CN113482660A - Tunnel synthesis segment structure for vacuum magnetic levitation - Google Patents
Tunnel synthesis segment structure for vacuum magnetic levitation Download PDFInfo
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- CN113482660A CN113482660A CN202110960396.4A CN202110960396A CN113482660A CN 113482660 A CN113482660 A CN 113482660A CN 202110960396 A CN202110960396 A CN 202110960396A CN 113482660 A CN113482660 A CN 113482660A
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- 238000005339 levitation Methods 0.000 title claims abstract description 17
- 230000015572 biosynthetic process Effects 0.000 title description 7
- 238000003786 synthesis reaction Methods 0.000 title description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 82
- 239000010959 steel Substances 0.000 claims abstract description 82
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 10
- 239000002356 single layer Substances 0.000 abstract description 3
- 230000004224 protection Effects 0.000 description 8
- 239000004567 concrete Substances 0.000 description 6
- 239000000725 suspension Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000007569 slipcasting Methods 0.000 description 4
- 241000357293 Leptobrama muelleri Species 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a tunnel synthetic segment structure for vacuum magnetic levitation, which comprises segment steel shells which are spliced and combined, wherein the segment steel shells are annularly connected by adopting a pin type quick joint, the segment steel shells are longitudinally connected by adopting a sliding quick connector, the periphery of the outer cambered surface of the segment steel shell is welded with a flange plate, a plurality of axial longitudinal ribs are distributed and welded in the pipe piece steel shell, circumferential reinforcing steel bars are distributed on the outer cambered surface of the pipe piece steel shell, the circumferential reinforcing steel bars penetrate through the axial longitudinal ribs and are close to the edges of the outer cambered surface, the middle part in the segment steel shell is welded with a grouting pipe which is used for grouting after the wall is finished, the circular seams of the outer arc and the inner arc between the segment steel shells are matched by adopting arc-shaped mortises, and the longitudinal joints of the outer arcs and the inner arcs between the segment steel shells are installed in a tenon-tenon matched mode, so that the shield split mounting type single-layer segment structure is realized, the construction efficiency is effectively improved, and the shield split mounting type single-layer segment structure has strong sealing performance.
Description
Technical Field
The invention relates to the technical field of tunnel construction equipment, in particular to a tunnel synthesis duct piece structure for vacuum magnetic levitation.
Background
Due to the limitations of air resistance, wheel-rail friction and the like, the wheel-rail type traffic is difficult to economically realize great improvement of the operation speed under the existing technical level. The vacuum running environment is constructed by utilizing the magnetic suspension technology, so that air resistance and noise can be reduced, and the requirement of higher economic running speed is met, namely the vacuum pipeline magnetic suspension transportation technology, the pipeline structure is used as a bearing main body of vacuum magnetic suspension transportation, the maintenance of the mechanical property and the fidelity of the pipeline structure is important, and the vacuum pipeline magnetic suspension transportation technology is also one of key technologies for constructing the safe vacuum pipeline environment and developing high-speed traffic.
The tunnel structure is not influenced by weather, and scarce ground land resources can be saved, so that the construction of the pipeline structure underground has higher feasibility. Traditional shield tunnel generally adopts pin-connected panel reinforced concrete section of jurisdiction structure, connect into whole through bolted connection between the section of jurisdiction, except that section of jurisdiction concrete itself easily appears the microcrack, the local quality problems such as reducing of colliding with, the atress at joint position also is the weak link with sealed, appear the section of jurisdiction in the tunnel and assemble the wrong platform, seam percolating water also is the phenomenon often, because the requirement of vacuum magnetic levitation transportation to pipeline environment is high, current tunnel structure can't satisfy bear with sealed reliability requirement.
Therefore, it is very important to develop a duct piece structure suitable for the use environment of the vacuum magnetic suspension tunnel.
Disclosure of Invention
The invention aims to provide a tunnel synthesis segment structure for vacuum magnetic levitation, which adopts a steel and concrete synthesis structure to improve the segment strength and the sealing performance of a joint, realizes a shield split mounting type single-layer segment structure, effectively improves the construction efficiency and can reduce the construction economic cost.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a tunnel synthetic duct piece structure for vacuum magnetic levitation comprises duct piece steel shells which are spliced and combined, wherein the annular directions of the duct piece steel shells are connected by adopting a pin type quick connector, the duct piece steel shells are longitudinally connected by adopting a sliding quick connector, flange plates are welded on the peripheries of the outer cambered surfaces of the duct piece steel shells, a plurality of axial longitudinal ribs are distributed and welded in the duct piece steel shells, annular reinforcing steel bars are distributed on the outer cambered surfaces of the duct piece steel shells, the annular reinforcing steel bars penetrate through the axial longitudinal ribs and are close to the edges of the outer cambered surfaces, grouting pipes are welded in the middle positions in the duct piece steel shells and are used for wall postgrouting;
the circular seams of the outer arcs and the inner arcs between the segment steel shells are matched by arc-shaped mortises, and the longitudinal seams of the outer arcs and the inner arcs between the segment steel shells are installed in a tenon-tenon matching manner.
Compared with the common concrete segment, the composite segment has high strength, small thickness and good sealing performance, the long-term durability of the tunnel is obviously improved, the secondary lining of the composite segment can be omitted, the construction cost is reduced, and the construction time is shortened.
Furthermore, the bolt type quick connector comprises a male end and a female end which are respectively arranged on the side wall between the two spliced pipe piece steel shell rings, the female end comprises two guide posts which are symmetrically arranged on the side wall between the pipe piece steel shell rings, fixed blocks are respectively arranged at the upper end and the lower end of each guide post, an upper guide groove and a lower guide groove are respectively arranged on each guide post, a cone mouth fixture block is slidably arranged between the corresponding two upper guide grooves and the corresponding lower guide groove, and compression springs are respectively connected between the cone mouth fixture block and the upper top of the upper guide groove and between the cone mouth fixture block and the lower bottom of the lower guide groove;
the male end is a double-faced barb, when the segment steel shell rings are longitudinally spliced, the conical opening clamping blocks reset under the action of the compression spring, and the double-faced barb is clamped between the two corresponding conical opening clamping blocks.
Further, slip quick-operation joint is including setting up heterotypic groove and the protruding piece of T type on the longitudinal side wall of two section of jurisdiction steel casings of hoop concatenation respectively, heterotypic groove is including seting up T type recess and the square groove that installation T type recess bottom and rather than being linked together on the section of jurisdiction interblock lateral wall, and when section of jurisdiction steel casing hoop concatenation, the protruding piece of T type radially docks T type recess and slides in the square groove, and the axial slides in the slide of square groove again.
Above concatenation mode for the section of jurisdiction steel-shelled assembly need not the bolt tightening operation, avoids the local problem that weakens of handhole department, has reduced the seepage passageway of section of jurisdiction, makes to assemble laborsaving, automatic, is showing and improves the tunnel and assembles the quality, and when the concatenation of axial section of jurisdiction steel-shelled, only need the axial to bulldoze and can accomplish the section of jurisdiction and encircle closedly, need not the operation of retightening, the withdrawal resistance appears immediately after the section of jurisdiction ring fastening, can prevent the lax phenomenon that appears after assembling.
Further, the outer arc and the inner arc of the longitudinal seam side wall of the duct piece steel shell are respectively provided with a tenon I, the section of the tenon I is a wedge surface close to the inner and outer arc sides of the duct piece, one side of the longitudinal seam side wall close to the middle position of the duct piece section is a trapezoid right-angle side, the longitudinal seam of the other duct piece steel shell spliced annularly is provided with a groove I, the inner and outer sections of the groove I are right-angle trapezoids, and when the duct piece steel shells are spliced with each other, the tenon I is matched and installed in the corresponding groove I.
Further, outer arc and inner arc on the section of jurisdiction steel-shelled circular seam lateral wall respectively have a section to be isosceles trapezoid's tenon two, and the circular seam of another section of jurisdiction steel-shelled rather than vertical concatenation is equipped with two inside and outside sections to be right trapezoid's recess two, recess two be close to extrados one side for with isosceles trapezoid's outside inclined plane assorted wedge limit, when vertical concatenation between the section of jurisdiction steel-shelled, the cooperation of tenon two is installed in corresponding recess two.
The concave-convex mortise embedded design of the joints around the steel shell of the synthetic duct piece can enhance the shearing resistance and the sealing performance between the duct piece blocks and between the rings, the assembling precision is improved, and the design of the wedge-shaped edge of the section of the concave-convex mortise facilitates the seamless splicing of the adjacent duct pieces.
Furthermore, a first wedge-shaped groove is formed in the wedge-shaped surface of the first groove, a first side corner groove is formed in the side corner of the outer side of the tenon, first sealing strips are continuously embedded into the first inner wedge-shaped groove and the first side corner groove respectively, and the first sealing strips are glued into a ring at the corner of the groove by adopting glue, so that the first sealing strips are inlaid in the first corresponding wedge-shaped groove and the first side corner groove in a whole ring mode.
And furthermore, a second wedge-shaped groove is formed in the wedge-shaped surface of the second groove, a second side corner groove is formed in the side corner part outside the two tenons, a second sealing strip is continuously embedded into the second inner and outer groups of second wedge-shaped grooves and the second side corner groove, and the second sealing strip is glued into a ring at the corner of the groove by adopting glue, so that the second sealing strip is completely inlaid in the corresponding second wedge-shaped groove and the second side corner groove.
The back longitudinal joint and the circumferential weld department all have four sealed protections after the section of jurisdiction steel-back is assembled, the twice is sealed for tenon side wedge face bight, the twice is sealed for recess side wedge face, can reach reliable multiple seal effect, two rectangle sealing strips all imbed in the seal groove about the monolithic section of jurisdiction steel-back, construction and installation are facilitated, can avoid sealed the pad to be disturbed the dislocation in the section of jurisdiction assembling process, guarantee sealed no dead angle, when improving section of jurisdiction global rigidity and bearing capacity, can strengthen the wholeness of section of jurisdiction steel-back and concrete.
Furthermore, the end of the inner arc surface of the grouting pipe is provided with a thread, and when the grouting of the grouting pipe is finished, a plug is arranged at the pipe orifice of the grouting pipe.
Be convenient for the erector in the section of jurisdiction work progress snatch and slip casting behind the wall.
Furthermore, an anti-corrosion coating is coated on the leaking part of the segment steel shell after grouting.
Effective corrosion prevention, and the durability and the service life of the tunnel are improved.
Four sealing protections are arranged at longitudinal seams and circular seams, the corners of the wedge-shaped surfaces of the tenon sides are sealed, the corners of the wedge-shaped surfaces of the groove sides are sealed, reliable multiple sealing effects can be achieved, the upper rectangular sealing strip and the lower rectangular sealing strip of a single segment steel shell are embedded into the sealing grooves, construction and installation are facilitated, the sealing gaskets are prevented from being disturbed and dislocated in the segment assembling process, no dead angle in sealing is ensured, the integral rigidity and the bearing capacity of the segment are improved, and the integrity of the segment steel shell and concrete can be enhanced;
the screw thread is arranged at the end of the inner cambered surface of the grouting pipe, and when the grouting of the grouting pipe is finished, the pipe orifice of the grouting pipe is provided with the plug which can be used for plugging to prevent slurry leakage;
all coat anticorrosive coating through the section of jurisdiction steel casing that finishes at the slip casting hourglass part, this setting can be effectively anticorrosive, improves the durability and the life in tunnel.
Drawings
FIG. 1 is a structural view of a synthesis segment according to an embodiment of the present invention;
FIG. 2 is a side view A of a composite segment according to an embodiment of the present invention;
FIG. 3 is a side view B of a composite segment according to an embodiment of the present invention;
FIG. 4 is a view of a female plug at a circumferential seam of a segment according to an embodiment of the present invention;
FIG. 5 is a side view of a segment longitudinal seam combination according to an embodiment of the present invention;
fig. 6 is a side view of a segment circumferential groove of an embodiment of the present invention.
Wherein: 1. a segment steel shell; 2. a flange plate; 3. longitudinal ribs; 4. circumferential reinforcing steel bars; 5. A grouting pipe; 6. a guide post; 7. a fixed block; 8. an upper guide groove; 9. a lower guide groove; 10. a tapered clamping block; 11. compression spring, 12, double-faced barb; 13. a special-shaped groove; 14. a T-shaped convex part; 15. a second side corner groove; 16. a second sealing strip; 17. a tenon I; 18. a first groove; 19. a tenon II; 20. a second groove; 21. a first wedge-shaped surface groove; 22. a first side corner groove; 23. a first sealing strip; 24. and a second wedge-shaped groove.
Detailed Description
The invention is further described with reference to the following figures and examples:
example (b): referring to fig. 1 to 6, a tunnel synthesis segment structure for vacuum magnetic levitation, segment steel casing 1 including the concatenation combination, segment steel casing 1 hoop adopts bolt formula quick-operation joint to connect, and segment steel casing 1 vertically adopts slip quick-operation joint to connect, it has flange board 2 to weld at the peripheral welding of segment steel casing 1 extrados, its inside is laid and is welded a plurality of axial and is indulged rib 3, hoop reinforcing bar 4 has been laid at the extrados of segment steel casing 1, hoop reinforcing bar 4 passes the edge that axial is close to the extrados that the rib 3 is indulged to the rib, the middle part welding in segment steel casing 1 has slip casting pipe 5, slip casting pipe 5 is used for grouting behind the wall, the outer arc between segment steel casing 1 all adopts the cooperation of arc tongue-and groove with the circumferential weld of inner arc, and the longitudinal weld of outer arc between segment steel casing 1 are installed for the tongue-and groove cooperation.
Bolt formula quick-operation joint is including installing public end and female end on the lateral wall between two section of jurisdiction steel-shelled ring 1 rings of concatenation respectively, female end is including installing guide post 6 that two symmetries set up on the lateral wall between section of jurisdiction steel-shelled ring 1 rings, fixed block 7 is all installed at the upper and lower both ends of guide post 6, upper guideway 8 and lower guide slot 9 have all been seted up on guide post 6, equal slidable mounting has awl mouth fixture block 10 between two upper guideway 8 and lower guide slot 9 that correspond, all be connected with compression spring 11 between the last top of awl mouth fixture block 10 and upper guideway 8 and the lower bottom of lower guide slot 9, public end is two-sided barb 12, as shown in fig. 5, vertical concatenation between section of jurisdiction steel-shelled ring 1, awl mouth fixture block 10 resets under compression spring 11's effort, two-sided barb 12 chucking is between two awl mouth fixture blocks 10 that correspond.
The quick-operation joint that slides is including setting up heterotypic groove 13 and the protruding piece 14 of T type on the longitudinal side wall of two section of jurisdiction steel casings 1 that the hoop is spliced respectively, heterotypic groove 13 is including seting up the T type recess on the section of jurisdiction interblock lateral wall and seting up the square groove that is linked together in T type recess bottom, when section of jurisdiction steel casing 1 hoop is spliced, T type protruding piece 14 is radial to dock in T type recess slips into square groove, the axial slides in square groove's slide again, and heterotypic groove 13 sets up to a pair with T type protruding piece 14 in the longitudinal joint department of every section of jurisdiction steel casing 1 is crisscross.
The outer arc and the inner arc of the longitudinal joint side wall of the segment steel shell 1 respectively have a tenon 17 with a section being in a right trapezoid shape, the side of the outer arc surface of the tenon 17, which is close to the segment steel shell, is a wedge surface, one side of the middle position of the segment steel shell, which is close to the middle position of the segment steel shell, is a trapezoid right-angle side, the longitudinal joint of the other segment steel shell 1 which is spliced annularly is provided with a groove 18, the inner section and the outer section of which are in the right trapezoid shape, and when the segment steel shells 1 are spliced with each other, the tenon 17 is matched and installed in the corresponding groove 18.
The outer arc and the inner arc on the circular seam side wall of the segment steel shell 1 are respectively provided with a tenon two 19 with an isosceles trapezoid cross section, the circular seam of the other segment steel shell 1 longitudinally spliced with the segment steel shell is provided with an inner groove two 20 and an outer groove two 20 with right trapezoid cross sections, one side of the groove two 20 close to the outer arc surface is a wedge-shaped edge matched with the outer inclined plane of the isosceles trapezoid, and when the segment steel shell 1 is longitudinally spliced, the tenon two 19 are matched and installed in the corresponding groove two 20.
A wedge-shaped surface groove I21 is formed in the wedge-shaped surface of the groove I18, a side corner part groove I22 is formed in the side corner part on the outer side of the tenon I17, sealing strips I23 are continuously embedded in the inner and outer groups of wedge-shaped surface grooves I21 and the side corner part grooves I22 respectively, the sealing strips I23 are adhered to the groove corners by glue to form a ring, and the sealing strips I23 are completely embedded in the corresponding wedge-shaped surface grooves I21 and the side corner part grooves I22. The wedge-shaped surface of the second groove 20 is provided with a second wedge-shaped surface groove 24, the side corner part outside the second tenon 19 is provided with a second side corner groove 15, two groups of second wedge-shaped surface grooves 24 and two groups of second side corner grooves 15 are embedded with a second sealing strip 16 continuously, the second sealing strip 16 is adhered to a ring at the corner of the groove by adopting glue, the second sealing strip 16 is completely embedded into the corresponding second wedge-shaped surface grooves 24 and the second side corner grooves 15, after the steel pipe sheet is processed, the whole sealing strip is continuously embedded into the grooves around the pipe sheet, and then the whole ring is adhered to the butt joint of the corner sealing strips. The whole circle of sealing strip in section of jurisdiction steel casing 1 edge is embedded into the seal groove, can guarantee sealed no dead angle, all has four sealed protections in the sealed position of longitudinal joint and circumferential weld simultaneously, and the twice is sealed for tenon side wedge face bight, and the twice is sealed for recess side wedge face, can reach better sealed effect.
The rear longitudinal joint and the circumferential joint of the segment steel shell 1 are assembled to form four sealing protections, the two sealing protections are formed by sealing corners of a tenon side wedge-shaped surface, the two sealing protections are formed by sealing corners of a groove side wedge-shaped surface, a reliable multiple sealing effect can be achieved, two rectangular sealing strips are embedded into a sealing groove from top to bottom of the single segment steel shell 1, construction and installation are facilitated, the phenomenon that a sealing pad is disturbed and misplaced in the segment assembling process can be avoided, no dead angle is guaranteed, the integral rigidity and the bearing capacity of the segment are improved, and the integrity of the segment steel shell 1 and concrete can be enhanced.
The screw thread is arranged at the end of the inner arc surface of the grouting pipe 5, and when the grouting of the grouting pipe 5 is finished, the pipe orifice of the grouting pipe 5 is provided with a plug which can be used for plugging to prevent slurry leakage.
The anti-corrosion coating is coated on the outer leakage part of the segment steel shell 1 after grouting, so that the arrangement can effectively prevent corrosion, improve the durability of the tunnel and prolong the service life of the tunnel.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (9)
1. A tunnel synthetic duct piece structure for vacuum magnetic levitation is characterized by comprising duct piece steel shells which are spliced and combined, wherein the duct piece steel shells are connected in the circumferential direction by adopting a pin type quick connector, the duct piece steel shells are connected in the longitudinal direction by adopting a sliding quick connector, flange plates are welded on the peripheries of the outer cambered surfaces of the duct piece steel shells, a plurality of axial longitudinal ribs are distributed and welded in the duct piece steel shells, circumferential reinforcing steel bars are distributed on the outer cambered surfaces of the duct piece steel shells, the circumferential reinforcing steel bars penetrate through the axial longitudinal ribs and are close to the edges of the outer cambered surfaces, grouting pipes are welded in the middle parts in the duct piece steel shells, and the grouting pipes are used for grouting behind the wall;
the circular seams of the outer arcs and the inner arcs between the segment steel shells are matched by arc-shaped mortises, and the longitudinal seams of the outer arcs and the inner arcs between the segment steel shells are installed in a tenon-tenon matching manner.
2. The tunnel synthetic duct piece structure for vacuum magnetic levitation as claimed in claim 1, wherein the pin type quick connector comprises a male end and a female end respectively mounted on the side wall between two duct piece steel shell rings spliced with each other, the female end comprises two symmetrically arranged guide posts mounted on the side wall between the duct piece steel shell rings, fixed blocks are mounted on the upper and lower ends of the guide posts, an upper guide groove and a lower guide groove are formed on the guide posts, a cone mouth fixture block is slidably mounted between the corresponding two upper guide grooves and the lower guide groove, and compression springs are connected between the cone mouth fixture block and the upper top of the upper guide groove and the lower bottom of the lower guide groove;
the male end is a double-faced barb, when the segment steel shell rings are longitudinally spliced, the conical opening clamping blocks reset under the action of the compression spring, and the double-faced barb is clamped between the two corresponding conical opening clamping blocks.
3. The tunnel synthetic segment structure for vacuum magnetic levitation according to claim 1, wherein the sliding quick coupling comprises a special-shaped groove and a T-shaped protrusion respectively disposed on the longitudinal side walls of two segment steel shells which are annularly spliced, the special-shaped groove comprises a T-shaped groove disposed on the side wall between the segment blocks and a square groove for installing the bottom of the T-shaped groove to communicate with the T-shaped groove, when the segment steel shells are annularly spliced, the T-shaped protrusion radially abuts against the T-shaped groove and slides into the square groove, and then axially slides into the slide way of the square groove.
4. The tunnel synthetic segment structure for vacuum magnetic levitation as claimed in claim 3, wherein the outer arc and the inner arc of the longitudinal seam side wall of the segment steel shell each have a tenon one with a right trapezoid cross section, the side of the tenon one cross section near the inner and outer arc sides of the segment is a wedge surface, the side near the middle position of the segment cross section is a trapezoid right-angle side, the longitudinal seam of another segment steel shell spliced with the segment steel shell in the circumferential direction has a groove one with a right trapezoid cross section, and the tenon one is fitted in the corresponding groove one when the segment steel shells are spliced with each other.
5. A tunnel synthetic segment structure for vacuum magnetic levitation as recited in claim 4, wherein the outer arc and the inner arc on the segment steel shell circular seam side wall each have a second tenon with an isosceles trapezoid cross section, the circular seam of another segment steel shell longitudinally spliced therewith is provided with a second groove with a right trapezoid cross section, the side of the second groove near the outer arc surface is a wedge-shaped edge matching with the outer slope of the isosceles trapezoid, and the second tenon is fittingly installed in the corresponding second groove when the segment steel shells are longitudinally spliced.
6. The tunnel synthetic segment structure for vacuum magnetic levitation as claimed in claim 4, wherein a first wedge-shaped groove is formed on the wedge-shaped surface of the first groove, a first side corner groove is formed on the side corner portion of the outer side of the first tenon, first sealing strips are continuously embedded in the first inner and outer sets of first wedge-shaped grooves and the first side corner grooves respectively, and the first sealing strips are adhered to the groove corners by glue to form a ring, so that the whole ring of the first sealing strips is embedded in the corresponding first wedge-shaped groove and the corresponding first side corner groove.
7. The tunnel synthetic segment structure for vacuum magnetic levitation as claimed in claim 5, wherein a second wedge-shaped groove is formed on the wedge-shaped surface of the second groove, a second side corner groove is formed on the side corner portion of the outer side of the second tenon, second sealing strips are continuously embedded in the inner and outer sets of second wedge-shaped grooves and the second side corner grooves, and the second sealing strips are adhered to form a ring at the corner of the groove by glue, so that the second sealing strips are completely embedded in the corresponding second wedge-shaped grooves and the second side corner grooves.
8. The tunnel synthetic duct piece structure for vacuum magnetic levitation as claimed in claim 1, wherein the thread is provided on the inner arc end of the grouting pipe, and when grouting of the grouting pipe is completed, a plug is installed at the mouth of the grouting pipe.
9. A tunnel synthetic segment structure for vacuum magnetic levitation as recited in claim 1, wherein the segment steel shell leakage part after grouting is coated with an anti-corrosive coating.
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| CN202110960396.4A CN113482660A (en) | 2021-08-20 | 2021-08-20 | Tunnel synthesis segment structure for vacuum magnetic levitation |
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| CN202110960396.4A CN113482660A (en) | 2021-08-20 | 2021-08-20 | Tunnel synthesis segment structure for vacuum magnetic levitation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086985A (en) * | 2021-11-19 | 2022-02-25 | 浙江数智交院科技股份有限公司 | Assembly type tunnel structure and construction method thereof |
| CN114737993A (en) * | 2022-04-21 | 2022-07-12 | 南宁中铁广发轨道装备有限公司 | Recyclable steel concrete combined duct piece for quickly drilling connection channel and assembling method |
| CN115387370A (en) * | 2022-08-26 | 2022-11-25 | 上海隧道工程有限公司 | Sleeve hoop type prefabricated open caisson pipe ring structure and construction method thereof |
| CN115559749A (en) * | 2022-12-08 | 2023-01-03 | 湖南大学 | Segment structure for updating shield tunnel lining segment and construction method thereof |
| CN117145516A (en) * | 2023-11-01 | 2023-12-01 | 中铁十四局集团有限公司 | Quick splicing joint for circumferential seams of shield segments and splicing method |
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| CN210798987U (en) * | 2019-09-12 | 2020-06-19 | 上海建工常州建亚建筑构件制品有限公司 | Prefabricated reinforced concrete segment |
| CN211287702U (en) * | 2019-09-26 | 2020-08-18 | 江苏大成轨道科技有限公司 | Annular push-insert type connecting and fastening assembly for shield tunnel segment |
| CN111663952A (en) * | 2020-06-27 | 2020-09-15 | 同济大学 | Tunnel corrugated steel preliminary bracing assembly quick-operation joint |
| CN111794768A (en) * | 2020-03-31 | 2020-10-20 | 中铁十六局集团北京轨道交通工程建设有限公司 | Shield segment joint combining push fastening and bent bolt and using method thereof |
| CN212227282U (en) * | 2020-06-08 | 2020-12-25 | 深圳市德尼环境技术有限公司 | Energy-saving air purification system |
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| CN114086985A (en) * | 2021-11-19 | 2022-02-25 | 浙江数智交院科技股份有限公司 | Assembly type tunnel structure and construction method thereof |
| CN114737993A (en) * | 2022-04-21 | 2022-07-12 | 南宁中铁广发轨道装备有限公司 | Recyclable steel concrete combined duct piece for quickly drilling connection channel and assembling method |
| CN115387370A (en) * | 2022-08-26 | 2022-11-25 | 上海隧道工程有限公司 | Sleeve hoop type prefabricated open caisson pipe ring structure and construction method thereof |
| CN115559749A (en) * | 2022-12-08 | 2023-01-03 | 湖南大学 | Segment structure for updating shield tunnel lining segment and construction method thereof |
| CN117145516A (en) * | 2023-11-01 | 2023-12-01 | 中铁十四局集团有限公司 | Quick splicing joint for circumferential seams of shield segments and splicing method |
| CN117145516B (en) * | 2023-11-01 | 2024-01-09 | 中铁十四局集团有限公司 | Quick splicing joint for circumferential seams of shield segments and splicing method |
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Application publication date: 20211008 |