CN202401399U - Anchor head sealing device for prestressed pipeline mud jacking - Google Patents
Anchor head sealing device for prestressed pipeline mud jacking Download PDFInfo
- Publication number
- CN202401399U CN202401399U CN2011205400411U CN201120540041U CN202401399U CN 202401399 U CN202401399 U CN 202401399U CN 2011205400411 U CN2011205400411 U CN 2011205400411U CN 201120540041 U CN201120540041 U CN 201120540041U CN 202401399 U CN202401399 U CN 202401399U
- Authority
- CN
- China
- Prior art keywords
- anchor
- mud jacking
- sealing
- sealing device
- anchor head
- 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 - Lifetime
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses an anchor head sealing device for prestressed pipeline mud jacking, which comprises an anchor sealing cover, an anchor and an anchor backing plate, wherein the anchor and the anchor backing plate are fixedly connected to ends of a prestressed pipeline, and the anchor sealing cover is arranged on the anchor and is connected to the anchor backing plate through fasteners. The anchor head sealing device for prestressed pipeline mud jacking has the advantages of simple and compact structure, low cost, convenience in mounting and capability of guaranteeing sealing effect for long time and the like.
Description
Technical field
The utility model is mainly concerned with prestress pipe mud jacking apparatus field, the anchor head sealing device of using when refering in particular to a kind of mud jacking.
Background technology
Post-tensioned prestressing pipeline mud jacking construction is the critical process of prestressing force bridge construction, concerns Structure Safety for Bridge property and durability, the generation of a large amount of prestressing force bridge collapse accidents often with the mud jacking leakiness, that steel strand shift to an earlier date corrosion is relevant.Prestress pipe mud jacking leakiness makes that on the one hand the steel strand in the pipeline are not wrapped up by cement paste, corrosion in advance easily; Make prestress wire not form whole stressedly on the other hand, reduced structure bearing capacity, shortened the application life of bridge with concrete structure.
At present, traditional mud jacking mode mainly contains two kinds: a kind of is common grouting, and another kind is a vacuum aid grouting.
The sealing off and covering anchorage mode that these two kinds of mud jacking modes adopt all is with light water mud anchor head to be sealed, and mainly there is the defective of following two aspects in this sealing mode:
A, anchor head position only can not seal with cement paste fully, often have gas leakage, infiltration phenomenon, and slurries ooze out from the anchor head position when hole flushing or mud jacking, cause the waste of slurries and the pollution of site environment.
B, bridge technology code requirement strengthen the protection to the prestressing force anchor head, only carry out sealing off and covering anchorage with cement paste, and when the grouting pressurization, the anchor head concrete is very likely broken by impact, cause the anchor head spillage and can not pressurize, and also are unfavorable for the corrosion protection to anchor head simultaneously.
The utility model content
The technical problem that the utility model will solve just is: to the technical problem that prior art exists, the utility model provide a kind of simple and compact for structure, with low cost, easy for installation, can guarantee for a long time that the prestress pipe mud jacking of sealing effectiveness uses the anchor head sealing device.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of prestress pipe mud jacking is used the anchor head sealing device, the ground tackle and the anchor plate that comprise the sealing off and covering anchorage cover and be fixed in the prestress pipe end, and said sealing off and covering anchorage covers on the ground tackle and through securing member and is connected on the anchor plate.
Further improvement as the utility model:
Be provided with the high resiliency pad between said anchor plate and the sealing off and covering anchorage cover.
Offer on the said anchor plate and be used for chewing the stock inlet that is communicated with mud jacking, the position corresponding with stock inlet is provided with and dodges notch part on the said high resiliency pad.
Compared with prior art, the advantage of the utility model is:
1, the utility model is simple and compact for structure, with low cost, easy for installation, and ground tackle is sheathed in the sealing off and covering anchorage cover and fills up cement paste, has guaranteed that whole sealing device seals fully, does not seep water, air tight, also ground tackle long-term antirust is had protective effect; Be connected through securing member between anchor plate and the sealing off and covering anchorage cover simultaneously, slurries are to the impact force of ground tackle in the time of can resisting grouting, and concrete breaking on the ground tackle avoided in not pressure release in the time of when mud jacking, can avoiding gas leakage, infiltration and pressurization.
2, the utility model further is provided with the high resiliency pad between anchor plate and sealing off and covering anchorage cover, has further guaranteed the sealing effectiveness between sealing off and covering anchorage cover and the anchor plate.
Description of drawings
Fig. 1 is the structural representation of the utility model in application example.
Fig. 2 is the structural representation of sealing off and covering anchorage cover in the utility model.
Fig. 3 is the structural representation of ground tackle in the utility model.
Fig. 4 is the structural representation of anchor plate in the utility model.
Fig. 5 is the structural representation of high resiliency pad in the utility model.
Marginal data
1, prestress pipe; 2, ground tackle; 3, anchor plate; 301, stock inlet; 4, sealing off and covering anchorage cover; 5, high resiliency pad; 501, dodge notch part; 6, mud jacking is chewed; 7, steel strand.
The specific embodiment
Below will combine Figure of description and specific embodiment that the utility model is explained further details.
Like Fig. 1～shown in Figure 5, the prestress pipe mud jacking of the utility model is used the anchor head sealing device, the ground tackle 2 and anchor plate 3 that comprise sealing off and covering anchorage cover 4 and be fixed in prestress pipe 1 end, and sealing off and covering anchorage cover 4 is located on the ground tackle 2 and through securing member and is connected on the anchor plate 3.Wherein, offer through hole on the ground tackle 2, the steel strand 7 in the confession prestress pipe 1 pass and connect; Sealing off and covering anchorage cover 4 is located at the outside of ground tackle 2, fills cement paste then and accomplishes sealing off and covering anchorage; Anchor plate 3 directly is fixed on the end of prestress pipe 1, and the end of sealing off and covering anchorage cover 4 links together through securing members such as bolt and anchor plate 3.The utility model is through filling up cement paste in sealing off and covering anchorage cover 4, guaranteed that cement pastes are full of in the sealing off and covering anchorage cover 4, and whole sealing device seals fully, do not seep water, air tight, also ground tackle 2 long-term antirust had protective effect; Be connected through securing member between anchor plate 3 and the sealing off and covering anchorage cover 4 simultaneously, slurries are to the impact force of ground tackle 2 in the time of can resisting grouting, and concrete breaking on the ground tackle 2 avoided in not pressure release in the time of when mud jacking, can avoiding gas leakage, infiltration and pressurization; Further,, grouting also is beneficial to long-term protection after accomplishing to ground tackle 2.
In the present embodiment, between anchor plate 3 and sealing off and covering anchorage cover 4, be provided with high resiliency pad 5, further guaranteed the sealing effectiveness between sealing off and covering anchorage cover 4 and the anchor plate 3.Offer on the anchor plate 3 and be used for chewing 6 stock inlets 301 that are communicated with, be provided with stock inlet 301 corresponding positions on the high resiliency pad 5 and dodge notch part 501 with mud jacking.High resiliency pad 5 also can be fixed on anchor plate 3 through glue special.
Below only be the preferred implementation of the utility model, the protection domain of the utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to the protection domain of the utility model.Should be pointed out that for those skilled in the art,, should be regarded as the protection domain of the utility model in the some improvement and the retouching that do not break away under the utility model principle prerequisite.
Claims (3)
1. a prestress pipe mud jacking is used the anchor head sealing device; It is characterized in that: the ground tackle (2) and the anchor plate (3) that comprise sealing off and covering anchorage cover (4) and be fixed in prestress pipe (1) end, said sealing off and covering anchorage cover (4) are located at ground tackle (2) and are gone up and be connected on the anchor plate (3) through securing member.
2. prestress pipe mud jacking according to claim 1 is used the anchor head sealing device, it is characterized in that: be provided with high resiliency pad (5) between said anchor plate (3) and the sealing off and covering anchorage cover (4).
3. prestress pipe mud jacking according to claim 2 is used the anchor head sealing device; It is characterized in that: offer on the said anchor plate (3) and be used for chewing with mud jacking the stock inlet (301) that (6) are communicated with, said high resiliency pad (5) is gone up to be provided with the corresponding position of stock inlet (301) and is dodged notch part (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205400411U CN202401399U (en) | 2011-12-21 | 2011-12-21 | Anchor head sealing device for prestressed pipeline mud jacking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205400411U CN202401399U (en) | 2011-12-21 | 2011-12-21 | Anchor head sealing device for prestressed pipeline mud jacking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202401399U true CN202401399U (en) | 2012-08-29 |
Family
ID=46699053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205400411U Expired - Lifetime CN202401399U (en) | 2011-12-21 | 2011-12-21 | Anchor head sealing device for prestressed pipeline mud jacking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202401399U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452051A (en) * | 2013-09-23 | 2013-12-18 | 甘肃路桥建设集团有限公司 | Bridge grouting anchor head sealing method |
| CN107675888A (en) * | 2017-09-22 | 2018-02-09 | 中国建筑土木建设有限公司 | Circulate mud jacking system and its circulation mud jacking method |
| CN108071111A (en) * | 2016-11-17 | 2018-05-25 | 中铁西北科学研究院有限公司深圳南方分院 | The anchor head anti-corrosion method of anchorage cable engineering |
| CN111335165A (en) * | 2020-03-04 | 2020-06-26 | 中铁第四勘察设计院集团有限公司 | Construction method for sealing anchor and auxiliary anchor sealing structure thereof |
-
2011
- 2011-12-21 CN CN2011205400411U patent/CN202401399U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452051A (en) * | 2013-09-23 | 2013-12-18 | 甘肃路桥建设集团有限公司 | Bridge grouting anchor head sealing method |
| CN103452051B (en) * | 2013-09-23 | 2016-06-29 | 甘肃路桥建设集团有限公司 | Bridge mud jacking anchor head encapsulating method |
| CN108071111A (en) * | 2016-11-17 | 2018-05-25 | 中铁西北科学研究院有限公司深圳南方分院 | The anchor head anti-corrosion method of anchorage cable engineering |
| CN107675888A (en) * | 2017-09-22 | 2018-02-09 | 中国建筑土木建设有限公司 | Circulate mud jacking system and its circulation mud jacking method |
| CN111335165A (en) * | 2020-03-04 | 2020-06-26 | 中铁第四勘察设计院集团有限公司 | Construction method for sealing anchor and auxiliary anchor sealing structure thereof |
| CN111335165B (en) * | 2020-03-04 | 2021-11-16 | 中铁第四勘察设计院集团有限公司 | Construction method for sealing anchor and auxiliary anchor sealing structure thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202401399U (en) | Anchor head sealing device for prestressed pipeline mud jacking | |
| CN101372840B (en) | Mounting method with detachable rubber water stop mounted inside | |
| CN101956388B (en) | Novel clamp device and fixing method for grouting risers of ocean platform | |
| CN202293023U (en) | Grouting and sealing cover of post-tensioned prestressing pipeline | |
| CN106812253A (en) | A kind of prestressing without bondn anchorage corrosion protection structure | |
| CN103967521A (en) | Pre-buried channel assembly for shield tunnel | |
| CN203130153U (en) | Embedded channel assembly used for shield tunnel | |
| CN201459723U (en) | Spring-back detachable anchor cable | |
| CN218386642U (en) | Wall-penetrating waterproof structure of cable well | |
| CN201292528Y (en) | Grouting machine | |
| CN202369997U (en) | Flexible bag type anti-corrosive pile | |
| CN202881983U (en) | Ahead water-stopping rubber water-stopping belt fixing system | |
| CN203393616U (en) | Shrinkage-free cement mortar sealing anchor head applied to water conservancy box beam | |
| CN203248388U (en) | Pump shaft of sewage pump | |
| CN205171836U (en) | Prestressing without bondn ground tackle anticorrosion structure | |
| CN202081580U (en) | Anti-corrosion anchor device with unbonded tendons | |
| CN2305449Y (en) | Prestress anchor | |
| CN203174644U (en) | Leakage preventing device for underground passage construction joints | |
| CN202359502U (en) | Hydraulic through-type jacking device for lifting jack | |
| CN202007399U (en) | Flap gate with operating bridges | |
| CN2604463Y (en) | Waterproof external anchoring end | |
| CN201907949U (en) | Prestressed tensioning jack for highway and railway bridges | |
| CN206358679U (en) | A kind of low pressure vessel leak stopping structure | |
| CN203363434U (en) | Water pipe for discharging underground sewage | |
| CN200988965Y (en) | External anchoring end slurry stopping device for multiple anchor head no-adhesive prestress anchor cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Anchor head sealing device for prestressed pipeline mud jacking Effective date of registration: 20150925 Granted publication date: 20120829 Pledgee: Bank of Beijing Limited by Share Ltd Changsha branch Pledgor: Hunan Lianzhi Bridge and Tunnel Technology Co.,Ltd. Registration number: 2015430000024 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170113 Granted publication date: 20120829 Pledgee: Bank of Beijing Limited by Share Ltd Changsha branch Pledgor: Hunan Lianzhi Bridge and Tunnel Technology Co.,Ltd. Registration number: 2015430000024 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CP03 | Change of name, title or address |
Address after: No.168, Section 2, Yanhe Road, Wangcheng economic and Technological Development Zone, Changsha City, Hunan Province Patentee after: Hunan Lianzhi Technology Co.,Ltd. Address before: 410015 19th Floor, 469 News Building, Furong Road Section, Changsha City, Hunan Province Patentee before: HUNAN LIANZHI BRIDGE AND TUNNEL TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
|
| CX01 | Expiry of patent term |