CN114658414A - Hole descending detection method of borehole television control system and borehole television monitoring equipment - Google Patents
Hole descending detection method of borehole television control system and borehole television monitoring equipment Download PDFInfo
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- CN114658414A CN114658414A CN202210334886.8A CN202210334886A CN114658414A CN 114658414 A CN114658414 A CN 114658414A CN 202210334886 A CN202210334886 A CN 202210334886A CN 114658414 A CN114658414 A CN 114658414A
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- 238000001514 detection method Methods 0.000 title claims abstract description 34
- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 110
- 238000005553 drilling Methods 0.000 claims abstract description 99
- 229910052742 iron Inorganic materials 0.000 claims abstract description 55
- 238000004891 communication Methods 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 230000009471 action Effects 0.000 claims abstract description 7
- 239000000523 sample Substances 0.000 claims description 127
- 238000000034 method Methods 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 19
- 230000003247 decreasing effect Effects 0.000 claims description 14
- 238000005070 sampling Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 4
- 238000012806 monitoring device Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000003578 releasing effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/002—Survey of boreholes or wells by visual inspection
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/023—Arrangements for connecting cables or wirelines to downhole devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/001—Self-propelling systems or apparatus, e.g. for moving tools within the horizontal portion of a borehole
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/04—Measuring depth or liquid level
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a hole-discharging detection method of a drilling television control system and a drilling television monitoring device; the lower hole detection method of the drilling television control system comprises the following steps: judging whether the hole descending action starts to be executed or not, judging whether a communication fault exists or not, judging whether an obstacle exists or not, and judging whether fine adjustment is performed or not; the drilling television monitoring equipment comprises a power box body, wherein a display screen is fixedly connected to one side of the power box body, and a controller is connected to the display screen through a circuit and is connected with a communication fault counter through the controller; the power box body is characterized in that corresponding avoiding holes are formed in the end walls of the upper end and the lower end of the power box body, iron rods are inserted in the two avoiding holes and can longitudinally slide relative to the two avoiding holes, a power mechanism is arranged in the power box body and controls the iron rods to longitudinally move through the power mechanism, three support rods are arranged on the edge of the bottom end of the power box body at equal intervals, and a wire assembly is arranged on one support rod.
Description
Technical Field
The invention relates to the field of geotechnical engineering, in particular to a lower hole detection method of a borehole television control system and borehole television monitoring equipment.
Background
In recent years, the borehole television is widely applied to the fields of geological engineering, geotechnical engineering and the like to detect the quality of rock strata due to the characteristics of simple operation, intuitive detection results and the like, and provides guidance information for engineering construction. However, in the field construction process, the final hole forming effect is often not ideal due to the influence of factors such as rock formation quality and a drilling machine, the observation result of the current drilling television system in the market in the drilling hole with poor hole forming effect is poor, and many problems are encountered in the image collection process, for example:
1. when a deep drill hole is encountered, the shaking amplitude of the probe of the drilling television in the drill hole is large, and the probe of the drilling television cannot acquire a hole wall image in a stable and centered posture, so that the image after synthesis processing is discontinuous and poor in effect;
2. the general hole wall has more silt and gravels, which can generate great influence on the collection of the hole wall information, and meanwhile, the gravels slide off, which can cause the phenomenon that a drilling television probe is clamped in a drill hole, can not collect complete hole wall images, and can cause the probe to be clamped and can not be taken out in serious cases, thereby causing unnecessary loss;
3. at present, in many drilling television systems, a signal wire is slowly lowered manually through a cable winch, and then a depth gauge records the length of the passed cable to determine the corresponding depth of a probe in a drill hole, but the signal wire may be knotted in the lowering process, so that the depth positioning is inaccurate;
4. in the process of lowering the drilling television probe, a lengthened thin iron rod is connected behind the probe, but too deep drilling causes the rear-connected iron rod to be too long and heavy, manpower cannot be held for a long time, the lowering speed is not easy to control, and the lens rotates back and forth, so that the acquired hole wall image is unnatural and distorted;
5. the operation of the current drilling television system is complex, the descending and ascending of the drilling television probe are manually controlled, when the traditional drilling television system probe descends to the bottom of a hole, the probe cannot be accurately and properly stopped from descending according to the feeling of an operator when the probe is descended and the depth recorded by a depth meter, and when a hole collapses or is blocked by foreign matters in a drilling hole, the operator cannot know and judge the internal condition of the drilling hole in detail, so that the drilling television probe can be damaged when the drilling television probe continues to descend.
Disclosure of Invention
The invention aims to solve the problems and provides a borehole television monitoring device and a borehole detection method of a borehole television control system, which are simple in structure and convenient to operate.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a hole-punching detection method of a drilling television control system comprises a controller, a communication fault counter, a depth instrument, a distance sensor A, a distance sensor B, a distance sensor C, a distance sensor D, a display screen, a power motor and a drilling television probe; the device comprises a communication fault counter, a depth meter, a distance sensor A, a distance sensor B, a distance sensor C, a distance sensor D, a display screen, a power motor and a drilling television probe, wherein the power motor is in transmission connection with an iron rod for drilling and controls the iron rod to descend; the lower hole detection method of the drilling television control system comprises the following steps:
s1, starting;
s2, the controller detects each signal wire, and when the signal wire is not normally connected, the step S3 is executed; when the signal line connection is normal, step S4 is executed;
s3, popping up a signal line reconnection prompt on the display screen, and executing the next step after the signal line is normally connected;
s4, when the borehole TV probe reaches the hole, the CNT is controlled to communicate with the fault counter1Equal to 0, depth gauge L equal to 0;
s5, selecting manual control or drilling television control system control by an operator according to the field condition, and executing the step S6 when the operator selects the manual control; when the operator selects the control of the drilling television control system, executing the step S7;
s6, when manual control is selected, the power motor is manually controlled to execute descending operation, and the hole wall information is collected through the drilling television probe;
s7, judging whether the hole punching action is started or not; when the judgment is made, if any one of the first condition and the second condition is satisfied within the time period of T1, executing step S10; if none of the conditions is met, executing step S8;
the first condition is as follows: the value of the distance sensor A is continuously changed in a descending way; and a second condition: correspondingly subtracting the sampling value of the front 10s from the sampling value of the rear 10s of the distance sensor A, wherein 80% of the obtained difference value is larger than 200 mm;
s8, waiting for the hole dropping action to start execution; after waiting for T2 time period, the communication failure counter CNT is controlled1Adding 1 to the value, and making the communication failure counter CNT once every time delay1CNT with previous value1Adding 1 to the value;
s9, judging whether to useCommunication failure exists; counter CNT if communication failure1>n, performing step S17, otherwise performing step S6;
s10, the power motor starts to work, the drilling television probe descends in the hole along with the iron rod, and the depth gauge records the working time TX of the power motor;
s11, in the descending process of the borehole television probe, if the numerical value of the distance sensor A is larger than 5cm, and the numerical value of the distance sensor B, the numerical value of the distance sensor C and the numerical value of the distance sensor D are larger than 5cm, executing a step S12; otherwise, go to step S15;
s12, popping up an obstacle prompt on a display screen, enabling a power motor to pause for a time period of T3, and waiting for manual fine adjustment of the position of the drilling television probe to avoid an obstacle;
s13, judging whether the position of the drilling television probe is finely adjusted manually or not; judging whether the value of the distance sensor A is continuously increased and decreased within a time period T4, if so, executing a step S10, and if not, executing a step S14;
s14, controlling the power motor to execute a lifting command by the controller, enabling the iron rod to lift by 20cm, and recording the lifting time TS of the power motor by the depth meter;
s15, in the descending process of the borehole television probe, when the numerical value of the distance sensor A is less than 5cm, and two of the numerical value of the distance sensor B, the numerical value of the distance sensor C and the numerical value of the distance sensor D are more than 5cm, judging that the borehole television probe reaches the bottom of a borehole, otherwise, returning to the step S10;
s16, when the drilling television probe reaches the bottom of the drill hole, popping up a lower hole detection completion prompt on a display screen;
s17, displaying that the lower hole detection is not completed on the display screen;
and S18, ending.
Further, the T1 is 30 s; t2 is 20 s; t3 is 30 s; t4 is 30 s; n is 3.
Further, in step S13, the continuously increasing and decreasing changes are: in the time period t4, p continuous sampling points form an increasing or decreasing relation with the sampling value of the distance sensor A in the borehole; p is 5.
A drilling television monitoring device comprises a power box body, wherein a display screen is fixedly connected to one side of the power box body, and a controller is connected to a display screen line and is connected with a communication fault counter through the controller; the power box body is characterized in that corresponding avoiding holes are formed in the end walls of the upper end and the lower end of the power box body, iron rods are inserted in the two avoiding holes and can longitudinally slide relative to the two avoiding holes, a power mechanism is arranged in the power box body and controls the iron rods to longitudinally move through the power mechanism, three support rods are arranged on the edge of the bottom end of the power box body at equal intervals, and a wire assembly is arranged on one support rod.
Furthermore, the power mechanism comprises a first rotating wheel and a second rotating wheel, the first rotating wheel and the second rotating wheel are connected with the inner side wall of the power box body through pin shafts, the axial directions of the first rotating wheel and the second rotating wheel are parallel, wheel grooves of the first rotating wheel and wheel grooves of the second rotating wheel are respectively positioned on two radial sides of the iron rod, and a clamping state is kept between the wheel grooves of the first rotating wheel and the second rotating wheel and the outer side wall of the iron rod; and the power box body is fixedly connected with a power motor, and the power motor is in transmission connection with the first rotating wheel or the second rotating wheel.
Furthermore, the wire assembly comprises a first guide wheel and a second guide wheel, the first guide wheel and the second guide wheel are connected with the supporting rod through pin shafts, the axial directions of the first guide wheel and the second guide wheel are parallel, the second guide wheel is positioned below the first guide wheel, one end of the signal wire sequentially penetrates through a wheel groove at the left end of the second guide wheel and a wheel groove at the right end of the first guide wheel and then is connected with a drilling television probe fixedly connected to the bottom end of the iron rod, and the other end of the signal wire is connected with the controller.
Furthermore, the borehole television monitoring equipment also comprises a guide assembly, wherein the guide assembly is arranged among the three support rods; the guide assembly comprises a guide ring and three telescopic rods, the three telescopic rods are arranged on the outer side of the circumference of the guide ring at equal intervals and are arranged at equal heights, one ends of the three telescopic rods are respectively connected with the three supporting rod pin shafts, and the other ends of the three telescopic rods are respectively connected with the outer side wall of the guide ring through pin shafts; the bottom end of the iron rod penetrates through the guide ring, and the iron rod can longitudinally slide relative to the guide ring.
Furthermore, a distance sensor A, a distance sensor B, a distance sensor C and a distance sensor D are arranged on the borehole television probe, a depth meter is connected to the power motor, and the borehole television probe, the power motor and the depth meter are all connected with the controller through lines.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention better solves the following problems in the current borehole television observation: 1. the borehole television probe cannot keep a uniform and centered posture to acquire a borehole wall image; 2. when the drill hole is deep, the iron rod can not be held by manpower for a long time to lower the probe; 3. the depth gauge cannot be fixed, and a signal wire cannot be conveniently fixed on an iron rod when the probe is lowered; 4. when the drilling condition is poor, the problem that the drilling television probe is blocked due to silt and broken stone attached to the wall of the drilling hole is solved; 5. the problem that the probe of the drilling television cannot be avoided and the probe is possibly damaged when the probe encounters an obstacle in drilling; 6. determining the problem of inferior knotting of the signal wire when the hole is deep according to the length of the signal wire; 7. the problem that the lowering of the operation probe and the image in the observation hole can not be carried out simultaneously;
when the drilling television probe is used, the iron rod can sequentially penetrate through the avoidance hole at the top end of the power box body, the power mechanism and the avoidance hole at the bottom end of the power box body and then is connected with the drilling television probe, the iron rod and the drilling television probe are driven by the power mechanism to move up and down at a constant speed, and the movement detection operation of the drilling television probe in a drill hole is realized; the drilling television detection device has stable movement and good imaging effect, and meanwhile, the iron rod does not need to be operated by manpower in the whole operation process, so that the labor amount of operators is reduced, the whole process is time-saving and labor-saving, and convenience is brought to the drilling television detection operation.
The invention can determine the descending depth of the drilling television probe according to the rotating speed and the working time of the power motor, can avoid the difficulty in fixing the depth gauge and the problem of signal line redundancy caused by using a signal line to record the depth, and simultaneously, through the design of the guide assembly, the iron rod can be always positioned in the middle of the drilling in the observation process, thereby improving the detection precision of the drilling television probe.
The invention can realize the image collection operation process of the hole wall through the display screen, and can carry out three-dimensional modeling of the drill hole according to the hole wall information collected by the drill hole television probe; the controller can reasonably control the power motor to be turned on or turned off according to the information fed back by the four distance sensors according to the hole depth detected by the distance sensors, and can perform prompt operation according to the information fed back by the distance sensors when a drilled hole is bent or has protruding gravels.
The borehole television monitoring equipment can finish borehole observation operation under the condition of relatively poor and deep borehole, reduce the labor load, optimize the working space and simplify the working process, and meanwhile, can ensure that the borehole television probe is always in a stable centered posture for borehole, so that the borehole television probe descends at a constant speed, clear borehole wall information is obtained, the collection accuracy of the borehole wall information is improved, and the use effect of the borehole television monitoring equipment is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a block flow diagram of a down hole detection method;
FIG. 2 is a schematic diagram of a borehole television monitoring apparatus;
FIG. 3 is a view showing the connection structure of the power case and the support rod;
FIG. 4 is a partial view of the power mechanism;
FIG. 5 is a partial block diagram of a wire assembly;
FIG. 6 is a top view of the guide assembly;
fig. 7 is a connection structure diagram of the distance sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived from the embodiments of the present invention by a person skilled in the art without any creative effort, should be included in the protection scope of the present invention.
As shown in fig. 1 to 7, the present embodiment discloses a downhole detection method of a borehole television control system, where the borehole television control system includes a controller, a communication failure counter, a depth meter, a distance sensor a 1101, a distance sensor B1102, a distance sensor C1103, a distance sensor D, a display screen 13, a power motor 4, and a borehole television probe 11; the system comprises a communication fault counter, a depth meter, a distance sensor A1101, a distance sensor B1102, a distance sensor C1103, a distance sensor D, a display screen 13, a power motor 4 and a borehole television probe 11 which are all connected with a controller through a circuit, wherein the power motor 4 is in transmission connection with an iron rod 10 for drilling and controls the iron rod 10 to descend, the borehole television probe 11 is connected with the bottom end of the iron rod 10, the distance sensor A1101 is arranged at the bottom end of the borehole television probe 11, the distance sensor B1102, the distance sensor C1103 and the distance sensor D are arranged on the side wall of the borehole television probe 11 in a height-equal mode, and the distance sensor B1102, the distance sensor C1103 and the distance sensor D are arranged at equal intervals along the circumferential direction of the borehole television probe 11; the lower hole detection method of the drilling television control system comprises the following steps:
the first step is as follows: starting;
the second step is that: the controller detects whether the signal lines of the probe and the motor are normally connected or not in real time.
The third step: popping up a signal line reconnection prompt on a display screen, and executing the next step when the signal lines are all normally connected;
the fourth step: when the borehole television probe starts to detect and the borehole television probe reaches the orifice, the communication is performedFault counter CNT1The depth gauge L is equal to 0;
the fifth step: the operator can select manual operation or intelligent control according to the field condition, when the operator selects the manual operation, the sixth step is executed, otherwise, the seventh step is executed;
and a sixth step: when manual operation is selected, the controller executes the manual operation to be a first level, the motor is manually controlled to descend, and hole wall information is collected;
the seventh step: judging whether the hole wall observation action of the drilling television starts to be executed or not, wherein the judging method comprises the following steps: during time period T1; the first condition is as follows: the value of the distance sensor (any one of them can) is continuously changed in a descending way; and a second condition: the sample value of the rear 10s of the distance sensor is corresponding to the sample value of the front 10s subtracted, and 80% of the difference is larger than 200 mm. If any one of the conditions of the first and the second is met, executing the tenth step; if not, executing the eighth step;
eighth step: waiting for the detection work to start executing; waiting for a time period T1 to trigger a communication failure counter CNT1Adding 1 to the value, and making the communication failure counter CNT once every time delay1CNT with previous value1Adding 1 to the value;
the ninth step: judging whether a communication fault exists or not, so that a detection signal sent by the controller cannot be executed; counter CNT if communication failure1>n, executing the seventeenth step, otherwise executing the sixth step; n is the time delay for judging whether the communication fault exists or not, and the waiting time for judging the communication fault is controlled, wherein n =3 can be set, and the waiting time for judging the communication fault is obtained by multiplying n by T2;
the tenth step: the power motor executes a command to start working, the depth meter records the working time of the power motor as TX, and the TX is recorded in each execution1、TX2、TX3And so on;
the eleventh step: carrying out probe obstacle avoidance judgment, if the distance sensor A is larger than 5cm, and the distance sensor B, the distance sensor C and the distance sensor D are larger than 5cm, determining that an obstacle appears in the drilled hole and the probe is possibly damaged, if so, executing the twelfth step, otherwise, executing the fifteenth step;
the twelfth step: obstacle prompt is displayed on a display screen, and the time period of waiting for T3 is delayed, so that the drilling television probe is prevented from being damaged due to the fact that the drilling television probe touches an obstacle;
the thirteenth step: judging whether the position of the borehole television probe is manually fine-tuned when the borehole television probe meets an obstacle; judging whether continuous increasing or decreasing changes occur back and forth in the numerical values of the distance sensors (any one of the distance sensors can be) in a time period T4, if the continuous increasing or decreasing changes occur, executing a tenth step, and if the continuous increasing or decreasing changes do not occur, executing a fourteenth step;
the continuous increasing or decreasing change means that p continuous sampling points of the distance sensor on the drilling television probe form an increasing or decreasing relation in the sampling values in the drilling in a t4 time period; setting p = 5;
the fourteenth step is that: when the drilling television probe encounters an obstacle, the controller needs to execute an obstacle avoidance command, the power motor executes a rising command and rises by 20cm, and the depth meter records the rising time TS of the motor;
the fifteenth step: judging whether the borehole television probe reaches the bottom of the hole, if the distance sensor A is less than 5cm and two of the distance sensor B, the distance sensor C and the distance sensor D are more than 5cm, judging that the borehole television probe reaches the bottom of the borehole, and otherwise, returning to the tenth step;
sixteenth, step: when the drilling television probe reaches the bottom of a drill hole, displaying a drilling detection execution completion prompt on a display screen;
seventeenth step: the display screen displays that the borehole television detection fails and the borehole detection is not finished finally;
and eighteenth step: and (6) ending.
A controller in the borehole television control system can obtain a motor signal and a borehole television probe signal for borehole detection, wherein the motor signal and the borehole television probe signal comprise a motor descending signal, a motor ascending signal, a motor rotating speed signal, a motor working time signal, a distance sensor A, B, C, D signal and a camera signal;
in the above steps, L is the depth of the borehole tv probe in the borehole, and L =0 is set at the zero position of the borehole depth gauge. The T1 time period is set to 30 s; the T2 time period is set to 20 s; the T3 time period is set to 30 s; the T4 time period is set to 30 s; TS is the rising time of the power motor, and the initial value is set to be 0; TX is the time for the power motor to execute descending, and the initial value is set to be TX = 0;
the principle of the above operation method is as follows:
because the lowering of the borehole television probe can be controlled by the controller, and can also be controlled on site by an operator above a borehole through the power motor, the judgment of the lowering start of the borehole television probe can be considered from two aspects: if a controller in the borehole television control system sends a signal for lowering the borehole television probe, immediately starting lowering judgment of the borehole television probe; if the ground worker controls the drill television probe to be lowered in the field through the power motor, the controller starts to execute the lowering judgment of the drill television probe after receiving signals of zero returning of the depth record and lowering of the probe, which are transmitted by a sensor on the drill television probe.
When the controller is used for controlling, in order to ensure that the drill television probe signal is transferred, the iron pole can execute the transfer action, and the measurement value of the distance sensor needs to be added into the judgment for observation. Because the numerical value of the distance sensor has certain misdetection, in order to eliminate the influence, after the downward-releasing signal is issued, if the numerical value of the distance sensor continuously decreases and changes gradually in a period of time, the downward-releasing action of the borehole television probe is considered to be executed.
Considering the influence of ground workers, after the lowering judgment of the borehole television probe is started, whether signals such as descending and ascending transmitted by a power motor exist or not is detected, if any signal is received, the situation that the workers operate and drill holes to observe at the moment can be judged, and the observation at the moment can be debugging or manual operation.
When the drilling television probe enters a complex geological environment, ground workers can also finely adjust the position of the probe in a drilling hole, and the interference of some obstacles on the drilling television probe can be avoided. Therefore, at the time of the judgment of the completion of the observation of the drill hole, the interference of the change of the distance sensor and the interference of manual adjustment need to be filtered, whether the numerical value of the distance sensor is continuously increased or decreased can be judged within a period of time, if the numerical value of the distance sensor is continuously increased or decreased, manual fine adjustment exists, and a period of time is delayed to wait for the completion of the manual fine adjustment; if not, the manual fine adjustment is finished, and the drilling television probe is continuously lowered to the bottom of the hole.
The invention discloses a drilling television monitoring device which comprises a power box body 1, wherein one side of the power box body 1 is fixedly connected with a display screen 13, and the display screen 13 is connected with a controller through a circuit and is connected with a communication fault counter through the controller; the upper end wall and the lower end wall of power box 1 are provided with corresponding hole 101 of dodging, it has iron set 10 and iron set 10 to dodge in the hole 101 for two and dodge hole 101 longitudinal sliding to dodge, be provided with power unit in the power box 1 and control iron set 10 longitudinal motion through power unit, 1 bottom edge of power box is equidistant to be provided with three bracing piece 5, three bracing piece 5 is the triangular taper and arranges, is provided with the wire subassembly on one of them bracing piece 5.
The power mechanism comprises a first rotating wheel 2 and a second rotating wheel 3, the first rotating wheel 2 and the second rotating wheel 3 are both in pin connection with the inner side wall of the power box body 1, the axial directions of the first rotating wheel 2 and the second rotating wheel 3 are parallel, wheel grooves of the first rotating wheel 2 and wheel grooves of the second rotating wheel 3 are respectively positioned on two radial sides of the iron rod 10, and a clamping state is kept between the wheel grooves of the first rotating wheel 2 and the second rotating wheel 3 and the outer side wall of the iron rod 10; the power box body 1 is fixedly connected with a power motor 4, the power motor 4 is in transmission connection with the first rotating wheel 2 or the second rotating wheel 3, and certainly, two power motors can be arranged to respectively drive the first rotating wheel and the second rotating wheel to rotate;
the wire assembly comprises a first guide wheel 6 and a second guide wheel 7, the first guide wheel 6 and the second guide wheel 7 are both in pin shaft connection with the support rod 5, the axial directions of the first guide wheel 6 and the second guide wheel 7 are parallel, the second guide wheel 7 is positioned below the first guide wheel 6, and one end of the signal wire 8 sequentially passes through a wheel groove at the left end of the second guide wheel 7 and a wheel groove at the right end of the first guide wheel 6 and then is connected with a drilling television probe 11 fixedly connected to the bottom end of the iron rod 10; the other end of the signal line 8 is connected to the controller.
The controller can automatically generate a hole wall profile and a three-dimensional drill hole model on the display screen according to the hole wall information acquired by the drill television probe.
The central point of first leading wheel, second leading wheel puts fixedly connected with fixed pin axle, and fixed pin axle passes the through hole that sets up on the bracing piece, and when the end of signal line descends along with iron set, drilling TV probe, the signal line drives first leading wheel, second leading wheel and fixed pin axle rotation, has prevented that the signal line from appearing inferior surplus scheduling problem that knots.
The borehole television monitoring equipment further comprises a guide assembly, and the guide assembly is arranged among the three support rods 5; the guide assembly comprises a guide ring 12 and three telescopic rods 9, the three telescopic rods 9 are arranged on the outer side of the circumference of the guide ring 12 at equal intervals, the three telescopic rods 9 are arranged at equal heights, one ends of the three telescopic rods 9 are respectively connected with the three support rods 5 through pin shafts, and the other ends of the three telescopic rods 9 are respectively connected with the outer side wall of the guide ring 12 through pin shafts; the bottom end of the iron rod 10 penetrates through the guide ring 12, the iron rod 10 can longitudinally slide relative to the guide ring 12, and the bottom end of the iron rod 10 is detachably connected with the drilling television probe 11.
The borehole television probe 11 is provided with a distance sensor A1101, a distance sensor B1102, a distance sensor C1103 and a distance sensor D, the power motor 4 is connected with a depth meter, and the borehole television probe 11, the power motor 4 and the depth meter are all connected with a controller through lines. The depth meter is arranged at a roller connected with the power motor, the rotation of the roller drives the iron rod to ascend and descend, the descending and ascending speeds of the probe are reasonably controlled, and the depth meter records the descending depth of the drilling television probe through recording the rotation of the roller driven by the motor.
A blocking piece is arranged below one end of each of the three telescopic rods connected with the support rod, so that the telescopic rods can only rotate upwards by 90 degrees relative to the support rod (namely when the end of each of the telescopic rods connected with the guide ring is at the lowest height, the axis of each telescopic rod is in a horizontal state), when the storage operation is carried out, the guide rings move upwards, the three telescopic rods rotate upwards simultaneously, the folding storage operation of the three support rods is completed until the axis direction of each telescopic rod is consistent with the axis direction of the support rod, and when the three support rods need to be unfolded, the guide rings are lowered; because the equal altitude setting of the one end that three telescopic link and bracing piece are connected, three telescopic link length is also the same, so, the guide ring keeps in the central point of three bracing piece always to put, and the axis of guide ring coincides with the axis of two holes of dodging on the power box.
The working process of the equipment is as follows:
and 3, connecting the other end of the signal wire to the drilling television probe after bypassing the second guide wheel and the second guide wheel on the tripod supporting rod.
Step 4, starting detection work, turning on a power motor, slowly descending the iron rod under the driving of the first rotating wheel and the second rotating wheel,
and 5, completing image collection operation after the drilling television probe reaches the bottom end of the drill hole.
The invention better solves the following problems in the current borehole television observation: 1. the borehole television probe cannot keep a uniform and centered posture to acquire a borehole wall image; 2. when the drill hole is deep, the iron rod can not be held by manpower for a long time to lower the probe; 3. the depth gauge cannot be fixed, and a signal wire cannot be conveniently fixed on an iron rod when the probe is lowered; 4. when the drilling condition is poor, the problem that the drilling television probe is blocked due to the fact that silt and broken stone are attached to the wall of the drill hole is solved; 5. when a drilling television probe encounters an obstacle in drilling, the problem that the probe is possibly damaged due to the fact that the probe cannot be avoided; 6. determining the problem of inferior knotting of the signal wire when the hole is deep according to the length of the signal wire; 7. the problem that the lowering of the operation probe and the image in the observation hole can not be carried out simultaneously;
when the drilling television probe is used, the iron rod can sequentially penetrate through the avoidance hole at the top end of the power box body, the power mechanism and the avoidance hole at the bottom end of the power box body and then is connected with the drilling television probe, the iron rod and the drilling television probe are driven by the power mechanism to move up and down at a constant speed, and the movement detection operation of the drilling television probe in a drill hole is realized; the drilling television detection device has stable movement and good imaging effect, and meanwhile, the iron rod does not need to be operated by manpower in the whole operation process, so that the labor amount of operators is reduced, the whole process is time-saving and labor-saving, and convenience is brought to the drilling television detection operation.
The invention can determine the descending depth of the drilling television probe according to the rotating speed and the working time of the power motor, can avoid the difficulty in fixing the depth gauge and the problem of signal line redundancy caused by using a signal line to record the depth, and simultaneously, through the design of the guide assembly, the iron rod can be always positioned in the middle of the drilling in the observation process, thereby improving the detection precision of the drilling television probe.
The invention can realize the image collection operation process of the hole wall through the display screen, and can carry out three-dimensional modeling of the drill hole according to the hole wall information collected by the drill hole television probe; the controller can reasonably control the power motor to be turned on or turned off according to the information fed back by the four distance sensors according to the hole depth detected by the distance sensors, and can perform prompt operation according to the information fed back by the distance sensors when a drilled hole is bent or has protruding gravels.
The borehole television monitoring equipment can finish borehole observation operation under the condition of relatively poor and deep borehole, reduce the labor load, optimize the working space and simplify the working process, and meanwhile, can ensure that the borehole television probe is always in a stable centered posture for borehole, so that the borehole television probe descends at a constant speed, clear borehole wall information is obtained, the collection accuracy of the borehole wall information is improved, and the use effect of the borehole television monitoring equipment is effectively improved.
Claims (8)
1. A method for detecting a lower hole of a drilling television control system is characterized by comprising the following steps: the drilling television control system comprises a controller, a communication fault counter, a depth instrument, a distance sensor A, a distance sensor B, a distance sensor C, a distance sensor D, a display screen, a power motor and a drilling television probe; the device comprises a communication fault counter, a depth meter, a distance sensor A, a distance sensor B, a distance sensor C, a distance sensor D, a display screen, a power motor and a drilling television probe, wherein the power motor is in transmission connection with an iron rod for drilling and controls the iron rod to descend; the lower hole detection method of the drilling television control system comprises the following steps:
s1, starting;
s2, the controller detects each signal wire, and when the signal wire is not normally connected, the step S3 is executed; when the signal line connection is normal, step S4 is executed;
s3, popping up a signal line reconnection prompt on the display screen, and executing the next step after the signal line is normally connected;
s4, when the borehole TV probe arrives at the hole, the CNT counter is controlled to be in communication failure1Equal to 0, depth gauge L equal to 0;
s5, selecting manual control or drilling television control system control by an operator according to the field condition, and executing the step S6 when the operator selects the manual control; when the operator selects the control of the drilling television control system, executing the step S7;
s6, when manual control is selected, the power motor is manually controlled to execute descending operation, and the hole wall information is collected through the drilling television probe;
s7, judging whether the hole punching action is started or not; when the judgment is made, if any one of the first condition and the second condition is satisfied within the time period of T1, executing step S10; if none of the conditions is met, executing step S8;
the first condition is as follows: the value of the distance sensor A is continuously decreased and changed; and a second condition: correspondingly subtracting the sampling value of the front 10s from the sampling value of the rear 10s of the distance sensor A, wherein 80% of the obtained difference value is larger than 200 mm;
s8, waiting for the hole punching action to start execution; after waiting for T2 time period, the communication failure counter CNT is controlled1Adding 1 to the value, and making the communication failure counter CNT once every time delay1CNT with previous value1Adding 1 to the value;
s9, judging whether a communication fault exists; counter CNT if communication failure1>n, executing step S17, otherwise executing step S6;
s10, the power motor starts to work, the drilling television probe descends in the hole along with the iron rod, and the depth gauge records the working time TX of the power motor;
s11, in the descending process of the borehole television probe, if the numerical value of the distance sensor A is larger than 5cm, and the numerical value of the distance sensor B, the numerical value of the distance sensor C and the numerical value of the distance sensor D are larger than 5cm, executing a step S12; otherwise, go to step S15;
s12, popping up an obstacle prompt on a display screen, enabling a power motor to pause for a time period of T3, and waiting for manual fine adjustment of the position of the drilling television probe to avoid an obstacle;
s13, judging whether the position of the drilling television probe is finely adjusted manually or not; judging whether the value of the distance sensor A is continuously increased and decreased within a time period T4, if so, executing a step S10, and if not, executing a step S14;
s14, the controller controls the power motor to execute a lifting command, the iron rod is lifted by 20cm, and the depth gauge records the lifting time TS of the power motor;
s15, in the descending process of the borehole television probe, when the numerical value of the distance sensor A is less than 5cm, and two of the numerical value of the distance sensor B, the numerical value of the distance sensor C and the numerical value of the distance sensor D are more than 5cm, judging that the borehole television probe reaches the bottom of a borehole, otherwise, returning to the step S10;
s16, when the drilling television probe reaches the bottom of the drill hole, popping up a lower hole detection completion prompt on a display screen;
s17, displaying that the lower hole detection is not completed on the display screen;
and S18, ending.
2. The downhole detection method of a borehole television control system as recited in claim 1 further comprising: the T1 is 30 s; t2 is 20 s; t3 is 30 s; t4 is 30 s; n is 3.
3. The downhole detection method for a borehole television control system as recited in claim 2 further comprising: in step S13, the continuously increasing and decreasing changes are: in the time period t4, p continuous sampling points form an increasing or decreasing relation with the sampling value of the distance sensor A in the borehole; p is 5.
4. A borehole television monitoring apparatus comprising the borehole television control system of claim 1, wherein: the drilling television monitoring equipment comprises a power box body, wherein a display screen is fixedly connected to one side of the power box body, and a controller is connected to the display screen through a circuit and is connected with a communication fault counter through the controller; the power box body is characterized in that corresponding avoiding holes are formed in the end walls of the upper end and the lower end of the power box body, iron rods are inserted in the two avoiding holes and can longitudinally slide relative to the two avoiding holes, a power mechanism is arranged in the power box body and controls the iron rods to longitudinally move through the power mechanism, three support rods are arranged on the edge of the bottom end of the power box body at equal intervals, and a wire assembly is arranged on one support rod.
5. The borehole television monitoring apparatus of claim 4, wherein: the power mechanism comprises a first rotating wheel and a second rotating wheel, the first rotating wheel and the second rotating wheel are connected with the inner side wall of the power box body through pin shafts, the axial directions of the first rotating wheel and the second rotating wheel are parallel, wheel grooves of the first rotating wheel and wheel grooves of the second rotating wheel are respectively positioned on two radial sides of the iron rod, and a clamping state is kept between the wheel grooves of the first rotating wheel and the second rotating wheel and the outer side wall of the iron rod; and the power box body is fixedly connected with a power motor, and the power motor is in transmission connection with the first rotating wheel or the second rotating wheel.
6. The borehole television monitoring apparatus of claim 5, wherein: the wire assembly comprises a first guide wheel and a second guide wheel, the first guide wheel and the second guide wheel are connected with a support rod pin shaft, the axis directions of the first guide wheel and the second guide wheel are parallel, the second guide wheel is positioned below the first guide wheel, one end of a signal wire sequentially penetrates through a wheel groove at the left end of the second guide wheel and a wheel groove at the right end of the first guide wheel and then is connected with a drilling television probe fixedly connected to the bottom end of the iron rod, and the other end of the signal wire is connected with the controller.
7. The borehole television monitoring apparatus of claim 6, wherein: the borehole television monitoring equipment further comprises a guide assembly, and the guide assembly is arranged among the three support rods; the guide assembly comprises a guide ring and three telescopic rods, the three telescopic rods are arranged on the outer side of the circumference of the guide ring at equal intervals and are arranged at equal heights, one ends of the three telescopic rods are respectively connected with three support rod pin shafts, and the other ends of the three telescopic rods are respectively connected with the outer side wall of the guide ring through pin shafts; the bottom end of the iron rod penetrates through the guide ring, and the iron rod can longitudinally slide relative to the guide ring.
8. The borehole television monitoring apparatus of claim 7, wherein: the drilling television probe is provided with a distance sensor A, a distance sensor B, a distance sensor C and a distance sensor D, the power motor is connected with a depth meter, and the drilling television probe, the power motor and the depth meter are all connected with a controller through lines.
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