CN114563815A - Movable seismic exploration device and detachable seismic exploration operation line - Google Patents

Abstract

The invention provides a mobile seismic exploration device and an exploration operation line, wherein the exploration device comprises: a frame that rotates about an axis; at least one detector is arranged in the frame, and the frame is rotated to enable one of the detectors to be located at a detection position, wherein the detection position faces a road surface; and a directional conductive slip ring is arranged on the shaft and is electrically connected with all the detectors in an on-off manner, and the frame is rotated to enable the directional conductive slip ring to conduct the detectors on the detection position with the host. The exploration operation line is formed by connecting a plurality of detection units. The invention can move integrally, has simple and convenient operation and simple assembly, does not need to frequently disassemble the detector when carrying out seismic exploration on different types of road surfaces, and has high working efficiency.

Description

Movable seismic exploration device and detachable seismic exploration operation line

Technical Field

The invention belongs to the technical field of environmental exploration, and particularly relates to a movable seismic exploration device and a detachable seismic exploration operation line.

Background

In the seismic exploration process, the detector obtains seismic wave information through coupling with a soft or hard road surface so as to explore a deep target body, and the method is an indirect exploration method. The traditional seismic exploration equipment appearing in the market at present mainly comprises cables, detectors and a host, the integration degree of the equipment is low, the assembly procedure is complex, instruments need to be disassembled and assembled once when the traditional seismic exploration equipment finishes the detection of one exploration point in work, generally, in the long-distance detection, a measuring line can have hundreds of exploration points and dozens of detectors, the labor intensity of workers can be greatly increased due to repeated disassembly and assembly, the working efficiency is reduced, the traditional seismic exploration equipment is damaged, and the detection precision is influenced.

Disclosure of Invention

The invention aims to provide a mobile seismic exploration device, which aims to solve the problems that when seismic exploration is carried out on different types of road surfaces, detectors need to be frequently disassembled, the assembly procedure is complex, and the equipment loss is large.

The invention provides the following technical scheme:

a mobile seismic survey apparatus comprising:

a frame that rotates about an axis;

at least one detector is arranged in the frame, and the frame is rotated to enable one of the detectors to be located at a detection position, wherein the detection position faces a road surface;

and a directional conductive slip ring is arranged on the shaft, and the frame is rotated to enable the directional conductive slip ring to conduct the detector on the detection position with the host.

Specifically, the directional conductive slip ring comprises a conductive elastic sheet, an insulating elastic sheet and a directional elastic sheet;

the insulating elastic sheet and the directional elastic sheet are fixed on the shaft at intervals in the same circumferential direction, and the directional elastic sheet is made of a conductive material;

the conductive elastic sheets are distributed in the same circumference of the outer side of the insulating elastic sheet, the conductive elastic sheets are insulated, and each conductive elastic sheet is electrically connected with one detector;

the directional elastic sheet is positioned on the detection position, and the directional elastic sheet, the conductive elastic sheet on the detection position and the host are electrically connected.

Preferably, the geophone comprises a first geophone used for surveying on the soft road surface, and the first geophone is inserted into the soft road surface and then exerts a resetting tension in a direction away from the soft road surface by a first elastic element;

and a locking mechanism is arranged in the frame and used for locking the first detector in a soft road surface, and the locking mechanism presses the first detector from the upper part.

As an alternative, the locking mechanism includes a base, a second elastic member, and a pin block;

the base is fixed in the frame, and the inner side of the base is provided with a groove;

the second elastic piece is embedded into the base and connected with the pin block, the pin block is installed in the groove in a sliding mode, and the inner side of the pin block extends out of the groove.

Preferably, the top of the inner side wall of the pin block is provided with an outward inclined slope, and the first geophone presses the slope outwards to slide across the slope when descending.

Preferably, the first detector is suspended below a sliding plate, a guide groove is arranged in the frame and used for guiding the sliding plate to move up and down, and the sliding plate can extrude the slope; the bottom of the first elastic piece is fixed on the sliding plate.

Preferably, an iron column is fixedly connected to the outer side of the pin block, an electromagnet is installed in the base and electrically connected with a signal receiving antenna, and the signal receiving antenna is in communication coupling with a remote controller; the remote controller controls the electromagnet to be electrified so as to adsorb the iron column to move outwards, and the pin block is separated from the sliding plate to realize unlocking.

Preferably, a plurality of hollowed-out cavities are formed in the frame by criss-cross partition bars, and the pair of first detectors are arranged in the two hollowed-out cavities in a back-to-back manner.

Preferably, a pair of second detectors for surveying on a hard road surface are arranged in the frame in a back mode, and the pair of second detectors and the pair of first detectors are distributed in a cross mode.

The invention also aims to provide a detachable seismic exploration line, which solves the problems of complex equipment assembly procedure, frequent disassembly in the exploration process, high equipment loss and high labor intensity of the exploration line.

The detachable seismic exploration operation line comprises wire tube groups, cable interfaces and the movable seismic exploration devices, wherein each wire tube group is provided with the movable seismic exploration device to form a detection unit, two adjacent wire tube groups are electrically connected through the cable interfaces, and the wire tube group at the tail end is connected with the host to form an exploration operation line;

each wire tube group comprises two wire tubes which are arranged in parallel, and the two wire tubes are fixedly connected with the two ends of the shaft respectively.

The invention has the beneficial effects that:

the movable seismic exploration device can be used for exploration by at least one detector, and the detectors are independent. The directional conductive slip ring is arranged on the shaft, the on-off state between the host and each detector on the frame is controllable through the directional conductive slip ring, and the frame is rotated to enable the directional conductive slip ring to conduct the detectors on the detection position with the host, so that the detectors with different functions are used for seismic exploration according to the road conditions, for example, exploration can be simultaneously carried out on a hard road and a soft road, and the directional conductive slip ring has strong field adaptability and high switching efficiency; the problems of equipment loss and the like caused by pulling and inserting the detector for multiple times and frequently disassembling and assembling the whole measuring line during exploration under the conditions of soft and hard road surfaces are effectively solved.

The directional conductive slip ring is divided into a two-layer structure, an insulating elastic sheet and a directional elastic sheet on the inner layer are fixed on a shaft, and the directional elastic sheet is made of a conductive material; a plurality of conductive elastic sheets on the outer layer are distributed in the same circumference, and each conductive elastic sheet is electrically connected with one detector through a sub-cable; the directional elastic sheet, the conductive elastic sheet on the detection position and the host are electrically connected. Only the conductive elastic sheet is connected with the sub-cable, and when the inner layer is fixed and the outer layer rotates, only the detector at the detection position is conducted with the host. The design can ensure that only the data of the effective detectors are collected, and the interference caused by the combined action of all the detectors is avoided.

The locking mechanism locks the first detector on the detection position in the frame during detection to prevent the first detector from returning, and unlocks the locking mechanism through remote control, so that the operation is simple and convenient, and the action is reliable.

The detachable two-dimensional seismic exploration operation line mainly comprises the detection units and the host, wherein the detection units are connected in sequence to form a detection line in actual measurement, the measurement depth and range can be increased and decreased along with the increase and decrease of the number of the measurement units, and the detection requirements of different measurement ranges and different measurement depths are met. The spliced detection line has the characteristics of light weight and high strength, meets the requirement that an operator holds the conduit to directly carry, and also meets the requirement that the operator drags the detection line to move.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of a detection unit configuration of a seismic survey line of the present invention;

FIG. 2 is a schematic front view of the mobile seismic survey apparatus of the present invention;

FIG. 3 is a schematic structural view of the directional conductive slip ring of the present invention;

FIG. 4 is a schematic view of the directional conductive slip ring of the present invention mounted on a frame;

FIG. 5 is a schematic view in partial cross-section of a mobile seismic survey apparatus of the present invention;

figure 6 is a schematic view of a conduit cable interface of the present invention.

Labeled as: 1. a mobile seismic exploration device; 2. a frame; 3. a parting strip; 4. hollowing out the cavity; 5. a first detector; 6. a second detector; 7. windowing; 8. a probe; 9. a shaft; 10. detecting a bit; 11. a directional conducting slip ring; 12. a conductive spring plate; 13. an insulating elastic sheet; 14. orienting the elastic sheet; 15. a sub-cable; 16. a main cable; 17. a first elastic member; 18. a base; 19. a second elastic member; 20. a pin block; 21. a signal line; 22. a groove; 23. a slope surface; 24. a slide plate; 25. a suspension rope; 26. a guide groove; 27. an iron column; 28. an electromagnet; 29. a conduit; 30. a cable interface; 31. a male opening; 32. a female port; 33. a limiting ring; 34. a connecting pipe; 35. an extension pipe.

Detailed Description

Example 1

A mobile seismic exploration device for detecting different types of targets, the present embodiment is exemplified by detecting transient surface waves of a soft road surface and a hard road surface, but is not limited to the above types, and includes other types known in the art.

As shown in fig. 1 and 2, the mobile seismic exploration device 1 includes a frame 2, a plurality of hollow cavities 4 are formed inside the frame 2 by a plurality of criss-cross parting strips 3, a pair of first detectors 5 are installed in the two hollow cavities 4 in a reverse manner, another pair of second detectors 6 are installed on the frame 2 in a reverse manner, and the first detectors 5 and the second detectors 6 are distributed in a cross shape. The top and bottom of the frame 2 are each provided with a window 7 through which a probe 8 of the first detector passes.

A shaft 9 is mounted in the middle of the frame 2 in the front-rear direction, the shaft 9 being fixed, and the frame 2 being rotatable about the shaft 9 so that one of the geophones is located at a detection location 10, the detection location 10 being towards the road surface, the detection location being the location of the active geophone, in this arrangement the location of the geophone coupled to the road surface.

As shown in fig. 3 and 4, a directional conductive slip ring 11 is mounted on the shaft 9, the directional conductive slip ring 11 is used for controlling the on-off state between the detector and the host, the rotating frame 2 enables the directional conductive slip ring 11 to conduct the detector on the detection position with the host, and other detectors are not conducted with the host.

Specifically, the directional conductive slip ring 11 includes a conductive elastic piece 12, an insulating elastic piece 13, and a directional elastic piece 14.

Three insulating elastic pieces 13 and one orientation elastic piece 14 are fixed on the outer wall of the shaft 9 at intervals in the same circumferential direction, are positioned at the inner layer relative to the conductive elastic piece 12 and are fixed. The directional elastic sheet 14 is made of conductive material, the directional elastic sheet 14 is located at the detection position 10 and is connected with the sub-cable 15, and the sub-cable 15 is connected with the main cable 16 and is further connected with the host.

The four conductive elastic sheets 12 are positioned on the outer layer and are all positioned in the same circumference, the conductive elastic sheets 12 are insulated, and each conductive elastic sheet 12 is connected with one detector through a signal wire 21. The outer conductive elastic sheet 12 and the frame 2 rotate synchronously, so that the conductive elastic sheet 12 on the detection position 10 is conducted with the directional elastic sheet 14, the detector corresponding to the conductive elastic sheet is conducted with the host, signal transmission is realized, and other elastic sheets are not conducted.

As shown in fig. 2, the detector further comprises a first elastic member 17, the top of the first elastic member 17 is mounted on a transverse parting strip, when the first detector 5 is in operation, after the probe 8 of the first detector is inserted into a soft road surface, the first elastic member 17 applies a resetting tension to the direction away from the soft road surface, so that the first detector 17 is automatically reset after detection is completed. The first elastic member 17 may be an extension spring.

A locking mechanism is arranged in the frame 2 and used for locking the probe 8 in a soft road surface and preventing the first detector 5 from rebounding in operation. The locking mechanism presses the first pickup 5 from above.

Specifically, as shown in fig. 2 and 5, the locking mechanism includes a base 18, a second elastic member 19, and a pin block 20.

The bases 18 are pairwise fixed on two parallel longitudinal parting strips of the frame 2, a spring cavity is arranged in each base 18, the second elastic pieces 19 are installed in the spring cavity, the second elastic pieces 19 can select compression springs, and the end parts of the second elastic pieces 19 are abutted to the pin blocks 20. The inner side of the base 18 is provided with a groove 22 which is communicated with the spring cavity, the pin block 20 is inserted into the groove 22, the pin block 20 can be arranged in the groove 22 in a left-right sliding mode, and the inner side of the pin block 20 extends out of the groove 22 in a free state.

The top of the inner side wall of the pin block 20 is provided with an outward inclined slope 23, when the first detector 5 descends, the slope 23 is pressed outwards, so that the pin block 20 is pressed, the pin block 20 is retracted into the groove 22, and then the first detector 5 slides over the slope 23 and is inserted into a soft road.

The bottom of the first elastic element 17 is arranged on a sliding plate 24, the first detector 5 is arranged below the sliding plate 24 through a suspension rope 25, guide grooves 26 for guiding the sliding plate 24 to move up and down are arranged on the inner side walls of the other two longitudinal division bars, two ends of the sliding plate 24 respectively extend into the two guide grooves 26, and the sliding plate 24 extrudes the slope 23 of the pin block when moving downwards.

The device remotely controls the pin block 20 to automatically unlock the first detector. As an alternative embodiment, an iron column 27 is fixedly connected to the outer side of the pin block 20, the iron column 27 is located in the spring cavity, a micro electromagnet is installed in the base 18, the electromagnet 28 is powered by a battery, the electromagnet 28 is electrically connected with a signal receiving antenna in an on-off manner, and the signal receiving antenna is in communication connection with a remote controller; the remote controller transmits an electric signal to the signal receiving antenna, so that the electromagnet 28 is electrified to adsorb the iron column 27 to move outwards, the pin block 20 is separated from the sliding plate 24, and the sliding plate 24 moves upwards under the action of the tension of the first elastic piece 17 to realize remote unlocking.

Other remote unlocking modes can be used, for example, a remote controller controls the micromotor or the micro-cylinder to drive the pin block to move outwards, and the like, and the detailed description is omitted.

When the device is used for detecting the surface waves of a soft road surface, the frame 2 is rotated, one first detector 5 in the frame 2 is rotated to a detection position, the first detector 5 is communicated with a host under the action of the directional conductive slip ring 11, and the host only collects the data of the first detector.

Then the first detector 5 is pressed downwards, the probe 8 of the first detector is inserted into the soft road surface, the sliding plate 24 presses the pin block 20 outwards when passing through the pin block 20, and after sliding through the pin block, the pin block 20 is reset inwards under the pressure of the second elastic piece 19 and is pressed on the top of the sliding plate 24, so that the first detector 5 is prevented from resetting.

After the detection is finished, the remote controller is used for controlling the pin block 20 to retract into the base 18, the sliding plate 24 is unlocked, and the first detector 5 automatically resets under the action of the tension of the first elastic piece 17.

When the device is used for detecting hard road surfaces, couplants such as gypsum and the like are coated on the lower part of the second detector 6 to improve the coupling effect; and rotating the frame 2 to enable the second detector 6 to face the road surface, wherein the second detector 6 is communicated with a host under the action of the directional conductive slip ring 11, and the host only collects data of the second detector.

Example 2

As shown in fig. 1, a detachable seismic exploration line comprises two wire tube groups, a cable interface 30 and the mobile seismic exploration device 1 in embodiment 1, wherein each wire tube group comprises two wire tubes 29 arranged in parallel, and one mobile seismic exploration device 1 is mounted on each wire tube group to form a detection unit. Main cables penetrate through the wire pipes 29 of the wire pipe groups, the main cables of the front and rear adjacent wire pipe groups are connected at a cable interface 30, and the main cable in the wire pipe group at the tail end is connected with a host machine to form an exploration operation line.

The exploration operation line can move or drag the whole measuring line at the same time, and the trouble that the device needs to be dismantled and re-placed when measuring one measuring line is avoided.

As shown in fig. 1 and 6, the cable interface 30 is located at both ends of the wire tube set, and the two ends of the wire tube set have a male opening 31 and a female opening 32 which are matched with each other, and one end of the wire tube set is further provided with a stop collar 33. During assembly, the cable interfaces at two ends are butted, then the male port 31 and the female port 32 are in threaded connection, torsion is applied, the limiting ring 33 is abutted to the inner wall of the female port, and the two sections of lead pipe groups are tightly pressed to form rigid connection. The lead pipe group joint of the embodiment can meet the strength requirements of repeated disassembly, assembly, transportation and dragging, and has considerable rigidity.

Two parallel conduits 29 are connected by a connecting tube 34 to form a more stable H-shaped structure. Vertical extension pipes 35 are fixedly arranged below the two wire conduits 29, and the two extension pipes 35 are fixedly connected with two ends of the shaft 9 respectively. The end of sub-cable 15 is electrically connected to directional slide 14, and sub-cable 15 passes through extension tube 35 and into conduit 29.

The length and height of the mobile seismic exploration device 1 are the same, for example, the length, width and height are respectively 0.25m, 0.2m and 0.25m, because the exploration device is of a symmetrical structure, the exploration of the next exploration point can be carried out when the multiple of the length of two side lengths, namely the multiple of 0.5m, is moved, the design can meet the requirement of most exploration on the distance between points, and the tape can be removed under the condition that the side length of the measurement device is known, and the side length of the exploration device is directly used for distance measurement.

The using method of the exploration operation line comprises the following steps:

the selected road surface must be ensured to be straight and cannot have overlarge fluctuation;

assembling equipment according to the required detection depth, placing the central point of the connected detection unit at the position of an exploration point, connecting the detection unit with a host and a power supply, placing the host, the power supply and the like on a trolley, and moving along with the movement of an exploration operation line; when the host moves, the host and the detection unit move simultaneously, so that the interface is prevented from being broken; when the equipment is transported, at least three persons cooperate simultaneously to avoid the equipment group from being broken due to stress;

rotating the frame 2, selecting a proper detector according to the soft and hard degree of the road surface, checking whether the detector is conducted or not, and starting to measure;

triggering an unlocking button after each measurement, automatically rebounding and withdrawing the detector under the action of the unlocking mechanism, resetting the unlocking mechanism, moving the movable seismic exploration device on the exploration operation line backwards for a certain distance, and measuring a next exploration point, wherein the moving distance is determined according to the measurement precision requirement;

after the measurement of the whole exploration operation line is finished, the equipment group is integrally moved to the next exploration operation line, and the steps are repeated;

and when all the measurements are completed, the equipment is dismantled, and the equipment is sorted and recovered.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A mobile seismic surveying apparatus comprising:

a frame that rotates about an axis;

at least one detector is arranged in the frame, and the frame is rotated to enable one of the detectors to be located at a detection position, wherein the detection position faces a road surface;

and a directional conductive slip ring is arranged on the shaft, and the frame is rotated to enable the directional conductive slip ring to conduct the detector on the detection position with the host.

2. The mobile seismic surveying device of claim 1, wherein the directional conducting slip ring comprises a conducting dome, an insulating dome, and a directional dome;

the insulating elastic sheet and the directional elastic sheet are fixed on the shaft at intervals in the same circumferential direction, and the directional elastic sheet is made of a conductive material;

the conductive elastic sheets are distributed in the same circumference of the outer side of the insulating elastic sheet, the conductive elastic sheets are insulated, and each conductive elastic sheet is electrically connected with one detector;

the directional elastic sheet is positioned on the detection position, and the directional elastic sheet, the conductive elastic sheet positioned on the detection position and the host are electrically connected.

3. Mobile seismic surveying arrangement according to claim 2,

the detector comprises a first detector for exploring on the soft road surface, and a probe of the first detector is inserted into the soft road surface and then exerts reset tension in the direction far away from the soft road surface through a first elastic piece;

and a locking mechanism is arranged in the frame and used for locking the probe in a soft road surface, and the first detector is pressed by the locking mechanism from the upper part.

4. The mobile seismic surveying arrangement of claim 3 wherein the locking mechanism comprises a base, a second resilient member and a pin block;

the base is fixed in the frame, and the inner side of the base is provided with a groove;

the second elastic piece is embedded into the base and connected with the pin block, the pin block is installed in the groove in a sliding mode, and the inner side of the pin block extends out of the groove.

5. The mobile seismic surveying arrangement of claim 4 wherein the pin is provided with an outwardly sloping surface at the top of its inner side wall, the first geophone moving downwardly pressing the surface outwardly to slide over the surface to retract the pin into the slot.

6. The mobile seismic surveying arrangement of claim 5 wherein the first resilient member is secured at its base to a skid plate, the first geophone being mounted below the skid plate; the frame is internally provided with a guide groove for guiding the up-and-down movement of the sliding plate, and the sliding plate extrudes the slope surface when moving.

7. The mobile seismic surveying device of claim 6, wherein an iron column is fixedly connected to the outside of the pin block, an electromagnet is installed in the base, the electromagnet is electrically connected with a signal receiving antenna, and the signal receiving antenna is communicatively coupled with a remote controller; the remote controller controls the electromagnet to be electrified so as to adsorb the iron column to move outwards, and the pin block is separated from the sliding plate to realize unlocking.

8. The mobile seismic surveying device of claim 3 wherein a plurality of hollowed-out cavities are formed in the frame by criss-cross spacers, and a pair of said first receivers are mounted in two of said hollowed-out cavities in an opposing relationship; and windows are arranged at the top and the bottom of the frame and used for the probe of the first detector to pass through.

9. A mobile seismic surveying arrangement according to claim 3 wherein a pair of second receivers for surveying on hard surfaces are mounted behind one another in the frame, the pair of second receivers being cruciform with the pair of first receivers.

10. A detachable seismic exploration line, comprising a plurality of conductor pipe sets and the mobile seismic exploration device as claimed in any one of claims 1 to 9, wherein each conductor pipe set is provided with the mobile seismic exploration device to form a detection unit, two adjacent conductor pipe sets are electrically connected by a cable interface, and the conductor pipe set at the tail end is connected with a host to form a seismic exploration line;

each wire tube group comprises two wire tubes which are arranged in parallel, and the two wire tubes are fixedly connected with the two ends of the shaft respectively.

Images