CN107227963A - Shield tunnel straightway pipe ring rigidity of structure Worm-gear type stiffening device - Google Patents
Shield tunnel straightway pipe ring rigidity of structure Worm-gear type stiffening device Download PDFInfo
- Publication number
- CN107227963A CN107227963A CN201710458304.6A CN201710458304A CN107227963A CN 107227963 A CN107227963 A CN 107227963A CN 201710458304 A CN201710458304 A CN 201710458304A CN 107227963 A CN107227963 A CN 107227963A
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- pull bar
- loading
- worm
- gear
- screw
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- 238000011068 loading method Methods 0.000 claims abstract description 72
- 230000009466 transformation Effects 0.000 claims abstract description 31
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 28
- 238000005452 bending Methods 0.000 claims description 8
- 238000010008 shearing Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 241000237858 Gastropoda Species 0.000 description 5
- 239000002689 soil Substances 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to a kind of shield tunnel straightway pipe ring rigidity of structure Worm-gear type stiffening device, the rigidity for the shield tunnel adjacent tubes interannular strengthened for active, including pull bar 2 is reinforced, it is arranged on the fixing end 1 and loading end 3 for reinforcing the two ends of pull bar 2.The fixing end includes the standing screw 11 being connected with each other with circular shear connector and rotation end stand 12；Reinforcing pull bar 2 includes the part of leading screw 21, the part of smooth round bar 22 and reinforces pull bar rhombus first 23；Loading end includes standing screw 31, detachable rotary spanner 32, loading moment transformation case 33, torque transformation case fixing bolt 34 and the fixed part of end stand 35 5, and loading moment changes case 33 and tightened together by fixing bolt 34 with fixed end stand 35；Worm gear 335 is arranged inside loading moment transformation case 33, in loading moment transformation case 33, is provided with the cavity that diameter is more than the bore dia of leading screw 21.
Description
Technical field
The invention belongs to Tunnel Engineering technical field, it is related to a kind of worm gear in the shield tunnel straightway pipe ring rigidity of structure
Worm type stiffening device.
Background technology
Shield tunnel liner be usually it is assembled by prefabricated pipe section in shield tail, segment joint be divided into longitudinal seam and
Ring seam, edge joint position is the weak link of liner structure stress.Shield tunnel adjacent tubes ring structure globality relies primarily on ring
Between bolt maintain, because linear deformation occurs in a variety of causes in construction work, including trolley vibration load, ooze
Leakage, different geology, different buried depth, different construction factors, constraint difference, Different Ground load and different surrounding enviroment changes etc.
Various factors.The resisting longitudinal deformability in tunnel is very fragile, and the factor for causing tunnel deformation is typically to cause tunnel deformation to not
The direction of profit is developed.After tunnel linear deformation or radius of curvature reach a certain amount value, pipe ring deformation can occupy shield tunnel
Under structural construction boundary, serious conditions, it is possible to occur that section of jurisdiction circumferential weld joint open is excessive and leak or the destruction of section of jurisdiction longitudinal tensile,
Influence the security and usability of shield tunnel.
Particularly in the construction time, because ground disturbance shield tunnel at initial stage differential settlement is more serious, tunnel adjacent tubes
Interannular occur open deformation and dislocation deformation etc. engineering problem may be more obvious.Current shield tunnel adjacent tubes ring structure
Steadiness relies primarily on interannular bolt to maintain, and lacks a kind of adjacent tubes ring structure rigidity active stiffening device, so urgently grinding
A kind of adjacent tubes ring structure rigidity stiffening device is made, actively strengthens still being in the shield tunnel ring structure of construction time.
The content of the invention
It is an object of the invention to provide a kind of shield tunnel straightway pipe ring rigidity of structure Worm-gear type stiffening device, skill
Art scheme is as follows：
A kind of shield tunnel straightway pipe ring rigidity of structure Worm-gear type stiffening device, the shield tunnel strengthened for active
The rigidity of road adjacent tubes interannular, including pull bar 2 is reinforced, it is arranged on the fixing end 1 and loading end 3 for reinforcing the two ends of pull bar 2, its feature
It is,
The fixing end includes the standing screw 11 being connected with each other with circular shear connector and rotation end stand 12, rotates end stand 12
It can be rotated freely around the axle of standing screw 11, rotation end stand 12 is provided with to the interspersed interstitial hole for reinforcing pull bar 2, in interstitial hole
Place is provided with the tongue-and-groove 13 for preventing that reinforcing pull bar from rotating；
Reinforcing pull bar 2 includes the part of leading screw 21, the part of smooth round bar 22 and reinforces pull bar rhombus first 23, is drawn close to reinforcing
The position of bar rhombus first 23 is provided with and prevented the anti-rotation tenon 24 that the tongue-and-groove 13 for reinforcing pull bar rotation matches；
Loading end, which includes standing screw 31, detachable rotary spanner 32, loading moment transformation case 33, torque transformation case, to be fixed
Bolt 34 and the fixed part of end stand 35 5, fixed end stand 35 are connected in the form of shear connector with standing screw 31, it is possible to around
The axis of standing screw 31 is rotated freely, and loading moment changes case 33 and tightened together by fixing bolt 34 with fixed end stand 35.
The detachable rotary spanner 32 is corner box spanner, and changing four angular poles on case with loading moment is engaged,
Can freely it unload；
The loading moment transformation case 33 includes bending moment box bracket 331, active loading axis 332, pitch control shaft 333, driven snail
Bar axle 334 and worm gear 335, wherein, active loading axis 332, pitch control shaft 333, driven worm screw 334 and turbine 335 pass through fixing axle
Position part is fixed, the base of detachable rotary spanner 32 is connected with the top of active loading axis 332 by corner sleeve；
Gear wheel and little gear are fixed with pitch control shaft 333, is mutually stung by gear wheel and the gear that is fixed in active loading axis 332
Close, be mutually twisted by little gear and the gear that is fixed on driven worm shaft 334；Snail is provided with driven worm shaft 334
Bar, and be mutually twisted by worm screw with turbine 335, worm gear 335 is provided with the internal thread matched with leading screw 21, and passes through leading screw
21 cause worm gear 335 to be stuck in by shearing in loading moment transformation case, and worm gear 335 is rotated, and leading screw 21 is tightened up, in the pulling force of pull bar
In the presence of, adjacent tubes interannular is mutually adjacent to, so as to strengthen interannular rigidity；
Worm gear 335 is arranged inside loading moment transformation case 33, in loading moment transformation case 33, is provided with diameter and is more than
The cavity of the bore dia of leading screw 21, worm gear is stuck in loading moment transformation case by shearing.
The present invention actively improves the rigidity between straightway pipe ring in the construction time, strengthens the globality of liner structure, and in lining
Build surrounding slip casting intensity and reach that code requirement and soil layer disturbance are detachable after relatively stable；When engineering enters the operation phase, bad
When the natural calamity such as geology location or earthquake occurs, the internal force between straightway pipe ring is actively improved, strengthens the entirety of liner structure
Property, treat that liner structure is detachable after the completion of reinforcing.With advantages below：
Rigidity is reinforced between the present apparatus can actively increase shield tunnel straightway pipe ring, is effectively reduced due to severe geological conditions
The changing of the relative positions between caused pipe ring, the globality for shield tunnel in severe type communities construction reinforced pipe ring structure provides method
Measure；2. in the present apparatus, loading device is by mechanical devices such as worm gear in spacing boxes and worm screws, and number of parts is few, compact conformation,
Sufficiently large loading tensile can be relatively easily reached, is shield tunnel construction process and later stage using adding safe guarantor
Barrier；3. the angle of spiral of present apparatus spacing boxes worm screw, which is less than in the equivalent friction angle in ratcheting face, loading procedure, has self-locking performance,
It can prevent from reinforcing draw-bar pull resilience；4. in terms of construction, install convenient is simple to operate, convenient disassembly.
Brief description of the drawings
Brief description of the drawings
Fig. 1 is the overall schematic of the present invention；
Fig. 2 (a) and (b) are fixing end front view and shear connector position enlarged drawing respectively；
Fig. 3 is to reinforce pull bar figure；
Fig. 4 is loading end front view；
Fig. 5 is loading end-view；
Fig. 6 is loading moment transformation case front view；
Fig. 7 is spacing boxes internal structural map.
Brief description of the drawings is as follows：
1- fixing ends
11- standing screws, 12- rotations end stand, 13- prevent from reinforcing the anti-rotation tongue-and-groove of pull bar rotation
2- reinforces pull bar
The smooth round bar of 21- leading screws, 22-, 23- reinforce pull bar rhombus head, 24- anti-rotation tenons
3- loading ends
The detachable rotary spanner of 31- standing screws, 32-, 33- loading moments transformation case, 34- torques transformation case fix spiral shell
Bolt, 35- fix end stand, 331- bending moments box bracket, 332- actives loading axis, 333- pitch control shafts, the driven worm shafts of 334-, 335- snails
Wheel
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
It is shown as shown in figs. 1-7, shield tunnel ring structure rigidity active stiffening device of the present invention, including reinforcing pull bar 2,
Be arranged on the fixing end 1 and loading end 3 for reinforcing pull bar 2 two ends, the present invention can (1) actively improved in the construction time between straightway pipe ring
Rigidity, strengthen liner structure globality, and around lining cutting slip casting intensity reach code requirement and soil layer disturbance it is more steady
It is detachable after fixed；(2) when engineering enters the operation phase, when the natural calamity such as Unfavorable Conditions or earthquake occurs, actively improve
Internal force between straightway pipe ring, strengthens the globality of liner structure, treats that liner structure is detachable after the completion of reinforcing.
The fixing end includes the standing screw 11 being connected with each other with circular shear connector and rotation end stand 12, in order to more preferable
Pull bar 2 will be reinforced while inserting the fixing end at two ends, rotation end stand 12 can be rotated freely around the axle of standing screw 11.
The lower end of the rotation end stand 12 is deep into the top of standing screw 11, and rotation end stand 12 is provided with to wear
The interstitial hole for reinforcing pull bar 2 is inserted, and provided with the tongue-and-groove 13 for preventing that reinforcing pull bar from rotating；
Reinforcing pull bar includes the part of leading screw 21, the part of smooth round bar 22 and reinforces pull bar rhombus first 23, is drawn close to reinforcing
The position of bar rhombus first 23 is provided with and prevented the anti-rotation tenon 24 that the tongue-and-groove for reinforcing pull bar rotation matches；
Loading end includes standing screw 31, detachable rotary spanner 32, loading moment transformation case 33, fixing bolt 34 and consolidated
The part of fixed end platform 35 5 is constituted, and standing screw 31 is fixed at tunnel segment hanging hole, and fixed end stand 35 is in the form of shear connector and solid
Determine screw rod 31 to be connected, in order to preferably coordinate reinforcing pull bar 2, fixed end stand can be rotated freely around the axis of standing screw 31,
Loading moment transformation case 33 tightens together by fixing bolt 34 with fixed end stand 35.
The detachable rotary spanner 32 is corner box spanner, and changing four angular poles on case with loading moment is engaged,
Can freely it unload；
The loading moment transformation case 33 includes bending moment box bracket 331, active loading axis 332, pitch control shaft 333, driven snail
Bar axle 334 and worm gear 335, wherein, active loading axis 332, pitch control shaft 333, driven worm screw 334 and turbine 335 pass through fixing axle
Position part is fixed, the base of detachable rotary spanner 32 is connected with the top of active loading axis 332 by corner sleeve；
Gear wheel and little gear are fixed with pitch control shaft 333, is mutually stung by gear wheel and the gear that is fixed in active loading axis 332
Close, be mutually twisted by little gear and the gear that is fixed on driven worm shaft 334；Snail is provided with driven worm shaft 334
Bar, and be mutually twisted by worm screw with turbine 335, worm gear 335 is provided with the internal thread matched with leading screw 21, and worm gear 335 revolves
Turn, leading screw 21 is tightened up, so as to generate the pulling force of our needs；
Worm gear 335 is arranged inside loading moment transformation case 33, because worm gear diameter is more than in loading moment transformation case 33
The diameter in the interspersed hole of leading screw 21, so worm gear is stuck in loading moment transformation case by shearing.
It is specifically described below
(1) fixing end includes standing screw 11, rotation end stand 12.
The standing screw length 300mm；
The length that the rotation end stand is deep into standing screw part is 50mm, and the interspersed pull bar portion size of reinforcing in top is
80mm × 80mm × 80mm, a diameter of 60mm of interstitial hole, and provided with the tongue-and-groove for preventing that reinforcing pull bar from rotating.
(2) pull bar length is reinforced for 1660mm, a diameter of 55mm, including the part of leading screw 21, its length is 200mm；It is smooth
The part of round bar 22, it is 60mm that length, which is 1400mm and reinforces first 23 length of pull bar rhombus, and circumscribed circle diameter is 80mm.
(3) loading end includes standing screw 31, detachable rotary spanner 32, loading moment transformation case 33, torque transformation case
Fixing bolt 34, the fixed part of end stand 35 5 composition.
The length 310mm of standing screw 31；
The detachable rotary spanner 32 is corner box spanner；
The loading moment changes case 33 by bending moment box bracket 331, active loading axis 332, pitch control shaft 333, driven worm screw
Axle 334, worm gear 335；
The size of bending moment box bracket 331 is 50mm × 100mm × 80mm, passes through the mechanical device such as gear and worm screw turbine
Transmission, wherein, active loading axis 332, pitch control shaft 333, driven worm screw 334 and turbine 335 are by the position of fixing axle to portion
Part is fixed, and the base of detachable rotary spanner 32 is connected with the top of active loading axis 332 by corner sleeve；In pitch control shaft 333
Gear wheel is mutually twisted with the middle gear of active loading axis 332, and little gear is mutually twisted with the driven middle gear of worm shaft 334；It is driven
Worm screw is mutually twisted with turbine 335 in worm shaft 334.In loading procedure, first by two groups of teeth wheel active loading axis 332 and bending moment
333 pairs of rotating torques manually applied of axle are amplified, and multiplication factor can reach 4 times, after driven 334 pairs of amplifications of worm screw
Torque carry out transmission and amplify again, by turbine 335 act on reinforcing pull bar on, multiplication factor reaches 64 times, whole bending moment
Case is 256 times to torque amplification factors, and the torque of artificial very little is changed into very big mechanical force moment.
The 332 active loading axis, axial length 35mm, a diameter of 10mm, biretta position boss height is 10mm, and gear is pressed
Length compares 2:3 position is fixed at cylinder axis, gear parameter：The number of teeth is that 12, pressure angle is that 20, helical angle is that 0, modulus is
1mm, the facewidth are that 10mm, addendum coefficient are that 1, tip clearance coefficient is that 0.25, root fillet is 0.38.
The pitch control shaft 333, is made up of axle, gear wheel and little gear.Axial length is 12mm, a diameter of 6mm；Gear wheel is joined
Number：The number of teeth is that 24, pressure angle is that 20, helical angle is that 0, modulus is that 1mm, the facewidth are that 10mm, addendum coefficient are 1, tip clearance coefficient
It is 0.38 for 0.25, root fillet；Little gear parameter：The number of teeth is that 12, pressure angle is that 20, helical angle is that 0, modulus is 1mm, the facewidth
It is that 1, tip clearance coefficient is that 0.25, root fillet is 0.38 for 10mm, addendum coefficient.
The driven worm shaft 334, by axle, gear, worm screw composition.Gear parameter：The number of teeth is that 24, pressure angle is 20, spiral shell
Swing angle is that 0, modulus is that 1mm, the facewidth are that 10mm, addendum coefficient are that 1, tip clearance coefficient is that 0.25, root fillet is 0.38；Worm screw
Parameter：Number of threads is that 1, worm face width is that 46.75, modulus is that 2.5, reference diameter of worm is that 22.4, pressure angle is 20, led
Journey angle is that 6.37, dextrorotation is that 2, gearratio is that 62, centre-to-centre spacing is 88.7.
The worm gear 335, worm gear parameter：Addendum coefficient is that 1, tip clearance coefficient is that 0.25, root fillet is the 0.38, facewidth
It is that 117.8, section registration is 1.88 for 19.18, width angle.
The torque changes case fixing bolt 34, a diameter of 14mm of nut circumcircle, and thickness is 5mm, and screw diameter is
8mm。
The outer profile size of fixed end stand 35 is 80mm × 100mm × 80mm.
The fixing end that the present apparatus contains includes standing screw, rotation end stand, and standing screw main function is to consolidate the present apparatus
It is scheduled on section of jurisdiction, rotation end stand not only can be such that the present apparatus more installs around described 360 degree of rotations of standing screw central shaft
It is convenient, and the angle deviating error between section of jurisdiction can be tackled.
There is provided anti-rotation tongue-and-groove, reinforcing pull bar includes screw part and smooth round bar at the rotation end stand 12 that the present apparatus contains
Part, screw part is provided with anti-rotation tenon, and pull bar rotation is reinforced so as to realize and prevent from adding in uninstall process.
The present apparatus contains loading moment transformation case 33, and internal force pipe ring accurately can be loaded by spanner.By this
Device is loaded, and loading procedure is simple, and detachable rotary spanner 32 is rotated one week, active force 0.54MPa can be improved, so that real
It is now accurate to strengthen the straightway pipe ring rigidity of structure.
Using the shield tunnel ring structure rigidity of the present embodiment worm gear type stiffening device when, first, treat shield tail
After the completion of pipe sheet assembling, blocked at standing screw hexagonal (hexagon)nut 11, and screwed in the hole for hoist of shield duct piece with spanner.Together
The operation of sample, standing screw 31 is screwed in adjacent tunnel segment hanging hole.Fixed end stand is respectively mounted at the top of two standing screws
35 and rotation end stand 12, then loading moment spacing boxes 33 are installed to after torque transformation case fixing bolt 34, will reinforce pull bar from
Rotate and inserted at end stand 12, the fixed end stand 35 of screw part insertion installs detachable rotary spanner 32, you can use detachable rotation
Turn spanner 32 to strengthen the rigidity of structure pipe ring by the present apparatus.After the completion of loading, detachable rotary spanner 32 can be entered
Row is removed, the loading for other pipe ring location means.
After the disturbance of shield soil layer is stable, the present apparatus can be removed.First, using detachable 32 pairs of loadings of rotary spanner
Torque spacing boxes 33 are unloaded, and first remove loading moment spacing boxes 33；Second step, which is removed, reinforces pull bar, can will reinforce pull bar
Detached at rotation end stand 12；Finally, after fixed end stand 35 and rotation end stand 12 being removed, two standing screws are screwed out.
Claims (1)
1. a kind of shield tunnel straightway pipe ring rigidity of structure Worm-gear type stiffening device, the shield tunnel strengthened for active
The rigidity of adjacent tubes interannular, including pull bar (2) is reinforced, the fixing end (1) and loading end (3) for reinforcing pull bar (2) two ends are arranged on,
Characterized in that,
The fixing end includes the standing screw (11) being connected with each other with circular shear connector and rotation end stand (12), rotates end stand
(12) it can be rotated freely around standing screw (11) axle, rotation end stand (12) is provided with to the interspersed centre for reinforcing pull bar (2)
Hole, provided with the tongue-and-groove (13) for preventing that reinforcing pull bar from rotating at interstitial hole；
Reinforce pull bar (2) include leading screw (21) part, smooth round bar (22) partly with reinforce pull bar rhombus head (23), close to plus
Gu the position of pull bar rhombus head (23) is provided with and prevented the anti-rotation tenon (24) that the tongue-and-groove (13) for reinforcing pull bar rotation matches；
Loading end includes standing screw (31), detachable rotary spanner (32), loading moment transformation case (33), torque transformation case and consolidated
Determine bolt (34) and the fixed part of end stand (35) five, fixed end stand (35) is connected in the form of shear connector with standing screw (31)
Connect, it is possible to which around standing screw (31), axis is rotated freely, loading moment transformation case (33) is by fixing bolt (34) with fixing
End stand (35) tightens together；
The detachable rotary spanner (32) is corner box spanner, and changing four angular poles on case with loading moment is engaged, energy
It is enough freely to unload；
Loading moment transformation case (33) include bending moment box bracket (331), active loading axis (332), pitch control shaft (333), from
Dynamic worm shaft (334) and worm gear (335), wherein, active loading axis (332), pitch control shaft (333), driven worm screw (334) and turbine
(335) part is fixed by the position of fixing axle, base and active loading axis (332) top of detachable rotary spanner (32)
It is connected by corner sleeve；Gear wheel and little gear are fixed with pitch control shaft (333), is actively added with being fixed on by gear wheel
The gear carried on axle (332) is mutually twisted, and is mutually twisted by little gear and the gear that is fixed on driven worm shaft (334)；
Worm screw is provided with driven worm shaft (334), and is mutually twisted by worm screw with turbine (335), worm gear (335) be provided with
The internal thread that leading screw (21) matches, and worm gear (335) is stuck in loading moment by shearing and is changed in case by leading screw (21),
Worm gear (335) is rotated, and leading screw (21) is tightened up, in the presence of the pulling force of pull bar, and adjacent tubes interannular is mutually adjacent to, so as to strengthen
Interannular rigidity；
Worm gear (335) is arranged at loading moment transformation case (33) inside, in loading moment transformation case (33), is provided with diameter big
In the cavity of leading screw (21) bore dia, worm gear is stuck in loading moment transformation case by shearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710458304.6A CN107227963A (en) | 2017-06-16 | 2017-06-16 | Shield tunnel straightway pipe ring rigidity of structure Worm-gear type stiffening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710458304.6A CN107227963A (en) | 2017-06-16 | 2017-06-16 | Shield tunnel straightway pipe ring rigidity of structure Worm-gear type stiffening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107227963A true CN107227963A (en) | 2017-10-03 |
Family
ID=59935482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710458304.6A Pending CN107227963A (en) | 2017-06-16 | 2017-06-16 | Shield tunnel straightway pipe ring rigidity of structure Worm-gear type stiffening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107227963A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983473A (en) * | 2021-03-19 | 2021-06-18 | 上海市城市建设设计研究总院（集团）有限公司 | Shield segment bidirectional staggered joint splicing structure with mortise and tenon joints and construction method thereof |
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| JP2001207796A (en) * | 2000-01-21 | 2001-08-03 | Ps Corp | Segment for tunnel lining and its assembly method |
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| CN205989323U (en) * | 2016-08-27 | 2017-03-01 | 浙江水利水电学院 | A kind of mobile device of the manually adjustable height for automobile inspection |
| CN206071597U (en) * | 2016-10-09 | 2017-04-05 | 中铁十八局集团有限公司 | A kind of TBM receives section of jurisdiction take-up device |
| CN206111190U (en) * | 2016-10-30 | 2017-04-19 | 成都建工路桥建设有限公司 | Rectangular shield digs tube coupling connected system in top |
| CN106761821A (en) * | 2017-02-16 | 2017-05-31 | 同济大学 | Pin-connected panel tunnel enhancing structure |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001207796A (en) * | 2000-01-21 | 2001-08-03 | Ps Corp | Segment for tunnel lining and its assembly method |
| CN205989323U (en) * | 2016-08-27 | 2017-03-01 | 浙江水利水电学院 | A kind of mobile device of the manually adjustable height for automobile inspection |
| CN206071597U (en) * | 2016-10-09 | 2017-04-05 | 中铁十八局集团有限公司 | A kind of TBM receives section of jurisdiction take-up device |
| CN106286406A (en) * | 2016-10-25 | 2017-01-04 | 珠海格力电器股份有限公司 | Rotating machinery structure and vane diffuser thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983473A (en) * | 2021-03-19 | 2021-06-18 | 上海市城市建设设计研究总院（集团）有限公司 | Shield segment bidirectional staggered joint splicing structure with mortise and tenon joints and construction method thereof |
| CN112983473B (en) * | 2021-03-19 | 2022-07-08 | 上海市城市建设设计研究总院（集团）有限公司 | Shield segment bidirectional staggered joint splicing structure with mortise and tenon joints and construction method thereof |
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