CN206847576U - A kind of acoustic emission monitoring system - Google Patents

Abstract

The utility model discloses a kind of acoustic emission monitoring system, including acoustic emission sensor and ground handling station, acoustic emission sensor is used to be arranged in the drilling of monitored rock mass, by acoustic emission probe, probe installing mechanism and the installing mechanism for being provided with acoustic emission probe is sent to the transport mechanism of setting position in drilling formed.Installing mechanism of being popped one's head in the utility model acoustic emission monitoring system is connected by the plug type between end cap above the cover plate of guidance set second and probe sleeve to be coordinated, solves the problem that acoustic emission sensor is effectively installed and coupled, it is not only convenient for transmitting acoustic emission probe, and the coupling effect of acoustic emission probe and borehole wall is may insure, so as to strengthen the monitoring to rock (body) engineering stability and rock burst dynamic disaster and forecast reliability；Further, it is also possible to realize multiple acoustic emission probes while be combined, there is the wider scope of application.

Description

A kind of acoustic emission monitoring system

Technical field

Rock (body) project security monitoring technical field that the utility model belongs in engineering construction, is related to a kind of sound emission Monitoring system.

Background technology

Rock (body) deformation failure in engineering construction, particularly rock burst dynamic disaster, it can directly jeopardize the safety of engineering Construction, or even devastating impact can be caused, therefore to rock (body) stability and rock burst dynamic disaster progress effectively monitoring and in advance Report, is one of important content of engineering safety construction.At present, a kind of important means of the sound emission as non-destructive monitoring, is used for The monitoring and forecast of rock (body) stability and rock burst dynamic disaster in engineering construction.

In underground engineering wall rock excavates process of construction, in order to enter to the failure and deformation of surrounding rocks being likely to occur and dynamic disaster Row Accurate Prediction, the acoustic emission sensor needs as acoustic emission monitoring system important component are in advance before engineering excavation The form of three-dimensional spatial distribution is arranged in monitored country rock region, and the number of sensors arranged is more, monitoring effect phase To more accurate.

In specific implementation, it is necessary to before rock (body) excavation, drilled using rig in stone (body), drilling depth Increase with engineering buried depth, monitored scope increase；But drilling is deeper, acoustic emission sensor installation is more difficult.At present, sound is sent out Sensor mounting means is penetrated mainly including following several：

(1) in engineering site, directly acoustic emission probe is put in the borehole, by the liquid medium remained in drilling (such as Water) medium that is transmitted as signal between rock mass and acoustic emission probe, the detectable signal received passes through line by acoustic emission probe Cable is transferred to ground monitoring system；But there is following drawback in this method：It is downward that 1. this implementation is appropriate only for direction Drilling, and for the fully horizontal or upward drilling for having certain angle, do not applied to due to being difficult to medium for storing；Even for Under drilling, it is still necessary to the rock mass for the surrounding that drills is relatively complete, so as to avoid transmission medium from borehole fissure be lost in or ooze out, really Acoustic emission probe is protected to be in transmission medium all the time, but on-site actual situations are but relatively inaccessible to the requirement, so as to influence to monitor Effect；Although 2. the couplant that the liquid between rock mass and acoustic emission probe can transmit as signal, the density of liquid General relatively low, its signal transmission effect with palisades not as effectively contacting received detection letter directly by acoustic emission probe Number.

(2) in order to ensure placing efficient coupling between acoustic emission probe and the wall of a borehole in the borehole, may be used also in engineering site Using the casting cement into drilling, acoustic emission probe and palisades are made to be cast for an entirety, although this method can solve Effective transmission problem of detectable signal, but still suffer from following defect：1. the acoustic emission probe after cast is not recyclable, cause to monitor Cost is too high；If 2. finding acoustic emission probe no signal or poor signal after cast, it can not be checked or be adjusted, can only be again New acoustic emission probe is drilled and installs, it is too high not only result in monitoring cost, and also results in extension project progress, or even delay Duration；3. injecting cement mortar into drilling, deeper because drilling, the slip casting effect of one side acoustic emission probe installation position is difficult to protect Barrier, it is possible that acoustic emission probe installation position fails the situation of effective slip casting, so as to cause acoustic emission probe not with palisades Efficient coupling and without monitoring signals；On the other hand drilling is deeper, and total contraction distortion amount after the theing cement solidifies of cast is bigger, with water The signal transmission cable for the acoustic emission probe that mud bonds together can bear pulling force because cement shrinkage deforms, and causing can not be effective Transmission signal；4. the explosive in digging process is blown out, slip casting face may be made to be relaxed with rock wall surface, cause what monitoring signals were transmitted Validity reduces；5. generally moister in drilling, cement slurry sets need longer cycle after cast, and the construction time limit can be caused to prolong It is long；And installation process is time-consuming, laborious, it is necessary to a series of professional grouting equipments and slip casting personnel, so as to further increase monitoring into This.

(3) another kind is achieved in that using simple secure mounting arrangements, acoustic emission probe is fixed on inside device, so After fixing device is delivered into installation position with rigid non-movable metallic transmission bar afterwards, acoustic emission probe is ejected with pressure Contacted afterwards with drilling palisades, realize and fix, its advantage is to realize connecing for acoustic emission probe and palisades in the case of non-slip casting cast Touch, but still have the following disadvantages：1. this mode needs because secure mounting arrangements and the distance between borehole wall are close Want secure mounting arrangements to be essentially concentric structure with drilling, and need hole wall smooth, but these requirements are difficult to protect in practice of construction Barrier；2. because secure mounting arrangements size is larger, the drilling being relatively large in diameter is only applicable to, causes the cost rise that drills；It is 3. whole Transmission pole and erecting device are to be inserted into by hardness of exerting oneself in drilling in the borehole, and not only frictional force is big, cable of easily grinding away Or acoustic emission probe, it is also easy to be snapped in drilling, can not deliver to needs position to be mounted；4. due to being by secure mounting arrangements By external force, during its hardness insertion is drilled, therefore installation process not only wastes time and energy, and operating efficiency is extremely low；5. because boring Hole hole wall is cylindrical surface, and acoustic emission probe end face is plane, how to ensure acoustic emission probe end face effectively and borehole wall Coupling, and the problem solved is needed in practical application.

Based on drawback and defect present in above-mentioned various implementations, cause acoustic emission detection in rock (body) stability And by a definite limitation during the application of rock burst dynamic disaster monitoring.

Thus, it is how convenient, effectively by acoustic emission probe installation in the borehole, and have the acoustic emission probe after installation Effect couples with hole wall, is still the difficult point of current field monitoring and research, lacks relevant test method and technical support.

Utility model content

The purpose of this utility model is intended to be directed to deficiency of the prior art, there is provided a kind of acoustic emission monitoring system, its sound Emission sensor is not only easy for installation, and acoustic emission probe can realize efficient coupling with borehole wall, it is ensured that acoustic emission probe The validity of detectable signal, and multiple acoustic emission probe combinations can be realized.

Acoustic emission monitoring system described in the utility model, including acoustic emission sensor and ground handling station, the sound emission Sensor is used to be arranged in the drilling of monitored rock mass, and the monitoring signals received are passed through into cable transmission to ground handling Stand, the computer in ground handling station is handled and shown to the monitoring signals from emission sensor, and its feature exists In the acoustic emission sensor by acoustic emission probe, probe installing mechanism and the installing mechanism transmission that acoustic emission probe will be provided with The transport mechanism composition of setting position, the quantity of acoustic emission probe are at least one in drilling, the quantity for installing mechanism of popping one's head in It is identical with the quantity of acoustic emission probe；The probe installing mechanism includes probe sleeve, end cap, spring spool, spring, guiding group Part and frame shape connector；The probe sleeve is lower end closed, the cylinder of upper end open, and endoporus and the sound emission of probe sleeve are visited Head coordinates for gap, and the lower surface of probe sleeve is the arc surface matched with the drilling radian of monitored rock mass, and upper end barrel is set One or two notch stretched out for the cable connector of acoustic emission probe is equipped with, if two notches, two notches are relative to probe The center line of sleeve is axisymmetricly distributed；The connector that the end cap is set by the first cover plate and the first cover plate top surface is formed, the One cover plate matches with the shape and size of probe sleeve upper surface, and connector is provided with the first mistake passed through for the first position-limitting pin Hole；The spring spool is provided with the second position-limitting pin for the cylinder of both ends open and lower end, and spring spool quantity is two, and two Spring spool is axisymmetricly fixed on probe sleeve outer wall, and the center line of two spring spools relative to the center line of probe sleeve It is vertical in the projection of horizontal plane with the center line of the notch in the line of horizontal plane projection；The guidance set is by the second cover plate Being formed with two guide rods, the second cover plate top surface is the arc surface that is matched with the drilling radian of monitored rock mass, bottom surface is plane, Second cover plate central position is provided with the centre bore matched with cap connections shape and size, and the hole wall of the centre bore is provided with The second via passed through for the first position-limitting pin, two guide rods are axisymmetricly fixed on relative to the center line of the second cover plate Two cover plate bottom surfaces, the spacing between two guide rod center lines are identical with the spacing between two spring spool center lines；It is described The quantity of frame shape connector is one or two, and frame shape connector is connected with the outer wall set by probe sleeve at notch and and notch Communicate；Acoustic emission probe is arranged in probe sleeve, and the notch that its cable connector is set from probe sleeve barrel protrudes into frame Shape connector, the first cover plate of end cap are covered in probe sleeve upper surface and are detachable connection with probe sleeve, the bullet The quantity of spring be two, two springs are respectively charged into two spring spools, its lower end installed by spring spool lower end second Position-limitting pin is spacing, and two guide rods of guidance set are sleeved on two spring assemblies, the second cover plate of guidance set respectively Being connected on end cap and by the first position-limitting pin with end cap makes spring be in compressive state, transport mechanism and frame shape connector or spy Headgear cylinder is hinged.

Above-mentioned acoustic emission monitoring system, the quantity of the probe installing mechanism is identical with acoustic emission probe quantity, Ke Yigen According to being actually needed, multiple acoustic emission probes are arranged along borehole axial in same drilling, the directions of different acoustic emission probes can be with It is configured according to actual monitoring requirement；Two neighboring acoustic emission sensor is attached by transport mechanism.

Above-mentioned acoustic emission monitoring system, for the ease of installing the second position-limitting pin, the spring spool on spring spool Diametrically opposite Position Design has the 3rd via that the second position-limitting pin passes through；Pass through the second limit on spring spool Position pin not only can play the distance moved down to the spring in spring spool, play position-limiting action；When by spring spool On the second position-limitting pin when extracting, spring affranchises retracted position, and its elastic acting force disappears, the cover plate of guidance set second Between probe sleeve and borehole wall no longer be in close contact, particularly when guidance set vertically downward when, guidance set exists Under its own gravity, slide downwards, its guide rod reenters spring spool, facilitates the use transport mechanism by voice sending sensor Device easily takes out.

Above-mentioned acoustic emission monitoring system, acoustic emission sensor can pass through rope through the first position-limitting pin (such as steel Cord) the first position-limitting pin is extracted from the cover plate of guidance set second and cap connections；Equally, acoustic emission sensor also may be used So that the second position-limitting pin to be extracted from spring spool by the rope (such as steel wire rope) through the second position-limitting pin.

Above-mentioned acoustic emission monitoring system, can be in sound emission in order to further improve acoustic emission probe signal transmission effect The end face coating couplant that probe contacts with probe sleeve bottom surface, so that the bottom of acoustic emission probe bottom end face and probe sleeve Effectively contact；The couplant is butter, vaseline etc..

Above-mentioned acoustic emission monitoring system, for the cable form fit being connected with acoustic emission probe, cable is avoided damage to, institute It is U type slot to state the notch stretched out for acoustic emission probe cable connector that probe sleeve upper end barrel is set；The U type slot Width is slightly larger than the diameter of acoustic emission probe cable connector.

Above-mentioned acoustic emission monitoring system, probe installing mechanism is delivered into setting position in drilling for convenience, reduced artificial Abrasion in operation difficulty and transmit process caused by frictional force is excessive to cable or installing mechanism of popping one's head in, the utility model The transport mechanism is combined by transmission bar assembly and roll wheel assembly；The transmission bar assembly includes the first driven rod, second Driven rod and connecting rod, one end of first driven rod are provided with the first articulated joint, and other end centre is provided with first and connected Connect screw, one end of second driven rod is provided with the second articulated joint, other end centre be provided with the first connecting hole and Be provided with the first fastening screw on the hole wall of first connecting hole, the connecting rod by the thread segment that is matched with the first connecting screw hole and The column body segment composition matched with the first connecting hole, the first connecting screw hole screw thread set by the thread segment of connecting rod and the first driven rod connect Connect, the column body segment of connecting rod inserts the first connecting hole set by the second driven rod and fixed by trip bolt；The roll wheel assembly Including roller, U-shaped installing plate, wheel shaft and roller sleeve, the quantity of roller is two or three, the number of U-shaped installing plate and wheel shaft Amount is identical with the quantity of roller, and each roller is separately mounted on corresponding wheel shaft, and the both ends of each wheel shaft are separately mounted to corresponding U On the biside plate of type installing plate, make each roller respectively between the biside plate of corresponding U-shaped installing plate, the endoporus of roller sleeve More than the second fastening screw is designed with the appearance and size of the first driven rod and the second driven rod and hole wall, each U-shaped installing plate divides It is not fixed on the outer wall of roller sleeve, when U-shaped installing plate is two, the angle between two U-shaped installing plate center lines is 120 °~135 °, when U-shaped installing plate is three, the center line of the U-shaped installing plate of two of which is point-blank, remaining next The center line of U-shaped installing plate and the angle of the U-shaped installing plate center line of above-mentioned two are 90 °；The roller housing jacket casing of roll wheel assembly Fixed on the second driven rod of transmission bar assembly and by trip bolt.Above-mentioned transport mechanism, pop one's head in installing mechanism and the It is to be articulated and connected between one driven rod or the second driven rod, can be avoided in installation process because of sound emission installing mechanism and drilling Between the excessive friction of generation, abrasion is produced to sound emission installing mechanism；Further, since the first driven rod and the second driven rod It is to be connected by connecting rod, and between roller sleeve, the second driven rod and connecting rod is connected by trip bolt；Pacifying During assembly and disassembly, this connected mode need not rotate the first driven rod and the second driven rod, on the one hand can avoid because Driven rod rotates and makes to produce friction between probe installing mechanism and drilling, on the other hand can avoid leading because driven rod rotates Cause to wind mutually between more ropes of position-limitting pin connection and produce maloperation.

Above-mentioned acoustic emission monitoring system, can be by the first driven rod in order to which probe installing mechanism is delivered into deeper drilling And/or second driven rod processing length extend, can also increase by the 3rd driven rod in bar assembly is transmitted, so that driven rod group The push length increase of part；One end centre of 3rd driven rod is provided with the second connecting screw hole, other end centre Provided with the second connecting hole, second connecting screw hole matches with the thread segment of connecting rod, second connecting hole and connecting rod Column body segment matches and the 3rd fastening screw is provided with hole wall；The quantity of 3rd driven rod is at least one, positioned at the during use Between one driven rod and the second driven rod, realized by connecting rod and passed with the first driven rod and the combination of the second connecting rod and the 3rd Send the combination that bar is mutual；At least one set of roll wheel assembly is can configure on 3rd driven rod.

The operation principle of acoustic emission monitoring system described in the utility model：The acoustic emission sensor of the acoustic emission monitoring system Second cover plate of guidance set realizes pluggable connection by the first position-limitting pin and end cap, spring is in compressive state, will Acoustic emission probe is locked in probe sleeve, can so meet the cutting perpendicular to borehole axial of the probe installing mechanism after assembling Face area is less than drilling sectional area to be installed, so that the probe installing mechanism for being provided with acoustic emission probe can be in drilling certainly By moving；When the probe installing mechanism for being provided with acoustic emission probe to be delivered to the setting position in drilling using transport mechanism, First position-limitting pin is extracted, under the effect of spring power, guidance set moves with probe sleeve to opposite both direction, So that guidance set and probe sleeve are in close contact with drill hole inner wall respectively, ensure the effective of acoustic emission probe and borehole wall Coupling, meet the condition of work of acoustic emission probe signal monitoring；After monitoring, installed by extracting spring spool lower end the Two position-limitting pins, the active force to spring can be released, so that the second cover plate and/or probe sleeve of guidance set and drilling Hole wall separates, and recycles transport mechanism to receive the probe installing mechanism for being provided with acoustic emission probe from monitored rock body drilled Return, the recovery and reuse of acoustic emission sensor can be achieved.

Compared with prior art, the utility model has the advantages that：

1st, acoustic emission monitoring system described in the utility model, the used probe installing mechanism of acoustic emission sensor, passes through Plug type connection above the cover plate of guidance set second and probe sleeve between end cap coordinates, and solving acoustic emission sensor has Effect installation and the problem of coupling；When the second cover plate of guidance set is connected by the first position-limitting pin with end cap, resilient sleeve Interior spring is in compressive state；After the first position-limitting pin is extracted, make guidance set under the effect of spring restoring force Second cover plate top surface and probe sleeve lower surface are in close contact with borehole wall, so as to ensure acoustic emission sensor and drilling hole The efficient coupling of wall；Acoustic emission sensor by the monitoring signals received by cable transmission to ground handling station, and pass through ground The computer of face work station is shown to monitoring signals.

2nd, acoustic emission monitoring system described in the utility model, the second cover plate top surface and probe used by acoustic emission sensor Sleeve lower surface is the arc coupling surface being adapted to borehole wall, it is ensured that the coupling effect of acoustic emission probe and borehole wall, from And strengthen the monitoring to rock (body) stability and rock burst dynamic disaster and forecast reliability.

3rd, acoustic emission monitoring system described in the utility model, after monitoring, by extracting the installation of spring spool lower end Second position-limitting pin, the active force to spring can be released, make the cover plate of guidance set second and/or probe sleeve and borehole wall Separation, is easy to transport mechanism to withdraw acoustic emission sensor from drilling, so as to realize the reuse of acoustic emission sensor, section About monitoring cost.

4th, acoustic emission monitoring system described in the utility model, because the probe installing mechanism for being provided with acoustic emission probe transmits During size be less than bore size, and the driven rod of transport mechanism can be formed by connecting by more, thus not only easy for installation, Do not influenceed by drilling depth and orientation also, there is the wider scope of application.

5th, acoustic emission monitoring system described in the utility model, because used transport mechanism is designed with live roller, because And the roller transfer in installation process can be realized, overcome the friction effects of borehole wall in installation transmit process, it is ensured that sound is sent out Penetrate the integrality of sensor and transmission cable.

6th, acoustic emission monitoring system described in the utility model, due to passing through hinge between used probe sleeve and driven rod The mode of connecing is connected, and probe sleeve can be made to realize within the specific limits and rotated by a small margin, so as to be further ensured that guidance set Two cover plate top surfaces and probe sleeve lower surface contact with borehole wall efficient coupling respectively.

7th, acoustic emission monitoring system described in the utility model, there is the characteristics of simple in construction, installation, convenient disassembly, thus Labor intensity can be reduced, saves a large amount of human costs.

8th, acoustic emission monitoring system described in the utility model, in order to meet different demands, multiple transfer assemblies can be passed through Multiple probe installing mechanisms are connected to the purpose for arranging multiple acoustic emission probes in same drilling with realization, made each Acoustic emission probe end face direction can determine respectively according to monitoring needs, so as to improve to rock (body) stability and rock burst power calamity Harmful monitoring efficiency.

Brief description of the drawings

Fig. 1 is the structural representation that acoustic emission monitoring system described in the utility model includes two acoustic emission probes.

Fig. 2 is the structural representation of probe installing mechanism in acoustic emission monitoring system described in the utility model.

Fig. 3 is Fig. 2 A-A sectional views.

Fig. 4 is the knot of probe sleeve, spring spool and frame shape connector in acoustic emission monitoring system described in the utility model Structure schematic diagram.

Fig. 5 is the front view of end cap in acoustic emission monitoring system described in the utility model.

Fig. 6 is Fig. 5 upward view.

Fig. 7 is the structural representation of guidance set in acoustic emission monitoring system described in the utility model.

Fig. 8 is the structural representation of position-limitting pin in acoustic emission monitoring system described in the utility model.

Fig. 9 is the structural representation of acoustic emission probe in acoustic emission monitoring system described in the utility model.

Figure 10 is Fig. 9 top view.

Figure 11 is the structural representation of the first driven rod in acoustic emission monitoring system described in the utility model.

Figure 12 is the structural representation of the second driven rod in acoustic emission monitoring system described in the utility model.

Figure 13 is the structural representation of connecting rod in acoustic emission monitoring system described in the utility model.

Figure 14 is the structural representation of the 3rd driven rod in acoustic emission monitoring system described in the utility model.

Figure 15 is the structural representation of roll wheel assembly in acoustic emission monitoring system described in the utility model.

Figure 16 is the probe installing mechanism that acoustic emission probe is provided with the utility model in state diagram when installing.

Figure 17 is the probe installing mechanism that acoustic emission probe is provided with the utility model in state diagram when monitoring.

Figure 18 is the probe installing mechanism that acoustic emission probe is provided with the utility model in state diagram when reclaiming.

Figure 19 is the structural representation that acoustic emission monitoring system described in the utility model includes three acoustic emission probes.

In figure：1 probe installing mechanism, 1-1 probe sleeves, 1-1-1 notches, 1-2 end caps, the cover plates of 1-2-1 first, 1-2-2 Connector, the vias of 1-2-3 first, 1-2-4 screwed holes, 1-3 spring spools, the vias of 1-3-1 the 3rd, 1-4 springs, 1-5 guiding groups Part, the cover plates of 1-5-1 second, 1-5-2 guide rods, the vias of 1-5-3 second, the position-limitting pins of 1-6 first, the vias of 1-6-1 the 4th, 1-7 Frame shape connector, the articulated joints of 1-7-1 the 3rd, the position-limitting pins of 1-8 second, the vias of 1-8-1 the 5th, 2 acoustic emission probes, 2-1 lines Cable joint, 3 transport mechanisms, 3-1 transmission bar assemblies, the driven rods of 3-1-1 first, the connecting screw holes of 3-1-1-1 first, 3-1-1-2 the One articulated joint, the driven rods of 3-1-2 second, the connecting holes of 3-1-2-1 first, the articulated joints of 3-1-2-2 second, 3-1-2-3 first Fasten screw, 3-1-3, connecting rod, 3-1-3-1 thread segments, 3-1-3-2 column body segments, the driven rods of 3-1-4 the 3rd, 3-1-4-1 second Connecting screw hole, the connecting holes of 3-1-4-2 second, 3-1-4-3 the 3rd fasten screw, 3-2 roll wheel assemblies, 3-2-1 rollers, 3-2-2U types Installing plate, 3-2-3 wheel shafts, 3-2-4 roller sleeves, 3-2-4-1 second fasten screw, 4 ground handling stations, 4-1 computers, 5 lines Cable, 6 drillings, 7 rock mass.

Embodiment

Carry out by the following examples and with reference to accompanying drawing to the technical scheme of acoustic emission monitoring system described in the utility model Clear, complete description, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the premise of creative work Lower resulting all other embodiment, belongs to the scope that the utility model is protected.

Embodiment 1

Acoustic emission monitoring system that the present embodiment provides as shown in figure 1, including acoustic emission sensor and ground handling station 4, Acoustic emission sensor is used to be arranged in the drilling 6 of monitored rock mass 7, by the monitoring signals received by cable 5 transmit to Ground handling station 4, the computer 4-1 in ground handling station are handled and shown to the monitoring signals from emission sensor Show；Acoustic emission sensor transmits by acoustic emission probe 2, probe installing mechanism and by the installing mechanism for being provided with acoustic emission probe The transport mechanism 3 of setting position forms in drilling；The quantity of probe installing mechanism 1 and acoustic emission probe 2 is two.

As shown in Figure 9, Figure 10, above-mentioned acoustic emission probe 2 is cylindrical structural, and extend sideways out cable connector 2-1, sound hair Penetrate 2 end faces of probe and be coated with butter.

As shown in Figure 2 and Figure 3, above-mentioned probe installing mechanism 1 includes probe sleeve 1-1, end cap 1-2, spring spool 1-3, bullet Spring 1-4, guidance set 1-5 and frame shape connector 1-7；Spring 1-4 quantity is two.

As shown in Figure 2, Figure 3, Figure 4, above-mentioned probe sleeve 1-1 be lower end closed, the cylinder of upper end open, probe sleeve Endoporus coordinates with acoustic emission probe 2 for gap, and probe sleeve 1-1 lower surface is what is matched with the drilling radian of monitored rock mass Arc surface, upper end barrel are provided with two U type slot 1-1-1 of the cable connector stretching for acoustic emission probe, two U type slots 1-1-1 is axisymmetricly distributed relative to probe sleeve 1-1 center line, and U type slot 1-1-1 width is more than and acoustic emission probe The cable diameter of 2 connections.

As shown in Figure 5, Figure 6, above-mentioned end cap 1-2 welds connected connection by the first cover plate 1-2-1 and the first cover plate top surface Part 1-2-2 is formed；First cover plate 1-2-1 is square, and it matches with probe sleeve 1-1 upper surfaces shape and size, four Screwed hole 1-2-4 is provided with angle；Connector 1-2-2 is provided with the first via 1-2-3 passed through for the first position-limitting pin 1-6.

As shown in Figure 2, Figure 3, Figure 4, above-mentioned spring spool 1-3 is the cylinder of both ends open and lower end is provided with through thereon 3rd via 1-3-1 the second position-limitting pin 1-8, spring spool 1-3 quantity are two, and two spring spools are relative to probe sleeve Center line axisymmetricly weld and be connected in probe sleeve outer wall, and the line that the center line of two spring spools projects in horizontal plane Vertical in the projection of horizontal plane with the center line of the U type slot 1-1-1, two spring spool lower ends are disposed radially the second latch Hole 1-3-1.

As shown in Fig. 2, Fig. 3 and Fig. 7, above-mentioned guidance set 1-5 is by the second cover plate 1-5-1 and two guide rod 1-5-2 structures Into, the second cover plate 1-5-1 top surfaces be the arc surface that is matched with the drilling radian of monitored rock mass, bottom surface be plane, the second cover plate 1-5-1 centres are provided with the centre bore matched with cap connections 1-2-2 shape and size, and the hole wall of the centre bore is set There is the second via 1-5-3 passed through for the first position-limitting pin 1-6, two guide rod 1-5-2 are relative in the second cover plate 1-5-1 Heart line is axisymmetricly weldingly fixed on the second cover plate bottom surface, the spacing between two guide rod center lines and two spring spool 1- Spacing between 3 center lines is identical.

As shown in figure 4, above-mentioned frame shape connector 1-7 quantity is two, frame shape connector 1-7 and U set by probe sleeve Outer wall welding at type groove mouth 1-1-1 is connected, and is communicated with U type slot 1-1-1, so as to which cable connector is covered, avoid its with Frequently contacted between borehole wall and produce abrasion；It is be hinged that the with through hole the 3rd is provided with the outside of the frame shape connector 1-7 Joint 1-7-1.

Above-mentioned first position-limitting pin 1-6 and the second position-limitting pin are to have through the 4th via 1-6-1, the 5th via 1-8- 1, the steel wire rope that control position-limitting pin is extracted.

The assembling mode of above-mentioned probe installing mechanism 1 and acoustic emission probe 2 is：Acoustic emission probe 2 is arranged on probe sleeve In 1-1, it scribbles one end of butter and contacted with the bottom of probe sleeve, and its cable connector 2-1 is set from probe sleeve barrel Notch 1-1-1 protrudes into frame shape connector 1-7, and the first cover plate 1-2-1 of end cap is covered in probe sleeve 1-1 upper surfaces and passed through Screw realization through end cap screwed hole 1-2-4 is connected, and two spring 1-4 are respectively charged into two spring spool 1-3, its lower end Spacing by the second position-limitting pin 1-8, two guide rod 1-5-2 of guidance set combine with two spring 1-4 respectively, by two bands 5th via 1-8-1 pin 1-8 insertion spring spool 1-3, and the guide rod 1-5-2 for being socketed with spring 1-4 is penetrated into spring In sleeve 1-3, the second cover plate 1-5-1 of guidance set is sleeved on end cap 1-2 and by first with the 4th via 1-6-1 Position-limitting pin 1-6 is connected with end cap 1-2 makes spring 1-4 be in compressive state；Now, acoustic emission probe 2 is fixed on probe sheath In cylinder 1-1, the probe installing mechanism 1 after assembling is less than 6 sectional areas of drilling perpendicular to the sectional area of borehole axial.

As shown in Fig. 1, Figure 11 to Figure 15, above-mentioned transport mechanism 3 combined by transmission bar assembly 3-1 and roll wheel assembly 3-2 and Into；Transmission bar assembly 3-1 includes the first driven rod 3-1-1, the second driven rod 3-1-2, the 3rd driven rod 3-1-4 and connecting rod 3- 1-3；First driven rod 3-1-1 one end is provided with the first articulated joint 3-1-1-2, and other end centre is provided with the first connection spiral shell Hole 3-1-1-1；Second driven rod 3-1-2 one end is provided with the second articulated joint 3-1-2-2, and other end centre is provided with The first fastening screw 3-1-2-3 is provided with one connecting hole 3-1-2-1 and the hole wall of the first connecting hole；3rd driven rod 3-1-4 One end centre be provided with the second connecting screw hole 3-1-4-1, other end centre is provided with the second connecting hole 3-1-4-2 and the The 3rd fastening screw 3-1-4-3 is provided with the hole wall of one connecting hole；Connecting rod 3-1-3 with the first connecting screw hole and second by connecting The hexagonal cylindricality column body segment 3-1- for meeting the thread segment 3-1-3-1 of screw matching and being matched with the first connecting hole and the second connecting hole 3-2 is formed, the first connecting screw hole 3-1-1-1 or the 3rd driven rod set by the thread segment 3-1-3-1 and the first driven rod of connecting rod Set second connecting screw hole 3-1-4-1 threaded connections, the column body segment 3-1-3-2 of connecting rod insert the first company set by the second driven rod Meet the second connecting hole 3-1-4-1 set by hole 3-1-2-1 or the 3rd driven rod and fixed by trip bolt；Roll wheel assembly 3-2 bags The quantity for including roller 3-2-1, U-shaped installing plate 3-2-2, wheel shaft 3-2-3 and roller sleeve 3-2-4, roller 3-2-1 is three, U-shaped Installing plate 3-2-2 and wheel shaft 3-2-3 quantity are identical with the quantity of roller, and each roller 3-2-1 is separately mounted to corresponding wheel shaft On, each wheel shaft 3-2-3 both ends are separately mounted on corresponding U-shaped installing plate 3-2-2 biside plate, each roller is located at respectively Between the biside plate of corresponding U-shaped installing plate, roller sleeve 3-2-4 endoporus is more than the transmission of the first driven rod 3-1-1 and second The second fastening screw 3-2-4-1 is designed with bar 3-1-2 appearance and size and hole wall, each U-shaped installing plate, which is respectively welded, to be fixed on On roller sleeve 3-2-4 outer wall, U-shaped installing plate be three, the center line of the U-shaped installing plate of two of which point-blank, The center line of remaining next U-shaped installing plate and the angle of the U-shaped installing plate center line of above-mentioned two are 90 °；Roll wheel assembly 3-2's Roller sleeve 3-2-4 is sleeved on transmission bar assembly 3-1 the second driven rod 3-1-2 or the 3rd driven rod 3-1-4 and by tight Gu screw is fixed.

As shown in figure 1, the assembling process for the acoustic emission sensor that the present embodiment provides is：First by the first driven rod 3-1-1, The 3rd driven rod 3-1-4 for being set with roll wheel assembly 3-2 and the second driven rod 3-1-2 for being set with roll wheel assembly sequentially pass through two Individual connecting rod 3-1-3 links together, by the on the first fastening screw 3-1-2-3 and the 3rd driven rod on the second driven rod Three fastening screw 3-1-4-3 align with the second fastening screw 3-2-4-1 on two roller sleeves respectively, will using trip bolt Roll wheel assembly, the second driven rod, connecting rod or roll wheel assembly, the 3rd driven rod, connecting rod are fixed, and complete two probe installations Transfer member installation between mechanism；First the first articulated joint of driven rod 3-1- of the transfer member that above-mentioned completion is installed again 1-2 and second the second articulated joint of driven rod 3-1-2-2 respectively with two probe for being provided with acoustic emission probe 2 installing mechanisms 1 The adapted pin-hinges of articulated joint 1-7-1 of frame shape connector the 3rd together, close to drilling 6 outside probe installing mechanism Another frame shape connector on the 3rd articulated joint 1-7-1 and another the second articulated joint of second driven rod 3-1-2-2 it is adapted Pin-hinges together, complete the assembling of acoustic emission sensor.

As shown in Fig. 1, Figure 16 to Figure 18, the use process for the acoustic emission monitoring system that the present embodiment provides is：Will peace Probe installing mechanism 1 equipped with acoustic emission probe 2 is put into by transport mechanism 3 in the drilling 6 of monitored rock mass 7, promotes transmission Mechanism 3, the position for needing to monitor is passed to, then extracts the first position-limitting pin 1-6, under spring 1-4 resilient force, Guidance set 1-5 and probe sleeve 1-1 are moved in the opposite direction, so that the second cover plate 1-5-1 top surface and probe sleeve 1-1 lower surface is in close contact with borehole wall respectively；The cable 4 being connected with acoustic emission probe 2 extends to earth's surface, and and ground The computer 4-1 of work station 4 is connected；Acoustic emission probe 2 transmits the monitoring signals received to ground handling station 4 through cable 5 Computer 4-1, and by computer 4-1 to monitoring signals carry out real-time display.Top surface and spy due to the second cover plate 1-5-1 Headgear cylinder 1-1 lower surface is the arc surface being adapted to drilling hole wall-shaped face, thereby may be ensured that sensor and borehole wall Effective contact, it is ensured that acoustic emission probe receive signal validity and stability.

After monitoring process terminates, the second position-limitting pin 1-8 on spring spool 1-3 is extracted, spring 1-4 is returned to certainly By state, guidance set 1-5 is separated with the wall of a borehole and is entered spring spool 1-3 under gravity, now, installing mechanism of popping one's head in Along 6 areas of section of drilling are less than again perpendicular to borehole axial area of section, therefore, it is possible to will be popped one's head in by transmitting bar assembly 3-1 Installing mechanism 1 pulls out from drilling 6 so that acoustic emission probe 2 and its installing mechanism can be recycled.

Embodiment 2

The acoustic emission monitoring system that the present embodiment provides, as shown in figure 19, including acoustic emission sensor and ground handling station 4, acoustic emission sensor is used to be arranged in the drilling 6 of monitored rock mass 7, and the monitoring signals received are transmitted by cable 5 To ground handling station 4, the computer 4-1 in ground handling station is handled and given to the monitoring signals from emission sensor Display；Acoustic emission sensor passes by acoustic emission probe 2, probe installing mechanism and by the installing mechanism for being provided with acoustic emission probe The transport mechanism 3 for delivering to setting position in drilling forms；The quantity of probe installing mechanism 1 and acoustic emission probe 2 is three.

The probe installing mechanism 1 and the structure of acoustic emission probe 2 that the present embodiment provides are same as Example 1.

As shown in Fig. 1, Figure 11 to Figure 15, the above-mentioned transport mechanism 3 of transport mechanism 3 is by transmission bar assembly 3-1 and roll wheel assembly 3-2 is combined；Transmission bar assembly 3-1 includes the first driven rod 3-1-1, the second driven rod 3-1-2 and connecting rod 3-1-3；The One driven rod 3-1-1 one end is provided with the first articulated joint 3-1-1-2, and other end centre is provided with the first connecting screw hole 3-1- 1-1；Second driven rod 3-1-2 one end is provided with the second articulated joint 3-1-2-2, and other end centre is provided with the first connection The first fastening screw 3-1-2-3 is provided with the hole wall of hole 3-1-2-1 and the first connecting hole；Connecting rod 3-1-3 with first by connecting The hexagonal cylindricality column body segment 3-1-3-2 compositions for meeting the thread segment 3-1-3-1 of screw matching and being matched with the first connecting hole, connecting rod Thread segment 3-1-3-1 be threadedly coupled with the first connecting screw hole 3-1-1-1 set by the first driven rod, the column body segment 3-1- of connecting rod 3-2 inserts the first connecting hole 3-1-2-1 set by the second driven rod and fixed by trip bolt；Roll wheel assembly 3-2 includes roller 3-2-1, U-shaped installing plate 3-2-2, wheel shaft 3-2-3 and roller sleeve 3-2-4, roller 3-2-1 quantity are three, U-shaped installing plate 3-2-2 and wheel shaft 3-2-3 quantity are identical with the quantity of roller, and each roller 3-2-1 is separately mounted on corresponding wheel shaft, each wheel Axle 3-2-3 both ends are separately mounted on corresponding U-shaped installing plate 3-2-2 biside plate, each roller is located at corresponding U respectively Between the biside plate of type installing plate, roller sleeve 3-2-4 endoporus is more than the first driven rod 3-1-1 and the second driven rod 3-1-2 Appearance and size and hole wall on be designed with the second fastening screw 3-2-4-1, each U-shaped installing plate, which is respectively welded, is fixed on roller sleeve On 3-2-4 outer wall, U-shaped installing plate be three, the center line of the U-shaped installing plate of two of which point-blank, remaining next U The center line of type installing plate and the angle of the U-shaped installing plate center line of above-mentioned two are 90 °；Roll wheel assembly 3-2 roller sleeve 3-2-4 is sleeved on transmission bar assembly 3-1 the second driven rod 3-1-2 and fixed by trip bolt.

As shown in figure 19, the assembling for the acoustic emission sensor that the present embodiment provides：By the first driven rod 3-1-1 and it is set with Roll wheel assembly 3-2 the second driven rod 3-1-2 is linked together by a connecting rod 3-1-3, by the second driven rod One fastening screw 3-1-2-3 fastens screw 3-2-4-1 with second on roller sleeve and alignd, using trip bolt by roller group Part, the second driven rod, connecting rod three fix, and complete the transfer member installation between two neighboring probe installing mechanism, foundation Above-mentioned similar approach, two sets of transfer members are assembled altogether；The transfer member of above-mentioned completion installation is recycled using identical in embodiment 1 Mode three probe for being provided with acoustic emission probe installing mechanisms are connected in turn, close to drilling 6 outside probe 3rd articulated joint 1-7-1 and another the second articulated joint of second driven rod 3-1-2- on another frame shape connector of installing mechanism 2 adapted pin-hinges together, complete the assembling of acoustic emission sensor.

The use for the above-mentioned acoustic emission monitoring system that the present embodiment provides and removal process are same as Example 1.

The transport mechanism 3 with roll wheel assembly 3-2 and connecting rod 3-1-3 is carried out in above-described embodiment 1, embodiment 2 During dismounting, it is only necessary to unscrew the trip bolt on roller sleeve 3-2-4, you can realize the second driven rod 3-1-2 or 3rd driven rod 3-1-4 and roll wheel assembly 3-2 and connecting rod 3-1-3 separation, not only convenient disassembly, and avoid conveyer The integral-rotation of structure 3, excessive friction is produced between installing mechanism and drilling so as to avoid popping one's head in, while can also avoided because of transmission Mechanism integral-rotation and wind mutually between more ropes causing to be connected with position-limitting pin and produce maloperation.

In above-described embodiment 1, embodiment 2, as 6 relatively deep, the first driven rod 3-1-1 and/or the second driven rod 3-1-2 that drill Not enough in use, the 3rd driven rod being connected respectively with the first driven rod 3-1-1 and/or the second driven rod 3-1-2 can be configured 3-1-4；Connected between first driven rod 3-1-1, the second driven rod 3-1-2 and the 3rd driven rod 3-1-4 by connecting rod 3-1-3 Connect.

, can be according to brill close to the other end of the probe installing mechanism in the outside of drilling 6 in above-described embodiment 1, embodiment 2 The depth in hole, it is reconfigured at being made up of the first driven rod 3-1-1 and/or the second driven rod 3-1-2 and/or the 3rd driven rod 3-1-4 Transmission bar assembly 3-1 and roll wheel assembly 3-2, to control entrance depth of the acoustic emission sensor in drilling.

Welding attachment in above-described embodiment 1, embodiment 2, it can also be solidified by bolt attachment, integral type Other attachments such as shaping substitute；Screw attachment, it can also be removably fixed with by the way that buckle, magnetic coupling etc. are other Mode substitutes.

Claims (6)

1. a kind of acoustic emission monitoring system, including acoustic emission sensor and ground handling station (4), the acoustic emission sensor are used for In the drilling of monitored rock mass, the monitoring signals received are transmitted to ground handling station, ground work by cable (5) Computer (4-1) in standing is handled and shown to the monitoring signals from emission sensor, it is characterised in that institute Acoustic emission sensor is stated by acoustic emission probe (2), probe installing mechanism (1) and the probe fitting machine that acoustic emission probe will be provided with Structure is sent to transport mechanism (3) composition of setting position in drilling, and the quantity of acoustic emission probe (2) is at least one, probe peace The quantity of mounting mechanism (1) is identical with the quantity of acoustic emission probe；

The probe installing mechanism (1) includes probe sleeve (1-1), end cap (1-2), spring spool (1-3), spring (1-4), led To component (1-5) and frame shape connector (1-7)；The probe sleeve (1-1) is lower end closed, the cylinder of upper end open, is popped one's head in The endoporus of sleeve coordinates with acoustic emission probe (2) for gap, and the lower surface of probe sleeve is the drilling radian with monitored rock mass The arc surface of matching, upper end barrel are provided with one or two notch (1-1-1) of the cable connector stretching for acoustic emission probe, If two notches, two notches are axisymmetricly distributed relative to the center line of probe sleeve；The end cap (1-2) is by the first cover plate The connector (1-2-2) that (1-2-1) and the first cover plate top surface are set is formed, on the first cover plate (1-2-1) and probe sleeve (1-1) The shape and size matching of end face, connector (1-2-2) are provided with the first via (1- passed through for the first position-limitting pin (1-6) 2-3)；The spring spool (1-3) is provided with the second position-limitting pin (1-8), spring spool for the cylinder of both ends open and lower end (1-3) quantity is two, and two spring spools are axisymmetricly fixed on probe sleeve outer wall relative to the center line of probe sleeve, and The center line of line and the notch (1-1-1) that the center line of two spring spools projects in horizontal plane hangs down in the projection of horizontal plane Directly；The guidance set (1-5) is made up of the second cover plate (1-5-1) and two guide rods (1-5-2), the second cover plate (1-5-1) Top surface is the arc surface that is matched with the drilling radian of monitored rock mass, bottom surface is plane, and the second cover plate (1-5-1) centre is set It is equipped with the centre bore matched with cap connections (1-2-2) shape and size, the hole wall of the centre bore is provided with spacing for first The second via (1-5-3) that pin (1-6) passes through, two guide rods are axisymmetricly fixed on relative to the center line of the second cover plate Second cover plate bottom surface, the spacing phase between spacing and two spring spool (1-3) center lines between two guide rod center lines Together；The quantity of the frame shape connector (1-7) is one or two, frame shape connector and notch (1-1-1) set by probe sleeve The outer wall at place is connected and communicated with notch；

Acoustic emission probe (2) is arranged in probe sleeve (1-1), the groove that its cable connector (2-1) is set from probe sleeve barrel Mouth (1-1-1) protrudes into frame shape connector (1-7), and the first cover plate (1-2-1) of end cap is covered in probe sleeve (1-1) upper end Face and be detachable connection with probe sleeve, the quantity of the spring (1-4) is two, and two springs (1-4) are respectively charged into In two spring spools (1-3), its lower end is spacing by the second position-limitting pin (1-8) installed, two guide rods of guidance set (1-5-2) combines with two springs (1-4) respectively, and the second cover plate (1-5-1) of guidance set is sleeved on end cap (1-2) and led to Crossing the first position-limitting pin (1-6) and being connected with end cap (1-2) makes spring (1-4) be in compressive state, and transport mechanism (3) connects with frame shape Junctor (1-7) or probe sleeve (1-1) are hinged, and first position-limitting pin (1-6) and the second position-limitting pin (1-8) are respectively connected with Rope.

2. acoustic emission monitoring system according to claim 1, it is characterised in that the transport mechanism (3) is by transmission bar assembly (3-1) and roll wheel assembly (3-2) combine；

The transmission bar assembly (3-1) includes the first driven rod (3-1-1), the second driven rod (3-1-2) and connecting rod (3-1- 3), one end of first driven rod (3-1-1) is provided with the first articulated joint (3-1-1-2), and other end centre is provided with the One connecting screw hole (3-1-1-1), one end of second driven rod (3-1-2) is provided with the second articulated joint (3-1-2-2), another End centre, which is provided with the first connecting hole (3-1-2-1) and the hole wall of the first connecting hole, is provided with the first fastening screw (3- 1-2-3), the connecting rod (3-1-3) by the thread segment (3-1-3-1) that is matched with the first connecting screw hole and with the first connecting hole Column body segment (3-1-3-2) composition matched somebody with somebody, the thread segment (3-1-3-1) of connecting rod and the first connecting screw hole set by the first driven rod (3-1-1-1) is threadedly coupled, and the column body segment (3-1-3-2) of connecting rod inserts the first connecting hole (3-1-2- set by the second driven rod 1) and by trip bolt fix；

The roll wheel assembly (3-2) includes roller (3-2-1), U-shaped installing plate (3-2-2), wheel shaft (3-2-3) and roller sleeve (3-2-4), the quantity of roller (3-2-1) is two or three, quantity and the rolling of U-shaped installing plate (3-2-2) and wheel shaft (3-2-3) The quantity of wheel is identical, and each roller (3-2-1) is separately mounted on corresponding wheel shaft, and the both ends of each wheel shaft (3-2-3) are installed respectively On the biside plate of corresponding U-shaped installing plate (3-2-2), make each roller respectively positioned at corresponding U-shaped installing plate biside plate it Between, the endoporus of roller sleeve (3-2-4) be more than the appearance and size of the first driven rod (3-1-1) and the second driven rod (3-1-2) and The second fastening screw (3-2-4-1) is designed with hole wall, each U-shaped installing plate is respectively fixedly connected in roller sleeve (3-2-4) outer wall On, when U-shaped installing plate is two, the angle between two U-shaped installing plate center lines is 120 °~135 °, when U-shaped installing plate For three when, the center line of the U-shaped installing plate of two of which point-blank, the center line of remaining next U-shaped installing plate with it is upper The angle for stating two U-shaped installing plate center lines is 90 °；

The roller sleeve (3-2-4) of roll wheel assembly (3-2) is sleeved on the second driven rod (3-1-2) of transmission bar assembly (3-1) And fixed by trip bolt.

3. acoustic emission monitoring system according to claim 2, it is characterised in that the transport mechanism (3) also includes the 3rd transmission Bar (3-1-4), one end centre of the 3rd driven rod are provided with the second connecting screw hole (3-1-4-1), and other end centre is set There is the second connecting hole (3-1-4-2), second connecting screw hole (3-1-4-1) matches with the thread segment (3-1-3-1) of connecting rod, Second connecting hole (3-1-4-2) matches with the column body segment (3-1-3-2) of connecting rod and the 3rd fastening spiral shell is provided with hole wall Hole (3-1-4-3)；

The quantity of 3rd driven rod (3-1-4) is at least one, during use between the first driven rod and the second driven rod, leads to Cross connecting rod and realize the combination mutual with the first driven rod and the combination of the second connecting rod and the 3rd driven rod, the 3rd transmission At least one set of roll wheel assembly is can configure on bar.

4. the acoustic emission monitoring system according to any claim in claims 1 to 3, it is characterised in that the probe sleeve The notch (1-1-1) stretched out for acoustic emission probe cable connector that upper end barrel is set is U type slot.

5. the acoustic emission monitoring system according to any claim in claims 1 to 3, it is characterised in that the sound emission is visited The lower surface that head (2) contacts with probe sleeve bottom is coated with couplant.

6. acoustic emission monitoring system according to claim 4, it is characterised in that the acoustic emission probe (2) and probe sleeve bottom The lower surface of portion's contact is coated with couplant.