CN206583430U - Cast-in-situ bored pile sediment thickness detection device - Google Patents
Cast-in-situ bored pile sediment thickness detection device Download PDFInfo
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- CN206583430U CN206583430U CN201720341138.7U CN201720341138U CN206583430U CN 206583430 U CN206583430 U CN 206583430U CN 201720341138 U CN201720341138 U CN 201720341138U CN 206583430 U CN206583430 U CN 206583430U
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Abstract
A kind of cast-in-situ bored pile sediment thickness detection device, including measurement bar, the measurement bar includes the reference section and measurement portion being wholely set, the reference section includes the first reference pressure probe and the second reference pressure probe, the measurement portion includes at least three measurement pressure probes, the free end of the reference section is provided with the display screen of the above-mentioned some probes of a connection, reference section is normally at hole top, liquid positioned at hole top does not have sediment when general, popped one's head in by the first reference pressure probe and the second reference pressure, the pressure value of this two point in hole top is measured respectively, by making the difference, it can obtain pressure value of the unit distance without sediment liquid, and made the difference each other positioned at adjacent two of multiple measurement pressure probes of measurement portion, the thickness of sediment can be calculated by the difference of difference, can be by control errors in minimum by such a method.
Description
Technical field
The utility model is related to job site detection device, and more particularly to a kind of cast-in-situ bored pile sediment thickness detection is set
It is standby.
Background technology
Cast-in-situ bored pile has the features such as high capacity, easy construction, and the basis such as road, bridge, harbour, skyscraper is built
If in be widely adopted.Its construction technology is, in stake position pore-forming, framework of steel reinforcement to be then put into stake holes and is filled again using drilling machine
The in situ pile of concrete.Drilling is a pith in Concrete Grouting Pale, if it collapse hole, contracting occurs
Footpath, stake holes deflection, the problems such as sediment is exceeded, pile quality will be directly influenced and cause pile bearing capacity to decline, as engineering matter
The big hidden danger of amount and safety.
At present, domestic sediment detection method mainly has weight method and core sample method.Before the way of weight method is casting concrete,
A weights of the about 2~3kg with cone hangs in hand-held cable system, is put into bottom hole, and the presence of sediment is detected with feel；Core sample method is being poured
Concrete pile is simultaneously reached after initial age, is drilled in the central axis of stake, and coring exceedes pile top depth, is had with coring observation
Exist without sediment mud layer and judge its thickness.Also it has been proposed that pressure detection method, that is, it is to arrive foot of hole under a flat board to hang,
It is then pressurized to after certain pressure, records flat board depth, slag top is considered herein, enters sediment with slag bottom detection bore spine again afterwards
In, after pressure applied has arrived some value, it is believed that touched slag bottom, the depth of record detection cone, by slag top and slag bottom
Depth can obtain sediment thickness.In addition, people are intended to (such as survey using microelectrode system by means of Geophysical Logging and ask hole
Interface of bottom sediment etc.) or with static sounding determine sediment.
But there is drawback in these detection methods：1. weight method is detected with feel, not only without objective basis but also without reliable
Quantitative criteria, can not only vary with each individual, and can cause to design, construct, different between management judge and arguement；2. coring side
Method, though intuitive and reliable, category judges afterwards；3. pressure detection method can be because of sediment composition, bottom hole to the threshold pressure at slag top slag bottom
Geological state and change, it is difficult point to determine the threshold pressure under concrete condition；4. Geophysical Logging or with static(al) touch
Detection determines the method for sediment, it is necessary to there is the physical parameter of obvious interface or big difference between sediment and mud, but actually by
It is different because of foundation soil in the accumulation situation of bottom hole in sediment, it is also different because of artificial pulping (bentonite) or natural pulping, therefore
There is no obvious interface between sediment and mud, more can be used for differentiating and distinguish without visibly different physical parameter.Cause
This these method does not reach the purpose of accurate measurement sediment thickness far, and this is individual to large-diameter deep pile foundation construction and construction quality
Very big hidden danger.
Utility model content
The purpose of this utility model is to provide a kind of cast-in-situ bored pile sediment thickness detection device, can be more accurate
The characteristics of detecting sediment thickness.
Above-mentioned purpose of the present utility model technical scheme is that：
A kind of cast-in-situ bored pile sediment thickness detection device, including measurement bar, the measurement bar include what is be wholely set
Reference section and measurement portion, the reference section include the first reference pressure probe and the second reference pressure probe, the measurement portion bag
At least three measurement pressure probes are included, the free end of the reference section is provided with the display screen of the above-mentioned some probes of a connection.
By using above-mentioned technical proposal, reference section is normally at hole top, and the liquid positioned at hole top is usually not have
Sediment, popped one's head in by the first reference pressure probe and the second reference pressure, the pressure of this two point in hole top is measured respectively
Force value, pressure value of the unit distance without sediment liquid is can obtain by making the difference, and is visited positioned at multiple measurement pressure of measurement portion
Adjacent two are made the difference each other, and the thickness of sediment can be calculated by the difference of difference, can will be by such a method by mistake
Difference control is in minimum.
Improved as of the present utility model, the free end of the measurement portion is tapered to be set.
By using above-mentioned technical proposal, by the tapered setting in the free end of measurement portion, on the one hand in measurement bar and sediment
Contact area is reduced when contact, prevents that sediment floats when measurement bar declines, and is on the other hand easy to the setting of taper also to have
There is guide effect, be convenient for measuring bar and be inserted into bottom hole.
Improved as of the present utility model, the measurement portion is provided with some guiding gutters, the setting direction of the guiding gutter
It is measurement portion towards reference section direction.
By using above-mentioned technical proposal, the setting of guiding gutter further reduces the sediment when measurement bar patchhole bottom and floated
Possibility.
Improved as of the present utility model, the spacing between the first reference pressure probe and the second reference pressure probe
It is equal with the spacing of adjacent measurement pressure probe.
By using above-mentioned technical proposal, the thickness for being easy to staff to calculate sediment is so set.
Improved as of the present utility model, the spacing of the adjacent measurement pressure probe is not more than 20mm.
By using above-mentioned technical proposal, the sediment thickness regulation of regulation cast-in-situ bored pile is respectively in national standard：End-bearing pile
No more than 50mm, friction pile is not more than 100mm, and resistance to plucking and horizontal force resistant stake are not more than 200mm；So being smaller than probe
20mm sets the thickness for facilitating staff's detection hole bottom.
Improved as of the present utility model, the measurement bar is hollow to be set.
By using above-mentioned technical proposal, the signal wire of probe is set to be walked inside measurement bar the hollow setting of measurement bar
Line, prevents the liquid in hole from making signal wire short circuit.
Improved as of the present utility model, the display screen connects a microcontroller and battery, the microcontroller pair
Each probe is both provided with independent identity code.
By using above-mentioned technical proposal, independent identity code is all set for each probe, display screen is shown
During data, staff, which can understand, intuitively knows the corresponding data of each probe.
Improved as of the present utility model, the microcontroller connects a timer and latch.
By using above-mentioned technical proposal, the setting of timer and latch, because measurement bar is when being deep into bottom hole, no
It is evitable because people operate unstable rock measurement bar, then data on display screen also can be with shaking
It is dynamic, so that inconvenient staff's reading, so the setting of timing module and latch avoids such case, when probe is opened
When beginning to measure, timing module starts timing and latch is controlled after preset time by data interlock, so that numerical value is fixed.
Improved as of the present utility model, the timer and latch couple a reset switch.
By using above-mentioned technical proposal, in order to which accuracy of measurement is higher, there is provided reset switch, will can read many
Data are organized to calculate the data measured by probe.
In summary, the utility model has the advantages that：Reference section is normally at hole top, positioned at hole top
There is no sediment when liquid is general, popped one's head in by the first reference pressure probe and the second reference pressure, this hole top is measured respectively
The pressure value of two points in part, pressure value of the unit distance without sediment liquid is both can obtain by making the difference, and positioned at measurement portion
Adjacent two of multiple measurement pressure probes make the difference each other, the thickness of sediment can be calculated by the difference of difference, by this
The method of kind can be by control errors in minimum.
Brief description of the drawings
Fig. 1 is the detection device structural scheme of mechanism of embodiment；
Fig. 2 is the system block diagram of embodiment.
In figure, 1, measurement bar；11st, reference section；111st, the first reference pressure is popped one's head in；112nd, the second reference pressure is popped one's head in；12、
Measurement portion；121st, pressure probe is measured；122nd, guiding gutter；21st, mud liquid layer；22nd, sediment layer；31st, display screen；32nd, microcontroller；
33rd, latch；34th, timer；35th, reset switch；36th, battery.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Shown in reference picture 1, a kind of cast-in-situ bored pile sediment radian detection device, for detecting the heavy of the bottom hole in drilling
Slag thickness, it includes measurement bar 1 and display screen 31, wherein, the hollow setting of measurement bar 1 and be reference section 11 by 1 point of measurement bar
With measurement portion 12, reference section 11, which is located on mud liquid layer 21, is provided with the first reference pressure probe 111 and the second reference pressure probe
112, the pressure value for measuring mud liquid layer 21, measurement portion 12 is arranged in mud liquid layer 21 and sediment layer 22, and in measurement portion 12
On at least provided with three measurement pressure probes 121, above-mentioned display screen 31 is arranged on the free end of reference section 11, or display screen
31 are arranged on outside is directly connected to by wire.
The bottom of above-mentioned measurement portion 12 is provided with taper, and sets some guiding gutters 122, guiding gutter in measurement portion 12
122 setting direction be measurement portion 12 set towards the direction of reference section 11, so play reduction when measurement bar 1 insert sediment into
When, cause the effect that the dregs of society gain an upper hand in sediment layer 22.
Two measurement pressure of the first reference pressure probe 111 and the second reference pressure probe 112 and arbitrary neighborhood are visited
Spacing between first 121 is equal, is h1 shown in reference picture 1, and h1 height is less than 20mm, so both can be by being calculated by
The thickness of sediment, circular can be：The pressure value of the output of the first reference pressure probe 111 is set as F1, the second benchmark
The pressure value that pressure probe 112 is exported is F2, then the pressure differential of mud liquid is that three are set in F2-F1, measurement portion 12 in unit h1
The pressure value for measuring pressure probe 121 and output is respectively F3, F4, F5, is set certainly in real work, due to F4, F5
Measure and drawn in sediment layer 22, so the pressure differential of sediment is F5-F4 in unit h1, then F2-F1=ρ mud liquid
Gh1s, F5-F4=ρ sediment gh1s, then ρ mud liquid/ρ sediments=F2-F1/ F5-F4, then ρ mud liquid=（F2-F1）ρ sediments/（F5-
F4）If the measured value of the adjacent measurement pressure probe 121 of the two of which of measurement bar 1 is not equal to（F5-F4）When, this table
The separation of bright sediment and mud liquid is between the two measurement pressure probes 121, if 2 points of pressure value is respectively F3 and F4,
And the depth of mud is set as X, the depth that can draw sediment is（h1-X）, then F4-F3=ρ mud liquid gXs+ ρ sediments g（h1-X）S, both
Can calculate X=（F4-F3+ ρ sediments gh1s）/ (F5-F4+F2-F1) ρ sediment gs, so the thickness of sediment arrives bottom hole equal to F4
Distance+X, as long as suitable operation error can be ignored.
Shown in reference picture 2, above-mentioned some pressure probes with measurement bar 1 by being tightly connected, and by measurement bar 1
Empty position cabling, latch 33 and the timing of microcontroller 32 and connection microcontroller 32 are provided with the end of measurement bar 1
Device 34, and by battery 36 to some electricity consumption power elements, between timer 34 and battery 36 being additionally provided with reset opens
35 are closed, microcontroller 32 is both provided with independent identity code to each pressure probe, when making 31 display data of display screen, work
Make personnel and can understand intuitively know which is popped one's head in exported data, the setting of timer 34 and latch 33, by
When measurement bar 1 is being deep into bottom hole, inevitably because the unstable of people's operation rocks measurement bar 1, then aobvious
Data in display screen 31 also can be with rocking, so that inconvenient staff's reading, so timing module and latch 33
Setting avoid such case, when needing probe to start measurement, press reset switch 35, timing module starts timing warp
Cross after preset time and control latch 33 by data interlock, so that the numerical value shown in display screen 31 is fixed, in order that detection
As a result it is more accurate, multi-group data can be taken to be calculated.
This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability
Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but
As long as all being protected in right of the present utility model by Patent Law.
Claims (9)
1. a kind of cast-in-situ bored pile sediment thickness detection device, it is characterised in that：Including measurement bar (1), the measurement bar (1)
Including the reference section (11) and measurement portion (12) being wholely set, the reference section (11) includes the first reference pressure probe (111)
Popped one's head in (112) with the second reference pressure, the measurement portion (12) includes at least three measurement pressure probes (121), the benchmark
The free end in portion (11) is provided with the display screen (31) of the above-mentioned some probes of a connection.
2. a kind of cast-in-situ bored pile sediment thickness detection device according to claim 1, it is characterised in that：The measurement
The free end in portion (12) is tapered to be set.
3. a kind of cast-in-situ bored pile sediment thickness detection device according to claim 1, it is characterised in that：The measurement
Portion (12) is provided with some guiding gutters (122), and the setting direction of the guiding gutter (122) is measurement portion (12) towards reference section
(11) direction.
4. a kind of cast-in-situ bored pile sediment thickness detection device according to claim 1, it is characterised in that：Described first
The spacing that reference pressure is popped one's head in (111) between the second reference pressure probe (112) and adjacent measurement pressure probe (121)
Spacing is equal.
5. a kind of cast-in-situ bored pile sediment thickness detection device according to claim 4, it is characterised in that：It is described adjacent
The spacing of measurement pressure probe (121) be not more than 20mm.
6. a kind of cast-in-situ bored pile sediment thickness detection device according to claim 1, it is characterised in that：The measurement
Bar (1) is hollow to be set.
7. a kind of cast-in-situ bored pile sediment thickness detection device according to claim 1, it is characterised in that：The display
Shield (31) and connect a microcontroller (32) and battery (36), the microcontroller (32) is both provided with solely to each probe
Vertical identity code.
8. a kind of cast-in-situ bored pile sediment thickness detection device according to claim 7, it is characterised in that：The micro-control
Device (32) processed connects a timer (34) and latch (33).
9. a kind of cast-in-situ bored pile sediment thickness detection device according to claim 8, it is characterised in that：The timing
Device (34) and latch (33) couple a reset switch (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341138.7U CN206583430U (en) | 2017-04-01 | 2017-04-01 | Cast-in-situ bored pile sediment thickness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341138.7U CN206583430U (en) | 2017-04-01 | 2017-04-01 | Cast-in-situ bored pile sediment thickness detection device |
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| Publication Number | Publication Date |
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| CN206583430U true CN206583430U (en) | 2017-10-24 |
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ID=60092533
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| CN201720341138.7U Active CN206583430U (en) | 2017-04-01 | 2017-04-01 | Cast-in-situ bored pile sediment thickness detection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374065A (en) * | 2018-12-07 | 2019-02-22 | 成都恒感科技有限公司 | Filling pile construction concrete feeding conduit position early warning cantilever lever sensing device |
| CN112268503A (en) * | 2020-10-26 | 2021-01-26 | 国家电网有限公司 | Underwater sediment depth measuring device and method |
| CN113700058A (en) * | 2021-09-25 | 2021-11-26 | 中机国能电力工程有限公司 | Bored concrete pile sediment testing arrangement |
-
2017
- 2017-04-01 CN CN201720341138.7U patent/CN206583430U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374065A (en) * | 2018-12-07 | 2019-02-22 | 成都恒感科技有限公司 | Filling pile construction concrete feeding conduit position early warning cantilever lever sensing device |
| CN109374065B (en) * | 2018-12-07 | 2024-02-23 | 成都恒感科技有限公司 | Cantilever lever sensing device for early warning of position of concrete conveying conduit for cast-in-place pile construction |
| CN112268503A (en) * | 2020-10-26 | 2021-01-26 | 国家电网有限公司 | Underwater sediment depth measuring device and method |
| CN113700058A (en) * | 2021-09-25 | 2021-11-26 | 中机国能电力工程有限公司 | Bored concrete pile sediment testing arrangement |
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