CN207232398U - Coupling pressure rock rupture acoustic monitoring system - Google Patents

Abstract

The utility model discloses a kind of coupling pressure rock rupture acoustic monitoring system, including the acoustic emission sensor being installed in the drilling of monitored rock mass and ground handling station, acoustic emission sensor is made of acoustic emission probe, the probe installing mechanism for installing acoustic emission probe and the transport mechanism for transmitting probe installing mechanism, and probe installing mechanism includes housing, the probe sleeve being installed in housing, is fixed on the end cap of probe sleeve upper surface and is arranged at the piston-cylinder assemblies at the top of inner walls between end cap.The utility model passes through piston-cylinder assemblies and hydraulic pump, realize the control to housing and the probe sleeve direction of motion, so as to solve the problem that acoustic emission probe is effectively installed and coupled, ensure the efficient coupling of acoustic emission probe and borehole wall, strengthen the monitoring to engineering rock (body) stability and rock burst dynamic disaster and forecast reliability.

Description

Coupling pressure rock rupture acoustic monitoring system

Technical field

The utility model belongs to rock (body) project security monitoring technical field in engineering construction, is related to a kind of pressure coupling Close rock rupture acoustic monitoring system.

Background technology

Rock (body) deformation failure in engineering construction, particularly rock burst dynamic disaster, 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 the failure and deformation of surrounding rocks being likely to occur and dynamic disaster into Row Accurate Prediction, acoustic emission sensor need to be arranged in the form of three-dimensional spatial distribution in advance before engineering excavation monitored Country rock region, and the number of sensors arranged is more, and monitoring effect is relatively more accurate.

In specific implementation, it is necessary to before rock (body) excavation, drilled using drilling machine 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 residual liquid medium in drilling (such as Water) medium as signal transmission 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 are following drawback for 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, thus 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；2. although the liquid between rock mass and acoustic emission probe can be as the couplant of signal transmission, 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 excessive；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 excessive 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 that 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 cannot be effective Transmission signal；4. the explosive in digging process is blown out, slip casting face may be made to relax with rock wall surface, cause what monitoring signals were transmitted Validity reduces；5. usually 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 specialty grouting equipments and slip casting personnel, thus 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 Fixing device is sent to installation position with rigid non-movable metallic transmission bar afterwards, is ejected acoustic emission probe 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 since secure mounting arrangements and the distance between borehole wall are close, needs 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. since 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 send to need position to be mounted；4. due to being by secure mounting arrangements By external force, during its hardness insertion is drilled, therefore installation process is not only time-consuming and laborious, but also work 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 it is subject to 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 is coupled with hole wall, is still the difficult point of current field monitoring and research, is lacked 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 coupling pressure rock rupture acoustics Monitoring system, it is not only easy for installation, but also be easy to make acoustic emission probe realize efficient coupling with borehole wall, it is ensured that sound emission is visited The validity of head detectable signal.

Coupling pressure rock rupture acoustic monitoring system described in the utility model, including acoustic emission sensor and ground handling Stand, the acoustic emission sensor is used to be installed in the drilling of monitored rock mass, and the monitoring signals received are passed by cable Transport to ground handling station, the computer in ground handling station is handled and given to the monitoring signals from acoustic emission sensor It has been shown that, the acoustic emission sensor are installed by acoustic emission probe, probe installing mechanism and by the probe for being provided with acoustic emission probe Mechanism is sent to the transport mechanism composition of setting position in drilling, and the quantity of acoustic emission probe is at least one, fitting machine of popping one's head in The quantity of structure is identical with the quantity of acoustic emission probe, and ground handling station further includes hydraulic pump and fuel tank；The probe installing mechanism Including housing, probe sleeve, end cap, piston-cylinder assemblies and connection component；The housing be both ends open cylinder, housing Endoporus in be provided with guide cylinder for being combined with probe sleeve, the guide cylinder is located at the bottom of inner walls and endoporus is Through the through hole of housing wall, center line of its center line perpendicular to housing；The probe sleeve is lower end closed, upper end opening Cylinder, the endoporus of probe sleeve and the endoporus that acoustic emission probe is clearance fit, shape and guide cylinder are clearance fit, probe sheath The lower face of cylinder is the matched arc surface of drilling radian with monitored rock mass, and barrel upper end is provided with the line for acoustic emission probe One or two notch that cable joint stretches out, for the notch if two, two notches are in axis relative to the center line of probe sleeve It is symmetrical；The piston-cylinder assemblies include piston, piston rod and the oil cylinder being arranged at the top of inner walls, the center of oil cylinder The center line of line and guide cylinder is point-blank；The connection component is two sets, is separately mounted to the both ends of housing；Sound emission Probe is installed in probe sleeve, and the notch that its cable connector is set from probe sleeve barrel stretches out；End cap is covered in probe sheath Cylinder upper surface and be detachable connection with probe sleeve；The probe sleeve for being provided with acoustic emission probe is placed in housing, its Lower section is inserted into guide cylinder set by housing and its lower end is located at outside housing, and the placement orientation of probe sleeve should make acoustic emission probe Cable connector towards one end of housing；Piston is installed in oil cylinder, and one end of piston rod and piston are affixed, the other end and end cap The centre of top surface is connected, and the oil inlet of oil cylinder is connected by petroleum pipeline with hydraulic pump, and the oil return opening of oil cylinder passes through petroleum pipeline Connected with fuel tank；Transport mechanism is connected with the connection component on housing.

Above-mentioned coupling pressure rock rupture acoustic monitoring system, connects and is set on the petroleum pipeline of oil cylinder oil inlet mouth and hydraulic pump There is hydralic pressure gauge, in order to monitor the pressure in oil cylinder.

Above-mentioned coupling pressure rock rupture acoustic monitoring system, can pass through at the top of the oil cylinder in acoustic emission sensor Welding manner or thread connecting mode can also be integrated with being connected at the top of inner walls with housing.

Above-mentioned coupling pressure rock rupture acoustic monitoring system, connection component two secondary connecting bracket group by nut and at least Be uniformly distributed around nut outer wall into one end of, each connecting bracket and be hinged with nut outer wall, the other end of each connecting bracket with Housing is connected；This connection component can be such that installing mechanism realizes within the specific limits to rotate by a small margin, so as to be further ensured that Case top and probe sleeve bottom are contacted with borehole wall efficient coupling.

Above-mentioned coupling pressure rock rupture acoustic monitoring system, for the ease of the installing mechanism of acoustic emission probe will be provided with It is sent into the setting position of drilling to be installed, reduces in manual operation difficulty and transmit process caused by frictional force is excessive to line The abrasion of cable or installing mechanism of popping one's head in, the transport mechanism are composed of driven rod, connecting rod and roll wheel assembly；The transmission One end centre of bar is equipped with connecting screw hole, and other end centre, which is equipped with connecting hole and the hole wall of connecting hole, is provided with the One trip bolt, the internal thread type and size and the internal thread type and ruler of nut in the connection component of the connecting screw hole It is very little identical；The connecting rod is made of thread segment and column body segment, connection and transmission for driven rod and the connection component Connection between bar, the external screw thread type and size and the internal thread type and ruler of connecting screw hole set by driven rod of the thread segment Very little matching, the shape and size of the column body segment are matched with the shape and size of connecting hole set by driven rod, when the column of connecting rod Fixed after the connecting hole of body section insertion driven rod by the first trip bolt；The roll wheel assembly include roller, U-shaped installing plate, Wheel shaft and roller sleeve, the quantity of roller is two or three, and the quantity of U-shaped installing plate and wheel shaft is identical with the quantity of roller, Each roller is separately mounted on corresponding wheel shaft, and the both ends of each wheel shaft are separately mounted on the biside plate of corresponding U-shaped installing plate, Make each roller respectively between the biside plate of corresponding U-shaped installing plate, the endoporus of roller sleeve is more than the shape ruler of driven rod It is provided with the second trip bolt on very little and barrel, each U-shaped installing plate is respectively fixedly connected on the outer wall of roller sleeve, when U-shaped installation When plate is two, the angle between two U-shaped installing plate center lines is 120 °~135 °, when U-shaped installing plate is three, wherein The center line of two U-shaped installing plates point-blank, the center line of remaining next U-shaped installing plate and the U-shaped installation of above-mentioned two The angle of plate center line is 90 °；Every driven rod configures at least a set of roll wheel assembly, and the roller housing jacket casing of roll wheel assembly is mounted in Fixed on driven rod and by the second trip bolt.

Above-mentioned coupling pressure rock rupture acoustic monitoring system, in order to send probe installing mechanism to deeper drilling, passes The quantity for sending bar can be more, and two neighboring driven rod is connected by connecting rod, be by the between driven rod and connecting rod One trip bolt is connected；During installation and removal, this connection mode need not rotate two neighboring driven rod, and one Aspect can to avoid because driven rod rotate make probe installing mechanism and drilling between produce friction, on the other hand can to avoid because The petroleum pipeline that driven rod rotates and makes to be connected with oil cylinder influences to use because of abrasion, in a preferred embodiment, for the ease of The transmission of petroleum pipeline is worn with reducing, petroleum pipeline can also be axially fixed with driven rod together with.

Above-mentioned coupling pressure rock rupture acoustic monitoring system, for the ease of by roll wheel assembly, driven rod and connecting rod three Person is fixed together, and the first trip bolt and the second trip bolt can be same trip bolt；, can be first by transmission during installation The fastening screw hole of bar aligns with the fastening screw hole on roller sleeve, recycles trip bolt through both fastening screw holes, and make Trip bolt withstands the column body segment of connecting rod, roll wheel assembly, driven rod and connecting rod three is fixed together.

Above-mentioned coupling pressure rock rupture acoustic monitoring system, for the ease of the cable being connected with acoustic emission probe is drawn Going out, the notch stretched out for acoustic emission probe cable connector that the probe sleeve barrel is set is U type slot, and U type slot Width is slightly larger than the diameter of acoustic emission probe cable connector.

Above-mentioned coupling pressure rock rupture acoustic monitoring system, in order to further improve acoustic emission probe signal transmission effect Fruit, can coat couplant, so that acoustic emission probe lower face in the lower face that acoustic emission probe is contacted with probe sleeve bottom Effectively contacted with the bottom of probe sleeve；The couplant is butter, vaseline etc..

Above-mentioned coupling pressure rock rupture acoustic monitoring system, quantity and the acoustic emission probe quantity phase of installing mechanism of popping one's head in Together, multiple acoustic emission probes can be arranged along borehole axial in same drilling according to actual needs, different acoustic emission probes Direction can be configured according to actual monitoring requirement；Two neighboring acoustic emission sensor is attached by transport mechanism.

The operation principle of coupling pressure rock rupture acoustic monitoring system described in the utility model is：Original state, piston Upper initial point position is under the action of pressure oil, the assembly overall dimensions of acoustic emission probe and installing mechanism of popping one's head in are small at this time In bore size to be installed, so that probe installing mechanism can move freely in drilling；When acoustic emission probe and probe are pacified After the assembly of mounting mechanism is sent to the precalculated position of drilling, under the action of hydraulic pump, the pressure of oil cylinder is entered through petroleum pipeline Oil promotes the downward initial point movement of piston, so that piston rod promotes probe sleeve to be moved away from the direction of housing, realizes shell At the top of body and probe sleeve lower face is in close contact with drill hole inner wall respectively, makes the combination of acoustic emission probe and installing mechanism of popping one's head in Body is in monitoring state；When monitoring end needs to recycle acoustic emission probe, under the action of hydraulic pump, enter oil cylinder through petroleum pipeline Pressure oil promote the movement of piston upward initial point, under piston rod drive, probe sleeve lower face is separated with drill hole inner wall, and sound is sent out The assembly for penetrating probe and installing mechanism of popping one's head in is gradually restored to original state, in order to the recycling of acoustic emission probe.

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

1st, coupling pressure rock rupture acoustic monitoring system described in the utility model, the probe peace in its acoustic emission sensor Mounting mechanism realizes the control to housing and the probe sleeve direction of motion by piston-cylinder assemblies and hydraulic pump, so as to solve sound Transmitting probe is effectively installed and the problem of coupling；The assembly of acoustic emission probe and probe installing mechanism size in original state Less than bore size, after precalculated position is sent to, under the action of hydraulic pump, the pressure oil that oil cylinder is entered through petroleum pipeline promotes The downward initial point movement of piston, so that piston rod promotes probe sleeve to be moved away from the direction of housing, realizes case top It is in close contact respectively with drill hole inner wall with probe sleeve lower face, so as to ensure effective coupling of acoustic emission probe and borehole wall Close；The monitoring signals received are transmitted to ground handling station by acoustic emission sensor, and pass through the computer pair at ground handling station Monitoring signals are shown.

2nd, coupling pressure rock rupture acoustic monitoring system described in the utility model, can be monitored in oil cylinder by hydralic pressure gauge Pressure, if finding, rock mass deformation causes pressure to reduce, and hydraulic pump supplement pressure can be utilized, so that acoustic emission probe and drilling Hole wall is in effective couple state all the time.

3rd, the utility model coupling pressure rock rupture acoustic monitoring system, after monitoring, in the effect of hydraulic pump Under, the pressure oil that oil cylinder is entered through petroleum pipeline promotes the upward initial point of piston to move, under piston rod drive, probe sleeve lower face Separated with drill hole inner wall, probe installing mechanism is gradually restored to original state, easy to which sensor is taken out from drilling, realizes sound The recycling and reuse of emission sensor, save monitoring cost.

4th, the utility model coupling pressure rock rupture acoustic monitoring system, case top used by acoustic emission sensor It is the arc coupling surface that be adapted to borehole wall with probe sleeve lower face, it is ensured that the coupling of acoustic emission probe and borehole wall is imitated Fruit, so as to strengthen the monitoring to mine rock (body) stability and rock burst dynamic disaster and forecast reliability.

5th, the utility model coupling pressure rock rupture acoustic monitoring system, the driven rod of its transport mechanism can be by more It is formed by connecting, not only easy for installation, the influence also from drilling depth and orientation, has the extensive scope of application.

6th, the utility model coupling pressure rock rupture acoustic monitoring system, transport mechanism used by acoustic emission sensor Roll wheel assembly is designed with, it can be achieved that roller transfer in installation process, so as to reduce rubbing for borehole wall in installation transmit process Wiping power influences, it is ensured that the integrality of acoustic emission sensor and transmission cable.

7th, the utility model coupling pressure rock rupture acoustic monitoring system, is fixed on housing two described in acoustic emission sensor It is to be hinged between the connecting bracket and nut at end, therefore housing can be made to be realized within the specific limits with transport mechanism and turned by a small margin It is dynamic, so as to be further ensured that case top is contacted with probe sleeve bottom with borehole wall efficient coupling.

8th, the utility model coupling pressure rock rupture acoustic monitoring system, acoustic emission sensor also have it is simple in structure, The characteristics of installation, convenient disassembly, reaching reduces labor intensity, can save a large amount of human costs.

9th, the utility model coupling pressure rock rupture acoustic monitoring system, in order to meet different demands, voice sending sensor Multiple probe installing mechanisms can be connected and multiple sound is arranged in same drilling to realize by device by multiple driven rods The purpose of transmitting probe, makes each acoustic emission probe end face to be determined respectively according to monitoring needs, so as to improve to mine rock The monitoring efficiency of (body) stability and rock burst dynamic disaster.

Brief description of the drawings

Fig. 1 be coupling pressure rock rupture acoustic monitoring system described in the utility model structure diagram, probe sleeve In to borehole wall direction motion state.

Fig. 2 is that probe sleeve is in borehole wall opposite direction motion state in Fig. 1.

Fig. 3 is that acoustic emission probe and probe are installed in coupling pressure rock rupture acoustic monitoring system described in the utility model The combination diagram figure of mechanism.

Fig. 4 is the A-A sectional views of Fig. 3.

Fig. 5 is the structure diagram of probe installing mechanism middle casing.

Fig. 6 is the B-B sectional views of Fig. 5.

Fig. 7 is the structure diagram of probe sleeve in probe installing mechanism.

Fig. 8 is the schematic diagram of acoustic emission probe in coupling pressure rock rupture acoustic monitoring system described in the utility model.

Fig. 9 is the top view of Fig. 8.

Figure 10 is the nut of connection component and the connected mode schematic diagram of connecting bracket in probe installing mechanism.

Figure 11 is the structure diagram of connecting rod in transport mechanism.

Figure 12 is the structure diagram of driven rod in transport mechanism.

Figure 13 is the structure diagram of roll wheel assembly in transport mechanism.

Figure 14 is in schematic diagram during installment state for the assembly of acoustic emission probe and installing mechanism of popping one's head in.

Figure 15 is in schematic diagram during monitoring state for the assembly of acoustic emission probe and installing mechanism of popping one's head in.

Figure 16 is in schematic diagram during recycling state for the assembly of acoustic emission probe and installing mechanism of popping one's head in.

In figure：1st, housing, 2, probe sleeve, 2-1, cylinder, 2-2, end cap, 2-3, notch, 3, acoustic emission probe, 3-1, line Cable joint 4, piston-cylinder assemblies, 4-1, oil cylinder, 4-2, piston rod, 4-3, piston, 5, guide cylinder, the 6, first petroleum pipeline, 7, Two petroleum pipelines, 8, hydraulic pump, 9, fuel tank, 10, connecting bracket, 11, nut, 12, driven rod, 12-1, connecting hole, 12-2, connection Screw hole, 12-3, the first trip bolt, 13, roll wheel assembly, 13-1, roller, 13-2, U-shaped installing plate, 13-3, wheel shaft, 13-4, rolling Wheel sleeve, 13-5, the second trip bolt, 14, connecting rod, 14-1, thread segment, 14-2, column body segment, 15, bottom surface work station, 16, Computer, 17, hydraulic pump.

Embodiment

By the following examples and with reference to attached drawing to coupling pressure rock rupture acoustic monitoring system described in the utility model Technical solution carry out clear, complete description, it is clear that described embodiment be only the utility model a part implementation Example, instead of all the embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making wound Obtained all other embodiment on the premise of the property made is worked, belongs to the scope that the utility model is protected.

Coupling pressure rock rupture acoustic monitoring system provided in this embodiment, as shown in Figures 1 and 2, including sound emission Sensor and ground handling station 15, acoustic emission sensor are used to be installed in the drilling of monitored rock mass, the monitoring that will be received For signal by cable transmission to ground handling station, the computer 16 in ground handling station believes the monitoring from acoustic emission sensor Number handled and shown, acoustic emission sensor is visited by acoustic emission probe 3, probe installing mechanism and by installation acoustic emission The probe installing mechanism of head is sent to the transport mechanism composition of setting position in drilling, acoustic emission probe 3 and probe installing mechanism Quantity be one, ground handling station 15 further includes hydraulic pump 8 and fuel tank 9.

As shown in Figure 8, Figure 9, above-mentioned acoustic emission probe 3 is cylindrical structural, and extend sideways out cable connector 3-1, sound hair Penetrate 3 end faces of probe and be coated with butter.

As shown in Figures 3 and 4, above-mentioned probe installing mechanism includes housing 1, probe sleeve 2, end cap 2-2, piston oil-cylinder group Part 4 and connection component.

As shown in Figure 5 to Figure 6, above-mentioned housing 1 is the cylinder of both ends open, is provided with its endoporus and is used for and probe sheath The guide cylinders 5 of the combination of cylinder 2, guide cylinder 5 be located at the bottom of inner walls and endoporus to hang down through the through hole of housing wall, its center line Directly in the center line of housing.

As shown in fig. 7, above-mentioned probe sleeve 2 for lower end closed, the cylinder 2-1 of upper end opening, the endoporus of probe sleeve with Acoustic emission probe 3 is that the endoporus of clearance fit, shape and guide cylinder 5 is clearance fit, and the lower face of probe sleeve is with being supervised The matched arc surface of drilling radian of rock mass is surveyed, barrel upper end is provided with one of the cable connector 3-1 stretchings for acoustic emission probe A U type slot 2-3.

As shown in Fig. 3, Fig. 4 and Fig. 7, above-mentioned piston-cylinder assemblies include piston 4-3, piston rod 4-2 and are arranged on housing With the center line of guide cylinder 5 point-blank, piston 4-3 is positioned at oil for the center line of oil cylinder 4-1 at the top of inner wall, oil cylinder 4-1 Inside cylinder 4-1, one end and the piston 4-3 of piston rod 4-2 are connected through a screw thread, and the other end of piston rod 4-2 stretches out oil cylinder 4-1； With being connected at the top of 1 inner wall of housing by welding at the top of oil cylinder 4-1, oil cylinder 4-1 upper designs have the be connected with the first petroleum pipeline 6 One hydraulic fluid port, oil cylinder 4-1 lower parts are designed with the second hydraulic fluid port connected with the second petroleum pipeline 7, when the first hydraulic fluid port is oil inlet, second Hydraulic fluid port is then oil return opening, and when the second hydraulic fluid port is oil inlet, the first hydraulic fluid port is then oil return opening.

As shown in Fig. 4, Figure 10, above-mentioned connection component is two sets, is separately mounted to the both ends of housing 1；Often cover connection component It is made of the secondary connecting bracket 10 of nut 11 and two；10 one end of connecting bracket is welded in the inner wall of housing 1, the other end with outside nut 11 Wall is hinged.Transport mechanism can be installed respectively at 1 both ends of housing by connection component, acoustic emission sensor is so not only convenient for and exists Transmission in drilling, can also be connected multiple probe installing mechanisms by driven rod, to realize the cloth in same drilling Put the purpose of multiple acoustic emission probes.

As shown in Figure 1, Figure 2, shown in Figure 11 to Figure 13, above-mentioned transport mechanism is by driven rod 12, connecting rod 14 and roll wheel assembly 13 It is composed；One end centre of driven rod 12 is equipped with connecting screw hole 12-2, and other end centre is equipped with connecting hole 12-1 And the first trip bolt 12-3 is provided with the hole wall of connecting hole, in the internal thread type and size and connection component of connecting screw hole The internal thread type of nut 11 is identical with size；Connecting rod 14 is made of thread segment 14-1 and column body segment 14-2, for driven rod The connection between connection and driven rod with the connection component, the external screw thread type and size and driven rod of thread segment 14-1 Internal thread type and the size matching of set connecting screw hole 12-2, is connected set by the shape and size of column body segment 14-2 and driven rod The shape and size matching of hole 12-1, it is tight by first after the connecting hole 12-1 of the column body segment 14-2 insertion driven rods of connecting rod Gu screw 12-3 is fixed；Roll wheel assembly 13 includes roller 13-1, U-shaped installing plate 13-2, wheel shaft 13-3 and roller sleeve 13-4, rolling The quantity for taking turns 13-1 is three, and U-shaped installing plate 13-2 and the quantity of wheel shaft 13-3 and the quantity of roller are identical, each roller 13-1 points An Zhuan not be on corresponding wheel shaft, the both ends of each wheel shaft 13-3 are separately mounted on the biside plate of corresponding U-shaped installing plate 13-2, Make each roller respectively between the biside plate of corresponding U-shaped installing plate, the endoporus of roller sleeve 13-4 is more than driven rod 12 The second trip bolt 13-5 is provided with appearance and size and barrel, each U-shaped installing plate is respectively fixedly connected in the outer of roller sleeve 13-4 On wall, the center line of the U-shaped installing plate of two of which point-blank, the center line and above-mentioned two of remaining next U-shaped installing plate The angle of a U-shaped installing plate center line is 90 °；Every driven rod 12 configures at least a set of roll wheel assembly 13, roll wheel assembly Roller sleeve 13-4 is sleeved on driven rod 12 and is fixed by the second trip bolt 13-5.

As shown in Figures 1 to 4, the assembling mode of coupling pressure rock rupture acoustic monitoring system is described in the present embodiment： Acoustic emission probe 3 is loaded in probe sleeve 2, its one end coated with butter is contacted with 2 bottom of probe sleeve, its cable connector The U type slot 2-3 that 3-1 is set from probe sleeve barrel stretches out；End cap 2-2 is covered in probe sleeve cylinder 2-1 upper surfaces, and leads to Trip bolt is crossed to fix end cap 2-2 and probe sleeve cylinder；The probe sleeve 2 for being provided with acoustic emission probe is placed on housing 1 Interior, its underpart section is inserted into guide cylinder 5 set by housing and its lower end is located at outside housing, and the placement orientation of probe sleeve 2 should make sound The cable connector 3-1 of transmitting probe is towards one end of housing；Piston 4-3 be installed on oil cylinder 4-1 in, one end of piston rod 4-2 with Piston 4-3 is affixed, and the centre of the other end and end cap 2-2 top surfaces is connected, the first hydraulic fluid port of oil cylinder by the first petroleum pipeline 6 with Hydraulic pump 8 or oil phase 9 connect, and the second hydraulic fluid port of oil cylinder is connected by the second petroleum pipeline 7 with fuel tank 9 or hydraulic pump 8, hydraulic pump 8 Connected by petroleum pipeline with fuel tank, when the first hydraulic fluid port is oil inlet, the second hydraulic fluid port is oil return opening, the ground of the first petroleum pipeline 6 Pipeline is provided with hydralic pressure gauge 17；Afterwards by the connecting hole 12-1 of the column body segment 14-2 of connecting rod insertion driven rod and tight by first Gu screw 12-3 is fixed, the roller sleeve 13-4 in roll wheel assembly is sleeved on driven rod 12 and by the second trip bolt 13-5 is fixed, then the thread segment 14-1 of connecting rod is combined with nut 6, that is, realizes the company of probe installing mechanism and transport mechanism Connect.

As shown in Fig. 2, Figure 14, the installation operation of coupling pressure rock rupture acoustic monitoring system：Pass through the first petroleum pipeline 6 The first hydraulic fluid port of oil cylinder 4-1 is connected with fuel tank 9, is connected the second hydraulic fluid port of oil cylinder 4-1 with hydraulic pump 8 by the second petroleum pipeline 7 It is logical, hydraulic pump is opened, piston 4-3 moves to initial point position under the action of pressure oil, and acoustic emission probe 3 is pacified with probe at this time The assembly overall dimensions of mounting mechanism are less than bore size, then put acoustic emission probe 3 and the assembly for installing mechanism of popping one's head in Enter in drilling, and operate connected transport mechanism, acoustic emission probe 3 and the assembly of probe installing mechanism are sent to needs The position of monitoring, that is, complete installation.

As shown in Fig. 1, Figure 15, coupling pressure rock rupture acoustic monitoring system is in the operation of monitoring state：Pass through One petroleum pipeline 6 connects the first hydraulic fluid port of oil cylinder with hydraulic pump 8, by the second petroleum pipeline 7 by the second hydraulic fluid port of oil cylinder and fuel tank 9 Connection, opens hydraulic pump, piston 4-3 moves to lower initial point position under the action of pressure oil from upper initial point position, in this process In, piston rod 4-2 drives probe sleeve 2 to be moved to away from 1 direction of housing, so that the top of housing 1 and probe sleeve lower end Face is in close contact with borehole wall respectively, realizes the efficient coupling of acoustic emission probe and borehole wall；It is connected with acoustic emission probe 3 Cable extend to earth's surface, and be connected with the computer 16 at ground handling station, acoustic emission probe 3 can be in engineering construction Rock (body) situation is monitored, and the computer 16 by monitoring signals by cable transmission to ground handling station, passes through computer Monitoring signals are handled and give real-time display.The pressure change in oil cylinder can be detected by hydralic pressure gauge 17, works as discovery After rock mass deformation causes pressure to reduce, pressure can be supplemented into oil cylinder using hydraulic pump, so as to ensure that sound emission passes probe and begins The coupling state of effect is in palisades eventually.

As shown in Fig. 2 and Figure 16, the reclaimer operation of coupling pressure rock rupture acoustic monitoring system：When monitoring process terminates Afterwards, first hydraulic fluid port of oil cylinder is connected with fuel tank 9 by the first petroleum pipeline 6, by the second petroleum pipeline 7 by the second hydraulic fluid port of oil cylinder Connected with hydraulic pump 8, open hydraulic pump, piston 4-3 moves to initial point position under the action of pressure oil from lower initial point, herein During, piston rod drives probe sleeve to be moved in the same direction with piston, probe sleeve lower face is separated with drill hole inner wall and makes sound The assembly overall dimensions of transmitting probe and probe installing mechanism return to size during installation, then operate transport mechanism, will Acoustic emission sensor is pulled out from drilling so that acoustic emission probe and its installing mechanism can be recycled.

Furthermore, it is possible to multiple driven rods 12 are sequentially connected by connecting rod 14, to reach drilling depth requirement, so that not Influenced by mine rock (body) drilling depth and orientation, expand its scope of application.

Claims (6)

1. a kind of coupling pressure rock rupture acoustic monitoring system, including acoustic emission sensor and ground handling station (15), described Acoustic emission sensor is used to be installed in the drilling of monitored rock mass, and the monitoring signals received are passed through cable transmission to ground Work station, the computer (16) in ground handling station are handled and shown to the monitoring signals from acoustic emission sensor Show, it is characterised in that the acoustic emission sensor is by acoustic emission probe (3), probe installing mechanism and will be provided with acoustic emission probe Probe installing mechanism be sent to the transport mechanism composition of setting position in drilling, the quantity of acoustic emission probe (3) is at least one A, the quantity for installing mechanism of popping one's head in is identical with the quantity of acoustic emission probe, and ground handling station (15) further include hydraulic pump (8) and oil Case (9)；

The probe installing mechanism includes housing (1), probe sleeve (2), end cap (2-2), piston-cylinder assemblies (4) and connection group Part；The housing (1) is the cylinder of both ends open, is provided with the endoporus of housing for being led with what probe sleeve (2) combined To cylinder (5), the guide cylinder (5) is located at the bottom of inner walls and endoporus is through the through hole of housing wall, its central axis In the center line of housing；The probe sleeve (2) for lower end closed, the cylinder (2-1) of upper end opening, the endoporus of probe sleeve with Acoustic emission probe (3) is that the endoporus of clearance fit, shape and guide cylinder (5) is clearance fit, the lower face of probe sleeve be with The matched arc surface of drilling radian of monitored rock mass, the cable connector (3-1) that barrel upper end is provided with for acoustic emission probe are stretched One or two notch (2-3) gone out, the notch (2-3) are in relative to the center line of probe sleeve if two, two notches Axial symmetry is distributed；The piston-cylinder assemblies include piston (4-3), piston rod (4-2) and the oil being arranged at the top of inner walls Cylinder (4-1), the center line of oil cylinder (4-1) and the center line of guide cylinder (5) are point-blank；The connection component is two sets, It is separately mounted to the both ends of housing (1)；

Acoustic emission probe (3) is installed in probe sleeve (2), the notch that its cable connector (3-1) is set from probe sleeve barrel (2-3) stretches out；End cap (2-2) is covered in probe sleeve (2) upper surface and is detachable connection with probe sleeve；Install sound The probe sleeve (2) of transmitting probe is placed in housing (1), guide cylinder (5) and its lower end position set by the section insertion housing of its underpart Outside housing, the placement orientation of probe sleeve (2) should make the cable connector (3-1) of acoustic emission probe towards one end of housing； Piston (4-3) is installed in oil cylinder, and one end of piston rod (4-2) and piston (4-3) are affixed, the other end and end cap (2-2) top surface Centre be connected, the oil inlet of oil cylinder is connected by petroleum pipeline with hydraulic pump (8), the oil return opening of oil cylinder by petroleum pipeline with Fuel tank connects；Transport mechanism is connected with the connection component on housing.

2. coupling pressure rock rupture acoustic monitoring system according to claim 1, it is characterised in that the connection component by Nut (11) and at least two secondary connecting bracket (10) compositions, one end of each connecting bracket is uniformly distributed simultaneously around nut (11) outer wall It is hinged with nut outer wall, the other end and the housing (1) of each connecting bracket are connected.

3. coupling pressure rock rupture acoustic monitoring system according to claim 2, it is characterised in that the transport mechanism by Driven rod (12), connecting rod (14) and roll wheel assembly (13) are composed；

One end centre of the driven rod (12) is equipped with connecting screw hole (12-2), and other end centre is equipped with connecting hole The first trip bolt (12-3), the internal thread type and size of the connecting screw hole are provided with (12-1) and the hole wall of connecting hole It is identical with the internal thread type of nut (11) and size in the connection component；

The connecting rod (14) is made of thread segment (14-1) and column body segment (14-2), for driven rod and the connection component Connection between connection and driven rod, is connected spiral shell set by the external screw thread type and size of the thread segment (14-1) and driven rod Internal thread type and the size matching in hole (12-2), connecting hole set by the shape and size and driven rod of the column body segment (14-2) The shape and size matching of (12-1), passes through the after connecting hole (12-1) of column body segment (14-2) the insertion driven rod of connecting rod One trip bolt (12-3) is fixed；

The roll wheel assembly (13) includes roller (13-1), U-shaped installing plate (13-2), wheel shaft (13-3) and roller sleeve (13- 4), the quantity of roller (13-1) is two or three, U-shaped installing plate (13-2) and the quantity of wheel shaft (13-3) and the quantity of roller Identical, each roller (13-1) is separately mounted on corresponding wheel shaft, and the both ends of each wheel shaft (13-3) are separately mounted to corresponding U-shaped On the biside plate of installing plate (13-2), make each roller respectively between the biside plate of corresponding U-shaped installing plate, roller sleeve The endoporus of (13-4), which is more than on the appearance and size of driven rod (12) and barrel, is provided with the second trip bolt (13-5), each U-shaped peace Loading board is respectively fixedly connected on the outer wall of roller sleeve (13-4), when U-shaped installing plate is two, two U-shaped installing plate center lines Between angle be 120 °~135 °, when U-shaped installing plate is three, the center line of the U-shaped installing plate of two of which is straight at one On line, 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 °；

Every driven rod (12) configures at least a set of roll wheel assembly (13), and the roller sleeve (13-4) of roll wheel assembly is sleeved on transmission Fixed on bar (12) and by the second trip bolt.

4. the coupling pressure rock rupture acoustic monitoring system according to any claim in claims 1 to 3, its feature exist In the probe sleeve barrel upper end set for acoustic emission probe cable connector stretch out notch (2-3) be U type slot.

5. the coupling pressure rock rupture acoustic monitoring system according to any claim in claims 1 to 3, its feature exist Couplant is coated with the lower face that the acoustic emission probe (3) is contacted with probe sleeve bottom.

6. coupling pressure rock rupture acoustic monitoring system according to claim 4, it is characterised in that the acoustic emission probe (3) lower face contacted with probe sleeve bottom is coated with couplant.