A shield tunneling water-proof segment based on electroosmosis and its laying method

Abstract

The application belongs to the technical field of shield construction, and provides a water leakage prevention pipe segment for shield based on electro-osmosis and a laying method thereof, which comprises a pipe segment body, top and bottom interlayer assemblies respectively arranged on the inner and outer sides of the pipe segment body, and a pull anchor assembly detachably connected between the top and bottom interlayer assemblies, and the top and bottom interlayer assemblies are arranged in a staggered manner with the pipe segment body; a plurality of electrode holes are formed in the pipe segment body along the axial direction of the pipe segment body and penetrate through the two side walls of the pipe segment body at both ends, and the plurality of electrode holes are used for placing an anode column; a communication groove assembly is further arranged in the pipe segment body and communicates with the plurality of electrode holes; and a cathode column is arranged in a soil layer at a certain distance from the pipe segment body. The application can enhance the water resistance of the pipe segment and reduce the risk of water seepage and penetration through the tunnel pipe segment.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of shield construction, and particularly relates to a water leakage prevention segment for shield based on electro-osmosis and a laying method thereof. BACKGROUND

[0002] At present, shield segment water prevention mainly adopts synchronous grouting and secondary grouting to form the first line of defense, and then synchronous segment self-water prevention and rubber sealing form the second line of defense, and finally polyurethane is injected to form the third line of defense.

[0003] The reinforced concrete segment is prone to problems such as uneven annular segment surface, non-perpendicularity between the segment annular surface and the tunnel design axis, ineffective sealing of the longitudinal joint, whole ring rotation of the circular ring, failure to meet the standard requirement of the tightening degree of the connecting bolt, segment fragmentation, fragmentation of the misaligned assembled segment, excessive segment ring height difference, and excessive segment ovality, and in addition, the shield tunnel segment construction joint is prone to water leakage due to close adhesion to the strong water-permeable stratum. SUMMARY

[0004] The application aims to provide a water leakage prevention segment for shield based on electro-osmosis and a laying method thereof to solve the above problems and achieve the purposes of enhancing the water prevention of the segment and reducing the risk of water seepage and permeation through the tunnel segment.

[0005] To achieve the above purposes, the application provides the following solution: a water leakage prevention segment for shield based on electro-osmosis, comprising:

[0006] A segment body, top and bottom interlayer assemblies are arranged on the inner and outer sides of the segment body respectively, the top and bottom interlayer assemblies are detachably connected through a pull anchor assembly, and the top and bottom interlayer assemblies are arranged in a staggered manner with the segment body.

[0007] A plurality of electrode holes are arranged in the segment body along the axial direction of the segment body, and the two ends of the plurality of electrode holes penetrate the two side walls of the segment body respectively, and the plurality of electrode holes are used for placing positive poles, and a communication groove assembly is further arranged in the segment body, and the communication groove assembly is in communication with the plurality of electrode holes.

[0008] A negative pole is arranged in the stratum at a certain distance from the segment body.

[0009] Preferably, the communication groove assembly comprises two groups of placement grooves arranged on the inner side of the segment body, the two groups of placement grooves are arranged perpendicularly to the axis of the segment body, and the two groups of placement grooves are arranged on the two sides of the segment body and in communication with the electrode holes.

[0010] Preferably, the top sandwich assembly comprises an upper elastic pad, the inner side of the upper elastic pad is attached to the pipe piece body, the outer side of the upper elastic pad is provided with an upper arc-shaped pressing plate, the inner side of the upper arc-shaped pressing plate is attached to the outer side wall of the upper elastic pad, the edge of the upper arc-shaped pressing plate is flush with the edge of the upper elastic pad, and the two adjacent edges of the upper elastic pad protrude from the two adjacent edges of the pipe piece body.

[0011] Preferably, the bottom sandwich assembly comprises a lower elastic pad, the outer side of the lower elastic pad is attached to the inner side of the pipe piece body, the inner side of the lower elastic pad is provided with a lower arc-shaped pressing plate, the outer side of the lower arc-shaped pressing plate is attached to the inner side of the lower elastic pad, and the edge of the lower elastic pad is flush with the edge of the upper elastic pad.

[0012] Preferably, the outer side of the lower elastic pad is fixedly connected with two groups of top blocks, and the two groups of top blocks are correspondingly provided with the two groups of placing grooves.

[0013] Preferably, the anchor pulling assembly comprises a plurality of pull rods fixedly connected to the inner side of the upper arc-shaped pressing plate, a plurality of first through holes are formed in the upper elastic pad, a plurality of second through holes are formed in the pipe piece body, a plurality of third through holes are formed in the lower elastic pad, a plurality of mounting holes are formed in the lower arc-shaped pressing plate, one end of each of the plurality of pull rods away from the upper arc-shaped pressing plate penetrates through the plurality of first through holes, the plurality of second through holes, the plurality of third through holes and the plurality of mounting holes, and a plurality of nuts are detachably connected to the plurality of pull rods, and the nuts are attached to the bottom of the mounting holes.

[0014] Preferably, the two sides of the pipe piece body are respectively provided with a plurality of connecting mechanisms, the connecting mechanism comprises an operating hole formed in the inner side wall of the pipe piece body, one end of the arc-shaped connecting hole formed in the side wall close to the edge of the pipe piece body, the other end of the arc-shaped connecting hole penetrates through the side wall of the pipe piece body, the arc-shaped connecting steel bars penetrate through the two adjacent arc-shaped connecting holes between the two adjacent pipe piece bodies, and the two ends of the arc-shaped connecting steel bars are respectively detachably connected with connecting nuts, and the connecting nuts are attached to the side wall of the operating hole.

[0015] Preferably, a boss is fixedly connected to one side wall of the pipe piece body, the boss is arranged in parallel with the axis of the pipe piece body, a groove is formed in the other side wall of the pipe piece body, the groove is arranged in parallel with the axis of the pipe piece body, and the boss on one pipe piece body is matched with the groove on the adjacent pipe piece body.

[0016] A water leakage prevention pipe piece laying method for shield based on electro-osmosis, the operation steps comprising:

[0017] The waterproof pipe piece is laid on the tunnel wall by laying equipment, so that the side walls of adjacent pipe piece bodies are attached to each other, meanwhile, the protruding parts of a pipe piece body relative to the top and bottom interlayer assemblies are attached to the protruding parts of the top and bottom interlayer assemblies of the adjacent pipe piece body, and the adjacent pipe piece bodies are connected;

[0018] After the waterproof pipe piece is laid, a plurality of positive poles are inserted into a plurality of electrode holes;

[0019] The lower interlayer assemblies on the pipe piece bodies at both ends are removed by the anchor pulling assembly, and the ends of part of the positive poles are connected as needed by the communication groove assembly, so that the plurality of positive poles are connected in series.

[0020] The negative poles are implanted in the soil layer at a distance above the tunnel, and the positive poles and the negative poles are connected to the positive and negative poles of the power supply, respectively.

[0021] Compared with the prior art, the present application has the following advantages and technical effects: the main functions of the top and bottom interlayer assemblies are to form a layered structure with the pipe piece body and an interlocking structure at the edge part, so that the two pipe piece bodies can be connected in a staggered joint when spliced, improving the waterproof performance; the main function of the communication groove assembly is to connect the plurality of positive poles in the plurality of pipe piece bodies in series; the main function of the positive and negative poles is to form an electric field between them, and to use the electric field to move the water molecules towards the negative poles, reducing the movement of water in the soil layer towards the pipe piece, and reducing the risk of water seepage and leakage. Overall, the present application forms a staggered joint through the top and bottom interlayer assemblies, which can effectively prolong the flow path of water seepage in the soil layer into the tunnel, and improve the waterproof performance after splicing through the close attachment between the top and bottom interlayer assemblies and the pipe piece body. At the same time, by arranging the positive poles in the pipe piece body and the negative poles in the soil layer, the water in the soil layer is drained away from the pipe piece body by using the principle of electro-osmosis, further reducing the water seepage of the pipe piece, and improving the waterproof effect of the pipe piece. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 is a schematic view of the waterproof pipe piece of the present application;

[0024] Figure 2 is a schematic view of the pipe piece body of the present application;

[0025] Figure 3 It is a schematic view of the upper elastic pad and the lower elastic pad of the present application;

[0026] Figure 4 It is a schematic view of the upper arc-shaped pressing plate and the lower arc-shaped pressing plate of the present application;

[0027] Figure 5 It is a bottom view of the segment body of the present application;

[0028] Figure 6 It is a schematic view of the electrode column distribution of the tunnel using the water leakage prevention segment of the present application;

[0029] Figure 7 It is a schematic view of the anchor pulling assembly of the present application;

[0030] Figure 8 It is a schematic view of the main control unit of the present application;

[0031] 1, segment body; 2, electrode hole; 3, lower elastic pad; 4, upper elastic pad; 5, upper arc-shaped pressing plate; 6, lower arc-shaped pressing plate; 7, boss; 8, arc-shaped connecting hole; 9, groove; 10, placing groove; 11, operation hole; 12, first through hole; 13, top block; 14, pull rod; 15, mounting hole; 16, positive column; 17, connecting electrode column; 18, negative electrode column; 19, second through hole; 20, third through hole; 21, nut; 22, control unit; 23, voltage adjusting knob; 24, pulse period adjusting knob; 25, current adjusting knob; 26, electrode column; 27, display screen; 28, oscilloscope. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0034] Reference Figures 1-7 The present application provides a water leakage prevention segment for shield based on electro-osmosis, comprising:

[0035] The segment body 1 is provided with a top interlayer assembly and a bottom interlayer assembly on the inner and outer sides respectively, and the top interlayer assembly and the bottom interlayer assembly are detachably connected through an anchor pulling assembly, and the top interlayer assembly, the bottom interlayer assembly and the segment body 1 are arranged in a staggered manner;

[0036] A plurality of electrode holes 2 are arranged in the axial direction of the pipe body 1 and pass through the two side walls of the pipe body 1, and the plurality of electrode holes 2 are used to place the positive electrode column 16. A communication groove assembly is arranged in the pipe body 1 and communicates with the plurality of electrode holes 2.

[0037] A negative electrode column 18 is arranged in the soil at a distance from the pipe body 1.

[0038] The main function of the top interlayer assembly and the bottom interlayer assembly is to form a layered structure with the pipe body 1 and form a staggered connection structure at the edge part, so that the two pipe bodies 1 can form a staggered joint when spliced, improving the waterproof performance. The main function of the communication groove assembly is to form a series connection of the plurality of positive electrode columns 16 in the plurality of pipe bodies 1. The main function of the positive electrode column 16 and the negative electrode column 18 is to form an electric field between them, and to use the electric field to move water molecules in the direction of the negative electrode column 18, reduce the movement of water in the soil to the pipe body, and reduce the risk of water leakage. Overall, the present application forms a staggered joint through the top interlayer assembly and the bottom interlayer assembly, which can effectively prolong the flow path of water in the soil into the tunnel, and through the close fit between the top interlayer assembly, the bottom interlayer assembly and the pipe body, the waterproof performance after splicing is improved. At the same time, by arranging the positive electrode column in the pipe body and the negative electrode column in the soil, the water in the soil is drained away from the pipe body by using the principle of electro-osmosis, further reducing the water leakage of the pipe body, and improving the waterproof effect of the pipe body.

[0039] Further optimization scheme, the positive electrode column 16 can be made of titanium metal material with corrosion resistance and conductivity, and the negative electrode column 18 can be made of copper rod or other conductor.

[0040] Further optimization scheme, the communication groove assembly includes two groups of placement grooves 10 arranged on the inner side of the pipe body 1, and the two groups of placement grooves 10 are arranged on the two sides of the pipe body 1 and communicate with the electrode holes 2.

[0041] Further optimization scheme, further comprising a connecting electrode column 17, the connecting electrode column 17 is detachably connected between the head end or tail end of two adjacent positive electrode columns 16, and the connecting electrode column 17 is located in the placement groove 10.

[0042] As Figure 2 and Figure 6As shown, after the positive pole 16 is inserted into the electrode hole 2, in the tube sheet body 1 located at the first and last ends, a positive pole 16 and the same end of the adjacent positive pole 16 on one side are fixedly connected with the upper connecting pole 17, so that the two positive poles 16 are electrically connected, and a positive pole 16 and the other end of the adjacent positive pole 16 on the other side are fixedly connected with the upper connecting pole 17. In turn, the series connection between the plurality of positive poles 16 is formed.

[0043] Further optimization scheme, the top sandwich component includes an upper elastic pad 4, the inner side of the upper elastic pad 4 is attached to the tube sheet body 1, and the outer side of the upper elastic pad 4 is provided with an upper arc-shaped pressing plate 5, the inner side of the upper arc-shaped pressing plate 5 is attached to the outer side wall of the upper elastic pad 4, the edge of the upper arc-shaped pressing plate 5 is flush with the edge of the upper elastic pad 4, and the two adjacent edges of the upper elastic pad 4 protrude from the two adjacent edges of the tube sheet body 1, and the other two adjacent edges of the tube sheet body 1 protrude from the other two adjacent edges of the upper elastic pad 4.

[0044] Further optimization scheme, the bottom sandwich component includes a lower elastic pad 3, the outer side of the lower elastic pad 3 is attached to the inner side of the tube sheet body 1, the inner side of the lower elastic pad 3 is provided with a lower arc-shaped pressing plate 6, the outer side of the lower arc-shaped pressing plate 6 is attached to the inner side of the lower elastic pad 3, and the edge of the lower elastic pad 3 is flush with the edge of the upper elastic pad 4.

[0045] As shown in Figure 1 the two adjacent edges of the upper elastic pad 4 and the lower elastic pad 3 on the same side are located on the inner and outer side walls of the tube sheet body 1, so that the protruding part structure of the tube sheet body 1 is formed, and the other two edges of the upper elastic pad 4 and the lower elastic pad 3 are opposite to the protruding part structure of the tube sheet body 1, so that when assembled, the tube sheet body 1 can be connected in a staggered manner with the four groups of adjacent tube sheet bodies 1.

[0046] Further optimization scheme, the outer side of the lower elastic pad 3 is fixedly connected with two groups of top blocks 13, and the two groups of top blocks 13 are correspondingly arranged with the two groups of placing grooves 10.

[0047] As shown in Figure 2 and Figure 3 after the upper connecting pole 17 is fixedly connected in the placing groove 10, the lower elastic pad 3 is installed, the top block 13 can be used to support the connecting pole 17, so that the disconnection phenomenon between the connecting pole 17 and the positive pole 16 in the use process is avoided.

[0048] Further optimization scheme, the anchor assembly includes a plurality of fixedly connected in the upper arc-shaped pressing plate 5 inside the pull rod 14, the upper elastic pad 4 is provided with a plurality of first through hole 12, the pipe piece body 1 is provided with a plurality of second through hole 19, the lower elastic pad 3 is provided with a plurality of third through hole 20, the lower arc-shaped pressing plate 6 is provided with a plurality of mounting hole 15, a plurality of pull rod 14 away from the upper arc-shaped pressing plate 5 one end is respectively penetrated through a plurality of first through hole 12, a plurality of second through hole 19, a plurality of third through hole 20 and a plurality of mounting hole 15 and can be detachably connected with nut 21, the nut 21 and the bottom of mounting hole 15 are attached.

[0049] As Figure 7 shown, the operator installs the lower elastic pad 3 and the lower arc-shaped pressing plate 6 on a plurality of pull rod 14, utilizes the nut 21 threaded connection in the bottom of pull rod 14 threaded place, and makes the nut 21 tightly attached to the bottom of mounting hole 15, realizes the connection between the lower arc-shaped pressing plate 6 and the pipe piece body 1.

[0050] Further optimization scheme, the two sides of the pipe piece body 1 are respectively provided with a plurality of connecting mechanisms, the connecting mechanism includes the operation hole 11 opened on the inner wall of the pipe piece body 1, the arc-shaped connecting hole 8 is opened on the side wall of the pipe piece body 1 close to the edge of the pipe piece body 1, the other end of the arc-shaped connecting hole 8 penetrates the side wall of the pipe piece body 1, the arc-shaped connecting steel bar is penetrated between two adjacent pipe piece bodies 1 and two arc-shaped connecting holes 8, and the connecting nut is detachably connected to the two ends of the arc-shaped connecting steel bar, and the connecting nut is attached to the side wall of the operation hole 11.

[0051] As Figure 1 and Figure 2 shown, after the two groups of pipe piece bodies 1 are connected, the arc-shaped connecting steel bar is penetrated from one operation hole 11 to two arc-shaped connecting holes 8, so that the two ends of the arc-shaped connecting steel bar are respectively located in two operation holes 11, and the connecting nut is tightened in the two ends of the arc-shaped connecting steel bar in the operation hole 11, realizing the fixed connection between the two pipe piece bodies 1.

[0052] Further optimization scheme, the one side wall of the pipe piece body 1 is fixedly connected with the boss 7, the boss 7 is arranged in parallel with the axis of the pipe piece body 1, the other side wall of the pipe piece body 1 is provided with a recess 9, the recess 9 is arranged in parallel with the axis of the pipe piece body 1, the boss 7 on one pipe piece body 1 is matched with the recess 9 on the adjacent pipe piece body 1.

[0053] As Figure 1 and Figure 2 shown, the boss 7 and the recess 9 can play a guiding role for the installation of the pipe piece body 1, and meanwhile, improve the installation strength and the water-proof performance.

[0054] A water leakage prevention pipe piece laying method for shield based on electro-osmosis, the operation steps include:

[0055] The waterproof pipe piece is laid on the tunnel wall by the laying device, so that the side walls of the adjacent pipe piece bodies 1 are attached to each other, and the protruding parts of the top and bottom interlayer assemblies of one pipe piece body 1 are attached to the protruding parts of the top and bottom interlayer assemblies of the adjacent pipe piece body 1, and the adjacent pipe piece bodies 1 are connected;

[0056] The boss 7 of one pipe piece body 1 is aligned with the groove 9 on the group of pipe piece bodies 1 that have been installed in place by the tunnel pipe piece laying device, and the pipe pieces are installed in place by sliding the pipe piece body 1, and then the arc-shaped connecting steel bars are inserted through the arc-shaped connecting holes 8 and the connecting nuts are tightened to achieve the fixed connection between the pipe pieces.

[0057] After the waterproof pipe piece is laid, a plurality of positive poles 16 are inserted into the electrode holes 2.

[0058] After the pipe piece is laid, a plurality of positive poles 16 are inserted into the electrode holes 2 in sequence from the pipe piece body 1 at one end of the tunnel.

[0059] The lower interlayer assemblies on the pipe piece bodies 1 at both ends are removed by the anchor pulling assembly, and the ends of some positive poles 16 are connected as needed by the communication groove assembly, so that a plurality of positive poles 16 are connected in series.

[0060] The lower arc-shaped pressing plates 6 and the lower elastic pads 3 at both ends of the tunnel are removed by loosening the nuts 21 at both ends of the tunnel, and the connecting poles 17 are installed in a certain order at both ends of a plurality of positive poles 16 to form a series connection between a plurality of positive poles 16. Then, the upper and lower arc-shaped pressing plates 6 and the lower elastic pads 3 are installed.

[0061] Then, the electrode holes 2 are filled with a filling material to enhance conductivity and strengthen the migration effect of moisture.

[0062] Further optimization, the filling material can be a mixture formed by a certain proportion of conductive graphite, polymer cement mortar and water.

[0063] Then, polyurethane is injected again to fill the gaps at the joints of the pipe piece bodies 1 that have not been filled, further enhancing the sealing performance.

[0064] The negative poles 18 are implanted in the soil layer at a certain distance above the tunnel, and the positive poles 16 and the negative poles 18 are connected to the positive and negative poles of the power supply, respectively.

[0065] Example two:

[0066] As shown in Figure 8 The control unit 22 is further provided with a voltage adjusting knob 23, a pulse period adjusting knob 24, a current adjusting knob 25, an electrode pole 26, a display screen 27 and an oscilloscope 28.

[0067] The positive and negative poles 16 and 18 are connected to the positive and negative levels of the electrode pole 26 respectively, during use, the voltage adjusting knob 23 and the pulse period adjusting knob 24 are adjusted, and the waveforms displayed by the oscilloscope 28 are combined, until the waveforms are stable, then the water molecules move to the direction of the negative pole 18 under the action of the electric field, water migration is formed, and the effect of preventing water leakage is achieved.

[0068] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0069] The above-described embodiments are only used to describe the preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application.

Claims

1. A shield tunneling water-proof segment based on electroosmosis, characterized in that: include: A segment body (1), wherein a top sandwich assembly and a bottom sandwich assembly are respectively provided on the inner and outer sides of the segment body (1), the top sandwich assembly and the bottom sandwich assembly are detachably connected via an anchor assembly, and the top sandwich assembly, the bottom sandwich assembly and the segment body (1) are staggered; A plurality of electrode holes (2), wherein the plurality of electrode holes (2) are opened in the tube sheet body (1) along the axial direction of the tube sheet body (1), and the two ends of the plurality of electrode holes (2) respectively penetrate the two side walls of the tube sheet body (1), and the plurality of electrode holes (2) are used to place positive poles (16). A communication groove assembly is also provided in the tube sheet body (1), and the communication groove assembly is connected with the plurality of electrode holes (2); A negative pole (18), the negative pole (18) being arranged in a soil layer at a certain distance from the segment body (1); The communication groove assembly comprises two groups of placement grooves (10) provided on the inner side of the tube segment body (1), the two groups of placement grooves (10) being arranged perpendicular to the axis of the tube segment body (1), and the two groups of placement grooves (10) being arranged on both sides of the tube segment body (1) and communicating with the electrode holes (2); It also includes a connecting pole (17), wherein the connecting pole (17) is detachably connected between the head ends or tail ends of two adjacent positive poles (16), and the connecting pole (17) is located in the placement groove (10); After the positive pole (16) is inserted into the electrode hole (2), in the tube sheet body (1) at the first and last ends, the connecting pole (17) is fixedly connected between the same end of one positive pole (16) and the adjacent positive pole (16) on one side, so that the two positive poles (16) are electrically connected, and the connecting pole (17) is fixedly connected between the other end of one positive pole (16) and the adjacent positive pole (16) on the other side, and the operations are performed sequentially to form a series connection between the plurality of positive poles (16); The top sandwich assembly includes an upper elastic pad (4), the inner side of the upper elastic pad (4) is in contact with the tube segment body (1), an upper arc-shaped pressure plate (5) is provided on the outer side of the upper elastic pad (4), the inner side of the upper arc-shaped pressure plate (5) is in contact with the outer side wall of the upper elastic pad (4), the edge of the upper arc-shaped pressure plate (5) is flush with the edge of the upper elastic pad (4), two adjacent edges of the upper elastic pad (4) extend out of two adjacent edges of the tube segment body (1), and the other two adjacent edges of the tube segment body (1) extend out of the other two adjacent edges of the upper elastic pad (4).

2. The shield tunneling water-proof segment based on electroosmosis according to claim 1, characterized in that: The bottom sandwich assembly includes a lower elastic pad (3), the outer side of the lower elastic pad (3) is in contact with the inner side of the tube segment body (1), and a lower arc-shaped pressure plate (6) is provided on the inner side of the lower elastic pad (3), the outer side of the lower arc-shaped pressure plate (6) is in contact with the inner side of the lower elastic pad (3), and the edge of the lower elastic pad (3) is flush with the edge of the upper elastic pad (4).

3. The shield tunneling water-proof segment based on electroosmosis according to claim 2, characterized in that: Two groups of top blocks (13) are fixedly connected to the outer side of the lower elastic pad (3), and the two groups of top blocks (13) are respectively arranged corresponding to the two groups of placement grooves (10).

4. The shield tunneling water-proof segment based on electroosmosis according to claim 2, characterized in that: The anchor assembly includes a plurality of pull rods (14) fixedly connected to the inner side of the upper arc-shaped pressure plate (5), a plurality of first through holes (12) are provided on the upper elastic pad (4), a plurality of second through holes (19) are provided on the tube segment body (1), a plurality of third through holes (20) are provided on the lower elastic pad (3), and a plurality of mounting holes (15) are provided on the lower arc-shaped pressure plate (6). The ends of the plurality of pull rods (14) away from the upper arc-shaped pressure plate (5) respectively pass through the plurality of first through holes (12), the plurality of second through holes (19), the plurality of third through holes (20) and the plurality of mounting holes (15) and are detachably connected with nuts (21), and the nuts (21) are in contact with the bottoms of the mounting holes (15).

5. The shield tunneling water-proof segment based on electroosmosis according to claim 1, characterized in that: A plurality of connection mechanisms are respectively provided on both sides of the segment body (1), wherein the connection mechanisms include an operation hole (11) provided on the inner side wall of the segment body (1), one end of an arc-shaped connection hole (8) is provided on the side wall of the operation hole (11) close to the edge of the segment body (1), and the other end of the arc-shaped connection hole (8) passes through the side wall of the segment body (1), and an arc-shaped connection steel bar passes through the two mutually connected arc-shaped connection holes (8) between two adjacent segment bodies (1), and the two ends of the arc-shaped connection steel bar are respectively detachably connected with connection nuts, and the connection nuts are fitted with the side wall of the operation hole (11).

6. The shield tunneling water-proof segment based on electroosmosis according to claim 1, characterized in that: A boss (7) is fixedly connected to one side wall of the tube segment body (1), and the boss (7) is arranged parallel to the axis of the tube segment body (1). A groove (9) is opened on the other side wall of the tube segment body (1), and the groove (9) is arranged parallel to the axis of the tube segment body (1). The boss (7) on one tube segment body (1) is adapted to the groove (9) on the adjacent tube segment body (1).

Images