CN105971034B - A kind of pressure inclination angle type sediment calibrator and its thickness measuring method - Google Patents
A kind of pressure inclination angle type sediment calibrator and its thickness measuring method Download PDFInfo
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- CN105971034B CN105971034B CN201610493955.4A CN201610493955A CN105971034B CN 105971034 B CN105971034 B CN 105971034B CN 201610493955 A CN201610493955 A CN 201610493955A CN 105971034 B CN105971034 B CN 105971034B
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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 discloses a kind of pressure inclination angle type sediment calibrator and its thickness measuring method.The sediment probe of the sediment calibrator includes electric machine assembly, probe assembly and probe circuit plate, the motor of electric machine assembly is fixed on bearing block and the clutch end of motor and the first gear axis connection above bearing block, first gear engages with the second gear above bearing block of probe assembly, the screw mandrel bearing portion of probe assembly is fixed on bearing block, the dip angle signal that control unit in probe circuit plate receives the control signal of ground host machine and earthward main frame transmission electrical machine operating current signal and obliquity sensor detect, the relative change of motor working current is equivalent to the relative change of probe pressure, ground host machine shows pressure probe extension elongation curve and inclination angle probe extension elongation curve.By Simultaneous Determination probe inclination angle and probe pressure, both are mutually authenticated the present invention, improve interface judges under sediment reliability and accuracy.
Description
Technical field
The present invention relates to drilling pouring pile hole in engineering technology or continuous wall trench underground sediment thickness e measurement technology to lead
Domain, and in particular to a kind of pressure-inclination angle type sediment calibrator and its thickness measuring method.
Background technology
At present, the method for the sediment thickness before pile includes the chaining pin survey cake method of measurement with angle, and this method uses inclination angle
The angle of inclination of sensor the real time measure probe simultaneously uploads to detecting instrument, real-time display inclination angle-probe extension elongation curve, from
Angle is found in tilt curves and becomes big flex point suddenly, probe extension elongation is sediment thickness corresponding to flex point, without flex point
Occur being determined as sediment thickness beyond probe in detecting scope.But there is following deficiency in this method：When sediment surface is very flat
When whole, chaining pin props up hard rock and jacks up probe, if probe unobvious tilt, tilt curves now can without significant change flex point
Sediment thickness is mistaken for beyond probe in detecting scope；When sediment surface is not perfectly flat whole, probe starting angular angle is just very big,
Probe is when working in an inclined state, and the chaining pin power that is slightly hampered can make probe angle of inclination bigger, can be judged by accident in tilt curves
To have reached sediment lower surface.Thus this method measurement result was both unreliable or inaccurate.
The content of the invention
In view of this, it is necessary to which a kind of pressure-inclination angle that can improve sediment thickness detection reliability and accuracy is provided
Formula sediment calibrator and its thickness measuring method.
A kind of pressure-inclination angle type sediment calibrator, including sediment probe, the ground electricity connected of being popped one's head in by cable and sediment
Cable winch, the ground host machine being connected by signal wire with land cable winch；
Sediment probe includes seal cavity component, electric machine assembly, probe assembly and probe circuit plate；
Seal cavity component includes bottom of chamber disk, cavity, the cavity lid sequentially coaxially set from top to bottom；The top of cavity lid
Provided with the fixing hole for fixing cable one end, the top of cavity lid and cavity is tightly connected；The bottom of cavity is consolidated provided with bottom
Reservation, the downside of fixed seat at bottom are tightly connected by dynamic sealing nut and bottom of chamber disk；
Electric machine assembly includes bearing block, motor, first gear；The both ends of bearing block are consolidated by connector and cavity inner wall
It is fixed；Motor is fixed on bearing block, and the clutch end of motor and the first gear axis connection above bearing block；
Probe assembly includes probe, draw nut, screw mandrel, second gear, two axis of guides；Probe is arranged on draw nut
Bottom, probe sequentially passes through and stretches out fixed seat at bottom, dynamic sealing nut and bottom of chamber disk；Draw nut and the coaxial fit of screw mandrel；
The bearing portion of screw mandrel is fixed on bearing block, and the top of screw mandrel is nibbled by the second gear above bearing block with first gear
Close；Two axis of guides are be arranged in parallel with screw mandrel, and one end of the axis of guide is fixed on bearing block, and the other end of the axis of guide is fixed on
In the spacing hole of dynamic sealing nut；The spacing preiection of draw nut both sides is slidably matched with two axis of guides；
One end of probe circuit plate is fixed on the inside of cavity lid, and probe circuit is located at the opposite side of bearing block；Probe electricity
Road plate includes control unit, obliquity sensor, electric current A/D converter, RS485 interfaces, power module；Power module respectively with control
Unit processed, motor electrical connection；Electric current A/D converter one end electrically connects with motor, the electric current A/D converter other end and control unit
Electrical connection；Obliquity sensor electrically connects with control unit；Control unit passes through the cable reception ground that is electrically connected with RS485 interfaces
The control signal of main frame and earthward main frame transmission dip angle signal and motor working current signal；The output end of control unit and electricity
The control terminal electrical connection of machine；
Wherein, the relative change of motor working current is equivalent to the relative change of probe pressure, and ground host machine is real-time
Show pressure-probe extension elongation curve and inclination angle-probe extension elongation curve.
A kind of pressure-inclination angle type sediment thickness measuring method, this method comprise the following steps：
Step (1)：The waterproof socket that sediment is popped one's head in is connected on the waterproof plug for the cable being connected with cable reel, electricity
Cable winch is connected by signal wire with ground host machine；And ground host parameter is set, including probe motion range；
Step (2)：Ground host machine is sent to control unit starts measurement signal, and start recording probe stretches out the time；Control
Unit processed controls the motor in sediment probe to work after receiving enabling signal, probe is stretched out with constant speed；Control unit is real
When monitor inclination angle and the motor working current of sediment probe, and transmit to ground host machine；
Step (3)：Ground host machine real-time display probe pressure-probe extension elongation curve and inclination angle-probe extension elongation
Curve；Wherein, the relative change of motor working current is equivalent to the relative change of probe pressure；Probe extension elongation is equal to
The probe stretching time is multiplied by constant speed；
Step (4)：When probe arrives at the hard formation of sediment bottom, probe, which stretches out, to be obstructed and slowly jacks up sediment probe,
Motor load increases suddenly, and motor working current also increases suddenly, and the inclination angle of sediment probe also begins to increase, the spy of ground host machine
There is flex point in head pressure-probe extension elongation curve and inclination angle-probe extension elongation curve；Corresponding to the flex point occurred simultaneously at
Probe extension elongation is sediment thickness.
Pressure-inclination angle type sediment the calibrator and its thickness measuring method of the present invention utilizes bottom hole sediment upper and lower surface different medium
Nonhomogeneous hardness, take into full account various influence factors during thickness measuring, by probe pressure parameter with probe angle of inclination parameter
It is combined, substantially increases the reliability and accuracy of bottom sediment thickness measurement.Because probe own wt is heavier, probe is only
After arriving at bottom hole hard rock or native soil, probe can be just caused entirely to pop one's head in jack-up, now probe pressure is necessarily unexpected
Become big, interface under sediment is reliable and science to distinguish with this parameter.In addition, judge the initial of probe by popping one's head in inclination angle parameter
State, and probe original state is adjusted, it is ensured that probe extends vertically down, and improves the accuracy of testing result；Together
When inclination angle parameter can be mutually authenticated with pressure variable, improve the reliability that sediment lower surface judges.In addition this sediment calibrator will
Probe screw mandrel be arranged in parallel with motor, substantially reduces the length of probe, is advantageous to increase the range ability of sediment thickness detection；
Probe dynamic sealing is combined using the forced sealing of lip with O-shaped sealing, improves the reliability of probe waterproof sealing；By motor
Operating current is equivalent to probe pressure, simplifies sonde configuration, improves probe functional reliability and accuracy.
Brief description of the drawings
Fig. 1 is the structural representation of pressure of the present invention-inclination angle type sediment calibrator；
Fig. 2 is the structural representation of sediment probe；
Fig. 3 is enlarged drawing at I in Fig. 2；
Fig. 4 is the profile of sediment probe；
Fig. 5 is the structured flowchart of probe circuit plate；
Fig. 6 A are pressure-probe extension elongation curve；
Fig. 6 B are inclination angle-probe extension elongation curve.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated, it will be appreciated that and the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The present invention provides a kind of pressure-inclination angle type sediment calibrator, as shown in figure 1, including：Sediment probe 100, ground master
Machine 200 and land cable winch 300, sediment probe 100 are connected by cable 400 with land cable winch 300, and land cable twists
Car 300 is connected by signal wire with ground host machine 200.
As shown in Figures 1 to 4, sediment probe 100 includes seal cavity component 101, electric machine assembly 102, the and of probe assembly 103
Probe circuit plate 104.Specifically, seal cavity component 101 includes bottom of chamber disk 1011, the cavity sequentially coaxially set from top to bottom
1012nd, cavity lid 1014.The top of cavity lid 1014 is provided with the fixing hole 1016 for being used for fixing the one end of cable 400.Cavity lid
1014 are tightly connected with the top of cavity 1012.The bottom of cavity 1012 is provided with fixed seat at bottom 1017, fixed seat at bottom 1017
Downside be tightly connected by dynamic sealing nut 1013 and bottom of chamber disk 1011.Preferably, the upper side of cavity lid 1014 is provided with
The waterproof socket 1015 being connected with the waterproof plug of cable 400.
Electric machine assembly 102 includes bearing block 1021, motor 1022, first gear 1023.The both ends of bearing block 1021 pass through
Connector is fixed with the inwall of cavity 1012.Motor 1022 is fixed on bearing block 1021, and the clutch end of motor 1022 with
The axis connection of first gear 1023 above bearing block.
Probe assembly 103 includes probe 1031, draw nut 1032, limit switch contact 1033, screw mandrel 1034, upper limit
1038, two switch 1035, lower position switch 1036, lower position switch fixed seat 1037, second gear axis of guides 1039.Probe
1031 are arranged on the bottom of draw nut 1032, and probe 1031 sequentially passes through and stretches out fixed seat at bottom 1017, dynamic sealing nut
1013 and bottom of chamber disk 1011.Draw nut 1032 and 1034 coaxial fit of screw mandrel, and the top of draw nut 1032 is provided with spacing
Switch contact 1033.The bearing portion of screw mandrel 1034 is fixed on bearing block 1021, and the top of screw mandrel 1034 passes through located at bearing block
(1021) second gear 1038 above engages with first gear 1023.Two axis of guides 1039 and 1034 coaxial fit of screw mandrel,
And one end of the axis of guide 1039 is fixed on bearing block 1021, the other end of the axis of guide 1039 is fixed on dynamic sealing nut 1013
In spacing hole.The spacing preiection of the both sides of draw nut 1032 is slidably matched with two axis of guides 1039.Upper limit position switch 1035
One end is fixed on the bottom of bearing block 1021.Lower position switch fixed seat 1037 is located at 1017 coaxial fit of fixed seat at bottom.Lower limit
Bit switch fixed seat 1037 is provided with the lower position switch 1036 being oppositely arranged with upper limit position switch 1035.
Preferably, forced sealing ring and clamp nut are provided with dynamic sealing nut 1013, probe 1031 is in sealing ring
Move back and forth water-tight.Specifically, the dynamic sealing of probe 1031 and seal cavity component 101 uses O-ring seal and lip pressure
Enter formula sealing ring combination, by adjust the tightness of the forced sealing ring clamp nut of lip adjust dynamic sealing etc.
Level, improve the water resistance of seal cavity component 101.The O-ring seal of the forced sealing ring front end of lip is close as first layer
Feng Jike strengthen water resistance, damage of the mud fine sand to lip-type packing can be stopped again, improve dynamic sealing waterproof effect and
Service life.
One end of probe circuit plate 104 is fixed on the inner side of cavity lid 1014, and probe circuit plate 104 is located at bearing block 1021
Opposite side.As shown in figure 5, probe circuit plate 104 includes control unit 1041, obliquity sensor 1042, electric current A/D converter
1043rd, RS485 interfaces 1044, power module 1045.Power module 1045 is electrically connected with control unit 1041, motor 1022 respectively
Connect.One end of electric current A/D converter 1043 electrically connects with motor 1022, the other end of electric current A/D converter 1043 and control unit
1041 electrical connections.Obliquity sensor 1042 electrically connects with control unit 1041.Control unit 1041 with RS485 interfaces by being electrically connected
The cable 400 connect receives the control signal of ground host machine 200 and earthward main frame 200 transmits the dip angle signal and electricity of the real time measure
Machine operating current signal.Wherein, RS485 interfaces are electrically connected by RS485 twisted-pair feeders with waterproof socket 1015.Control unit 1041
Electrically connected with upper limit position switch 1035, lower position switch 1036.The output end of control unit 1041 and the control terminal of motor 1022
Electrical connection.When limit switch contact 1033 touches lower position switch 1036 or upper limit position switch 1035, control unit 1041 is controlled
Motor 1022 processed is stopped.Control unit 1041 is stretched out by the job control probe of controlled motor 1022 with constant speed V, together
When control unit 1041 record probe stretch out time T.Probe extension elongation is that constant speed V is multiplied by probe stretching time T.By
After probe is by resistance, the power output increase of motor, correspondingly, power input to a machine also increases, the work of motor
Make electric current also to increase, therefore, probe pressure obtains by determining probe motor working current, that is to say, that motor works
The relative change of electric current is equivalent to the relative change of probe pressure.The real-time display pressure of ground host machine 200-probe stretches out length
Write music line and inclination angle-probe extension elongation curve.The pressure being respectively shown according to Fig. 6 A, 6B-probe extension elongation curve, incline
Angle-probe extension elongation curve, when probe extension elongation is 94mm, inclination angle and pressure jump, then judge that sediment thickness is
94mm。
Wherein, land cable winch may be either electric winch, or hand winch.Cable reel is deep with cable decentralization
Spend detection function and lower limiting function.Probe transfers to cable slack behind bottom hole sediment surface, touches the lower limit of cable reel
Switch, cable reel stop cable decentralization.
Comprising the following steps that for sediment thickness measurement is carried out using pressure-inclination angle type sediment calibrator of the present invention：
Step (1)：The waterproof socket that sediment is popped one's head in is connected on the waterproof plug for the cable being connected with cable reel, electricity
Cable winch is connected by signal wire with ground host machine；And ground host parameter is set, including probe motion range；
Step (2)：Ground host machine is sent to control unit starts measurement signal, and start recording probe stretches out the time；Control
Unit processed controls the motor in sediment probe to work after receiving enabling signal, probe is stretched out with constant speed；Control unit is real
When monitor inclination angle and the motor working current of sediment probe, and transmit to ground host machine；
Step (3)：Ground host machine real-time display probe pressure-probe extension elongation curve and inclination angle-probe extension elongation
Curve；Wherein, the relative change of motor working current is equivalent to the relative change of probe pressure；Probe extension elongation is equal to
The probe stretching time is multiplied by constant speed；
Step (4)：When probe arrives at the hard formation of sediment bottom, probe, which stretches out, to be obstructed and slowly jacks up sediment probe,
Motor load increases suddenly, and motor working current also increases suddenly, and the inclination angle of sediment probe also begins to increase, the spy of ground host machine
There is flex point in head pressure-probe extension elongation curve and inclination angle-probe extension elongation curve；Corresponding to the flex point occurred simultaneously at
Probe extension elongation is sediment thickness；
Step (5)：Probe continues to stretch out, until probe motion range is reached, the limit switch contact of sediment probe
Touch lower position switch action, control unit controlled motor is stopped, ground host machine stop recording probe stretch out the time and to
Control unit, which is sent, stops measurement signal；
Step (6)：Control unit, which receives, stops measurement signal, controlled motor reversion, probe recovery；In limit switch touching
Limit switch acts, and control unit controlled motor is stopped, and measurement terminates.
Preferably, dip correction step (1.1) of popping one's head in is carried out before step (2) is performed；Probe dip correction step mistake
Journey is as follows：
Step (a)：Sediment probe transfers to bottom hole sediment surface by cable reel, and the obliquity sensor of sediment probe is real
When detect the inclination angle of sediment probe and transmit to the control unit of sediment probe, control unit transmits at inclination angle to ground host machine；
Step (b)：Ground host machine judges whether inclination angle is more than default probe tilt threshold, if it is, slowly above carry it is heavy
Slag is popped one's head in, until the inclination angle of sediment probe is less than probe tilt threshold, cable reel stops lifting；If not, it is transferred to step
(2)。
Pressure-inclination angle type sediment the calibrator and its thickness measuring method of the present invention passes through Simultaneous Determination probe inclination angle and probe pressure
Power, both are mutually authenticated, and improve interface judges under sediment reliability and accuracy.Meanwhile electric machine assembly and probe groups
Part is mounted side by side, and is engaged by gear mesh and drives probe to move back and forth, substantially reduces the length of probe, is advantageous to increase probe
Stroke, increase sediment thickness detection range ability；Probe dynamic sealing is combined using the forced sealing of lip with O-shaped sealing, is carried
The high reliability of probe waterproof sealing；Motor working current is equivalent to probe pressure, simplifies sonde configuration, is improved
Probe functional reliability and accuracy.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (7)
1. a kind of pressure-inclination angle type sediment calibrator, including sediment pop one's head in (100), pass through cable (400) and sediment probe
(100) the land cable winch (300) of connection, the ground host machine being connected by signal wire with land cable winch (300)
(200)；Characterized in that,
Sediment probe (100) includes seal cavity component (101), electric machine assembly (102), probe assembly (103) and probe circuit
Plate (104)；
Seal cavity component (101) includes bottom of chamber disk (1011), cavity (1012), the cavity lid sequentially coaxially set from top to bottom
(1014)；The top of cavity lid (1014) is provided with the fixing hole (1016) for being used for fixing cable (400) one end, cavity lid (1014)
It is tightly connected with the top of cavity (1012)；The bottom of cavity (1012) is provided with fixed seat at bottom (1017), fixed seat at bottom
(1017) downside is tightly connected by dynamic sealing nut (1013) and bottom of chamber disk (1011)；
Electric machine assembly (102) includes bearing block (1021), motor (1022), first gear (1023)；The two of bearing block (1021)
End is fixed by connector and cavity (1012) inwall；Motor (1022) is fixed on bearing block (1021), and motor (1022)
Clutch end and first gear (1023) axis connection above the bearing block (1021)；
Probe assembly (103) include probe (1031), draw nut (1032), screw mandrel (1034), second gear (1038), two
The axis of guide (1039)；Probe (1031) is arranged on draw nut (1032) bottom, and probe (1031) sequentially passes through and stretches out bottom
Fixed seat (1017), dynamic sealing nut (1013) and bottom of chamber disk (1011)；Draw nut (1032) and screw mandrel (1034) coaxial sleeve
Close；The bearing portion of screw mandrel (1034) is fixed on bearing block (1021), and the top of screw mandrel (1034) passes through located at bearing block
(1021) second gear (1038) above engages with first gear (1023)；Two axis of guides (1039) are flat with screw mandrel (1034)
Row is set, and one end of the axis of guide (1039) is fixed on bearing block (1021), and the other end of the axis of guide (1039) is fixed on dynamic
In the spacing hole of sealing nut (1013)；The spacing preiection of draw nut (1032) both sides slides with two axis of guides (1039) matches somebody with somebody
Close；
One end of probe circuit plate (104) is fixed on the inside of cavity lid (1014), and probe circuit plate (104) is located at bearing block
(1021) opposite side；Probe circuit plate (104) includes control unit (1041), obliquity sensor (1042), electric current A/D conversions
Device (1043), RS485 interfaces (1044), power module (1045)；Power module (1045) respectively with control unit (1041), electricity
Machine (1022) electrically connects；Electric current A/D converter (1043) one end electrically connects with motor (1022), electric current A/D converter (1043)
The other end electrically connects with control unit (1041)；Obliquity sensor (1042) electrically connects with control unit (1041)；Control unit
(1041) control signal of ground host machine (200) is received and to ground by the cable (400) that is electrically connected with RS485 interfaces (1044)
Face main frame (200) transmits dip angle signal and motor working current signal；The output end of control unit (1041) and motor (1022)
Control terminal electrical connection；
Wherein, the relative change of motor working current is equivalent to the relative change of probe pressure, and ground host machine (200) is real-time
Show pressure-probe extension elongation curve and inclination angle-probe extension elongation curve.
A kind of 2. pressure according to claim 1-inclination angle type sediment calibrator, it is characterised in that the probe assembly
(103) it is solid also to include limit switch contact (1033), upper limit position switch (1035), lower position switch (1036), lower position switch
Reservation (1037), limit switch contact (1033) are located at the top of draw nut (1032)；One end of upper limit position switch (1035)
It is fixed on bearing block (1021) bottom；Lower position switch fixed seat (1037) and fixed seat at bottom (1017) coaxial fit, lower limit
Bit switch fixed seat (1037) is provided with the lower position switch (1036) being oppositely arranged with upper limit position switch (1035)；Upper limit is opened
Close (1035), lower position switch (1036) electrically connects with the input of control unit (1041).
A kind of 3. pressure according to claim 1-inclination angle type sediment calibrator, it is characterised in that the dynamic sealing nut
(1013) forced sealing ring and clamp nut are provided with.
4. a kind of pressure according to any one of claim 1 to 3-inclination angle type sediment calibrator, it is characterised in that described
The upper side of cavity lid (1014) is provided with the waterproof socket (1015) being connected with the waterproof plug of cable (400).
A kind of 5. pressure-inclination angle type sediment thickness measuring method, it is characterised in that：This method comprises the following steps：
Step (1)：The waterproof socket that sediment is popped one's head in is connected on the waterproof plug for the cable being connected with cable reel, cable twists
Car is connected by signal wire with ground host machine；And ground host parameter is set, including probe motion range；
Step (2)：Ground host machine is sent to control unit starts measurement signal, and start recording probe stretches out the time；Control is single
Member controls the motor in sediment probe to work after receiving enabling signal, probe is stretched out with constant speed；Control unit is supervised in real time
Inclination angle and the motor working current of sediment probe are surveyed, and is transmitted to ground host machine；
Step (3)：Ground host machine real-time display probe pressure-probe extension elongation curve and inclination angle-probe extension elongation curve；
Wherein, the relative change of motor working current is equivalent to the relative change of probe pressure；Probe extension elongation is equal to probe
The stretching time is multiplied by constant speed；
Step (4)：When probe arrives at the hard formation of sediment bottom, probe, which stretches out, to be obstructed and slowly jacks up sediment probe, motor
Load increases suddenly, and motor working current also increases suddenly, and the inclination angle of sediment probe also begins to increase, the probe pressure of ground host machine
There is flex point in power-probe extension elongation curve and inclination angle-probe extension elongation curve；Probe corresponding to the flex point occurred simultaneously at
Extension elongation is sediment thickness.
A kind of 6. pressure according to claim 5-inclination angle type sediment thickness measuring method, it is characterised in that：
Dip correction step (1.1) of popping one's head in is carried out before step (2) is performed；Dip correction step (1.1) process of probe is as follows：
Step (a)：Sediment probe transfers to bottom hole sediment surface by cable reel, and the obliquity sensor of sediment probe is examined in real time
Survey the inclination angle of sediment probe and transmit to the control unit of sediment probe, control unit and transmit at inclination angle to ground host machine；
Step (b)：Ground host machine judges whether inclination angle is more than default probe tilt threshold, if it is, slowly above proposing sediment spy
Head, until the inclination angle of sediment probe is less than probe tilt threshold, cable reel stops lifting；If not, it is transferred to step (2).
A kind of 7. pressure according to claim 5-inclination angle type sediment thickness measuring method, it is characterised in that：
This method also comprises the following steps：
Step (5)：Probe continues to stretch out, until probe motion range is reached, the limit switch contact touching of sediment probe
Lower position switch acts, and control unit controlled motor is stopped, and ground host machine stop recording probe stretches out the time and to control
Unit, which is sent, stops measurement signal；
Step (6)：Control unit, which receives, stops measurement signal, controlled motor reversion, probe recovery；Limit switch touches upper limit
Switch motion, control unit controlled motor are stopped, and measurement terminates.
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| CN107130645B (en) * | 2017-06-06 | 2022-09-02 | 长江三峡勘测研究院有限公司（武汉） | Multifunctional vibrating type pile well sediment detector |
| CN111042225B (en) * | 2019-12-25 | 2021-09-21 | 武汉中岩科技股份有限公司 | Device and method for accurately measuring thickness of sediment of cast-in-situ bored pile |
| CN111173048A (en) * | 2019-12-27 | 2020-05-19 | 杨燕军 | Device and method for detecting thickness of pore-forming bottom sediment based on penetration resistance method |
| CN118089629B (en) * | 2024-04-07 | 2024-09-03 | 广东智云工程科技有限公司 | Electronic measuring method and measuring instrument for spiral probe type sediment thickness |
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| CN1107771C (en) * | 1996-12-27 | 2003-05-07 | 辉固国际(香港)有限公司 | Mud sediment survey device |
| CN2695488Y (en) * | 2004-01-08 | 2005-04-27 | 张惇 | Device for measuring thickness of pile hole sediment |
| CN101705677B (en) * | 2009-11-27 | 2012-03-21 | 中国科学院武汉岩土力学研究所 | Method and device for automatically detecting thicknesses of penetration type dregs |
| KR101284054B1 (en) * | 2011-07-22 | 2013-07-10 | 한국지질자원연구원 | Mini Piezometer |
| CN102979111A (en) * | 2012-11-30 | 2013-03-20 | 中国十七冶集团有限公司 | Device for measuring sediment thickness of pile base of cast-in-situ bored pile |
| CN103243744B (en) * | 2013-05-30 | 2014-12-03 | 上海绿地建设(集团)有限公司 | Detecting device for sediment thickness of ground foundation engineering construction |
| CN205839821U (en) * | 2016-06-29 | 2016-12-28 | 武汉天宸伟业物探科技有限公司 | A kind of pressure inclination angle type sediment calibrator |
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