CN207232399U - Fluid pressure type acoustic monitoring system - Google Patents

Abstract

The utility model discloses a kind of fluid pressure type 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, probe sleeve and two sets of piston-cylinder assemblies.The utility model realizes the control to housing and the probe sleeve direction of motion by piston-cylinder assemblies and hydraulic pump, 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

Fluid pressure type 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 fluid pressure type 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 fluid pressure type acoustic 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 acoustic emission probe detection letter Number validity.

Fluid pressure type acoustic monitoring system described in the utility model, including fluid pressure type acoustic emission sensor and ground handling station, The fluid pressure type acoustic emission sensor is used to be installed in the drilling of monitored rock mass, and the monitoring signals received are passed through cable It is transmitted to ground handling station, the computer in ground handling station is handled and given to the monitoring signals from acoustic emission sensor With display, the fluid pressure type acoustic emission sensor is by acoustic emission probe, probe installing mechanism and will be provided with acoustic emission probe Probe installing mechanism is sent to the transport mechanism composition of setting position in drilling, and the quantity of acoustic emission probe is at least one, visits The quantity of head installing mechanism is identical with the quantity of acoustic emission probe, and ground handling station further includes hydraulic pump and fuel tank；The probe Installing mechanism includes housing, probe sleeve, end cap, piston-cylinder assemblies and connection component；The housing is thin for both ends open Wall cylinder, the guide cylinder for being combined with probe sleeve is provided with the endoporus of housing, and the guide cylinder is located at inner walls Bottom and endoporus be through housing wall through hole, center line of its center line perpendicular to housing；The probe sleeve is lower end Closing, the cylinder of upper end opening, endoporus and the acoustic emission probe of probe sleeve are that the endoporus of clearance fit, shape and guide cylinder is Clearance fit, the lower face of probe sleeve is the matched arc surface of drilling radian with monitored rock mass, and barrel upper end is provided with For one or two notch of the cable connector stretching of acoustic emission probe, the outer wall below notch is provided with the shaft shoulder, the notch If two, two notches are axisymmetricly distributed relative to the center line of probe sleeve；The piston-cylinder assemblies are two sets, two sets Piston-cylinder assemblies structure is identical, is respectively symmetrically set including piston, piston rod and oil cylinder, the oil cylinder of two sets of piston-cylinder assemblies Put in the upper left side of inner walls and upper right side, and the axis of two oil cylinders is parallel with the axis of guide cylinder and at grade, Spacing between on the inside of two oil cylinders is more than the size of end cap；The connection component is two sets, and two sets of connection components are separately mounted to The both ends of housing；Acoustic 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 sleeve upper surface and is detachable connection with probe sleeve；The probe sleeve of acoustic emission probe is installed It is placed in housing, its underpart section is inserted into guide cylinder set by housing and its lower end is located at outside housing, the placement side of probe sleeve Position should make the cable connector of acoustic emission probe towards one end of housing；The piston of two sets of piston-cylinder assemblies is separately mounted to each Oil cylinder in, piston rod one end of two sets of piston-cylinder assemblies is affixed with respective piston respectively, the other end respectively with shaft shoulder top The corresponding site in face is connected, and the oil cylinder oil inlet mouth of two sets of piston-cylinder assemblies is connected by petroleum pipeline with hydraulic pump, oil cylinder oil return Mouth is connected by petroleum pipeline with fuel tank；Transport mechanism is connected with the connection component on housing.

Above-mentioned fluid pressure type acoustic monitoring system, connects and is provided with hydralic pressure gauge on the petroleum pipeline of oil cylinder oil inlet mouth and hydraulic pump, In order to monitor the pressure in oil cylinder.

Above-mentioned fluid pressure type acoustic monitoring system, at the top of the oil cylinder can by welding manner or thread connecting mode with Inner walls are connected, and can also be integrated with housing.

Above-mentioned fluid pressure type acoustic monitoring system, by nut and at least, two secondary connecting brackets form connection component, each connection branch One end of frame is uniformly distributed around nut outer wall and is hinged with nut outer wall, and the other end and the housing of each connecting bracket are connected；This Kind of 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 spy Head sleeve bottom is contacted with borehole wall efficient coupling.

Above-mentioned fluid pressure type acoustic monitoring system, the transport mechanism are composed of driven rod, connecting rod and roll wheel assembly； One end centre of the driven rod is equipped with connecting screw hole, and other end centre is equipped with connecting hole and the hole wall of connecting hole It is provided with the first trip bolt, the internal thread type and size and the internal thread of nut in the connection component of the connecting screw hole Type is identical with size；The connecting rod is made of thread segment and column body segment, the connection for driven rod and the connection component And the connection between driven rod, the external screw thread type and size and the internal thread of connecting screw hole set by driven rod of the thread segment Type and size 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 even Fixed after the connecting hole of the column body segment insertion driven rod of extension bar by the first trip bolt；The roll wheel assembly includes roller, U-shaped Installing plate, wheel shaft and roller sleeve, the quantity of roller is two or three, the quantity of U-shaped installing plate and wheel shaft and the number of roller Measure identical, each roller is separately mounted on corresponding wheel shaft, and the both ends of each wheel shaft are separately mounted to the two of corresponding U-shaped installing plate On side plate, make each roller respectively between the biside plate of corresponding U-shaped installing plate, the endoporus of roller sleeve is more than driven rod The second trip bolt is provided with appearance and size and barrel, each U-shaped installing plate is respectively fixedly connected on the outer wall of roller sleeve, works as U When type installing plate is two, the angle between two U-shaped installing plate center lines is 120 °~135 °, when U-shaped installing plate is three When, the center line of the U-shaped installing plate of two of which point-blank, the center line of remaining next U-shaped installing plate and above-mentioned two U The angle of type installing plate center line is 90 °；Every driven rod configures at least a set of roll wheel assembly, the roller sleeve of roll wheel assembly It is sleeved on driven rod and is fixed by the second trip bolt.

Above-mentioned fluid pressure type acoustic monitoring system, in order to send probe installing mechanism to deeper drilling, the quantity of driven rod It can be more, two neighboring driven rod is connected by connecting rod, is by the first trip bolt between driven rod and connecting rod It is connected；During installation and removal, this connection mode need not rotate two neighboring driven rod, on the one hand can keep away Exempt to make to produce friction between probe installing mechanism and drilling because driven rod rotates, on the other hand can be rotated to avoid because of driven rod And the petroleum pipeline for making to be connected with oil cylinder influences to use because of abrasion, in a preferred embodiment, for the ease of the biography of petroleum pipeline It is defeated to be worn with reducing, petroleum pipeline can also be axially fixed with driven rod together with.

Above-mentioned fluid pressure type acoustic monitoring system, for the ease of roll wheel assembly, driven rod and connecting rod three are fixed on one Rise, the first trip bolt and the second trip bolt can be same trip bolt；, can be first by the fastening spiral shell of driven rod during installation Hole is alignd with the fastening screw hole on roller sleeve, recycles trip bolt through both fastening screw holes, and make trip bolt top The firmly column body segment of connecting rod, makes roll wheel assembly, driven rod and connecting rod three be fixed together.

Above-mentioned fluid pressure type acoustic monitoring system, for the ease of the installation of piston-cylinder assemblies, the housing is by two semicircles Cylinder is composed.

Above-mentioned fluid pressure type acoustic monitoring system, the cable for the ease of will be connected with acoustic emission probe are drawn, the probe The notch stretched out for acoustic emission probe cable connector that sleeve wall upper end is set is U type slot, and the width of U type slot is bigger In the diameter of acoustic emission probe cable connector.

Above-mentioned fluid pressure type acoustic monitoring system, can be in sound in order to further improve acoustic emission probe signal transmission effect Lower face that transmitting probe is contacted with probe sleeve bottom coating couplant, so that acoustic emission probe lower face and probe sleeve Bottom effectively contacts；The couplant is butter, vaseline etc..

Above-mentioned fluid pressure type acoustic monitoring system, the quantity and acoustic emission probe quantity phase of acoustic emission probe probe installing mechanism 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 the assembly of acoustic emission probe and installing mechanism of popping one's head in can move freely in drilling； After the assembly of acoustic emission probe and probe installing mechanism is sent to the precalculated position of drilling, under the action of hydraulic pump, warp The pressure oil that petroleum pipeline enters oil cylinder promotes the downward initial point movement of piston, so that piston rod promotes probe sleeve away from shell The direction movement of body, realizes that case top and probe sleeve lower face are in close contact with drill hole inner wall respectively, makes acoustic emission probe Monitoring state is in the assembly for installing mechanism of popping one's head in；When monitoring end needs to recycle acoustic emission probe, in the work 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 end Face is separated with drill hole inner wall, and the assembly of acoustic emission probe and probe installing mechanism is gradually restored to original state, in order to sound The recycling of transmitting probe.

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

1st, fluid pressure type acoustic monitoring system described in the utility model, the probe installing mechanism in its acoustic emission sensor pass through Piston-cylinder assemblies and hydraulic pump realize the control to housing and the probe sleeve direction of motion, so that solving acoustic emission probe has Effect installation and the problem of coupling；Acoustic emission probe with pop one's head in installing mechanism assembly in original state size be smaller than drilling 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 piston downward Initial point moves, so that piston rod promotes probe sleeve to be moved away from the direction of housing, realizes case top and probe sheath Cylinder lower face is in close contact with drill hole inner wall respectively, so as to ensure the efficient coupling of acoustic emission probe and borehole wall；Sound emission The monitoring signals received are transmitted to ground handling station by sensor, and by the computer at ground handling station to monitoring signals into Row display.

2nd, fluid pressure type acoustic monitoring system described in the utility model, can monitor the pressure in oil cylinder, if hair by hydralic pressure gauge Existing rock mass deformation causes pressure to reduce, and hydraulic pump supplement pressure can be utilized, so that acoustic emission probe and borehole wall are all the time In effective couple state.

3rd, fluid pressure type acoustic monitoring system described in the utility model, after monitoring, under the action of hydraulic pump, through defeated The pressure oil that oil pipe enters oil cylinder promotes the upward initial point movement of piston, under piston rod drive, probe sleeve lower face and drilling Inner wall separates, and probe installing mechanism is gradually restored to original state, easy to which sensor is taken out from drilling, realizes that sound emission passes The recycling and reuse of sensor, save monitoring cost.

4th, fluid pressure type acoustic monitoring system described in the utility model, case top and probe used by acoustic emission sensor Sleeve lower face is the arc coupling surface being adapted to borehole wall, it is ensured that the coupling effect of acoustic emission probe and borehole wall, from And strengthen the monitoring to engineering rock (body) stability and rock burst dynamic disaster and forecast reliability.

5th, fluid pressure type acoustic monitoring system described in the utility model, the driven rod of its transport mechanism can by more connections and Into not only easy for installation, the influence also from drilling depth and orientation, has the extensive scope of application.

6th, fluid pressure type acoustic monitoring system described in the utility model, transport mechanism is designed with used by acoustic emission sensor Roll wheel assembly is, it can be achieved that roller transfer in installation process, so as to reduce the frictional force shadow of borehole wall in installation transmit process Ring, 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, fluid pressure type acoustic monitoring system described in the utility model, acoustic emission sensor also have it is simple in structure, install, tear open The characteristics of facilitating is unloaded, reaching reduces labor intensity, can save a large amount of human costs.

9th, fluid pressure type acoustic monitoring system described in the utility model, in order to meet different demands, acoustic emission sensor can be with Multiple probe installing mechanisms are connected by multiple driven rods and arrange that multiple sound emissions is visited in same drilling to realize The purpose of head, makes each acoustic emission probe end face to be determined respectively according to monitoring needs, so as to improve steady to engineering rock (body) Qualitative and rock burst dynamic disaster monitoring efficiency.

Brief description of the drawings

Fig. 1 is the structure diagram of fluid pressure type acoustic monitoring system described in the utility model, and probe sleeve is in drilling Hole wall direction motion state.

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

Fig. 3 is the combination of acoustic emission probe and probe installing mechanism in fluid pressure type acoustic monitoring system described in the utility model Schematic diagram figure.

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 schematic diagram of acoustic emission probe in fluid pressure type acoustic monitoring system described in the utility model.

Fig. 8 is the top view of Fig. 7.

Fig. 9 is the structure diagram of probe sleeve in probe installing mechanism.

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 driven rod in transport mechanism.

Figure 12 is the structure diagram of connecting 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, 1-1, semicylindrical body, 1-2, connection sheet, 2, probe sleeve, 2-1, cylinder, 2-2, end cap, 2-3, The shaft shoulder, 2-4, notch, 3, acoustic emission probe, 3-1, cable connector, 4, piston-cylinder assemblies, 4-1, oil cylinder, 4-2, piston rod, 4- 3rd, piston, 5, guide cylinder, the 6, first petroleum pipeline, the 7, second petroleum pipeline, 8, hydraulic pump, 9, fuel tank, 10, connecting bracket, 11, spiral shell Mother, 12, driven rod, 12-1, connecting hole, 12-2, connecting screw hole, 12-3, the first trip bolt, 13, roll wheel assembly, 13-1, rolling Wheel, 13-2, U-shaped installing plate, 13-3, wheel shaft, 13-4, roller sleeve, 13-5, the second trip bolt, 14, connecting rod, 14-1, spiral shell Line section, 14-2, column body segment, 15, ground handling station, 16, computer, 17, hydralic pressure gauge.

Embodiment

By the following examples and the technical solution with reference to attached drawing to fluid pressure type acoustic monitoring system described in the utility model Carrying out clear, complete description, it is clear that described embodiment is only the part of the embodiment of the utility model, rather than entirely The embodiment in portion.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work Under the premise of obtained all other embodiment, belong to the scope that the utility model is protected.

Fluid pressure type acoustic monitoring system provided in this embodiment, as shown in Figures 1 and 2, including acoustic emission sensor and ground Face work station 15, acoustic emission sensor are used to be installed in the drilling of monitored rock mass, and the monitoring signals received are passed through line Cable is transmitted to ground handling station, and the computer 16 in ground handling station handles the monitoring signals from acoustic emission sensor And shown, acoustic emission sensor is pacified by acoustic emission probe 3, probe installing mechanism and by the probe for being provided with acoustic emission probe Mounting mechanism is sent to the transport mechanism composition of setting position in drilling, and acoustic emission probe 3 and the quantity of probe installing mechanism are One, ground handling station 15 further includes hydraulic pump 8 and fuel tank 9.

As shown in Figure 7, Figure 8, 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 Figures 5 and 6, above-mentioned housing 1 is the cylinder of both ends open, passes through connection by two semicylindrical body 1-1 Piece 1-2 is composed, and the guide cylinder 5 for being combined with probe sleeve 2 is provided with its endoporus, and the guide cylinder 5 is located at housing The bottom of inner wall and endoporus are the through hole through housing wall, center line of its center line perpendicular to housing.

As shown in figure 9, 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 2-4, the outer wall below notch are provided with shaft shoulder 2-3.

As shown in Fig. 3, Fig. 4 and Fig. 9, above-mentioned piston-cylinder assemblies are two sets, and two sets of piston-cylinder assemblies structures are identical, Including piston 4-3, piston rod 4-2 and oil cylinder 4-1, the oil cylinder 4-1 of two sets of piston-cylinder assemblies is symmetrically arranged in housing The upper left side and upper right side of wall, and the axis of two oil cylinders is parallel with the axis of guide cylinder and at grade, in two oil cylinder 4-1 Spacing between side is more than the size of end cap 2-2.The piston 4-3 often covered in piston component is located inside oil cylinder 4-1, piston rod 4- 2 one end is connected through a screw thread with piston 4-3, and the other end of piston rod 4-2 stretches out oil cylinder 4-1；Oil cylinder 4-1 tops and housing 1 Inner wall is connected by welding, and oil cylinder 4-1 upper designs have the first hydraulic fluid port being connected with the first petroleum pipeline 6, the design of oil cylinder 4-1 lower parts There is the second hydraulic fluid port connected with the second petroleum pipeline 7, when the first hydraulic fluid port is oil inlet, the second hydraulic fluid port is then oil return opening, when second When 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 above-mentioned acoustic emission sensor is：Acoustic emission probe 3 is loaded into probe sleeve In 2, its one end coated with butter is contacted with probe sleeve bottom, its cable connector 3-1 sets U-shaped from probe sleeve barrel Notch 2-4 stretches out；End cap 2-2 is covered in 2 upper surface of probe sleeve, and is fixed end cap 2-2 with probe sleeve by screw；Peace Probe sleeve 2 equipped with acoustic emission 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；Two sets The piston 4-3 of piston-cylinder assemblies is separately mounted in respective oil cylinder, piston rod 4-2 one end point of two sets of piston-cylinder assemblies Not affixed with respective piston 4-3, corresponding site of the other end respectively with shaft shoulder top surface is connected, the first hydraulic fluid port of two oil cylinder 4-1 Connected by the first petroleum pipeline 6 with hydraulic pump 8 or fuel tank 9, the second hydraulic fluid port of two oil cylinder 4-1 passes through the second petroleum pipeline 7 and fuel tank 9 Or hydraulic pump 8 connects, hydraulic pump 8 is connected by petroleum pipeline with fuel tank 9, when the first hydraulic fluid port is oil inlet, the second hydraulic fluid port is oil return During mouth, the ground pipeline of the first petroleum pipeline 6 is provided with hydralic pressure gauge 17；Rear connecting rod column body segment 14-2 insertion transmission lever attachment hole Both are simultaneously connected by 12-1 by the first trip bolt 12-3, and roll wheel assembly roller sleeve 13-4 is sleeved on driven rod 12 simultaneously Both are connected by the second trip bolt 13-5, then connecting rod thread segment 14-1 is combined with nut 11, that is, realizes probe peace Mounting mechanism is connected with transport mechanism.

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 two oil cylinder 4-1 is connected with fuel tank 9, by the second petroleum pipeline 7 by the second hydraulic fluid port and hydraulic pump of two oil cylinder 4-1 8 connections, open hydraulic pump, and two-piston 4-3 moves to initial point position under the action of pressure oil, at this time acoustic emission probe 3 with The assembly overall dimensions of probe installing mechanism are less than bore size, then by the group of acoustic emission probe 3 and probe installing mechanism Zoarium is put into drilling, and operates connected transport mechanism, and acoustic emission probe 3 and the assembly for installing mechanism of popping one's head in are sent The position monitored to needs, 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 two oil cylinder 4-1 with hydraulic pump 8, by the second petroleum pipeline 7 by the second hydraulic fluid port of two oil cylinders Being connected with fuel tank 9, open hydraulic pump, two-piston 4-3 moves to lower initial point position under the action of pressure oil from upper initial point position, In the process, two-piston bar 4-2 drives probe sleeve 2 to be moved to away from 1 direction of housing, so that the top of housing 1 and spy Headgear cylinder lower face is in close contact with borehole wall respectively, realizes the efficient coupling of acoustic emission probe and borehole wall；Sent out with sound Penetrate the connected cable of probe 3 and extend to earth's surface, and be connected with the computer 16 at ground handling station, acoustic emission probe 3 can be right Rock (body) situation in engineering construction is monitored, the computer by monitoring signals by cable transmission to ground handling station 16, monitoring signals are handled by computer and give real-time display.The pressure in oil cylinder can be detected by hydralic pressure gauge 17 Power changes, and after finding that rock mass deformation causes pressure to reduce, pressure can be supplemented into oil cylinder using hydraulic pump, so that guarantee sound Transmitting passes the coupling state that probe is in effect with palisades all the time.

As shown in Fig. 2 and Figure 16, the reclaimer operation of coupling pressure rock rupture acoustic monitoring system：When monitoring process terminates Afterwards, the first hydraulic fluid port of two oil cylinder 4-1 is connected with fuel tank 9 by the first petroleum pipeline 6, by the second petroleum pipeline 7 by two oil cylinder 4-1 The second hydraulic fluid port connected with hydraulic pump 8, open hydraulic pump, two-piston 4-3 moves under the action of pressure oil from lower initial point Initial point position, in the process, two-piston bar drive probe sleeve to be moved in the same direction with piston, make probe sleeve lower face and drilling Inner wall separates and makes acoustic emission probe 3 and the size when overall dimensions of the assembly for installing mechanism of popping one's head in return to installation, so After operate transport mechanism, acoustic emission sensor is pulled out from drilling so that acoustic emission probe and its installing mechanism can be returned Receive and recycle.

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 (10)

1. a kind of fluid pressure type acoustic monitoring system, including fluid pressure type acoustic emission sensor and ground handling station (15), the hydraulic pressure Formula 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 Face 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 fluid pressure type acoustic emission sensor is by acoustic emission probe (3), probe installing mechanism and will install sound hair The probe installing mechanism for penetrating probe is sent to the transport mechanism composition of setting position in drilling, and the quantity of acoustic emission probe (3) is extremely It it is less 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 (15) further include hydraulic pump (8) and fuel tank (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 (2-4) gone out, the outer wall below notch are provided with the shaft shoulder (2-3), the notch (2-4) if two, Two notches are axisymmetricly distributed relative to the center line of probe sleeve；The piston-cylinder assemblies are two sets, two sets of piston oil-cylinders Modular construction is identical, including piston (4-3), piston rod (4-2) and oil cylinder (4-1), the oil cylinder (4- of two sets of piston-cylinder assemblies 1) be symmetrically arranged at the upper left side and upper right side of inner walls, and the axis of two oil cylinders it is parallel with the axis of guide cylinder and On same plane, the spacing between two oil cylinders (4-1) inner side is more than the size of end cap (2-2)；The connection component be two sets, two Set connection component 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 (2-4) 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； The piston (4-3) of two sets of piston-cylinder assemblies is separately mounted in respective oil cylinder, the piston rod (4- of two sets of piston-cylinder assemblies 2) one end is affixed with respective piston (4-3) respectively, and corresponding site of the other end respectively with shaft shoulder top surface is connected, two sets of piston oils The oil cylinder oil inlet mouth of cylinder component is connected by petroleum pipeline with hydraulic pump (8), and oil cylinder oil return opening is connected by petroleum pipeline and fuel tank (9) It is logical；Transport mechanism is connected with the connection component on housing.

2. fluid pressure type 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 around nut (11) outer wall and and nut outer wall It is hinged, the other end and the housing (1) of each connecting bracket are connected.

3. fluid pressure type 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 It is on bar (12) and fixed by the second trip bolt (13-5).

4. the fluid pressure type acoustic monitoring system according to any claim in claims 1 to 3, it is characterised in that the housing (1) it is composed of two semicylindrical bodies (1-1).

5. the fluid pressure type acoustic monitoring system according to any claim in claims 1 to 3, it is characterised in that the probe The notch (2-4) stretched out for acoustic emission probe cable connector that sleeve wall upper end is set is U type slot.

6. fluid pressure type acoustic monitoring system according to claim 4, it is characterised in that the probe sleeve barrel upper end is set For acoustic emission probe cable connector stretch out notch (2-4) be U type slot.

7. the fluid pressure type acoustic monitoring system according to any claim in claims 1 to 3, it is characterised in that the sound hair Penetrate the lower face that probe (3) is contacted with probe sleeve bottom and be coated with couplant.

8. fluid pressure type acoustic monitoring system according to claim 4, it is characterised in that the acoustic emission probe (3) and probe sheath The lower face of cylinder bottom contact is coated with couplant.

9. fluid pressure type acoustic monitoring system according to claim 5, it is characterised in that the acoustic emission probe (3) and probe sheath The lower face of cylinder bottom contact is coated with couplant.

10. fluid pressure type acoustic monitoring system according to claim 6, it is characterised in that the acoustic emission probe (3) and probe The lower face of sleeve bottom contact is coated with couplant.