CN211287701U - Segment waterproof sealing gasket and shield segment waterproof structure - Google Patents
Segment waterproof sealing gasket and shield segment waterproof structure Download PDFInfo
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- CN211287701U CN211287701U CN201921221185.3U CN201921221185U CN211287701U CN 211287701 U CN211287701 U CN 211287701U CN 201921221185 U CN201921221185 U CN 201921221185U CN 211287701 U CN211287701 U CN 211287701U
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Abstract
The utility model belongs to the technical field of civil engineering, concretely relates to section of jurisdiction waterproof sealing pad, including the sealing pad body, the sealing pad body has installation end and extrusion end, and this internal reinforced material that is equipped with of sealing pad. The utility model also provides a shield segment waterproof structure, the waterproof grooves of two shield segments are arranged oppositely; sealing gaskets are arranged in all the waterproof grooves, and at least one sealing gasket is the segment waterproof sealing gasket; the extrusion end of the sealing gasket body on the shield segment provided with the segment waterproof sealing gasket and the extrusion end of the sealing gasket on the other shield segment are mutually extruded and sealed. The utility model discloses a mode that adds the muscle inside existing gasket body improves the ability of sealed pad to resist the deformation under the frictional force effect, effectively reduces the sealed deformation of filling up under the contact surface frictional force effect to effectively alleviate wrong platform phenomenon, show the waterproof ability that improves the shaping shield tunnel.
Description
Technical Field
The utility model belongs to the technical field of civil engineering, concretely relates to section of jurisdiction waterproof sealing pad and shield construct section of jurisdiction waterproof construction.
Background
At present, an elastic sealing gasket for water prevention of a shield segment structure is generally made of ethylene propylene diene monomer or chloroprene rubber. In the segment assembling process, under the action of the rotating torque of the segment assembling machine, the sealing gaskets of the longitudinal seams of the segments are compacted, the segment structure longitudinally slides in place under the thrust action of a jack, and then the segments are locked by connecting bolts to complete segment assembling. In the assembling process, a large friction force exists between contact surfaces of the crowded longitudinal seam sealing gaskets, the sealing gaskets of the duct pieces assembled firstly can generate displacement opposite to the tunneling direction of the shield under the action of the friction force, and the sealing gaskets of the duct pieces assembled later can generate displacement consistent with the tunneling direction of the shield under the action of the friction force, so that the longitudinal seam sealing gaskets at the corners of the duct pieces can generally generate dislocation in the assembling process, even if a mode of coating a drag reducer is adopted, the phenomenon can not be completely eliminated, the waterproof capacity of the duct piece structure is weakened, corner leakage water even occurs, and the durability and the normal service performance of the shield tunnel are influenced.
Disclosure of Invention
In order to overcome the not enough of above-mentioned prior art existence, the utility model aims at providing a section of jurisdiction waterproof sealing pad and shield structure section of jurisdiction waterproof construction, through the inside mode that adds the muscle at existing gasket body, improve sealed ability of filling up and resisting the deformation under the frictional force effect, effectively reduce sealed deformation of filling up under the contact surface frictional force effect to effectively alleviate wrong platform phenomenon, show the waterproof ability that improves the shaping shield tunnel.
In order to achieve the above object, the technical scheme of the utility model is a segment waterproof gasket, including the gasket body, the gasket body has the waterproof ditch inslot of protractile shield structure section of jurisdiction install the end and can with the sealed extruded extrusion end of pad cooperation of another shield structure section of jurisdiction, this internal reinforced material that is equipped with of gasket.
Further, the reinforced material is arranged inside the extrusion end of the sealing gasket body.
Further, the reinforced material comprises longitudinal ribs arranged along the length direction of the sealing gasket body.
Furthermore, the longitudinal ribs are multiple, and the multiple longitudinal ribs are arranged at intervals along the width direction of the sealing gasket body.
Furthermore, the reinforced material further comprises a plurality of transverse ribs arranged along the length direction of the sealing gasket body at intervals, and the transverse ribs and the longitudinal ribs are connected to form a net structure.
Further, the reinforced material is a high elastic modulus material.
Further, one side of the sealing gasket body, which is attached to the bottom surface of the waterproof groove, is provided with a groove with an opening facing the shield segment.
Furthermore, a plurality of through holes are formed in the sealing gasket body, the through holes are arranged along the length direction of the sealing gasket body, and the through holes are located between the reinforced material and the grooves.
Furthermore, the through holes comprise a plurality of first holes and a plurality of second holes, and the second holes are arranged above the space between every two adjacent first holes.
Furthermore, third holes are arranged above the outer sides of the first holes on two sides.
The utility model also provides a shield segment waterproof structure, which comprises two shield segments, and the waterproof grooves of the two shield segments are arranged oppositely; sealing gaskets are arranged in the waterproof grooves, and at least one sealing gasket is the segment waterproof sealing gasket; and the extrusion end of the sealing gasket body on the shield segment provided with the segment waterproof sealing gasket and the extrusion end of the sealing gasket on the other shield segment are mutually extruded and sealed.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model improves the deformation resistance of the sealing gasket under the action of friction force in a manner of adding ribs inside the existing sealing gasket body, and effectively reduces the deformation of the sealing gasket under the action of the friction force of the contact surface, thereby effectively relieving the wrong platform phenomenon and obviously improving the waterproof capability of the forming shield tunnel;
(2) the pipe piece waterproof sealing gasket provided by the utility model adds the reinforcing material in the extrusion end of the sealing gasket body used for being extruded by matching with the sealing gasket of another shield pipe piece, so that when the pipe piece structure slides in the longitudinal direction, the deformation of the sealing gasket body is reduced, thereby relieving the wrong platform;
(3) the utility model provides a this internal reinforced material of gasket of section of jurisdiction waterproof sealing pad includes the vertical muscle that sets up along the length direction of gasket body, and is unanimous with the direction of sliding of section of jurisdiction structure, reduces the deformation of gasket body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a cross-sectional view of a conventional waterproof gasket;
FIG. 2 is a cross-sectional view of a tube sheet waterproof gasket according to an embodiment of the present invention;
in the figure: 1. the sealing gasket body, 2, reinforced material, 3, recess, 4, first hole, 5, second hole, 6, third hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, 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, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 2, the embodiment of the utility model provides a section of jurisdiction waterproof sealing gasket, including sealed pad body 1, sealed pad body 1 has the waterproof ditch inslot of protractile shield structure section of jurisdiction the installation end and can with the sealed extruded extrusion end of pad cooperation of another shield structure section of jurisdiction, be equipped with reinforced material 2 in the sealed pad body 1. This embodiment improves the ability that sealed pad resisted the deformation under the frictional force effect through the mode that adds the muscle in existing sealing pad body inside, effectively reduces sealed pad deformation under the contact surface frictional force effect to effectively alleviate wrong platform phenomenon, show the waterproof ability that improves shaping shield tunnel.
Further, the reinforcement material 2 is disposed inside the extrusion end of the gasket body 1. The installation end of the sealing gasket body 1 of this embodiment sets up with the extrusion end relatively, through the inside increase reinforced material at the extrusion end for when the section of jurisdiction structure slided on vertical, the deformation of sealing gasket body reduced, thereby alleviated the wrong platform.
Further, the reinforcing material 2 includes a longitudinal rib provided along the length direction of the gasket body 1. Furthermore, it has many to indulge the muscle, and many are indulged the muscle and are followed the width direction interval of sealing pad body 1 sets up, as shown in fig. 2, specifically indulge the number of muscle and set up according to actual need. The vertical bar that the length direction along the sealing pad body in the sealing pad body of this embodiment set up is unanimous with the direction of sliding of section of jurisdiction structure, reduces the deformation of sealing pad body.
Furthermore, reinforced material 2 still includes along many horizontal muscle that the length direction interval of sealing pad body 1 set up, and many horizontal muscle are connected with many vertical muscle and are formed network structure. This embodiment can also be through addding along horizontal muscle, link into whole with many vertical muscle through horizontal muscle, improve holistic anti deformability.
Further, the reinforced material 2 is a high elastic modulus material; the reinforcement material 2 in this embodiment is a material having an elastic modulus greater than that of rubber, and may be a steel bar, a nylon rope, or another material having a high elastic modulus.
Further, the mounting end of the sealing gasket body 1 is provided with a groove 3 with an opening facing away from the extrusion end. The line of the mid point on the upper and lower limit of the cross section of the sealed gasket body 1 of this embodiment is the symmetry axis of this sealed gasket body 1, and a plurality of recesses 3 are the symmetric distribution in the both sides of symmetry axis, as shown in fig. 2, and one side of laminating with the bottom surface of the waterproof groove on the sealed gasket body 1 is equipped with the recess 3 of four U-shaped of opening orientation shield pipe piece, and every side of symmetry axis all is equipped with two recesses 3.
Furthermore, a plurality of through holes are arranged in the sealing gasket body 1, the through holes are arranged at intervals along the length direction of the sealing gasket body 1, and the through holes are positioned between the antifriction material layer and the grooves 3; the plurality of through holes of the present embodiment are symmetrical with respect to the symmetry axis. Furthermore, the through holes comprise a plurality of first holes 4 and a plurality of second holes 5, and the second holes 5 are arranged above the space between every two adjacent first holes 4; third holes 6 are arranged above the outer sides of the first holes 4 on the two sides. As shown in fig. 2, three first holes 4, two second holes 5, and two third holes 6 are provided in the gasket body 1 of the present embodiment, the two second holes 5 are respectively located above the middle first hole 4 and the first holes 4 on both sides thereof, the middle first hole 4 is symmetrical with respect to the symmetry axis, and the third holes 6 are located outside the first holes 4 on both sides.
Further, the cross section of the first hole 4 is triangular, and the cross section of the second hole 5 is inverted triangular. As shown in fig. 2, the first holes 4 and the second holes 5 have the same size, the second holes 5 are located right above and between two adjacent first holes 4, and the bottoms of the second holes 5 are inserted between the two first holes 4. The third hole 6 in this embodiment has an irregular oval shape in cross-section, and the third hole 6 is smaller in size than the first hole 4 and the second hole 5, as shown in fig. 2.
The extrusion end of the sealing gasket body 1 of the waterproof sealing gasket of the segment of the embodiment is used for being matched with the extruded extrusion end surface of the sealing gasket of another shield segment, and can also be provided with an antifriction material layer, so that the friction coefficient between the contact surfaces of the waterproof sealing gasket of the segment is effectively reduced, the phenomenon of wrong platforms is further relieved, and the waterproof capacity of the forming shield tunnel is improved more remarkably. The thickness of the anti-friction material layer is 0.1-1 mm, and the anti-friction material layer can be a sheet made of polytetrafluoroethylene or a sheet made of a high polymer material with the same or similar friction coefficient with the polytetrafluoroethylene sheet. The antifriction material layer can adopt multiple mode to be fixed in the upper surface of sealed pad body 1 in this embodiment, preferably, the antifriction material layer with sealed pad body 1 vulcanizes in step, one shot forming, perhaps the antifriction material layer paste in the surface of sealed pad body 1 reduces the section of jurisdiction waterproof sealing pad and the frictional force of section of jurisdiction waterproof sealing pad contact, does benefit to section of jurisdiction structure and takes one's place along vertical sliding, avoids sealed pad body 1 to appear staggering in the process of assembling.
The utility model also provides a shield segment waterproof structure, which comprises two shield segments, and the waterproof grooves of the two shield segments are arranged oppositely; sealing gaskets are arranged in the waterproof grooves, and at least one sealing gasket is the segment waterproof sealing gasket; the extrusion end of the sealing gasket body 1 on the shield segment provided with the segment waterproof sealing gasket and the extrusion end of the sealing gasket on the other shield segment are mutually extruded and sealed. The waterproof sealing gasket of the duct piece can be matched with a common sealing gasket or the sealing gasket provided by the embodiment for use.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a section of jurisdiction waterproof sealing pad, includes the gasket body, the gasket body has the installation end that can stretch into in the waterproof ditch inslot of shield structure section of jurisdiction and can with the sealed extruded extrusion end of pad cooperation of another shield structure section of jurisdiction, its characterized in that: the sealing pad body is internally provided with a reinforced material.
2. A gasket according to claim 1, wherein: the reinforced material is arranged in the extrusion end of the sealing gasket body.
3. A gasket according to claim 1 or 2, wherein: the reinforced material comprises longitudinal ribs arranged along the length direction of the sealing gasket body.
4. A gasket according to claim 3, wherein: the longitudinal ribs are provided with a plurality of longitudinal ribs which are arranged at intervals along the width direction of the sealing pad body.
5. The waterproof gasket for tube sheets according to claim 4, wherein: the reinforced material further comprises a plurality of transverse ribs arranged at intervals in the length direction of the sealing pad body, and the transverse ribs and the longitudinal ribs are connected to form a net structure.
6. A gasket according to claim 1, wherein: the reinforced material is a high elastic modulus material.
7. A gasket according to claim 1, wherein: one side of the sealing gasket body, which is attached to the bottom surface of the waterproof groove, is provided with a groove with an opening facing the shield segment.
8. The waterproof gasket for tube sheets according to claim 7, wherein: this internal a plurality of through-holes that are equipped with of sealed pad, the through-hole is followed the length direction of sealed pad body arranges, just the through-hole is located reinforced material with between the recess.
9. The waterproof gasket for tube sheets according to claim 8, wherein: the through holes comprise a plurality of first holes and a plurality of second holes, and the second holes are arranged above the space between every two adjacent first holes.
10. The utility model provides a shield constructs section of jurisdiction waterproof construction which characterized in that: the shield comprises two shield segments, and waterproof grooves of the two shield segments are arranged oppositely; sealing gaskets are arranged in the waterproof grooves, and at least one sealing gasket is the segment waterproof sealing gasket according to any one of claims 1 to 9; and the extrusion end of the sealing gasket body on the shield segment provided with the segment waterproof sealing gasket and the extrusion end of the sealing gasket on the other shield segment are mutually extruded and sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921221185.3U CN211287701U (en) | 2019-07-31 | 2019-07-31 | Segment waterproof sealing gasket and shield segment waterproof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921221185.3U CN211287701U (en) | 2019-07-31 | 2019-07-31 | Segment waterproof sealing gasket and shield segment waterproof structure |
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| Publication Number | Publication Date |
|---|---|
| CN211287701U true CN211287701U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921221185.3U Active CN211287701U (en) | 2019-07-31 | 2019-07-31 | Segment waterproof sealing gasket and shield segment waterproof structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318778A (en) * | 2019-07-31 | 2019-10-11 | 中铁第四勘察设计院集团有限公司 | A kind of section of jurisdiction waterproof sealing gasket and shield duct piece waterproof construction reducing friction texturizing |
-
2019
- 2019-07-31 CN CN201921221185.3U patent/CN211287701U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318778A (en) * | 2019-07-31 | 2019-10-11 | 中铁第四勘察设计院集团有限公司 | A kind of section of jurisdiction waterproof sealing gasket and shield duct piece waterproof construction reducing friction texturizing |
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