CN204080881U - Detect cast-in-place concrete pile free of discontinuities sound detecting pipe erecting device - Google Patents
Detect cast-in-place concrete pile free of discontinuities sound detecting pipe erecting device Download PDFInfo
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- CN204080881U CN204080881U CN201420469553.7U CN201420469553U CN204080881U CN 204080881 U CN204080881 U CN 204080881U CN 201420469553 U CN201420469553 U CN 201420469553U CN 204080881 U CN204080881 U CN 204080881U
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Abstract
The utility model discloses a kind of sound wave transmission method and detect the free of discontinuities sound detecting pipe erecting device of cast-in-place concrete pile, first it utilize that steel pipe skeleton is auxiliary to transfer at the bottom of; The sound detecting pipe passage disposable installation free of discontinuities sound detecting pipe utilizing mounted steel pipe skeleton to be formed, time at the bottom of free of discontinuities sound detecting pipe is transferred at the bottom of shutoff pipe; Then concrete perfusion, extracts steel pipe skeleton section by section again in filling process, and free of discontinuities sound detecting pipe is stayed in concrete becomes the passage that sound wave transmission method detects pile construction integrity; Sound wave transmission method is adopted to detect pile construction integrity.The utility model can substantially increase operating efficiency, also a saving a large amount of steel simultaneously, reduces construction cost, improves economic benefit, in the pile foundation constructions such as railway, highway, airport, have very large application prospect.
Description
Technical field
The utility model belongs to building pile foundation technical field of construction, and especially a kind of sound wave transmission method detects cast-in-place concrete pile free of discontinuities sound detecting pipe erecting device.
Background technology
Foundation of concrete perfusion piles has been widely used in bridge substructure since the last century and room is built in foundation construction.Various without in damage testing method to piling quality and pile construction integrity, sound wave transmission method, because its accuracy of judgement, easy to detect and be not subject to the advantages such as ectocine, detected by the Bridge Piles of the every profession and trades such as railway, highway and Fang Jian and generally uses." highway engineering dynamic test for pile foundation tecnical regulations " JTG/TF81-01-2004 specify: supercritical ultrasonics technology is applicable to the integrity detection that diameter is not less than the cast-in-place concrete pile of 800mm, and it comprises across hole transmission beam method and single hole refraction process; " railway engineering Test Technology of Pile Foundation code " TB 10218-2008, J808-2008 specifies: sound wave transmission method is applicable to detect cast-in-place concrete pile pile defect position, scope and degree, judges pile body integrity classification; Stake footpath is more than or equal to the foundation pile that 2m or stake grow up under 40m or complex geological condition and sound wave transmission method should be adopted to detect.
Sound wave transmission method detects the general principle of pile construction integrity: in concrete, excite high frequency elasticity impulse wave by ultrasound pulse transmission source, and with the high-precision fluctuation characteristic accepting this impulse wave of system log (SYSLOG) and show in communication process in concrete; When there is discontinuous or damaged interface in concrete, defect face forms wave impedance interface, when ripple arrives this interface, produces the transmittance and reflectance of ripple, the transmission potential received obviously is reduced; When there is the defects such as loose, honeycomb, hole in concrete, scattering and the diffraction of ripple will be produced; According to the first arrival time of advent of ripple and energy attenuation feature, the feature such as change of frequency and waveform degree of deformity of ripple, the parameters,acoustic of coverage of survey area inner concrete can be obtained.The ultrasonic fluctuation characteristic on the different testing profile opposite of test record and inclined-plane, just can judge the character of the referenced strength of survey district inner concrete and inner existing defects, size and locus through Treatment Analysis.
Before foundation pile concrete perfusion, according to the sound detecting pipe of the pre-buried some of the size of stake diameter, (sound detecting pipe should outside stake cross section symmetrically arrangements, answer lashing inside reinforcing cage, and be parallel to each other, position is accurate, and bury underground at the bottom of stake, the mouth of pipe should exceed more than an end face 300mm; Should close at the bottom of sound detecting pipe pipe) as the lower channel of transducer; During test, every two sound detecting pipes are one group, and by the coupling of water, ultrasonic pulsative signal is launched from the transducer a sound detecting pipe, the transducer acknowledge(ment) signal in an other sound detecting pipe, and sonic wave detector measures relevant parameters and acquisition and recording stores.Transducer detects, throughout each cross section by the bottom of stake simultaneously from the bottom up successively.
One of site technology condition that sound wave transmission method detects is exactly the burying underground of sound detecting pipe as sense channel, no matter it is that highway or railway adopt steel sound detecting pipe substantially that traditional sound detecting pipe is buried underground, segmentation colligation is inside reinforcing cage and secondary cage, transfer to piecemeal in stake holes with secondary cage and reinforcing cage, the connection of sound detecting pipe adopts screw thread or sleeve connection, then majority welds, and ensures that connection is closely waterproof.
Although this method is used till today always, the defect find obviously have two in Construction practices in: is construction plugging, and two is waste materials.Construction plugging mainly because thickness of steel pipe not, link loosely, be knocked or bend and fall into the reasons such as stone in pipe, sound wave sending and receiving transducer freely can not pass through in pipe, must not take manually to dredge or have no alternative but to carry out the pore-creating of brill core, bring cost to increase and duration pressure to construction; Waste material is mainly in order to ensure that every root sound detecting pipe is parallel to each other by code requirement steel pipe, position is relatively fixing, and the reinforcing bar of have to employing 3 or 4 (determining according to stake footpath) φ 20-φ 22 is connected with the main muscle of reinforcing cage, at the bottom of extending to; Also one circle muscle of putting more energy into will be established to guarantee the opposing parallel of sound detecting pipe every 2 meters, these reinforcing bars imbed underground at this point, and each pile foundation will be processed a set of, and reinforcing bar waste is very serious simultaneously.
Below for certain objective special order stake footpath 1.25M castinplace pile, be calculated as follows:
1. basic condition: the long 60M of stake, stake footpath 1.25M, reinforcing cage diameter 1.10M, length of reinforcing cage 30M, secondary cage length 30M, secondary cage reinforcing bar is the twisted steel of φ 20, and the every 2M of secondary cage establishes muscle of putting more energy into together; Sound detecting pipe adopts φ 57X3 steel pipe.
2. material usage:
1), secondary cage reinforcing bar: 3 secondary cages extend reinforcing bar, every root 30M, 3 90M; Every 2M establishes muscle of putting more energy into together, Gong She 15 road, often encloses 3.7M (containing overlap), altogether 55.5M,
Add up to 145.5M.145.5M x 2.46kg/M x 4.5 yuan/kg=1610.5 unit.
2), steel sound detecting pipe: the long 60M of stake, sound detecting pipe will exceed 2M, and namely 3 sound detecting pipes amount to length be 62M × 3=186M. project sound detecting pipe bid price is 24.5 yuan every meter, 186M × 24.5 yuan/M=4557 unit.
Secondary cage reinforcing bar and steel sound detecting pipe add up to: 1610.5+4557=6167.5 unit.
Certain visitor's single-minded bid section two grand bridges amount to 50KM, pile foundation about 10000, need secondary cage reinforcing bar and steel sound detecting pipe about 6,000 ten thousand yuan altogether.Visitor specially amounts to 15 bid sections completely, and total length 680KM, pile foundation about 140,000, needs secondary cage reinforcing bar and steel sound detecting pipe about 8.4 hundred million yuan altogether.And adopting free of discontinuities sound detecting pipe mounting method, above-mentioned all steel and steel pipe can all be saved, and the PE tube material of employing is only 1/4th of steel, can direct saving cost of materials 6.3 hundred million, visible material waste and serious, new method is significantly cost-saving, economic benefit and obviously.
In a word, traditional sound detecting pipe method for embedding had both caused the increase of human cost and very large duration pressure, cause again serious waste of material, under the requirement of energy-conservation, economic, efficient principle, be badly in need of finding a kind of sound detecting pipe that not only can not cause plugging but also can save great deal of steel and bury way underground, namely sound wave transmission method detects cast-in-place concrete pile free of discontinuities sound detecting pipe mounting method.
Utility model content
The purpose of this utility model is the shortcoming overcoming above-mentioned prior art, and provide a kind of sound wave transmission method to detect cast-in-place concrete pile free of discontinuities sound detecting pipe erecting device, it installs simple, and device easily realizes.
The purpose of this utility model is achieved through the following technical solutions:
The utility model proposes a kind of sound wave transmission method and detect cast-in-place concrete pile free of discontinuities sound detecting pipe erecting device, the steel pipe skeleton linkage comprise multistage steel pipe skeleton, connecting steel pipe skeleton head and the tail; Described steel pipe skeleton comprises the many lengths of steel pipes be parallel to each other, and many lengths of steel pipes are vertically distributed in one circumferentially, and are fixed by dismountable arc section between adjacent steel pipeline section, and the internal channel of described lengths of steel pipes is as sound detecting pipe passage; Described steel pipe skeleton linkage comprises link plate, sleeve, is fixedly installed the first block at the two ends of each lengths of steel pipes; Described link plate is the two panels arc-shaped structure that pipeline section can be wrapped, and link plate is provided with the opening corresponding with the first stop location on pipeline section, and described jacket casing is located on the external diameter of link plate.
In above-mentioned steel pipe skeleton, be respectively arranged with at lengths of steel pipes both ends the arc section connecting adjacent steel pipeline section.
Further, every section of described steel pipe skeleton length is 3-6m.
The utility model has following beneficial effect:
The utility model utilizes PE pipe to stay in concrete becomes the passage that sound wave transmission method detects pile construction integrity, thus instead of the connected steel sound detecting pipe of traditional plurality of sections of steel pipes, solve the plugging phenomenon that traditional steel sound detecting pipe exists in construction well, substantially increase operating efficiency, also a saving a large amount of steel simultaneously, reduce construction cost, improve economic benefit, in the pile foundation constructions such as railway, highway, airport, have very large application prospect.
Accompanying drawing explanation
Fig. 1 is the upper and lower two joint fastener for connection schematic diagrames of steel pipe skeleton;
Fig. 2 is the lateral connection schematic diagram between every two of skeleton steel pipe.
Wherein: 1 is 3M steel pipe; 2 is sleeve; 3 is link plate; 4 is the first block; 5 is back-up ring; 7 is arc section.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
The utility model, as Fig. 1 and Fig. 2, comprises multistage steel pipe skeleton, by the steel pipe skeleton linkage of steel pipe skeleton head and the tail connection; Described steel pipe skeleton comprises the many lengths of steel pipes be parallel to each other 1, and many lengths of steel pipes 1 are vertically distributed in one circumferentially, and is fixed by dismountable arc section 7 between adjacent steel pipeline section 1, and the internal channel of described lengths of steel pipes 1 is as sound detecting pipe passage; Described steel pipe skeleton linkage comprises link plate 3, sleeve 2, is fixedly installed the first block 4 at the two ends of each lengths of steel pipes 1; Described link plate 3 is the two panels arc-shaped structures that pipeline section 1 can be wrapped, and link plate 3 is provided with the opening corresponding with the first block 4 position on pipeline section 1, and described sleeve 2 is set on the external diameter of link plate 3.
In preferred embodiment of the present utility model, be respectively arranged with at lengths of steel pipes 1 both ends the arc section 7 connecting adjacent steel pipeline section 1.Arc section 7 carries out axial location by the block 5 being arranged on lengths of steel pipes both ends.
Every section of described steel pipe skeleton length is 3-6m.
In sum, the free of discontinuities sound detecting pipe erecting device that sound wave transmission method of the present utility model detects cast-in-place concrete pile utilizes steel pipe inner channel-shaped integrally sound detecting pipe passage, disposable installation free of discontinuities sound detecting pipe, time at the bottom of free of discontinuities sound detecting pipe is transferred at the bottom of shutoff pipe; Then concrete perfusion, extracts steel pipe section by section again in filling process, and free of discontinuities sound detecting pipe is stayed in concrete becomes the passage that sound wave transmission method detects pile construction integrity; Sound wave transmission method is adopted to detect pile construction integrity.Described free of discontinuities sound detecting pipe is through free of discontinuities PE material high strength pipe or steel bellow.
Claims (3)
1. detect a cast-in-place concrete pile free of discontinuities sound detecting pipe erecting device, it is characterized in that, the steel pipe skeleton linkage comprise multistage steel pipe skeleton, connecting steel pipe skeleton head and the tail; Described steel pipe skeleton comprises the many lengths of steel pipes be parallel to each other (1), many lengths of steel pipes (1) are vertically distributed in one circumferentially, and fixed by dismountable arc section (7) between adjacent steel pipeline section (1), the internal channel of described lengths of steel pipes (1) is as sound detecting pipe passage; Described steel pipe skeleton linkage comprises link plate (3), sleeve (2), is fixedly installed the first block (4) at the two ends of each lengths of steel pipes (1); Described link plate (3) is the two panels arc-shaped structure that pipeline section (1) can be wrapped, link plate (3) is provided with the opening corresponding with the first block (4) position on pipeline section (1), and described sleeve (2) is set on the external diameter of link plate (3).
2. detection cast-in-place concrete pile free of discontinuities sound detecting pipe erecting device according to claim 1, it is characterized in that, in described steel pipe skeleton, be respectively arranged with at lengths of steel pipes (1) both ends the arc section (7) connecting adjacent steel pipeline section (1).
3. detection cast-in-place concrete pile free of discontinuities sound detecting pipe erecting device according to claim 1, it is characterized in that, every section of described steel pipe skeleton length is 3-6m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420469553.7U CN204080881U (en) | 2014-08-19 | 2014-08-19 | Detect cast-in-place concrete pile free of discontinuities sound detecting pipe erecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420469553.7U CN204080881U (en) | 2014-08-19 | 2014-08-19 | Detect cast-in-place concrete pile free of discontinuities sound detecting pipe erecting device |
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| CN204080881U true CN204080881U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420469553.7U Expired - Fee Related CN204080881U (en) | 2014-08-19 | 2014-08-19 | Detect cast-in-place concrete pile free of discontinuities sound detecting pipe erecting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013272A (en) * | 2016-06-30 | 2016-10-12 | 中国电建集团中南勘测设计研究院有限公司 | Auxiliary installation device for pipe monitoring equipment and installation method for pipe monitoring equipment |
-
2014
- 2014-08-19 CN CN201420469553.7U patent/CN204080881U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013272A (en) * | 2016-06-30 | 2016-10-12 | 中国电建集团中南勘测设计研究院有限公司 | Auxiliary installation device for pipe monitoring equipment and installation method for pipe monitoring equipment |
| CN106013272B (en) * | 2016-06-30 | 2018-02-09 | 中国电建集团中南勘测设计研究院有限公司 | The auxiliary installation device and tubing monitoring device installation method of tubing monitoring device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20170819 |
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| CF01 | Termination of patent right due to non-payment of annual fee |