CN2105068U - Formed hole drawing tube used for ultrosonic detecting quality of pile base - Google Patents
Formed hole drawing tube used for ultrosonic detecting quality of pile base Download PDFInfo
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- CN2105068U CN2105068U CN 91227446 CN91227446U CN2105068U CN 2105068 U CN2105068 U CN 2105068U CN 91227446 CN91227446 CN 91227446 CN 91227446 U CN91227446 U CN 91227446U CN 2105068 U CN2105068 U CN 2105068U
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- pipe
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- pile foundation
- withdrawing pipe
- withdrawing
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model belongs to pore-forming drawing tube for static test of building pile bases, aiming to provide a reusable pore-forming drawing tube for the ultrasonic quality test of pile bases and for simultaneously reducing the passing interface of ultrasonic waves. The primary structure of the utility model is made of soft materials and has an outer diameter of 40-80 mm in the natural state. The pore-forming drawing tube has the advantages of reducing the testing cost of the pile bases, decreasing the original four interfaces for ultrasonic tube test to two interfaces now and enhancing the testing precision of the pile bases.
Description
The utility model belongs to a kind of withdrawing pipe that the buildings pile static test is used, and is a kind of pore-forming withdrawing pipe that is used for the pile foundation quality ultrasound examination.
In the prior art, in " road engineering geology " magazine that whole nation road engineering geology scientific and technological information net is published, interim in 1986 the 4th volumes the 3rd, disclose in " research and the application of ultrasound examination cast-in-place pile concrete quality " literary composition, ultrasound examination is like this narration for pile foundation quality: " quality of using ultrasound ripple Non-Destructive Testing concrete pile; will fix three steel pipes in advance as sound detecting pipe on steel reinforcement cage; about 50 millimeters of pipe diameter; probe unblocked work in pipe is moved vertically; will fill clear water in the sound detecting pipe and make couplant is gone so that ultrasonic energy is coupled in the concrete equidistantly.”
In " operating technique " magazine of 1991 the 3rd phases, in " structural concrete Dynamic Non-Destruction Measurement development Overview " literary composition, propose: the lossless detection method of concrete defect adopts ultrasonic method more, the deep crack of large volume concrete structural or defect detection, Romania, Canada, states such as Japan, main boring or the member used is before placing concrete, according to the pipe of surveying the pre-buried good transducers of needs (referring to test probe), can in pipe, survey after being generally the plastic tube placing concrete, interface between two probes is: couplant and sound detecting pipe inwall, sound detecting pipe outer wall and pile foundation, pile foundation and sound detecting pipe outer wall, sound detecting pipe inwall and couplant have four interfaces.
Weak point is in the such scheme: concrete pipe base of every survey, will spend tens meters to 200 meters of sound detecting pipes, long 10～50 meters of general pile foundation, even also have longer, owing to can't take out sound detecting pipe before and after detecting, thereby a large amount of consumption tubing, and, thereby influencing accuracy of detection in varying degrees because the measurement of pile foundation interface is more.
The purpose of this utility model is: in the pile foundation quality ultrasound examination, design a kind of pore-forming withdrawing pipe that can be repeatedly used, reduce the interface that ultrasound wave passes through simultaneously, thereby improve the precision that pile foundation detects.
Technology contents of the present utility model is: the pore-forming withdrawing pipe 3 that is used for the pile foundation quality ultrasound examination is to be made by flexible material, and the external diameter under its state of nature is 40～80 millimeters.
Technology contents of the present utility model also comprises: withdrawing pipe 3 usefulness set collars 2 assemblings that can be repeatedly used are limited on the base for post steel reinforcement cage master muscle 5, and can break away from pile foundation by withdrawing.
The withdrawing pipe 3 that flexible material is made is to be made by soft rubber, or is made by soft synthetic plastic, and dwindling all of the growth of the length of withdrawing pipe 3 and external diameter is directly proportional with the size of its suffered pulling force.
Accompanying drawing drawing of the present utility model is described as follows:
Fig. 1 is the mounting structure front view of pile foundation quality ultrasound examination pore-forming withdrawing pipe.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the sectional plan view during the pile foundation quality ultrasound examination behind the pore-forming.
Fig. 4 is the vertical view of Fig. 3.
Number in the figure is described as follows:
The 1-concrete pipe base, 2-withdrawing pipe set collar, 3-pore-forming withdrawing pipe, 4-stiffener, 5-pile foundation steel reinforcement cage master muscle, 6-back cover, 7-transmitting probe, 8-nonmetal ultrasonic detector, 9-lead, 10-receiving transducer, 11-ultrasound examination duct.
Embodiment of the present utility model is as follows:
Embodiment 1: referring to Fig. 1 to Fig. 4, the bored concrete pile well diameter of getting through rig is 1.2 meters, 44 meters of well depths, when the embedded bar cage, make the annulus of 45～85 millimeters of internal diameters by the reinforcing bar of φ 8, be welded on the steel reinforcement cage master muscle 5 with 400 millimeters of vertical spacings such as the set collar 2 that adopts φ 55 internal diameters, two groups of parallel set collars 2 of so vertical welding, in set collar 2, penetrate external diameter and be the withdrawing pipe 3 that the soft rubber of φ 50 is made, the back cover 6 that make with metal or timber or other material in hole, withdrawing pipe 3 bottom seals temporarily, pours in down a chimney in the withdrawing pipe to prevent mud and grout.In descending reinforcing cage progressively, the withdrawing pipe 3 that outside surface scribbles one deck release agent or butter also is put in the wellhole down thereupon, when in priming concrete pile hole, putting to 44 meters, place the straight stiffener 4 of level and smooth light of a φ 16 in the internal diameter of withdrawing pipe 3d20, as the rigidity that increases withdrawing pipe 3, guarantee that withdrawing pipe 3 is subjected to still keeping vertical indeformable after concrete pressure and the impulsive force, be not shifted, then by the building operation requirement, with concrete spouting in the stake hole, concrete pipe base 1 after filling was through initial set 6～8 hours, take out stiffener 4, vertically extract withdrawing pipe 3, form sounding duct 11, promptly form two parallel ultrasound examination ducts 11 for inwall by concrete pipe base 1.Before detection, clear water is injected detection duct 11 as couplant, the lengthening transmitting probe 7 and receiving transducer 10 along with lead 9, put into two respectively and detect duct 11, under 8 work of nonmetal ultrasonic detector,, record the velocity of propagation of ultrasound wave in concrete by quantitative detection, amplitude variations and frequency change reflect pile foundation 1 quality of concrete.Interface 10 is couplant and pile foundation, pile foundation and two interfaces of couplant to ultrasound wave from transmitting probe 7 to receiving transducer, thereby have four interfaces when making original employing sound detecting pipe and change into two present interfaces, reduce hyperacoustic decay, improved the precision that pile foundation quality detects.
Embodiment 2: the bored concrete pile well diameter of getting through rig is 1.2 meters, 25 meters of well depths, when the embedded bar cage, the reinforcing bar of φ 6 is made the annulus that internal diameter is φ 45 or φ 85, one by one be that spacing is welded on the steel reinforcement cage master muscle 5 with 350 millimeters, on the steel reinforcement cage section, be equidistant 3 vertical welding with this form, form the set collar 2 of three withdrawing pipes 3, perhaps, increase the quantity of the withdrawing pipe 3 on the pile foundation 1 according to the increase of pile foundation diameter.Along with steel reinforcement cage is progressively put into the bored concrete pile wellhole, make the hole, withdrawing pipe 3 bottom of external diameter φ 40 or φ 80 seals with timber with soft synthetic plastic temporarily, its outside surface scribbles one deck remover or butter penetrates in the set collar 2 again, put into the bored concrete pile wellhole thereupon, dark until 25 meters, in three withdrawing pipes 3, penetrate three straight smooth stiffeners 4 then, when concrete spouting forms pile foundation 1 behind the stake hole, took out stiffener 4 in 8 hours through initial set, vertically extract soft synthetic plastic withdrawing pipe 3, just formed duct 11, i.e. the ultrasound examination duct 11 that is triangularly arranged on the pile foundation 1.Before detection, the couplant clear water is injected in the detection duct 11, then transmitting probe 7 with receive and talk 10 and put into and detect duct 11, pile foundation between two ducts 1 is carried out ultrasound examination, in like manner, reflect between two probes by quantitative ultrasound wave velocity of propagation, amplitude variations and the frequency change in concrete of recording---the pile foundation quality between two interfaces.
The utility model has the advantages that:
1, owing to adopted the pipe of being made by flexible material as the withdrawing pipe, so that this pipe can be repeatedly used, thereby greatly reduce the consumption of former sound detecting pipe, reduced the pile test expense, make the expense of every pile base reduce about 1500 yuan.
2, the bureau of highways, Shaanxi Prov, has been carried out pile foundation and has been detected test by the withdrawing pipe that flexible material is made this, proves that this technical scheme is fully reliable, and expection will bring immeasurable value for social and economy.
3, owing to adopted this withdrawing pipe, four interfaces when ultrasound examination was detected with sound detecting pipe originally reduce to present two interfaces, thereby have reduced hyperacoustic decay, have improved the accuracy of detection of pile foundation quality.
Claims (4)
1, a kind of pore-forming withdrawing pipe that is used for the pile foundation quality ultrasound examination, it is characterized in that: the withdrawing pipe of being made by flexible material is 40～80 millimeters at the external diameter under the state of nature.
2, the pore-forming withdrawing pipe that is used for the pile foundation quality ultrasound examination according to claim 1 is characterized in that: withdrawing pipe 3 usefulness set collars 2 assemblings that can be repeatedly used are limited on the base for post steel reinforcement cage.
3, the pore-forming withdrawing pipe that is used for the pile foundation quality ultrasound examination according to claim 1 and 2 is characterized in that: made by soft rubber, dwindling all of the growth of its length and external diameter is directly proportional with the size of its suffered pulling force.
4, the pore-forming withdrawing pipe that is used for the pile foundation quality ultrasound examination according to claim 1 and 2 is characterized in that: made by soft synthetic plastic, dwindling all of the growth of its length and external diameter is directly proportional with the size of its suffered pulling force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91227446 CN2105068U (en) | 1991-10-23 | 1991-10-23 | Formed hole drawing tube used for ultrosonic detecting quality of pile base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91227446 CN2105068U (en) | 1991-10-23 | 1991-10-23 | Formed hole drawing tube used for ultrosonic detecting quality of pile base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2105068U true CN2105068U (en) | 1992-05-20 |
Family
ID=4933333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91227446 Granted CN2105068U (en) | 1991-10-23 | 1991-10-23 | Formed hole drawing tube used for ultrosonic detecting quality of pile base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2105068U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906766A (en) * | 2010-08-10 | 2010-12-08 | 广东水电二局股份有限公司 | Pore-forming method of compacted density test holes for thick-layer roller compacted concrete |
| CN102071708A (en) * | 2010-12-22 | 2011-05-25 | 浙江大学 | Device for testing performances of sediment at bottom of bored concrete pile by ultrasonic wave |
| CN104763003A (en) * | 2015-04-27 | 2015-07-08 | 中冶建工集团有限公司 | Sounding pipe device for concrete pile or pile foundation and installing method of sounding pipe device |
| CN106018562A (en) * | 2016-07-01 | 2016-10-12 | 杭州敦固建筑特种工程有限公司 | Concrete filled steel tubular column mechanical wave testing equipment tool and arrangement method |
| CN108761049A (en) * | 2018-06-13 | 2018-11-06 | 中国建筑科学研究院有限公司 | Device and method for detecting grouting fullness of steel bar connecting sleeve through preformed hole |
-
1991
- 1991-10-23 CN CN 91227446 patent/CN2105068U/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906766A (en) * | 2010-08-10 | 2010-12-08 | 广东水电二局股份有限公司 | Pore-forming method of compacted density test holes for thick-layer roller compacted concrete |
| CN101906766B (en) * | 2010-08-10 | 2011-11-16 | 广东水电二局股份有限公司 | Pore-forming method of compacted density test holes for thick-layer roller compacted concrete |
| CN102071708A (en) * | 2010-12-22 | 2011-05-25 | 浙江大学 | Device for testing performances of sediment at bottom of bored concrete pile by ultrasonic wave |
| CN104763003A (en) * | 2015-04-27 | 2015-07-08 | 中冶建工集团有限公司 | Sounding pipe device for concrete pile or pile foundation and installing method of sounding pipe device |
| CN104763003B (en) * | 2015-04-27 | 2016-06-08 | 中冶建工集团有限公司 | A kind of sound detecting pipe device for concrete-pile or pile foundation and installation method thereof |
| CN106018562A (en) * | 2016-07-01 | 2016-10-12 | 杭州敦固建筑特种工程有限公司 | Concrete filled steel tubular column mechanical wave testing equipment tool and arrangement method |
| CN108761049A (en) * | 2018-06-13 | 2018-11-06 | 中国建筑科学研究院有限公司 | Device and method for detecting grouting fullness of steel bar connecting sleeve through preformed hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: PUBLIC SECURITY BUREAU, SHAANXI PROV TO: BUREAU OF HIGHWAYS, SHAANXI PROV |
|
| CU01 | Correction of utility model patent |
Correction item: Patentee Correct: Shaanxi Highway Administration False: Public Security Bureau, Shaanxi Prov Page: The title page |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Patentee Correct: Shaanxi Highway Administration False: Public Security Bureau, Shaanxi Prov Number: 21 Page: 182 Volume: 8 Correction item: Patentee Correct: Shaanxi Highway Administration False: Public Security Bureau, Shaanxi Prov Number: 21 Page: 320 Volume: 8 Correction item: Patentee Correct: Shaanxi Highway Administration False: Public Security Bureau, Shaanxi Prov Number: 21 Page: 332 Volume: 8 Correction item: Patentee Correct: Shaanxi Highway Administration False: Public Security Bureau, Shaanxi Prov Number: 21 Page: 305 Volume: 8 |
|
| ERR | Gazette correction |
Free format text: CORRECT: PATENTEE; FROM: PUBLIC SECURITY BUREAU, SHAANXI PROV TO: BUREAU OF HIGHWAYS, SHAANXI PROV |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |