CN1287202A - Vacuum grouting process and its sealed anchor cable - Google Patents
Vacuum grouting process and its sealed anchor cable Download PDFInfo
- Publication number
- CN1287202A CN1287202A CN 99118694 CN99118694A CN1287202A CN 1287202 A CN1287202 A CN 1287202A CN 99118694 CN99118694 CN 99118694 CN 99118694 A CN99118694 A CN 99118694A CN 1287202 A CN1287202 A CN 1287202A
- Authority
- CN
- China
- Prior art keywords
- anchor
- cable
- vacuum
- grouting
- sealed
- 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.)
- Pending
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The vacuum grouting process includes the steps of installing built-in fitting, installing sealed anchor cable, installing vacuum pump and grouting pump, vacuum pumping, vacuum grouting, anchor head preservation, sealing treatment, etc. The sealed anchor cable consists of two parts, one backstay cable and one anchor tackle, the anchor tackle includes clamping plate, anchor board, anchor spacer, spiral rib and protecting hood; and the cable is formed by steel cable clamped by the clamping plate and the anchor board, the anchor spacer and corrugated plastic pipe for the steel cable to pass through. The tail part of the anchor spacer is sleeve jointed with the corrugated plastic pipe and the joint between the protecting hood in the anchor head and the anchor spacer is sealed and adhered with epoxy resin. The method has high grouting quality and ensure cable preservation.
Description
The present invention relates to a kind of grouting method and and the supporting anchor cable of this method of construction prestressed cable.
Along with prestressing technique development; the posttension system has obtained extensive utilization, and grouting becomes the crucial barrier of presstressed reinforcing steel corrosion-resistant, as crucial one topping of corrosion-resistant; guaranteeing to play a part aspect the general safety of bridge very important, need guarantee its quality requirement.Traditional anchor cable is the non-tight formula, adopting metal bellows is the pore-forming pipeline, traditional grouting way is: use grouting machine concrete to be poured in the metal bellows of anchor cable by the anchor plate grout hole after cable body stretch-draw finishes, flow in the rope by fluidity of slurry and the deadweight of itself, owing to reasons such as fluidity of slurry and each composition proportion difference itself and air, problems such as the segregation of easy generation cement paste, bleed, bubble, stiff after-contraction in the construction; Grouting finishes after slurry solidifies, because the hole that bleed, bubble produce causes insufficient strength between slurry and cable body, it is bad to bond, the back infiltration if outer concrete block ftractures for some reason, the metal bellows of anchor cable is by corrosion, and the grouting way of conventional grout construction makes to retain inevitably in the concrete in addition has hole, the harmful water that is detained in the hole etc. will cause the steel strand fracture that is corroded, and rope generally can't be changed in the body, can cause workmanship like this to have a strong impact on.
The object of the present invention is to provide and a kind ofly can guarantee grouting quality,, the vacuum grouting process and the special-purpose sealed anchor cable thereof that make it prolong cable body life-span anticorrosion better cable body.
For reaching above-mentioned purpose, the concrete technology of vacuum grouting process of the present invention is:
1) built-in fitting is installed: pre-buried anchor plate, spiral bar and bellows;
2) sealed anchor cable is installed: steel strand are passed built-in fitting-anchor plate, bellows formation cable body by intermediate plate wedging anchor slab, and stretch-draw finishes, and cuts protective cover on the unnecessary steel strand back cover;
3) vacuum pump, grout pump are installed: an end anchor plate is connected the pipe of band control valve and air filter, and as vacuumizing vacuum pump on the termination, other end anchor plate screw only connects with the pipe of control valve, connects grout pump;
4) forvacuum: at first start vacuum pump and vacuumize;
5) vacuum grouting: in the anchor cable to be sealed vacuum reach O.1 ± start grout pump grouting behind the 0.01MPa, vacuum pump works on; When in the air filter slurries being arranged, close vacuum pump, continue grouting 1～2 minute; After extremely slurry is filled, unload vacuum pump and grout pump;
6) the anticorrosion and encapsulation process of anchor head: in the protective cover of two ends, pour into anticorrosion grease or cement mortar, and add sealing ring sealing grout hole and steam vent with bolt.
With the matching used sealed anchor cable of vacuum grouting process of the present invention; still by drag-line; ground tackle two parts are formed; drag-line partly comprises cable body; built-in fitting etc.; ground tackle partly comprises intermediate plate; anchor slab; anchor plate; spiral bar and protective cover; steel strand pass built-in fitting-anchor plate by intermediate plate and anchor slab wedging; bellows forms cable body; be with existing anchor cable difference: described bellows is a plastic film capicitor; anchor plate afterbody and plastic film capicitor socket and sealing; anchor head partly is equipped with protective cover, and protective cover seals fully with the anchor plate contact position all around and constitutes hermetically sealed anchor cable with the epoxy glue bonding.
Adopt this kind vacuum grouting process, before grouting, 90% air is drawn out of, thereby speed of application can improve 10%, and slurry is closely knit in the cable body, has guaranteed grouting quality.
Plant the matching used sealed anchor cable of vacuum grouting process therewith; adopt favorable sealing property, be that the plastic film capicitor that material is made is the pore-forming pipeline with corrosion resistant HDPE; anchor plate afterbody and plastic film capicitor socket; anchor head partly is equipped with protective cover, and protective cover seals fully with the anchor plate contact position all around and bonds with epoxy glue, and whole anchor cable is in whole sealing status; thereby; do not have outside steam and infiltrate, guarantee the steel strand fracture that is not corroded, prolonged the application life of cable body.
Below, in conjunction with the accompanying drawings and embodiments, the present invention's the vacuum grouting process and the technical characterictic of special-purpose sealed anchor cable are further described.
Fig. 1: vacuum grouting process process chart of the present invention;
Fig. 2: sealed anchor cable structure of the present invention and scheme of installation.
Embodiment:
As shown in Figure 2; the sealed anchor cable that vacuum grouting process of the present invention is used; by drag-line; ground tackle two parts are formed; drag-line partly comprises cable body; built-in fitting etc.; ground tackle partly comprises intermediate plate 11; anchor slab 12; anchor plate 4; spiral bar 5 and protective cover 2; steel strand pass built-in fitting-anchor plate 4 by intermediate plate 11 and anchor slab 12 wedgings; bellows 6 forms cable body; described bellows 6 is a plastic film capicitor; anchor plate 4 afterbodys and plastic film capicitor 6 sockets and sealing; anchor head partly is equipped with protective cover 2; protective cover 2 seals fully with anchor plate 4 contact positions all around and bonds with epoxy glue; grout hole and steam vent are arranged on the protective cover 2; after anchor cable grouting finished, the protective cover planted agent filled with anticorrosion grease or cement mortar, and adopted bolt to add the form of sealing ring sealing with grout hole and steam vent sealing.
Described plastic film capicitor 6 pipe thicknesses are 5～10mm, diameter D=φ 30～400mm.
Vacuum grouting process activities following (referring to Fig. 1, Fig. 2):
1) built-in fitting is installed: pre-buried anchor plate 4, spiral bar 5 and bellows 6;
2) sealed anchor cable is installed: steel strand 7 are passed built-in fitting-anchor plate 4, bellows 6 formation cable bodies by intermediate plate 11 wedging anchor slabs 12, and stretch-draw finishes, and cuts protective cover 2 on the unnecessary steel strand back cover;
3) vacuum pump 1, grout pump 10 are installed: an end anchor plate screw is connected the pipe 3 of band control valve and air filter, and as vacuumizing vacuum pump 1 on the termination, other end anchor plate screw only connects with the pipe 9 of control valve, connects grout pump 10;
4) forvacuum: start vacuum pump 1 and vacuumize;
5) vacuum grouting: vacuum starts grout pump 10 grouting after reaching 0.1 ± 0.01MPa in the anchor cable to be sealed, vacuum pump 1 works on; When in the air filter slurries being arranged, close vacuum pump 1, continue grouting 1～2 minute; After extremely slurry is filled, unload vacuum pump 1 and grout pump 10;
6) the anticorrosion and encapsulation process of anchor head: in two ends protective cover 2, pour into anticorrosion grease or cement mortar, and add sealing ring sealing grout hole and steam vent with bolt.
Claims (3)
1, a kind of vacuum grouting process is characterized in that: this method may further comprise the steps:
1) built-in fitting is installed: pre-buried anchor plate (4), spiral bar (5) and bellows (6);
2) sealed anchor cable is installed: steel strand (7) are passed built-in fitting-anchor plate (4), bellows (6) formation cable body by intermediate plate (11) wedging anchor slab (12), and stretch-draw finishes, and cuts protective cover (2) on the unnecessary steel strand back cover;
3) vacuum pump (1), grout pump (10) are installed: an end anchor plate is connected the pipe (3) of band control valve and air filter as vacuumizing end, connect vacuum pump (1), other end anchor plate screw only connects with the pipe (9) of control valve, connects grout pump (10);
4) forvacuum: start vacuum pump (1) and vacuumize;
5) vacuum grouting: in the anchor cable to be sealed vacuum reach O.1 ± O.01MPa the back starts grout pump (10) grouting, vacuum pump (1) works on; When in the air filter slurries being arranged, close vacuum pump (1), continue grouting 1～2 minute; After extremely slurry is filled, unload vacuum pump (1) and grout pump (10);
6) the anticorrosion and encapsulation process of anchor head: in two ends protective cover (2), pour into anticorrosion grease or cement mortar, and add sealing ring sealing grout hole and steam vent with bolt.
2; the sealed anchor cable that vacuum grouting process as claimed in claim 1 is used; by drag-line; ground tackle two parts are formed; drag-line partly comprises cable body; built-in fitting; ground tackle partly comprises intermediate plate (11); anchor slab (12); anchor plate (4); spiral bar (5) and protective cover (2); steel strand (7) pass built-in fitting anchor plate (4) by intermediate plate (11) and anchor slab (12) wedging; bellows (6) forms cable body; it is characterized in that: described bellows (6) is a plastic film capicitor; anchor plate (4) afterbody and plastic film capicitor (6) socket and sealing; the two ends anchor head partly is equipped with protective cover (2), and protective cover (2) seals fully with anchor plate (4) contact position all around and bonds with epoxy glue.
3, the used sealed anchor cable of vacuum grouting process as claimed in claim 2 is characterized in that: described plastic film capicitor (6) pipe thickness is 5～10mm, diameter D=φ 30～400mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99118694 CN1287202A (en) | 1999-09-03 | 1999-09-03 | Vacuum grouting process and its sealed anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99118694 CN1287202A (en) | 1999-09-03 | 1999-09-03 | Vacuum grouting process and its sealed anchor cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1287202A true CN1287202A (en) | 2001-03-14 |
Family
ID=5280523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99118694 Pending CN1287202A (en) | 1999-09-03 | 1999-09-03 | Vacuum grouting process and its sealed anchor cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1287202A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793095A (en) * | 2010-03-19 | 2010-08-04 | 北京交通大学 | Rubber pulling rod device of prestressed pore channel of forming band bealock |
| CN101818567A (en) * | 2010-04-01 | 2010-09-01 | 北京交通大学 | Rubber bar pore-forming device for enlarging prestressed aperture of cross section |
| CN101818547A (en) * | 2010-04-09 | 2010-09-01 | 北京交通大学 | Corrugated pipe pore-forming device for enlarging prestressed aperture of cross section |
| CN101927528A (en) * | 2010-07-30 | 2010-12-29 | 中铁四局集团第一工程有限公司 | Vacuum grouting construction equipment and method |
| CN101974960A (en) * | 2010-11-03 | 2011-02-16 | 杭州神列锻压件有限公司 | Pre-stressed anchor backing plate |
| CN102704404A (en) * | 2012-06-15 | 2012-10-03 | 威胜利工程有限公司 | Vacuum assisted pressing injection technology for anchorage zone and device using technology |
| CN102817370A (en) * | 2012-08-13 | 2012-12-12 | 中国矿业大学 | Positive pressure and negative pressure combined grouting method |
| CN102939420A (en) * | 2010-03-26 | 2013-02-20 | Vsl国际股份公司 | Sealing arrangement |
| 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 |
| CN104480935A (en) * | 2014-11-18 | 2015-04-01 | 中国电建集团成都勘测设计研究院有限公司 | Anchorage pier structure suitable for surrounding rock deformation |
| CN104763105A (en) * | 2015-04-17 | 2015-07-08 | 柳州市桥厦工程管材有限公司 | Prestressed plastic corrugated pipe with anchor bearing plate inserting opening |
| CN106286240A (en) * | 2016-10-15 | 2017-01-04 | 中国铁道科学研究院铁道建筑研究所 | A kind of single-ended automatic vacuum of prestress pipe and mud jacking system and technique thereof |
| CN106939701A (en) * | 2017-02-08 | 2017-07-11 | 中交第二航务工程局有限公司 | The pre-buried pipeline sealing off and covering anchorage construction method of back-off anchor recess |
| CN106939700A (en) * | 2017-02-08 | 2017-07-11 | 中交第二航务工程局有限公司 | The vacuum aided sealing off and covering anchorage construction method of back-off anchor recess |
| 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 |
| CN108252521A (en) * | 2018-01-22 | 2018-07-06 | 中国建筑科学研究院建筑机械化研究分院 | Vacuum negative pressure type grouting method and system |
| WO2022052438A1 (en) * | 2020-09-09 | 2022-03-17 | 中国五冶集团有限公司 | End plugging device for pre-stressed pipeline press-grouting |
-
1999
- 1999-09-03 CN CN 99118694 patent/CN1287202A/en active Pending
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793095B (en) * | 2010-03-19 | 2012-07-11 | 北京交通大学 | Rubber pulling rod device of prestressed pore channel of forming band bealock |
| CN101793095A (en) * | 2010-03-19 | 2010-08-04 | 北京交通大学 | Rubber pulling rod device of prestressed pore channel of forming band bealock |
| CN102939420A (en) * | 2010-03-26 | 2013-02-20 | Vsl国际股份公司 | Sealing arrangement |
| CN102939420B (en) * | 2010-03-26 | 2016-06-08 | Vsl国际股份公司 | Sealing device |
| CN101818567A (en) * | 2010-04-01 | 2010-09-01 | 北京交通大学 | Rubber bar pore-forming device for enlarging prestressed aperture of cross section |
| CN101818547A (en) * | 2010-04-09 | 2010-09-01 | 北京交通大学 | Corrugated pipe pore-forming device for enlarging prestressed aperture of cross section |
| CN101927528A (en) * | 2010-07-30 | 2010-12-29 | 中铁四局集团第一工程有限公司 | Vacuum grouting construction equipment and method |
| CN101974960A (en) * | 2010-11-03 | 2011-02-16 | 杭州神列锻压件有限公司 | Pre-stressed anchor backing plate |
| CN102704404A (en) * | 2012-06-15 | 2012-10-03 | 威胜利工程有限公司 | Vacuum assisted pressing injection technology for anchorage zone and device using technology |
| CN102704404B (en) * | 2012-06-15 | 2014-06-18 | 威胜利工程有限公司 | Vacuum assisted pressing injection technology for anchorage zone and device using technology |
| CN102817370A (en) * | 2012-08-13 | 2012-12-12 | 中国矿业大学 | Positive pressure and negative pressure combined grouting method |
| 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 |
| CN104480935A (en) * | 2014-11-18 | 2015-04-01 | 中国电建集团成都勘测设计研究院有限公司 | Anchorage pier structure suitable for surrounding rock deformation |
| CN104480935B (en) * | 2014-11-18 | 2017-01-18 | 中国电建集团成都勘测设计研究院有限公司 | Anchorage pier structure suitable for surrounding rock deformation |
| CN104763105A (en) * | 2015-04-17 | 2015-07-08 | 柳州市桥厦工程管材有限公司 | Prestressed plastic corrugated pipe with anchor bearing plate inserting opening |
| CN106286240A (en) * | 2016-10-15 | 2017-01-04 | 中国铁道科学研究院铁道建筑研究所 | A kind of single-ended automatic vacuum of prestress pipe and mud jacking system and technique thereof |
| CN106286240B (en) * | 2016-10-15 | 2018-07-03 | 中国铁道科学研究院铁道建筑研究所 | A kind of single-ended automatic vacuum of prestress pipe and mud jacking system and its technique |
| 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 |
| CN106939701A (en) * | 2017-02-08 | 2017-07-11 | 中交第二航务工程局有限公司 | The pre-buried pipeline sealing off and covering anchorage construction method of back-off anchor recess |
| CN106939700A (en) * | 2017-02-08 | 2017-07-11 | 中交第二航务工程局有限公司 | The vacuum aided sealing off and covering anchorage construction method of back-off anchor recess |
| CN106939700B (en) * | 2017-02-08 | 2019-01-25 | 中交第二航务工程局有限公司 | It is buckled to the vacuum aided sealing off and covering anchorage construction method of anchor recess |
| CN108252521A (en) * | 2018-01-22 | 2018-07-06 | 中国建筑科学研究院建筑机械化研究分院 | Vacuum negative pressure type grouting method and system |
| WO2022052438A1 (en) * | 2020-09-09 | 2022-03-17 | 中国五冶集团有限公司 | End plugging device for pre-stressed pipeline press-grouting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1287202A (en) | Vacuum grouting process and its sealed anchor cable | |
| CN107893415B (en) | A kind of corrosion-resistant miniature steel pipe pile and manufacturing method | |
| CN104372738B (en) | Rope constructional method is changed in a kind of single replaceable anchor heavy stone used as an anchor prestress anchoraging device and installation thereof | |
| CN102504670A (en) | Permeable epoxy resin waterproof coating for concrete | |
| CN208981531U (en) | A kind of prefabricated assembled parapet connection structure | |
| CN213709144U (en) | Bridge pier structure | |
| CN202302361U (en) | Cement mortar ceramic inner liner composite cast iron pipe | |
| CN107721246B (en) | FRP reinforced prestressed steel cylinder concrete pressure pipeline manufacturing process | |
| CN108193709A (en) | Underground pipe gallery and underground pipe gallery crack anti-seepage water treatment method | |
| CN105862574A (en) | Glass fiber reinforced plastic pier for bridge | |
| CN1018573B (en) | Method for quick and easy repairing burst of submerged steel pipe | |
| CN2389176Y (en) | Sealed anchorage cable | |
| CN105697922B (en) | A kind of construction method of the antiseepage corrosion-resistant sewage pipeline section of jurisdiction liner based on shield method | |
| CN105179817B (en) | Long-life full corrosion-resistant lined Prestressed concrete cylinder pipe | |
| CN210508385U (en) | Shear force wall bushing reinforced structure | |
| CN209178825U (en) | A kind of anticorrosion structure of suspension cable anchor head steel strand wires | |
| CN2934358Y (en) | Anticorrosion anchor rod with utricle | |
| CN205894070U (en) | A corrosion -resistant prefabricated grouted rock bolt for strongly -corrosive environment | |
| CN2594356Y (en) | Sustained adhering prestressed bars | |
| CN209099387U (en) | Basis is built in a kind of novel anti-corrosion room | |
| CN1900438A (en) | Construction body for repairing underground building cracks and its method | |
| CN106287008A (en) | A kind of long-effective corrosion etching method of embed-type Prestressed concrete cylinder pipe | |
| CN212131589U (en) | Water stopping device for jacking pipeline | |
| CN210828068U (en) | High-order grout sleeve | |
| KR100686964B1 (en) | Encasement method for repairing or reinforcing structures in the water and a repairing or reinforcing member used therein |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |