CN216247809U

CN216247809U - Transmitting device of rock integrity test sensor in horizontal drilling

Info

Publication number: CN216247809U
Application number: CN202122766292.8U
Authority: CN
Inventors: 虎雄岗; 邓成邦; 孙凤娟; 向颖超; 廖华; 陈兴敏; 张星辉
Original assignee: Yunnan Design Institute Group Survey Institute Co ltd
Current assignee: Yunnan Design Institute Group Survey Institute Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-08
Anticipated expiration: 2031-11-12

Abstract

The utility model relates to the field of rock integrity testing sensors, in particular to a transmitting device of a rock integrity testing sensor in a horizontal drilling hole. Set up the stiff rod at the afterbody of pine circle tester, compare in the past and control the pine circle tester through the cable, set up the degree of depth that can enter into horizontal drilling through the control pine circle tester that the stiff rod is more free like this. Through establish a plurality of strutting arrangement at the cover on the outer wall of pine mobile ring tester, can be when using the pine mobile ring tester like this, strutting arrangement can make the pine mobile ring tester keep at the middle part of horizontal drilling through the pore wall slip laminating with horizontal drilling, just so can make the signal that the sensor sent is received to the rock mass around simultaneously.

Description

Transmitting device of rock integrity test sensor in horizontal drilling

Technical Field

The utility model relates to the field of rock integrity testing sensors, in particular to a transmitting device of a rock integrity testing sensor in a horizontal drilling hole.

Background

A tunnel engineering geological drilling hole is planned to carry out single-hole longitudinal wave (ultrasonic) test, the test result can be used for dividing a rock weathering crust and evaluating the strength of the rock weathering crust, surveying a deep stratum weak structural surface, a crushing development condition and a karst development characteristic, the integrity coefficient Kv of the drilling rock is calculated, the integrity of the drilling rock is judged, and the evaluation basis of tunnel site selection, excavation feasibility and stability is provided.

The loosening ring detector is used for analyzing the integrity condition of a surrounding rock body by applying different propagation speeds of ultrasonic waves in different media. The longitudinal wave velocity Vpm of the rock mass can be measured by using on-site exploration drilling, and the longitudinal wave velocity Vpr of the rock is measured by taking an intact undegraded rock sample, so that the integrity index Kv of the rock mass is calculated according to a formula and is used for classifying the quality grade and the engineering mechanical property of the rock mass.

Ultrasonic waves (longitudinal waves) react extremely sensitively to fractures in the rock mass, with the wave velocity being lower the more developed a fracture and vice versa.

The main method for testing the longitudinal wave of the rock mass is a drilling method. In order to ensure good contact between the sensor and the hole wall, some substance is used as a coupling agent, and the drilling method usually uses water as the coupling agent. In the engineering geological drilling, a transmitting transducer and a receiving transducer are arranged, and moving point measurement is carried out from the deep part of the drilling to the hole opening in the whole hole full depth range. The bore is typically inclined downwardly by 2 to 3 degrees to allow water to flood the sensor after the water is injected. The velocity of the longitudinal wave is calculated by measuring the propagation time of the sound wave in the surrounding rock at a certain distance in the borehole.

Therefore, accurate measurement of the compression wave velocity of the rock mass becomes an important prerequisite for calculating the integrity index of the rock mass.

At present, adopt the loose coil tester to carry out tunnel rock mass compression wave velocity test usually, make the tester sensor fully contact in rock mass around through adopting water as couplant, but this is unscientific, unreasonable to the test in the horizontal drilling, and the leading reason is because:

1. the test in the tunnel horizontal drilling hole should be located in the center of the drilling hole theoretically, so that the surrounding rock masses can receive signals sent by the sensors at the same time, and in fact, the sensors cannot be guaranteed to be located in the middle of the drilling hole in the test process, but are tightly attached to the rock masses at the lower part of the drilling hole, so that the surrounding rock masses cannot receive the signals sent by the sensors at the same time;

2. joint cracks in the rock mass prevent water from remaining in the borehole and do not act as a coupling agent.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a transmitting device of a sensor for testing the integrity of a rock mass in a horizontal drilling hole, which solves the problem that when the compression wave velocity of a tunnel rock mass is tested in the horizontal drilling hole in the prior art, a loosening ring tester is tightly attached to the rock mass at the lower part of the drilling hole, so that the surrounding rock mass cannot simultaneously receive signals transmitted by the sensor.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a rock mass integrality test sensor emitter in horizontal drilling, includes loose coil tester, hard pole and a plurality of strutting arrangement, and hard pole sets up in the afterbody of loose coil tester, and a plurality of strutting arrangement are connected with a plurality of rolling balls on the outer wall of sensor is located to the length direction cover of loose coil tester, the outside of encircleing strutting arrangement.

A further technical scheme is that the supporting device comprises a fixing ring and a plurality of elastic supporting rods, the inner wall of the fixing ring is connected with the outer wall of the loosening ring tester, the plurality of elastic supporting rods are evenly arranged along the outer wall of the fixing ring, one end of each elastic supporting rod is detachably connected with the outer wall of the fixing ring, and the other end of each elastic supporting rod is connected with the rolling ball in a rolling mode through the rolling ball cover.

Still further technical scheme is, the elastic support pole is including the first linkage segment that connects gradually, second linkage segment and third linkage segment, the second linkage segment is provided with the elastic groove towards the one end of first linkage segment, the other end is provided with the thread groove, the one end of first linkage segment and the outer wall of ball cover link to each other, the other end pierces into in the elastic groove, and be connected with the spring in the elastic groove, the one end that the first linkage segment was kept away from to the spring links to each other with the tank bottom in elastic groove, the one end of third linkage segment and solid fixed ring's outer wall buckle link to each other, the other end pierces into in the thread groove and the cell wall screw thread interlock of thread groove links to each other.

A further technical scheme is that the outer wall of the fixing ring is provided with a connecting portion, one side, away from the fixing ring, of the connecting portion is provided with a connecting groove, and the connecting groove is connected with the third connecting section in a buckled mode.

A further technical scheme is that a containing groove is formed in the side face of the third connecting section, an elastic plate is connected to the groove wall, away from one side of the fixing ring, of the containing groove, one side, away from the bottom of the containing groove, of the elastic plate is connected with a hemisphere, a clamping groove is formed in the groove wall of the connecting groove, and when the third connecting section is connected with the connecting groove, the hemisphere is clamped in the clamping groove.

A further technical scheme is that one end of the elastic plate facing the fixing ring is provided with an inclined plane, one end of the inclined plane is connected with one side of the hemispheroid facing the fixing ring, the other end of the inclined plane is connected with one side of the bottom of the accommodating groove of the elastic plate facing the elastic plate, and the inclined plane is gradually close to the fixing ring from one end connected with the hemispheroid to the other end of the inclined plane.

According to a further technical scheme, a rolling groove is formed in one side, away from the first connecting section, of the rolling ball cover, the rolling ball is arranged in the rolling groove in a rolling mode, and one side, away from the bottom of the rolling groove, of the rolling ball cover penetrates out of a notch of the rolling groove and is arranged on the outer side of the rolling ball cover.

The technical scheme is that a plurality of ball grooves are formed in the groove walls of the rolling grooves, balls are arranged in the ball grooves in a rolling mode, one side, far away from the groove bottoms of the ball grooves, of each ball penetrates out of the groove openings of the ball grooves, and the balls are attached to the outer walls of the rolling balls in the rolling grooves in a rolling mode.

A further technical scheme is that a brush is arranged around the notch of the rolling groove, and one end, far away from the notch of the rolling groove, of the brush is attached to the surface of the rolling ball in a sliding mode.

The further technical scheme is that the outer wall of the third connecting section is provided with scale marks along the length direction.

Compared with the prior art, the utility model has the beneficial effects that: set up the stiff rod at the afterbody of pine circle tester, compare in the past and control the pine circle tester through the cable, set up the degree of depth that can enter into horizontal drilling through the control pine circle tester that the stiff rod is more free like this. Through establish a plurality of strutting arrangement at the cover on the outer wall of pine circle tester, can be when using the pine circle tester like this, strutting arrangement can make the pine circle tester keep at the middle part of horizontal drilling through the pore wall slip laminating with horizontal drilling, just so can make the signal that the pine circle tester sent is received to the rock mass around simultaneously. The problem of in the past when carrying out tunnel rock mass compression wave velocity test in horizontal drilling, the rock mass of slip ring tester hug closely horizontal drilling lower part makes the surrounding rock mass unable simultaneously to accept the signal that the slip ring tester sent is solved. The loosening ring tester can move in the horizontal drilling hole conveniently by connecting the plurality of rolling balls on the outer side of the supporting device.

Drawings

FIG. 1 is a schematic side view of a sensor-launching device for testing the integrity of a rock body in a horizontal borehole according to the present invention.

FIG. 2 is a schematic cross-sectional view of a sensor transmitting device for testing the integrity of a rock body in a horizontal borehole according to the present invention.

Fig. 3 is a partially enlarged schematic view of a mark a in fig. 2.

Fig. 4 is a partially enlarged schematic view of a mark B in fig. 2.

Icon: 1-loosening ring tester, 2-hard rod, 3-rolling ball, 4-fixed ring, 5-rolling ball cover 6-first connecting section, 7-second connecting section, 8-third connecting section, 9-elastic groove, 10-thread groove, 11-spring, 12-connecting section, 13-connecting groove, 14-accommodating groove, 15-elastic plate, 16-hemisphere, 17-buckling groove, 18-inclined surface, 19-rolling groove, 20-rolling ball groove, 21-rolling ball, 22-hairbrush, 23-rock mass and 24-horizontal drilling hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Example (b):

fig. 1 to 4 show an embodiment of the present invention.

The utility model provides a rock mass integrality test sensor emitter in horizontal drilling, includes loose circle tester 1, hard pole 2 and a plurality of strutting arrangement, and hard pole 2 sets up in the afterbody of loose circle tester 1, and a plurality of strutting arrangement are connected with a plurality of rolling balls 3 along the length direction cover of loose circle tester 1 on locating the outer wall of sensor in the outside of strutting arrangement. Set up the stiff rod 2 at the afterbody of loose circle tester 1, compare in the past and control loose circle tester 1 through the cable, set up the degree of depth that can enter into horizontal drilling 24 through the control loose circle tester 1 that the stiff rod 2 is more free like this. Through establish a plurality of strutting arrangement at the cover on the outer wall of loose coil tester 1, can be like this when using loose coil tester 1, strutting arrangement can make loose coil tester 1 keep in the middle part of horizontal drilling 24 through sliding fit with the pore wall of horizontal drilling 24, just so can make around rock mass 23 receive the signal that loose coil tester 1 sent simultaneously. The problem of when carrying out tunnel rock mass 23 compressional wave velocity test in horizontal drilling hole 24 in the past, the loose coil tester 1 hugs closely the rock mass 23 of horizontal drilling hole 24 lower part, makes the signal that loose coil tester 1 sent can't be accepted simultaneously to surrounding rock mass 23 is solved. By attaching a plurality of rolling balls 3 on the outside of the support means, the movement of the loose coil tester 1 in the horizontal bore hole 24 is facilitated.

In the using process, an operator holds the hard rod 2, the head of the loosening ring tester 1 is placed into the horizontal drilling hole 24, then the hard rod 2 is pushed, the loosening ring tester 1 gradually enters the horizontal drilling hole 24, and in the pushing process, a sensor in the loosening ring tester 1 sends a signal to the surrounding rock mass 23 to detect the integrity of the rock mass 23.

The supporting device comprises a fixing ring 4 and a plurality of elastic supporting rods, the inner wall of the fixing ring 4 is connected with the outer wall of the loosening ring tester 1, the plurality of elastic supporting rods are evenly arranged along the outer wall of the fixing ring 4, one end of each elastic supporting rod is detachably connected with the outer wall of the fixing ring 4, and the other end of each elastic supporting rod is connected with a rolling ball 3 in a rolling mode through a rolling ball cover 5. In the conventional case, the number of the elastic support rods is uniformly set to 4 along the outer wall of the fixed ring 4. With the arrangement, when an operator holds the hard rod 2 to push the loose coil tester 1 to move in the horizontal drilling hole 24, the hole wall of the horizontal drilling hole 24 cannot be completely smooth and flat, and the situation of pothole or bulge is inevitable. Through the cooperation of a plurality of elastic support rods, the rolling ball cover 5 and the rolling ball 3, on one hand, the contact area between the rolling ball 3 and the hole wall of the horizontal rotating hole 24 can be reduced, so that some pits and bulges can be avoided. Simultaneously through setting up the elastic support pole, can be with the help of the elasticity of elastic support pole itself, when meetting hollow or protruding, can make the smooth passing through these places of the loose coil tester 1 through the flexible of elastic support pole. But also enables the loose coil tester to adapt to horizontal drilling holes 24 with more apertures by means of the cooperation of a plurality of elastic supporting rods.

The elastic support pole is including the first linkage segment 6 that connects gradually, second linkage segment 7 and third linkage segment 8, second linkage segment 7 is provided with elastic groove 9 towards the one end of first linkage segment 6, the other end is provided with thread groove 10, the one end of first linkage segment 6 and the outer wall of spin cover 5 link to each other, the other end is worn into in the elastic groove 9, and there is spring 11 at elastic groove 9 in-connection, the one end that first linkage segment 6 was kept away from to spring 11 links to each other with the tank bottom of elastic groove 9, the one end of third linkage segment 8 and the outer wall buckle of solid fixed ring 4 link to each other, the other end is worn into in the thread groove 10 and the cell wall screw thread interlock of thread groove 10 links to each other. In a conventional arrangement, a first thread is arranged on the wall of the thread groove 10, a second thread is arranged on the outer wall of the third connecting section 8 close to the second connecting section 7, and the first thread and the second thread are meshed in a threaded manner. Before the loose coil tester 1 is fed into the horizontal bore hole 24, the length of the resilient support rod may be adjusted according to the bore diameter of the horizontal bore hole 24. The specific method is that the length of the third connecting section 8 entering the thread groove 10 is adjusted by rotating the second connecting section 7, so as to adjust the length of the whole elastic support rod. After adjusting to a suitable length, the loose coil tester 1 is fed into the horizontal bore 24 by the hard rod 2, and then the aperture of the horizontal bore 24 and some depressions and protrusions in the horizontal bore can be further accommodated by the first connecting section 6 in the elastic groove 9 by the elastic force of the spring 11.

Be provided with connecting portion 12 on solid fixed ring 4's the outer wall, connecting portion 12 is kept away from one side of solid fixed ring 4 and is provided with spread groove 13, and spread groove 13 and the 8 buckles of third linkage segment link to each other. Such setting can be when not using loose coil tester 1, through extracting third linkage segment 8 from the spread groove 13 to make the separation of elastic support pole and solid fixed ring 4, be favorable to reducing the volume of loose coil tester 1 like this, be convenient for accomodate.

The side of third linkage segment 8 is provided with accomodates groove 14, accomodates and is connected with elastic plate 15 on the cell wall of groove 14 keeping away from solid fixed ring 4 one side, and one side that groove 14 tank bottom was kept away from to elastic plate 15 is connected with hemisphere 16, is provided with buckle groove 17 on the cell wall of spread groove 13, and when third linkage segment 8 and spread groove 13 linked to each other, hemisphere 16 card was located in buckle groove 17. The shape of the bottom of the buckling groove 17 is set to match the arc shape of the hemisphere 16. With this arrangement, when the loose coil tester 1 is to be used, the third connecting section 8 is pushed into the connecting groove 13 by holding the second connecting section 7. In the pushing process, the hemisphere 16 is firstly squeezed by the notch of the connecting groove 13, so that the elastic plate 15 is pushed to be retracted into the accommodating groove 14, when the hemisphere 16 moves to the buckling groove 17 in the connecting groove 13, the elastic plate 15 pushes the hemisphere 16 to enter the buckling groove by virtue of elasticity, and the third connecting section 8 is buckled and connected with the connecting groove 13. After the use is finished, the second connecting section 7 is held, and the third connecting section 8 is pulled out from the connecting groove 13 by force.

The elastic plate 15 is provided with a slope 18 towards the one end of the fixed ring 4, the one end of the slope 18 and the hemisphere 16 are connected towards one side of the fixed ring 4, the other end and the elastic plate 15 are connected towards one side of the bottom of the accommodating groove 14, and the slope 18 is gradually close to the fixed ring 4 from one end connected with the hemisphere 16 to the other end. By providing the inclined surface 18, in the process of pushing the third connecting section 8 into the connecting groove 13 by holding the second connecting section 7, the inclined surface 18 can be used for matching with the notch of the connecting groove 13 to push the hemisphere 16 to retract into the accommodating groove 14.

The side of the rolling ball cover 5 far away from the first connecting section 6 is provided with a rolling groove 19, the rolling ball 3 is arranged in the rolling groove 19 in a rolling manner, and the side far away from the bottom of the rolling groove 19 penetrates out of the notch of the rolling groove 19 and is arranged outside the rolling ball cover 5. Such an arrangement can facilitate the rolling ball 3 to roll in various directions. Under the conventional arrangement, most of the rolling ball 3 is arranged in the rolling groove 19, and only a small part of the rolling ball is exposed out of the rolling groove 19, so that the rolling ball 3 can be limited by the notch of the rolling groove 19 and cannot fall out.

The groove wall of the rolling groove 19 is provided with a plurality of ball grooves 20, balls 21 are arranged in the ball grooves 20 in a rolling mode, one side, far away from the groove bottom of the ball grooves 20, of each ball 21 penetrates out of the groove opening of the ball groove 20, and the ball grooves 19 are attached to the outer wall of the rolling ball 3 in a rolling mode. By providing the balls 21 and the ball grooves 20, the rolling balls 3 can be made to roll more smoothly in the east grass 19.

A brush 22 is arranged around the notch of the rolling groove 19, and one end of the brush 22 far away from the notch of the rolling groove 19 is in sliding fit with the surface of the rolling ball 3. Through setting up brush 22, can make the clearance roll ball 3 surface some dust and the fritter that are infected with in the rolling process, avoid these dust and the fritter entering into rolling groove 19, cause the roll ball 3 to roll unsmoothly.

The outer wall of the third connecting section 8 is provided with scale marks along the length direction. Through setting up the scale mark, be convenient for adjust the length of a plurality of resilient support rods to unanimity.

Although the utility model has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The utility model provides a rock mass integrality test sensor emitter in horizontal drilling, its characterized in that, including loose circle tester (1), hard pole (2) and a plurality of strutting arrangement, hard pole (2) set up in the afterbody of loose circle tester (1), and are a plurality of strutting arrangement encircles on the outer wall of sensor is located to the length direction cover of loose circle tester (1) strutting arrangement's the outside is connected with a plurality of rolling balls (3).

2. The transmitter of claim 1, wherein the transmitter comprises: the supporting device comprises a fixing ring (4) and a plurality of elastic supporting rods, the inner wall of the fixing ring (4) is connected with the outer wall of the loosening ring tester (1) and is multiple, the elastic supporting rods are evenly arranged along the outer wall of the fixing ring (4), one end of each elastic supporting rod is detachably connected with the outer wall of the fixing ring (4), and the other end of each elastic supporting rod is connected with the rolling ball (3) in a rolling mode through a rolling ball cover (5).

3. The transmitter of claim 2, wherein the transmitter comprises: the utility model discloses a ball cover, including the elastic support pole, the one end of first linkage segment (6) of elastic support pole orientation is provided with elasticity groove (9), and the other end is provided with thread groove (10), the one end of first linkage segment (6) and the outer wall of ball cover (5) link to each other, and the other end is worn into in elasticity groove (9) including first linkage segment (6), second linkage segment (7) and third linkage segment (8) that connect gradually, second linkage segment (7) are provided with elasticity groove (9) towards the one end of first linkage segment (6) and thread groove (10), the one end that first linkage segment (6) were kept away from in spring (11) links to each other with the tank bottom of elasticity groove (9), the one end of third linkage segment (8) and the outer wall buckle of solid fixed ring (4) link to each other, and the other end is worn into in thread groove (10) and the interlock screw thread of thread groove (10) links to each other.

4. The transmitter of claim 3, wherein the transmitter comprises: be provided with connecting portion (12) on the outer wall of solid fixed ring (4), one side that solid fixed ring (4) was kept away from in connecting portion (12) is provided with spread groove (13), spread groove (13) and third linkage segment (8) buckle link to each other.

5. The transmitter of claim 4, wherein the transmitter comprises: the side of third linkage segment (8) is provided with accomodates groove (14), it is connected with elastic plate (15) to accomodate groove (14) on keeping away from the cell wall of solid fixed ring (4) one side, one side of accomodating groove (14) tank bottom is kept away from in elastic plate (15) is connected with hemisphere (16), be provided with buckle groove (17) on the cell wall of spread groove (13), when third linkage segment (8) and spread groove (13) link to each other, hemisphere (16) card is located in buckle groove (17).

6. The transmitter of claim 5, wherein the transmitter comprises: elastic plate (15) are provided with inclined plane (18) towards the one end of solid fixed ring (4), the one end and hemisphere (16) of inclined plane (18) link to each other towards one side of solid fixed ring (4), and the other end links to each other with one side of elastic plate (15) orientation holding groove (14) tank bottom to inclined plane (18) is close to solid fixed ring (4) gradually by the one end that links to each other with hemisphere (16) to the other end.

7. The transmitter of claim 3, wherein the transmitter comprises: one side of the rolling ball cover (5) far away from the first connecting section (6) is provided with a rolling groove (19), the rolling ball (3) is arranged in the rolling groove (19) in a rolling mode, one side of the rolling ball cover far away from the bottom of the rolling groove (19) penetrates out of a notch of the rolling groove (19), and the rolling ball cover (5) is arranged on the outer side of the rolling ball cover.

8. The transmitter of claim 7, wherein the transmitter comprises: be provided with a plurality of ball grooves (20) on the cell wall of roll groove (19), the roll is provided with ball (21) in ball groove (20) the roll, ball (21) are kept away from one side of ball groove (20) tank bottom and are worn out from the notch in ball groove (20) to roll the laminating with the outer wall of roll ball (3) in roll groove (19).

9. The transmitter of claim 8, wherein the transmitter is adapted to transmit the sensor for testing the integrity of the rock mass in the horizontal borehole: a brush (22) is arranged around the notch of the rolling groove (19), and one end of the brush (22) far away from the notch of the rolling groove (19) is attached to the surface of the rolling ball (3) in a sliding manner.

10. The transmitter of claim 3, wherein the transmitter comprises: and scale marks are arranged on the outer wall of the third connecting section (8) along the length direction of the third connecting section.