CN118168844B - Sampling device and method for geological engineering investigation - Google Patents
Sampling device and method for geological engineering investigation Download PDFInfo
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- CN118168844B CN118168844B CN202410565070.5A CN202410565070A CN118168844B CN 118168844 B CN118168844 B CN 118168844B CN 202410565070 A CN202410565070 A CN 202410565070A CN 118168844 B CN118168844 B CN 118168844B
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- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 230000009467 reduction Effects 0.000 claims abstract description 21
- 238000006073 displacement reaction Methods 0.000 claims abstract description 11
- 239000002689 soil Substances 0.000 claims description 26
- 238000012545 processing Methods 0.000 claims description 13
- 230000033228 biological regulation Effects 0.000 claims description 11
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- 230000001276 controlling effect Effects 0.000 abstract description 11
- 230000001105 regulatory effect Effects 0.000 abstract description 3
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Abstract
The invention belongs to the technical field of geological engineering investigation, and provides a sampling device and a sampling method for geological engineering investigation, wherein the sampling device for geological engineering investigation comprises a support frame, wherein the support frame is fixedly connected with a telescopic driving piece, the driving piece is connected with a driving motor, a vibration reduction mechanism is arranged between the driving piece and the driving motor, and the driving motor is fixedly connected with a sampling drill rod; the support frame rotates and is connected with the positioning seat, be provided with the locator that can be connected with ground on the positioning seat, be provided with adjusting part between locator and the support frame. According to the invention, the regulating and controlling system monitors the vertical vibration amplitude and the horizontal displacement trend of the sampling drill rod through the vibration sensor and the first pressure sensor, and then regulates and controls the sampling accuracy of the sampling drill rod at a preset sampling position through controlling the vibration reduction mechanism and the first positioner.
Description
Technical Field
The invention belongs to the technical field of geological engineering investigation, and particularly relates to a sampling device and a sampling method for geological engineering investigation.
Background
The geological engineering field is the pilot engineering field serving national economy construction by taking natural science and earth science as theoretical basis, taking geological survey, general investigation and exploration of mineral resources, geological structure of major engineering and engineering problems related to geological background as main objects, taking geology, geophysics and geochemistry technology, mathematical geologic method, remote sensing technology, testing technology, computer technology and the like as means.
The prior hydraulic engineering ring geological exploration sampling equipment with the publication number of CN114062029B relates to the technical field of geological exploration sampling. Including the automobile body, the one end fixed mounting of automobile body has the mount, still be provided with angle appearance, controller, electric putter and balance component on the automobile body, angle appearance fixed mounting is in the one end of automobile body, controller fixed mounting is in one side of angle appearance, electric putter fixed mounting is in one side of controller, just the controller respectively with angle appearance and electric putter electric connection, balance component includes circular shape water tank, concentric ring, fixed plate, push pedal and first locking part. When the drilling machine is used, the leveling work of the drilling assembly can be completed through the balance assembly and the lockable first rotating shaft, so that the drilling rod can be locked in the vertical direction even if the vehicle body is positioned at a position inclined at a certain angle, and the drilling precision is improved.
However, in the above scheme, when the surveyed ground has a certain angle, the vehicle body is at a position inclined at a certain angle, and the vehicle body tends to move downwards along the slope under the action of self gravity, so that the sampling rod is easy to receive horizontal thrust after being inserted into the ground; further, when the sampling rod inserts the vertical vibration behind the ground, the sampling rod can exert automobile body reverse thrust this moment, further reduces the connection stability of automobile body and ground, and the automobile body drives the sampling rod displacement to reduce the sampling precision of sampling rod corresponding position, can lead to the soil sample of different positions to produce when the vertical vibration power of sampling rod is too big simultaneously and mix, further reduce sampling precision.
Disclosure of Invention
The invention aims to provide a sampling device and a sampling method for geological engineering investigation, which aim to solve the technical problems that in the prior art, a vehicle body is positioned at a position inclined at a certain angle, and the vehicle body tends to move downwards along a slope under the action of self gravity, so that a sampling rod is easy to receive horizontal thrust after being inserted into the ground, and the sampling precision of the corresponding position of the sampling rod is reduced.
The invention discloses a sampling device for geological engineering investigation, which comprises a support frame, wherein the support frame is fixedly connected with a telescopic driving piece, the driving piece is connected with a driving motor, a vibration reduction mechanism is arranged between the driving piece and the driving motor, and the driving motor is fixedly connected with a sampling drill rod;
The support frame rotates and is connected with a positioning seat, a first positioner which can be connected with the ground is arranged on the positioning seat, an adjusting component is arranged between the first positioner and the support frame, the adjusting component can drive the support frame to rotate relative to the first positioner, the support frame is fixedly connected with a U-shaped display tube which can indicate whether a sampling drill rod is vertical or not, the two ends of the U-shaped display tube are provided with scale marks with the same height, liquid is arranged in the U-shaped display tube, when the sampling drill rod is in a vertical state, the two ends of the liquid are all positioned at the scale marks, and one end of the support frame is fixedly connected with an elastic support plate;
the bottom of the elastic support plate is slidably connected with a support seat, a limiting assembly is arranged between the support seat and the elastic support plate, the limiting assembly can horizontally limit the elastic support plate, a threaded telescopic rod is fixedly connected to the bottom of the support seat, a second positioner is rotationally connected to the threaded telescopic rod, the second positioner can be fixed with the threaded telescopic rod through bolts, and the second positioner can be fixedly spliced with a soil layer;
And the regulation and control system can monitor the vertical vibration amplitude and the horizontal displacement trend of the sampling drill rod, and then regulate and control the sampling accuracy of the sampling drill rod at a preset sampling position in a mode of controlling the vibration reduction mechanism and the first positioner.
The technical scheme is as follows: the vibration reduction mechanism comprises a fixed plate, an electric rod and a first spring;
The telescopic end fixedly connected with connecting plate of driving piece, connecting plate fixedly connected with a plurality of electric poles, the telescopic end of electric pole slides jointly and the through connection has the fixed plate, the equal fixedly connected with spring baffle of telescopic end of electric pole, the both sides of fixed plate all are provided with a spring, a spring housing is established in the electric pole outside, driving motor and fixed plate fixed connection, the outside cover of electric pole is equipped with the shock absorption foam.
The technical scheme is as follows: the adjusting component comprises an adjusting rod, a sliding seat, a connecting rod and a sliding plate;
The adjusting rod is rotationally connected with the positioning seat, the sliding seat is in sliding connection with the positioning seat, the sliding seat is in threaded connection with the adjusting rod, the sliding plate is in sliding connection with the supporting frame, and the connecting rod is rotationally connected between the sliding plate and the sliding seat.
The technical scheme is as follows: the limiting assembly comprises a guide rod, a second spring and a baffle;
The guide rod is fixedly connected with the supporting seat, the guide rod and the elastic supporting plate slide and are connected in a penetrating mode, a second spring and a baffle are sleeved on the outer side of the guide rod, and the baffle is arranged between the second spring and the elastic supporting plate.
The technical scheme is as follows: the regulation and control system comprises:
The monitoring module comprises a first pressure sensor and a vibration sensor, wherein the first pressure sensor is arranged between the baffle and the elastic support plate, and the first pressure sensor senses the horizontal pressure of the elastic support plate so as to acquire the horizontal movement trend of the sampling drill rod; the vibration sensor is arranged on the fixed plate, and the vertical vibration amplitude of the sampling drill rod is obtained through the vibration sensor;
the storage module is used for storing the data information acquired by the monitoring module and establishing a data set;
the processing module is used for retrieving the pressure information and the amplitude information at the current moment in the storage module and forming judgment information;
and the control module is used for receiving the judgment information and controlling the vibration reduction mechanism and the first positioner according to the judgment information.
The technical scheme is as follows: the processing module comprises:
The threshold unit is used for retrieving the pressure information of the first pressure sensor at the current moment in the storage module and the amplitude information of the vibration sensor, correspondingly comparing the pressure information with a preset pressure threshold and an amplitude threshold, and forming judgment information if at least one of the pressure information and the amplitude information exceeds the corresponding threshold;
The analysis unit is used for correlating the pressure value of the first pressure sensor at the current moment with the amplitude value of the vibration sensor to form a correlation value, comparing the formed correlation value at the current moment with a preset correlation value threshold, and forming judgment information if the correlation value at the current moment exceeds the correlation value threshold;
The specific processing mode of the analysis unit is as follows:
S1, acquiring pressure value information of a first pressure sensor at the current moment and amplitude value information of a vibration sensor at the current moment in a data set in a storage module, and marking the information as F 1、F2、...、Fi,X1、X2、...、Xi, wherein i represents a valued serial number;
S2, calculating a correlation value of the pressure value and the amplitude value based on the pressure value and the amplitude value at the current moment, wherein the calculation mode is as follows:
；
Wherein N is the total number of values from the current moment, F i is the pressure value at the current moment, and X i is the amplitude value at the current moment;
s3, comparing the obtained association value with a preset association value threshold value, and forming judgment information if the association value is larger than the preset threshold value;
S4, transmitting the formed judgment information to a control module for control of a related module.
The technical scheme is as follows: when the pressure value of the first pressure sensor exceeds the pressure threshold value, the control module controls the second positioner to start and penetrate deep into the soil layer.
The technical scheme is as follows: the threaded telescopic rod is connected with an auxiliary supporting mechanism, and the auxiliary supporting mechanism comprises a supporting rod, an elastic telescopic sleeve and a positioning plate;
The supporting rod is in threaded connection with a connecting seat on the outer wall of the threaded telescopic rod, the elastic telescopic sleeve is fixedly connected with the supporting rod, the telescopic end of the elastic telescopic sleeve is fixedly connected with the locating plate, the second pressure sensor is arranged on the surface of the locating plate, and when the pressure value of the second pressure sensor is smaller than a corresponding threshold value, the control module controls the second locator to start and deep into a soil layer.
A geological engineering investigation sampling method is applied to the sampling device for geological engineering investigation, and comprises the following steps:
S1: attaching the positioning seat to the slope, connecting and fixing the positioning seat and the slope through a first positioner, driving the support frame to rotate relative to the first positioner through the adjusting component, and observing the U-shaped display tube until the sampling drill rod is adjusted to be in a vertical state;
S2: under the drive of the support frame, the elastic support plate is in a vertical state, the threaded telescopic rod is adjusted to be vertically inserted into the ground, the second positioner is adjusted to be vertical to the threaded telescopic rod and fixed, and the second positioner is fixedly inserted into a ground soil layer;
S3: starting a driving piece and a driving motor, wherein the driving piece drives a sampling drill rod to be inserted into the ground for sampling;
s4: the regulation and control system monitors the vertical vibration amplitude and the horizontal displacement trend of the sampling drill rod, and then regulates and controls the sampling accuracy of the sampling drill rod at a preset sampling position in a mode of controlling the vibration reduction mechanism and the first positioner.
Compared with the prior art, the invention has the following beneficial effects:
1. the regulation and control system monitors the vertical vibration amplitude and the horizontal displacement trend of the sampling drill rod through the vibration sensor and the first pressure sensor, and then regulates and controls the sampling accuracy of the sampling drill rod at a preset sampling position through controlling the vibration reduction mechanism and the first positioner;
2. When the sampling drill rod collides with a hard soil block in a soil layer, the vibration of the sampling drill rod is damped through the vibration damping mechanism, so that the situation that soil samples in the sampling drill rod are mixed due to overlarge vertical vibration force of the sampling drill rod is avoided, and meanwhile, the connection stability of the support frame and the ground is influenced;
3. When the positioning seat is connected with the ground and loosens, the support frame has a sliding trend along the slope, the elastic support plate vertically elastically supports the support frame and the sampling drill rod, the limiting component horizontally limits the support frame and the sampling drill rod, the pressure value on the first pressure sensor reaches a pressure threshold value, the control module controls the first positioner to extend deep into the ground, and the connection stability of the positioning seat and the ground is improved;
4. When the pressure value on the first pressure sensor reaches the pressure threshold value, the regulating and controlling system controls the second positioner to extend into the soil layer, so that the connection stability of the threaded telescopic rod and the ground is improved, the situation that the threaded telescopic rod and the limiting component displace under the horizontal thrust of the elastic supporting plate to influence the supporting stability of the supporting seat on the elastic supporting plate and the subsequent detection accuracy of the first pressure sensor are influenced is avoided, and the sampling drill rod is ensured to be always vertically kept at a preset sampling position during sampling;
5. one end of the support frame is fixedly connected with the slope through the positioning seat, the other end of the support frame is spliced with the ground through the threaded telescopic rod, so that the connection stability of the support frame and the slope is effectively ensured, and the sliding trend of the support frame can be prevented through the threaded telescopic rod; under the drive of support frame, the elastic support plate is all vertical with the supporting seat and is placed, and the elastic support plate can slide relatively with the supporting seat in the horizontal direction to increase spacing subassembly's measurement accuracy.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the connection of the support frame to the sampling drill rod according to the present invention;
FIG. 3 is a schematic view of the structure of the adjusting assembly of the present invention;
FIG. 4 is a schematic view of a limiting assembly according to the present invention;
FIG. 5 is a schematic view of the auxiliary supporting mechanism according to the present invention;
FIG. 6 is a schematic diagram of the control principle of the control system in the present invention.
In the accompanying drawings: 1. a support frame; 2. a driving member; 3. sampling a drill rod; 4. an auxiliary supporting mechanism; 41. a support rod; 42. an elastic telescopic sleeve; 43. a positioning plate; 5. a vibration damping mechanism; 51. a fixing plate; 52. an electric lever; 53. a first spring; 6. a first positioner; 7. an adjustment assembly; 71. an adjusting rod; 72. a sliding seat; 73. a connecting rod; 74. a slide plate; 8. a limit component; 81. a guide rod; 82. a second spring; 83. a baffle; 9. a second positioner; 10. a U-shaped display tube; 11. an elastic support plate; 12. a support base; 13. a threaded telescopic rod; 14. a driving motor; 15. a connecting plate; 16. and a positioning seat.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
1-6, The sampling device for geological engineering investigation provided by the invention comprises a support frame 1, wherein the support frame 1 is fixedly connected with a telescopic driving piece 2, the driving piece 2 is connected with a driving motor 14, a vibration reduction mechanism 5 is arranged between the driving piece 2 and the driving motor 14, and the driving motor 14 is fixedly connected with a sampling drill rod 3;
The support frame 1 is rotationally connected with a positioning seat 16, a first positioner 6 capable of being connected with the ground is arranged on the positioning seat 16, an adjusting component 7 is arranged between the first positioner 6 and the support frame 1, the adjusting component 7 can drive the support frame 1 to rotate relative to the first positioner 6, the support frame 1 is fixedly connected with a U-shaped display tube 10 capable of indicating whether the sampling drill rod 3 is vertical or not, scale marks with the same height are arranged at two ends of the U-shaped display tube 10, liquid is arranged in the U-shaped display tube 10, when the sampling drill rod 3 is in a vertical state, two ends of the liquid are positioned at the scale marks, and one end of the support frame 1 is fixedly connected with an elastic support plate 11;
The bottom of the elastic supporting plate 11 is slidably connected with a supporting seat 12, a limiting component 8 is arranged between the supporting seat 12 and the elastic supporting plate 11, the limiting component 8 can horizontally limit the elastic supporting plate 11, a threaded telescopic rod 13 is fixedly connected to the bottom of the supporting seat 12, a second positioner 9 is rotatably connected to the threaded telescopic rod 13, the second positioner 9 can be fixed with the threaded telescopic rod 13 through bolts, and the second positioner 9 can be fixedly spliced with a soil layer;
the regulation and control system can monitor the vertical vibration amplitude and the horizontal displacement trend of the sampling drill rod 3, and then regulate and control the sampling accuracy of the sampling drill rod 3 at a preset sampling position by controlling the vibration reduction mechanism 5 and the first positioner 6;
The first locator 6 and the second locator 9 are composed of a motor, an electric telescopic rod and an inserting rod, the inserting rod is elastically connected with the electric telescopic rod, a spiral blade is arranged outside the inserting rod, the electric telescopic rod is fixedly connected with an output shaft of the motor, the motor drives the inserting rod to rotate, and meanwhile the electric telescopic rod pushes the inserting rod to be inserted into the ground.
When the device is used, the positioning seat 16 is attached to a slope, the positioning seat 16 is fixedly connected with the slope through the first positioner 6, the adjusting component 7 drives the support frame 1 to rotate relative to the first positioner 6, the U-shaped display tube 10 is observed until the sampling drill rod 3 is adjusted to be in a vertical state, at the moment, the elastic support plate 11 is also in a vertical state under the driving of the support frame 1, the threaded telescopic rod 13 is adjusted to be vertically inserted into the ground, the second positioner 9 is adjusted to be vertical to the threaded telescopic rod 13 and is fixed, the second positioner 9 is fixedly inserted into a soil layer of the ground, the driving piece 2 and the driving motor 14 are started, and the driving piece 2 drives the sampling drill rod 3 to be inserted into the ground for sampling;
In the process, when the sampling drill rod 3 collides with a hard soil block in a soil layer, the sampling drill rod 3 is damped through the damping mechanism 5, so that the situation that the soil sample in the sampling drill rod 3 is mixed due to overlarge vertical vibration force of the sampling drill rod 3 is avoided, and meanwhile, the connection stability of the support frame 1 and the ground is influenced;
One end of the support frame 1 is fixedly connected with the slope through the positioning seat 16, the other end of the support frame 1 is spliced with the ground through the threaded telescopic rod 13, so that the connection stability of the support frame 1 and the slope is effectively ensured, and the sliding trend of the support frame 1 can be prevented through the threaded telescopic rod 13;
The elastic support plate 11 carries out vertical elastic support to the support frame 1 and the sampling drill rod 3, the limiting component 8 carries out horizontal limiting to the support frame 1 and the sampling drill rod 3, and meanwhile the vibration reduction mechanism 5 carries out vertical vibration reduction to the sampling drill rod 3.
Under the drive of support frame 1, elastic support plate 11 and supporting seat 12 are all vertically placed, and elastic support plate 11 and supporting seat 12 can slide relatively in the horizontal direction to increase spacing subassembly 8's measurement accuracy.
As shown in fig. 2, the vibration reduction mechanism 5 of the sampling device for geological engineering survey provided by the invention comprises a fixed plate 51, an electric rod 52 and a number one spring 53;
The telescopic end fixedly connected with connecting plate 15 of driving piece 2, connecting plate 15 fixedly connected with a plurality of electric poles 52, the telescopic end of electric pole 52 slides jointly and the through connection has fixed plate 51, the equal fixedly connected with spring baffle of telescopic end of electric pole 52, the both sides of fixed plate 51 all are provided with spring 53, spring 53 cover is established in electric pole 52 outsidely, driving motor 14 and fixed plate 51 fixed connection, the outside cover of electric pole 52 is equipped with the shock-absorbing foam.
In the vibration reduction mechanism 5, the fixed plate 51 is elastically limited by the first spring 53, and the first spring 53 absorbs vibration force generated when the sampling drill rod 3 samples by matching with vibration absorption foam; the electric rod 52 is driven to shrink, the electric rod 52 presses the first spring 53 through the spring baffle plate, and the vibration amplitude of the fixing plate 51 can be reduced, so that the stability of the sampling drill rod 3 is improved.
As shown in fig. 3, the invention provides a sampling device for geological engineering investigation, wherein the adjusting assembly 7 comprises an adjusting rod 71, a sliding seat 72, a connecting rod 73 and a sliding plate 74;
the adjusting rod 71 is rotatably connected with the positioning seat 16, the sliding seat 72 is slidably connected with the positioning seat 16, the sliding seat 72 is in threaded connection with the adjusting rod 71, the sliding plate 74 is slidably connected with the supporting frame 1, and the connecting rod 73 is rotatably connected between the sliding plate 74 and the sliding seat 72.
In the adjusting assembly 7, after the fixing of the positioning seat 16 and the slope is completed, the adjusting rod 71 is rotated, the adjusting rod 71 drives the sliding seat 72 to slide along the positioning seat 16 through threaded transmission, at this time, the sliding seat 72 pulls the sliding plate 74 through the connecting rod 73, and the sliding plate 74 drives the supporting frame 1 to rotate around the positioning seat 16, and according to the indication of the liquid position in the U-shaped display tube 10, the adjusting rod 71 is adjusted until the sampling drill rod 3 is in a vertical state.
As shown in fig. 4, in order to provide a sampling device for geological engineering survey according to the present invention, the limit assembly 8 includes a guide rod 81, a No. two spring 82, and a baffle 83;
the guide rod 81 is fixedly connected with the supporting seat 12, the guide rod 81 and the elastic supporting plate 11 slide and are connected in a penetrating manner, a second spring 82 and a baffle 83 are sleeved on the outer side of the guide rod 81, and the baffle 83 is arranged between the second spring 82 and the elastic supporting plate 11.
In the limiting assembly 8, the baffle 83 is pushed by the second spring 82 to elastically limit the elastic support plate 11.
As shown in fig. 6, the sampling device for geological engineering investigation provided by the invention, the regulation and control system comprises:
The monitoring module comprises a first pressure sensor and a vibration sensor, wherein the first pressure sensor is arranged between the baffle 83 and the elastic support plate 11, and the first pressure sensor senses the horizontal pressure of the elastic support plate 11 so as to acquire the horizontal movement trend of the sampling drill rod 3; the vibration sensor is arranged on the fixed plate 51, and the vertical vibration amplitude of the sampling drill rod 3 is obtained through the vibration sensor;
The storage module is used for storing the data information acquired by the monitoring module and establishing a data set, and is a computer memory;
The processing module is used for retrieving the pressure information and the amplitude information at the current moment in the storage module and forming judgment information, and the processing module is preferably a CPU processor;
the control module is used for receiving the judging information and controlling the vibration damping mechanism 5 and the first positioner 6 according to the judging information, and the control module is preferably a PLC controller.
The processing module comprises:
The threshold unit is used for retrieving the pressure information of the first pressure sensor at the current moment in the storage module and the amplitude information of the vibration sensor, correspondingly comparing the pressure information with a preset pressure threshold and an amplitude threshold, and forming judgment information if at least one of the pressure information and the amplitude information exceeds the corresponding threshold;
The analysis unit is used for correlating the pressure value of the first pressure sensor at the current moment with the amplitude value of the vibration sensor to form a correlation value, comparing the formed correlation value at the current moment with a preset correlation value threshold, and forming judgment information if the correlation value at the current moment exceeds the correlation value threshold;
the specific values of the pressure threshold value, the amplitude threshold value and the associated value threshold value can be set by a user according to the use requirement.
The specific processing mode of the analysis unit is as follows:
S1, acquiring pressure value information of a first pressure sensor at the current moment and amplitude value information of a vibration sensor at the current moment in a data set in a storage module, and marking the information as F 1、F2、...、Fi,X1、X2、...、Xi, wherein i represents a valued serial number;
S2, calculating a correlation value of the pressure value and the amplitude value based on the pressure value and the amplitude value at the current moment, wherein the calculation mode is as follows:
；
Wherein N is the total number of values from the current moment, F i is the pressure value at the current moment, and X i is the amplitude value at the current moment;
s3, comparing the obtained association value with a preset association value threshold value, and forming judgment information if the association value is larger than the preset threshold value;
S4, transmitting the formed judgment information to a control module for control of a related module.
According to the sampling device for geological engineering investigation, when the pressure value of the first pressure sensor exceeds the pressure threshold value, the control module controls the second positioner 9 to start and penetrate into the soil layer.
As shown in fig. 5, in order to provide a sampling device for geological engineering survey according to the present invention, the threaded telescopic rod 13 is connected with an auxiliary supporting mechanism 4, and the auxiliary supporting mechanism 4 includes a supporting rod 41, an elastic telescopic sleeve 42 and a positioning plate 43;
The supporting rod 41 is in threaded connection with a connecting seat on the outer wall of the threaded telescopic rod 13, the supporting rod 41 is fixedly connected with an elastic telescopic sleeve 42, the telescopic end of the elastic telescopic sleeve 42 is fixedly connected with a positioning plate 43, a second pressure sensor is arranged on the surface of the positioning plate 43, and when the pressure value of the second pressure sensor is smaller than a corresponding threshold value, the control module controls the second positioner 9 to start and extend into a soil layer.
Working principle:
The geological engineering investigation sampling method is applied to the geological engineering investigation sampling device in the embodiment, and comprises the following steps:
S1: attaching the positioning seat 16 to the slope, connecting and fixing the positioning seat 16 and the slope through the first positioner 6, driving the support frame 1 to rotate relative to the first positioner 6 through the adjusting component 7, and observing the U-shaped display tube 10 until the sampling drill rod 3 is adjusted to be in a vertical state;
s2: under the drive of the support frame 1, the elastic support plate 11 is in a vertical state as well, the threaded telescopic rod 13 is adjusted to be vertically inserted into the ground, the second positioner 9 is adjusted to be vertical to the threaded telescopic rod 13 and fixed, and the second positioner 9 is fixedly inserted into a ground soil layer;
S3: starting the driving piece 2 and the driving motor 14, and driving the sampling drill rod 3 to be inserted into the ground by the driving piece 2 for sampling;
S4: the regulation and control system monitors the vertical vibration amplitude and the horizontal displacement trend of the sampling drill rod 3, and then regulates and controls the sampling accuracy of the sampling drill rod 3 at a preset sampling position in a mode of controlling the vibration reduction mechanism 5 and the first positioner 6.
In the process, when the sampling drill rod 3 collides with a hard soil block in a soil layer, the sampling drill rod 3 is damped through the damping mechanism 5, so that the situation that the soil sample in the sampling drill rod 3 is mixed due to overlarge vertical vibration force of the sampling drill rod 3 is avoided, and meanwhile, the connection stability of the support frame 1 and the ground is influenced;
When the positioning seat 16 is connected with the ground and loosens, and the support frame 1 has a sliding trend along the slope, the elastic support plate 11 carries out vertical elastic support on the support frame 1 and the sampling drill rod 3, meanwhile, the limiting component 8 carries out horizontal limiting on the support frame 1 and the sampling drill rod 3, the pressure value on the first pressure sensor reaches a pressure threshold, and the control module controls the first positioner 6 to extend deep into the ground, so that the connection stability of the positioning seat 16 and the ground is improved;
Further, when the pressure value on the first pressure sensor reaches the pressure threshold, the regulating and controlling system controls the second positioner 9 to extend into the soil layer, so that the connection stability of the threaded telescopic rod 13 and the ground is increased, displacement of the threaded telescopic rod 13 and the limiting component 8 under the horizontal thrust of the elastic supporting plate 11 is avoided, the supporting stability of the supporting seat 12 on the elastic supporting plate 11 is influenced, the subsequent detection accuracy of the first pressure sensor is influenced, and the sampling drill rod 3 is ensured to be always vertically kept at a preset sampling position during sampling;
further, the supporting rod 41 supports the threaded telescopic rod 13 in an auxiliary manner, when the pressure value of the first pressure sensor exceeds a pressure threshold, the threaded telescopic rod 13 and the limiting component 8 displace under the horizontal thrust of the elastic supporting plate 11, the threaded telescopic rod 13 moves along the slope, the pretightening force between the elastic telescopic sleeve 42 and the slope soil layer decreases, and when the pressure value of the second pressure sensor on the elastic telescopic sleeve 42 is smaller than a corresponding threshold, the control module controls the second positioner 9 to continuously extend into the soil layer until the pressure value of the second pressure sensor is larger than the corresponding threshold, and the second positioner 9 helps the threaded telescopic rod 13 to reset;
One end of the support frame 1 is fixedly connected with the slope through the positioning seat 16, the other end of the support frame 1 is spliced with the ground through the threaded telescopic rod 13, so that the connection stability of the support frame 1 and the slope is effectively ensured, and the sliding trend of the support frame 1 can be prevented through the threaded telescopic rod 13; under the drive of the support frame 1, the elastic support plate 11 and the support seat 12 are vertically arranged, and the elastic support plate 11 and the support seat 12 can relatively slide in the horizontal direction, so that the measurement accuracy of the limiting assembly 8 is improved;
Under the monitoring effect of a pressure sensor and a second pressure sensor, through the cooperation of auxiliary support mechanism 4 and a second locator 9, the vertical stability of screw telescopic link 13 has effectively been guaranteed, has avoided under the effect of support frame 1 pressure, and supporting seat 12 takes place displacement or slope, reduces spacing effect and the monitoring effect of a pressure sensor of spacing subassembly 8 to influence the vertical stability of drilling rod 3.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. The sampling device for geological engineering investigation comprises a support frame (1), and is characterized in that the support frame (1) is fixedly connected with a telescopic driving piece (2), the driving piece (2) is connected with a driving motor (14), a vibration reduction mechanism (5) is arranged between the driving piece (2) and the driving motor (14), and the driving motor (14) is fixedly connected with a sampling drill rod (3);
the device is characterized in that the support frame (1) is rotationally connected with a positioning seat (16), a first positioner (6) capable of being connected with the ground is arranged on the positioning seat (16), an adjusting component (7) is arranged between the first positioner (6) and the support frame (1), the adjusting component (7) can drive the support frame (1) to rotate relative to the first positioner (6), the support frame (1) is fixedly connected with a U-shaped display tube (10) capable of indicating whether the sampling drill rod (3) is vertical or not, and one end of the support frame (1) is fixedly connected with an elastic support plate (11);
The bottom of the elastic support plate (11) is slidably connected with a support seat (12), a limiting component (8) is arranged between the support seat (12) and the elastic support plate (11), the limiting component (8) can horizontally limit the elastic support plate (11), a threaded telescopic rod (13) is fixedly connected to the bottom of the support seat (12), a second positioner (9) is rotationally connected to the threaded telescopic rod (13), the second positioner (9) can be fixed with the threaded telescopic rod (13) through bolts, and the second positioner (9) can be fixedly connected with a soil layer in an inserting mode;
The first positioner (6) and the second positioner (9) are composed of a motor, an electric telescopic rod and an inserting rod, the inserting rod is elastically connected with the electric telescopic rod, a spiral blade is arranged outside the inserting rod, the electric telescopic rod is fixedly connected with an output shaft of the motor, the motor drives the inserting rod to rotate, and meanwhile the electric telescopic rod pushes the inserting rod to be inserted into the ground;
the regulation and control system can monitor the vertical vibration amplitude and the horizontal displacement trend of the sampling drill rod (3), and then regulate and control the sampling accuracy of the sampling drill rod (3) at a preset sampling position in a mode of controlling the vibration reduction mechanism (5) and the first positioner (6);
the vibration reduction mechanism (5) comprises a fixed plate (51), an electric rod (52) and a first spring (53); the telescopic ends of the driving pieces (2) are fixedly connected with a connecting plate (15), the connecting plate (15) is fixedly connected with a plurality of electric rods (52), the telescopic ends of the electric rods (52) slide together and are connected with a fixing plate (51) in a penetrating manner, spring baffles are fixedly connected to the telescopic ends of the electric rods (52), a first spring (53) is arranged on two sides of the fixing plate (51), the first spring (53) is sleeved outside the electric rods (52), the driving motor (14) is fixedly connected with the fixing plate (51), and vibration absorbing foam is sleeved outside the electric rods (52); the electric rod (52) is driven to shrink, the electric rod (52) extrudes a first spring (53) through a spring baffle plate, and the vibration amplitude of the fixed plate (51) can be reduced, so that the stability of the sampling drill rod (3) is improved;
The limiting assembly (8) comprises a guide rod (81), a second spring (82) and a baffle (83); the guide rod (81) is fixedly connected with the supporting seat (12), the guide rod (81) is in sliding and penetrating connection with the elastic supporting plate (11), a second spring (82) and a baffle plate (83) are sleeved outside the guide rod (81), and the baffle plate (83) is arranged between the second spring (82) and the elastic supporting plate (11);
the regulation and control system comprises:
The monitoring module comprises a first pressure sensor and a vibration sensor, wherein the first pressure sensor is arranged between the baffle (83) and the elastic support plate (11), and the horizontal pressure of the elastic support plate (11) is sensed by the first pressure sensor so as to acquire the horizontal movement trend of the sampling drill rod (3); the vibration sensor is arranged on the fixed plate (51), and the vertical vibration amplitude of the sampling drill rod (3) is obtained through the vibration sensor;
the storage module is used for storing the data information acquired by the monitoring module and establishing a data set;
the processing module is used for retrieving the pressure information and the amplitude information at the current moment in the storage module and forming judgment information;
The control module is used for receiving the judging information and controlling the vibration reduction mechanism (5) and the first positioner (6) according to the judging information;
The processing module comprises: the threshold unit is used for retrieving the pressure information of the first pressure sensor at the current moment in the storage module and the amplitude information of the vibration sensor, correspondingly comparing the pressure information with a preset pressure threshold and an amplitude threshold, and forming judgment information if at least one of the pressure information and the amplitude information exceeds the corresponding threshold;
When the pressure value on the first pressure sensor reaches the pressure threshold value, the control module controls the first positioner (6) to go deep into the ground, and the connection stability of the positioning seat (16) and the ground is improved.
2. The sampling device for geological engineering survey according to claim 1, characterized in that said adjustment assembly (7) comprises an adjustment rod (71), a sliding seat (72), a connecting rod (73) and a sliding plate (74);
The adjusting rod (71) is rotationally connected with the positioning seat (16), the sliding seat (72) is slidingly connected with the positioning seat (16), the sliding seat (72) is in threaded connection with the adjusting rod (71), the sliding plate (74) is slidingly connected with the supporting frame (1), and the connecting rod (73) is rotationally connected between the sliding plate (74) and the sliding seat (72).
3. The sampling device for geological engineering survey of claim 1, wherein the processing module further comprises:
the analysis unit is used for correlating the pressure value of the first pressure sensor at the current moment with the amplitude value of the vibration sensor to form a correlation value, comparing the formed correlation value at the current moment with a preset correlation value threshold, and forming judgment information if the correlation value at the current moment exceeds the correlation value threshold;
The specific processing mode of the analysis unit is as follows:
S1, acquiring pressure value information of a first pressure sensor at the current moment and amplitude value information of a vibration sensor at the current moment in a data set in a storage module, and marking the information as F 1、F2、...、Fi,X1、X2、...、Xi, wherein i represents a valued serial number;
S2, calculating a correlation value of the pressure value and the amplitude value based on the pressure value and the amplitude value at the current moment, wherein the calculation mode is as follows:
Wherein N is the total number of values from the current moment, F i is the pressure value at the current moment, and X i is the amplitude value at the current moment;
s3, comparing the obtained association value with a preset association value threshold value, and forming judgment information if the association value is larger than the preset threshold value;
S4, transmitting the formed judgment information to a control module for control of a related module.
4. The sampling device for geological engineering investigation according to claim 1, wherein the control module controls the second positioner (9) to be started and to go deep into the soil layer when the pressure value of the first pressure sensor exceeds the pressure threshold value.
5. A geological engineering survey sampling method, characterized by being applied to the geological engineering survey sampling device according to any one of claims 1-4, comprising the following steps:
S1: attaching the positioning seat (16) to the slope, connecting and fixing the positioning seat (16) with the slope through the first positioner (6), driving the support frame (1) to rotate relative to the first positioner (6) through the adjusting component (7), and observing the U-shaped display tube (10) until the sampling drill rod (3) is adjusted to be in a vertical state;
S2: under the drive of the support frame (1), the elastic support plate (11) is in a vertical state as well, the threaded telescopic rod (13) is adjusted to be vertically inserted into the ground, the second positioner (9) is adjusted to be vertical to the threaded telescopic rod (13) and fixed, and the second positioner (9) is fixedly inserted into a ground soil layer;
S3: starting a driving piece (2) and a driving motor (14), wherein the driving piece (2) drives a sampling drill rod (3) to be inserted into the ground for sampling;
S4: the regulation and control system monitors the vertical vibration amplitude and the horizontal displacement trend of the sampling drill rod (3), and then regulates and controls the sampling accuracy of the sampling drill rod (3) at a preset sampling position in a mode of controlling the vibration reduction mechanism (5) and the first positioner (6);
The regulation and control system invokes pressure information and amplitude information at the current moment in the storage module through the processing module and forms judgment information; the control module receives the judgment information and controls the vibration reduction mechanism (5) and the first positioner (6) according to the judgment information;
The processing module comprises a threshold unit, wherein the threshold unit is used for retrieving pressure information of a first pressure sensor at the current moment in the storage module and amplitude information of the vibration sensor, correspondingly comparing the pressure information with a preset pressure threshold and an amplitude threshold, and forming judgment information if at least one of the pressure information and the amplitude information exceeds the corresponding threshold;
When the pressure value on the first pressure sensor reaches a pressure threshold value, the control module controls the first positioner (6) to go deep into the ground, so that the connection stability of the positioning seat (16) and the ground is improved;
The electric rod (52) is driven to shrink, the electric rod (52) extrudes a first spring (53) through the spring baffle plate, and the vibration amplitude of the fixed plate (51) can be reduced, so that the stability of the sampling drill rod (3) is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410565070.5A CN118168844B (en) | 2024-05-09 | Sampling device and method for geological engineering investigation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410565070.5A CN118168844B (en) | 2024-05-09 | Sampling device and method for geological engineering investigation |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN216207703U (en) * | 2021-10-11 | 2022-04-05 | 张宝河 | Landslide investigation probing sampling device |
| CN217781896U (en) * | 2022-03-22 | 2022-11-11 | 中国电建集团华东勘测设计研究院有限公司 | Temporary reinforcing device based on slope protection dam body emergency danger |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN216207703U (en) * | 2021-10-11 | 2022-04-05 | 张宝河 | Landslide investigation probing sampling device |
| CN217781896U (en) * | 2022-03-22 | 2022-11-11 | 中国电建集团华东勘测设计研究院有限公司 | Temporary reinforcing device based on slope protection dam body emergency danger |
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