CN212803233U - Shield constructs quick-witted steel sleeve seal structure - Google Patents
Shield constructs quick-witted steel sleeve seal structure Download PDFInfo
- Publication number
- CN212803233U CN212803233U CN202021627103.8U CN202021627103U CN212803233U CN 212803233 U CN212803233 U CN 212803233U CN 202021627103 U CN202021627103 U CN 202021627103U CN 212803233 U CN212803233 U CN 212803233U
- Authority
- CN
- China
- Prior art keywords
- steel sleeve
- section
- sleeve section
- half part
- seal structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a shield constructs quick-witted steel sleeve seal structure, including steel sleeve section A, steel sleeve section B, steel sleeve section C, the end of steel sleeve section A, steel sleeve section B, steel sleeve section C is equipped with circular flange, be equipped with a plurality of bolt holes on the flange, pass the bolt on the bolt hole, realize the fixed connection of each section, be equipped with the sealing washer between the end of steel sleeve section A, steel sleeve section B, steel sleeve section C, steel sleeve section A, steel sleeve section B, steel sleeve section C all constitute with the latter half, upper half and latter half pass through bolted connection, be equipped with the rubber seal strip between upper half and the latter half, establish a transition connection crown plate between steel sleeve section C and the portal crown plate, the flange and the transition connection crown plate of steel sleeve section C adopt bolted connection, the flange and the transition connection crown plate junction of steel sleeve section C are equipped with the sealing strip, the outside of sealing strip is equipped with the gasbag, solves the poor problem of leakproofness.
Description
Technical Field
The utility model belongs to the technical field of the construction of shield structure machine steel sleeve, concretely relates to shield structure machine steel sleeve seal structure.
Background
The shield machine is a special engineering machine for tunneling, integrates light, mechanical, electrical, hydraulic, sensing and information technologies into a whole, has the functions of excavating and cutting soil bodies, conveying soil residues, assembling tunnel linings, measuring, guiding, correcting deviation and the like, has extremely high reliability requirements, and is widely applied to tunnel engineering of subways, railways, highways, municipal administration, hydropower and the like.
The shield machine is usually constructed by adopting a closed starting construction method for starting and receiving, before the shield is tunneled, a steel sleeve is arranged in a shield starting well, the shield machine is arranged in the steel sleeve, then backfill materials are filled in the steel sleeve, and water for balancing the tunnel face is provided through the closed space of the steel sleeve. At present, a steel sleeve is generally formed by assembling a plurality of sections of cylinders, and each section of cylinder is also formed by assembling an upper semicircular ring and a lower semicircular ring. In order to improve the sealing performance of the steel sleeve, a constructor usually plugs a sealing ring between the connecting flanges of adjacent cylinders, but the sealing structure is poor in stability for increasing the construction difficulty during assembly, so that the tunnel face is collapsed due to the fact that the earth cabin cannot maintain required pressure.
Disclosure of Invention
The utility model provides a shield constructs quick-witted steel sleeve seal structure improves sealing performance, effectively solves the poor problem of seal structure stability.
The technical scheme of the utility model is that: a sealing structure of a steel sleeve of a shield tunneling machine comprises a steel sleeve A section, a steel sleeve B section and a steel sleeve C section, wherein circular flanges are arranged at the ends of the steel sleeve A section, the steel sleeve B section and the steel sleeve C section, a plurality of bolt holes are formed in the flanges, bolts penetrate through the bolt holes, the sections are fixedly connected through the bolts, sealing rings are arranged between the ends of the steel sleeve A section, the steel sleeve B section and the steel sleeve C section, the steel sleeve A section, the steel sleeve B section and the steel sleeve C section are respectively composed of an upper half part and a lower half part, the upper half part and the lower half part are connected through the bolts, rubber sealing strips are arranged between the upper half part and the lower half part, a transition connection annular plate is arranged between the steel sleeve C section and a portal annular plate, the end flange of the steel sleeve C section is connected with the transition connection annular plate through the bolts, and a sealing strip is arranged at the joint of the end flange of the steel sleeve C section and the transition, an air bag is arranged outside the sealing strip.
In the scheme, polyurethane is coated on the inner sides of the joints of the section A of the steel sleeve, the section B of the steel sleeve and the section C of the steel sleeve.
In the scheme, grooves are formed in the end heads of the section A of the steel sleeve, the section B of the steel sleeve and the section C of the steel sleeve, and the cross sections of the grooves are arc-shaped and irregular.
The scheme is further that two sides of the radial cross section of the sealing ring are arc-shaped edges, the arc-shaped edges are matched with the groove structure, a plurality of tooth-shaped protrusions are arranged on the upper portion of the radial cross section of the sealing ring, and two adjacent sealing ring protrusions are meshed and locked with each other.
And further, polyurethane is coated on the outer side of the joint of the end flange of the section C of the steel sleeve and the transition connecting ring plate.
Further, the inclination angle of the protrusions is 30-45 degrees, and the tooth pitch between adjacent saw teeth is 5-10 mm.
The utility model has the advantages that: the utility model provides the high sealing performance of steel sleeve effectively solves the poor problem of seal structure stability, and the problem of effective prevention shield structure machine seepage improves the construction security.
Drawings
Fig. 1 is a schematic structural diagram of a shield machine steel sleeve sealing structure of the present invention;
fig. 2 is a schematic view of a radial cross-section structure of a seal ring of a shield machine steel sleeve seal structure of the present invention;
fig. 3 is a schematic side structure view of the shield machine steel sleeve sealing structure of the present invention;
fig. 4 is a partial enlarged view of a part a in fig. 1 of the sealing structure of the steel sleeve of the shield tunneling machine of the present invention;
wherein: 1. the steel sleeve comprises a steel sleeve section A, a steel sleeve section B, a steel sleeve section C, a steel sleeve section A, a steel sleeve section B.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which a person skilled in the art can, without any creative effort, fully implement the present invention.
The utility model discloses a concrete implementation mode is: as shown in figures 1-4, the sealing structure of the steel sleeve of the shield tunneling machine comprises a steel sleeve A section 1, a steel sleeve B section 2 and a steel sleeve C section 3, wherein the ends of the steel sleeve A section 1, the steel sleeve B section 2 and the steel sleeve C section 3 are provided with circular flanges, the flanges are provided with a plurality of bolt holes 8, bolts penetrate through the bolt holes 8, the fixed connection of the sections is realized through the bolts, a sealing ring 5 is arranged between the ends of the steel sleeve A section 1, the steel sleeve B section 2 and the steel sleeve C section 3, the steel sleeve A section 1, the steel sleeve B section 2 and the steel sleeve C section 3 are respectively composed of an upper half part and a lower half part, the upper half part and the lower half part are connected through the bolts, a rubber sealing strip is arranged between the upper half part and the lower half part, a transition connection annular plate 4 is arranged between the steel sleeve C section 3 and a portal annular plate, the end flange of the steel sleeve C section 3 is connected with the transition connection annular plate 4 through the, the sealing strip 6 is arranged at the joint of the end flange of the steel sleeve C section 3 and the transition connecting ring plate 4, the air bag 9 is arranged outside the sealing strip 6, and the sealing performance is further improved by inflating the air bag 9.
The utility model discloses further, polyurethane is paintd to the inboard of steel sleeve A section 1, steel sleeve B section 2, 3 junctions of steel sleeve C section.
The utility model discloses further, all be equipped with recess 7 on the end of steel sleeve A section 1, steel sleeve B section 2, steel sleeve C section 3, the cross-section of recess 7 is the arc irregularity.
The utility model discloses further, the radial cross section both sides of sealing washer 5 are arc limit 52, arc limit 52 and recess 7 structure phase-match, the upper portion of the radial cross section of sealing washer 5 is equipped with a plurality of dentate archs 51, and the protruding 51 intermeshing locking of two adjacent sealing washers 5.
The utility model discloses furtherly, polyurethane is paintd in the end flange of steel sleeve C section 3 and the outside of 4 junctions of transitional coupling crown plate.
The utility model discloses further, protruding 51's inclination is 30 ~ 45, and adjacent sawtooth intertooth tooth space is 5 ~ 10 mm.
While the preferred embodiments of the present invention have been described, it is to be understood that the invention is not limited to the precise embodiments described, and that equipment and structures not described in detail are understood to be practiced as commonly known in the art; any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention will still fall within the protection scope of the technical solution of the present invention by those skilled in the art without departing from the technical solution of the present invention.
Claims (6)
1. A sealing structure of a steel sleeve of a shield tunneling machine is characterized by comprising a steel sleeve A section, a steel sleeve B section and a steel sleeve C section, wherein circular flanges are arranged at the ends of the steel sleeve A section, the steel sleeve B section and the steel sleeve C section, a plurality of bolt holes are formed in the flanges, bolts penetrate through the bolt holes, the sections are fixedly connected through the bolts, sealing rings are arranged between the ends of the steel sleeve A section, the steel sleeve B section and the steel sleeve C section, the steel sleeve A section, the steel sleeve B section and the steel sleeve C section are respectively composed of an upper half part and a lower half part, the upper half part and the lower half part are connected through the bolts, rubber sealing strips are arranged between the upper half part and the lower half part, a transition connection annular plate is arranged between the steel sleeve C section and a portal annular plate, and the end flange of the steel sleeve C section is connected with the transition connection annular plate through the bolts, and a sealing strip is arranged at the joint of the end flange of the section C of the steel sleeve and the transition connecting annular plate, and an air bag is arranged outside the sealing strip.
2. The seal structure of the steel sleeve of the shield tunneling machine according to claim 1, wherein the inner sides of the joints of the section A of the steel sleeve, the section B of the steel sleeve and the section C of the steel sleeve are coated with polyurethane.
3. The seal structure of the steel sleeve of the shield tunneling machine according to claim 2, wherein grooves are formed in the end heads of the section A of the steel sleeve, the section B of the steel sleeve and the section C of the steel sleeve, and the cross sections of the grooves are arc-shaped and irregular.
4. The seal structure of the steel sleeve of the shield tunneling machine according to claim 3, wherein two sides of the radial cross section of the seal ring are arc-shaped edges, the arc-shaped edges are matched with the groove structure, the upper part of the radial cross section of the seal ring is provided with a plurality of tooth-shaped protrusions, and two adjacent seal ring protrusions are meshed and locked with each other.
5. The seal structure of the steel sleeve of the shield tunneling machine according to claim 4, wherein polyurethane is coated on the outer side of the joint of the end flange of the section C of the steel sleeve and the transition connection ring plate.
6. The seal structure of the steel sleeve of the shield tunneling machine according to claim 5, wherein the inclination angle of the protrusions is 30-45 degrees, and the tooth pitch between adjacent saw teeth is 5-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021627103.8U CN212803233U (en) | 2020-08-07 | 2020-08-07 | Shield constructs quick-witted steel sleeve seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021627103.8U CN212803233U (en) | 2020-08-07 | 2020-08-07 | Shield constructs quick-witted steel sleeve seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212803233U true CN212803233U (en) | 2021-03-26 |
Family
ID=75083107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021627103.8U Active CN212803233U (en) | 2020-08-07 | 2020-08-07 | Shield constructs quick-witted steel sleeve seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212803233U (en) |
-
2020
- 2020-08-07 CN CN202021627103.8U patent/CN212803233U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113775356A (en) | Shield constructs underground butt joint section secondary lining structure | |
| CN112746852A (en) | Tunneling equipment and method for tunnel communication channel by means of flexible sleeve initial receiving | |
| US4662773A (en) | Segmental tunnel lining consisting of reinforced concrete tubbings | |
| CN212803233U (en) | Shield constructs quick-witted steel sleeve seal structure | |
| US4594025A (en) | Tunnelling and tunnel relining equipment | |
| JP3728709B2 (en) | Shield segment | |
| CN211900641U (en) | Buckling-restrained assembled tunnel composite structure supporting system | |
| CN218030191U (en) | Transition ring, flexible connection sealing device and shield originating receiving system | |
| CN212509499U (en) | Compound elasticity rubber seal structure | |
| CN210829277U (en) | Steel ring structure for shield launching | |
| CN205474890U (en) | Restoration reinforced structure of corrugated steel pipe culvert culvert pipe | |
| JP6229400B2 (en) | Tunnel connection structure and tunnel connection method | |
| CN210660116U (en) | Shield segment structure | |
| CN211081879U (en) | Prefabricated lining circular seam staggered joint assembling structure for tunneling tunnel by mechanical method | |
| CN218347392U (en) | Novel duct piece for resisting out-of-round deformation of duct piece | |
| CN214532958U (en) | Flexible starting sleeve structure for mechanical method communication channel starting tunnel portal | |
| CN212803256U (en) | Shield lateral split starting and sealing end structure | |
| JP2933278B1 (en) | Underground junction type shield machine | |
| CN217151939U (en) | Quick connecting device for portal steel ring and steel sleeve | |
| CN220979514U (en) | Temporary reinforcing structure of shield tunnel lining structure | |
| CN212563251U (en) | Triple baffling type partition waterproof structure of underground excavation tunnel | |
| CN219622703U (en) | Shield segment assembling structure | |
| CN214273662U (en) | Shield constructs in-connection structure in mine handing-over tunnel | |
| CN219062645U (en) | Novel non-excavation push pipe for water works | |
| CN212225216U (en) | Water-rich stratum earth pressure balance shield starting tunnel portal sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |