Shield segment joint waterproof device

Abstract

The present invention provides a waterproof device for the joint of shield segments, which relates to the technical field of segment waterproof structures, and to solve to a certain extent the problems in the existing waterproof structure that the deformation space of the water stop strip is limited, it is inconvenient to expand, and it is impossible to seal small gaps. The waterproof device for the joint of shield segments provided by the present invention is used to seal the joint of segments, and includes a seal, a first water stop strip and a second water stop strip; two segments form a receiving groove, and the butt joint of two adjacent segments forms a receiving space, the seal is arranged in the receiving space, and the edge of the seal abuts against the edge of the receiving space; the seal forms a first opening corresponding to the first joint of the two segments and a second opening corresponding to the second joint, the first water stop strip is arranged in the first opening, the second water stop strip is arranged in the second opening, and a through slot is formed on the seal, and the through slot communicates the first opening and the second opening.

Description

Technical Field

[0001] The present invention relates to the technical field of segment waterproof structures, and in particular to a waterproof device for shield segment joints. Background Art

[0002] A waterproof device for shield segment joints is a device or material used to prevent water seepage at the joints of shield tunnel segments. In the construction of shield tunnels, the waterproof treatment at the segment joints is very crucial because if the waterproof treatment at the joints is not proper, groundwater may seep into the tunnel, affecting the normal use and structural safety of the tunnel.

[0003] The existing method to improve the sealing effect of segment joints is to use an elastic gasket and a waterstop strip in combination. The main function of the elastic gasket is to form a sealing layer at the segment joints to prevent the infiltration of groundwater. After the combination of the elastic gasket and the waterstop strip, the deformation space of the elastic gasket and the waterstop strip is limited, which is not convenient for the expanding waterstop strip to extend circumferentially, and it is not convenient to seal the tiny gaps.

[0004] Therefore, there is an urgent need to provide a waterproof device for shield segment joints to solve the problems existing in the prior art to a certain extent. Summary of the Invention

[0005] The purpose of the present invention is to provide a waterproof device for shield segment joints to solve, to a certain extent, the problems in the existing waterproof structure that the deformation space of the waterstop strip is limited, it is not convenient to expand, and it is impossible to seal tiny gaps.

[0006] A waterproof device for shield segment joints provided by the present invention is used to seal the joints of segments, and includes a seal, a first waterstop strip, and a second waterstop strip; two segments are formed with receiving grooves, and when two adjacent segments are butted, the receiving grooves form a receiving space, the seal is arranged in the receiving space, and the edge of the seal abuts against the edge of the receiving space; the seal is formed with a first opening corresponding to a first joint of the two segments and a second opening corresponding to a second joint, the first waterstop strip is arranged in the first opening, the second waterstop strip is arranged in the second opening, and a through slot is formed on the seal, and the through slot communicates the first opening and the second opening.

[0007] As an optional manner, the seal includes a first contact end, a second contact end, a third contact end, and a fourth contact end, the first contact end and the third contact end are relatively arranged in the receiving groove of the same segment, and the first contact end and the second contact end are relatively arranged in the receiving space.

[0008] As an alternative, the surfaces of the first contact end, the second contact end, the third contact end, and the fourth contact end that contact the bottom of the receiving groove are all corrugated surfaces.

[0009] As an alternative, the seal forms a first channel that axially penetrates both ends of the seal.

[0010] As an alternative, both the first opening and the second opening are V-shaped, and the cross-section of the seal is a symmetric butterfly shape, and at least two opposite first channels are formed on the seal.

[0011] As an alternative, at least two opposite second channels are further formed on the seal, and the second channels are located inside the first channels.

[0012] As an alternative, at least two opposite third channels and two opposite fourth channels are further formed on the seal, and the diameter of the fourth channel is greater than the diameter of the third channel, the diameter of the third channel is greater than the diameter of the first channel, and the first channel, the third channel, and the fourth channel are arranged in sequence along the axis.

[0013] As an alternative, the two side edges of the seal are beveled edges, and the two beveled edges gradually converge from the first contact end and the second contact end to the third contact end and the fourth contact end. Part of the first channel, part of the second channel, and part of the third channel protrude from the beveled edges, and the area of the outer surface corresponding to the first channel is smaller than the area of the outer surface corresponding to the second channel, and the area of the outer surface corresponding to the second channel is smaller than the area of the outer surface corresponding to the third channel.

[0014] As an alternative, the seal is a split structure, and the seal includes a first seal part and a second seal part. The first seal part forms a first docking part, and the second seal part forms a second docking part. Both the first docking part and the second docking part are serrated, and the first seal part and the second seal part are docked so that the cross-section of the seal is a butterfly shape.

[0015] As an alternative, a connecting seat is further included. The first seal part and the second seal part are strip-shaped, and the connecting seat is L-shaped. Adjacent two first seal parts or two second seal parts are connected by the connecting seat; a positioning post is formed on the end surface of the connecting seat, and the positioning post can be inserted into the first channel and / or the second channel and / or the third channel and / or the fourth channel.

[0016] Compared with the prior art, the shield segment joint waterproofing device provided by the present invention has the following advantages:

[0017] The shield segment joint waterproofing device provided by the present invention is used to seal the joints of segments, and includes a seal, a first water stop strip and a second water stop strip; two segments are formed with a receiving groove, and the docking of two adjacent segments forms a receiving space. The seal is arranged in the receiving space, and the edge of the seal abuts against the edge of the receiving space; the seal is formed with a first opening corresponding to the first joint of the two segments and a second opening corresponding to the second joint. The first water stop strip is arranged in the first opening, the second water stop strip is arranged in the second opening, and a through slot is formed on the seal, and the through slot communicates the first opening and the second opening.

[0018] It can be analyzed from this that by docking two adjacent segments, a receiving space can be formed by using the receiving grooves of the two segments. Therefore, the joints of adjacent segments are located in the area corresponding to the receiving space, and by arranging the seal in the receiving space, the sealing of the docking joint position can be achieved.

[0019] Specifically, in this application, by making the first opening formed by the seal corresponding to the first joint position and the second opening corresponding to the second joint position, the first water stop strip and the second water stop strip can be correspondingly accommodated. Usually, the first joint of the segment is on the outside, and the moisture in the tunnel seeps in through the first joint of the segment and contacts the first water stop strip in the first opening. The first water stop strip swells after absorbing water and can squeeze the seal, so that the contact between the seal and the receiving groove is tighter, thereby improving the sealing degree. When the first water stop strip is saturated with water absorption, the infiltrated water will enter the second opening through the through slot, so that the second water stop strip swells after absorbing water, realizing the further outward expansion of the sealing strip, and further realizing the close fit between the seal and the side wall of the receiving space, that is, the first opening and the second opening formed by the seal can ensure that the first water stop strip and the second water stop strip have a certain degree of deformability, and through the deformation of the first water stop strip and the second water stop strip, the contact between the seal and the receiving space can be made tighter, thus ensuring both the sealing of the first joint and the second joint and the sealing between the seal and the receiving space. Description of the Drawings

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of the shield segment joint waterproofing device provided by the embodiment of the present invention;

[0022] Figure 2 Schematic diagram of the seal in the shield segment joint waterproofing device provided by the embodiment of the present invention Figure 1 ;

[0023] Figure 3 Schematic diagram of the seal in the shield segment joint waterproofing device provided by the embodiment of the present invention Figure 2 ;

[0024] Figure 4 Overall structure diagram of the seal in the shield segment joint waterproofing device provided by the embodiment of the present invention;

[0025] Figure 5 Schematic diagram of the split seal in the shield segment joint waterproofing device provided by the embodiment of the present invention;

[0026] Figure 6 Schematic diagram of the cooperation between the first seal part and the second seal part and the connecting seat in the shield segment joint waterproofing device provided by the embodiment of the present invention;

[0027] Figure 7 Schematic diagram of the segment in the shield segment joint waterproofing device provided by the embodiment of the present invention;

[0028] Figure 8 Overall structure schematic diagram of the segment in the shield segment joint waterproofing device provided by the embodiment of the present invention.

[0029] In the figure: 1 - segment; 101 - receiving groove; 2 - seal; 201 - bevel edge; 202 - first support surface; 203 - second support surface; 204 - first channel; 205 - second channel; 206 - first opening; 207 - second opening; 208 - through slot; 209 - third channel; 210 - fourth channel; 211 - first seal part; 212 - second seal part; 213 - first docking part; 214 - second docking part; 3 - first waterstop strip; 4 - second waterstop strip; 5 - connecting seat; 501 - positioning post. Detailed implementation manners

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Components of the embodiments of this application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents the selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative efforts fall within the scope of protection of this application.

[0031] In the description of the embodiments of this application, it should be noted that the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships in which the inventive product is customarily placed during use. These 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. Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0032] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0033] In the description of the embodiments of this application, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "coupled" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] As used herein, the term "and / or" includes any one of the listed related items and any combination of any two or more of them.

[0035] For ease of description, spatial relationship terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. Such spatial relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings.

[0036] The terms used herein are for the purpose of describing various examples only and are not intended to limit the present disclosure. Unless the context clearly dictates otherwise, the singular forms are also intended to include the plural forms. The terms "comprising", "including", and "having" enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof that exist, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0037] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the accompanying drawings may occur. Accordingly, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that occur during manufacturing.

[0038] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application. Additionally, the technical solutions between various embodiments may be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0039] Embodiment 1

[0040] As Figures 1-4 shown, the present invention provides a segment 1 joint waterproofing device for sealing the joint of segment 1, including a seal 2, a first waterstop strip 3, and a second waterstop strip 4; two segments 1 are formed with a receiving groove 101, and two adjacent segments 1 are butted to form a receiving space with the receiving groove 101. The seal 2 is disposed in the receiving space, and the edge of the seal 2 abuts against the edge of the receiving space; the seal 2 is formed with a first opening 206 corresponding to the first joint of the two segments 1 and a second opening 207 corresponding to the second joint. The first waterstop strip 3 is disposed in the first opening 206, the second waterstop strip 4 is disposed in the second opening 207, and a through slot 208 is formed on the seal 2, and the through slot 208 communicates the first opening 206 and the second opening 207.

[0041] Compared with the prior art, the segment 1 joint waterproofing device provided by the present invention has the following advantages:

[0042] The segment joint waterproofing device provided by the present invention can form a receiving space by docking two adjacent segments 1, so that the joint of the two adjacent segments 1 is located in the area corresponding to the receiving space. By arranging the seal 2 in the receiving space, the sealing of the joint position can be achieved.

[0043] Specifically, in the present application, the first opening 206 formed by the seal 2 corresponding to the first joint position and the second opening 207 formed corresponding to the second joint position can receive the first water stop strip 3 and the second water stop strip 4 correspondingly. Generally, the first joint of the segment 1 is on the outer side, and the moisture in the tunnel seeps in through the first joint of the segment 1 and contacts the first water stop strip 3 in the first opening 206. The first water stop strip 3 swells after absorbing water and can squeeze the seal 2, so that the contact between the seal 2 and the receiving groove 101 is closer, thereby improving the sealing degree. When the first water stop strip 3 is saturated with water absorption, the infiltrated water will enter the second opening 207 through the through joint 208, so that the second water stop strip 4 swells after absorbing water, realizing the further outward expansion of the sealing strip, and further realizing the close fit between the seal 2 and the side wall of the receiving space, that is, the first opening 206 and the second opening 207 formed by the seal 2 can ensure that the first water stop strip 3 and the second water stop strip 4 have a certain degree of deformability. Through the deformation of the first water stop strip 3 and the second water stop strip 4, the contact between the seal 2 and the receiving space can be made closer, thus ensuring both the sealing of the first joint and the second joint and the sealing between the seal 2 and the receiving space.

[0044] In this embodiment, as Figures 1-4 shown, the seal 2 in the present application includes a first contact end, a second contact end, a third contact end and a fourth contact end. The first contact end and the third contact end are oppositely arranged in the receiving groove 101 of the same segment 1, and the first contact end and the second contact end are oppositely arranged in the receiving space.

[0045] By forming four contact ends, the full and uniform contact between the seal 2 and the receiving space can be realized, improving the stability and sealing performance between the seal 2 and the segment 1, and avoiding the problem that the first water stop strip 3 or the second water stop strip 4 moves due to uneven force on the seal 2, resulting in the inability to accurately correspond to the first joint or the second joint.

[0046] Preferably, as Figures 1-4 shown, the surfaces of the first contact end, the second contact end, the third contact end and the fourth contact end in the present application that contact the bottom of the receiving groove 101 are all corrugated surfaces.

[0047] It can be understood that the corrugated surface formed by the first contact end and the second contact end in the present application is the first support surface 202, and the corrugated surface formed by the third contact end and the fourth contact end is the second support surface 203. The first support surface 202 and the second support surface 203 are closely attached to the bottom surface of the receiving groove 101. Since the cross-section of the sealing member 2 on one side is similar to an arcuate structure, when the convex point of the arcuate structure is squeezed, it can prompt the first support surface 202 and the second support surface 203 to be pressed tightly against the bottom surface of the receiving groove 101. When the corrugated surface is pressed tightly against the bottom surface of the receiving groove 101, it can easily deform, so as to closely adhere to the bottom surface of the receiving groove 101 and improve the sealing effect.

[0048] Optionally, as Figures 1-4 shown, a first channel 204 penetrating through both ends of the sealing member 2 along the axial direction is formed in the sealing member 2 of the present application.

[0049] Since the segment 1 at the present stage is formed by pouring, during the processing, there are differences in the dimensions of the receiving groove 101 formed in the segment 1, and the inner side surface is not necessarily completely flat. Therefore, the contact pressure between different positions of the receiving groove 101 and the sealing member 2 may be different, thus easily causing the problem of insufficient sealing.

[0050] However, through the formed first channel 204 in the present application, after the two segments 1 are spliced, the sealing member 2 can be squeezed, and during the squeezing process, the first channel 204 is squeezed against the bottom surface of the receiving groove 101, thereby improving the sealing effect.

[0051] Preferably, as Figures 1-4 shown, the first opening 206 and the second opening 207 in the present application are both V-shaped, and the cross-section of the sealing member 2 is a symmetric butterfly shape, and at least two opposite first channels 204 are formed on the sealing member 2.

[0052] The V-shaped first opening 206 and second opening 207 can stably support the first water stop strip 3 and the second water stop strip 4, and can ensure the stability and uniformity of the force when being pressed, so that the sealing of the overall structure is more stable.

[0053] Optionally, as Figures 1-4 shown, at least two opposite second channels 205 are further formed on the sealing member 2 of the present application, and the second channels 205 are located inside the first channels 204.

[0054] Preferably, the cross-section of the second channel 205 in the present application is elliptical. On the one hand, the second channel 205 can be used to reduce the weight of the overall sealing member 2. On the other hand, since the second channel 205 is completely formed on the main body part of the sealing member 2, after the second channel 205 is formed, the sealing member 2 can have better deformation degree, thus ensuring the sealing performance.

[0055] Further preferably, as Figures 1-4 shown, at least two opposite third channels 209 and two opposite fourth channels 210 are further formed on the seal 2 in the present application. The diameter of the fourth channel 210 is greater than that of the third channel 209, and the diameter of the third channel 209 is greater than that of the first channel 204. The first channel 204, the third channel 209, and the fourth channel 210 are arranged in sequence along the axial direction.

[0056] Taking Figures 1-3 the perspective direction as an example, in the present application, a circular first channel 204, a third channel 209, and a fourth channel 210 are formed in sequence from top to bottom, and the diameters increase in sequence from top to bottom. It can be understood that since the two side edges of the seal 2 in the present application are bevel edges 201, and the two bevel edges 201 gradually converge from the first contact end and the second contact end to the third contact end and the fourth contact end, and the area of the outer surface corresponding to the first channel 204 is smaller than the area of the outer surface corresponding to the second channel 205, and the area of the outer surface corresponding to the second channel 205 is smaller than the area of the outer surface corresponding to the third channel 209. Therefore, the portions protruding from the bevel edge 201 can be located on the same straight line in the vertical direction, so as to ensure that when being pressed, they can contact the bottom wall of the receiving groove 101 as much as possible at the same time, and further ensure uniform stress to a certain extent and improve the sealing performance.

[0057] Embodiment 2

[0058] As an alternative way, as Figures 5-8 shown, the seal 2 in this embodiment is of a split structure, and the seal 2 includes a first sealing portion 211 and a second sealing portion 212. The first sealing portion 211 is formed with a first docking portion 213, and the second sealing portion 212 is formed with a second docking portion 214. Both the first docking portion 213 and the second docking portion 214 are serrated, and the first sealing portion 211 and the second sealing portion 212 are docked so that the cross-section of the seal 2 is in a butterfly shape.

[0059] By making the seal 2 of a split structure, the arrangement of the seal 2 can be made more flexible, and the serrated first docking portion 213 and second docking portion 214 can increase the contact area when the first sealing portion 211 and the second sealing portion 212 are docked, and at the same time can increase the friction force to ensure the stability of the docking.

[0060] In this embodiment, as Figure 6As shown in the figure, in the segment joint waterproofing device provided by the present invention, a connecting seat 5 is further included. The first sealing portion 211 and the second sealing portion 212 are strip-shaped, and the connecting seat 5 is L-shaped. Adjacent two first sealing portions 211 or two second sealing portions 212 are connected by the connecting seat 5; a positioning post 501 is formed on the end face of the connecting seat 5, and the positioning post 501 can be inserted into the first channel 204 and / or the second channel 205 and / or the third channel 209 and / or the fourth channel 210.

[0061] Through the L-shaped connecting seat 5, after correspondingly connecting the first sealing portion 211 or the second sealing portion 212, a rectangular sealing ring structure can be formed, which can then be arranged around the groove formed on the circumferential side wall of the segment 1. When two adjacent segments 1 are butted, the first sealing portion 211 and the second sealing portion 212 in the groove are butted, so that they can be mutually extruded, and then the first sealing portion 211 and the second sealing portion 212 can be pressed tightly in the groove to ensure the sealing performance.

[0062] It can be understood that in this embodiment, the above-mentioned first opening 206 and second opening 207 are jointly formed by the butt joint of the first sealing portion 211 and the second sealing portion 212, and after being formed, the first water stop strip 3 and the second water stop strip 4 can also be provided to ensure the absorption of water vapor. And because there is always a gap at the butt joint of the split structure, therefore, it can also ensure that the water vapor that cannot be absorbed by the first water stop strip 3 seeps from the butt joint to the second water stop strip 4 to achieve the above functions.

[0063] It should be supplemented here that a positioning post 501 is formed on the connecting seat 5 in the present application, and the shape and quantity of the positioning post 501 can be designed according to specific requirements. Since the first channel 204, the second channel 205, the third channel 209 and the fourth channel 210 are formed on the sealing member 2 in the present application, therefore, the positioning post 501 can be one, and one positioning post 501 can be inserted into the first channel 204 or the second channel 205 or the third channel 209 or the fourth channel 210.

[0064] To ensure the stable connection between the connecting seat 5 and the strip-shaped first sealing portion 211 or second sealing portion 212, there are at least two positioning posts 501, and the two positioning posts 501 can be inserted into any two of the four channels to realize the connection between the connecting seat 5 and the first sealing portion 211 or the second sealing portion 212. Correspondingly, the positioning post 501 can also be three or four, and when there are four positioning posts 501, there are positioning posts 501 in all four channels.

[0065] It should be further supplemented here that since the deformability of the overall sealing member 2 needs to be considered, therefore, the method of inserting positioning posts 501 in all four channels will inevitably reduce the deformability. Therefore, the quantity of the positioning posts 501 needs to be designed according to the actual sealing requirements, which will not be elaborated here.

[0066] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A waterproof device for the joint of shield segments, which is used to seal the joint of segments, is characterized in that, It includes a seal, a first water stop strip and a second water stop strip; Two segment linings form a receiving groove. When two adjacent segment linings are butted, the receiving groove forms a receiving space. The seal is arranged in the receiving space, and the edge of the seal abuts against the edge of the receiving space; The seal is formed with a first opening corresponding to the first joint of the two segment linings and a second opening corresponding to the second joint. The first water stop strip is arranged in the first opening, the second water stop strip is arranged in the second opening, and a through slot is formed on the seal. The through slot communicates the first opening and the second opening; The seal includes a first contact end, a second contact end, a third contact end and a fourth contact end. The first contact end and the third contact end are oppositely arranged in the receiving groove of the same segment lining, and the first contact end and the second contact end are oppositely arranged in the receiving space; The seal is formed with a first channel axially penetrating through both ends of the seal; Both the first opening and the second opening are V-shaped, and the cross-section of the seal is a symmetric butterfly shape. At least two opposite first channels are formed on the seal; At least two opposite second channels are further formed on the seal, and the second channels are located inside the first channels; At least two opposite third channels and two opposite fourth channels are further formed on the seal. The diameter of the fourth channel is greater than that of the third channel, the diameter of the third channel is greater than that of the first channel, and the first channel, the third channel and the fourth channel are arranged in sequence along the axis; The two side edges of the seal are bevel edges, and the two bevel edges gradually converge from the first contact end and the second contact end to the third contact end and the fourth contact end. Parts of the first channel, parts of the second channel and parts of the third channel protrude from the bevel edges, and the area of the outer surface corresponding to the first channel is smaller than the area of the outer surface corresponding to the second channel, and the area of the outer surface corresponding to the second channel is smaller than the area of the outer surface corresponding to the third channel; The seal is of a split structure and includes a first seal part and a second seal part. The first seal part is formed with a first docking part, and the second seal part is formed with a second docking part. Both the first docking part and the second docking part are serrated, and the first seal part and the second seal part are docked to make the cross-section of the seal a butterfly shape.

2. The waterproof device for the shield segment joint according to claim 1, characterized in that, The surfaces of the first contact end, the second contact end, the third contact end and the fourth contact end in contact with the bottom of the receiving groove are all corrugated surfaces.

3. The waterproof device for the shield segment joint according to claim 1, wherein It further includes a connecting seat. The first seal part and the second seal part are strip-shaped, and the connecting seat is L-shaped. Two adjacent first seal parts or two adjacent second seal parts are connected by the connecting seat; The end face of the connecting seat is formed with positioning columns, and the positioning columns can be inserted into the first channel and / or the second channel and / or the third channel and / or the fourth channel.

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