CN114458322B - Shield constructs quick-witted steel sleeve base additional strengthening that originates from with prevent stretch-break function - Google Patents
Shield constructs quick-witted steel sleeve base additional strengthening that originates from with prevent stretch-break function Download PDFInfo
- Publication number
- CN114458322B CN114458322B CN202111587679.5A CN202111587679A CN114458322B CN 114458322 B CN114458322 B CN 114458322B CN 202111587679 A CN202111587679 A CN 202111587679A CN 114458322 B CN114458322 B CN 114458322B
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- base
- steel sleeve
- arc
- loosening
- fixedly arranged
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 48
- 239000010959 steel Substances 0.000 title claims abstract description 48
- 238000005728 strengthening Methods 0.000 title claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 14
- 230000002265 prevention Effects 0.000 claims abstract description 6
- 230000005641 tunneling Effects 0.000 claims description 11
- 239000004576 sand Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Clamps And Clips (AREA)
Abstract
The invention relates to the technical field of starting steel sleeves, in particular to a shield machine starting steel sleeve base reinforcing structure with a stretch-breaking prevention function, which comprises a steel sleeve half-arc plate, a base half-arc support, a base matching arc support and an anti-loosening traction structure, wherein the base half-arc support is fixedly arranged at the outer surface position of the steel sleeve half-arc plate, the base matching arc support is positioned under the base half-arc support, base connecting grooves are respectively formed in the surface positions of two sides of the base matching arc support, and connecting matching blocks are respectively and fixedly arranged at two ends of the anti-loosening traction structure; according to the invention, through the anti-loosening traction structure, the base matched arc supports are mutually connected, so that the base matched arc supports are integrated, the stability and the tensile strength of the base matched arc supports are greatly increased, and the side butt eave matching between the adjacent steel sleeve half arc plates can be more compact through the traction force brought by the anti-loosening traction structure, so that the stability of the original steel sleeve is increased.
Description
Technical Field
The invention relates to the technical field of originating steel sleeves, in particular to a reinforcing structure of a shield machine originating steel sleeve base with a stretch-breaking prevention function.
Background
The shield tunneling machine is a tunnel tunneling machine using a shield tunneling method, the basic working principle of the shield tunneling machine is that a cylindrical steel component is used for excavating soil while advancing along the axis of a tunnel, the shell of the cylindrical component, namely a shield, plays a role in temporarily supporting an excavated tunnel section which is not lined yet, bears the pressure of surrounding soil layers, sometimes bears underground water pressure and keeps underground water outside, works such as excavation, soil discharge and lining are carried out under the shield of the shield, when the field condition is poor, the reinforcement strength of the soil body is low and the environment is complex, a steel sleeve is usually adopted for initiating, the steel sleeve is of a circular closed steel structure, the diameter is slightly larger than that of the shield tunneling machine, the length is slightly longer than that of the shield tunneling machine, and the inert backfill materials are filled between the steel sleeve and the shield tunneling machine shell to form a sealed environment, so that the geological condition similar to the initiating end of a foundation pit is simulated, and the initiating construction is kept.
Disclosure of Invention
The invention aims to provide a shield tunneling machine starting steel sleeve base reinforcing structure with a stretch-breaking prevention function, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a shield constructs quick-witted steel sleeve base additional strengthening that originates with function of preventing drawing, includes the semi-arc board of steel sleeve, base semicircle holds in the palm, base cooperation arc holds in the palm and locking traction structure, base semicircle holds in the palm fixed mounting at the outside surface position of the semi-arc board of steel sleeve, base cooperation arc holds in the palm and is located the base semicircle holds in the palm under, base spread groove has been seted up respectively to the both sides surface position that base cooperation arc held in the palm, the equal fixed mounting in both ends of locking traction structure has connection cooperation piece respectively, connection cooperation piece with base spread groove can pass through screw fixed connection, locking traction structure has flexible regulation and locking fixed function.
Preferably, the outer surface position fixed mounting of base semicircle holds in the palm has the lock sand grip, and the sand grip through-hole has been seted up on the surface of lock sand grip, the lock recess has been seted up to the upper surface that the base cooperation arc held in the palm, the recess screw hole has been seted up on the surface that the base cooperation arc held in the palm.
Preferably, the buckling convex strips are positioned inside the buckling grooves, the convex strip through holes correspond to the hole positions of the groove screw holes one by one, a base equalizing plate is fixedly arranged at the lower surface position of the base matching arc support, and a base reinforcing block is fixedly arranged between the upper surface of the base equalizing plate and the two side surfaces of the base matching arc support.
Preferably, the positioning clamping groove is formed in the inner wall surface position of the base connecting groove, the inner wall surface position of the base connecting groove is located at two sides of the positioning clamping groove, the inner thread blind holes are formed in the two sides of the positioning clamping groove respectively, the positioning clamping block is fixedly mounted at the surface position of one side of the connecting matching block, and the clamping block through hole is formed in the surface of the positioning clamping block.
Preferably, the connecting matching blocks are located in the base connecting grooves, and the clamping block through holes are in one-to-one correspondence with the hole sites of the internal thread blind holes.
Preferably, the hexagonal screwing block is fixedly installed at the outer surface position of the anti-loosening traction structure, the cylindrical cavity is formed in the anti-loosening traction structure and the hexagonal screwing block, one end, close to the position where the hexagonal screwing block is located, of the inner wall surface of the cylindrical cavity is provided with a cavity internal thread, a connecting threaded column is installed in the internal spiral fit of the cavity internal thread, a connecting rotary column is installed in the internal rotation of the cylindrical cavity, and a connecting fit block is fixedly installed at one end surface position of the connecting threaded column and one end surface position of the connecting rotary column respectively.
Preferably, the outer surface position of the connection rotary column is provided with a limit ring groove, the number of the limit ring grooves is at least two, the inner wall surface position of the cylindrical cavity is fixedly provided with a limit ring convex edge, the limit ring convex edge is positioned inside the limit ring groove, one end surface position of the anti-loosening traction structure is fixedly provided with a buckling tooth, the outer surface position of the connection rotary column is provided with a locking sleeve sliding groove, the outer part of the connection rotary column is sleeved with an anti-loosening locking sleeve, the inner wall surface position of the anti-loosening locking sleeve is fixedly provided with an inner sliding block, the inner sliding block is positioned inside the locking sleeve sliding groove and slides, the outer surface position of the connection rotary column is fixedly provided with a spring check ring, the outer part of the connection rotary column is positioned between the spring check ring and the anti-loosening locking sleeve in a sleeved mode, one side surface position of the anti-loosening locking sleeve is fixedly provided with a matching locking tooth, and the matching locking tooth is in contact locking and fixing mode.
Preferably, the two side surface positions of the steel sleeve half arc plate are respectively and fixedly provided with a side butt-joint eave, the surface of the side butt-joint eave is provided with a side eave through hole, the upper surface position of the steel sleeve half arc plate is fixedly provided with an upper butt-joint eave, the surface of the upper butt-joint eave is provided with an upper eave through hole, and the outer surface position of the steel sleeve half arc plate is fixedly provided with a surface reinforcing edge.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through the anti-loosening traction structure, the base matched arc supports are mutually connected, so that the base matched arc supports are integrated, the stability and the tensile strength of the base matched arc supports are greatly increased, and the side butt eave matching between the adjacent steel sleeve half arc plates can be more compact through the traction force brought by the anti-loosening traction structure, so that the stability of the original steel sleeve is increased;
the anti-loosening locking sleeve is in contact fit with the buckling teeth, so that the anti-loosening traction structure and the connecting rotary column cannot rotate relatively in the use process of the anti-loosening traction structure, the connection is more stable, and the anti-loosening traction structure cannot be loosened due to external forces such as vibration;
The semi-circular support of the base is matched with the arc support of the base through the arrangement, and the semi-circular support of the base is fixed through screws, so that the semi-circular plate of the steel sleeve and the arc support of the base can be conveniently detached, separated and installed, transportation and well construction are facilitated, and engineering construction efficiency can be improved.
Drawings
FIG. 1 is an exploded view of the overall structure of the present invention;
FIG. 2 is an exploded view of the overall structure of the present invention;
FIG. 3 is an exploded view of the overall structure of the present invention;
FIG. 4 is a cross-sectional view of the anti-loosening traction structure of the present invention;
Fig. 5 is a front view of the anti-loosening traction structure of the present invention.
In the figure: 1. a steel sleeve half-arc plate; 2. a base semicircle support; 3. the base is matched with the arc support; 4. a base connecting groove; 5. an anti-loosening traction structure; 6. connecting the matching blocks; 201. buckling the convex strips; 202. a convex strip through hole; 301. a buckling groove; 302. groove screw holes; 303. a base equalizing plate; 304. a base reinforcing block; 401. positioning clamping grooves; 402. an internal thread blind hole; 601. positioning a clamping block; 602. a fixture block through hole; 501. hexagonal screwing blocks; 502. a cylindrical cavity; 503. internal threads of the cavity; 504. connecting a threaded column; 505. connecting a rotating column; 506. a limit ring groove; 507. a spacing ring bead; 508. buckling teeth; 509. a locking sleeve chute; 510. an anti-loosening locking sleeve; 511. an inner slider; 512. a spring check ring; 513. a locking spring; 514. matching with a locking tooth; 101. a side butt eave; 102. a side eave through hole; 103. the upper part is butted with the eave; 104. an upper eave through hole; 105. surface strengthening ribs.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: the utility model provides a shield constructs quick-witted steel sleeve base additional strengthening with prevent drawing function, including steel sleeve half arc board 1, base semicircle holds in the palm 2, base cooperation arc holds in the palm 3 and locking traction structure 5, base semicircle holds in the palm 2 fixed mounting in the outside surface position of steel sleeve half arc board 1, base semicircle holds in the palm 2 and steel sleeve half arc board 1 can be fixed through welded mode, base cooperation arc holds in the palm 3 and is located base semicircle holds in the palm 2 under, base connecting groove 4 has been seted up respectively to base cooperation arc holds in the both sides surface position of 3, locking traction structure 5's both ends are divided fixed mounting and are had connection cooperation piece 6, connection cooperation piece 6 and base connecting groove 4 can be through screw fixed connection, both structures are as shown in fig. 1, locking traction structure 5 has flexible regulation and locking fixed function.
The outer surface of the base semicircular support 2 is fixedly provided with a buckling convex strip 201, the buckling convex strip 201 and the base semicircular support 2 can be manufactured by integral casting and can also be welded and fixed, the surface of the buckling convex strip 201 is provided with a convex strip through hole 202, the upper surface of the base matched arc support 3 is provided with a buckling groove 301, and the surface of the base matched arc support 3 is provided with a groove screw hole 302; the lock sand grip 201 is located lock recess 301 inside, and sand grip through-hole 202 and the hole site one-to-one of recess screw hole 302, and the lower surface position fixed mounting of base cooperation arc holds in the palm 3 has base equalizing plate 303, and fixed mounting has base reinforcing block 304 between the upper surface of base equalizing plate 303 and the both sides surface of base cooperation arc holds in the palm 3, and the supportability of base equalizing plate 303 can be strengthened to base reinforcing block 304, avoids base equalizing plate 303 to receive the compression deformation.
A positioning clamping groove 401 is formed in the inner wall surface position of the base connecting groove 4, internal thread blind holes 402 are formed in the inner wall surface position of the base connecting groove 4 at two sides of the positioning clamping groove 401 respectively, a positioning clamping block 601 is fixedly mounted at the surface position of one side of the connecting matching block 6, and a clamping block through hole 602 is formed in the surface of the positioning clamping block 601; the connecting matching blocks 6 are positioned in the base connecting grooves 4, and the clamping block through holes 602 correspond to the hole sites of the internal thread blind holes 402 one by one, so that screws can be conveniently fixed in a screwed mode.
The anti-loosening traction structure 5 is characterized in that a hexagonal screwing block 501 is fixedly arranged at the outer surface of the anti-loosening traction structure 5, the hexagonal screwing block 501 and the anti-loosening traction structure 5 are integrally formed, a cylindrical cavity 502 is formed in the anti-loosening traction structure 5 and the hexagonal screwing block 501, a cavity internal thread 503 is formed in one end, close to the position where the hexagonal screwing block 501 is located, of the inner wall surface of the cylindrical cavity 502, a connecting threaded column 504 is arranged in the cavity internal thread 503 in a spiral fit manner, a connecting rotary column 505 is rotatably arranged in the cylindrical cavity 502, and a connecting fit block 6 is fixedly arranged at one end surface position of the connecting threaded column 504 and one end surface position of the connecting rotary column 505 respectively; the outer surface position of the connection rotary column 505 is provided with at least two limit ring grooves 506, the inner wall surface position of the cylindrical cavity 502 is fixedly provided with limit ring ribs 507, the limit ring ribs 507 are positioned inside the limit ring grooves 506, so that the connection rotary column 505 and the anti-loosening traction structure 5 can only rotate relatively and cannot move, one end surface position of the anti-loosening traction structure 5 is fixedly provided with buckling teeth 508, the outer surface position of the connection rotary column 505 is provided with locking sleeve sliding grooves 509, the outer part of the connection rotary column 505 is sleeved with anti-loosening locking sleeves 510, the inner wall surface position of the locking sleeve 510 is fixedly provided with inner sliding blocks 511, the inner sliding blocks 511 are positioned inside the locking sleeve sliding grooves 509 and fixedly provided with spring check rings 512, the outer part of the connection rotary column 505 is sleeved with locking springs 513 between the spring check rings 512 and the anti-loosening locking sleeves 510, one side surface position of the anti-loosening traction structure 5 is fixedly provided with matching locking teeth 514, the matching locking teeth 514 are fixedly contacted with the buckling teeth 508, and the matching locking teeth 514 are fixedly contacted with the locking teeth 508 as shown in the figure 5.
The both sides surface position of the half arc board of steel sleeve 1 all fixed mounting has side to butt against eaves 101, and side to butt against the surface of eaves 101 and offered side eaves through-hole 102, and the upper surface position fixed mounting of the half arc board of steel sleeve 1 has upper portion to butt against eaves 103, and upper eaves through-hole 104 has been offered to the surface of upper portion to butt against eaves 103, and the surface position fixed mounting of the outer surface position of the half arc board of steel sleeve 1 has surface reinforcing rib 105, and the half arc board of steel sleeve 1 is fixed with other steel sleeve cooperation through side to butt against eaves 101 and upper portion to butt against eaves 103, assembles into the tube-shape.
When the steel sleeve half arc plate 1 and the base matching arc support 3 are assembled, firstly, the buckling convex strips 201 fall into the buckling grooves 301, screws sequentially penetrate through the groove screw holes 302 and the convex strip through holes 202 to fix, the steel sleeve half arc plate 1 and the base matching arc support 3 are fixed, after the connecting matching block 6 and the base connecting groove 4 are fixed through the screws, a constructor holds the anti-loosening locking sleeve 510 to pull backwards, so that the matching locking teeth 514 are separated from the buckling teeth 508, at the moment, the other constructor clamps the hexagonal screwing block 501 through an external spanner, rotates the anti-loosening traction structure 5, enables the anti-loosening traction structure 5 to rotate, the connecting threaded column 504 is in spiral fit with the cavity internal threads 503, so that the connecting threaded column 504 moves in the anti-loosening traction structure 5, the anti-loosening traction structure 505 moves towards the connecting threaded column 504, the adjacent base matching arc support 3 is gradually tensioned and fixed, after the tensioning and fixing are completed, the anti-loosening locking sleeve 510 is released, the matching locking teeth 514 and the buckling teeth 508 are enabled to be in elastic action of the locking spring 513, and the anti-loosening traction structure is prevented from being connected with the anti-loosening column 505.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a shield constructs quick-witted steel sleeve base additional strengthening that originates with prevent stretch-break function, includes the semi-arc board of steel sleeve, base semicircle holds in the palm, base cooperation arc holds in the palm and locking traction structure, base semicircle holds in the palm fixed mounting at the outside surface position of the semi-arc board of steel sleeve, base cooperation arc holds in the palm and is located the base semicircle under holding in the palm, its characterized in that: the two sides of the base matched arc support are respectively provided with a base connecting groove, the two ends of the anti-loosening traction structure are respectively and fixedly provided with a connecting matched block, the connecting matched blocks are fixedly connected with the base connecting grooves through screws, and the anti-loosening traction structure has the functions of telescopic adjustment and anti-loosening fixation; the outer surface of the base semicircular support is fixedly provided with a buckling convex strip, the surface of the buckling convex strip is provided with a convex strip through hole, the upper surface of the base matched arc support is provided with a buckling groove, and the surface of the base matched arc support is provided with a groove screw hole; the positioning clamping grooves are formed in the inner wall surface positions of the base connecting grooves, inner thread blind holes are formed in the inner wall surface positions of the base connecting grooves, located on two sides of the positioning clamping grooves respectively, positioning clamping blocks are fixedly mounted on one side surface positions of the connecting matching blocks, and clamping block through holes are formed in the surfaces of the positioning clamping blocks; the anti-loosening traction structure comprises a hexagonal screwing block, a cylindrical cavity is formed in the anti-loosening traction structure and the hexagonal screwing block, a cavity internal thread is formed in one end, close to the position where the hexagonal screwing block is located, of the inner wall surface of the cylindrical cavity, a connecting threaded column is arranged in the cavity internal thread in a screwed fit mode, a connecting rotary column is arranged in the cylindrical cavity in a rotary mode, and a connecting fit block is fixedly arranged at one end surface position of the connecting threaded column and one end surface position of the connecting rotary column respectively; the anti-loosening locking device comprises a connecting rotating column, and is characterized in that a limiting ring groove is formed in the outer surface position of the connecting rotating column, at least two limiting ring grooves are formed in the number of the limiting ring grooves, a limiting ring rib is fixedly arranged on the inner wall surface position of the cylindrical cavity, the limiting ring rib is located inside the limiting ring groove, a buckling tooth is fixedly arranged on one end surface position of the anti-loosening traction structure, a locking sleeve sliding groove is formed in the outer surface position of the connecting rotating column, an anti-loosening locking sleeve is sleeved outside the connecting rotating column, an inner sliding block is fixedly arranged on the inner wall surface position of the anti-loosening locking sleeve, the inner sliding block is located inside the locking sleeve sliding groove and fixedly arranged on the outer surface position of the connecting rotating column, a spring check ring and an anti-loosening locking sleeve are fixedly arranged between the spring check ring and the anti-loosening locking sleeve, and a matching locking tooth is fixedly arranged on one side surface position of the anti-loosening locking sleeve, and the matching locking tooth is in contact locking and fixed with the buckling tooth.
2. The shield tunneling machine originating steel sleeve base reinforcing structure with a stretch-break prevention function according to claim 1, wherein: the buckling convex strips are positioned inside the buckling grooves, the convex strip through holes correspond to the hole positions of the groove screw holes one by one, a base equalizing plate is fixedly arranged at the lower surface position of the base matching arc support, and a base reinforcing block is fixedly arranged between the upper surface of the base equalizing plate and the two side surfaces of the base matching arc support.
3. The shield tunneling machine originating steel sleeve base reinforcing structure with a stretch-break prevention function according to claim 1, wherein: the connecting matching blocks are positioned in the base connecting grooves, and the clamping block through holes correspond to the hole positions of the internal thread blind holes one by one.
4. The shield tunneling machine originating steel sleeve base reinforcing structure with a stretch-break prevention function according to claim 1, wherein: the steel sleeve semi-arc plate comprises a steel sleeve semi-arc plate, wherein side butt-joint eaves are fixedly arranged at the surface positions of two sides of the steel sleeve semi-arc plate respectively, side eave through holes are formed in the surfaces of the side butt-joint eaves, upper butt-joint eaves are fixedly arranged at the upper surface positions of the steel sleeve semi-arc plate, upper eave through holes are formed in the surfaces of the upper butt-joint eaves, and surface reinforcing edges are fixedly arranged at the outer surface positions of the steel sleeve semi-arc plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111587679.5A CN114458322B (en) | 2021-12-23 | 2021-12-23 | Shield constructs quick-witted steel sleeve base additional strengthening that originates from with prevent stretch-break function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111587679.5A CN114458322B (en) | 2021-12-23 | 2021-12-23 | Shield constructs quick-witted steel sleeve base additional strengthening that originates from with prevent stretch-break function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114458322A CN114458322A (en) | 2022-05-10 |
| CN114458322B true CN114458322B (en) | 2024-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111587679.5A Active CN114458322B (en) | 2021-12-23 | 2021-12-23 | Shield constructs quick-witted steel sleeve base additional strengthening that originates from with prevent stretch-break function |
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| Country | Link |
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| CN (1) | CN114458322B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7634841B2 (en) * | 2020-06-03 | 2025-02-25 | 前田建設工業株式会社 | Apparatus and method for assembling lower half tunnel segments |
| CN115977693B (en) * | 2022-12-31 | 2024-02-06 | 淮安市中球盾构技术服务有限公司 | Ultra-large block type steel sleeve and use method thereof |
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|---|---|---|---|---|
| CN107152285A (en) * | 2017-04-28 | 2017-09-12 | 淮安市中球盾构技术服务有限公司 | For shield launching and the servicing unit of reception |
| CN111911170A (en) * | 2020-06-19 | 2020-11-10 | 中铁工程服务有限公司 | Starting device of integrated shield tunneling machine and using method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2358264Y (en) * | 1997-08-04 | 2000-01-12 | 曾绍谦 | Anti-locking anti-seismic anti-loosening bolts |
| JP5547552B2 (en) * | 2010-05-20 | 2014-07-16 | 首都高速道路株式会社 | Widening structure of shield tunnel and its construction method |
| CN206257149U (en) * | 2016-11-09 | 2017-06-16 | 郑州飞机装备有限责任公司 | Anti-loose bolt nut assembly |
| CN209430201U (en) * | 2019-01-21 | 2019-09-24 | 江苏建筑职业技术学院 | Auxiliary device for shield steel sleeve receiving |
| CN210685986U (en) * | 2019-07-26 | 2020-06-05 | 河南隧通机械有限公司 | Steel sleeve bracket for launching and receiving steel sleeve |
| CN210461338U (en) * | 2019-08-14 | 2020-05-05 | 宁波金鼎紧固件有限公司 | Hexagonal head flange face antiskid bolt |
| CN213088005U (en) * | 2020-06-19 | 2021-04-30 | 中铁工程服务有限公司 | Integrated shield starting device |
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2021
- 2021-12-23 CN CN202111587679.5A patent/CN114458322B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152285A (en) * | 2017-04-28 | 2017-09-12 | 淮安市中球盾构技术服务有限公司 | For shield launching and the servicing unit of reception |
| CN111911170A (en) * | 2020-06-19 | 2020-11-10 | 中铁工程服务有限公司 | Starting device of integrated shield tunneling machine and using method thereof |
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| CN114458322A (en) | 2022-05-10 |
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