CN207992017U - Retaining wall bankets dense state detection device behind - Google Patents
Retaining wall bankets dense state detection device behind Download PDFInfo
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- CN207992017U CN207992017U CN201721919019.1U CN201721919019U CN207992017U CN 207992017 U CN207992017 U CN 207992017U CN 201721919019 U CN201721919019 U CN 201721919019U CN 207992017 U CN207992017 U CN 207992017U
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- retaining wall
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- injection bar
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- dense state
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Abstract
The utility model is related to retaining wall behind soil compaction technical field of quality detection, provides a kind of retaining wall and banket behind dense state detection device.The resistance that retaining wall bankets behind when detecting the injection of injection bar respectively by pressure sensor and pulling force sensor and extract, using the difference of penetration resistance and pull-out resistance as end resistance before injection bar, the injection amount and unpluging amount of injection bar are detected by stay wire displacement sensor, pass through resistance suffered by injection bar front end and injection amount the two data, the size of the power needed for unit area injection unit depth is calculated, the penetration resistance for namely making unit area front end injection unit depth can further judge retaining wall rolling earth behind retaining wall dense state according to the size of penetration resistance.By hammering load mode, counterforce device is not needed, whole process is easy to operate, efficient, and more accurate to retaining wall behind quality evaluation of earth-fill, penetration resistance is calculated using correlation formula, the data of acquisition are more accurate.
Description
Technical field
The utility model is related to retaining wall behind soil body detection technique field more particularly to a kind of retaining wall banket behind it is close
Real condition checkout gear.
Background technology
Retaining wall is one kind for the supporting and retaining system hillside soil body or bankets, and prevents mountain deformation or the structures for unstability of banketing.
In the engineering constructions such as railway, highway, industry and civil buildings, to prevent from slight slope or banketing to occur to come down and cave in, gear need to be used
The supporting constructions such as cob wall are subject to supporting and retaining system, to maintain the stabilization of the soil body after retaining wall.
The dense state of retaining wall and its rolling earth behind retaining wall is related to correlation engineering or the safety and stabilization of building.As one
Kind earth-retaining structure, the primary load that retaining wall is born are soil pressure, i.e., the soil body after retaining walls is to caused by the wall back of the body
Lateral pressure；Soil pressure is smaller, and the stability of retaining wall is higher, conversely, stability is lower.The size and many factors of soil pressure
Related, rolling earth behind retaining wall dense state is then an important factor for influencing soil pressure force value；Its dense state is insufficient, may cause to build thereon
Object differential settlement, crack, wall displacement are built, or even is collapsed.
Retaining wall in construction, wall banket behind dense state frequently with the methods of pour water or fill sand detection its be compacted system
Number.For existent retaining wall, wall bankets dense state generally using the inspection of the methods of probing, sound wave reflection and geological radar behind
It surveys.The method of drilling test, time-consuming and laborious, detection efficiency is low；GPR detection speed is fast, but testing result can only reflect road
Based structures situation cannot be associated with the physico-mechanical properties of soil；Acoustic Reflection Method can lossless, quick detection wall carry on the back state of soil,
But resolution ratio is low, is a kind of indirect, qualitative detection method.
Utility model content
To be solved in the utility model is that the existing mode for detecting retaining wall behind soil body compaction rate is inconvenient, inaccurate
True technical problem.
It bankets behind dense state detection device to solve the above problems, the utility model provides a kind of retaining wall, packet
It includes：
Data processing and device displaying result；
Guide device, the guide device are erected at the front of detected retaining wall by first support；
The front end of injection bar, the injection bar passes through the guide device and penetrates into the retaining wall；
Pressure sensor, one end of the pressure sensor and the tail end of the injection bar are detachably connected, the pressure
Sensor is communicated to connect with the data processing and device displaying result；
Force transfering device is hammered, the hammering force transfering device is connect with the other end of the pressure sensor；
Stay wire displacement sensor, the stay wire displacement sensor are connected to the hammering force transfering device and are filled with the guiding
Between setting；
The tail end of pulling force sensor, one end of the pulling force sensor and the injection bar be detachably connected and with it is described
Data processing is communicated to connect with device displaying result；And
Handle is pulled, the pulling handle is connect with the other end of the pulling force sensor.
Preferably, the front end of the injection bar is taper.
Preferably, the guide device includes the guide device ontology being erected in the first support and is rotatably connected on
Guide cylinder on the guide device ontology, the injection bar pass through the guide cylinder and are inserted into the retaining wall.
Preferably, the guide device ontology is rotatablely connected by turntable and the first support.
Preferably, the quantity of the injection bar is multiple, and multiple injection bar head and the tail are detachably connected.
Preferably, the pulling force sensor is socketed in by lantern ring on the injection bar.
Preferably, further include the second support being erected on retaining wall, the middle part for pulling handle turns with the holder
Dynamic connection, described one end for pulling handle is hand-held part, the other end is connect with the respective end of the pulling force sensor.
Preferably, the data processing has wireless communication module with device displaying result.
Preferably, further include being hammered into shape for tapping the percussion of hammering force transfering device.
The utility model additionally provides a kind of retaining wall and bankets behind dense state detecting method, and this method is：One is passed through
The front end for entering bar is inserted into tested retaining wall, hammer force degree and injection when hammering the tail end of injection bar and recording hammering every time
The injection amount of bar extracts the injection bar and records withdrawal force and injection bar outward after injection bar injection to set depth
Unpluging amount, according to the difference of hammer force and withdrawal force calculate injection bar before end resistance, further according toUnit of account area passes through
Enter the penetration resistance of bar injection unit depth, wherein qdIt is to pass through for penetration resistance, the F of unit area injection injection unit depth
Enter end resistance before bar, A is the cross-sectional area of injection bar, the injection amount that e is injection bar when hammering every time；It is passed through according to unit area
Enter the dense state that the penetration resistance evaluation retaining wall of bar injection unit depth bankets behind.
A kind of retaining wall provided by the utility model bankets dense state detection device behind, suffered by injection bar front end
The size of power needed for unit area probe injection unit depth, i.e. penetration resistance is calculated in two data of resistance and injection amount,
It can further judge retaining wall rolling earth behind retaining wall dense state according to the size of penetration resistance.By hammering load mode, it is not required to
Counterforce device is wanted, whole process is easy to operate, efficient, and more accurate to retaining wall behind quality evaluation of earth-fill,；It hammers and pulls out
The energy for going out injection bar is detected using pull pressure sensor, and penetration resistance, the data of acquisition are calculated using correlation formula
It is more accurate.
Description of the drawings
Fig. 1 be the utility model embodiment a kind of retaining wall banket behind dense state detection device injection when signal
Figure；
Fig. 2 is the schematic diagram of the guide device of the utility model embodiment；
Fig. 3 be the utility model embodiment a kind of retaining wall banket behind dense state detection device extract when signal
Figure.
Reference numeral：
1, hammer is tapped；2, force transfering device is hammered；3, pressure sensor；4, injection bar；5, stay wire displacement sensor；6、
Guide device ontology；7, guide cylinder；8, front end；9, turntable；10, first support；11, data processing and device displaying result；12、
Pull handle；13, second support；14, pulling force sensor；15, lantern ring.
Specific implementation mode
To keep the purpose, technical scheme and advantage of utility model clearer, below in conjunction with the attached drawing in utility model,
Technical solution in utility model is explicitly described, it is clear that described embodiment is that a utility model part is implemented
Example, and not all embodiment.Based on the embodiment in utility model, those of ordinary skill in the art are not making creativeness
The all other embodiment obtained under the premise of labour, shall fall within the protection scope of the present invention.
In the description of the present invention, unless otherwise indicated, the orientation of the instructions such as term "upper", "lower", "top", "bottom"
Or position relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification is retouched
It states, does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and operation,
Therefore it should not be understood as limiting the present invention.
It should be noted that unless otherwise clearly defined and limited, term " connection " shall be understood in a broad sense, for example, can
To be to be fixedly connected, may be a detachable connection, or be integrally connected；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected.For the ordinary skill in the art, it can understand above-mentioned term in utility model with concrete condition
Concrete meaning.
In conjunction with shown in Fig. 1 to Fig. 3, the utility model provides a kind of retaining wall and bankets behind dense state detection device,
The present apparatus includes that data processing transmits dress with device displaying result 11, guide device, injection bar 4, pressure sensor 3, hammer force
It sets 2, stay wire displacement sensor 5, pulling force sensor 14 and pulls handle 12.
Guide device is erected at the front of tested retaining wall by first support 10, and the front end 8 of injection bar 4 passes through guiding
Device simultaneously penetrates into retaining wall, and guide device plays the role of guiding for penetrating retaining wall to injection bar 4, so that injection
Bar 4 is vertical or penetrates retaining wall at a particular angle；One end of pressure sensor 3 and the tail end of injection bar 4 are detachably connected, separately
One end is connect with hammering force transfering device 2, for detecting hammer force when hammering force transfering device 2 and being hammered, to reflect
Go out the resistance of the soil body after 4 injection retaining wall of injection bar；Pressure sensor 3 and data processing and 11 communication link of device displaying result
It connects, the hammer force detected is transferred to data processing and device displaying result 11；Stay wire displacement sensor 5 is connected to hammering
It is anti-with this for detecting hammering the distance between force transfering device 2 and guide device between force transfering device 2 and guide device
Answer the injection amount of injection bar 4；One end of pulling force sensor 14 and the tail end of injection bar 4 be detachably connected and with data processing with
Device displaying result 11 communicates to connect, and pulls handle 12 and is connect with the other end of pulling force sensor 14.
The utility model embodiment is quasi- to be sentenced based on above-mentioned apparatus according to the size of resistance suffered by front end 8 when injection 4 injection of bar
Disconnected retaining wall bankets dense state behind, and the resistance suffered by 4 front end 8 of injection bar is bigger, illustrates that quality of filling soil is better, otherwise gets over
Difference.The resistance detected when injection includes 8 resistance of bar side frictional force and front end, and what when extraction detected is only bar side frictional force,
It is equal with frictional force when extracting when due to injection, frictional force when detected resultant force subtracts extraction when by injection, i.e.,
Obtain 8 resistance of rod end front end when injection.
Specifically, continuously hammering the hammering force transfering device 2 of 4 tail end of injection bar by the percussion hammer 1 of certain mass, make to pass through
Enter in 4 injection soil of bar, pressure sensor 3 detects the power hammered every time on acted on injection bar 4 during this, this power is namely
The sum of 4 bar side frictional force of injection bar and 8 resistance of front end；Stay-supported type displacement sensor can detect each injection bar 4 after hammering
Injection amount, after injection to predetermined depth, by hammering force transfering device 2, pressure sensor 3 and all dresses in addition to injection bar 4
Set dismounting.
During injection bar 4 is extracted, data processing is connect pull pressure sensor 3 with device displaying result 11, is passed through
Pulling force sensor 14 detects the bar side frictional force of injection bar 4, and the bar side frictional force of injection bar 4 and when injection 4 injection of bar at this time
Bar side frictional force it is equal, data processing and device displaying result 11 automatically by when corresponding 4 injection of injection bar sensor it is total
Force value subtracts frictional force force value when extraction, is calculated automatically from resistance suffered by 4 front end 8 of injection bar, and 4 front end of injection bar, 8 institute
Retaining wall is reacted by the size of resistance to banket behind dense state.
Final data processing passes through the two numbers of resistance suffered by 4 front end 8 of injection bar and injection amount with device displaying result 11
According to the size of the power needed for the 8 injection unit depth of front end of unit area being calculated, that is, make unit area tapered front end
8, the penetration resistance of injection unit depth can further judge the closely knit shape of retaining wall rolling earth behind retaining wall according to the size of penetration resistance
State, whole process is easy to operate, efficient, and more accurate to retaining wall behind quality evaluation of earth-fill.
In some embodiments, the front end 8 of injection bar 4 is preferably taper, and the tip of taper can't make the soil body in injection
4 front end 8 of bar forms accumulation, that is to say, that and it will not change the closely knit situation of the soil body, therefore more accurate penetration resistance can be obtained,
And then more accurately reflect the closely knit situation banketed.
Guide device includes the guide device ontology 6 being erected in first support 10 and is rotatably connected on guide device ontology
Guide cylinder 7 on 6 offers rotation slot on guide device ontology 6, and guide cylinder 7 is and excellent by being pivotally mounted in rotation slot
It is selected as Plane Rotation along longitudinal direction, and rotational angle can lock；Injection bar 4 passes through guide cylinder 7 and is inserted into retaining wall, with
This makes injection bar 4 with the soil body of the angle injection retaining wall behind of setting.
Further, guide device ontology 6 is rotatablely connected by turntable 9 and first support 10, thus makes guide device sheet
Body 6 can do the rotation of horizontal direction, can make passing through for injection bar 4 on the basis of perpendicular rotates in guide cylinder 7 as a result,
Enter angle and do arbitrary adjustment, therefore, the inclined degree of inclined degree and ground regardless of retaining wall can ensure injection bar
4 with set angle injection retaining wall.
In addition, the quantity of injection bar 4 can be multiple, multiple 4 head and the tail of injection bar are detachably connected, with this according to different
Injection amount demand chooses an appropriate number of injection bar 4, and compared to the injection bar 4 of monoblock type, split type injection bar 4 taps behaviour
Make and transport is all more convenient.
In some embodiments, pulling force sensor 14 can be socketed in by lantern ring 15 on injection bar 4, specifically may be used
The larger fake of damped coefficient pulls injection bar 4 backward by the frictional force between fake and injection bar 4；Certainly, pull sensing
Device 14 can also become one with pressure sensor 3, that is, select a kind of pull pressure sensor, can either be examined in this way in hammering
Measuring pressure, and the step of can detecting pulling force when pulling, eliminate disassembling sensor.
Further, the present apparatus further includes the second support 13 being erected on retaining wall, pulls the middle part of handle 12 and is somebody's turn to do
Second support 13 is rotatablely connected, and the one end for pulling handle 12 is that the respective end of hand-held part, the other end and pulling force sensor 14 connects,
It is pulled backward as injection bar 4 by lever principle using this and power is provided, operated more effortless.
In some embodiments, data processing and display device are mainly by data acquisition module, data processing module, data
Several part compositions such as memory module, button, battery and display screen.Its operation principle is：Pull pressure sensor 3 and displacement sensing
The signal of device enters A/D converter through signal amplifier amplification, after A/D converter converts analog signals into digital signal, passes
It gives chip microprocessor and carries out data acquisition and calculation process, finally shown by data presentation device, and pass through communication interface
Printer is output to printing test as a result, or connection computer transmitting test data.
In addition, data processing there can also be wireless communication module with device displaying result 11, such as pass through bluetooth and intelligence
Can the equipment connection such as mobile phone, smart mobile phone is again by GPRS, 3G or 4G network of operator by data remote transmission to computer
Client is facilitated the transmission of data with this, improves efficiency.
The utility model additionally provides a kind of retaining wall and bankets behind dense state detecting method, and this method is：One is passed through
The front end 8 for entering bar 4 is inserted into tested retaining wall, and the tail end of hammering injection bar 4 simultaneously records hammer force degree when hammering every time and passes through
The injection amount for entering bar 4 extracts injection bar 4 and records withdrawal force and injection bar 4 outward after 4 injection to set depth of injection bar
Unpluging amount, the resistance of 4 front end 8 of injection bar is calculated according to the difference of hammer force and withdrawal force, further according toUnit of account
The penetration resistance of 4 injection unit depth of area injection bar, wherein qdIt is hindered for the injection of unit area injection injection unit depth
Power, F are that resistance, the A of 4 front end 8 of injection bar are the cross-sectional area of injection bar 4, the injection amount that e is injection bar 4 when hammering every time；Root
The dense state banketed behind according to the penetration resistance evaluation retaining wall of 4 injection unit depth of unit area injection bar.
By the above method, each and total hammer force is recorded, detects automatically, record each and total injection amount, automatically
Penetration resistance is calculated, 4 injection angle of display injection bar can be automatically converted into coefficient of compaction K, dynamic deformation module E as neededvd
Or coefficient of subgrade reaction K30Equal Testing index, automatically save, print testing result etc..
Specifically, the detecting step of the utility model is：
1. an osculum is manually opened in the position detected needed for retaining wall, enable the front end 8 of injection bar 4 by.
2. the hammering force transfering device 2, pressure sensor 3, injection bar 4 are sequentially connected, by 4 guide device of injection bar
It in first support 10, is placed near metope, adjusts level, guide cylinder 7 is inserted into 4 bottom of injection bar, passes through guiding
The turntable 9 of device lower part and intermediate guide cylinder 7 are adjusted to required injection angle, and injection bar 4 is made to enter soil after wall by osculum
Body fixes injection direction by knob, pressure sensor 3, data processing and device displaying result 11 is drawn with injection bar 4 respectively
Lead device connection.
3. the switch of turn-on data processing and device displaying result 11 hammers 1 continuous hammering hammering force transfering device into shape with tapping
2, make the 4 continuous injection of injection bar, when first segment injection bar 4 will whole injection to retaining wall when, by injection bar 4 and pressure sensing
Device 3 disconnects, and centre connects another injection bar 4, continues to hammer injection, according to specific soil body type and needs, up to injection to institute
Depth need to be detected.
4. force transfering device 2, pull pressure sensor 3 and all devices in addition to injection bar 4 will be hammered to remove.
5. data processing and device displaying result 11 are connected on pulling force sensor 14 again；Second support 13 is installed
In place, make lantern ring 15 that injection bar 4, a hand be passed through firmly to tilt injection bar 4 to side, make the lantern ring 15 and injection bar 4
It is in close contact, the other hand, which agitates, pulls handle 12, and injection bar 4 is extracted, data processing and device displaying result 11 during this
Automatic data acquisition and calculation rod end probe resistance.
6. reading either print data processing and the testing result in device displaying result 11 or connection computer being further
Data will be analyzed, judge retaining wall behind soil body dense state.
7. after the completion of detection, each section device is dismantled and puts back to equipment box.
To sum up, the beneficial effects of the utility model can be summarized as following aspect：
1. using hammering load mode, counterforce device is not needed, hammering energy is detected by pressure sensor 3, and profit
It is calculated with correlation formula.
2. by stay wire displacement sensor 5, the injection amount after hammering every time and total injection amount can be accurately measured.
3. the detector is equipped with angle regulator, adjusting the device can make injection bar 4 and tapered front end 8 with different angle
The injection retaining wall behind soil body.
4. injection bar 4 easily can be extracted from the soil body by 4 extracting apparatus of injection bar.
5. data acquire and display device can calculate testing result, the hammering energy of each hammering of display, injection amount automatically
Result can be converted to coefficient of compaction K, dynamic deformation module E by curve and penetration resistance according to correlativity formulavdOr ground base system
Number K30Display.
Finally it should be noted that：Above example is only to illustrate the technical solution of utility model, rather than its limitations；To the greatest extent
Pipe is with reference to the foregoing embodiments described in detail utility model, it will be understood by those of ordinary skill in the art that：Its according to
So can be with technical scheme described in the above embodiments is modified, or which part technical characteristic is equally replaced
It changes；And these modifications or replacements, each embodiment technical solution of utility model that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (9)
- The dense state detection device 1. a kind of retaining wall bankets behind, which is characterized in that including：Data processing and device displaying result；Guide device, the guide device are erected at the front of detected retaining wall by first support；The front end of injection bar, the injection bar passes through the guide device and penetrates into the retaining wall；Pressure sensor, one end of the pressure sensor and the tail end of the injection bar are detachably connected, the pressure sensing Device is communicated to connect with the data processing and device displaying result；Force transfering device is hammered, the hammering force transfering device is connect with the other end of the pressure sensor；Stay wire displacement sensor, the stay wire displacement sensor be connected to the hammering force transfering device and the guide device it Between；The tail end of pulling force sensor, one end of the pulling force sensor and the injection bar be detachably connected and with the data Processing is communicated to connect with device displaying result；Handle is pulled, the pulling handle is connect with the other end of the pulling force sensor.
- The dense state detection device 2. retaining wall according to claim 1 bankets behind, which is characterized in that the injection bar Front end be taper.
- The dense state detection device 3. retaining wall according to claim 1 bankets behind, which is characterized in that the guiding dress It sets including the guide device ontology being erected in the first support and the guiding being rotatably connected on the guide device ontology Cylinder, the injection bar pass through the guide cylinder and are inserted into the retaining wall.
- The dense state detection device 4. retaining wall according to claim 3 bankets behind, which is characterized in that the guiding dress Ontology is set to be rotatablely connected by turntable and the first support.
- The dense state detection device 5. retaining wall according to claim 1 bankets behind, which is characterized in that the injection bar Quantity be multiple, multiple injection bars head and the tail are detachably connected.
- The dense state detection device 6. retaining wall according to claim 1 bankets behind, which is characterized in that the pulling force passes Sensor is socketed in by lantern ring on the injection bar.
- The dense state detection device 7. retaining wall according to claim 1 bankets behind, which is characterized in that further include setting up Second support on retaining wall, the middle part for pulling handle are connect with the holder pivots, described one end for pulling handle It is connect with the respective end of the pulling force sensor for hand-held part, the other end.
- The dense state detection device 8. retaining wall according to claim 1 bankets behind, which is characterized in that at the data Reason has wireless communication module with device displaying result.
- The dense state detection device 9. retaining wall according to claim 1 bankets behind, which is characterized in that further include being used for Tap the percussion hammer of hammering force transfering device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721919019.1U CN207992017U (en) | 2017-12-29 | 2017-12-29 | Retaining wall bankets dense state detection device behind |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721919019.1U CN207992017U (en) | 2017-12-29 | 2017-12-29 | Retaining wall bankets dense state detection device behind |
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| CN207992017U true CN207992017U (en) | 2018-10-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917874A (en) * | 2017-12-29 | 2018-04-17 | 中铁第五勘察设计院集团有限公司 | Retaining wall bankets dense state detection device and method behind |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917874A (en) * | 2017-12-29 | 2018-04-17 | 中铁第五勘察设计院集团有限公司 | Retaining wall bankets dense state detection device and method behind |
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