CN206942749U - Engineering rock mass acoustic emission monitor(ing) and Transmission system - Google Patents

Abstract

The utility model discloses a kind of engineering rock mass acoustic emission monitor(ing) and Transmission system, including acoustic emission sensor and ground handling station, acoustic emission sensor is arranged in the drilling of monitored rock mass, the monitoring signals received are passed through into cable transmission to ground handling station, acoustic emission sensor is by acoustic emission probe, probe installing mechanism and the probe installing mechanism for being provided with acoustic emission probe is sent into the transport mechanism of setting position in drilling formed, probe sleeve of the probe installing mechanism including the housing that is connected with transport mechanism and for accommodating acoustic emission probe.The acoustic emission monitor(ing) of the utility model engineering rock mass and the probe installing mechanism in Transmission system, by the mutual cooperation of the air bag and spring that are arranged between housing and probe sleeve, solves the problem that acoustic emission probe is effectively installed and coupled, the efficient coupling of acoustic emission probe and borehole wall is ensured, so as to strengthen the monitoring to mine rock (body) stability and rock burst dynamic disaster and forecast reliability.

Description

Engineering rock mass acoustic emission monitor(ing) and Transmission system

Technical field

Rock (body) project security monitoring technical field that the utility model belongs in engineering construction, is related to a kind of engineering rock Body acoustic emission monitor(ing) and Transmission 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 engineering rock mass acoustic emission monitor(ing) with Transmission system, to make acoustic emission sensor easy for installation, realize acoustic emission probe and borehole wall efficient coupling, it is ensured that sound is sent out Penetrate the validity of probe detection signal and be easy to reclaim.

Engineering rock mass acoustic emission monitor(ing) described in the utility model includes acoustic emission sensor and ground handling with Transmission system Stand, the acoustic emission sensor is used to be arranged 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 also includes aerating and exhaust device；The probe installing mechanism bag Include housing, probe sleeve, end cap, spring, air bag and connection component；The housing be both ends open thin-wall circular cylinder, housing Endoporus in be provided with upper guide cylinder and lower guide cylinder for being combined with probe sleeve, the upper guide cylinder is located at inner walls Top and be provided with towards the barrel end at shell one end or both ends and be easy to the first groove that the cable connector of acoustic emission probe passes through Mouthful, lower guide cylinder be located at the bottom of inner walls and endoporus to be led through the through hole of housing wall, the center line of upper guide cylinder with To cylinder center line point-blank and perpendicular to the center line of housing；The probe sleeve is lower end closed, upper end open Cylinder, the endoporus of probe sleeve and acoustic emission probe are that gap coordinates, the endoporus of profile and lower guide cylinder is that gap coordinates, and are visited The lower surface of headgear cylinder is the arc surface matched with the drilling radian of monitored rock mass, and probe sleeve barrel upper end is provided with for sound One or two second notch that the cable connector of transmitting probe stretches out, outer wall are provided with two spring bases, the second notch if Two, two notches are axisymmetricly distributed relative to the center line of probe sleeve, two spring bases relative to probe sleeve center line Axisymmetricly it is distributed, and the center line of the line that projects in horizontal plane of the center line of two spring bases and the notch is in horizontal plane Projection is vertical；The inner edge of the end cap matches with probe sleeve, between the endoporus of upper guide cylinder is set by the outer rim and housing of end cap Gap coordinates；The connection component is two sets, is separately mounted to the both ends of housing；Acoustic emission probe is arranged in probe sleeve, its The second notch that cable connector is set from probe sleeve side wall stretches out；End cap is covered in probe sleeve upper surface and and probe sleeve For detachable connection；The probe sleeve for being provided with acoustic emission probe is placed in housing, and section insertion housing in its underpart is set Guide cylinder and its lower end is located at outside housing, set by its upper segment insertion housing in upper guide cylinder, the placement orientation of probe sleeve The cable connector of acoustic emission probe should be made towards one end of housing；Air bag is placed on what upper guide cylinder set by housing surrounded with end cap In chamber, it is connected by airway tube with the aerating and exhaust device in ground handling station；Spring is two, one end difference of two springs It is connected with two spring bases, the inner walls of the other ends of two springs respectively with upper guide cylinder both sides are connected, two springs peaces Extended state or free state are in after dress；Transport mechanism is connected with the connection component on housing.

Above-mentioned engineering rock mass acoustic emission monitor(ing) and Transmission system, in order to ensure probe in acoustic emission sensor installation process Sleeve or housing move along direction away from each other, housing and probe sleeve is in close contact respectively with drill hole inner wall, probe Sleeve or housing are by 5~8 times that the active force of air bag is preferably single spring tension.

Above-mentioned acoustic emission sensor, the endoporus of upper guide cylinder and the profile of probe sleeve set by the outer rim and housing of end cap Endoporus with lower guide cylinder is that gap coordinates, so that it is guaranteed that the direction of motion of the probe sleeve in housing does not shift.

Above-mentioned acoustic emission sensor, for the ease of installation, the housing is combined by two semicylindrical bodies；This practicality is new Type is to realize being connected for two semicylindrical bodies by connection sheet and screw, and this connected mode is more solid and reliable, but this is not It is unique implementation, other connected modes that those skilled in the art can also select this area to disclose are realized solid Even, such as two semicylindrical bodies are connected by clamping or welding manner realization etc..

Above-mentioned engineering rock mass acoustic emission monitor(ing) and Transmission system, for the ease of the cable being connected with acoustic emission probe is drawn Go out, the confession acoustic emission probe line of the first notch of the upper guide cylinder barrel end set and the setting of probe sleeve barrel upper end The second notch that cable joint stretches out is U type slot, and the width of the first notch and the second notch is slightly larger than acoustic emission probe line The diameter of cable joint.

Above-mentioned acoustic emission sensor, the connection component that the utility model uses is by nut and at least two secondary connecting bracket groups 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 contact with borehole wall efficient coupling.

Above-mentioned engineering rock mass acoustic emission monitor(ing) and Transmission system, the air bag are connected by airway tube and earth's surface aerating and exhaust device Connect.Earth's surface aerating and exhaust device is used to bleed off to airbag aeration or by the gas in air bag, the charge and discharge used in the utility model Device of air includes barometer and air tube, and barometer is used for the air pressure size that air bag is filled with to measurement；Air tube is used for by with inflating Cylinder is mutually connected in airbag aeration, or is communicated with air/air extractor by gas release/extraction in air bag.Above-mentioned inflation/deflation dress Other usual manners that putting also can use this area to disclose are realized, are substituted for example with air pressure pump and stop valve Air tube and inflator are stated, stop valve is connected with barometer；When for airbag aeration when, stop valve further goes out with air pressure pump Mouth connection, opens stop valve, is airbag aeration, when reaching required air pressure, closes stop valve；When needing the gas in air bag When body discharges, the connection of stop valve and air pressure pump is disconnected, and airway tube is communicated with air.

Above-mentioned engineering rock mass acoustic emission monitor(ing) and Transmission 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 combined by driven rod, connecting rod and roll wheel assembly；The transmission One end centre of bar is provided with connecting screw hole, and other end centre, which is provided 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 chi of nut in the connection component of the connecting screw hole It is very little identical；The connecting rod is made up 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 chi of connecting screw hole set by driven rod of the thread segment Very little matching, the shape and size of the column body segment match with the shape and size of connecting hole set by driven rod, when the post 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 profile chi 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 engineering rock mass acoustic emission monitor(ing) and Transmission system, in order to which probe installing mechanism is delivered into deeper drilling, pass The quantity for sending bar can be more, and two neighboring driven rod is connected by connecting rod, passes through first between driven rod and connecting rod Trip bolt is connected；During installation and removal, this connected mode need not rotate two neighboring driven rod, a side Face can avoid making to produce friction between probe installing mechanism and drilling because driven rod rotates, and on the other hand can avoid because passing The airway tube for sending bar to rotate and making to be connected with air bag influences to use because of abrasion, in a preferred embodiment, for the ease of leading The transmission of tracheae is worn with reducing, airway tube can also be axially fixed with driven rod together with.

Above-mentioned acoustic emission sensor, for the ease of roll wheel assembly, driven rod and connecting rod three are fixed together, first Trip bolt and the second trip bolt can be same trip bolt；, can be first by the fastening screw of driven rod and rolling during installation Fastening screw alignment on wheel sleeve, recycles trip bolt through both fastening screws, and trip bolt is withstood connection The column body segment of bar, roll wheel assembly, driven rod and connecting rod three is set to be fixed together.

Above-mentioned engineering rock mass acoustic emission monitor(ing) and Transmission 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 being actually needed, different acoustic emission probes Direction can be configured according to actual monitoring requirement；Two neighboring acoustic emission sensor is attached by transport mechanism.

Above-mentioned engineering rock mass acoustic emission monitor(ing) and Transmission system, in order to further improve acoustic emission probe signal transmission effect Fruit, couplant can be coated in the end face of acoustic emission probe and probe sleeve endoporus, so that acoustic emission probe bottom end face is with visiting The bottom of headgear cylinder effectively contacts；The couplant is butter, vaseline etc..

Engineering rock mass acoustic emission monitor(ing) described in the utility model and the operation principle of Transmission system：The engineering rock mass sound emission Monitoring and the acoustic emission sensor of Transmission system are coordinated using air bag and spring, it is possible to achieve to housing and probe sleeve motion side To control；In an initial condition, air bag is in complete deflation status, now the combination of acoustic emission probe and probe installing mechanism Body overall dimensions are less than bore size to be installed, so that the assembly of acoustic emission probe and probe installing mechanism can drill Inside move freely；When being filled with gas into air bag, spring elongation deformation constantly increases, when pulling force increases to probe sheath suffered by spring Cylinder or housing are moved along direction away from each other, then housing and probe sleeve can be made to be in close contact respectively with drill hole inner wall, because This can ensure the efficient coupling of acoustic emission probe and borehole wall, meet the condition of work of acoustic emission probe signal monitoring；When After gas in air bag is released, acoustic emission probe returns to original state with probe sleeve under spring restoring force effect, makes Probe sleeve lower end separates with drill hole inner wall, in order to the recovery of acoustic emission probe.

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

1st, engineering rock mass acoustic emission monitor(ing) described in the utility model and Transmission system, its installing mechanism of popping one's head in is by being arranged on The mutual cooperation of air bag and spring between housing and probe sleeve, solves the difficulty that acoustic emission probe is effectively installed and coupled Topic；After acoustic emission probe assembles with probe installing mechanism, the assembly size of acoustic emission probe and probe installing mechanism, which is less than, bores Hole size, it is easy to the assembly to be transmitted in drilling, after the assembly is sent into precalculated position, to airbag aeration, in gas Under pressure effect, the housing direction movement mutually opposite with probe sleeve, case top and probe sleeve bottom are tight with borehole wall Contiguity is touched, so as to ensure the efficient coupling of acoustic emission probe and borehole wall；The monitoring signals that acoustic emission sensor will receive Transmit to ground handling station, and monitoring signals are shown by the computer at ground handling station.

2nd, engineering rock mass acoustic emission monitor(ing) described in the utility model and Transmission system, after monitoring terminates, sound emission is discharged Sensor intracapsular pressure, and spring restoring force is relied on, probe sleeve lower end is separated with drill hole inner wall, in order to pass Sensor reclaims from drilling, so as to realize the recovery of acoustic emission sensor and reuse, saves monitoring cost.

3rd, engineering rock mass acoustic emission monitor(ing) described in the utility model and Transmission system, air bag used by acoustic emission sensor In housing, it can avoid wearing caused by contacting or rubbing with the wall of a borehole in transmit process, puncture, so as to ensure The safety and stability of air bag.

4th, engineering rock mass acoustic emission monitor(ing) described in the utility model and Transmission system, housing used by acoustic emission sensor Top and probe sleeve lower surface are the arc coupling surface being adapted to borehole wall, it is ensured that the coupling of acoustic emission probe and borehole wall Effect is closed, so as to strengthen the monitoring to mine rock (body) stability and rock burst dynamic disaster and forecast reliability.

5th, engineering rock mass acoustic emission monitor(ing) described in the utility model and Transmission system, acoustic emission sensor is used to pop one's head in Size is less than bore size in installing mechanism transmit process, and the driven rod of transport mechanism can be formed by connecting by more, not only It is easy for installation, do not influenceed by drilling depth and orientation also, there is the wider scope of application.

6th, engineering rock mass acoustic emission monitor(ing) described in the utility model and Transmission system, acoustic emission sensor is used to be transmitted Mechanism is designed with live roller, to realize the rolling transmission in installation process, so as to overcome borehole wall in installation transmit process Friction effects.

7th, engineering rock mass acoustic emission monitor(ing) described in the utility model and Transmission system, are fixed on acoustic emission sensor and are used Housing connecting bracket and nut between be rotation connection, installing mechanism can be made to realize within the specific limits and turned by a small margin It is dynamic, so as to be further ensured that case top contacts with probe sleeve lower surface with borehole wall efficient coupling.

8th, engineering rock mass acoustic emission monitor(ing) described in the utility model and Transmission system, acoustic emission sensor also have structure letter Singly, the characteristics of installation, convenient disassembly, reaching reduces labor intensity, can save a large amount of human costs.

9th, engineering rock mass acoustic emission monitor(ing) described in the utility model and Transmission system, in order to meet different demands, Ke Yitong Cross multiple driven rods by it is multiple probe installing mechanisms connect with realize multiple acoustic emission probes is arranged in same drilling Purpose, each acoustic emission probe end face direction is determined respectively according to monitoring needs, it is stable to rock (body) so as to improve The monitoring efficiency of property and rock burst dynamic disaster.

Brief description of the drawings

Fig. 1 is the structural representation of engineering rock mass acoustic emission monitor(ing) described in the utility model and Transmission system.

Fig. 2 is that engineering rock mass acoustic emission monitor(ing) described in the utility model is installed with acoustic emission probe, probe in Transmission system The combination diagram of mechanism and aerating and exhaust device.

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

Fig. 4 is the structural representation of housing in probe installing mechanism.

Fig. 5 is Fig. 4 B-B sectional views.

Fig. 6 is the schematic diagram of acoustic emission probe.

Fig. 7 is Fig. 6 top view.

Fig. 8 is the structural representation of probe sleeve in probe installing mechanism.

Fig. 9 is the connection diagram of spring and housing in probe installing mechanism.

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

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

Figure 12 is the structural representation of driven rod in transport mechanism.

Figure 13 is the structural representation of roll wheel assembly in transport mechanism.

Figure 14 is in installment state for the assembly of acoustic emission probe described in the utility model and installing mechanism of popping one's head in or returned Schematic diagram during receipts state.

Figure 15 is when the assembly of acoustic emission probe described in the utility model and installing mechanism of popping one's head in is in monitoring state Schematic diagram.

Wherein：1st, housing, 1-1, semicylindrical body, 1-2, upper guide cylinder, 1-3, lower guide cylinder, 1-4, the first notch, 1-5, Connection sheet, 2, probe installation sleeve, 2-1, spring base, 2-2, end cap, 2-3, the second notch, 3, acoustic emission probe, 3-1, cable Joint, 4, spring, 5, connecting bracket, 6, nut, 7, driven rod, 7-1, connecting hole, 7-2, connecting screw hole, 7-3, the first fastening spiral shell Nail, 8, roll wheel assembly, 8-1, roller, 8-2, U-shaped installing plate, 8-3, wheel shaft, 8-4, roller sleeve, 8-5, the second trip bolt, 9th, connecting rod, 9-1, thread segment, 9-2, column body segment, 10, air bag, 11, airway tube, 12, ground handling station, 12-1, computer, 12-2, aerating and exhaust device, 12-2-1, barometer, 12-2-2, air tube, 13, cable.

Embodiment

Clear, complete description is carried out to the technical solution of the utility model by the following examples and with reference to accompanying drawing, is shown So, described embodiment is only part of the embodiment of the present utility model, rather than whole embodiments.It is new based on this practicality Embodiment in type, those of ordinary skill in the art's all other reality resulting on the premise of creative work is not made Example is applied, belongs to the scope that the utility model is protected.

The engineering rock mass acoustic emission monitor(ing) and Transmission system that the present embodiment provides, as shown in figure 1, including acoustic emission sensor With ground handling station 12, the acoustic emission sensor is used to be arranged in the drilling of monitored rock mass, the monitoring signals that will be received By cable transmission to ground handling station 12, the computer 12-1 in ground handling station is believed 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；Ground handling station 12 also includes inflation/deflation and filled Put 12-2.The quantity of probe installing mechanism and acoustic emission probe 3 is one.

As shown in Figure 6, Figure 7, 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 2 and 3, above-mentioned probe installing mechanism includes housing 1, probe sleeve 2, end cap 2-2, spring 4, air bag 10 and connection component.Number of springs two in the present embodiment.The air bag 10 used in the present embodiment is rubber pneumatic bag.

As shown in Figures 4 and 5, above-mentioned housing 1 is the thin-wall circular cylinder of both ends open, is passed through by two semicylindrical body 1-1 Connection sheet 1-5 and screw are formed by fixedly connecting, and case top is the arc surface matched with drilling radian, and use is provided with its endoporus It is located at the top of inner walls and direction in the upper guide cylinder 1-2 and lower guide cylinder 1-3, upper guide cylinder combined with probe sleeve 2 One end of housing, which is provided with, is easy to the first notch 1-4 that the cable connector of acoustic emission probe passes through, and lower guide cylinder 1-3 is positioned at interior internal The bottom of wall and endoporus are the through hole through housing wall, and the center line of the center line of upper guide cylinder and lower guide cylinder is in straight line Above and perpendicular to the center line of housing.

As shown in figure 8, above-mentioned probe sleeve 2 is lower end closed, the cylinder of upper end open, endoporus and the sound of probe sleeve are sent out It is that gap coordinates to penetrate the endoporus that probe 3 is gap cooperation, profile and lower guide cylinder 1-3, and the lower surface of probe sleeve is with being supervised The arc surface of the drilling radian matching of rock mass is surveyed, probe sleeve barrel upper end is provided with the cable connector 3-1 for acoustic emission probe The U-shaped second notch 2-3 stretched out, outer wall are provided with two spring base 2-1, and two spring base 2-1 are relative to probe sleeve Center line is axisymmetricly distributed, and the line that projects in horizontal plane of the center line of two spring bases and notch 2-3 center line are in water The projection of plane is vertical；End cap 2-2 inner edge matches with probe sleeve, upper guide cylinder 1-2 set by end cap 2-2 outer rim and housing Endoporus be gap coordinate.

As shown in Fig. 3, Fig. 7, above-mentioned connection component is two sets, is separately mounted to the both ends of housing 1；Connection component is by nut 6 and two secondary connecting bracket 5 form, be two per quantity in secondary connecting bracket；The both ends of connecting bracket 5 are curved to two opposite directions Folding processes the structure suitable for being connected with housing 1 and nut 6；The one end of connecting bracket 5 is welded in the inner side of housing 1, and the other end leads to Rivet is crossed to be hinged with the outer wall of nut 6.Transport mechanism can be installed respectively at the both ends of housing 1 by connection component, so not only just In transmission of the acoustic emission sensor in drilling, multiple probe installing mechanisms can also be connected by driven rod, with reality The purpose of multiple acoustic emission probes is arranged in present same drilling.

As shown in Figure 11 to Figure 13, above-mentioned transport mechanism is combined by driven rod 7, connecting rod 9 and roll wheel assembly 8；Pass One end centre of bar 7 is sent to be provided with connecting screw hole 7-2, other end centre is provided with the hole wall of connecting hole 7-1 and connecting hole On be provided with the first trip bolt 7-3, the internal thread type and size and the interior spiral shell of nut 6 in the connection component of connecting screw hole Line type is identical with size；Connecting rod 9 is made up of thread segment 9-1 and column body segment 9-2, for driven rod and the connection component Connection between connection and driven rod；Thread segment 9-1 external screw thread type and size and connecting screw hole 7-2 set by driven rod Internal thread type and size matching, connecting hole 7-1 shape and size set by column body segment 9-2 shape and size and driven rod Match somebody with somebody, fixed after the column body segment 9-2 of connecting rod inserts the connecting hole 7-1 of driven rod by the first trip bolt 7-3.Roll wheel assembly 8 include roller 8-1, U-shaped installing plate 8-2, wheel shaft 8-3 and roller sleeve 8-4；Roller 8-1 quantity is three, U-shaped installing plate 8-2 and wheel shaft 8-3 quantity are identical with the quantity of roller, and each roller 8-1 is separately mounted on corresponding wheel shaft, each wheel shaft 8-3 Both ends be separately mounted on corresponding U-shaped installing plate 8-2 biside plate, make each roller respectively positioned at corresponding U-shaped installing plate Biside plate between, roller sleeve 8-4 endoporus, which is more than on the appearance and size of driven rod 7 and barrel, is provided with the second trip bolt 8-5, each U-shaped installing plate are respectively fixedly connected on roller sleeve 8-4 outer wall, and the center line of the U-shaped installing plate of two of which is at one On straight 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 biography Bar 7 is sent to configure a set of roll wheel assembly 8, the roller sleeve 8-4 of roll wheel assembly is sleeved on driven rod 7 and by the second trip bolt It is fixed.

As shown in Figures 1 and 2, above-mentioned aerating and exhaust device 12 includes barometer 12-2-1 and air tube 12-2-2；Barometer 12- 2-1 is used to measure the air pressure size for being filled with air bag 10；Air tube 12-2-2 is connected with inflator, is inflated for air bag 10, or with it is big The logical gas by air bag 10 of gas phase discharges.

As shown in Figure 1 to Figure 3, the assembling mode of above-mentioned acoustic emission sensor is：By acoustic emission probe 3 coated with butter One end is installed in probe sleeve 2, and the second notch 2-3 that its cable connector 3-1 is set from probe sleeve side wall stretches out；End cap 2- 2 are covered in probe sleeve upper surface, and are fixed end cap 2-2 with probe sleeve by trip bolt, fix acoustic emission probe 3 In in probe sleeve 2；The probe sleeve 2 for being provided with acoustic emission probe is placed in the housing 1 for being provided with connection component, its underpart Section insertion housing 1 is set its lower end of guide cylinder 1-3 inscribes and is located at outside housing 1, and its upper segment and air bag 10 insert housing 1 In set upper guide cylinder 1-2, the placement orientation of probe sleeve 2 should make the cable connector 3-1 of acoustic emission probe 3 towards the one of housing End；Air bag 10 is placed in the chamber that upper guide cylinder set by housing is encircled a city with end cap 2-2；One end of two springs 4 passes through respectively Screw is connected with two spring base 2-1, and the inner walls of the other ends of two springs 4 respectively with upper guide cylinder both sides are connected, from And complete the assembling of probe installing mechanism；Rear connecting rod column body segment 9-2 insertion transmission lever attachment hole 7-1 and pass through first fastening Screw 7-3 is fixed, and roll wheel assembly roller sleeve 8-4 is sleeved on driven rod 7, and is fixed with the second trip bolt 8-5-, then Connecting rod thread segment 9-1 and nut 6 are coordinated, so as to realize that probe installing mechanism is connected with transport mechanism, sound emission is completed and passes Sensor assembles.When initial, two springs 4 are in extended state, and air bag 10 is in complete deflation status, and probe installing mechanism is overall Size is less than bore size to be installed.

As shown in Fig. 1, Figure 14, Figure 15, the use process of engineering rock mass acoustic emission monitor(ing) and Transmission system is：It will assemble The air bag 10 of acoustic emission sensor be connected by airway tube 11 with the barometer 12-2-1 in ground handling station 12, air tube 12- 2-2 is connected with inflator, then the assembly of acoustic emission probe 3 and probe installing mechanism is put into the drilling of monitored rock mass It is interior, driven rod 7 is promoted, the assembly of acoustic emission probe 3 and probe installing mechanism is delivered into the position for needing to monitor, then passed through Inflator aerating into air bag 10, makes housing 1 be moved in the opposite direction with probe sleeve 2, until the top of housing 1 and probe The lower surface of sleeve 2 is in close contact with borehole wall respectively；Due to the top of housing 1 and the lower surface of probe sleeve 2 be with The arc surface of drilling hole wall-shaped face adaptation, it thereby may be ensured that sensor contacts with the effective of borehole wall, it is ensured that sound emission is visited The signal validity and stability that head receives；In addition, it is rotation connection to be fixed between the connecting bracket 5 of housing 1 and nut 6, Acoustic emission sensor can be made to realize in installation process to rotate by a small margin, it is ensured that the top and probe sleeve bottom of housing 1 are with boring Hole hole wall effectively contacts；The cable 13 being connected with acoustic emission probe 3 extends to earth's surface, and with the computer 4-1 at ground handling station 4 It is connected.After acoustic emission probe 3 is positioned over drilling setting position, acoustic emission probe 3 can be with to the mine rock in engineering construction (body) situation is monitored, and the computer 4-1 by monitoring signals by cable transmission to ground handling station 4, passes through computer 4-1 Monitoring signals are handled and shown.In acoustic emission probe monitoring process, barometer 12-1 can also be passed through at any time Reading, find in time air bag 10 whether gas leakage, can be by aerating and exhaust device 12 in time to air bag 10 during if there is gas leakage Interior aerating.

After monitoring process terminates, the gas in air bag 10 is discharged through airway tube 11 by air tube 12-2, now, in bullet Under the elastic restoring force effect of spring 4, the lower surface of probe sleeve 2 separates with drill hole inner wall, makes the retraction housing 1 again of probe sleeve 2 It is interior, so as to make the assembly overall dimensions of acoustic emission probe and installing mechanism of popping one's head in be less than bore size to be installed again, and then, Acoustic emission sensor can be pulled out from drilling by driven rod 7 so that acoustic emission probe 3 and its installing mechanism can be returned Receive and recycle.

Furthermore, it is possible to multiple driven rods 7 are sequentially connected by connecting rod 9, to reach drilling depth requirement, so as to not by The influence of mine rock (body) drilling depth and orientation, expands its scope of application.

Welding attachment in the present embodiment, can also be other by bolt attachment, integral type curing molding etc. Attachment substitutes；Screw attachment, it can also be substituted by other modes that are removably fixed with such as buckle, magnetic coupling.

Claims (10)

1. a kind of engineering rock mass acoustic emission monitor(ing) and Transmission system, including acoustic emission sensor and ground handling station (12), described Acoustic emission sensor is used to be arranged in the drilling of monitored rock mass, by the monitoring signals received by cable (13) transmit to Ground handling station, the computer (12-1) in ground handling station are handled and given to the monitoring signals from acoustic emission sensor With display, it is characterised in that the acoustic emission sensor is by acoustic emission probe (3), probe installing mechanism and will install acoustic emission The probe installing mechanism of probe is sent to the transport mechanism composition of setting position in drilling, and the quantity of acoustic emission probe (3) is at least For one, the quantity for installing mechanism of popping one's head in is identical with the quantity of acoustic emission probe, and ground handling station (12) also include inflation/deflation and filled Put (12-2)；

The probe installing mechanism includes housing (1), probe sleeve (2), end cap (2-2), spring (4), air bag (10) and connection Component；The housing (1) is the thin-wall circular cylinder of both ends open, is provided with and is used for and probe sleeve (2) group in the endoporus of housing The upper guide cylinder (1-2) and lower guide cylinder (1-3) closed, the upper guide cylinder (1-2) are located at the top of inner walls and towards shells The barrel end of body one or both ends, which is provided with, is easy to the first notch (1-4) that the cable connector of acoustic emission probe passes through, lower guiding Cylinder (1-3) is located at the bottom of inner walls and endoporus is through the through hole of housing wall, the center line of upper guide cylinder and lower guide cylinder Center line point-blank and perpendicular to the center line of housing；The probe sleeve (2) is lower end closed, upper end open Cylinder, endoporus and the acoustic emission probe (3) of probe sleeve are that gap coordinates, profile and the endoporus of lower guide cylinder (1-3) are gap Coordinate, the lower surface of probe sleeve is the arc surface matched with the drilling radian of monitored rock mass, and probe sleeve barrel upper end is set One or two second notch (2-3) stretched out for the cable connector (3-1) of acoustic emission probe is equipped with, outer wall is provided with two bullets Spring abutment (2-1), when the second notch (2-3) is two, two the second notches (2-3) are in axle relative to the center line of probe sleeve Symmetrical, two spring bases (2-1) are axisymmetricly distributed relative to the center line of probe sleeve, and the center line of two spring bases exists The line of horizontal plane projection is vertical in the projection of horizontal plane with the center line of second notch (2-3)；The end cap (2-2) Inner edge matches with probe sleeve, and the endoporus of upper guide cylinder (1-2) coordinates for gap set by the outer rim and housing of end cap (2-2)；Institute Connection component is stated as two sets, is separately mounted to the both ends of housing (1)；

Acoustic emission probe (3) be arranged on probe sleeve (2) in, its cable connector (3-1) set from probe sleeve side wall second Notch (2-3) stretches out；End cap (2-2) is covered in probe sleeve (2) upper surface and is detachable connection with probe sleeve；Installation The probe sleeve (2) of acoustic emission probe is placed in housing (1), its underpart section insertion housing set guide cylinder (1-3) and Its lower end is located at outside housing, set by its upper segment insertion housing in upper guide cylinder (1-2), the placement orientation of probe sleeve (2) The cable connector (3-1) of acoustic emission probe should be made towards one end of housing；Air bag (10) is placed on upper guide cylinder (1- set by housing 2) in the chamber surrounded with end cap (2-2), it is connected by airway tube (11) with the aerating and exhaust device (12-2) in ground handling station； Spring (4) is two, and one end of two springs is connected with two spring bases (2-1) respectively, the other ends of two springs respectively with The inner walls connection of upper guide cylinder both sides, extended state or free state are in after two spring installations；Transport mechanism and peace Connection component connection on housing.

2. engineering rock mass acoustic emission monitor(ing) and Transmission system according to claim 1, it is characterised in that the connection component by Nut (6) and at least two secondary connecting brackets (5) composition, one end of each connecting bracket be uniformly distributed around nut (6) outer wall and with Nut outer wall is hinged, and the other end and the housing (1) of each connecting bracket are connected.

3. engineering rock mass acoustic emission monitor(ing) and Transmission system according to claim 2, it is characterised in that the transport mechanism by Driven rod (7), connecting rod (9) and roll wheel assembly (8) combine；

One end centre of the driven rod (7) is provided with connecting screw hole (7-2), and other end centre is provided with connecting hole (7- 1) the first trip bolt (7-3), the internal thread type and size of the connecting screw hole and institute and on the hole wall of connecting hole are provided with The internal thread type for stating nut in connection component (6) is identical with size；

The connecting rod (9) is made up of thread segment (9-1) and column body segment (9-2), the company for driven rod and the connection component Connect and driven rod between connection, the external screw thread type and size of the thread segment (9-1) and connecting screw hole set by driven rod Internal thread type and the size matching of (7-2), connecting hole (7- set by the shape and size and driven rod of the column body segment (9-2) 1) shape and size matching, passes through the first fastening after the column body segment (9-2) of connecting rod inserts connecting hole (7-1) of driven rod Screw (7-3) is fixed；

The roll wheel assembly (8) includes roller (8-1), U-shaped installing plate (8-2), wheel shaft (8-3) and roller sleeve (8-4), roller The quantity of (8-1) is two or three, and the quantity of U-shaped installing plate (8-2) and wheel shaft (8-3) is identical with the quantity of roller, each rolling Wheel (8-1) is separately mounted on corresponding wheel shaft, and the both ends of each wheel shaft (8-3) are separately mounted to corresponding U-shaped installing plate (8-2) Biside plate on, make each roller respectively between the biside plate of corresponding U-shaped installing plate, the endoporus of roller sleeve (8-4) is big In being provided with the second trip bolt (8-5) in the appearance and size of driven rod (7) and barrel, each U-shaped installing plate is respectively fixedly connected in rolling On the outer wall of wheel sleeve (8-4), 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 be three when, the center line of the U-shaped installing plate of two of which point-blank, remaining next U-shaped peace The center line of loading board and the angle of the U-shaped installing plate center line of above-mentioned two are 90 °；

Every driven rod (7) configures at least a set of roll wheel assembly (8), and the roller sleeve (8-4) of roll wheel assembly is sleeved on driven rod (7) fixed on and by the second trip bolt.

4. engineering rock mass acoustic emission monitor(ing) and Transmission system according to any claim in claims 1 to 3, its feature exist Combined in the housing (1) by two semicylindrical bodies (1-1).

5. engineering rock mass acoustic emission monitor(ing) and Transmission system according to any claim in claims 1 to 3, its feature exist It is U type slot in the first notch (1-4) of the upper guide cylinder barrel end set, what probe sleeve barrel upper end was set supplies sound The second notch (2-3) that transmitting probe cable connector stretches out is U type slot.

6. engineering rock mass acoustic emission monitor(ing) and Transmission system according to claim 4, it is characterised in that the upper guide cylinder cylinder The first notch (1-4) of wall end set is U type slot, and what probe sleeve barrel upper end was set supplies acoustic emission probe cable connector The second notch (2-3) stretched out is U type slot.

7. engineering rock mass acoustic emission monitor(ing) and Transmission system according to any claim in claims 1 to 3, its feature exist Couplant is coated with the lower surface that the acoustic emission probe (3) contacts with probe sleeve bottom.

8. engineering rock mass acoustic emission monitor(ing) and Transmission system according to claim 4, it is characterised in that the acoustic emission probe (3) lower surface contacted with probe sleeve bottom is coated with couplant.

9. engineering rock mass acoustic emission monitor(ing) and Transmission system according to claim 5, it is characterised in that the acoustic emission probe (3) lower surface contacted with probe sleeve bottom is coated with couplant.

10. engineering rock mass acoustic emission monitor(ing) and Transmission system according to claim 6, it is characterised in that the acoustic emission probe (3) lower surface contacted with probe sleeve bottom is coated with couplant.