CN105672381B - A kind of ultrasonic wave pile bottom sediment thickness detection apparatus and detection method - Google Patents
A kind of ultrasonic wave pile bottom sediment thickness detection apparatus and detection method Download PDFInfo
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- CN105672381B CN105672381B CN201610225497.6A CN201610225497A CN105672381B CN 105672381 B CN105672381 B CN 105672381B CN 201610225497 A CN201610225497 A CN 201610225497A CN 105672381 B CN105672381 B CN 105672381B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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Abstract
The present invention relates to a kind of ultrasonic wave pile bottom sediment thickness detection apparatus and detection methods, the device includes columnar steel reinforcement cage, ultrasonic treatment unit, measurement assembly, measurement pipe, holder, ultrasonic transmission device and ultrasonic probe, ultrasonic receiver, and measurement assembly includes measurement rope with a scale, measures hammer and pulley；Measurement pipe is parallel with reinforcing bar lorhumb line, and measurement pipe can be relative to steel reinforcement cage vertical shift；It measures rope one end and is connected with hammer is measured, measure the rope other end and bypass pulley.This approach includes the following steps：Step 1：By steel reinforcement cage press-in hole bottom, designed elevation or less should be located at by measuring pipe end；Step 2：Select a pair of of measurement pipe as Measurement channel, a pair, which is measured hammer, to be respectively put into 2 measurement pipes；Step 3：Make measurement hammer is synchronous to decline.Device or method using the present invention can not only precisely measure out pile bottom sediment thickness, can also understand sediment shape by the different Measurement channel of selection, can comprehensive understanding pile quality.
Description
Technical field
The present invention relates to detection technique field more particularly to a kind of ultrasonic wave pile bottom sediment thickness detection apparatus and detection sides
Method.
Background technology
Pile bottom sediment is an important factor for influencing bearing capacity of pile foundation.Blocked up sediment will generate " cushion " effect, to drop
Low pile bearing capacity increases pile body sedimentation.Studies have shown that when sediment thickness increases, and when remitted its fury, end resistance maximum loss
Up to 80% or more, and sediment is thicker, and bearing capacity of pile foundation loss is bigger.Cast-in-situ bored pile bottom hole sediment thickness is as pore-forming matter
One important indicator of amount, and its control and measurement measure are to ensure the pass of Construction Quality for Bore Filling Pile and bearing capacity of pile foundation
One of key measure.Therefore existing respective country standards and norms clearly require sediment thickness control.When stake is to rub
When power is main, sediment allows thickness to be not greater than 100mm, when stake is main with bottom bearing, is not greater than 50mm；End is held
Stake, bottom hole sediment thickness are not more than 50mm.150mm is not more than for Piles for Friction Piles.Existing sediment thickness detection relies primarily on
Engineer's feel and experience carry out judgement sediment thickness, the precision of detection it is difficult to ensure that.
Spread speed of the ultrasonic wave in different medium is different, when ultrasonic probe is by way of the interface of different medium, such as
Air and mud interface, mud and sediment interface, sediment and stake base rock interface, show as several bright on the graph
Aobvious turning point.
Invention content
The present invention is directed to the deficiency of existing sediment detection technique, propose a kind of ultrasonic wave pile bottom sediment thickness detection apparatus and
Detection method can accurately detect pile bottom sediment thickness by ultrasonic wave principle, and can solve pile bottom sediment shape.
In order to achieve the above objectives, the technical solution adopted by the present invention is as follows：
A kind of ultrasonic wave pile bottom sediment thickness detection apparatus, including columnar steel reinforcement cage, ultrasonic treatment unit, measurement group
Part, measurement pipe, holder, ultrasonic transmission device and ultrasonic probe, ultrasonic receiver, the measurement assembly include measurement rope with a scale,
Measure hammer and pulley；The measurement pipe has even number, measurement pipe at least four, the measurement pipe to be laid in steel reinforcement cage outer wall, surveys
Buret is parallel with reinforcing bar lorhumb line, and measurement pipe can be relative to steel reinforcement cage vertical shift；Described measurement rope one end is connected with hammer is measured,
It measures the rope other end and bypasses pulley, the pulley is set on holder, and pulley can be moved relative to support level, and measurement hammer, which is located at, to be surveyed
In buret, the measurement assembly has a pair, ultrasonic transmission device and ultrasonic probe, ultrasonic receiver to be respectively arranged on two and measure in hammer,
Ultrasonic transmission device and ultrasonic probe, ultrasonic receiver are electrically connected with ultrasonic treatment unit.
Preferably, the steel reinforcement cage outer wall is equipped with limit annulus, and the measurement pipe is located in limit annulus, measures pipe end
Sealing.End seal is mainly for preventing measurement pipe from being blocked by sediment.
Preferably, the measurement pipe end is in coniform.
Further, the measurement, which is hammered into shape to be equipped with, measures hammer opening, and measurement peen portion is equipped with to be passed through for ultrasonic probe lines
Through-hole, through-hole connection measures hammer opening, and the ultrasonic transmission device and ultrasonic probe, ultrasonic receiver, which are set to, to be measured in hammer opening.
Further, the measurement hammer is cylinder.
Preferably, the measurement hammer outer wall is equipped with ball.Ball reduces the resistance to sliding measured during hammer declines.
Further, the rope that measures is connected with the center in measurement peen face.
Further, the ball is longitudinally equipped with 3 rows, in addition to equipped with the side for measuring hammer opening, excess-three side wall point
Not She You row's ball, the ball, measure hammer opening is arranged at equal intervals in circumferencial direction.
The method for detecting sediment thickness using above-mentioned detection device, includes the following steps：
Step 1：By steel reinforcement cage press-in hole bottom, the verticality of steel reinforcement cage is adjusted, pipe end will be measured and squeeze into bottom hole, measurement pipe
End should be located at designed elevation or less；
Step 2：It selects two measurement pipes as Measurement channel, by Stent Implantation in Kong Ding, a pair is measured into hammer and is put respectively
Enter in two measurement pipes, adjustable pulley makes measurement rope be overlapped with the axis of measurement pipe；
Step 3：Making two to measure, hammer is synchronous to be declined, and the interface of stake bottom and sediment is judged by ultrasonic treatment unit,
By measuring fathom amount sediment thickness；
Step 4：Another pair measurement pipe is selected, step 2 and 3 is repeated.
Further, in the step 2, the axis of steel reinforcement cage is in the plane where two measurement pipes.
Compared with prior art, the invention has the advantages that：
Device or method using the present invention can not only precisely measure out stake by selecting different Measurement channels
Bottom sediment thickness can also understand sediment shape, can comprehensive understanding pile quality.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of steel reinforcement cage；
Fig. 3 is the front view for measuring hammer；
Fig. 4 is the vertical view for measuring hammer；
In figure：1- measure hammer, 2- measurement pipes, 3- measurement ropes with a scale, 4- ultrasonic treatment units, 5- pulleys, 6- holders,
7- sediments, 8- tapered distal ends, 9- steel reinforcement cages, 10- through-holes, 11- balls, 12- measure hammer opening, 13- ultrasonic probe lines.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with attached drawing, to the present invention into
Row is further described.
As shown in Figure 1, ultrasonic wave pile bottom sediment thickness detection apparatus disclosed by the invention, including it is columnar steel reinforcement cage 9, super
Sonicated device 4, measurement assembly, measurement pipe 2, holder 6, ultrasonic transmission device and ultrasonic probe, ultrasonic receiver, measurement assembly
Including measurement rope 3 with a scale, measure hammer 1 and pulley 5；Measurement pipe 2 is even number, 2 at least four of measurement pipe, and measurement pipe 2 is uniformly distributed
Set on 9 outer wall of steel reinforcement cage, measurement pipe 2 is parallel with 9 axis of steel reinforcement cage, and measurement pipe 2 can be relative to 9 vertical shift of steel reinforcement cage；It measures
3 one end of restricting 1 are connected with hammer is measured, and measure 3 other ends of rope and are connected with wire stranding machine around pulley 5, pulley 5 is on holder 6, pulley
5 can move horizontally relative to holder 6, measure hammer 1 and are located in measurement pipe 2, and measurement assembly has a pair, ultrasonic transmission device and super
Acoustic receiver device is respectively arranged on two and measures in hammer 1, ultrasonic transmission device and ultrasonic probe, ultrasonic receiver and ultrasonication
Device electrically connects.
Preferably, as shown in Fig. 2, 9 outer wall of steel reinforcement cage is equipped with limit annulus, measurement pipe 2 is located in limit annulus, measurement pipe
2 end seals.2 end of measurement pipe is in coniform, forms tapered distal end 8 in 2 bottom of measurement pipe, is convenient for measuring pipe 2 and is pierced into rock mass
The inside.Further, limit annulus is welded with steel reinforcement cage 9.Further, holder 6 includes horizontal part and support portion, horizontal part two
End is equipped with support portion, in use, by 6 frame of holder in Kong Ding, above aperture, pulley 5 is located on horizontal part horizontal position.
Further, as shown in Figure 3,4, it measures hammer 1 and is equipped with measurement hammer opening 12, measure and be equipped with for ultrasound at the top of hammer 1
The through-hole 10 that wave probe wire 13 passes through, the connection of through-hole 10 measure hammer opening 12, ultrasonic transmission device and ultrasonic probe, ultrasonic receiver
It is open in 12 set on hammer is measured.Further, hammer 1 is measured as cylinder, is measured 1 outer wall of hammer and is equipped with ball 14, it is preferred that is longitudinal
Equipped with 3 rows, in addition to equipped with the side for measuring hammer opening 12, excess-three side wall is respectively equipped with row's ball 14, and ball 14 measures
Hammer opening 12 is arranged at equal intervals in circumferencial direction.The outer wall of ball 14 is rolled with the inner wall of measurement pipe 2 to be coordinated, and can not only be reduced
It measures the frictional force in 1 sliding process of hammer and may further ensure that measurement hammer 1 slides straight down simultaneously.Further, it measures
Rope 3 is connected with the center for measuring 1 top surface of hammer；Preferably, the connection of through-hole 10 measures the center of 1 top surface of hammer, ultrasonic probe lines 13
It follows measurement rope 3 to bypass pulley 5 and wire stranding machine together, is finally connected with ultrasonic treatment unit 4.
The method for detecting sediment thickness using above-mentioned detection device, includes the following steps：
Step 1：After the completion of clinkerer makees, it will be at least attached with the 9 press-in hole bottom of steel reinforcement cage of 4 measurement pipes 2, adjust reinforcing bar
Bottom hole is squeezed into 2 end of measurement pipe by the verticality of cage 9, and 2 end of measurement pipe should be located at designed elevation or less.Preferably, measurement pipe
The piercing depth of 2 ends is more than the vertical size for measuring hammer.
Step 2：It selects two measurement pipes 2 as Measurement channel, holder 6 is placed in hole top, a pair is measured and hammers 1 difference into shape
It is put into two measurement pipes 2, adjustable pulley 5, measurement rope 3 and the axis of measurement pipe 2 is made to overlap.Further, in step 2, steel
The axis of muscle cage 9 is located in the plane at two 2 places of measurement pipe.
Step 3：So that a pair of hammer 1 that measures is synchronized decline, the boundary at stake bottom and sediment 7 is judged by ultrasonic treatment unit 4
Face measures 7 thickness of sediment by measuring rope 3.Since spread speed of the ultrasonic wave in different medium is different, ultrasonic probe way
When interface through different medium, as air and mud interface, mud and sediment interface, sediment and stake base rock are demarcated
Face shows as several apparent turning points on the graph, while different turning points correspond to different measurement line scales.By turning
Scale is poor between break, so that it may calculate 7 thickness of sediment.
Step 4：Another pair measurement pipe 2 is selected, step 2 and 3 is repeated.
Device or method using the present invention can not only precisely measure out stake by selecting different Measurement channels
Bottom sediment thickness can also understand sediment in the distribution situation at stake bottom, know sediment geometry, help comprehensive to understand
Pile quality.
Certainly, the present invention can also have other numerous embodiments, without deviating from the spirit and substance of the present invention,
Those skilled in the art can make various corresponding change and deformations, but these corresponding changes and change according to the present invention
Shape should all belong to the protection domain of appended claims of the invention.
Claims (7)
1. a kind of ultrasonic wave pile bottom sediment thickness detection apparatus, it is characterised in that:At columnar steel reinforcement cage (9), ultrasonic wave
Manage device (4), measurement assembly, measurement pipe (2), holder (6), ultrasonic transmission device and ultrasonic probe, ultrasonic receiver, the measurement
Component includes measurement rope (3) with a scale, measures hammer (1) and pulley (5)；The measurement pipe (2) has even number, measurement pipe (2)
At least 4, the measurement pipe (2) is laid in steel reinforcement cage (9) outer wall, and measurement pipe (2) is parallel with steel reinforcement cage (9) axis, surveys
Buret (2) can be equipped with limit annulus, the measurement pipe (2) relative to steel reinforcement cage (9) vertical shift, steel reinforcement cage (9) outer wall
In limit annulus；Described measurement rope (3) one end is connected with hammer (1) is measured, and measures rope (3) other end and bypasses pulley (5), institute
Pulley (5) is stated on holder (6), pulley (5) can be moved horizontally relative to holder (6), measured hammer (1) and be located at measurement pipe (2)
In, the measurement assembly has a pair, ultrasonic transmission device and ultrasonic probe, ultrasonic receiver to be respectively arranged on two and measure in hammer (1),
Ultrasonic transmission device and ultrasonic probe, ultrasonic receiver are electrically connected with ultrasonic treatment unit；Measurement pipe (2) end seal, measurement pipe
(2) end is in coniform；Described measurement hammer (1) outer wall is equipped with ball (11).
2. detection device according to claim 1, it is characterised in that：The measurement hammer (1), which is equipped with, measures hammer opening
(12), the through-hole (10) for being equipped at the top of hammer (1) and being passed through for ultrasonic probe lines (13) is measured, through-hole (10) connection measures hammer opening
(12), the ultrasonic transmission device is located therein in the measurement for measuring hammer (1) hammer opening (12), ultrasonic probe, ultrasonic receiver
In the measurement hammer opening (12) of another measurement hammer (1).
3. detection device according to claim 1 or 2, it is characterised in that：The measurement hammer (1) is cylinder.
4. detection device according to claim 1 or 2, it is characterised in that：The measurement rope (3) and measurement hammer (1) top surface
Center be connected.
5. detection device according to claim 1, it is characterised in that：The ball (11) is longitudinally equipped with 3 rows, is surveyed except being equipped with
Outside the side of amount hammer opening (12), excess-three side wall is respectively equipped with row's ball (11), and the ball (11) measures hammer opening
(12) it is arranged at equal intervals in circumferencial direction.
6. using the method for the detection device detection sediment thickness described in any one of Claims 1 to 55 claim, feature exists
In：Include the following steps：
Step 1：By steel reinforcement cage (9) press-in hole bottom, bottom hole is squeezed into measurement pipe (2) end by the verticality of adjustment steel reinforcement cage (9),
Measurement pipe (2) end should be located at designed elevation or less；
Step 2：It selects two measurement pipes (2) as Measurement channel, holder (6) is placed in hole top, a pair is measured and is hammered into shape (1) point
It is not put into two measurement pipes (2), adjustable pulley (5) makes measurement rope (3) and the axis of measurement pipe (2) overlap；
Step 3：Making two to measure, hammer (1) is synchronous to be declined, and judges point of the stake bottom with sediment (7) by ultrasonic treatment unit (4)
Interface measures sediment (7) thickness by measurement rope (3)；
Step 4：Another pair measurement pipe (2) is selected, step 2 and 3 is repeated.
7. according to the method described in claim 6, it is characterized in that：In the step 2, the axis of steel reinforcement cage (9) is located at two
In plane where measurement pipe (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610225497.6A CN105672381B (en) | 2016-04-12 | 2016-04-12 | A kind of ultrasonic wave pile bottom sediment thickness detection apparatus and detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610225497.6A CN105672381B (en) | 2016-04-12 | 2016-04-12 | A kind of ultrasonic wave pile bottom sediment thickness detection apparatus and detection method |
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| Publication Number | Publication Date |
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| CN105672381A CN105672381A (en) | 2016-06-15 |
| CN105672381B true CN105672381B (en) | 2018-08-03 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106948387A (en) * | 2017-04-17 | 2017-07-14 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for detecting length of operated bridge pile foundation |
| CN111677019A (en) * | 2020-05-20 | 2020-09-18 | 甘肃众联建设工程科技有限公司 | Pile end sediment detection and treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1755016A (en) * | 2004-09-28 | 2006-04-05 | 上海市第五建筑有限公司 | Construction method for installing plastic sounding pipe |
| CN101418579A (en) * | 2007-10-24 | 2009-04-29 | 上海隧道工程股份有限公司 | The detection method of diaphragm wall clay seam |
| CN104776818A (en) * | 2015-01-13 | 2015-07-15 | 西南石油大学 | Ultrasonic measurement instrument for pile bottom sediment thickness |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013008621B4 (en) * | 2013-05-21 | 2016-08-04 | Bauer Spezialtiefbau Gmbh | Apparatus and method for supervised production of a high pressure injection body |
| JP5619263B1 (en) * | 2013-11-20 | 2014-11-05 | 大裕株式会社 | Loading test equipment |
| CN104532886B (en) * | 2014-12-26 | 2016-05-04 | 中国建筑西南勘察设计研究院有限公司 | A kind of bored concrete pile pile bottom sediment and pile end groundwork checkout gear and method |
| CN205475375U (en) * | 2016-04-12 | 2016-08-17 | 西南石油大学 | Sediment thickness detection device at bottom of ultrasonic wave stake |
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- 2016-04-12 CN CN201610225497.6A patent/CN105672381B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1755016A (en) * | 2004-09-28 | 2006-04-05 | 上海市第五建筑有限公司 | Construction method for installing plastic sounding pipe |
| CN101418579A (en) * | 2007-10-24 | 2009-04-29 | 上海隧道工程股份有限公司 | The detection method of diaphragm wall clay seam |
| CN104776818A (en) * | 2015-01-13 | 2015-07-15 | 西南石油大学 | Ultrasonic measurement instrument for pile bottom sediment thickness |
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