CN201884023U - Drill deposit thickness ultrasonic measurement system - Google Patents
Drill deposit thickness ultrasonic measurement system Download PDFInfo
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- CN201884023U CN201884023U CN2010205350530U CN201020535053U CN201884023U CN 201884023 U CN201884023 U CN 201884023U CN 2010205350530 U CN2010205350530 U CN 2010205350530U CN 201020535053 U CN201020535053 U CN 201020535053U CN 201884023 U CN201884023 U CN 201884023U
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- sediment
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- thickness
- hole
- ultrasonic
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Abstract
The utility model relates to a drill deposit thickness ultrasonic measurement system, comprising a logging tool and an up-hole tool, wherein the logging tool is connected with the up-hole tool by a cable, an ultrasonic transducer is arranged below the logging tool and can receive the reflected wave signal of first, second reflection surfaces each when emitting the ultrasonic signal downwards and convey the emitted signal and received reflected wave signal to the up-hole tool by the cable and the up-hole tool processes, analyses the emitted signal and the reflected wave signal from the logging tool and calculates the thickness of the deposit. Therefore, the drill deposit thickness ultrasonic measurement system is provided to accurately describe the shape of the hole bottom and accurately measure the deposit thickness.
Description
Technical field
The utility model relates to a kind of checkout equipment, particularly a kind of system that the boring sediment thickness is carried out ultrasonic measurement that is applicable to.
Background technology
Bored pile has characteristics such as bearing capacity height, easy construction, is widely adopted in the infrastructures such as road, bridge, harbour, highrise building.Its construction technology is to utilize auger at stake position pore-forming, puts into the cage of reinforcement in situ pile that forms of concrete placing more then in the stake hole.Boring is a pith in the concrete spouting pile driving construction, as if problems such as its hole that occurs collapsing, undergauge, stake hole deflection, sediment exceed standard, will directly have influence on pile quality and cause pile capacity to descend, and becomes workmanship and safe big hidden danger.
At present, domestic sediment detection method mainly contains the weight method and gets the core method.Before the way of weight method was concreting, hand-held cable was the weight that hangs about 2～3kg band awl point, puts at the bottom of the hole, surveys the existence of sediment with feel; Get the core method at the concreting pile and after reaching the initial length of time,, and get core, have or not the existence of sediment mud layer and judge its thickness with getting the core observation above the sharp degree of depth of stake in the central axis boring of stake.Also the someone proposes the pressure probe method, promptly hang is to foot of hole under the flat board, after being pressurized to certain pressure then, write down the dull and stereotyped degree of depth, think the slag top herein, go in the sediment with surveying bore spine at the bottom of the slag more afterwards, after institute's applied pressure has arrived certain value, think to have touched at the bottom of the slag that the degree of depth of awl surveyed in record, can obtain sediment thickness by the degree of depth at the bottom of slag top and the slag.In addition, people also attempt to measure sediment by means of geophysical log technology (as the interface of using microelectrode system to survey to ask sediment at the bottom of the hole etc.) or with static sounding.
But there is drawback in these these detection methods: 1. the weight method is surveyed with feel, does not only have objective basis but also do not have reliable quantitative criteria, not only can vary with each individual, and the difference between can causing designing, construct, managing is judged and arguement; 2. get the core method, though intuitive and reliable, belong to afterwards and judging; 3. the threshold pressure of pressure probe method at the bottom of to slag top slag can be formed because of sediment, geological condition changes at the bottom of the hole, determines that the threshold pressure under the concrete condition is a difficult point; 4. geophysical log technology or measure the method for sediment with static sounding, need to have between sediment and the mud physical parameter of tangible interface or big-difference, but in fact because the accumulation situation of sediment at the bottom of the hole is different because of foundation soil, also because of manually pulping (swell soil) or natural pulping are different, therefore between sediment and mud, do not have tangible interface, more do not have visibly different physical parameter can be used for differentiating and distinguishing.Therefore these methods far do not reach the purpose of accurate measurement sediment thickness, and this is a very big hidden danger to large-diameter deep pile foundation construction and workmanship.
The utility model content
At the defective of above-mentioned prior art, the purpose of this utility model provides the shape at the bottom of a kind of accurate description hole, measures the boring sediment thickness ultrasound measurement system of the thickness of sediment exactly.
For achieving the above object, the utility model adopts following technical scheme:
A kind of boring sediment thickness ultrasound measurement system, comprise down-hole instrument and aboveground instrument, described down-hole instrument connects aboveground instrument by cable, the bottom of described down-hole instrument is provided with ultrasonic transducer, ultrasonic signal of the downward every emission of ultrasonic transducer can receive the reflection wave signal of first, second two reflectings surface, and the reflection wave signal that will transmit and receive is sent to described aboveground instrument by described cable, described aboveground instrument sends described down-hole instrument and transmits and reflection wave signal is handled, analyzed, and calculates the thickness of sediment.
Boring sediment thickness ultrasound measurement system of the present utility model, wherein said aboveground instrument comprises floor-treating device, the conditioning device, analog-digital commutator, digital signal processing device and data processing, drawing, demonstration, storage and the printing equipment that connect successively, and described conditioning device, described analog-digital commutator, described digital signal processing device and described data processing, drawing, demonstration, storage are connected described floor-treating device respectively with printing equipment.
Boring sediment thickness ultrasound measurement system of the present utility model, wherein said down-hole instrument comprises the generation device that transmits that connects described floor-treating device, the power driving device that connects the described generation device that transmits, and connects the transmitting transducer device and the receiving transducer device that is connected described conditioning device of described power driving device.
Boring sediment thickness ultrasound measurement system of the present utility model, wherein first reflecting surface is the interface of mud layer and sediment layer, described second reflecting surface is the interface of mud layer and sediment layer.
Boring sediment thickness ultrasound measurement system of the present utility model, wherein said sediment thickness is H
2, H
2=0.5*V
2* (t
2-t
1), t wherein
1Receive the time that reflects echo-signal by first reflecting surface, t for ultrasonic from being transmitted into
2For from being transmitted into the time that receives the echo-signal that reflects by second reflecting surface, V
1Be the velocity of sound ultrasonic in the mud, V
2Be the velocity of sound in the sediment.
Boring sediment thickness ultrasound measurement system of the present utility model, wherein said hyperacoustic speed V
2Adopt following formula to obtain: V
2=2*d/t, wherein d installs in the container for the part sediment of described sediment layer is released, and with the thickness that ruler measurement obtains, t transmits and receives ultrasonic wave for ultrasonic transducer is close to the sediment upper surface, from being transmitted into the time of reception.
Boring sediment thickness ultrasound measurement system of the present utility model, the repeatedly data that wherein said aboveground instrument is obtained described down-hole instrument are averaged as the sediment thickness that finally obtains.
Boring sediment thickness ultrasound measurement system of the present utility model, wherein said aboveground instrument also show the shape of described down-hole instrument at the bottom of a plurality of locational measurement results are the hole.
Boring sediment thickness ultrasound measurement system of the present utility model, wherein said down-hole instrument connects winch by the cable that passes pulley, described winch connects aboveground instrument by described cable, described pulley be arranged on boring directly over.
Adopt boring sediment thickness ultrasound measurement system of the present utility model,, describe the shape at the bottom of the hole more accurately, also determined the thickness of sediment more exactly by repeatedly measuring.
Description of drawings
Fig. 1 is the utility model boring sediment thickness ultrasound measurement system structural principle schematic diagram;
Fig. 2 is the structured flowchart of the utility model boring aboveground instrument of sediment thickness ultrasound measurement system and down-hole instrument.
The specific embodiment
Be elaborated below in conjunction with the embodiment of accompanying drawing to the utility model boring sediment thickness ultrasound measurement system.
Referring to Fig. 1 and Fig. 2, boring sediment thickness ultrasound measurement system of the present utility model comprises down-hole instrument 1 and aboveground instrument 2.The cable 4 of down-hole instrument 1 by passing pulley 3 connects winches 5, transfers and rise down-hole instrument 1 by winch 5, and winch 5 connects aboveground instrument 2 by cable 4, pulley 3 be arranged on boring directly over, wherein cable 4 is preferably armored cable.
Aboveground instrument 2 comprises floor-treating device 201, the conditioning device 202 of Lian Jieing successively, analog-digital commutator 203, digital signal processing device 204 and data are handled, draw, show, storage and printing equipment 205, more than device connects floor-treating device 201 respectively, the bottom of down-hole instrument 1 is provided with ultrasonic transducer, comprise the generation device 101 that transmits that connects floor-treating device 201 by cable 4, the power driving device 102 that connects the generation device 101 that transmits, the transmitting transducer device 103 and the receiving transducer device 104 that is connected conditioning device 204 of connection power driving device 102.Under the control of floor-treating device 201, the generation device 101 of transmitting produces ultrasound transmit signal, and after power driving device 102 carries out power amplification, drives transmitting transducer device 103 and launches ultrasonic pulsative signal to sediment; The back wave at sediment interface is received sends into conditioning device 202 by cable 4 after transducer apparatus 104 receives, signal conditions such as the amplification of 202 pairs of signals of process conditioning device, filtering, by analog-digital commutator 203 analog signal conversion is become data signal again and send into digital signal processing device 204, ultrasonic signal after 204 pairs of digitlizations of digital signal processing device carries out more senior processing, as FFT, digital filtering, relevant, the time become amplification, pulse compression etc., thereby the acquisition relevant parameters is as the sound time difference, wave amplitude, attenuation factor etc.; Data are handled the back and are exported the result by data processing, drawing, demonstration, storage and printing equipment 205 with forms such as image, forms.Transmitting transducer device 103 wherein and receiving transducer device 104 also can be the two-in-one transducers of transmitting-receiving.
The operation of floor-treating device 201 each devices of control, form, parameter that control transmits, parameters such as control power amplification multiple, echo multiplication factor and filter center frequency, bandwidth; Also to carry out data interaction simultaneously with modules such as Digital Signal Processing, data processing.
Boring top is the mud of certain weight proportion abrim, and sediment is being precipitated in the bottom, and its thickness is designated as H
2, the hole bottom face generally is rock or hard soil layer.
Boring sediment thickness ultrasound measurement system of the present utility model is set, and the course of work of native system is:
Directly over boring, fix pulley 3, cable 4 walk around pulley 3 and hang be down-hole instrument 1 transfer in the boring, treat (to determine according to design hole depth and the length of providing cable 4, be designated as H after down-hole instrument 1 is transferred to sediment top certain distance
1), stop to transfer also static;
The ultrasonic transducer of down-hole instrument 1 begins to foot of hole emission ultrasonic wave, ultrasonic wave runs into mud layer 6 and returns to be received by ultrasonic transducer as the first reflection ripple with the interface back reflection of sediment layer 8, treated circuit and change-over circuit are sent to aboveground instrument 2 through cable 4 after handling; The interface that another part ultrasonic wave passes mud layer 6 and sediment layer 8 arrive sediment layer 8 and 9 interface back reflection at the bottom of the hole return as the second time back wave received by ultrasonic transducer, through after treatment circuit and the change-over circuit processing, be sent to aboveground instrument 2 again through cable 4;
2 pairs of reflected signals that transmit and receive of aboveground instrument are handled, are analyzed, and obtain ultrasonicly to receive the time t that is reflected echo-signal by first reflecting surface from being transmitted into
1Obtain the time t that receives the echo-signal that reflects by second surface of emission from being transmitted into again
2Suppose that the velocity of sound ultrasonic in the mud is V
1, the velocity of sound is V in the sediment
2, then can obtain sediment thickness, H
2=0.5*V
2* (t
2-t
1).
Determining of sediment medium velocity can draw with the mode of demarcating, and wherein a kind of method is: can release the part sediment at the bottom of the hole in clear hole, utilize these sediments that are extracted into ground to demarcate ultrasonic velocity of sound V therein
2At first sediment is put in the container, measures its thickness d with modes such as rulers, transducer is close to the sediment upper surface, emission receives ultrasonic wave, suppose from the time that is transmitted into the experience that receives Bottom echo be t, then the velocity of sound is: V
2=2*d/t.
Down-hole instrument 1 repeats to send the repeated ultrasonic ripple and measures on a position, 2 pairs in aboveground instrument repeatedly data is averaged as the sediment thickness that finally obtains.
After a position has been surveyed, adjust the position of down-hole instrument 1, carry out the measurement of another position sediment thickness according to the method described above, and utilize down-hole instrument 1 shape of 9 at the bottom of a plurality of locational measurement results are the hole to show, also can determine sediment thickness more accurately simultaneously by these data.
Above embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that the common engineers and technicians in this area make the technical solution of the utility model all should fall in the definite protection domain of claims of the present utility model.
Claims (3)
1. boring sediment thickness ultrasound measurement system, comprise down-hole instrument (1) and aboveground instrument (2), described down-hole instrument (1) connects aboveground instrument (2) by cable (4), it is characterized in that, described aboveground instrument (2) comprises floor-treating device (201), the conditioning device of Lian Jieing (202) successively, analog-digital commutator (203), digital signal processing device (204) and data are handled, draw, show, storage and printing equipment (205), described conditioning device (202), described analog-digital commutator (203), described digital signal processing device (204) and described data are handled, draw, show, storage is connected described floor-treating device (201) respectively with printing equipment (205), the bottom of described down-hole instrument (1) is provided with ultrasonic transducer, described ultrasonic transducer comprises the generation device that transmits (101) that connects described floor-treating device (201), the power driving device (102) that connects the described generation device that transmits (101), the transmitting transducer device (103) and the receiving transducer device (104) that is connected described conditioning device (202) that connect described power driving device (102), ultrasonic signal of the downward every emission of described ultrasonic transducer can receive first, the reflection wave signal of the second two reflectings surface, and the reflection wave signal that will transmit and receive is sent to described aboveground instrument (2) by described cable (4), and described aboveground instrument (2) is according to formula H
2=0.5*V
2* (t
2-t
1) described down-hole instrument (1) sent transmit and reflection wave signal is handled, analyzed, calculate the thickness of sediment, wherein, H
2Be sediment thickness, t
1Receive the time that reflects echo-signal by first reflecting surface, t for ultrasonic from being transmitted into
2For from being transmitted into the time that receives the echo-signal that reflects by second reflecting surface, V
1Be the velocity of sound ultrasonic in the mud, V
2Be the velocity of sound in the sediment, described V
2Adopt following formula to obtain: V
2=2*d/t, wherein, d installs in the container for the part sediment of sediment layer (8) is released, and with the thickness that ruler measurement obtains, t transmits and receives ultrasonic wave for ultrasonic transducer is close to the sediment upper surface, from being transmitted into the time of reception.
2. boring sediment thickness ultrasound measurement system according to claim 1, it is characterized in that, described down-hole instrument (1) connects winch (5) by the cable (4) that passes pulley (3), described winch (5) connects aboveground instrument (2) by described cable (4), described pulley (3) be arranged on boring directly over, described first reflecting surface is the interface of mud layer (6) and sediment layer (8), and described second reflecting surface is the interface of mud layer (6) and sediment layer (8).
3. boring sediment thickness ultrasound measurement system according to claim 2 is characterized in that, the repeatedly sediment thickness data that described aboveground instrument (2) is obtained described down-hole instrument (1) are averaged as the sediment thickness that finally obtains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205350530U CN201884023U (en) | 2010-09-19 | 2010-09-19 | Drill deposit thickness ultrasonic measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205350530U CN201884023U (en) | 2010-09-19 | 2010-09-19 | Drill deposit thickness ultrasonic measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884023U true CN201884023U (en) | 2011-06-29 |
Family
ID=44181563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205350530U Expired - Lifetime CN201884023U (en) | 2010-09-19 | 2010-09-19 | Drill deposit thickness ultrasonic measurement system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147740A (en) * | 2012-04-01 | 2013-06-12 | 贵州航天凯山石油仪器有限公司 | Method for testing liquid level echo time |
| CN104776818A (en) * | 2015-01-13 | 2015-07-15 | 西南石油大学 | Ultrasonic measurement instrument for pile bottom sediment thickness |
| CN104790942A (en) * | 2015-04-18 | 2015-07-22 | 山东科技大学 | Ultrasonic logging instrument for achieving carrier communication through ultrasonic transmission power circuit |
| CN105317434A (en) * | 2015-10-21 | 2016-02-10 | 同济大学 | Borehole ultrasonic reflection three-dimensional detection apparatus and method |
| CN105588523A (en) * | 2016-01-25 | 2016-05-18 | 国网浙江慈溪市供电公司 | Measuring method and measuring device |
| CN110185436A (en) * | 2019-06-18 | 2019-08-30 | 武汉天宸伟业物探科技有限公司 | The ultrasonic pore-forming grooving detector and method of real-time online isochronous printing |
-
2010
- 2010-09-19 CN CN2010205350530U patent/CN201884023U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147740A (en) * | 2012-04-01 | 2013-06-12 | 贵州航天凯山石油仪器有限公司 | Method for testing liquid level echo time |
| CN103147740B (en) * | 2012-04-01 | 2015-11-04 | 贵州航天凯山石油仪器有限公司 | A kind of method of testing the liquid level echo time |
| CN104776818A (en) * | 2015-01-13 | 2015-07-15 | 西南石油大学 | Ultrasonic measurement instrument for pile bottom sediment thickness |
| CN104790942A (en) * | 2015-04-18 | 2015-07-22 | 山东科技大学 | Ultrasonic logging instrument for achieving carrier communication through ultrasonic transmission power circuit |
| CN104790942B (en) * | 2015-04-18 | 2019-01-22 | 山东科技大学 | A kind of ultrasonic logging instrument for realizing carrier communication using ultrasound emission power circuit |
| CN105317434A (en) * | 2015-10-21 | 2016-02-10 | 同济大学 | Borehole ultrasonic reflection three-dimensional detection apparatus and method |
| CN105588523A (en) * | 2016-01-25 | 2016-05-18 | 国网浙江慈溪市供电公司 | Measuring method and measuring device |
| CN110185436A (en) * | 2019-06-18 | 2019-08-30 | 武汉天宸伟业物探科技有限公司 | The ultrasonic pore-forming grooving detector and method of real-time online isochronous printing |
| CN110185436B (en) * | 2019-06-18 | 2023-08-18 | 武汉天宸伟业物探科技有限公司 | Ultrasonic pore-forming and grooving detector and method for real-time online synchronous printing |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |
|
| CX01 | Expiry of patent term |