CN214408795U - Underground deep rock mass quality detection device based on seismic wave technology - Google Patents
Underground deep rock mass quality detection device based on seismic wave technology Download PDFInfo
- Publication number
- CN214408795U CN214408795U CN202023178327.8U CN202023178327U CN214408795U CN 214408795 U CN214408795 U CN 214408795U CN 202023178327 U CN202023178327 U CN 202023178327U CN 214408795 U CN214408795 U CN 214408795U
- Authority
- CN
- China
- Prior art keywords
- rock mass
- receiving
- iron ring
- casing
- mass quality
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Geophysics And Detection Of Objects (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model provides an underground deep rock mass quality detection device based on seismic wave technique, stretch into the rock mass through the sleeve pipe inside for emission mechanism and receiving mechanism provide working space, send emission mechanism and receiving mechanism to the inside of rock mass through the sleeve pipe, emission mechanism strikes this rock mass that awaits measuring, send seismic wave, receiving mechanism receives the seismic wave that transmits through this rock mass, through the inside seismic wave propagation condition of this rock mass that awaits measuring of analysis, obtain the rock mass quality in this region, thereby can provide more detailed ground data for engineering construction.
Description
Technical Field
The invention relates to the technical field of monitoring, in particular to an underground deep rock mass quality detection device based on a seismic wave technology.
Background
The quality of underground rock mass plays a crucial role in engineering construction, the underground geological data of a construction area needs to be collected in the early stage of construction, the method for collecting the data tightly utilizes a drilling exploration mode to obtain the underground geological data of the area, and as is well known, the geological body is used as a heterogeneous body and has anisotropy, so that only the bottom layer information of each drilling point position in the area can be obtained by adopting a drilling coring mode, and the regional geological condition is difficult to reflect.
Therefore, it is desirable to provide a monitoring device capable of more easily reflecting the quality of rock mass in the entire underground region, and providing more detailed foundation data for engineering construction.
Disclosure of Invention
The invention mainly solves the technical problem of providing a detection device, which can detect the quality of an underground deep rock mass, can reflect geological conditions regionally and can be applied to engineering construction more conveniently.
According to a first aspect, an embodiment provides a seismic wave technology-based downhole deep rock mass quality detection device, including:
the two sleeves are used for penetrating into the rock mass, respectively accommodating the transmitting mechanism and the receiving mechanism and providing working spaces for the transmitting mechanism and the receiving mechanism;
the device comprises a transmitting mechanism and a receiving mechanism, wherein the transmitting mechanism is used for knocking a rock body to transmit seismic waves, and the receiving mechanism is used for receiving the seismic waves transmitted through the rock body;
the transmitting mechanism and the receiving mechanism are connected with a master control computer through cables, and the master control computer controls the transmitting mechanism and the receiving mechanism to work and collect seismic wave data.
In one embodiment, the method further comprises: the support mechanism is arranged between the two sleeves, pulleys are arranged at two ends of the support mechanism and used for supporting the cable, and scale marks are arranged on the cable.
In one embodiment, the launching mechanism comprises a first electromagnetic chuck, a first spring, a first iron ring, a first hammering rod and a hammering head, wherein the first electromagnetic chuck and the first iron ring are arranged oppositely, the first hammering rod comprises a head end and a tail end, the head end of the first hammering rod is fixed to the first iron ring, the tail end of the first hammering head is fixed to the first iron ring, and the first spring is located between the first electromagnetic chuck and the first iron ring.
In one embodiment, the launch protection shell further comprises a launch protection shell, wherein the launch protection shell comprises a first front cover, a first rear cover opposite to the first front cover, and a first shell wall surrounding the first front cover, the first rear cover and the first shell wall enclose a cavity for accommodating a launch mechanism, the electromagnetic chuck is fixed on the first rear cover, the hammer rod extends out of the first front cover, and the hammer head is exposed outside the launch protection shell; and a first guide wheel is further arranged on the periphery of the launching protective shell.
In one embodiment, the wall of the casing is provided with a plurality of arched guide grooves for accommodating the first guide wheels, and the wall is further provided with a hollow surface.
In one embodiment, the receiving mechanism comprises: second electromagnet, second spring, second iron ring, second hammering pole, receiving probe, the second electromagnet with the second iron ring sets up relatively, the second hammering pole includes head end and tail end, its head end with the second iron ring is fixed, and its tail end is fixed receiving probe, the second spring is located between second electromagnet and the second iron ring.
In one embodiment, the receiving protective shell further comprises a receiving protective shell, the receiving protective shell comprises a second shell wall surrounding along the axial direction, and a second front cover and a second rear cover which are respectively arranged at two ends of the second shell wall, the second front cover, the second rear cover and the second shell wall enclose a cavity for accommodating the launching mechanism, the electromagnetic chuck is fixed on the second rear cover, the hammering rod extends out of the second front cover, and the hammering head is exposed outside the receiving protective shell; and a second guide wheel is further arranged on the periphery of the receiving protective shell.
In one embodiment, the wall of the casing has a plurality of arched guide grooves for accommodating the second guide wheels, and the wall has a hollow surface.
In one embodiment, the lifting device further comprises a motor, the motor is electrically connected with the master control computer, and the motor is used for controlling the lifting height of the transmitting mechanism and the lifting height of the receiving mechanism.
In one embodiment, the device further comprises a workbench, and the master control computer and the motor are arranged on the workbench.
According to the underground deep rock mass quality detection device based on the seismic wave technology of the embodiment, the sleeve pipe stretches into the rock mass, the transmitting mechanism and the receiving mechanism are sent to the inside of the rock mass through the sleeve pipe, the transmitting mechanism knocks the rock mass to be detected and sends out seismic waves, the receiving mechanism receives the seismic waves transmitted through the rock mass, and the rock mass quality in the region is obtained by analyzing the propagation condition of the seismic waves in the rock mass to be detected, so that more detailed foundation data can be provided for engineering construction.
Drawings
Fig. 1 is a schematic view of an overall structure of a detection device according to an embodiment of the present invention;
fig. 2 is a schematic front view of a detection device according to an embodiment of the present invention;
fig. 3 is a schematic top view of a detection device according to an embodiment of the present invention;
fig. 4 is a schematic view of an overall structure of a support mechanism in the detection apparatus according to an embodiment of the present invention;
fig. 5 is a schematic view of an overall structure of a sleeve in the detection apparatus according to an embodiment of the present invention;
fig. 6 is a schematic view of a transmitting and receiving mechanism in the detecting device according to an embodiment of the present invention;
fig. 7 is a schematic view of an internal structure of the transmitting and receiving mechanism in the detecting device according to an embodiment of the present invention when the transmitting and receiving mechanism is in an energized state;
fig. 8 is a schematic view of the internal structure of the transmitting and receiving mechanism in the detecting device according to an embodiment of the present invention in a power-off state;
fig. 9 is a schematic diagram of a result obtained by the detection apparatus according to an embodiment of the present invention.
In the figure: the device comprises a sleeve 2, a transmitting mechanism 3, a receiving mechanism 4, a support mechanism 5, a motor 6, a master control computer 7, a workbench 8, pulleys 9, a support frame 10, a vertical rod 11, a guide wheel 12, a protective shell 13, an electromagnetic chuck 14, a spring 15, an iron ring 16, a guide groove 17, a hammering rod 18, a hammering head 19, a cable 20, a rear cover 21, a guide rod 22, a stress ring 23, a receiving probe 24 and a hollowed-out surface 25.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).
Because the geologic body is an inhomogeneous body, the regional geologic condition cannot be accurately reflected by adopting the current drilling and coring mode.
Through analysis, when the quality of the surface rock mass and the concrete member is detected, the geological condition can be detected regionally in a seismic wave detection mode, namely, the sound wave is generated in a knocking mode, so that the sound wave is transmitted in the rock mass on the surface, and the quality of the surface is judged through the transmission speed. In the embodiment of the invention, the underground deep rock mass quality detection device based on the seismic wave technology is provided, the sleeve pipe extends into the rock mass, the transmitting mechanism and the receiving mechanism are sent into the rock mass through the sleeve pipe, the transmitting mechanism knocks the rock mass to be detected to send out seismic waves, the receiving mechanism receives the seismic waves transmitted through the rock mass, and the rock mass quality in the region is obtained by analyzing the propagation condition of the seismic waves in the rock mass to be detected, so that more detailed foundation data can be provided for engineering construction.
Referring to fig. 1 to 8, in the present embodiment, there is provided a seismic wave technology-based downhole deep rock mass quality detection apparatus, including: the device comprises a sleeve 2, a launching mechanism 3, a structural mechanism 4 and a main control motor 6.
In this embodiment, there are two said casings 2, said casings 2 can penetrate into the rock mass.
The two sleeves 2 are used for accommodating the launching mechanism 3 and the structural mechanism 4 respectively and providing working spaces for the launching mechanism 3 and the structural mechanism 4, and a plurality of arched guide grooves 17 are formed in the wall of each sleeve 2.
In this embodiment, the number of the arched guide grooves 17 is three, the wall of the casing 2 is further provided with a hollow surface 25, and the three arched guide grooves 17 and the hollow surface 25 are arranged along the axial direction of the casing 2 and are uniformly distributed around the casing 2.
In some embodiments, the rock mass to be measured may be drilled by using a drilling technique, so that the casing 2 can extend into the interior of the rock mass through the two holes 1, so that the launching mechanism 3 and the structural mechanism 4 are placed in the interior of the rock mass along the casing 2, and the quality of the deep rock mass can be detected and evaluated.
The device comprises an emitting mechanism 3 and a structural mechanism 4, wherein the emitting mechanism 3 is used for knocking a rock body to emit seismic waves, and the structural mechanism 4 is used for receiving the seismic waves transmitted through the rock body. The launching mechanism 3 and the structural mechanism 4 are connected with a master control computer 7 through cables, the master control computer 7 controls the launching mechanism 3 and the structural mechanism 4 to work, seismic wave data are collected, and the quality of rock mass is evaluated through the collected seismic wave data.
The launching mechanism 3 is similar to the structure of the structure mechanism 4, and has certain differences in function, wherein the structure comprises an electromagnetic chuck 14, a spring 15, an iron ring 16 and a hammering rod 18, and the movement of the hammering rod 18 is controlled by the power-on and power-off of the electromagnetic chuck 14; the main function of the launching mechanism 3 is to finish one-time rock wall hammering under the instruction of the master control computer 7, namely to launch one-time seismic waves; the main function of the structural mechanism 4 is that before the launching mechanism 3 hammers the rock wall, the receiving probe 24 is tightly attached to the rock wall, so as to receive the seismic waves generated by the hammering head 19 in the launching mechanism 3 hammering the wall of the hole.
In this embodiment, the launching mechanism 3 includes a first electromagnetic chuck 14, a first spring 15, a first iron ring 16, a first hammering rod 18, and a hammering head 19, the first electromagnetic chuck 14 and the first iron ring 16 are disposed oppositely, the first hammering rod 18 includes a head end and a tail end, the head end is fixed to the first iron ring 16, the tail end is fixed to the first hammering head 19, and the first spring 15 is located between the first electromagnetic chuck 14 and the first iron ring 16.
The electromagnetic chuck is characterized by further comprising a launching protective shell 13, wherein the launching protective shell 13 comprises a first front cover, a first rear cover 21 opposite to the first front cover, and a first shell wall surrounding the first front cover, the first rear cover 21 and the first shell wall enclose a cavity for accommodating the launching mechanism 3, the electromagnetic chuck 14 is fixed on the first rear cover 21, the hammering rod 18 extends out of the first front cover, and the hammering head 19 is exposed outside the launching protective shell 13.
The periphery of the launching protection shell 13 is further provided with a first guide wheel 12, in this embodiment, three first guide wheels 12 are provided, and the first guide wheels 12 are matched with three arched guide grooves 17 on the casing 2, so that the launching mechanism 3 can be placed into a rock body more stably and smoothly to perform measurement.
In the launching mechanism 3, when the first electromagnetic chuck 14 is powered on, a magnetic force is generated to attract the first iron ring 16, the first iron ring 16 slides along the guide rod 22 to drive the first hammering rod 18 to contract inside the launching protective shell 13, and at this time, the first spring 15 is in a compressed state; when the power is off, the compressed first spring 15 releases the elastic potential energy and pushes the first hammering rod 18 and the first hammering head 19 to hammer the rock wall, and seismic waves are excited.
In some embodiments, a first force ring 23 is disposed on a side of the first hammer rod 18 facing the first spring 15, and when the power is off, the compressed first spring 15 releases elastic potential energy and pushes the first force ring 23, and thus the first hammer rod 18 and the first hammer head 19 to hammer the rock wall, so as to excite the seismic wave.
It will be appreciated that when the first electromagnetic chuck 14 is energized, the first hammer lever 18 is in a retracted state; when the first electromagnetic suction cup 14 is powered off, the first hammer rod 18 is in a state of releasing impact and generating seismic waves.
In this embodiment, the structural mechanism 4 includes: second electromagnet 14, second spring 15, second iron ring 16, second hammering pole 18, receiving probe 24, second electromagnet 14 with second iron ring 16 sets up relatively, second hammering pole 18 includes head end and tail end, its head end with second iron ring 16 is fixed, and its tail end is fixed receiving probe 24, second spring 15 is located between second electromagnet 14 and the second iron ring 16.
The electromagnetic chuck further comprises a receiving protective shell 13, the receiving protective shell 13 comprises a second shell wall surrounding along the axial direction, and a second front cover and a second rear cover 21 respectively arranged at two ends of the second shell wall, the second front cover, the second rear cover 21 and the second shell wall enclose a cavity for accommodating the launching mechanism 3, the electromagnetic chuck 14 is fixed on the second rear cover 21, the hammering rod 18 extends out of the second front cover, and the hammering head 19 is exposed outside the receiving protective shell 13.
The periphery of the receiving protective shell 13 is further provided with second guide wheels 12, in this embodiment, there are three second guide wheels 12, and the second guide wheels 12 are matched with the three arched guide grooves 17 on the casing 2, so that the structural mechanism 4 can be placed into the rock body more stably and smoothly to perform measurement work.
In the structural mechanism 4, after the second electromagnetic chuck 14 is powered on, magnetic force is generated to attract the second iron ring 16, the second iron ring 16 slides along the guide rod 22 to drive the second hammering rod 18 and the receiving probe 24, so that the second hammering rod 18 and the receiving probe 24 are contracted inside the receiving protective shell 13, at this time, the second spring 15 is in a compressed state, when the structural mechanism 4 is stabilized at a certain position, the second electromagnetic chuck 14 is powered off, the compressed second spring 15 releases elastic potential energy, and pushes the second hammering rod 18 and the receiving probe 24 to impact and cling to a rock wall, so that seismic waves transmitted when the transmitting mechanism 3 strikes the rock wall are received.
It will be appreciated that when the second electromagnetic chuck 14 is energized, the second hammer lever 18 is in a retracted state; when the second electromagnetic suction cup 14 is powered off, the second hammer rod 18 is in a state of releasing and receiving seismic waves.
In this embodiment, the method further includes: the support mechanism 5 is installed between the two sleeves 2 and plays a supporting role, the support mechanism 5 comprises a vertical rod 11 for supporting the whole body and a support frame 10 perpendicular to the vertical rod 11, the vertical rod 11 is arranged in the middle of the support frame 10, pulleys 9 are arranged at two ends of the support frame 10 and used for supporting cables, and the cables can pass through the pulleys 9.
Still include workstation 8, workstation 8 sets up beside gimbal mechanism 5, master control computer 7 sets up on workstation 8.
Still include motor 6, motor 6 with master control computer 7 electricity is connected, can set up on the workstation 8, motor 6 is used for controlling the height of putting up of emission mechanism 3 and structural mechanism 4. Motor 6 all is connected through cable 20 with emission mechanism 3 and structural mechanism 4, and pulley 9 at support frame 10 both ends is walked around respectively to cable 20 for motor 6 is more smooth control emission mechanism 3 and structural mechanism 4 put, has the scale sign on the cable 20, makes control that can be more accurate put the height, simultaneously, can ensure through the scale sign emission mechanism 3 and structural mechanism 4 are in same degree of depth position. When detecting, the motor 6 is controlled by the active computer, the main control computer 7 controls the height of the motor 6 to be lifted, and data acquisition is carried out, for example, the main control computer 7 sends an instruction to drive the motor 6 to work, the motor 6 lifts the transmitting mechanism 3 and the structural mechanism 4 from bottom to top, and when the height of H meters is lifted, the transmitting mechanism 3 and the structural mechanism 4 are controlled to finish the transmitting and receiving work of seismic waves once, and meanwhile, the main control motor 6 finishes a data acquisition task.
In some embodiments, the electrodes may be set to complete signal transmission and reception every 0.2m, and the main control computer 7 may perform the determination by recording the propagation velocity of the seismic wave between two boreholes at different depth positions.
For example, referring to fig. 9, the detection apparatus provided in this embodiment analyzes and determines the quality of the rock mass between two holes according to the wave velocity of the sound wave, where the rock mass at the depth position with a lower wave velocity value is poor, and the rock mass at the position with a higher wave velocity value is high, and the rock mass can be respectively determined as a "low-value abnormal zone" and a "complete rock mass".
Through the quality detection device of the underground deep rock mass based on the seismic wave technology in the embodiment, the quality of the underground deep rock mass can be accurately evaluated, the abnormal zone rock mass can be better avoided when engineering construction is carried out, and the complete rock mass is selected for engineering design.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (10)
1. A deep rock mass quality detection device in pit based on seismic wave technique, its characterized in that includes:
the two sleeves are used for penetrating into the rock mass, respectively accommodating the transmitting mechanism and the receiving mechanism and providing working spaces for the transmitting mechanism and the receiving mechanism;
the device comprises a transmitting mechanism and a receiving mechanism, wherein the transmitting mechanism is used for knocking a rock body to transmit seismic waves, and the receiving mechanism is used for receiving the seismic waves transmitted through the rock body;
the transmitting mechanism and the receiving mechanism are connected with a master control computer through cables, and the master control computer controls the transmitting mechanism and the receiving mechanism to work and collect seismic wave data.
2. The downhole deep rock mass quality inspection device of claim 1, further comprising: the support mechanism is arranged between the two sleeves, pulleys are arranged at two ends of the support mechanism and used for supporting the cable, and scale marks are arranged on the cable.
3. The underground deep rock mass quality detection device according to claim 1, wherein the launching mechanism comprises a first electromagnetic chuck, a first spring, a first iron ring, a first hammering rod and a hammering head, the first electromagnetic chuck and the first iron ring are arranged oppositely, the first hammering rod comprises a head end and a tail end, the head end is fixed with the first iron ring, the tail end is fixed with the first hammering head, and the first spring is located between the first electromagnetic chuck and the first iron ring.
4. The downhole deep rock mass quality inspection device of claim 3, further comprising a launch containment vessel comprising a first front cover, a first back cover opposite the first front cover, and a first axially surrounding wall, the first front cover, the first back cover, and the first wall enclosing a cavity for housing a launch mechanism, the electromagnetic chuck being secured to the first back cover, the hammer rod extending from the first front cover, and the hammer head being exposed outside of the launch containment vessel; and a first guide wheel is further arranged on the periphery of the launching protective shell.
5. The underground deep rock mass quality detection device according to claim 4, wherein the casing has a plurality of arched guide grooves on a wall thereof, the arched guide grooves being configured to receive the first guide wheels, and the wall having a hollowed surface.
6. The downhole deep rock mass quality inspection device of claim 5, wherein the receiving mechanism comprises: second electromagnet, second spring, second iron ring, second hammering pole, receiving probe, the second electromagnet with the second iron ring sets up relatively, the second hammering pole includes head end and tail end, its head end with the second iron ring is fixed, and its tail end is fixed receiving probe, the second spring is located between second electromagnet and the second iron ring.
7. The downhole deep rock mass quality inspection device of claim 6, further comprising a receiving protective casing, the receiving protective casing comprising a second casing wall surrounding in an axial direction, a second front cover and a second rear cover at opposite ends of the second casing wall, the second front cover, the second rear cover and the second casing wall enclosing a cavity for housing the launching mechanism, the electromagnetic chuck being fixed to the second rear cover, the hammer rod extending from the second front cover, and the hammer head being exposed outside the receiving protective casing; and a second guide wheel is further arranged on the periphery of the receiving protective shell.
8. The underground deep rock mass quality detection device of claim 7, wherein the casing has a plurality of arched guide grooves on the wall of the casing, the arched guide grooves are used for accommodating the second guide wheels, and the wall of the casing is further provided with a hollow surface.
9. The underground deep rock mass quality detection device of claim 1, further comprising a motor, wherein the motor is electrically connected with the master control computer, and the motor is used for controlling the lifting height of the transmitting mechanism and the receiving mechanism.
10. The underground deep rock mass quality detection device of claim 9, further comprising a workbench, wherein the master computer and the motor are arranged on the workbench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023178327.8U CN214408795U (en) | 2020-12-25 | 2020-12-25 | Underground deep rock mass quality detection device based on seismic wave technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023178327.8U CN214408795U (en) | 2020-12-25 | 2020-12-25 | Underground deep rock mass quality detection device based on seismic wave technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214408795U true CN214408795U (en) | 2021-10-15 |
Family
ID=78042538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023178327.8U Active CN214408795U (en) | 2020-12-25 | 2020-12-25 | Underground deep rock mass quality detection device based on seismic wave technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214408795U (en) |
-
2020
- 2020-12-25 CN CN202023178327.8U patent/CN214408795U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2229023C2 (en) | Method for using pauses in boring process for performing measurements of geological layer characteristics, device for performing measurings of geological layer characteristics, method for changing order of data collection | |
| JP2013545980A (en) | System and method for communicating data between an excavator and a surface device | |
| US10989828B2 (en) | Vibration while drilling acquisition and processing system | |
| CN102870015A (en) | Well collision avoidance using distributed acoustic sensing | |
| CN101517191A (en) | Method of and system for determining the free point in a drill pipe | |
| CN110749927A (en) | Optical fiber acoustic sensing orthogonal dipole acoustic logging system and measuring method thereof | |
| CN106199719B (en) | A kind of VSP during drilling measurement clock system and method | |
| US10527748B2 (en) | Nuclear magnetic resonance sensing device for downhole measurements | |
| CN116026714B (en) | Horizontal hole rock hardness measuring device | |
| CN111608645B (en) | Directional ground penetrating radar device for drilling | |
| EP0471733A1 (en) | Pile tester. | |
| US5553677A (en) | Survey process for cable core borings and device for implementing it | |
| WO2019161203A1 (en) | Acoustic impedance while drilling acquisition and processing system | |
| CN209979870U (en) | In-hole scanning detection device based on electromagnetic induction principle | |
| KR102190776B1 (en) | Elastic wave detector for bridge and, cavity exploring system including the same | |
| CN106401572B (en) | A kind of VSP during drilling measurement sensor pushing device and measuring tool | |
| CN106154333B (en) | Four component VSP measurement-while-drilling systems of one kind and method | |
| CN214408795U (en) | Underground deep rock mass quality detection device based on seismic wave technology | |
| CN101460868A (en) | Method and apparatus for determining formation resistivity ahead of the bit and azimuthal at the bit | |
| CN110529103B (en) | External-sleeve armored optical cable orientation system with built-in controllable sound source and data acquisition method | |
| WO2013149308A1 (en) | Short range borehole radar | |
| CN105863623B (en) | A kind of data timesharing carrying system and method for VSP during drilling measurement | |
| CN106200455A (en) | A kind of signal playback device and method measured for VSP during drilling | |
| CN106094025B (en) | A kind of signal acquisition and storage device for VSP during drilling measurement | |
| CN210564512U (en) | External armored optical cable orientation system with built-in controllable sound source for sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |