Waterproof structure for subway tunnel construction
By setting inclined transverse splicing joints and herringbone sealing strips in the subway tunnel, combined with expanding rubber strips, a diversion channel is formed to guide the seepage water to the water collection tank at the bottom of the tunnel, thus solving the problem of water leakage between subway segments and achieving a highly efficient waterproofing effect.
Patent Information
- Application Number
- CN202520119172.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-17
AI Technical Summary
The existing subway tunnel segments have poor sealing, leading to frequent water leakage.
The design incorporates inclined transverse splicing joints and herringbone sealing strips combined with expanded rubber strips to form transverse and longitudinal diversion channels, guiding and collecting water flow to the water collection trough at the bottom of the tunnel.
It effectively prevents the long-term accumulation of leaking water, improves the waterproofing effect of subway tunnels, and ensures that water is promptly diverted and discharged.
Smart Images
Figure CN223594195U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tunnel waterproof technology field especially relates to a subway tunnel construction waterproof structure. BACKGROUND
[0002] Subway tunnel construction is through subway pipe piece and is assembled, and the subway pipe piece is made piece by piece, and each ring pipe piece of the subway pipe piece is composed of six pieces, which are three standard pieces, two adjacent pieces and one top sealing piece, and each ring pipe piece is spliced with each other, and the waterproof between the subway pipe pieces affects the overall waterproof of the subway tunnel, so it is particularly important. The current waterproof between the subway pipe pieces is through the sealing rubber arranged on the splicing surface of the subway pipe piece, and when two subway pipe pieces are spliced, the sealing rubber is extruded to realize the sealing between the subway pipe pieces. However, although this kind of sealing has a certain sealing effect, the effect is not good, and there is still some water leakage. CONTENT OF THE UTILITY MODEL
[0003] The utility model discloses a subway tunnel construction waterproof structure, this subway tunnel construction waterproof structure passes through the horizontal splicing joint waterproof structure and the longitudinal splicing joint waterproof structure, thereby avoid the leakage water of subway tunnel long -time accumulation in the splicing joint, cause part leakage water to enter to the inside of subway tunnel.
[0004] In order to realize the above-mentioned purpose, the technical scheme of the utility model is:
[0005] A subway tunnel construction waterproof structure, including horizontal splicing joint waterproof structure and longitudinal splicing joint waterproof structure, the horizontal splicing joint waterproof structure is installed on the horizontal splicing joint inside ring pipe piece, the longitudinal splicing joint waterproof structure is installed on the longitudinal splicing joint of ring pipe piece, the horizontal splicing joint waterproof structure includes the horizontal splicing joint of inclination setting, the horizontal splicing joint from the ring pipe piece one side inclination to the other side, the shield pipe piece on the both sides of the horizontal splicing joint is provided with horizontal installation groove, the horizontal installation groove is installed with sealing rubber strip, and the sealing rubber strip on the both sides of the shield pipe piece is extruded each other, the longitudinal splicing joint waterproof structure includes the longitudinal installation groove setting on the ring pipe piece and ring pipe piece splicing surface, and the longitudinal installation groove is installed with the herringbone sealing strip, the herringbone sealing strip includes left arc segment and right arc segment, the left arc segment and the right arc segment are respectively inserted into the adjacent longitudinal installation groove and abut on the inner wall of the longitudinal installation groove, the middle position of the left arc segment and the right arc segment is provided with sealing straight section, the sealing straight section is clamped between the adjacent shield pipe piece, and the longitudinal flow channel surrounded by the left arc segment and the right arc segment.
[0006] The back of the left arc-shaped section or the right arc-shaped section close to one side of the sealing straight section is provided with an expansion rubber strip between the sealing straight section and the longitudinal installation slot, and the expansion rubber strip is water-expanding rubber.
[0007] The upper portion of the transverse installation slot is provided with a notch, and the notch forms a transverse flow guide channel.
[0008] The lowest points of the transverse flow guide channels of the left and right adjacent ring pipe pieces are not intersected.
[0009] The bottom of the longitudinal flow guide channel is communicated with the water collecting groove.
[0010] After the above technical scheme is adopted, the metro tunnel construction waterproof structure has the following beneficial effects:
[0011] The utility model relates to a metro tunnel construction waterproof structure, including transverse splicing joint waterproof structure and longitudinal splicing joint waterproof structure, transverse splicing joint waterproof structure installs in the transverse splicing joint inside ring pipe piece, longitudinal splicing joint waterproof structure installs on the longitudinal splicing joint of ring pipe piece, transverse splicing joint waterproof structure includes the transverse splicing joint of inclination arrangement, the transverse splicing joint is from the ring pipe piece one side inclination to the other side, the shield pipe piece on the both sides of transverse splicing joint is provided with transverse installation slot, the transverse installation slot is installed with sealing rubber strip, and the sealing rubber strip on the both sides of shield pipe piece is extruded each other, longitudinal splicing joint waterproof structure includes the longitudinal installation slot of setting on the ring pipe piece and ring pipe piece splicing surface, and the longitudinal installation slot is installed with the herringbone seal strip, and the herringbone seal strip includes left arc-shaped section and right arc-shaped section, left arc-shaped section and right arc-shaped section are in adjacent longitudinal installation slot respectively and are in abutment on the inner wall of longitudinal installation slot, the middle position of left arc-shaped section and right arc-shaped section is provided with sealing straight section, and sealing straight section is clamped between adjacent shield pipe piece, and the longitudinal flow guide channel surrounded by left arc-shaped section and right arc-shaped section, by setting up the transverse splicing joint of inclination, thereby prevent the long -time accumulation of seepage water in the transverse splicing joint, and the transverse splicing joint of inclination plays the flow guide effect to water, by setting up the herringbone seal strip, and the longitudinal flow guide channel surrounded by herringbone seal strip also plays the flow guide effect to water, thereby flow guide seepage water to the tunnel bottom, thereby avoid the long -time accumulation of leakage water, causes the seepage of metro tunnel.
[0012] The back of the left arc-shaped section or the right arc-shaped section near the side close to the sealing straight section is provided with an expansion rubber strip between the longitudinal installation groove, and the expansion rubber strip is water-expanding rubber, so that when part of the water seeps from the side of the herringbone sealing strip and breaks through the herringbone sealing strip, the water-expanding rubber expands after meeting water, so as to extrude the left arc-shaped section or the right arc-shaped section and press against the upper wall of the longitudinal installation groove, thereby improving the water seepage prevention effect of the herringbone sealing strip, and the water-expanding rubber after expansion cooperates with the longitudinal installation groove and the herringbone sealing strip, so that the reinforced sealing effect is realized.
[0013] The water diversion effect is improved through the setting of the transverse diversion channel.
[0014] The lowest points of the transverse diversion channels of the left and right adjacent ring segments do not intersect, so that the water diversion effect is improved.
[0015] The tunnel bottom is provided with a water collecting groove, and the water in the longitudinal diversion channel is collected into the water collecting groove, so that the water is conveniently discharged.
[0016] In summary, the subway tunnel construction waterproof structure solves the technical problem of poor waterproof effect between subway shield segments in the prior art, and the inclined transverse joint is set, so that the seepage water is prevented from being accumulated in the transverse joint for a long time, and the inclined transverse joint plays a water diversion role; the herringbone sealing strip is set, and the longitudinal diversion channel of the herringbone sealing strip also plays a water diversion role, so that the seepage water is diverted to the tunnel bottom, thereby avoiding the long-term accumulation of the seepage water and causing the subway tunnel to seep. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is a structural schematic view of the subway tunnel construction waterproof structure of the utility model;
[0018] Figure 2 is Figure 1 A-A sectional view in the figure;
[0019] Figure 3 is a sectional view of the transverse diversion channel;
[0020] Figure 4 is a sectional view of the longitudinal diversion channel;
[0021] Figure 5 is a sectional view of the water collecting groove;
[0022] In the figure: 1, ring pipe piece, 2, transverse joint seam, 21, transverse guide channel, 3, longitudinal joint seam, 31, longitudinal guide channel, 4, transverse installation slot, 41, sealing rubber strip, 5, longitudinal installation slot, 6, chevron seal strip, 61, left arc segment, 62, right arc segment, 63, sealing straight segment, 7, expanded rubber strip, 8, water collecting groove, 81, communication port. DETAILED DESCRIPTION
[0023] The utility model is further explained below in combination with the drawings and examples.
[0024] The directions referred to in the specification are based on the directions shown in the drawings and only represent relative positional relationships and do not represent absolute positional relationships.
[0025] As Figure 1 and Figure 2 Commonly shown, the subway tunnel is formed by shield pipe piece splicing, generally first spliced into a ring pipe piece 1 by shield pipe pieces, and then a plurality of ring pipe pieces 1 are spliced into the subway tunnel. Each ring pipe piece 1 is composed of six shield pipe pieces, which are three standard blocks, two adjacent blocks and one top block, and the six shield pipe pieces are spliced two by two to form the ring pipe piece 1. The bottom of the subway tunnel is provided with a water collecting groove 8, which guides the water in the gap between adjacent ring pipe pieces 1 out of the subway tunnel.
[0026] A subway tunnel construction waterproof structure, comprising a transverse joint seam waterproof structure and a longitudinal joint seam waterproof structure, the transverse joint seam waterproof structure is installed on the transverse joint seam 2 inside the ring pipe piece 1, that is, on the transverse joint seam 2 spliced two by two in the six shield pipe pieces. The longitudinal joint seam waterproof structure is installed on the longitudinal joint seam 3, that is, the longitudinal joint seam 3 between the ring pipe piece 1 and the ring pipe piece 1.
[0027] As Figure 2 and Figure 3 Commonly shown, the transverse joint seam waterproof structure comprises an inclined transverse joint seam 2, which is inclined from the left longitudinal joint seam 3 of the ring pipe piece 1 to the right longitudinal joint seam 3 of the ring pipe piece 1. The shield pipe piece is provided with a transverse installation slot 4, and the transverse installation slot 4 is provided with a sealing rubber strip 41, which is pressed against each other, thereby realizing the sealing of the transverse joint seam 2, and the inclined transverse joint seam 2 realizes the guide effect and does not cause the accumulation of water flow.
[0028] In order to increase the guide effect of the liquid, a notch is arranged above the transverse installation slot 4, and the notch forms a transverse guide channel 21. Because the pressure of the transverse guide channel 21 is smaller after the water enters the transverse joint seam, the water will preferentially flow outward along the transverse guide channel 21, and will not penetrate inward through the sealing rubber strip 41.
[0029] AsFigure 4 As shown in the figure, the longitudinal joint seam waterproof structure comprises longitudinal installation grooves 5 arranged on the joint surface of the annular segments 1, and the longitudinal installation grooves 5 are installed with chevron-shaped sealing strips 6, the chevron-shaped sealing strips 6 comprise left arc-shaped sections 61 and right arc-shaped sections 62, the left arc-shaped sections 61 and the right arc-shaped sections 62 respectively extend into the longitudinal installation grooves 5 of the adjacent annular segments 1 and abut against the inner walls of the longitudinal installation grooves 5, and the middle positions of the left arc-shaped sections 61 and the right arc-shaped sections 62 are provided with sealing straight sections 63, the sealing straight sections 63 are clamped between the adjacent shield segments, and the longitudinal flow channels 31 surrounded by the left arc-shaped sections 61 and the right arc-shaped sections 62 are directed towards the outside of the tunnel. The side of the back surface of the left arc-shaped section 61 or the right arc-shaped section 62 close to the sealing straight section 63 is provided with an expansion rubber strip 7 between the longitudinal installation groove 5, and the expansion rubber strip 7 is water-expanding rubber. The transverse flow channels 21 are communicated with the longitudinal flow channels 31, so as to collect the water in the transverse flow channels 21 into the longitudinal flow channels 31. The lowest points of the transverse flow channels 21 of the left and right adjacent annular segments 1 do not intersect.
[0030] As shown in the figure, Figure 5 The tunnel bottom is provided with a water collecting groove 8, the longitudinal joint seam 3 is collected into the water collecting groove 8, the bottom shield segment of the annular segment 1 is provided with a communication port 81, the communication port 81 communicates the longitudinal flow channel 31 and the water collecting groove 8, so that the water in the longitudinal flow channel 31 can flow into the water collecting groove 8 through the communication port 81.
[0031] As shown in the figure, Figure 1 , Figure 2 , Figure 3 and Figure 4 The adjusting process of the subway tunnel construction waterproof structure is shown in the figures.
[0032] After the infiltration water falls into the tunnel, the infiltration water entering into the transverse flow channels 21 is collected into the longitudinal flow channels 31 through flow guiding, and the water entering into the longitudinal flow channels 31 is guided into the water collecting groove 8 and transported away.
[0033] The subway tunnel construction waterproof structure solves the technical problem of poor waterproof effect between the subway shield segments in the prior art, the inclined transverse joint seam is arranged, so as to prevent the infiltration water from being accumulated in the transverse joint seam for a long time, and the inclined transverse joint seam plays a role of water flow guiding; the chevron-shaped sealing strip is arranged, and the longitudinal flow channel of the chevron-shaped sealing strip also plays a role of water flow guiding, so as to guide the infiltration water to the bottom of the tunnel, thereby avoiding the long-time accumulation of the infiltration water and causing the water seepage of the subway tunnel.
[0034] The utility model is not limited to the above specific implementation, and the ordinary skilled in the art can make various changes without creative labor based on the above concept, and all the changes fall within the protection scope of the utility model.
Claims
1. A waterproof structure for subway tunnel construction, characterized in that: The waterproof structure comprises a transverse joint waterproof structure and a longitudinal joint waterproof structure, the transverse joint waterproof structure is installed on the transverse joint inside the ring pipe piece, and the longitudinal joint waterproof structure is installed on the longitudinal joint of the ring pipe piece; the transverse joint waterproof structure comprises a transverse joint arranged obliquely, the transverse joint is obliquely arranged from one side of the ring pipe piece to the other side, the transverse joint is provided with a transverse installation groove on the shield pipe piece on the two sides of the transverse joint, a sealing rubber strip is installed in the transverse installation groove, and the sealing rubber strips on the two sides of the shield pipe piece are pressed against each other; the longitudinal joint waterproof structure comprises a longitudinal installation groove arranged on the ring pipe piece and the joint surface of the ring pipe piece, a herringbone-shaped sealing strip is installed in the longitudinal installation groove, the herringbone-shaped sealing strip comprises a left arc-shaped section and a right arc-shaped section, the left arc-shaped section and the right arc-shaped section respectively extend into the adjacent longitudinal installation grooves and abut against the inner walls of the longitudinal installation grooves, a sealing straight section is arranged at the middle positions of the left arc-shaped section and the right arc-shaped section, the sealing straight section is clamped between the adjacent shield pipe pieces, and a longitudinal flow guide channel is enclosed by the left arc-shaped section and the right arc-shaped section.
2. The waterproof structure for subway tunnel construction according to claim 1, characterized in that: The back of the left arc-shaped section or the right arc-shaped section is provided with an expansion rubber strip between the side close to the sealing straight section and the longitudinal installation groove, and the expansion rubber strip is water-expanding rubber.
3. The waterproof structure for subway tunnel construction according to claim 2, characterized in that: A notch is arranged above the transverse installation groove, the notch forms a transverse flow guide channel, and the transverse flow guide channel is communicated with the longitudinal flow guide channel.
4. The waterproof structure for subway tunnel construction according to claim 3, characterized in that: The lowest points of the transverse flow guide channels of the left and right adjacent ring pipe pieces do not intersect.
5. The waterproof structure for subway tunnel construction according to claim 4, characterized in that: A water collecting groove is arranged at the bottom of the tunnel, and the bottom of the longitudinal flow guide channel is communicated with the water collecting groove.