A tunnel segment radial cross gasket includes a base side or face and a top side or face. A plurality of longitudinally extending spaced parallel grooves are disposed on the base side. One or more longitudinally oriented bores, which are spaced from each other, extend through the gasket. The top fac
A tunnel segment radial cross gasket includes a base side or face and a top side or face. A plurality of longitudinally extending spaced parallel grooves are disposed on the base side. One or more longitudinally oriented bores, which are spaced from each other, extend through the gasket. The top face of the gasket includes first and second sections, with the second section being tapered or angled in relation to the first section.
대표청구항▼
1. A tunnel segment cross gasket comprising: a gasket body including a bottom face configured to be positioned against a surface of an associated tunnel segment, a top face located opposite the bottom face and including a tapered portion and a sealing portion, the sealing portion being adapted for s
1. A tunnel segment cross gasket comprising: a gasket body including a bottom face configured to be positioned against a surface of an associated tunnel segment, a top face located opposite the bottom face and including a tapered portion and a sealing portion, the sealing portion being adapted for sealing against an adjacent surface, a left face extending between the bottom face and the top face, and a right face extending between the bottom face and the top face;wherein the gasket includes a plurality of spaced grooves opening to the bottom face;wherein a plurality of bores extend through the gasket body, at least two of the plurality of bores having different cross-sectional shapes or sizes, and at least one of the plurality of bores being located entirely between the tapered portion of the top face and the bottom face; andwherein the top face includes a portion thereof that is oriented parallel with the bottom face when the gasket is in an uncompressed state, and a portion thereof that is angled with respect to the bottom face when the gasket is in the uncompressed state such that the left face is larger than the right face. 2. The tunnel segment cross gasket of claim 1, wherein the cross-sectional shapes of the plurality of bores include at least one of a triangular shape, a semi-circular shape, or a trapezoidal shape. 3. The tunnel segment cross gasket of claim 1, wherein the cross-sectional shapes of the plurality of bores include each of a triangular shape, a semi-circular shape, and a trapezoidal shape. 4. The tunnel segment cross gasket of claim 1, wherein the grooves and bores extend in a common direction. 5. The tunnel segment cross gasket of claim 1, wherein a larger number of bores are located between the bottom surface and the portion of the top face that is parallel with the bottom face, than between the bottom face and the angled portion of the top face. 6. The tunnel segment cross gasket of claim 1, wherein the left face includes a first section that tapers outwardly away from the bottom face and a second section that is concave from the first section to the top face. 7. The tunnel segment cross gasket of claim 1, wherein the grooves opening to the bottom face are uniform in shape and size. 8. The tunnel segment cross gasket of claim 1, wherein the tunnel gasket body comprises ethylene propylene diene monomer (EPDM) rubber. 9. A tunnel segment for a tunnel ring composed of a plurality of tunnel segments, the tunnel segment comprising: a tunnel segment body;a groove located in a radial surface of the tunnel segment body; anda tunnel gasket disposed in the groove;wherein the tunnel gasket includes a gasket body having a bottom face positioned against a surface of the groove, a top face located opposite the bottom face and including a portion angled with respect to the bottom face when the gasket is in an uncompressed state and a portion oriented parallel with the bottom face when the gasket is in the uncompressed state for sealing against a surface of an adjacent tunnel segment, a left face extending between the bottom face and the top face, a right face extending between the bottom face and top face wherein the left face is larger than the right face when the gasket is in the uncompressed state, a plurality of spaced grooves opening to the bottom face, and a plurality of bores extending through the gasket body, at least two of the plurality of bores having different cross-sectional shapes or sizes, and at least one of the bores being located entirely between the angled portion of the top face and the bottom face. 10. The tunnel segment of claim 9, wherein the cross-sectional shapes of the plurality of bores include at least one of a triangular shape, a semi-circular shape, and a trapezoidal shape. 11. The tunnel segment of claim 9, wherein the cross-sectional shapes of the plurality of bores include each of a triangular shape, a semi-circular shape, and a trapezoidal shape. 12. The tunnel segment of claim 9, wherein the grooves and bores extend in a common direction. 13. The tunnel segment of claim 9, wherein a larger number of bores are located between the bottom face and the portion of the top face that is oriented parallel with the bottom face, than between the bottom face and the angled portion of the top face. 14. A sealing system for sealing adjacent precast tunnel segments that can be installed by longitudinally translating the segments into position, the sealing system comprising: first and second tunnel segment gaskets, each of the first and second tunnel segment gaskets comprising a gasket body including a bottom face configured to be positioned on a radial face of an associated respective tunnel segment, a top face located opposite the bottom face wherein the top face includes a portion thereof that is oriented parallel with the bottom face when the gasket is in an uncompressed state, and a portion thereof that is angled with respect to the bottom face when the gasket is in the uncompressed state, the top face being adapted for sealing against the top face of the other gasket, a left face extending between the bottom face and the top face, and a right face extending between the bottom face and top face, a plurality of spaced grooves opening to the bottom face, and a plurality of bores which extend through the gasket body, at least two of the plurality of bores having different cross-sectional shapes or sizes, and at least one of the bores being located entirely between the tapered portion of the top face and the bottom face; andwhereby when the first and second gaskets are installed in opposite orientations in radial grooves in respective adjacent tunnel segments, the tunnel segments can be longitudinally translated in an axial direction into position such that the angled surfaces of each tunnel gasket top face make initial contact with each other before the top faces of the first and second gaskets are fully aligned. 15. The sealing system of claim 14, wherein the cross-sectional shapes of the plurality of bores of at least one of the first and second gaskets include at least one of a triangular shape, a semi-circular shape, and a trapezoidal shape. 16. The sealing system of claim 14, wherein the cross-sectional shapes of the plurality of bores of at least one of the gaskets include each of a triangular shape, a semi-circular shape, or a trapezoidal shape. 17. The sealing system of claim 14, wherein the grooves and bores of at least one of the first and second gaskets extend in a common direction. 18. A method of assembling a tunnel ring composed of a plurality of tunnel segments, a final segment of which being longitudinally translated into position between adjacent tunnel segments, the method comprising: providing a final segment including a radial cross gasket having a gasket body with a bottom face positioned against a bottom surface of a groove in a radial surface of the final segment, a top face located opposite the bottom face for sealing against a surface of an adjacent tunnel segment wherein the top face includes a portion thereof that is oriented parallel with the bottom face when the gasket is in an uncompressed state, and a portion thereof that is angled with respect to the bottom face when the gasket is in the uncompressed state, a left face extending between the bottom face and the top face, a right face extending between the bottom face and top face wherein the left face is larger than the right face when the gasket is in the uncompressed state, a plurality of spaced grooves opening to the bottom face, and a plurality of bores which extend through the gasket body, at least two of the plurality of bores having different cross-sectional shapes or sizes; andlongitudinally translating the final segment into position to complete the tunnel ring.
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이 특허에 인용된 특허 (17)
Carson Forrest L. (Borger TX) Johnson Kenneth M. (Borger TX), Coupling with improved elastomeric face seal.
Grabe Werner,DEX ; Glang Siegfried,DEX ; Gutschmitd Holger,DEX ; Bernard Simon,FRX ; Haye Bruno,FRX ; Pallot Pierre,FRX, Seal and process for producing such seal.
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