CN113945963B - Filling body micro-seismic monitoring and mounting device and application method - Google Patents
Filling body micro-seismic monitoring and mounting device and application method Download PDFInfo
- Publication number
- CN113945963B CN113945963B CN202111519620.2A CN202111519620A CN113945963B CN 113945963 B CN113945963 B CN 113945963B CN 202111519620 A CN202111519620 A CN 202111519620A CN 113945963 B CN113945963 B CN 113945963B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- pressing plate
- plate
- bolt
- hoop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 13
- 238000001125 extrusion Methods 0.000 claims abstract description 9
- 238000005065 mining Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 74
- 239000004677 Nylon Substances 0.000 claims description 28
- 229920001778 nylon Polymers 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 12
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 12
- 241001330002 Bambuseae Species 0.000 abstract description 12
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 12
- 239000011425 bamboo Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000945 filler Substances 0.000 description 8
- 239000011435 rock Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Geophysics (AREA)
- Acoustics & Sound (AREA)
- Medicinal Chemistry (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention provides a filling body micro-seismic monitoring installation device and an application method, and belongs to the technical field of mining. This installation device includes the pore-forming sleeve pipe, carry bearing mechanism and extrusion fixed establishment, carry bearing mechanism including a hoop section of thick bamboo, the collet, control connecting rod and company's board, extrusion fixed establishment includes the holding plate, the slip voussoir, the activity clamp plate, the voussoir connecting rod, the drill way layer board, the tractive bolt, haulage rope and pressure sensor, the pore-forming sleeve pipe is outside at whole device, the microseism sensor is fixed in a hoop section of thick bamboo, hoop section of thick bamboo bottom is arranged in on the collet, hoop section of thick bamboo both sides face sets up holding plate and activity clamp plate respectively, the collet is through linking board connection control connecting rod, the haulage rope is connected to the activity clamp plate, set up the slip voussoir between activity clamp plate and the hoop section of thick bamboo, the voussoir connecting rod is connected to the slip voussoir, the voussoir connecting rod passes through the tractive bolt and is fixed with the drill way layer board, the control connecting rod other end pushes up on the drill way layer board, install pressure sensor on the activity clamp plate. The device can on-line monitoring, simple structure, and the installation is rapid.
Description
Technical Field
The invention relates to the technical field of mining, in particular to a filling body micro-seismic monitoring and mounting device and an application method.
Background
As the mining depth increases, earth pressure disasters become more serious and become one of the main hazard sources for deep mining. In order to effectively control ground pressure disasters, effective monitoring is one of key foundations. The microseismic monitoring technology is an advanced technology for directly predicting the instability of a large engineering rock mass, and has become a main means for monitoring mine ground pressure by capturing a fracture event in the rock mass and analyzing the damage position and a potential damage area of the rock mass.
At present, microseismic monitoring is mainly applied to stability monitoring of ore rocks, a successful case used in filling body monitoring is not found yet, the diameter of a microseismic sensor is usually 40-60 mm, the diameter of a required drill hole is at least 50mm, but because a filling body is softer, an effective drill hole is difficult to form in the filling body, the microseismic monitoring sensor can only be arranged near a filling retaining wall, and effective monitoring on the filling body cannot be realized.
In microseismic monitoring, the installation of a sensor is one of key links, and the effectiveness and the accuracy of data acquisition are directly related. In addition, microseismic sensors typically require a large number, which is one of the major costs of microseismic monitoring. At present, resin or cement mortar is mostly adopted in a main installation method of the sensor, the sensor is directly solidified in a hole, and solidified resin and cement are filled between the sensor and surrounding rocks to realize the coupling of the sensor.
The conventional microseism technology is applied to filling body monitoring, so that the success cases are few, the sensor cannot be effectively installed due to the fact that drilling is difficult due to the particularity of the filling body, and even if the sensor is installed, the sensor cannot be recycled due to the fact that the filling body is easy to collapse, and the monitoring cost is improved. At present, the mounting technology of the microseismic monitoring and sensor mainly focuses on the field of rocks, and a filling body is not considered.
Disclosure of Invention
The invention provides a filling body micro-seismic monitoring installation device and an application method, aiming at solving the problems that the existing filling body can not carry out effective micro-seismic monitoring, and a filling body micro-seismic monitoring sensor is difficult to recover.
In order to solve the technical problems, the invention provides the following technical scheme:
a filling body microseismic monitoring and mounting device comprises a pore-forming sleeve, a conveying and supporting mechanism and an extrusion fixing mechanism;
the conveying and supporting mechanism comprises a hoop cylinder, a bottom support, a control connecting rod and a connecting plate; the extrusion fixing mechanism comprises a fixed pressing plate, a sliding wedge block, a movable pressing plate, a wedge block connecting rod, an orifice supporting plate, a traction bolt, a traction rope and a pressure sensor; the pore-forming sleeve is arranged at the outermost part of the whole device;
the microseism sensor is fixed in the hoop barrel, the bottom of the hoop barrel is arranged on the bottom support, two side faces of the hoop barrel are respectively provided with a fixed pressing plate and a movable pressing plate, the fixed pressing plate is connected with the hoop barrel through a fixed bolt, the bottom support is connected with a control connecting rod through a connecting plate, the movable pressing plate is connected with a traction rope, a sliding wedge block is arranged between the movable pressing plate and the hoop barrel and connected with a wedge block connecting rod, the wedge block connecting rod is fixed with the orifice supporting plate through a traction bolt, the other end of the control connecting rod is supported on the orifice supporting plate, and the movable pressing plate is provided with a pressure sensor.
The section of the pore-forming sleeve is circular, the diameter of the pore-forming sleeve is 80-100 mm, the pore-forming sleeve is formed by processing thin-wall steel plates, one end of the pore-forming sleeve is sealed, and the other end of the pore-forming sleeve is open.
Hoop section of thick bamboo one side opening, and opening one side evenly arranges fastening bolt along length direction, sets up an arc tongue respectively with the adjacent both sides in opening side, and hoop section of thick bamboo length is greater than microseismic sensor 60~100mm, and the offside of hoop section of thick bamboo trompil one side is at four circular screws of 15~25mm department symmetrical arrangement apart from both ends.
The collet adopts the preparation of the thick steel sheet of 2~4mm, the cross-section is double-deck arc, upper arc radian is unanimous with the hoop section of thick bamboo, the camber angle is 60~ 80, lower floor's arc radian is unanimous with the pore-forming sleeve pipe, the camber angle is 60~ 80, two-layer arc is connected by three webs in the middle of and both sides, two-layer arc interval is 8~28mm, collet length is the same with the hoop section of thick bamboo, the collet both ends adopt the steel sheet closure with the specification, the shape is unanimous with the arc, and exceed upper arc 20~30mm, web bilateral symmetry sets up two connection screws in the middle of following respectively at two blind ends, be used for erection bolt and hoop section of thick bamboo fixed.
The control connecting rod is formed by splicing multiple sections, the length of each section is 1.5-2.0 m, the whole body of the control connecting rod is threaded, the diameter is 20-25 mm, and the control connecting rod is connected with the connecting plate through a connecting rod connecting port on the connecting plate.
The fixed pressing plate is of an arc structure, the radian is the same as that of the pore-forming sleeve, the arc angle is 80-100 degrees, the length of the fixed pressing plate is the same as that of the microseismic sensor, a fixed pressing plate groove is arranged in the center of the arc inside the fixed pressing plate and used for being matched with the convex groove of the hoop barrel, and three fixing bolt screw holes are uniformly arranged in the fixed pressing plate groove along the length direction.
The movable pressing plate is of an arc-shaped structure, the length of the movable pressing plate is the same as that of the micro-seismic sensor, a nylon bolt screw hole and a traction rope hole are formed in the center of the inner portion of the movable pressing plate along the length direction, and a traction rope penetrates through the traction rope hole and is fixed.
One surface of the sliding wedge block, which is contacted with the hoop barrel, is arc-shaped, and the middle part of the arc is provided with a sliding wedge block groove which is matched with a convex groove on the hoop barrel; the thickness of the upper part and the thickness of the surface, in contact with the movable pressing plate, of the sliding wedge block are uniformly changed, the thickness of the thickest part is 10-20 mm, and the thickness of the thinnest part is 2-10 mm; and arranging a sliding wedge screw hole at the position of 4-13 mm of the thickness of the sliding wedge, and fixing the sliding wedge screw hole through a nylon screw after aligning the sliding wedge screw hole with a nylon bolt screw hole on the movable pressing plate.
The wedge connecting rod is a full threaded rod and is fixed on the orifice supporting plate through a traction bolt, the orifice supporting plate is rectangular, a rectangular notch is arranged on one side of the rectangle, and four orifice supporting plate screw holes are respectively arranged at four corners of the orifice supporting plate.
The mounting device is suitable for mounting the microseismic sensor with the diameter of 40-60 mm, and the specific application method comprises the following steps:
s1: after mining is finished and before filling is started, cleaning a site, arranging hole-forming sleeves with corresponding lengths in a stope according to monitoring requirements, wherein the hole-forming sleeves can be horizontally arranged, obliquely arranged and vertically arranged, one end of each hole-forming sleeve in the stope is closed, and the other end of each hole-forming sleeve is led out from a filling retaining wall;
s2: the fixed pressing plate is connected with the hoop barrel through 3 fixing bolts to ensure close contact; the movable pressing plate, the sliding wedge block and the hoop barrel convex groove are connected by nylon bolts, so that the movable pressing plate, the sliding wedge block and the hoop barrel convex groove are prevented from falling; the collet and the hoop barrel are tightly connected through a bolt; the microseism sensor is placed in the hoop barrel, the hoop barrel is tightly contacted with the sensor through the fastening bolt, and the microseism sensor is prevented from sliding; the connecting plate is fixedly connected with the bottom support through a bolt; arranging a pressure sensor at the center of the back of the movable press plate, wherein the length of a lead of the pressure sensor is greater than that of the pore-forming sleeve, and a nylon hauling rope passes through a nylon bolt screw hole at the lower part of the movable press plate and is knotted and fixed, and the length of the nylon hauling rope is greater than that of the pore-forming sleeve;
s3: connecting the control connecting rod and the wedge connecting rod section by section respectively, and meanwhile, slowly sending the micro-vibration sensor into the hole forming sleeve until the micro-vibration sensor reaches a preset position; at the moment, the control connecting rod is flush with the orifice and stops lengthening, and the wedge connecting rod is 0.5-1.0 mm shorter than the control connecting rod; sequentially penetrating one side of the wedge connecting rod without the sleeve through a traction bolt and an orifice supporting plate, continuously lengthening a section of wedge connecting rod, and fixing the orifice supporting plate on the filling retaining wall through an expansion bolt;
s4: connecting a pressure sensor wire, adopting a wrench to rotate a traction bolt, gradually drawing a sliding wedge block outwards by a wedge block connecting rod under the rotation action of the bolt, breaking a nylon screw under the action of shearing force, continuously drawing the wedge block outwards, paying attention to the change of a resistance value measured by a pressure sensor in real time in the process of drawing outwards, and stopping drawing when the resistance value is less than 10K omega; at the moment, after the equipment is installed, connecting a microseismic sensing lead for monitoring;
s5: after monitoring is finished, the bolt is pulled in a reverse rotation mode, the wedge connecting rod drives the sliding wedge to move inwards, and when the resistance value of the pressure sensor becomes infinite, rotation is stopped; and (3) removing the orifice supporting plate and the traction bolt, firstly taking out the movable pressing plate through the traction rope, then sequentially taking out the sliding wedge block and the microseismic sensor, and finally removing the hoop barrel, the fixed pressing plate and the bottom support.
The technical scheme of the invention has the following beneficial effects:
in the above scheme, the implementation on-line monitoring of the internal fracture of the filling body can be realized, the assembly is flexible, the structure is simple, and the installation is rapid. Except the hole-forming sleeve, other parts can be recycled and repeatedly applied, and the cost is reduced. The monitoring depth is large, the installation at any angle can be realized, and the reliability of the monitoring result is high.
Drawings
FIG. 1 is a schematic view of the arrangement of the filling body microseismic monitoring installation device of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic structural view of a bottom bracket of the filling body microseismic monitoring and mounting device of the present invention;
FIG. 4 is a schematic cross-sectional view taken along line B-B in FIG. 3;
FIG. 5 is a schematic structural view of a hoop barrel in the filling body microseismic monitoring installation device of the present invention;
FIG. 6 is a cross-sectional view of a ferrule barrel in the filler microseismic monitoring and mounting apparatus of the present invention;
FIG. 7 is a schematic view of a connecting plate structure of the filling body microseismic monitoring and mounting device of the present invention;
FIG. 8 is a schematic view of an orifice plate structure in the filler microseismic monitoring mounting device of the present invention;
FIG. 9 is a plan view of the movable platen in the filler microseismic monitoring mounting device of the present invention;
FIG. 10 is a plan view of a sliding wedge in the filler microseismic monitoring mount of the present invention;
FIG. 11 is a plan view of a stationary platen in the filler microseismic monitoring mounting apparatus of the present invention;
FIG. 12 is a cross-sectional view of a movable platen in the filler microseismic monitoring mounting device of the present invention;
FIG. 13 is a cross-sectional view of a sliding wedge in the filler microseismic monitoring mount of the present invention;
FIG. 14 is a cross-sectional view of a stationary platen in the filler microseismic monitoring mounting device of the present invention.
Wherein: 1-forming a hole sleeve; 2-fixing the pressing plate; 3-fixing the bolt; 4-a hoop barrel; 5-bottom support; 6-connecting the plates; 7-control link; 8-connecting bolts; 9-orifice pallet; 10-full threaded rod; 11-a draw bolt; 12-a wedge link; 13-a hauling rope; 14-pressure sensor leads; 15-a movable platen; 16-a pressure sensor; 17-nylon screws; 18-sliding wedges; 19-microseismic sensors; 20-fastening bolts; 21-a tongue; 22-round screw hole; 23-connecting screw holes; 24-connecting rod connecting port; 25-connecting plate threaded holes; 26-fixing the pressure plate groove; 27-fixing bolt screw holes; 28-nylon bolt screw holes; 29-traction rope holes; 30-sliding wedge groove; 31-sliding wedge screw hole; 32-rectangular notches; 33-orifice pallet screw hole.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a filling body micro-seismic monitoring and mounting device and an application method thereof.
The device comprises a pore-forming sleeve 1, a conveying and supporting mechanism and an extrusion fixing mechanism, wherein the conveying and supporting mechanism comprises a hoop barrel 4, a bottom support 5, a control connecting rod 7 and a connecting plate 6, and the extrusion fixing mechanism comprises a fixed pressing plate 2, a sliding wedge 18, a movable pressing plate 15, a wedge connecting rod 12, an orifice supporting plate 9, a traction bolt 11, a traction rope 13 and a pressure sensor 16.
As shown in figures 1 and 2, the pore-forming sleeve 1 is outermost in the whole device, the microseismic sensor 19 is fixed in the hoop cylinder 4, the bottom of the hoop cylinder 4 is arranged on the bottom support 5, two side surfaces of the hoop cylinder 4 are respectively provided with the fixed pressing plate 2 and the movable pressing plate 15, the fixed pressing plate 2 is connected with the hoop cylinder 4 through the fixed bolt 3, the bottom support 5 is connected with the control connecting rod 7 through the connecting plate 6, the movable pressing plate 15 is connected with the traction rope 13, the sliding wedge block 18 is arranged between the movable pressing plate 15 and the hoop cylinder 4, the sliding wedge block 18 is connected with the wedge block connecting rod 12, the wedge block connecting rod 12 is fixed with the orifice supporting plate 9 through the traction bolt 11, the other end of the control connecting rod 7 is propped against the orifice supporting plate 9, and the movable pressing plate 15 is provided with the pressure sensor 16.
The pore-forming sleeve 1 is mainly used for forming a monitoring drilling channel in a filling body, the cross section of the pore-forming sleeve is circular, the diameter of the pore-forming sleeve is 80-100 mm, the pore-forming sleeve is formed by processing a thin-wall steel plate, one end of the pore-forming sleeve is sealed, the other end of the pore-forming sleeve is open, and the thickness of the steel plate is 1-3 mm. According to the sampling design requirement, the sampling device can be intercepted into different lengths, one end of the sampling device is sealed, and the other end of the sampling device is opened. The inside should be polished, guarantee the smooth level and smooth of inboard.
The conveying and supporting mechanism is used for fixing the micro-seismic sensor, conveying the micro-seismic sensor to a designed monitoring depth and providing a certain supporting force. The specific requirements of each part are as follows:
the main function of the collar 4 is to hold the sensor inside and ensure stability. As shown in figures 5 and 6, the upper part of the cross section of the special-shaped cross section is provided with an opening with an adjustable diameter, one side of the cross section is provided with an opening, 3 fastening bolts 20 are uniformly arranged on one side of the opening along the length direction, two sides adjacent to the opening side are respectively provided with an arc convex groove 21, the width of the groove opening is 5-10 mm, and the depth of the groove is 5-10 mm. The hoop barrel 4 is made of thin-wall steel plates, the wall thickness is 0.5-2 mm, the length of the hoop barrel is 60-100 mm larger than that of the microseismic sensor 19, four circular screw holes 22 are symmetrically arranged at the position 15-25 mm away from two end parts of the opposite side of the open hole of the hoop barrel 4, and the diameter of each circular screw hole 22 is 10-15 mm.
The main function of the base support 5 is to connect the hoop barrel 4 and the control link 7 and to send the microseismic sensor 19 to a predetermined position. As shown in fig. 3 and 4, collet 5 adopts the preparation of 2~4mm thick steel sheet, the cross-section is double-deck arc, upper arc radian is unanimous with hoop 4, the camber angle is 60~ 80, lower floor's arc radian is unanimous with pore-forming sleeve pipe 1, the camber angle is 60~ 80, two-layer arc is connected by three webs in the middle of and both sides, two-layer arc interval is 8~28mm, collet 5 length is the same with hoop 4, arrange the screw of equidimension in hoop screw open-ended same position. 5 both ends of collet adopt the steel sheet of the same specification to seal, and the shape is unanimous with the arc, and exceeds upper arc 20~30mm, sets up two connection screw holes 23 respectively along middle web bilateral symmetry at two blind ends for it is fixed with hoop section of thick bamboo 4 to install connecting bolt 8. The diameter of the connecting screw hole 23 is 10-15 mm.
The control connecting rod 7 is mainly used for being connected with the bottom support and providing conveying power and supporting force. The control connecting rod is made of light materials, such as hard plastics, nylon or aluminum alloy. The control connecting rod is formed by splicing multiple sections, the length of each section is 1.5-2.0 m, the whole thread of the control connecting rod 7 is 20-25 mm in diameter, and the control connecting rod 7 is connected with the connecting plate 6 through a connecting rod connecting port 24 on the connecting plate 6. One end of the control connecting rod is provided with a threaded sleeve, an internal thread buckle of the sleeve is matched with the screw, and the depth of the sleeve is 30-50 mm.
The main function of the connecting plate 6 is to connect the control link 7 with the shoe 5. As shown in FIG. 7, the connecting plate 6 is rectangular and made of steel plate, and has a thickness of 5 mm-10 mm, a length of 50 mm-60 mm and a width of 30-35 mm. The center of the connecting plate 6 is provided with a screw hole with threads as a connecting rod connecting port 24, a turnbuckle is matched with the control connecting rod, two connecting plate threaded holes 25 with the diameter of 10-15 mm are respectively arranged at the same positions of the two sides and the opening position of one section of threads of the bottom support.
The extrusion strengthening mechanism is used for fixing the microseismic sensor 19 in the hole and enabling the sensor to be in close contact with the hole wall to generate a coupling contact effect, so that the accuracy of data receiving of the sensor is ensured. The specific requirements of each part are as follows:
the fixed platen 2 mainly functions as a coupling between the sensor and the aperture wall, transmitting signals, and balancing dimensions. As shown in fig. 11 and 14, the arc-shaped structure is an arc-shaped structure, the thickness of the arc-shaped structure ranges from 8mm to 28mm, the radian of the arc-shaped structure is the same as that of the hole-forming sleeve 1, the arc angle ranges from 80 degrees to 100 degrees, the length of the fixed pressing plate 2 is the same as that of the microseismic sensor 19, and a fixed pressing plate groove 26 is arranged in the arc-shaped center of the fixed pressing plate 2 and is used for being matched with a convex groove 21 of the hoop barrel, so that the arc-shaped fixed pressing plate can be in close contact with the hoop barrel 4. And evenly set up three fixing bolt screw 27 along length direction in the fixed pressing plate recess 26, diameter 3~7mm, arc fixed pressing plate back screw opening part increases the deepening to place the nut.
The movable pressing plate 15 is of an arc-shaped structure, is identical to the fixed pressing plate 2, has the thickness of 4-13 mm, and has the length identical to that of the microseismic sensor 19, as shown in fig. 9 and 12, a nylon bolt screw hole 28 and a traction rope hole 29 are arranged at the center of the inside of the movable pressing plate 15 along the length direction, the diameter of the nylon bolt screw hole 28 is 1-3 mm, and the traction rope 13 penetrates through and is fixed in the traction rope hole 29.
A sliding wedge 18 is located between the movable platen 15 and the collar 4 and functions to provide or relieve pressure by up and down movement of the wedge. As shown in fig. 10 and 13, the surface of the sliding wedge 18 contacting the collar 4 is arc-shaped, and the middle part of the arc is provided with a sliding wedge groove 30 which is matched with the convex groove 21 on the collar 4 to ensure that the two can be tightly contacted. The thickness of the upper part and the thickness of the lower part of one surface, which is in contact with the movable pressing plate 15, of the sliding wedge block 18 are uniformly changed, the thickness of the thickest part is 10-20 mm, the thickness of the thinnest part is 2-10 mm, and the sum of the thickness of the sliding wedge block and the sizes of the movable pressing plate, the fixed pressing plate and the hoop barrel is larger than the diameter of the pore-forming sleeve. A sliding wedge bolt hole 31 is arranged at the position of 4-13 mm of the thickness of the sliding wedge 18, and the sliding wedge bolt hole 31 is aligned with a nylon bolt hole 28 on the movable pressing plate 15 and then fixed through a nylon screw 17.
The main function of the wedge link 12 is to provide a pulling or releasing force to move the wedge up and down. The wedge connecting rod is made of the same material and structural form as the control pull rod, the diameter of the wedge connecting rod is 10-15 mm, and the length of a single section of the wedge connecting rod is 1.0-1.5 m. The wedge connecting rod 12 is a full threaded rod 10 and is fixed on the orifice supporting plate 9 through a drawing bolt 11.
The orifice supporting plate 9 mainly acts to abut against the control pull rod to prevent the control pull rod from sliding off, and simultaneously acts as a counterforce device of the wedge pull rod to enable the control pull rod to pull the wedge, and the pulling bolt 11 pulls the wedge connecting rod outwards in a rotating mode. As shown in FIG. 8, the orifice supporting plate is 5-10 mm thick, rectangular, 100-200 mm long and 80-100 mm wide, a rectangular notch 32 is arranged on one side of the rectangle, and the length of the notch is 30-80 mm and the width is 20-30 mm. Four corners of the orifice supporting plate 9 are respectively provided with four orifice supporting plate screw holes 33 with the diameter of 20-30 mm.
The inner ring of the traction bolt 11 is provided with threads matched with the threaded opening of the wedge pull rod, and the outer ring has the diameter of 30-40 mm and the thickness of 15-25 mm.
The pressure sensor 16 is located at the center of the back of the movable platen 15 to monitor the change in the pressing force of the apparatus. The pressure sensor 16 is of a patch type and is connected with an external measuring circuit through a pressure sensor lead 14. The pressure sensor 16 is a flexible film type resistance pressure sensor, the thickness is 0.1-0.4 mm, and the measuring range is more than or equal to 2 kg.
The application method of the installation device specifically comprises the following steps:
s1: after mining is finished and before filling is started, cleaning a site, arranging hole-forming sleeves with corresponding lengths in a stope according to monitoring requirements, wherein the hole-forming sleeves can be horizontally arranged, obliquely arranged and vertically arranged, one ends of the hole-forming sleeves in the stope are closed to prevent slurry from entering, the other ends of the hole-forming sleeves are led out from a filling retaining wall, the lead-out lengths are not more than 100mm, and sealing treatment is performed to prevent the slurry from leaking from the periphery;
s2: the fixed pressing plate is connected with the hoop barrel through 3 fixing bolts to ensure close contact; the movable pressing plate, the sliding wedge block and the hoop barrel convex groove are connected by nylon bolts, so that the movable pressing plate, the sliding wedge block and the hoop barrel convex groove are prevented from falling; the collet and the hoop barrel are tightly connected through a bolt; the microseism sensor is placed in the hoop barrel, the hoop barrel is tightly contacted with the sensor through the fastening bolt, and the microseism sensor is prevented from sliding; the connecting plate is fixedly connected with the bottom support through a bolt; arranging a pressure sensor at the center of the back of the movable press plate, wherein the length of a lead of the pressure sensor is greater than that of the pore-forming sleeve, and a nylon hauling rope passes through a nylon bolt screw hole at the lower part of the movable press plate and is knotted and fixed, and the length of the nylon hauling rope is greater than that of the pore-forming sleeve;
s3: connecting the control connecting rod and the wedge connecting rod section by section respectively, and meanwhile, slowly sending the micro-vibration sensor into the hole forming sleeve until the micro-vibration sensor reaches a preset position; at the moment, the control connecting rod is flush with the orifice and stops lengthening, and the wedge connecting rod is 0.5-1.0 mm shorter than the control connecting rod; sequentially penetrating one side of the wedge connecting rod without the sleeve through a traction bolt and an orifice supporting plate, continuously lengthening a section of wedge connecting rod, and fixing the orifice supporting plate on the filling retaining wall through an expansion bolt;
s4: connecting a pressure sensor wire, adopting a wrench to rotate a traction bolt, gradually drawing a sliding wedge block outwards by a wedge block connecting rod under the rotation action of the bolt, breaking a nylon screw under the action of shearing force, continuously drawing the wedge block outwards, paying attention to the change of a resistance value measured by a pressure sensor in real time in the process of drawing outwards, and stopping drawing when the resistance value is less than 10K omega; at the moment, after the equipment is installed, connecting a microseismic sensing lead for monitoring;
s5: after monitoring is finished, the bolt is pulled in a reverse rotation mode, the wedge connecting rod drives the sliding wedge to move inwards, and when the resistance value of the pressure sensor becomes infinite, rotation is stopped; and (3) removing the orifice supporting plate and the traction bolt, firstly taking out the movable pressing plate through the traction rope, then sequentially taking out the sliding wedge block and the microseismic sensor, and finally removing the hoop barrel, the fixed pressing plate and the bottom support.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A filling body microseismic monitoring and mounting device is characterized by comprising a pore-forming sleeve, a conveying and supporting mechanism and an extrusion fixing mechanism;
the conveying and supporting mechanism comprises a hoop cylinder, a bottom support, a control connecting rod and a connecting plate; the extrusion fixing mechanism comprises a fixed pressing plate, a sliding wedge block, a movable pressing plate, a wedge block connecting rod, an orifice supporting plate, a traction bolt, a traction rope and a pressure sensor; the pore-forming sleeve is arranged at the outermost part of the whole device;
a microseismic sensor is fixed in the hoop cylinder, the bottom of the hoop cylinder is arranged on the bottom support, two side surfaces of the hoop cylinder are respectively provided with a fixed pressing plate and a movable pressing plate, the fixed pressing plate is connected with the hoop cylinder through a fixed bolt, the bottom support is connected with a control connecting rod through a connecting plate, the movable pressing plate is connected with a traction rope, a sliding wedge block is arranged between the movable pressing plate and the hoop cylinder, the sliding wedge block is connected with a wedge block connecting rod, the wedge block connecting rod is fixed with an orifice supporting plate through a traction bolt, the other end of the control connecting rod is propped against the orifice supporting plate, and the movable pressing plate is provided with a pressure sensor;
one side of the hoop barrel is provided with an opening, fastening bolts are evenly arranged on one side of the opening along the length direction, and two sides adjacent to the opening side are respectively provided with an arc-shaped convex groove.
2. The filling body microseismic monitoring and mounting device of claim 1 wherein the pore-forming sleeve is circular in cross section, 80-100 mm in diameter, and is machined from thin-walled steel plate with one end sealed and the other end open.
3. The infill microseismic monitoring and mounting device as claimed in claim 1, wherein the length of the hoop cylinder is 60-100 mm larger than that of the microseismic sensor, and four circular screw holes are symmetrically arranged at a distance of 15-25 mm from two end parts on the opposite side of the opening side of the hoop cylinder.
4. The filling body microseismic monitoring and mounting device of claim 1, wherein the bottom support is made of a 2-4 mm thick steel plate, the cross section of the bottom support is double-layer arc, the radian of the upper layer arc plate is consistent with that of the hoop cylinder, the radian of the arc angle is 60-80 degrees, the radian of the lower layer arc plate is consistent with that of the pore-forming sleeve, the radian of the arc angle is 60-80 degrees, the two layers of arc plates are connected by three webs in the middle and two sides, the distance between the two layers of arc plates is 8-28 mm, the length of the bottom support is the same as that of the hoop cylinder, the two ends of the bottom support are sealed by steel plates with the same specification, the shape of the bottom support is consistent with that of the upper layer arc plate and is 20-30 mm higher than that of the upper layer arc plate, two sealing ends are respectively provided with two connecting screw holes along the two sides of the middle web symmetrically for mounting connecting bolts and fixing the hoop cylinder.
5. The filling body microseismic monitoring installation device of claim 1 wherein the control connecting rod is formed by splicing a plurality of sections, each section is 1.5-2.0 m in length, the whole body of the control connecting rod is threaded, the diameter is 20-25 mm, and the control connecting rod is connected with the connecting plate through a connecting rod connecting port on the connecting plate.
6. The filling body microseismic monitoring and mounting device of claim 1 wherein the fixed pressing plate is of an arc structure, the radian is the same as that of the hole-forming sleeve, the arc angle is 80-100 degrees, the length of the fixed pressing plate is the same as that of the microseismic sensor, a fixed pressing plate groove is arranged at the center of the arc inside of the fixed pressing plate and is used for matching with a convex groove of the hoop barrel, and three fixed bolt screw holes are uniformly arranged in the fixed pressing plate groove along the length direction.
7. The device for monitoring and installing the slight shock of the filling body according to claim 1, wherein the movable pressing plate is of an arc structure, the length of the movable pressing plate is the same as that of the slight shock sensor, a nylon bolt screw hole and a traction rope hole are formed in the center of the inner portion of the movable pressing plate along the length direction, and a traction rope penetrates through and is fixed in the traction rope hole.
8. The infill microseismic monitoring and mounting device of claim 1 wherein the surface of the sliding wedge in contact with the collar is arc-shaped, and the middle of the arc is provided with a sliding wedge groove which is matched with a convex groove on the collar; the thickness of the upper part and the thickness of the surface, in contact with the movable pressing plate, of the sliding wedge block are uniformly changed, the thickness of the thickest part is 10-20 mm, and the thickness of the thinnest part is 2-10 mm; and arranging a sliding wedge screw hole at the position of 4-13 mm of the thickness of the sliding wedge, and fixing the sliding wedge screw hole through a nylon screw after aligning the sliding wedge screw hole with a nylon bolt screw hole on the movable pressing plate.
9. The infill microseismic monitoring and mounting device of claim 1 wherein the wedge connecting rod is a full threaded rod and is fixed on the orifice support plate by a pulling bolt, the orifice support plate is rectangular, a rectangular notch is arranged on one side of the rectangle, and four orifice support plate screw holes are respectively arranged at four corners of the orifice support plate.
10. The application method of the filling body microseismic monitoring installation device according to the claim 1, which is characterized by comprising the following steps:
s1: after mining is finished and before filling is started, cleaning a site, arranging hole-forming sleeves with corresponding lengths in a stope according to monitoring requirements, wherein the hole-forming sleeves can be horizontally arranged, obliquely arranged and vertically arranged, one end of each hole-forming sleeve in the stope is closed, and the other end of each hole-forming sleeve is led out from a filling retaining wall;
s2: the fixed pressing plate is connected with the hoop barrel through 3 fixing bolts to ensure close contact; the movable pressing plate, the sliding wedge block and the hoop barrel convex groove are connected by nylon bolts, so that the movable pressing plate, the sliding wedge block and the hoop barrel convex groove are prevented from falling; the collet and the hoop barrel are tightly connected through a bolt; the microseism sensor is placed in the hoop barrel, the hoop barrel is tightly contacted with the sensor through the fastening bolt, and the microseism sensor is prevented from sliding; the connecting plate is fixedly connected with the bottom support through a bolt; arranging a pressure sensor at the center of the back of the movable press plate, wherein the length of a lead of the pressure sensor is greater than that of the pore-forming sleeve, and a nylon hauling rope passes through a nylon bolt screw hole at the lower part of the movable press plate and is knotted and fixed, and the length of the nylon hauling rope is greater than that of the pore-forming sleeve;
s3: connecting the control connecting rod and the wedge connecting rod section by section respectively, and meanwhile, slowly sending the micro-vibration sensor into the hole forming sleeve until the micro-vibration sensor reaches a preset position; at the moment, the control connecting rod is flush with the orifice and stops lengthening, and the wedge connecting rod is 0.5-1.0 mm shorter than the control connecting rod; sequentially penetrating one side of the wedge connecting rod without the sleeve through a traction bolt and an orifice supporting plate, continuously lengthening a section of wedge connecting rod, and fixing the orifice supporting plate on the filling retaining wall through an expansion bolt;
s4: connecting a pressure sensor wire, adopting a wrench to rotate a traction bolt, gradually drawing a sliding wedge block outwards by a wedge block connecting rod under the rotation action of the bolt, breaking a nylon screw under the action of shearing force, continuously drawing the wedge block outwards, paying attention to the change of a resistance value measured by a pressure sensor in real time in the process of drawing outwards, and stopping drawing when the resistance value is less than 10K omega; at the moment, after the equipment is installed, connecting a lead of the microseismic sensor for monitoring;
s5: after monitoring is finished, the bolt is pulled in a reverse rotation mode, the wedge connecting rod drives the sliding wedge to move inwards, and when the resistance value of the pressure sensor becomes infinite, rotation is stopped; and (3) removing the orifice supporting plate and the traction bolt, firstly taking out the movable pressing plate through the traction rope, then sequentially taking out the sliding wedge block and the microseismic sensor, and finally removing the hoop barrel, the fixed pressing plate and the bottom support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111519620.2A CN113945963B (en) | 2021-12-14 | 2021-12-14 | Filling body micro-seismic monitoring and mounting device and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111519620.2A CN113945963B (en) | 2021-12-14 | 2021-12-14 | Filling body micro-seismic monitoring and mounting device and application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113945963A CN113945963A (en) | 2022-01-18 |
| CN113945963B true CN113945963B (en) | 2022-03-11 |
Family
ID=79339103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111519620.2A Active CN113945963B (en) | 2021-12-14 | 2021-12-14 | Filling body micro-seismic monitoring and mounting device and application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113945963B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010266347A (en) * | 2009-05-15 | 2010-11-25 | Japan Atomic Energy Agency | Geological structure survey system and method therefor |
| CN105717537A (en) * | 2016-03-25 | 2016-06-29 | 中国科学院武汉岩土力学研究所 | Random-direction whole-hole section three-direction rigid coupling sensor installing and recycling device |
| CN107102352A (en) * | 2017-06-14 | 2017-08-29 | 四川大学 | A kind of reusable Microseismic monitoring system of microseismic sensors |
| CN109116411A (en) * | 2018-08-30 | 2019-01-01 | 东北大学 | Microseismic sensors are fixed and recyclable device in a kind of hole suitable for different pore size |
| CN109991656A (en) * | 2019-04-15 | 2019-07-09 | 武汉理工大学 | Recyclable device is installed in a kind of microseismic sensors hole based on hot melt adhesive |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7048089B2 (en) * | 2003-05-07 | 2006-05-23 | Battelle Energy Alliance, Llc | Methods and apparatus for use in detecting seismic waves in a borehole |
| CN203981896U (en) * | 2014-08-05 | 2014-12-03 | 山西潞安环保能源开发股份有限公司 | A kind of waterfrac treatment monitoring microseismic monitoring sensor stationary installation |
| US11078787B2 (en) * | 2018-01-29 | 2021-08-03 | Baker Hughes, A Ge Company, Llc | Estimating properties of a subterranean formation |
-
2021
- 2021-12-14 CN CN202111519620.2A patent/CN113945963B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010266347A (en) * | 2009-05-15 | 2010-11-25 | Japan Atomic Energy Agency | Geological structure survey system and method therefor |
| CN105717537A (en) * | 2016-03-25 | 2016-06-29 | 中国科学院武汉岩土力学研究所 | Random-direction whole-hole section three-direction rigid coupling sensor installing and recycling device |
| CN107102352A (en) * | 2017-06-14 | 2017-08-29 | 四川大学 | A kind of reusable Microseismic monitoring system of microseismic sensors |
| CN109116411A (en) * | 2018-08-30 | 2019-01-01 | 东北大学 | Microseismic sensors are fixed and recyclable device in a kind of hole suitable for different pore size |
| CN109991656A (en) * | 2019-04-15 | 2019-07-09 | 武汉理工大学 | Recyclable device is installed in a kind of microseismic sensors hole based on hot melt adhesive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113945963A (en) | 2022-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107102352B (en) | Microseism monitoring system with reusable microseism sensor | |
| US10955574B2 (en) | Rock damage acoustic monitoring system | |
| CN104330819B (en) | A kind of microseismic sensors recoverable erecting device and installation method | |
| CN107045018B (en) | Recovery type on-site acoustic emission sensor | |
| US5775849A (en) | Coupler for ducts used in post-tension rock anchorage systems | |
| US3837258A (en) | Rock bolts | |
| CA2062543C (en) | Cable bolt monitoring device | |
| CN107504263A (en) | A kind of internal-expansion type push pipe moves back pipe stopping device, system and method | |
| US10976455B2 (en) | Test system for microseismic test of rock mass fractures | |
| KR100708345B1 (en) | Acoustic televiwer logging | |
| CN105911150A (en) | Device and method for mounting recyclable surrounding rock fracture monitoring acoustic emission sensor | |
| CN107121695A (en) | Fluid pressure type acoustic monitoring system | |
| CN105572231A (en) | Acoustic emission monitoring performing system suitable for TBM tunnel | |
| CN113945963B (en) | Filling body micro-seismic monitoring and mounting device and application method | |
| US11137508B2 (en) | Monitoring system for deformations of gas storage | |
| CN110566242A (en) | control method for surrounding rock of top coal roadway of large-inclination soft thick coal seam | |
| CN215860255U (en) | Anti-overflow thick liquid is from expanding from big envelope and flexible slip casting stock | |
| CN214787303U (en) | Hole sealing device for grouting anchor cable | |
| CN212376670U (en) | Broken roof supporting device of underground mine | |
| CN107255460A (en) | Spring acoustic emission sensor erecting device | |
| CN210087250U (en) | Water stop sleeve for drilling machine | |
| CN206862304U (en) | Spring acoustic emission sensor erecting device | |
| CN207300986U (en) | Fluid pressure type acoustic emission sensor device | |
| CN118327648A (en) | Tunnel soft rock large deformation monitoring anchor rod | |
| CN112797262B (en) | Mining anchor bolt and installation and use method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |