CN101435269B - Prestress pipe anti-blocking method - Google Patents
Prestress pipe anti-blocking method Download PDFInfo
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- CN101435269B CN101435269B CN2008101479357A CN200810147935A CN101435269B CN 101435269 B CN101435269 B CN 101435269B CN 2008101479357 A CN2008101479357 A CN 2008101479357A CN 200810147935 A CN200810147935 A CN 200810147935A CN 101435269 B CN101435269 B CN 101435269B
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Abstract
The invention discloses a prestressed pipeline anti-blocking method, which comprises the following steps: the first step, a single steel twisted wire is adopted as a lead wire to penetrate the pipeline after the prestressed pipeline is mounted; the second step, the lead wire leads a water bas to a water bag penetrating prestressed pipeline; the third step, the two ends of the water bag are mounted with valves, and the water bag is filled with high pressure water; the fourth step, the valves at the two ends of the water bag are closed after the high pressure water is full; and the fifth step, concrete is poured, and the water in the water bag is pumped out after the concrete is poured and solidified, then the water bag is pulled out, and the prestressed pipeline is cleared to guarantee the pipeline unblocked. The method has good anti-blocking function and effect to long distance prestressed pipeline, low cost, and convenient construction.
Description
Technical field
The present invention relates to the realm of building construction, especially a kind of prestress pipe anti-blocking method.
Background technology
In Post-tension Prestress Construction, the anti-blocking main employing polyethylene pipe of bellows (mainly refer to here when concreting not the bellows of steel strand bundle) is as stay tube in it, polyethylene pipe self strength ratio is higher, can play good inner support effect to bellows, prevent that bellows from stopping up because of pipeline is damaged the infiltration concrete in concreting process, but polyethylene pipe costs an arm and a leg, while is because himself intensity is higher, not flexible, the operation easier that runs through polyethylene pipe for long bellows pipeline is bigger.Big when bellows quantity, when pipeline is longer, in pre-stress construction, adopt polyethylene pipe low as interior stay tube practicality, can not play good effect to the anti-blocking of bellows.
Summary of the invention
The purpose of this invention is to provide a prestress pipe anti-blocking method, these method concrete steps are as follows:
The first step after the prestress pipe installation, runs through pipeline with single steel strand as lead-in wire;
In second step, connect prestress pipe with lead-in wire traction water bag to water bag, as shown in Figure 1;
In the 3rd step, water bag two ends mounted valve dashes to water bag and to increase setting-out;
The 4th one, after filling it up with, water under high pressure closes water bag two ends valve, guarantee that enough water pressures are arranged in the water bag (in order to allow the water pressure in the water bag lasting, the port valve at water bag two ends improves as far as possible, with the prestressed pipe road junction the bigger discrepancy in elevation is arranged), the water bag installation is shown in figure two;
The 5th step, concreting, concreting finish and initial set after extract water in the water bag out, extract water bag, the cleaning prestress pipe guarantees that pipeline is unimpeded.
Adopt the rubber water bag to carry out the advantage that prestress pipe anti-blocking has three aspects:
1, after the rubber water bag is full of water under high pressure, can bear concrete pressure, play good effect preventing that prestress pipe from stopping up;
2, since rubber water bag price than polyethylene pipe at the bottom of, saved construction cost;
3, adopt the anti-blocking equipment of rubber water bag as prestress pipe, simple to operate, easy construction is than adopting the easier operation of polyethylene pipe.
Description of drawings
The present invention will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a water bag installation process schematic diagram.
Fig. 2 is a water bag installation schematic diagram.
The specific embodiment
The present invention adopts the anti-blocking material of common rubber water bag as prestress pipe, is used to protect prestress pipe.The rubber water bag arranges at prestress pipe and finishes that install before the concreting, its concrete anti-blocking method process is as follows:
1, after the prestress pipe installation, runs through pipeline as lead-in wire with single steel strand;
2, connect prestress pipe with lead-in wire traction water bag to water bag, as shown in Figure 1;
3, water bag two ends mounted valve dashes to water bag and to increase setting-out;
4, close water bag two ends valve after water under high pressure is filled it up with, guaranteeing has enough water pressures in the water bag, generally at 0.06～0.08MPa; In order to allow the water pressure in the water bag lasting, the port valve at water bag two ends improves as far as possible, with the prestressed pipe road junction the bigger discrepancy in elevation is arranged, and generally can be controlled in the scope of 1.5～3.0m according to the concrete height of building, and the water bag installation is shown in figure two;
5, concreting, concreting finish and initial set after extract water in the water bag out, extract water bag, the cleaning prestress pipe guarantees that pipeline is unimpeded.
Its diameter generally got final product than the little 1.0～1.5cm of prestressing force inside diameter of bel when the rubber water bag adopted.Learn that by test the rubber water bag can bear the pressure of 0.1MPa at least, can bear fully that concrete plays the effect of inner support to the pressure of pipeline to pipeline in the concreting process.
Adopt the rubber water bag as interior stay tube can solve long apart from prestress pipe with polyethylene pipe the unconspicuous problem of effect when anti-blocking, its price is than polyethylene pipe cheap 3/4 simultaneously, and self softness, can curl, fitting operation is very convenient, can customize corresponding rubber water bag according to prestress pipe different length and specification.In view of the advantage more than the rubber water bag, in the prestress pipe anti-blocking construction, adopt the rubber water bag can satisfy construction requirement as stay tube in the pipeline, can reduce construction cost again, be suitable for extensively promoting in the Post-tension Prestress Construction afterwards.
Disclosed all features in this manual, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this manual (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (4)
1. prestress pipe anti-blocking method is characterized in that these method concrete steps are as follows:
The first step after the prestress pipe installation, runs through pipeline with single steel strand as lead-in wire;
In second step, connect prestress pipe with lead-in wire traction water bag to water bag;
In the 3rd step, water bag two ends mounted valve dashes to water bag and to increase setting-out;
In the 4th step, after filling it up with, water under high pressure closes water bag two ends valve;
The 5th step, concreting, concreting finish and initial set after extract water in the water bag out, extract water bag, the cleaning prestress pipe guarantees that pipeline is unimpeded;
Wherein said water bag is the rubber water bag.
2. prestress pipe anti-blocking method as claimed in claim 1 is characterized in that: the diameter of described rubber water bag is than the little 1.0～1.5cm of prestress pipe internal diameter.
3. prestress pipe anti-blocking method as claimed in claim 1 is characterized in that: described the 4th step water under high pressure is filled it up with back pressure at 0.06～0.08MPa.
4. prestress pipe anti-blocking method as claimed in claim 1 is characterized in that: the port valve at described water bag two ends improves as far as possible, with the prestressed pipe road junction discrepancy in elevation of 1.5～3.0m is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101479357A CN101435269B (en) | 2008-12-22 | 2008-12-22 | Prestress pipe anti-blocking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101479357A CN101435269B (en) | 2008-12-22 | 2008-12-22 | Prestress pipe anti-blocking method |
Publications (2)
| Publication Number | Publication Date |
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| CN101435269A CN101435269A (en) | 2009-05-20 |
| CN101435269B true CN101435269B (en) | 2010-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101479357A Active CN101435269B (en) | 2008-12-22 | 2008-12-22 | Prestress pipe anti-blocking method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143752A (en) * | 2017-07-11 | 2017-09-08 | 中铁二十四局集团福建铁路建设有限公司 | A kind of prestress pipe deformation and spillage detector and its application method |
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| CN101985819B (en) * | 2010-09-14 | 2012-02-01 | 安徽万邦高森造纸有限公司 | Process for producing low-basis-weight waxed base paper |
| CN103726664B (en) * | 2013-12-25 | 2015-12-09 | 中铁十三局集团有限公司 | Reeve method in reeve device and clear hole, a kind of clear hole, post-tensioned prestressing duct |
| CN104179354B (en) * | 2014-08-29 | 2016-05-18 | 上海建工七建集团有限公司 | Prestressing force bellows dredge and using method thereof |
| CN105443864B (en) * | 2015-08-27 | 2017-12-05 | 中国十七冶集团有限公司 | A kind of method for preventing bellows to be destroyed in packing course |
| CN107338729A (en) * | 2017-07-11 | 2017-11-10 | 中铁四局集团第二工程有限公司 | A kind of prestress pipe anti-blocking device and construction method |
| CN112832537B (en) * | 2021-01-11 | 2022-05-13 | 中国十七冶集团有限公司 | Construction method for preventing blockage and pipe blockage caused by slurry leakage of prestressed pre-buried pipeline |
| CN113832955A (en) * | 2021-09-02 | 2021-12-24 | 上海隧道工程有限公司 | Filling structure of profile steel underground continuous wall lock catch joint and using method thereof |
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2008
- 2008-12-22 CN CN2008101479357A patent/CN101435269B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143752A (en) * | 2017-07-11 | 2017-09-08 | 中铁二十四局集团福建铁路建设有限公司 | A kind of prestress pipe deformation and spillage detector and its application method |
| CN107143752B (en) * | 2017-07-11 | 2019-06-21 | 中铁二十四局集团福建铁路建设有限公司 | A kind of deformation of prestress pipe and spillage detector and its application method |
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| Publication number | Publication date |
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| CN101435269A (en) | 2009-05-20 |
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Effective date of registration: 20160107 Address after: Jinniu District Kam Tong Road Chengdu city Sichuan province 610031 No. 16 Patentee after: CHINA RAILWAY NO.2 BUREAU ENGINEERING Co.,Ltd. Address before: 610041 high building, No. nine Hing Road, Chengdu hi tech Development Zone, Sichuan, 6 Patentee before: CHINA RAILWAY ERJU Co.,Ltd. Patentee before: CHINA RAILWAY ERJU 5TH ENGINEERING Co.,Ltd. |
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Address after: No. 16, Jinniu District Road, Jinniu District Road, Chengdu, Sichuan Patentee after: CHINA RAILWAY NO.2 ENGINEERING GROUP Co.,Ltd. Address before: No. 16, Jinniu District Road, Jinniu District Road, Chengdu, Sichuan Patentee before: CHINA RAILWAY NO.2 BUREAU ENGINEERING Co.,Ltd. |
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Effective date of registration: 20190109 Address after: No. 16, Jinniu District Road, Jinniu District Road, Chengdu, Sichuan Co-patentee after: CHINA RAILWAY ERJU 5TH ENGINEERING Co.,Ltd. Patentee after: CHINA RAILWAY NO.2 ENGINEERING GROUP Co.,Ltd. Address before: No. 16, Jinniu District Road, Jinniu District Road, Chengdu, Sichuan Patentee before: CHINA RAILWAY NO.2 ENGINEERING GROUP Co.,Ltd. |
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