CN101393136A - Post-tensioned concrete structure pore squeezing quality detection method - Google Patents
Post-tensioned concrete structure pore squeezing quality detection method Download PDFInfo
- Publication number
- CN101393136A CN101393136A CNA2008102017730A CN200810201773A CN101393136A CN 101393136 A CN101393136 A CN 101393136A CN A2008102017730 A CNA2008102017730 A CN A2008102017730A CN 200810201773 A CN200810201773 A CN 200810201773A CN 101393136 A CN101393136 A CN 101393136A
- Authority
- CN
- China
- Prior art keywords
- duct
- concrete structure
- post
- detection method
- channel
- 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.)
- Granted
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention relates to the technical field of non-destructive test, in particular to a method for detecting the mud jacking quality of a channel with a post tensioned stressed concrete structure, which comprises the following steps: a. a through hole is at least arranged on the channel with the stressed concrete structure; b. an observation tube provided with a transparent film is firmly connected to the through hole of the channel; c. concrete is cast on the outside of the channel, and grouting is performed on the channel after concrete is solidified and a steel stranded wire is pulled; and d. mud in the channel is observed through the observation tube, so as to determine whether the mud in the channel is dense. Due to adoption of the technical proposal, the method simplifies the means for detecting the mud jacking quality of the channel with the stressed concrete structure, and eliminates the potential safety hazards of a stressed concrete structure.
Description
Technical field
The present invention relates to technical field of nondestructive testing, especially relate to a kind of detection method of post-tensioned concrete structure pore squeezing quality.
Background technology
The domestic and international at present detection method for the prestressed reinforced concrete construction pore squeezing quality comprises: X collimation method, impact echo method, ultrasonic electromagnetic wave method, the back perforate detection method of involving.The X collimation method, the impact echo method, the ultrasonic electromagnetic wave method that involves still can't be carried out extensive practicality, main cause: this is because concrete is by cement stone, sand, the heterogeneous condensed matter that the hole of rubble or cobble and water-filling or air etc. partly constitute, these constituents have different acoustic impedances, the Propagation of Energy attenuation ratio is bigger, and corrugated tube and grout have been increased in the prestressed pore passage, the steel strand wires medium, X ray, the ultrasonic electromagnetic wave method method that involves has the shortcoming that is subjected to the metal material screening effect, and the impact echo method has the interference that can not penetrate plastic tube and be subjected to concrete defect outside the hole; Back perforate detection method can't avoid damaging deformed bar in the perforate process, there be limited evidence currently of uses in engineering.
Summary of the invention
Technical matters to be solved by this invention provides a kind of detection method prior art defective, the easy post-tensioned concrete structure pore squeezing quality of operation that overcomes.The technical scheme that the present invention solves its technical matters employing is: a kind of detection method of post-tensioned concrete structure pore squeezing quality, and it comprises the steps: a, bores a through hole at least on the prestressed reinforced concrete construction duct; B, an observation tube that has transparent membrane is fastenedly connected on the through hole in duct, transparent membrane is arranged on the joint portion of observation tube and through hole; C, outside the duct casting concrete and treat behind concrete curing, the stretch-draw steel strand wires to be in the milk in the duct; D, the slurry in the duct is observed through observation tube, whether closely knit to confirm the slurry in the duct.Technical matters to be solved by this invention also can further be solved by following technical solution: as the slurry leakiness in the duct, then destroy transparent membrane and by observation tube the duct is replenished grouting, the slurry in the duct is irritated closely knit; Slurry in the duct is observed the employing endoscope, and endoscope is the commercially available prod; The diameter of through hole is 20mm; Be fastenedly connected and be bonding.The present invention has simplified the detection means of prestressed reinforced concrete construction pore squeezing quality owing to adopt technique scheme, has eliminated the potential safety hazard of prestressed reinforced concrete construction.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiments of the invention the present invention is described in further detail:
Fig. 1 is that observation tube of the present invention is bonded in the structural representation (before the concreting) on the duct.
Fig. 2 is working state schematic representation of the present invention (after the concreting).
With reference to Fig. 1, Fig. 2.Duct 1 of the present invention is provided with through hole 2, and the observation tube 4 that has transparent membrane 3 is bonded on the duct 2, duct 1 outer casting concrete 5, and steel strand wires 6 being set in the duct 1 and irritating has slurry 7.
Embodiment
Embodiment 1: with reference to Fig. 1, Fig. 2.The used slurry of the present invention adopts the nothing contraction of prior art, no bleeding, fluidity to starch greater than the prestressed reinforced concrete construction duct of 35Mpa is special-purpose less than 15mm, intensity.At first on the prestressed reinforced concrete construction duct, bore a through hole at least,, bending place long as the prestressed reinforced concrete construction duct more for a long time, can bore several through holes by the different parts in the duct according to its length and shape, the observation tube that then will have transparent membrane is bonded on the duct; Subsequently by prior art casting concrete and treat behind concrete curing, the stretch-draw steel strand wires to be in the milk in the duct outside the duct, and commercially available endoscope can be stretched in the observation tube slurry in the duct is observed, whether irritated closely knit to confirm the slurry in the duct, irritated closely knit as the slurry in the duct, can be realized goal of the invention of the present invention.
Embodiment 2: with reference to Fig. 1, Fig. 2.Do not irritated closely knit as the slurry in the duct, then destroy transparent membrane and by observation tube the duct is replenished grouting, the slurry in the duct is irritated closely knit, to realize goal of the invention of the present invention.
Claims (5)
1. the detection method of a post-tensioned concrete structure pore squeezing quality is characterized in that it comprises the steps:
A, on the prestressed reinforced concrete construction duct, bore a through hole at least;
B, an observation tube that has transparent membrane is fastenedly connected on the through hole in duct;
C, outside the duct casting concrete and treat behind concrete curing, the stretch-draw steel strand wires to be in the milk in the duct;
D, the slurry in the duct is observed through observation tube, whether closely knit to confirm the slurry in the duct.
2. the detection method of a kind of post-tensioned concrete structure pore squeezing quality according to claim 1, it is characterized in that: as the slurry leakiness in the duct, then destroy transparent membrane and by observation tube the duct is replenished grouting, the slurry in the duct is irritated closely knit.
3. the detection method of a kind of post-tensioned concrete structure pore squeezing quality according to claim 1 is characterized in that: the slurry in the duct is observed the employing endoscope.
4. the detection method of a kind of post-tensioned concrete structure pore squeezing quality according to claim 1, it is characterized in that: the diameter of through hole is 20mm.
5. the detection method of a kind of post-tensioned concrete structure pore squeezing quality according to claim 1 is characterized in that: being fastenedly connected is bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102017730A CN101393136B (en) | 2008-10-24 | 2008-10-24 | Post-tensioned concrete structure pore squeezing quality detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102017730A CN101393136B (en) | 2008-10-24 | 2008-10-24 | Post-tensioned concrete structure pore squeezing quality detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101393136A true CN101393136A (en) | 2009-03-25 |
| CN101393136B CN101393136B (en) | 2010-09-15 |
Family
ID=40493537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102017730A Expired - Fee Related CN101393136B (en) | 2008-10-24 | 2008-10-24 | Post-tensioned concrete structure pore squeezing quality detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101393136B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905478A (en) * | 2010-08-16 | 2010-12-08 | 中冶建工有限公司 | Control method of concrete pouring compactness for anchor backing plate by post-tensioning method |
| CN103364409A (en) * | 2013-07-17 | 2013-10-23 | 陈熙贵 | In-vitro simulation process for bridge pre-stress duct grouting |
| CN103616265A (en) * | 2013-10-28 | 2014-03-05 | 湖南省交通科学研究院 | Pipeline detector calibrating model making method and calibrating model |
| CN105929108A (en) * | 2016-04-12 | 2016-09-07 | 浙江省交通工程建设集团有限公司 | Inspection method of prestressed duct grouting quality |
| CN106012873A (en) * | 2016-07-18 | 2016-10-12 | 北京交通大学 | Rear pre-stress duct grouting cavity repairing technique |
| CN106769441A (en) * | 2016-11-15 | 2017-05-31 | 中国建筑科学研究院 | Method for detecting solid strength and construction quality of grouting material for grouting connection of steel bar sleeve |
| CN108344799A (en) * | 2017-12-09 | 2018-07-31 | 菏泽城建工程发展集团有限公司 | A kind of detection method for bridge prestress pore channel slip casting plumpness |
| CN108918660A (en) * | 2018-05-19 | 2018-11-30 | 徐光大 | The lossless detection method of the sleeve grouting plumpness of reinforced bar sleeve grouting jointing |
| CN112227725A (en) * | 2020-11-11 | 2021-01-15 | 中交第四公路工程局有限公司 | Grouting structure of long pore passage of prestressed concrete stiffening beam and construction method thereof |
| CN112502048A (en) * | 2020-12-08 | 2021-03-16 | 云南省建设投资控股集团有限公司 | Highway T roof beam hogging moment slip casting exhaust observation pipe |
-
2008
- 2008-10-24 CN CN2008102017730A patent/CN101393136B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905478B (en) * | 2010-08-16 | 2011-12-14 | 中冶建工有限公司 | Control method of concrete pouring compactness for anchor backing plate by post-tensioning method |
| CN101905478A (en) * | 2010-08-16 | 2010-12-08 | 中冶建工有限公司 | Control method of concrete pouring compactness for anchor backing plate by post-tensioning method |
| CN103364409A (en) * | 2013-07-17 | 2013-10-23 | 陈熙贵 | In-vitro simulation process for bridge pre-stress duct grouting |
| CN103616265A (en) * | 2013-10-28 | 2014-03-05 | 湖南省交通科学研究院 | Pipeline detector calibrating model making method and calibrating model |
| CN103616265B (en) * | 2013-10-28 | 2016-06-08 | 湖南省交通科学研究院 | Manufacture the method for pipeline detector peg model, peg model |
| CN105929108B (en) * | 2016-04-12 | 2019-01-22 | 浙江交工集团股份有限公司 | Prestress hole path pressure grouting quality determining method |
| CN105929108A (en) * | 2016-04-12 | 2016-09-07 | 浙江省交通工程建设集团有限公司 | Inspection method of prestressed duct grouting quality |
| CN106012873A (en) * | 2016-07-18 | 2016-10-12 | 北京交通大学 | Rear pre-stress duct grouting cavity repairing technique |
| CN106769441A (en) * | 2016-11-15 | 2017-05-31 | 中国建筑科学研究院 | Method for detecting solid strength and construction quality of grouting material for grouting connection of steel bar sleeve |
| CN108344799A (en) * | 2017-12-09 | 2018-07-31 | 菏泽城建工程发展集团有限公司 | A kind of detection method for bridge prestress pore channel slip casting plumpness |
| CN108918660A (en) * | 2018-05-19 | 2018-11-30 | 徐光大 | The lossless detection method of the sleeve grouting plumpness of reinforced bar sleeve grouting jointing |
| CN108918660B (en) * | 2018-05-19 | 2020-12-25 | 徐光大 | Nondestructive detection method for sleeve grouting fullness of steel bar sleeve grouting connection joint |
| CN112227725A (en) * | 2020-11-11 | 2021-01-15 | 中交第四公路工程局有限公司 | Grouting structure of long pore passage of prestressed concrete stiffening beam and construction method thereof |
| CN112502048A (en) * | 2020-12-08 | 2021-03-16 | 云南省建设投资控股集团有限公司 | Highway T roof beam hogging moment slip casting exhaust observation pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101393136B (en) | 2010-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101393136B (en) | Post-tensioned concrete structure pore squeezing quality detection method | |
| Caverzan et al. | Tensile behaviour of high performance fibre-reinforced cementitious composites at high strain rates | |
| CN103852492B (en) | Pumping of prostressed duct density monitoring method based on piezoelectric ceramics | |
| CN110080802B (en) | Rapid danger-removing reinforcement construction method for tunnel | |
| CN101694479A (en) | Grouting quality detection method of bridge prestress pore channel | |
| CN100374819C (en) | Method of nondestructive detecting anchor arm length buried in defferent mediums by utilizing supersonic guided wave | |
| CN110701425B (en) | Non-excavation type pipeline repairing method | |
| CN108801345A (en) | The tandem sleeve grouting detection structures and methods of vertical prefabricated components | |
| CN104074368A (en) | Concrete structure reinforcing method, self-anchored prestress assembly, assembled tensioning assembly | |
| CN104060607B (en) | Prestress steel pipe pile and production method of prestress steel pipe pile | |
| CN106932485A (en) | A kind of presstressed reinforcing steel corrosion penetration monitoring method based on piezoelectric intelligent aggregate | |
| Li et al. | Influence of grouted sleeve and concrete strength of fabricated shear wall on acoustic emission detection method for sleeve compactness | |
| Li et al. | Analysis of acoustic emission parameters of steel plate reinforcement effect on shearing zone of ECC-NC composite beams | |
| CN107632069A (en) | A kind of concrete beam strengthening steel sheet peeling off detecting system and detection method | |
| Deng et al. | Using acoustic emission parameters to study damage and fracture characteristics of concrete with different pour intervals cold joints | |
| CN208296891U (en) | The tandem sleeve grouting detection structure of vertical prefabricated components | |
| CN202787099U (en) | Reinforced concrete cap beam external prestressing structure | |
| CN104237388B (en) | Spherical ultrasonic probe for detecting defects of nonmetal solid material and detection method | |
| CN205529907U (en) | P -type anchorage device at fixed end | |
| Wang et al. | Propagation properties of guided wave in the anchorage structure of rock bolts | |
| CN106908374A (en) | A kind of embedded rebar corrosion ultrasonic monitoring device | |
| CN106352165A (en) | Prestressed carbon fiber reinforced structure design of prestressed concrete cylinder pipe (PCCP) | |
| CN211058060U (en) | Wall structure of grouting sleeve | |
| CN204139162U (en) | Concrete tubular pile pile splicing structure | |
| CN110424571A (en) | A kind of grout sleeve wall body structure and its quality determining method |
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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20131024 |