedly connected with cantilever beams.

[0025] Preferably, each of the four corners on the top frame is provided with a group of angle steels arranged in parallel, and a gap is left between each group of the angle steels, and the gap is used for placing the slider.

[0026] Preferably, the transport device comprises a base, a rotating platform, an ear seat, a vertical plate, a support plate, a support and a hydraulic telescopic rod;

[0027] The bottom end surface of the support plate has a plurality of vertical rods, the hydraulic telescopic rod is rotatably arranged at the center of the support plate through a ball joint, the rotating pedestal is rotatably installed at one end of the support plate, and the support is fixedly installed at the other end of the support plate;

[0028] The ear seats and the vertical plates are each provided with two, and the two ear seats and the two vertical plates are fixedly mounted on the rotating pedestal;

[0029] The base is composed of three side panels that form an annular package. The cavity formed by the three side panels is consistent with the outer contour of the end of the steel pipe segment. There are multiple bolt holes on the top and bottom ends of the side panels on both sides of the base. The multiple bolt holes at the top are used to fix the base to the lower end of the steel pipe segment to be removed, and the multiple bolt holes at the bottom are used to fix the base to the vertical plate. Rivets are inserted into the two ear seats on both sides of the base respectively, so that the base can rotate around the ear seats.

[0030] Preferably, a plurality of universal wheels are provided, and the plurality of universal wheels are rotatably mounted on the bottom of the frame structure and the bottom end of the vertical pole respectively.

[0031] A construction method for the above-mentioned steel pipe segment rapid removal device at the tunnel communication passage opening comprises the following steps:

[0032] S1. Install support devices on both sides of the opening of the tunnel communication channel;

[0033] S2. Complete the installation of the clamping device outside the tunnel and move it to the supporting platform of the supporting device;

[0034] S3, move the clamping device close to the steel pipe segment and install the grab rod and the grab head, and use the grab head to grab the target steel pipe segment;

[0035] S4. Install the jack and place the top of the jack close to the inner side of the cantilever beam;

[0036] S5, placing the slider into the slide rail, and moving the slider to the gap between the parallel angle steels provided on the upper part of the clamping device, and fixing the slider to the angle steel with bolts;

[0037] S6, add force to the jack, and use the cantilever beam to push the clamping device horizontally and directional to push it open. At this time, the steel pipe segment will be pushed open synchronously to complete the removal of the steel pipe segment;

[0038] S7, move the clamping device and carry the steel pipe segment along the slide rail to the left side of the tunnel, then move the transport device to the top of the support platform, adjust the height and position of the transport device until the lower end of the steel pipe segment is placed in the base, and temporarily fix it with bolts;

[0039] S8. Loosen the gripping head and use the rotating pedestal to rotate the steel pipe segment to a certain angle until the inner side of the steel pipe segment faces one side of the hydraulic telescopic rod. At the same time, extend the hydraulic telescopic rod and adjust the angle so that its end and the steel pipe segment are contracted, so that the steel pipe segment is gradually rotated around the ear seat and laid flat on the upper part of the transport device until the upper end of the steel pipe segment overlaps the support.

[0040] S10, using a transport device to transport the steel pipe segment to a designated location;

[0041] S11. Repeat steps S3 to S10 to complete the removal of the remaining steel pipe segments.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] The present invention can realize the rapid dismantling of large steel pipe segments at the opening of the communication channel, thereby improving the construction efficiency of the communication channel; the present invention adopts a clamping device in conjunction with a jack to realize the dismantling of the steel pipe segments, replacing the manual dismantling method using a hand winch, and the construction is safer and more convenient; the present invention can realize the requirements of rotating and laying large steel pipe segments in a specified manner in a narrow space through a transportation device, so that the large steel pipe segments can be quickly loaded and transported; the present invention uses an orderly combination of a clamping device and a transportation device, so that the disassembly, loading and transportation paths of large steel pipe segments are clear and simple, and the overall construction operation is relatively simple, the construction efficiency is high and the risk is relatively low; the device type of the present invention is simple, manual intervention is less, the degree of mechanization is high, and the construction method is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0045] Figure 1 A three-dimensional schematic diagram of the installation of a support frame at the opening of a tunnel communication channel of the present invention;

[0046] Figure 2 It is a three-dimensional schematic diagram of the support frame of the present invention;

[0047] Figure 3 It is a three-dimensional schematic diagram of the clamping device of the present invention;

[0048] Figure 4 A three-dimensional schematic diagram of the transport device of the present invention;

[0049] Figure 5 It is a cross-sectional view of the steel pipe segment quick removal device of the present invention;

[0050] Figure 6 It is a two-dimensional schematic diagram of the slide rail of the present invention;

[0051] Figure 7 A three-dimensional schematic diagram of the steel pipe segment rapid removal process of the present invention (I);

[0052] Figure 8 A three-dimensional schematic diagram of the steel pipe segment rapid dismantling process of the present invention (II);

[0053] Fig. 9 A three-dimensional schematic diagram of the steel pipe segment rapid removal process of the present invention (III);

[0054] Fig.10 This is a three-dimensional schematic diagram (IV) of the steel pipe segment rapid dismantling process of the present invention.

[0055] In the figure:

[0056] 1. Tunnel; 2. Steel pipe segment; 3. Support device; 4. Clamping device; 5. Transport device; 6. Jack; 7. Slide rail; 8. Slider; 9. Angle steel; 10. Universal wheel; 31. Door frame crossbeam; 32. Door frame column; 33. Door frame inner support; 34. Steel ring pad; 35. Support crossbeam; 36. Support longitudinal beam; 37. Support platform; 38. Bottom support frame; 41. Longitudinal beam; 42. Crossbeam; 43. Column; 44. Connecting beam; 45. Grab bar; 46. Grab head; 47. Cantilever beam; 51. Base; 52. Rotating pedestal; 53. Ear seat; 54. Vertical plate; 55. Rivet; 56. Hydraulic telescopic rod; 57. Support; 58. Support plate; 59. Vertical pole. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0059] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0061] The line direction along the tunnel centerline is set as the longitudinal direction, and the distance between the steel pipe segments 2 is set as the transverse direction. Figures 1 to 6 As shown, the present invention provides a device for quickly removing steel pipe segments at the entrance of a tunnel communication passage, comprising a supporting device 3, a clamping device 4 and a transporting device 5; the supporting device 3 is arranged inside the tunnel 1 to support the structure of the tunnel 1; the clamping device 4 is used for removing the steel pipe segments 2; and the transporting device 5 is used for transporting the disassembled steel pipe segments 2 out of the tunnel 1.

[0062] The supporting device 3 includes a door frame bracket, a supporting platform 37, a supporting longitudinal beam 36, a supporting cross beam 35 and a jack 6; at least two door frame brackets are provided, and the two door frame brackets are respectively provided on both sides of the steel pipe segment 2 to be removed, the supporting platform 37 is fixedly connected between the bottoms of the two door frame brackets, the supporting longitudinal beam 36 is fixedly connected between the tops of the two door frame brackets, and at least two supporting cross beams 35 are provided, and the two supporting cross beams 35 are fixedly installed in parallel on the bottom surface of the supporting longitudinal beam 36, and the supporting cross beam 35 and the supporting longitudinal beam 36 are fixedly installed in parallel on the bottom surface of the supporting cross beam 35 and the supporting cross beam 35 and the supporting longitudinal beam 36. The beam 36 can connect the two door frame brackets to ensure the stability of the entire supporting device 3; the clamping device 4 and the transport device 5 are both movably arranged on the supporting platform 37; there are two groups of jacks 6, and the two groups of jacks 6 are respectively arranged on the supporting platform 37 and the supporting longitudinal beam 36, and each group of jacks 6 is provided with at least two, so as to simultaneously push the four corners of the side of the clamping device 4 to move it toward the steel pipe segment 2 that is away from the target for demolition, and the jacks 6 are connected to the supporting longitudinal beam 36 and the supporting platform 37 by bolts.

[0063] A plurality of bottom support frames 38 are also installed at the bottom of the support platform 37 to further improve the stability of the support platform 37 .

[0064] The door frame bracket includes a steel ring pad 34, a door frame inner support 33, a door frame column 32 and a door frame cross beam 31; the steel ring pad 34 is embedded in the inner side of the tunnel 1, and the door frame column 32 and the door frame cross beam 31 are each provided with two mutually parallel and cross-connected on the inner side of the steel ring pad 34, and the door frame column 32 and the door frame cross beam 31 are connected by welding. The door frame cross beam 31 and the door frame column 32 are the main load-bearing components supporting the tunnel 1, and multiple door frame inner supports 33 are secondary load-bearing components supporting the tunnel 1. The steel ring pad 34 can make the tunnel 1 support force more uniform, and multiple door frame inner supports 33 are provided. The inner wall of the steel ring pad 34 is fixedly connected to the door frame column 32 and the door frame cross beam 31 through multiple door frame inner supports 33, and the supporting longitudinal beam 36 is connected to the supporting platform 37 and is fixedly connected to the corresponding door frame cross beam 31.

[0065] Both ends of the support platform 37 are provided with inclined surfaces extending beyond the corresponding door frame brackets. The outer side of the door frame bracket is arranged inclined and can meet the needs of the clamping device 4 and the transportation device 5 to move from the tunnel 1 to the upper part of the support platform 37.

[0066] The clamping device 4 includes a frame structure, a gripping head 46 and a gripping rod 45; one end of the gripping rod 45 is fixedly installed on the frame structure, and the gripping head 46 is fixedly installed on the other end of the gripping rod 45 so as to move closer to or away from the target steel pipe segment 2 to be removed under the telescopic drive of the gripping rod 45; sliders 8 are detachably installed at the four corners of the top surface of the frame structure, and a slide rail 7 for slidingly nesting the slider 8 is provided at the bottom end of the supporting beam 35. The slide rail 7 is bolted to the supporting beam 35, and the arrangement range of the slide rail 7 should be able to meet the directional movement range of the clamping device 4. The gripping head 46 clamps the steel pipe segment 2 using the reserved holes on the steel pipe segment 2. When the clamping device 4 moves to one side under the top thrust of the jack 6, the clamped steel pipe segment 2 will be removed together to achieve rapid removal of the entire steel pipe segment 2.

[0067] The frame structure includes longitudinal beams 41, transverse beams 42, columns 43 and connecting beams 44; at least four longitudinal beams 41 and transverse beams 42 are provided, wherein two longitudinal beams 41 and two transverse beams 42 are cross-fixedly connected to form a bottom frame, and the other two longitudinal beams 41 and transverse beams 42 are also cross-fixedly connected to form a top frame; at least four columns 43 are provided, wherein four columns 43 are fixedly connected between the bottom frame and the corresponding corners of the top; at least two connecting beams 44 are provided, wherein one connecting beam 44 is fixedly provided at a steel plate near the target demolition A row of columns 43 of the pipe segment 2, and the upper surface of the connecting beam 44 is fixedly connected to the lower surface of the fixed end of the grab bar 45, another connecting beam 44 is fixedly arranged between another row of columns 43, and the side surface of the connecting beam 44 is fixedly connected to the bottom surface of the fixed end of the grab bar 45, so that the connecting beam 44 on the side of the steel pipe segment 2 far away from the target demolition is higher than the connecting beam 44 on the side close to the steel pipe segment 2 to ensure stable support; both ends of the bottom frame and the top frame on the side away from the target demolition steel pipe segment 2 are fixedly connected with cantilever beams 47.

[0068] A group of parallel angle steels 9 are provided at the four corners of the top frame, and a gap is left between each group of angle steels 9, and the gap is used for placing the slider 8.

[0069] The transport device 5 includes a base 51, a rotating platform 52, an ear seat 53, a support plate 58, a support 57 and a hydraulic telescopic rod 56; the bottom end surface of the support plate 58 has a plurality of vertical rods 59, the hydraulic telescopic rod 56 is rotatably arranged at the center of the support plate 58 through a ball joint, the rotating platform 52 is rotatably installed at one end of the support plate 58, and the support 57 is fixedly installed at the other end of the support plate 58; the ear seat 53 and the vertical plate 54 are each provided with two, and the two ear seats 53 and the two vertical plates 54 are fixedly installed on the rotating platform 52. The base 51 is composed of three side plates forming an annular package. The cavity formed by the three side plates is consistent with the outer contour of the end of the steel pipe segment 2. The top and bottom ends of the side plates on both sides of the base 51 have multiple bolt holes. The multiple bolt holes at the top are used to fix the base 51 to the lower end of the target steel pipe segment 2 to be removed, and the multiple bolt holes at the bottom are used to fix the base 51 to the vertical plate 54. The two sides of the base 51 are respectively penetrated into the two ear seats 53 by rivets 55, so that the base 51 can be around the ear seats 53 rotation movement; the hydraulic telescopic rod 56 and the support plate 58 are connected by a ball joint, and the hydraulic telescopic rod 56 can rotate in multiple directions around the ball joint. A rivet joint is set on the other side of the hydraulic telescopic rod 56. When the hydraulic telescopic rod 56 is extended, it will be connected with the reserved joint in the middle of the vertically placed steel pipe segment 2. When the hydraulic telescopic rod 56 is retracted, the steel pipe segment 2 will rotate around the ear seat 53 through the base 51 to complete the flat placement of the steel pipe segment 2; the support 57 is fixed to the support plate 58 by bolts. When the steel pipe segment 2 is completely laid flat, The support 57 will serve as a support for the other end of the steel pipe segment 2; a vertical pole 59 is provided at the lower part of the support plate 58, and a universal wheel 10 is provided at the lower part of the vertical pole 59. The support plate 58, the vertical pole 59 and the universal wheel 10 together constitute the main load-bearing and mobile structure of the transportation device 5; the vertical pole 59 has a certain degree of elasticity and can be used to adjust the height of the transportation device 5 to a certain extent to meet the fixation of the base 51 and the lower end of the steel pipe segment 2; the transportation device 5 directly realizes the rapid loading and transportation of the dismantled steel pipe segment 2.

[0070] The present invention further comprises a plurality of universal wheels 10 , which are rotatably mounted on the bottom of the frame structure and the bottom end of the vertical pole 59 .

[0071] like Figures 7 to 10 The present invention also provides a construction method for the above-mentioned steel pipe segment rapid removal device at the tunnel communication passage opening, comprising the following steps:

[0072] S1. Install support devices 3 on both sides of the opening of the communication channel of tunnel 1;

[0073] S2, completing the installation of the clamping device 4 outside the tunnel 1, and moving it to the supporting platform 37 of the supporting device 3;

[0074] S3, move the clamping device 4 close to the steel pipe segment 2 and install the grabbing rod 45 and the grabbing head 46, and use the grabbing head 46 to grab the target steel pipe segment 2;

[0075] S4, install the jack 6 and place the top end of the jack 6 close to the inner side of the cantilever beam 47;

[0076] S5, put the slider 8 into the slide rail 7, and move the slider 8 to the gap between the parallel angle steel 9 provided on the upper part of the clamping device 4, and fix the slider 8 and the angle steel 9 with bolts;

[0077] S6, adding force to the jack 6, and opening the clamping device 4 horizontally and orienting it through the cantilever beam 47, at which time the steel pipe segment 2 will be opened synchronously, and the removal of the steel pipe segment 2 is completed;

[0078] S7, move the clamping device 4 and carry the steel pipe segment 2 along the slide rail 7 to the left side of the tunnel 1, then move the transport device 5 to above the support platform 37, adjust the height and position of the transport device 5 (the height can be adjusted by an external hydraulic seat) until the lower end of the steel pipe segment 2 is placed in the base 51, and temporarily fixed with bolts;

[0079] S8, release the gripping head 46, and use the rotating pedestal 52 to rotate the steel pipe segment 2 to a certain angle until the inner side of the steel pipe segment faces the hydraulic telescopic rod 56, and at the same time, extend the hydraulic telescopic rod 56 and adjust the angle so that the end of the hydraulic telescopic rod 56 is riveted to the embedded part inside the steel pipe segment 2;

[0080] S9, loosen the bolts between the base 51 and the vertical plate 54, retract the hydraulic telescopic rod 56, and gradually rotate the steel pipe segment 2 around the ear seat 53 and lay it flat on the upper part of the transport device 5, until the upper end of the steel pipe segment 2 overlaps the support 57;

[0081] S10, using the transport device 5 to transport the steel pipe segment 2 to a designated location;

[0082] S11. Repeat steps S3 to S10 to complete the removal of the remaining steel pipe segments 2.

[0083] In step S5, the setting of the slide rail 7 and the slider 8 can control the moving direction of the clamping device 4, ensuring that the steel pipe segment 2 can be removed in the correct direction. At the same time, it can ensure the effectiveness of the jack force, and it is also convenient to set some damping mechanisms on the clamping device 4 to prevent the steel pipe segment 2 from causing a large displacement when it is dragged out.

[0084] In step S3, the grab bar 45 and the grab head 46 are generally post-installed structures, which need to be determined according to the relative position of the steel pipe segment 2. The width of the clamping device 4, that is, the left and right range of the grab bar 45 and the grab head 46, can cover all the steel pipe segments 2. Generally, only the installation positions of the grab bar 45 and the grab head 46 are adjusted to achieve the gripping of the steel pipe segment 2 by the grab head 46.

[0085] In step S4, the jacks 6 on both sides of the clamping device 4 can be appropriately away from the clamping device 4, and the length of the cantilever beam 47 can be appropriately increased. This can facilitate the adjustment of the longitudinal position (i.e., the left and right position) of the clamping device 4. At this time, the position of the clamping device 4 can be directly adjusted to facilitate the connection between the gripping head 46 and the steel pipe segment 2, without the need to subsequently adjust the installation position of the gripping rod 45 and the gripping head 46.

[0086] In this construction method, there is less manual intervention, and the dismantling and loading and unloading mainly rely on relevant equipment, which can basically realize the mechanized construction of dismantling large steel pipe segments at the opening of the communication channel.

[0087] The above embodiments and / or implementation methods are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to impose any form of limitation on the implementation methods of the technology of the present invention. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

[0088] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A device for quickly removing steel pipe segments at the opening of a tunnel communication passage, characterized in that: It comprises a supporting device (3), a clamping device (4) and a transporting device (5); The supporting device (3) is arranged inside the tunnel (1) and is used to support the structure of the tunnel (1); The clamping device (4) is used for removing the steel pipe segment (2); The transport device (5) is used to transport the disassembled steel pipe segments (2) out of the tunnel (1); the transport device (5) comprises a base (51), a rotating pedestal (52), an ear seat (53), a vertical plate (54), a support plate (58), a support seat (57), and a hydraulic telescopic rod (56); The bottom end surface of the support plate (58) has a plurality of vertical rods (59); the hydraulic telescopic rod (56) is rotatably arranged at the center of the support plate (58) via a ball joint; the rotating pedestal (52) is rotatably mounted on one end of the support plate (58); and the support (57) is fixedly mounted on the other end of the support plate (58); Two of the ear seats (53) and two of the vertical plates (54) are provided, and the two ear seats (53) and the two vertical plates (54) are fixedly mounted on the rotating platform (52); The base (51) is composed of three side plates forming an annular wrap, the cavity formed by the three side plates being consistent with the outer contour of the end of the steel pipe segment (2), the top and bottom ends of the side plates on both sides of the base (51) are provided with a plurality of bolt holes, the plurality of bolt holes at the top end are used for fixing the base (51) to the lower end of the steel pipe segment (2) to be removed, and the plurality of bolt holes at the bottom end are used for fixing the base (51) to the vertical plate (54), and rivets (55) are respectively inserted into the two ear seats (53) on both sides of the base (51) so that the base (51) can rotate around the ear seats (53); an embedded part capable of being riveted to the end of a hydraulic telescopic rod (56) is provided on the inner side of the steel pipe segment (2); The supporting device (3) comprises a door frame bracket, a supporting platform (37), a supporting longitudinal beam (36), a supporting cross beam (35) and a jack (6); At least two door frame brackets are provided, and the two door frame brackets are respectively provided on both sides of the steel pipe segment (2) to be removed, the support platform (37) is fixedly connected between the bottoms of the two door frame brackets, the support longitudinal beam (36) is fixedly connected between the tops of the two door frame brackets, and at least two support cross beams (35) are provided, and the two support cross beams (35) are fixedly installed in parallel on the bottom surface of the support longitudinal beam (36); The clamping device (4) and the transport device (5) are both movably arranged on the support platform (37); Two groups of jacks (6) are provided, and the two groups of jacks (6) are respectively provided on the support platform (37) and the support longitudinal beam (36). Each group of jacks (6) is provided with at least two jacks to simultaneously push the four side corners of the clamping device (4) to move it toward the steel pipe segment (2) that is away from the target for removal.

2. The device for quickly removing steel pipe segments at the tunnel communication passage opening according to claim 1 is characterized in that: The door frame bracket comprises a steel ring backing plate (34), a door frame inner support (33), a door frame column (32) and a door frame crossbeam (31); The steel ring pad (34) is embedded in the inner side of the tunnel (1); the door frame column (32) and the door frame cross beam (31) are each provided with two mutually parallel steel ring pads (34) and are cross-connected in pairs on the inner side of the steel ring pad (34); a plurality of door frame inner supports (33) are provided; the inner wall of the steel ring pad (34) is fixedly connected to the door frame column (32) and the door frame cross beam (31) through the plurality of door frame inner supports (33); and the supporting longitudinal beam (36) and the supporting platform (37) are connected to the corresponding door frame cross beam (31) and are fixedly connected.

3. The device for quickly removing steel pipe segments at the tunnel communication passage opening according to claim 1 is characterized in that: Both ends of the support platform (37) are provided with inclined surfaces extending outside the corresponding door frame bracket.

4. The device for quickly removing steel pipe segments at the tunnel communication passage opening according to claim 2 is characterized in that: The clamping device (4) comprises a frame structure, a gripping head (46) and a gripping rod (45); One end of the grab bar (45) is fixedly mounted on the frame structure, and the grab head (46) is fixedly mounted on the other end of the grab bar (45) so as to move towards or away from the steel pipe segment (2) to be removed under the telescopic drive of the grab bar (45); Slide blocks (8) are detachably mounted at the four corners of the top surface of the frame structure, and a slide rail (7) for slidingly nesting the slide blocks (8) is provided at the bottom end of the support beam (35).

5. The device for quickly removing steel pipe segments at the tunnel communication passage opening according to claim 4 is characterized in that: The frame structure comprises a longitudinal beam (41), a transverse beam (42), a column (43) and a connecting beam (44); At least four longitudinal beams (41) and cross beams (42) are provided, wherein two longitudinal beams (41) and two cross beams (42) are cross-fixedly connected to form a bottom frame, and another two longitudinal beams (41) and cross beams (42) are cross-fixedly connected to form a top frame; At least four upright posts (43) are provided, wherein the four upright posts (43) are fixedly connected between the bottom frame and corresponding corners of the top end; At least two connecting beams (44) are provided, one of which is fixedly arranged between a row of columns (43) close to the steel pipe segment (2) to be removed, and the upper surface of the connecting beam (44) is fixedly connected to the lower surface of the fixed end of the grab bar (45), and the other connecting beam (44) is fixedly arranged between another row of columns (43), and the side surface of the connecting beam (44) is fixedly connected to the bottom surface of the fixed end of the grab bar (45); Both ends of the bottom frame and the top frame on a side away from the steel pipe segment (2) to be removed are fixedly connected with cantilever beams (47).

6. A device for quickly removing steel pipe segments at the tunnel communication passage opening according to claim 5, characterized in that: A group of parallel angle steels (9) are provided at each of the four corners of the top frame, and a gap is left between each group of angle steels (9), and the gap is used for placing the slider (8).

7. A device for quickly removing steel pipe segments at the tunnel communication passage opening according to claim 6, characterized in that: It also includes a plurality of universal wheels (10), wherein the plurality of universal wheels (10) are rotatably mounted on the bottom of the frame structure and the bottom end of the vertical pole (59) respectively.

8. A construction method for a quick removal device for steel pipe segments at the tunnel communication passage opening according to claim 7, characterized in that: The steps include: S1. Installing support devices (3) on both sides of the opening of the communication channel of the tunnel (1); S2, completing the installation of the clamping device (4) outside the tunnel (1), and moving it onto the supporting platform (37) of the supporting device (3); S3, moving the clamping device (4) close to the steel pipe segment (2) and installing a grabbing rod (45) and a grabbing head (46), and using the grabbing head (46) to grab the target steel pipe segment (2); S4, installing the jack (6) and placing the top end of the jack (6) close to the inner side of the cantilever beam (47); S5, placing the slider (8) into the slide rail (7), and at the same time moving the slider (8) into the gap between the parallel angle steel (9) provided on the upper part of the clamping device (4), and fixing the slider (8) and the angle steel (9) with bolts; S6, applying force to the jack (6), and horizontally directional pushing open the clamping device (4) through the cantilever beam (47), at which time the steel pipe segment (2) will be pushed open synchronously, and the removal of the steel pipe segment (2) is completed; S7, moving the clamping device (4) and carrying the steel pipe segment (2) along the slide rail (7) to the left side of the tunnel (1), then moving the transport device (5) to above the support platform (37), adjusting the height and position of the transport device (5) until the lower end of the steel pipe segment (2) is placed in the base (51), and temporarily fixing it with bolts; S8, loosen the gripping head (46), use the rotating pedestal (52) to rotate the steel pipe segment (2) at a certain angle until the inner side of the steel pipe segment (2) faces one side of the hydraulic telescopic rod (56), and at the same time extend the hydraulic telescopic rod (56) and adjust the angle so that the end of the hydraulic telescopic rod (56) is riveted to the embedded part on the inner side of the steel pipe segment (2); S9, loosen the bolts between the base (51) and the vertical plate (54), retract the hydraulic telescopic rod (56), and gradually rotate the steel pipe segment (2) around the ear seat (53) and place it flat on the upper part of the transport device (5), until the upper end of the steel pipe segment (2) overlaps the support (57); S10, transporting the steel pipe segment (2) to a designated location using a transport device (5); S11. Repeat steps S3 to S10 to complete the removal of the remaining steel pipe segments (2).

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