CN101929910B - T-shaped water tightness test device of shield tunnel elastic sealing gasket - Google Patents
T-shaped water tightness test device of shield tunnel elastic sealing gasket Download PDFInfo
- Publication number
- CN101929910B CN101929910B CN2010101457887A CN201010145788A CN101929910B CN 101929910 B CN101929910 B CN 101929910B CN 2010101457887 A CN2010101457887 A CN 2010101457887A CN 201010145788 A CN201010145788 A CN 201010145788A CN 101929910 B CN101929910 B CN 101929910B
- Authority
- CN
- China
- Prior art keywords
- cover plate
- sealing gasket
- elastic sealing
- cover plates
- shield tunnel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention belongs to the field of a tunnel project, in particular to a T-shaped water tightness test device of a shield tunnel elastic sealing gasket, which comprises a rectangular cover plate provided with a water inlet, and two L-shaped cover plates with air outlets, wherein the rectangular cover plate and the L-shaped cover plates are respectively jointed on one surface of the rectangular cover plate to form a jointing surface; the two L-shaped cover plates are symmetrically distributed along the axis wire of the jointing surface of the rectangular cover plate, and are mutually jointed to form another jointing surface; the cover plates on both sides of the jointing surface are correspondingly provided with an installation groove of the sealing gasket; bolts distributed on the periphery of the cover plates are tightly jointed between the jointed cover plates; and the side part of the rectangular cover plate is provided with a limit board. The invention can be used for accurately testing the waterproofing ability of an elastic sealing belt on the condition of different openings and different slab staggering quantities of duct pieces, in particular the waterproofing ability of the sealing belt at the corner part during assembling staggered joints. Thus, the evaluation system of waterproofing ability is more accurate and in place.
Description
Technical field
The invention belongs to the Tunnel Engineering field, the concrete a kind of elastic sealing gasket of shield tunnel that is meant the waterproof ability of simulation test duct pieces of shield tunnel seam waterproof sealing gasket under the staggered joint erection situation " T font " watertightness verifying attachment.
Background technology
At present, shield tunnel adopts the reinforced concrete segment lining cutting more, and its waterproof is employed in the arranged outside groove of section of jurisdiction more, embedding elastic sealing gasket in the groove.In the pipe sheet assembling process, utilize the bolt between the section of jurisdiction to compress elastic sealing gasket, to reach the effect of resisting external water pressure.
Band does not still have suitable theoretical direction in design process.Therefore belong to empirical design, simultaneously in process of production, its quality of production only can rely on simple slide calliper rule and sclerometer to carry out profile and Hardness Control.Waterproof actual conditions under can't its duty of realistic simulation; In the time of staggered joint erection; Band is owing to be the design of pocket coiled ring; Corner portion and band compress difficult control, are the weak link of waterproof, so the waterproof ability when pressing for a kind of this device of equipment testing elastic band staggered joint erection of development.
Nowadays adopt the collar plate shape packoffs in the waterproof test chamber more, can only simulate the waterproof ability of the band under the through seam assembling state.And relatedly in " the GB50446-2008 shield tunnel construction and acceptance specification " shown in the following table comprise various pipe sheet assembling forms.
| Project | The subway tunnel permissible variation | The vcehicular tunnel permissible variation | Water conservancy project tunnel permissible variation | The method of inspection | The inspection frequency |
| Lining cutting ring diameter ovality | ±5‰D | ±6‰D | ±8‰D | Calculate after the dipstick metering | 4 point/rings |
| The radially faulting of slab ends of adjacent section of |
5 | 6 | 8 | Use dipstick metering | 4 point/rings |
| Adjacent ring sheet anchor ring faulting of |
6 | 7 | 8 | Use |
1 point/ring |
Annotate: D-tunnel overall diameter.
The country that carries out at present the shield structure band detection of system in the world is mainly Japan, and its device also is circular, and the censorship band is designed to the frame type.Its design has obvious defects: can't verify the waterproof ability of band under the faulting of slab ends situation, also can't verify the waterproof ability of staggered joint erection state lower etc. simultaneously.
Summary of the invention
The objective of the invention is weak point, propose a kind of elastic sealing gasket of shield tunnel " T font " watertightness verifying attachment, comprise three block plates according to above-mentioned prior art; Two of upper plates are L shaped, set out pore, and lower plate is dull and stereotyped; The inlet opening is set, and is T shape after the assembly unit, opens rectangular channel separately; The resilient seal band sealed into adopt gluing being connected in the groove behind the frame type, rely on band to build an airtight environment merely.With bolt band is compressed, utilize the difference amount of opening of pad simulation section of jurisdiction, at the device sidewall limiting plate is installed simultaneously; With the faulting of slab ends situation of accurate simulation section of jurisdiction, after bolt is screwed, adopt the water pressure engine pressurization to puncture band until current; Record puncture hydraulic pressure at this moment is as the standard of evaluation.
The object of the invention is realized being accomplished by following technical scheme:
A kind of elastic sealing gasket of shield tunnel "
TFont " the watertightness verifying attachment, this device comprises a rectangle cover plate and two " L " type cover plates, and said rectangle cover plate is dull and stereotyped, is provided with the inlet opening, and said " L " type cover plate is provided with venthole; Said rectangle cover plate and two " L " type cover plates are fitted respectively on a face of rectangle cover plate; Constitute a binding face; Said two " L " type cover plates are symmetrically distributed along the axis of rectangle cover plate binding face, fit between two " L " type cover plates, constitute another binding face; The corresponding sealing gasket mounting groove that is provided with on the cover plate of said binding face both sides; The bolted that is distributed by the cover plate periphery between the cover plate that fits is fitted; Said rectangle cover plate side direction is equipped with limiting plate.
The bolt hole of above-mentioned bolt between rectangle cover plate and " L " type cover plate is the right-angled intersection setting.
Above-mentioned limiting plate is connected with the rectangular cap crab bolt.
The sealing gasket mounting groove of offering on the above-mentioned rectangle cover plate binding face is a rectangular channel, is positioned at rectangle cover plate binding face middle position.
The sealing gasket mounting groove of offering on the binding face of above-mentioned " L " type cover plate is inverted U.
Advantage of the present invention is; Adopt apparatus of the present invention can accurately verify the waterproof ability of resilient seal band under the situation of the different sections of jurisdiction amount of opening, different faulting of slab ends amounts; Especially the corner waterproof ability of band partly during staggered joint erection, make waterproof ability appraisement system more precisely, put in place.
Description of drawings
Fig. 1 is a section of jurisdiction faulting of slab ends assembly unit view;
Fig. 2 is a section of jurisdiction through seam assembling view;
Fig. 3 is a section of jurisdiction staggered joint erection view;
The section of jurisdiction sealing gasket test specimen synoptic diagram that Fig. 4 detects for apparatus of the present invention;
Fig. 5 is circular contour cover board arrangement simulation faulting of slab ends situation synoptic diagram;
Fig. 6 is rectangular profile cover board arrangement simulation faulting of slab ends situation synoptic diagram;
Fig. 7 is for utilizing the bolt pad simulative tube sheet amount of opening synoptic diagram;
Fig. 8 is apparatus of the present invention lower plate front view;
Fig. 9 is apparatus of the present invention lower plate vertical view;
Figure 10 is a left plate vertical view on apparatus of the present invention;
Figure 11 is a right panel vertical view on apparatus of the present invention;
Figure 12 is a front view after the assembly unit of apparatus of the present invention upper cover plate;
Figure 13 is the vertical view of Figure 12;
Figure 14 is the limiting plate front view;
Figure 15 is the limiting plate left view;
Figure 16 is the limiting plate vertical view.
Embodiment
Through embodiment characteristic of the present invention and other correlated characteristic are done further explain below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
Label 1-20 representative is section of jurisdiction 1, elastic sealing gasket 2, circular contour cover plate 3, rectangular profile cover plate 4, pad 5, limiting plate bolt hole 6, supporting leg 7, lower cover 8, sealing gasket mounting groove 9, bolt (hole) 10, inlet opening 11, upward left plate 12, floor 13, last right panel 14, limiting plate 15, venthole 16, water pressure gauge screw 17, axis 18, cover plate binding face I 19, cover plate binding face II 20 among the accompanying drawing 1-16.
Sealing gasket does not still have suitable theoretical direction in design process.Therefore belong to empirical design, simultaneously in process of production, its quality of production only can rely on simple slide calliper rule and sclerometer to carry out profile and Hardness Control.Waterproof actual conditions under can't its duty of realistic simulation, apparatus of the present invention are exactly for solving the purpose of checking design and quality inspection.
Fig. 1 is a section of jurisdiction faulting of slab ends assembly unit view.Under the normal assembly unit state, 1 of section of jurisdiction does not have position deviation, the groove alignment, and elastic sealing gasket 2 normally is embedded in the groove.Do not have closure to put in place between the section of jurisdiction, open one section size, be the section of jurisdiction amount of opening.But the faulting of slab ends situation happens occasionally, and faulting of slab ends is exactly that a section of jurisdiction does not have assembly unit to put in place in the assembly unit process, but certain dislocation has taken place, and this has directly caused in the sealing gasket assembly unit process certain dislocation having taken place also.Promptly as shown in Figure 1, when the faulting of slab ends situation took place, groove did not also line up, and certain left and right sides offset, i.e. faulting of slab ends amount take place between groove.
Fig. 2 is a section of jurisdiction through seam assembling view, and Fig. 3 is a section of jurisdiction staggered joint erection view.During staggered joint erection, mostly the bight is the weak link of waterproof, and the checking of its waterproof ability is particularly important, and watertightness check analogue means of the present invention must be according to staggered joint erection state design shown in Figure 3.Cross section shown in Figure 3 is " T " font, so apparatus of the present invention are called elastic sealing gasket of shield tunnel " T font " watertightness verifying attachment.
Section of jurisdiction sealing gasket test specimen synoptic diagram for apparatus of the present invention detection shown in Figure 4.Apparatus of the present invention designs is made up of the left and right two cover plates of cover plate in below and top, opens the elastic sealing gasket mounting groove separately, adopts gluing being connected in the groove after the resilient seal band is sealed into the frame type, relies on airtight environment of band construction merely.Through bolted, 3 test bands shown in Figure 4 are compressed.Two of upper plates are L shaped, set out pore, and lower plate is dull and stereotyped, and the inlet opening is set.Adopt bolt that band is compressed, utilize the difference amount of opening of pad simulation section of jurisdiction.In order accurately to simulate sealing gasket under the situation of dislocation; The present invention is provided with limiting plate at the lower cover of waterproof test device and three side direction of left cover or lower cover and right cover plate; It is accurate that as long as the sealing gasket fissure of displacement amount that just can guarantee inside the groove is placed in position after installing according to limiting plate in when experiment with left and right cover plate, and the water-resistant pressure that records like this is exactly the water-resistant pressure under this faulting of slab ends amount situation.
It is circular that existing related seals pad waterproof pick-up unit outline is generally, and limiting plate is not installed, and therefore can't accurately limit the faulting of slab ends situation of sealing gasket.Fig. 5, Fig. 6 are respectively circle and rectangular profile cover plate 4 device simulation faulting of slab ends situation synoptic diagram.Like Fig. 5, shown in Figure 6, even circular contour cover plate 3 devices have been installed limiting plate, its position-limiting action is also not as good as adopting under the right-angle side situation, and is more closely connected for the upper cover plate restriction of device.Therefore the device outline of rectangle just can be realized the high precision of faulting of slab ends simulation as long as machining precision is enough.Therefore, the upper and lower two cover plates of the present invention all adopts rectangular-shaped.
In addition, the rectangle cover plate can also pass through in the bolt hole 10 employing right-angled intersection settings of cover plate up and down, with the crisscross faulting of slab ends situation in simulation edge.
Fig. 7 is for utilizing the bolt pad simulative tube sheet amount of opening synoptic diagram, through adding the amount of opening between pad 5 simulation sections of jurisdiction.Apparatus of the present invention have guaranteed the precision of the amount of opening through pad, have guaranteed the precision of faulting of slab ends through limiting plate.In processing limiting plate 15 and pad 5, machining tolerance must strictly be controlled, to satisfy testing requirements.
Fig. 8, Fig. 9 are respectively apparatus of the present invention lower plate front view and vertical view, and Figure 10, Figure 11 are respectively the vertical view of left plate and last right panel on apparatus of the present invention, and Figure 12 is a front view after the assembly unit of apparatus of the present invention upper cover plate, and Figure 13 is the vertical view of Figure 12.
Visible from Fig. 8-Figure 13; The elastic sealing gasket of shield tunnel of present embodiment " yi word pattern " watertightness verifying attachment comprises a rectangle cover plate and two " L " type cover plates; The rectangle cover plate that supporting leg 7 supports is that lower cover 8 is for dull and stereotyped; Be provided with inlet opening 11, " L " type cover plate is provided with venthole 16 and water pressure gauge screw 17.Rectangle cover plate and two " L " type cover plates are fitted respectively on a face of rectangle cover plate; Constitute a binding face I 19; Two " L " type cover plates 12,14 are symmetrically distributed along the axis 18 of rectangle cover plate binding face, fit between two " L " type cover plates, constitute another binding face II 20.The corresponding sealing gasket mounting groove 9 that is provided with on the cover plate of binding face both sides adopts gluing being connected in the sealing gasket mounting groove with elastic sealing gasket shown in Figure 4, relies on band to build an airtight environment merely.Corresponding to elastic sealing gasket shown in Figure 4, the sealing gasket mounting groove of offering on the lower cover binding face is a rectangular channel, is positioned at rectangle cover plate binding face middle position, settles below rectangle closing seam band as shown in Figure 4.The sealing gasket mounting groove of offering on the binding face of two " L " type cover plates then is inverted U, and is as shown in Figure 4, offers two inverted U sealing gasket mounting grooves 9 on every " L " type cover plate, rectangle closing seam band of synthetic arrangement.
The bolt 10 fastening applyings that distribute by the cover plate periphery between the cover plate that fits.Be the crisscross faulting of slab ends situation in simulation edge, the bolt hole 10 of bolt between rectangle cover plate and " L " type cover plate is provided with and is the right-angled intersection setting.
Be accurately simulation faulting of slab ends situation, and measure the faulting of slab ends amount, in the present embodiment, the lower cover 8 of waterproof test device with the laterally disposed limiting plate of last right panel 14.Figure 14-shown in Figure 16 is the three-view diagram of limiting plate.Bolt is connected limiting plate bolt hole 10 as shown in Figure 9 between limiting plate and the lower cover.Through the specification (limiting plate has 2mm, 4mm, 6mm plurality of specifications) of adjustment limiting plate 15, the faulting of slab ends amount between each cover plate of scalable.With a last left side, go up after position after right cover plate is installed according to limiting plate places, guarantee that promptly the sealing gasket fissure of displacement amount of groove the inside is accurate.
Through the machining tolerance of strict control limiting plate and cushion block, contrive equipment can guarantee that the faulting of slab ends precision reaches 0.2mm, opens accuracy of measurement and reaches 0.2mm in the present embodiment.
About bolt is screwed, behind the cover plate, adopt the water pressure engine pressurization to puncture sealing gasket until current, record puncture hydraulic pressure at this moment is as the standard of evaluation segment joint waterproof sealing gasket waterproof ability under the staggered joint erection state.
Claims (5)
- An elastic sealing gasket of shield tunnel " TFont " the watertightness verifying attachment, it is characterized in that this device comprises a rectangle cover plate and two " L " type cover plates, said rectangle cover plate is dull and stereotyped, is provided with the inlet opening, said " L " type cover plate is provided with venthole; Said rectangle cover plate and two " L " type cover plates are fitted respectively on a face of rectangle cover plate; Constitute a binding face; Said two " L " type cover plates are symmetrically distributed along the axis of rectangle cover plate binding face, fit between two " L " type cover plates, constitute another binding face; The corresponding sealing gasket mounting groove that is provided with on the cover plate of said binding face both sides; The bolted that is distributed by the cover plate periphery between the cover plate that fits is fitted; Said rectangle cover plate side direction is equipped with limiting plate.
- A kind of elastic sealing gasket of shield tunnel 2. as claimed in claim 1 " TFont " the watertightness verifying attachment, it is characterized in that the bolt hole of said bolt between rectangle cover plate and " L " type cover plate is the right-angled intersection setting.
- A kind of elastic sealing gasket of shield tunnel 3. as claimed in claim 1 " TFont " the watertightness verifying attachment, it is characterized in that said limiting plate is connected with the rectangular cap crab bolt.
- A kind of elastic sealing gasket of shield tunnel 4. as claimed in claim 1 " TFont " the watertightness verifying attachment, it is characterized in that the sealing gasket mounting groove of offering on the said rectangle cover plate binding face is a rectangular channel, be positioned at rectangle cover plate binding face middle position.
- A kind of elastic sealing gasket of shield tunnel 5. as claimed in claim 1 " TFont " the watertightness verifying attachment, it is characterized in that the sealing gasket mounting groove of offering on the binding face of said " L " type cover plate is inverted U.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101457887A CN101929910B (en) | 2010-04-14 | 2010-04-14 | T-shaped water tightness test device of shield tunnel elastic sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101457887A CN101929910B (en) | 2010-04-14 | 2010-04-14 | T-shaped water tightness test device of shield tunnel elastic sealing gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101929910A CN101929910A (en) | 2010-12-29 |
| CN101929910B true CN101929910B (en) | 2012-02-29 |
Family
ID=43369211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101457887A Expired - Fee Related CN101929910B (en) | 2010-04-14 | 2010-04-14 | T-shaped water tightness test device of shield tunnel elastic sealing gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101929910B (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778337A (en) * | 2012-07-18 | 2012-11-14 | 同济大学 | Waterproof ability testing system of three-directional loaded shield tunnel duct piece joint seam |
| CN103267617B (en) * | 2013-05-13 | 2015-09-02 | 上海盾构设计试验研究中心有限公司 | Shield structure Butt sealing performance test apparatus |
| DE102013110928B4 (en) * | 2013-09-13 | 2015-06-03 | Dätwyler Sealing Technologies Deutschland Gmbh | Test device for testing gaskets with anchoring feet and their use |
| CN104964796B (en) * | 2015-07-14 | 2016-09-14 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of elastic sealing gasket of shield tunnel " twice are waterproof " watertightness method of inspection |
| CN105157922B (en) * | 2015-07-14 | 2016-09-14 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of elastic sealing gasket of shield tunnel is the watertightness method of inspection when different faulting of slab ends amount |
| CN104964797B (en) * | 2015-07-14 | 2016-09-14 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of elastic sealing gasket of shield tunnel " T font " watertightness method of inspection |
| CN105181270A (en) * | 2015-09-18 | 2015-12-23 | 中国矿业大学(北京) | Waterproof testing method for vertical seam using terpolymer EP rubber sealing rod |
| CN105738211A (en) * | 2015-09-18 | 2016-07-06 | 中国矿业大学(北京) | Waterproof test method for longitudinal seams in steel plates with rubber water shut-off strips |
| CN105403366A (en) * | 2015-09-23 | 2016-03-16 | 同济大学 | Anti-permeability performance test system for shield tunnel segment circumferential seams |
| CN105300601A (en) * | 2015-09-23 | 2016-02-03 | 同济大学 | Shield tunnel segment longitudinal seam impervious performance test system |
| CN105911249B (en) * | 2016-04-12 | 2017-12-19 | 天津大学 | Simulate the test method of sandy soils erodsion loss around duct pieces of shield tunnel seam |
| CN105738220B (en) * | 2016-04-12 | 2018-11-09 | 天津大学 | Consider the section of jurisdiction elastic sealing gasket waterproof test method that the soil body influences |
| CN106969884B (en) * | 2017-04-21 | 2023-05-16 | 中铁第四勘察设计院集团有限公司 | Waterproof test method and device for tunnel segment elastic sealing gasket |
| CN107101788A (en) * | 2017-04-26 | 2017-08-29 | 同济大学 | Shield tunnel lining segment T words stitch two seals pad waterproof test device and method |
| CN107817078A (en) * | 2017-10-31 | 2018-03-20 | 西南石油大学 | A kind of segment joint sealing gasket water resistance test device and experimental method |
| CN108562402A (en) * | 2018-03-07 | 2018-09-21 | 西南交通大学 | A kind of duct pieces of shield tunnel seam multi layer waterproof experimental rig |
| CN108279097A (en) * | 2018-03-09 | 2018-07-13 | 西南交通大学 | A kind of cross duct pieces of shield tunnel seam waterproof experimental rig |
| CN108318189B (en) * | 2018-03-09 | 2024-05-28 | 西南交通大学 | Shield tunnel seam waterproof test device for simulating earthquake response behavior |
| CN108286448A (en) * | 2018-04-27 | 2018-07-17 | 西南石油大学 | A kind of duct pieces of shield tunnel waterproof sealing gasket |
| CN108447571A (en) * | 2018-05-10 | 2018-08-24 | 上海核工程研究设计院有限公司 | The runner simulator of core process pipe leak rate test |
| CN114509350B (en) * | 2022-02-15 | 2024-02-23 | 中南大学 | Segment joint double-channel waterproof test device and method for simulating inner cavity water pressure effect |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201297177Y (en) * | 2008-12-03 | 2009-08-26 | 衡水骏达橡胶有限公司 | A shield tunneling duct piece elastic gasket |
| CN101667220A (en) * | 2009-09-22 | 2010-03-10 | 同济大学 | Simulation method of shield tunnel joint structure |
-
2010
- 2010-04-14 CN CN2010101457887A patent/CN101929910B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201297177Y (en) * | 2008-12-03 | 2009-08-26 | 衡水骏达橡胶有限公司 | A shield tunneling duct piece elastic gasket |
| CN101667220A (en) * | 2009-09-22 | 2010-03-10 | 同济大学 | Simulation method of shield tunnel joint structure |
Non-Patent Citations (2)
| Title |
|---|
| 朱祖熹.中日德盾构隧道衬砌接缝密封垫研究技术之比较.《地下工程与隧道》.1994,(第04期), * |
| 王鹏.盾构密封垫材质选型试验研究.《中国建筑防水》.2007,(第08期), * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101929910A (en) | 2010-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101929910B (en) | T-shaped water tightness test device of shield tunnel elastic sealing gasket | |
| CN101929911B (en) | In-line water tightness testing device for elastic sealing gasket of shield tunnel | |
| CN104075854A (en) | Shield segment joint anti-penetrability performance test device | |
| CN202539913U (en) | Locking piece screening pressing machine | |
| CN105403366A (en) | Anti-permeability performance test system for shield tunnel segment circumferential seams | |
| CN105300601A (en) | Shield tunnel segment longitudinal seam impervious performance test system | |
| CN201196634Y (en) | Coal rock, gas coupling osmosis bidirectional loading tester | |
| CN212340562U (en) | Shield tunnel segment joint waterproof test device capable of detecting water leakage position | |
| CN108414425A (en) | A kind of shield tunnel seam slip casting repair materials water resistance test system and method | |
| CN205157142U (en) | Pipe fitting self sealing nature test fixture | |
| CN104192265A (en) | Deck face hatch cover system installing method | |
| CN203376120U (en) | Lithium battery gas tightness detection apparatus | |
| CN105738220A (en) | Pipe piece elastic sealing gasket water tightness testing method considering soil body influences | |
| CN102288096A (en) | Shaft declination angle measurement device | |
| CN205246284U (en) | Shield tunnel segment ring stitches impervious performance testing system | |
| CN106786240A (en) | A kind of channel-type cable bridge of easy access | |
| CN109765011A (en) | A kind of the cover leak test plant | |
| CN204694409U (en) | PE ball valve air tightness test machine | |
| CN205120307U (en) | Once mark many differential pressure transmitter calibration system clamping device | |
| CN203237404U (en) | Passenger cabin main pipe positioning and installing device | |
| CN103307116B (en) | The shaft supporting structure of a kind of flexibility | |
| CN209387221U (en) | A kind of the cover leak test plant | |
| CN106441034A (en) | Detector for front radian of top cover | |
| CN206869434U (en) | A kind of aluminium alloy chain cover pin and oil seal pressing equipment | |
| CN105716797A (en) | Nuclear power station measuring chamber sealing leak detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20101229 Assignee: Hongrun Construction Group Co., Ltd. Assignor: Tongji University Contract record no.: 2013310000039 Denomination of invention: T-shaped water tightness test device of shield tunnel elastic sealing gasket Granted publication date: 20120229 License type: Common License Record date: 20130516 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120229 Termination date: 20180414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |