CN208009401U - Double glue mend film devices under water for a kind of vacuum preloading - Google Patents
Double glue mend film devices under water for a kind of vacuum preloading Download PDFInfo
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- CN208009401U CN208009401U CN201820186092.0U CN201820186092U CN208009401U CN 208009401 U CN208009401 U CN 208009401U CN 201820186092 U CN201820186092 U CN 201820186092U CN 208009401 U CN208009401 U CN 208009401U
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Abstract
The utility model discloses a kind of vacuum preloading, double glue mend film device under water, including pressuring diaphragm, the bottom surface of the pressuring diaphragm are square, and both sides are respectively arranged with geometrical clamp, and the top of the pressuring diaphragm is equipped with barre, and the barre is flexibly connected with pressuring diaphragm.With the above structure, advantage is：Construction is simple will not cause claim for eot and construction cost to obviously increase；It can efficiently solve simultaneously and cover the underwater benefit film problem that water depth is more than 0.3 meter or more.
Description
Technical field
The utility model belongs to vacuum method soft foundation processing technical field, is pre- about a kind of vacuum specifically
The underwater double glue of pressure mend film device.
Background technology
Vacuum method is to reinforce the effective ways of Soft Clay Foundation, in the treatment of soft foundation engineering of China's Coastal Areas
It is used widely.Effective sealing of earth's surface diaphragm seal is to obtain necessary condition that is lasting, stablizing vacuum degree, only guaranteed sealing
The sealing of film just can guarantee the effect and quality of vacuum preloading, so the leakproofness of diaphragm seal is vacuum preloading quality control
It is crucial.Vacuum preloading operation has following features：1, vacuum pressure is big：Under-membrance vacuum degree generally reaches 80kPa or more, normal conditions
Under, vacuum preloading is to improve vacuum preloading quality, can be designed to cover water vacuum preloading, i.e., when under-membrance vacuum degree reaches design requirement
Afterwards, it to be covered with certain thickness water on film toward contact, on the one hand increases upper load, on the other hand protects diaphragm seal, prevent
Film because being exposed to the sun, severe cold due to aging rupture；2, suction surface domain is wide：The area of every piece of diaphragm seal is at 20,000 square metres or so；3, when vacuum
Between it is long：Essentially 3 months or so；4, vacuum environment is complicated：Substantially vacuum is to carry out under field conditions (factors), have pedestrian, machinery,
The various external conditions such as weather, geological condition influence, and cause environment to influence big.
Based on the above feature, diaphragm seal rupture gas leakage is unavoidable when vacuum preloading.Once and diaphragm seal ruptures, and will cause
Vacuum preloading fails.Therefore, the patch work of diaphragm seal is extremely important, once finding that diaphragm seal has rupture, should be repaiied in time
It is multiple, to ensure vacuum degree and construction quality.
There are mainly four types of the method for repairing and mending of existing diaphragm seal：
First, not covering water on film, conventional vacuum can be taken to mend membrane technology, be as follows：1, it finds at hole
(under normal conditions, the hole of diaphragm seal is less than 10cm), about 30cm is cut off with blade, while optionally cutting off geotextiles under film,
It is preferably with clay that pit-hole is plain as formed pit-hole because being sucked by vacuum, and repair geotextiles covering；2, by double-layer seal at hole
Film must not have soil pollution and water stain residual respectively with paper handkerchief by its wiped clean；3, two pieces are cut respectively with scissors at least to cover
Hole periphery 20cm circles mend film, and vacuum diaphragm glue special is coated on hole film side and benefit film respectively；4, film difference is mended by two pieces
It mends inside and outside double fenestra holes, overlapping together, air-dries.
Water is covered second is that having on film, need to carry out mending film under water, sluicing method can be taken.This method is：Water whole will be covered in cofferdam
It takes away, leaks out film surface, then press above-mentioned conventional membrane technology of mending and operate, after the completion of repairing, the ascites on diaphragm seal, insufficient again
Place is：A, claim for eot is caused；B, construction cost is high.
Water is covered third, having on film, need to carry out mending film under water, cofferdam method can be taken.This method is：Sand hill is used around hole
Water proof cofferdam has been built with earth bag, cofferdam internal water accumulation has been excluded, has been leaked out at diaphragm seal hole, membrane technology operation is then routinely mended,
Cofferdam is removed after repairing.Disadvantage is that：It is no longer applicable in when a, covering water more than 0.5 meter, the scope of application is small；B, water 0.3- is covered
At 0.5 meter, cofferdam water proof effect is poor, has ponding in cofferdam when mending film, and benefit film quality is caused to be difficult to ensure；3, ability after need to draining
Film is mended, the consequence for being easy to cause the delay duration of a project, improving project cost.
Water is covered fourth, having on film, need to carry out mending film under water, diving method can be taken.This method be send someone to dive into the water shakeout it is soft
Property cloth pad and repairing film, mend film with conventional membrane technology of mending.Disadvantage is that：A, vacuum diaphragm glue special is having regimen condition
Under, 30% or so effect can only be played, it is ineffective to mend film；B, due to there is vacuum suction effect at hole, current scour is aspirated
Under effect, diaphragm seal is difficult to gluing with repairing film；C, winter submarine temperatures are low, therefore diving under water mends film constructional difficulties.
Utility model content
The purpose of this utility model is to provide a kind of vacuum preloading, and double glue mend film devices under water, pre- to solve existing vacuum
The underwater film of mending of pressure needs to mend film after first draining again and mends the problem of film quality is difficult to ensure.
To achieve the above object, the utility model uses following technical scheme：
Double glue mend film devices under water for a kind of vacuum preloading, including pressuring diaphragm, the bottom surface of the pressuring diaphragm are square, both sides point
It is not provided with geometrical clamp, for flexible cloth pad and repairing film to be fixed on pressuring diaphragm, the top of the pressuring diaphragm is equipped with barre,
Hole is lived for membrane pressure will to be repaired, the barre is flexibly connected with pressuring diaphragm.
According to the utility model, the geometrical clamp includes dop, Spring Card spanner, spring and spanner locator, the folder
Mouth is set on pressuring diaphragm, and parallel with pressuring diaphragm, and for clamping repairing film and flexible cloth pad, the dop connects with Spring Card spanner
It connects, the lower section of the Spring Card spanner is formed between the Spring Card spanner and pressuring diaphragm under natural conditions equipped with the spring
One angles β, the spanner locator are equipped with a card slot, and the card slot matches with the Spring Card spanner.When spring is in certainly
When right state, Spring Card spanner drives dop to clamp repairing film and flexible cloth pad under the action of elastic force；When pressing Spring Card is pulled
Hand, and when Spring Card spanner is caught in the card slot of spanner locator, the dop rises, the clamping face formed between pressuring diaphragm
It opens, dop will unclamp repairing film and flexible cloth pad at this time.
Preferably, the angles β are acute angle.
Preferably, the dop is that flute profile fixes dop, convenient for clamping repairing film and flexible cloth pad.
Preferably, the bottom surface of the pressuring diaphragm is square.
Further, the length of side of the pressuring diaphragm is 40cm-60cm, and the pressuring diaphragm uses aluminum alloy material.
Further, a length of 1.5-2.5 meters of the barre, the relatively good pressing pressuring diaphragm of the length.
Preferably, when pressuring diaphragm pushes down diaphragm seal to be repaired, the length of the barre is higher by least 50cm than the water surface,
Pressuring diaphragm is pressed convenient for the staff on pneumatic float.
Further, the top of the pressuring diaphragm is that both sides are low, intermediate high structure, is substantially in cone, pressuring diaphragm it is upper
Side middle part is connected with the barre, makes pressuring diaphragm stress balance, while playing the role of anti-folding.
According to the utility model, the lower section of the pressuring diaphragm is fixed with flexible cloth pad and repairing film, the flexible cloth successively
Pad is consistent with the repairing size of film, the big 10-20cm of the length of side of the side ratio pressuring diaphragm of the flexibility cloth pad and repairing film.
Further, vacuum diaphragm glue special, the lower section surrounding of the repairing film are coated in the middle part of the lower section of the repairing film
It is coated with underwater special seal gum so that underwater special seal gum is enclosed in the outside of vacuum diaphragm glue special, can be effectively isolated
Scrub effect of the water to vacuum diaphragm glue special improves the underwater benefit film effect of vacuum diaphragm glue special.
According to the utility model, the length of side of the flexibility cloth pad and repairing film is bigger 10-20cm than the length of side of pressuring diaphragm respectively.
Before use, first flexible cloth pad and the additional part of repairing film are sandwiched on geometrical clamp, convenient for shakeouing flexible cloth pad and repairing film.
In use, will first repair film and diaphragm seal to be repaired cementing 10 minutes, foot press Spring Card spanner is then used, and Spring Card is pulled
Hand is fixed in the card slot of spanner locator, at this point, the dop of geometrical clamp is in releasing orientation, that is, is repaired film and is in pressuring diaphragm
Discrete state, directly lifts the barre on pressuring diaphragm, and pressuring diaphragm can be kept completely separate with repairing film and flexible cloth pad.
Double glue mend film device to the vacuum preloading of the utility model under water, and advantage is：
1, construction is simple will not cause claim for eot and construction cost to obviously increase；
2, it efficiently solves and covers the underwater benefit film problem that water depth is more than 0.3 meter or more；
3, the lower section surrounding of repairing film is coated with underwater special seal gum, and the inner region of underwater special seal gum is coated with vacuum
Film glue special can both solve worm hole shape water hole between the current scour formation benefit film that benefit film is brought due to vacuum suction under water,
It can be effectively isolated scrub effect of the water to vacuum diaphragm glue special again, improve the underwater benefit film effect of vacuum diaphragm glue special,
It is embodied in：(1) the lower section surrounding of repairing film is coated with underwater special seal gum so that the surrounding for repairing film forms fluid sealant
Circle；(2) the cementing effect of first layer can be played, since diaphragm seal is PVC material, can will be repaiied using underwater special seal gum
It mends film and diaphragm seal to be repaired is cemented together；(3) underwater special seal gum has a cured effect that absorbs water, therefore can be with
The water at middle part below repairing film is absorbed, it is relatively dry at the repairing film to make vacuum diaphragm glue special to be coated, so that it is guaranteed that
The benefit film effect of vacuum diaphragm glue special；(4) setting of underwater special seal gum, can be by the height of diaphragm seal to be repaired not
Flat place filling will not form flow to separate the water of outside；
4, the setting of pressuring diaphragm can be such that repairing film effectively spreads out under water smooth, make underwater sealing film reparation construction more
It is simple and effective.
5, winter can also operate, due to being equipped with for barre and pressuring diaphragm, as long as passing through as underwater staff
Foot, which is stepped on, to open the geometrical clamp on pressuring diaphragm, then wait for it is cementing after ten minutes, repair film and diaphragm seal to be repaired it is cementing
Together, as long as lifting barre, you can separate pressuring diaphragm and repairing film, therefore staff only needs to wear wader and can make
Industry pulls the plug without entire people and shakeouts flexible cloth pad and repairing film, widened the applicability in season；
6, barre is flexibly connected with pressuring diaphragm and has the following advantages that：(1) due to the surface irregularity of subgrade, using activity
The mode of connection is convenient for the place by out-of-flatness around diaphragm seal to flatten；(2) diaphragm seal to be repaired is pushed down convenient for pressuring diaphragm；
(3) underwater operation personnel repairing is not influenced；(4) it is easy to cementing, since vacuum diaphragm glue special is liquid, it is generally the case that
It needs the following table that will repair film face-up, after applying glue, then rotates to lower section, therefore, using flexible connection, can make to repair
The lower surface for mending film is parallel with barre, is convenient for cementing.
Description of the drawings
Fig. 1 is the use state diagram of the pressuring diaphragm of the utility model.
Fig. 2 is the structural schematic diagram that underwater double glue are smeared.
Fig. 3 is that underwater double glue of the utility model mend the schematic diagram of film.
Fig. 4 is the structural schematic diagram of geometrical clamp.
Fig. 5 is the structural schematic diagram of geometrical clamp clamping repairing film and flexible cloth pad.
Specific implementation mode
Below in conjunction with specific attached drawing, to the vacuum preloading of the utility model, double glue are mended film devices and are made further specifically under water
It is bright.
As shown in Figure 1, Figure 4 and Figure 5, it is a kind of vacuum preloading double glue benefit film devices, including press mold under water of the present embodiment
The bottom surface of plate 1, the pressuring diaphragm 1 is square, and both sides are respectively arranged with geometrical clamp 2, for consolidating flexible cloth pad 4 and repairing film 5
It is scheduled on pressuring diaphragm 1, the top of the pressuring diaphragm 1 is equipped with barre 3, and hole 9, institute are pushed down for that will repair film 5 and flexible cloth pad 4
Barre 3 is stated to be flexibly connected with pressuring diaphragm 1.
As shown in Figure 4 and Figure 5, the geometrical clamp 2 includes dop 21, Spring Card spanner 22, spring 23 and spanner locator
24, the dop 21 is set on pressuring diaphragm 1, and parallel with pressuring diaphragm 1, for clamping repairing film 5 and flexible cloth pad 4, the folder
Mouth 21 is connect with Spring Card spanner 22, and the lower section of the Spring Card spanner 22 is equipped with the spring 23, under natural conditions, the bullet
The angles β are formed between spring card spanner 22 and pressuring diaphragm 1, the angles β are preferably acute angle, and the spanner locator 24 is equipped with a card
Slot 25, the card slot 25 match with the Spring Card spanner 22.When spring 23 in the raw when, Spring Card spanner 22 exists
Dop 21 is driven to clamp repairing film 5 and flexible cloth pad 4 under the action of elastic force；When pressing Spring Card spanner 22, and Spring Card is pulled
When hand 22 is caught in the card slot 25 of spanner locator 24, the dop 21 rises, and the clamping face formed between pressuring diaphragm 1 is beaten
It opens, dop 21 will unclamp repairing film 5 and flexible cloth pad 4 at this time.
The dop 21 is preferably that flute profile fixes dop, convenient for clamping repairing film 5 and flexible cloth pad 4.
It should be understood that the other shapes such as rounded, polygon in bottom surface of the pressuring diaphragm 1.It is fixed for the ease of installation
Folder 2, the bottom surface of the pressuring diaphragm 1 is preferably square.
The length of side of the pressuring diaphragm 1 is 40cm-60cm, and the pressuring diaphragm 1 uses aluminum alloy material, the length of the barre 3
It it is 1.5-2.5 meters, the relatively good pressing pressuring diaphragm 1 of the length, the i.e. length of barre 3 is preferably higher by 50cm or more than the water surface, just
Pressuring diaphragm 1 is pressed in the staff on pneumatic float.
The top of the pressuring diaphragm 1 is the structure that both sides are low, centre is high, is substantially in cone, and the upper center of pressuring diaphragm 1 is lived
It is dynamic to be connected with the barre 3, make 1 stress balance of pressuring diaphragm, while playing the role of anti-folding.
The lower section of the pressuring diaphragm 1 is fixed with flexible cloth pad 4 and repairing film 5, the flexibility cloth pad 4 and repairing film 5 successively
Size it is consistent, the big 10-20cm of the length of side of the side ratio pressuring diaphragm 1 of the flexibility cloth pad 4 and repairing film 5.
Vacuum diaphragm glue special 6 is coated in the middle part of the lower section of the repairing film 1, the lower section surrounding of the repairing film 5 is coated with water
Lower special seal gum 7 so that underwater special seal gum 7 is enclosed in the outside of vacuum diaphragm glue special 6, can be effectively isolated water pair
The effect of scrubbing of vacuum diaphragm glue special 6 improves the underwater benefit film effect of vacuum diaphragm glue special 6.
The flexibility cloth pad 4 and the length of side of repairing film 5 are bigger 10-20cm than the length of side of pressuring diaphragm 1 respectively.Before use, first will
Flexible cloth pad 4 and 5 additional part of repairing film sandwich on geometrical clamp 2, convenient for shakeouing flexible cloth pad 4 and repairing film 5.It uses
When, it will first repair film 5 and diaphragm seal to be repaired cementing 10 minutes, then, the staff for wearing wader operation foot press spring
Card spanner 22, and Spring Card spanner 22 is fixed in the card slot 25 of spanner locator 24, at this point, at the dop 21 of geometrical clamp 2
In releasing orientation, that is, repairs film 5 and be in discrete state with pressuring diaphragm 1, directly lift the barre 3 on pressuring diaphragm 1, pressuring diaphragm 1 is just
It can be kept completely separate with repairing film 5 and flexible cloth pad 4.
As shown in Figs. 1-3, for a kind of vacuum preloading of the utility model, double glue mend film methods under water, include the following steps：
Step A, flexible cloth pad 4 and repairing film 5 are shakeout on pressuring diaphragm 1, geometrical clamp 2 is used in combination to fix；
Step B, it is used in combination sand hill 8 to fill hole 9 with towel wiped clean under water at hole 9 and is blocked；
Step C, vacuum diaphragm glue special 6 is coated in the middle part of the lower section of repairing film 5, and is applied in the lower section surrounding of repairing film 5
Upper underwater special seal gum 7 so that underwater special seal gum 7 is enclosed in the outside of vacuum diaphragm glue special 6, can be effectively isolated
Scrub effect of the water to vacuum diaphragm glue special 6 improves the underwater benefit film effect of vacuum diaphragm glue special 6；
Step D, with pressuring diaphragm 1 will repair film 5 be placed in hole 9 at gluing, make under the action of pressuring diaphragm 1 repairing film 5 with
Diaphragm seal to be mended is glued integral.
Step B with sand hill 8 by hole 9 filling block before, further include with the braided fabrics such as woven bag fill hole, with solution
When certainly hole is excessive too deep, the problem of sand hill 8 can not be filled up completely hole 9.
When loosening with worm hole phenomenon occurs in the gluing of step D, the step D further includes with underwater special glue rifle repairing.
The underwater sealing special glue 7 of the present embodiment is paste, has the characteristics that water suction solidification, is set under repairing film 5
Fang Sizhou, it is tentatively cementing for water proof；The vacuum diaphragm glue special 6 of the present embodiment is liquid, is set to the middle part of repairing film 5,
For flexible cementing, cementing good airproof performance.
Embodiment 1
One, 2 × 60MW grades of certain high and new technology industrial development zone Distribution of Natural formula energy source station project, basement process, which uses, covers water vacuum preloading,
1.5 meters of water height is covered, there is the fill stratum close to 4 meters under film, it is contemplated that 1.5 meters of preloading of construction, settling amount is big, causes diaphragm seal
Construction period relative displacement between monitoring pipe is close to 1.5 meters.Pilot hole mode pore-forming, sealing are used when constructing due to drain bar
There are many places hole under film, hole is most of before being laid with diaphragm seal to be handled with back-up sand tamping mode, but still has individual holes
Hole is in vacuum preloading, since vacuum is run, diaphragm seal is inhaled broken.Since broken hole is covering water or less close to 1.5 meters, diaphragm seal is given
Mending tape carrys out difficulty.Through studying repeatedly, handled using underwater double glue encapsulating methods of the present embodiment.Specific embodiment is such as
Under：
--- --- hole pretreatment --- smearing double glue --- is double for flexible cloth pad and the fixation for mending film for the making of pressuring diaphragm
Glue seals.
Detailed step is as follows：
1, the making of pressuring diaphragm 1：Pressuring diaphragm 1 is aluminium alloy, and the both sides setting of 40cm-60cm squares, pressuring diaphragm 1 is fixed
Barre 3 is arranged in the top of folder 2, pressuring diaphragm 1, and barre 3 is about 1.5 meters.
2, the fixation of flexible cloth pad 4 and repairing film 5：Select the flexible cloth pad 4 and repairing film 5 of identical size, and flexible cloth
The length of side of pad 4 and repairing film 5 per side is bigger 10cm than the length of side of pressuring diaphragm 1 respectively, then simultaneously by flexible cloth pad 4 and repairing film 5
It is fixed on the geometrical clamp 2 of pressuring diaphragm 1, and flexible cloth pad 4 and repairing film 5 is shakeout on pressuring diaphragm 1.
3, hole pre-processes：Diving or wader mode operation can be used, if hole 9 is excessive too deep, is blocked in sand hill 8
Before, can hole 9 be filled with braided fabrics such as woven bags in advance.
4, double glue are smeared：Underwater sealing special glue 7 is paste, has the characteristics that water suction solidification, is arranged in the case where repairing film 5
Fang Sizhou, it is tentatively cementing for water proof；Vacuum diaphragm glue special 6 is liquid, is arranged in the middle part of the lower section of repairing film 5, belongs to soft
Cementing, the cementing good airproof performance of property.
5, double glue sealings：It is constructed with modes such as wader, diving, pneumatic floats；With barre 3 hole is pushed down by film 5 is repaired
9, after being compacted repeatedly, geometrical clamp 2 is unclamped, compacting is shakeout by film 5 is repaired with flexible cloth pad 4；Then sand hill is placed on repairing film 5
8 compactings are fixed, and loosening and worm hole phenomenon are checked within 30 minutes, with underwater glue rifle reparation.
Two, treatment effect
1, the project supervises the underwater double glue of project use and mends film methods, in the case where covering 1.5 meters of water, it is unspent into
The repairing and sealing of submersible vacuum film are gone, construction is simple ensure that project progress, it is ensured that construction quality.
2, under normal circumstances, the vacuum degree at hole is 40-50KPa.Vacuum diaphragm glue special 6 is directly used to repair close
Sealer between vacuum degree can reach 70-80KPa, i.e., cannot reach and be fully sealed after tested, slightly can also exist tiny
Hole.
And using the vacuum preloading of the present embodiment, double glue benefit film devices carry out benefit film under water, are repaiied through measuring instrument test hole
Cover sets discovery, and vacuum degree can reach 80KPa or more, i.e., reaches at hole repair and be fully sealed.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made.These improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (7)
1. double glue mend film device to a kind of vacuum preloading under water, which is characterized in that including pressuring diaphragm, the bottom surface of the pressuring diaphragm is in side
Shape, both sides are respectively arranged with geometrical clamp, and the top of the pressuring diaphragm is equipped with barre, and the barre is flexibly connected with pressuring diaphragm,
The geometrical clamp includes dop, Spring Card spanner, spring and spanner locator, and the dop is set on pressuring diaphragm, and with
Pressuring diaphragm is parallel, and the dop is connect with Spring Card spanner, and the lower section of the Spring Card spanner is equipped with the spring, nature
Under, form the angles β between the Spring Card spanner and pressuring diaphragm, the spanner locator is equipped with a card slot, the card slot with
The Spring Card spanner matches.
2. double glue mend film device to vacuum preloading as described in claim 1 under water, which is characterized in that the angles β are acute angle.
3. double glue mend film device to vacuum preloading as described in claim 1 under water, which is characterized in that the dop is fixed for flute profile
Dop.
4. double glue mend film devices to vacuum preloading as described in claim 1 under water, which is characterized in that the length of side of the pressuring diaphragm is
40cm-60cm, the pressuring diaphragm use aluminum alloy material.
5. double glue mend film device to vacuum preloading as described in claim 1 under water, which is characterized in that a length of 1.5- of the barre
2.5 rice.
6. double glue mend film devices to vacuum preloading as described in claim 1 under water, which is characterized in that when pressuring diaphragm push down it is to be repaired
Diaphragm seal when, the length of the barre is at least higher by 50cm than the water surface.
7. double glue mend film device to vacuum preloading as described in claim 1 under water, which is characterized in that the top of the pressuring diaphragm is
The structure that both sides are low, centre is high, is substantially in cone, and the upper center of pressuring diaphragm is connected with the barre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820186092.0U CN208009401U (en) | 2018-02-02 | 2018-02-02 | Double glue mend film devices under water for a kind of vacuum preloading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820186092.0U CN208009401U (en) | 2018-02-02 | 2018-02-02 | Double glue mend film devices under water for a kind of vacuum preloading |
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| CN208009401U true CN208009401U (en) | 2018-10-26 |
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ID=63885843
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108221949A (en) * | 2018-02-02 | 2018-06-29 | 上海港湾基础建设（集团）股份有限公司 | Double glue mend film device and method to a kind of vacuum preloading under water |
-
2018
- 2018-02-02 CN CN201820186092.0U patent/CN208009401U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108221949A (en) * | 2018-02-02 | 2018-06-29 | 上海港湾基础建设（集团）股份有限公司 | Double glue mend film device and method to a kind of vacuum preloading under water |
| CN108221949B (en) * | 2018-02-02 | 2023-12-19 | 上海港湾基础建设（集团）股份有限公司 | Vacuum pre-pressing underwater double-adhesive film supplementing device and method |
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