CN114687727A - Advanced geological exploration device and method for underground rock shield roadway of directional drilling coal mine - Google Patents
Advanced geological exploration device and method for underground rock shield roadway of directional drilling coal mine Download PDFInfo
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- 238000005553 drilling Methods 0.000 title claims abstract description 227
- 239000003245 coal Substances 0.000 title claims abstract description 102
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000012545 processing Methods 0.000 claims description 22
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- 238000010248 power generation Methods 0.000 claims description 9
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- 238000007789 sealing Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 5
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- 230000001808 coupling effect Effects 0.000 claims description 4
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- 230000005641 tunneling Effects 0.000 description 11
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- 230000000694 effects Effects 0.000 description 3
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- 238000005452 bending Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
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Abstract
The invention provides a device and a method for advanced geological exploration of a rock shield tunnel under a directional drilling coal mine, which comprises the following steps: (1) designing a shield tunnel line; (2) exploring the directional drilling design; (3) exploring the construction of the directional drilling casing section; (4) and (3) probing the main hole of the directional drilling: according to the designed track of exploration directional drilling, a directional drilling machine and a mining dynamic formation detection while drilling instrument are utilized, a main hole is constructed by adopting a measurement while drilling directional drilling technology, and the mining dynamic formation detection while drilling instrument comprises a short-distance measurement transmission probe and a long-distance signal transmission probe; (5) probing the directional drilling branch hole for construction; (6) correcting the designed track of the exploration directional drilling; (7) probing the directional drilling hole; (8) remotely exploring the geological abnormal body; (9) adjusting the shield tunnel line; (10) and (5) tunnel shield construction. The invention has the advantages of long exploration distance, accurate track control, small drilling engineering amount and accurate exploration result.
Description
Technical Field
The invention belongs to the technical field of coal field geological exploration, relates to advanced geological exploration, and particularly relates to an advanced geological exploration device and method for a rock shield tunnel under a directional drilling coal mine.
Background
Roadway engineering is an essential component for coal mining, and a large amount of rock roadway tunneling requirements exist in high-gas and coal and gas outburst mines. Aiming at the problems of low efficiency and high labor intensity of workers in the traditional rock roadway tunneling process of a drilling and blasting method, a freezing method and the like, in recent years, a mining shield machine is developed, a high-efficiency shield tunneling technology of the rock roadway is developed, the mechanical tunneling of the rock roadway is realized, and the method is more and more widely applied to areas such as Anhui, Shanxi, Shaanxi and the like.
Considering that a shield machine system is huge, once the shield machine system is arranged and installed, a tunneling inclination angle and a direction of the shield machine system are fixed, the shield machine system is not easy to adjust by a large angle, and a yielding drilling machine cannot be used for advanced geological exploration in the shield construction process, so that the development conditions of a coal bed and a geological abnormal body on a tunneling line must be accurately found out before shield construction, the safety distance between the shield machine system and the coal bed during tunneling construction is ensured, and the occurrence of safety accidents caused by mistaken uncovering of the coal bed and a geological structure is avoided. At present, the underground coal mine mainly adopts cross-layer drilling to carry out geological exploration before shield tunneling, and the following problems need to be solved urgently:
(A) the layer-crossing drilling needs to be constructed by utilizing dug coal roadways or rock roadways, and mines needing rock roadway tunneling do not often have coal roadways and rock roadways meeting the conditions; even if some mines have coal roadways and rock roadways, the distance between the partial mines and a target area to be explored is generally long, exploration engineering quantity is large, and construction difficulty is high.
(B) The cross-layer drill holes and the rock roadway tunneling lines are intersected in a dotted manner, so that in order to improve the exploration effect, a large number of drill holes need to be constructed, and the exploration cost is high; the cross-layer drilling is generally constructed by adopting a conventional rotary drilling process, the track is uncontrollable, and the exploration precision is low.
(C) The mine needing rock roadway tunneling generally has wide development of broken soft outburst coal seams, and when a drill hole encounters the broken soft coal seams, unstable collapse of the hole wall and gas spraying holes are easy to happen, so that the accidents of drill jamming or gas overrun are caused.
(D) Although the directional drilling technology can measure and control the drilling track, the existing equipment mainly measures the drilling track, instruments for stratum identification while drilling and geological abnormal body exploration are lacked, track control is mainly carried out according to the deviation of the actual drilling track and the designed track during directional drilling construction, the drilling can be identified only after the drilling meets the coal seam and the geological abnormal body, and the safety risk is high when the drilling meets the coal seam and the geological abnormal body.
(E) The coverage range of borehole exploration is limited, so that 'one-hole observation' is easy to exist, a large number of boreholes need to be constructed to ensure the exploration effect, and the exploration cost and the construction period are increased.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a device and a method for advanced geological exploration of an underground rock shield tunnel of a directional drilling coal mine, and solve the technical problem of low accuracy of the advanced geological exploration of the underground rock shield tunnel of the coal mine in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for advanced geological exploration of underground rock shield roadway of directional drilling coal mine comprises the following steps:
step one, designing a shield tunnel line:
determining a control distance between a shield tunnel and a coal seam according to mine early-stage geological survey data and mine working face arrangement, designing a shield tunnel line, and determining a control point space parameter according to the shield tunnel construction to engineering control requirements;
step two, probing the directional drilling design:
designing a exploration directional drilling hole by taking the starting point of the shield tunnel line as a hole opening point, and determining a plane coordinate parameter and a section coordinate parameter of the exploration directional drilling hole;
step three, exploring the construction of the directional drilling casing section:
setting a drill site at the starting point of a shield tunnel line, constructing a casing section by utilizing a directional drilling machine and adopting a step-by-step rotary reaming technology, withdrawing a drilling tool in a hole after the designed depth is reached, descending a casing for sealing the hole, and connecting an orifice device;
fourthly, probing the main hole of the directional drilling:
according to the designed track of exploration directional drilling, a directional drilling machine and a mining dynamic stratum detection instrument while drilling are utilized, a directional drilling technology while drilling is adopted to construct a main hole, and 1 branch point is reserved actively every 20-40 m in the construction process of the main hole;
the mining while-drilling dynamic formation detection instrument comprises a short-distance measurement transmission probe and a long-distance signal transmission probe;
step five, probing the directional drilling branch hole construction:
in the main hole construction process, increasing the drill hole inclination angle every 50-60 m to upwards probe the coal bed, and measuring the radial stratum information of the drill hole in real time by using a mining while-drilling dynamic stratum detection instrument; when a mining dynamic formation detection instrument while drilling detects that a branch hole is approaching a coal seam gradually, recording the up-down displacement and the left-right displacement of a coal detection point at the moment, calculating to obtain the true inclination angle of the coal seam, then slowing down the drilling speed, continuing to drill for 1-3 m forwards, and stopping drilling after determining that the coal seam is ahead of a drill hole;
step six, correcting the design track of the exploration directional drilling:
dynamically correcting the designed track of the exploration directional drilling according to the true dip angle of the coal seam obtained by calculation in the step five;
step seven, probing the directional drilling hole:
withdrawing the drill to the branch point reserved in the fourth step, after sidetrack drilling out branches, repeating the fourth step to the sixth step to construct the main hole and the branch hole until the design depth is reached, and withdrawing the directional drilling tool in the hole;
step eight, remotely exploring the geological abnormal body:
a directional drilling machine and a cable type directional drilling rod are utilized to put a remote detection instrument for the geological abnormal body for the mine into the exploration directional drilling hole, and the development condition of the geological abnormal body in a radial 30m columnar area of the main hole is explored in real time in the drilling process;
step nine, adjusting the shield tunnel line:
adjusting the shield tunnel design line according to the found coal seam and geological abnormal body conditions, re-determining the control point space parameters, and making a geological abnormal body scheme in advance;
step ten, tunnel shield construction:
and performing tunnel shield construction according to the adjusted shield tunnel line until reaching a preset depth.
The invention also has the following technical characteristics:
preferably, in step four, the exploration directional drilling hole comprises a casing section, a main hole and a branch hole, wherein: the casing section is drilled with holes from a drilling field, penetrates through an orifice crushing zone upwards and enters a stable rock stratum, and then is put into a casing for sealing; the plane of the main hole extends along the design line of the shield tunnel, and the section is arranged 2-5 m below the coal bed to be detected; the branch holes are separated from the main hole, are arranged every 50-60 m and are upwards explored to be close to the coal bed.
Preferably, in step five, the method for calculating the true dip angle of the coal seam includes:
in the formula:
θnthe true dip angle of the coal seam between the nth branch hole coal detection point and the nth-1 branch hole coal detection point is measured in degrees;
Zn、Zn-1the upper and lower displacement of the nth branch hole coal probing point and the nth-1 branch hole coal probing point is respectively, and the unit is m;
Xn、Xn-1the horizontal displacement of the nth branch hole coal probing point and the nth-1 branch hole coal probing point is respectively, and the unit is m.
The short-distance measurement transmission probe tube comprises a bent outer tube, a screw, a universal transmission torsion shaft and a driving shaft are sequentially arranged in the bent outer tube, a drill bit joint used for being connected with a directional drill bit is arranged at the head end of the driving shaft, and a far joint used for being connected with a long-distance signal transmission probe tube is arranged at the tail end of the bent outer tube;
a measuring bin is arranged in the side wall of the bent outer pipe close to the head end, a measuring bin cover is arranged on the measuring bin, and a power supply unit, a short-distance wireless transmission module, a short-distance data acquisition control module, an inclination angle measuring sensor, a resistivity measuring sensor and a natural gamma measuring sensor are arranged in the measuring bin; the power supply unit supplies power to the close-range data acquisition control module, the inclination angle measuring sensor, the resistivity measuring sensor and the natural gamma measuring sensor; the dip angle measuring sensor, the resistivity measuring sensor and the natural gamma measuring sensor are respectively connected with the close range data acquisition control module, and the close range data acquisition control module is connected with the close range wireless transmission module.
Preferably, the power supply unit is a power supply battery or a magnetic coupling power generation unit; the magnetic coupling power generation unit comprises a magnetic coupling rotor, the magnetic coupling rotor is connected with a driving shaft of a generator, the generator is connected with a stabilized voltage supply module to transmit power, and the stabilized voltage supply module supplies power to the close range data acquisition control module, the inclination angle measuring sensor, the resistivity measuring sensor and the natural gamma measuring sensor;
the magnetic coupling device is characterized by further comprising a magnetic rotating turbine which is fixedly installed on the driving shaft, the magnetic rotating turbine is arranged opposite to the magnetic coupling rotor, the central axis of rotation of the magnetic rotating turbine and the central axis of rotation of the magnetic coupling rotor are parallel, the driving shaft drives the magnetic rotating turbine to rotate, the magnetic coupling rotor is driven to rotate under the action of magnetic coupling when the magnetic rotating turbine rotates, and the magnetic coupling rotor drives the generator to generate electricity.
Specifically, the remote signal transmission probe comprises an external while-drilling instrument tube, an internal while-drilling instrument tube is coaxially arranged in the external while-drilling instrument tube, and a water passing channel is formed between the external while-drilling instrument tube and the internal while-drilling instrument tube; the head end of the external pipe of the while-drilling instrument is provided with a proximity joint for connecting with the short-distance measurement and transmission pipe, and the tail end of the external pipe of the while-drilling instrument is provided with a drill rod joint for connecting with a cabled directional drill rod;
a receiving bin is arranged in the side wall of the external pipe of the while-drilling instrument, which is close to the head end, a receiving bin cover is arranged on the receiving bin, and a short-distance wireless receiving module is arranged in the receiving bin; the bottom of the receiving bin is provided with an axial wire passing hole; the head end of the inner pipe of the while-drilling instrument is fixed in the outer pipe of the while-drilling instrument by a water passing fixing sleeve; the water passing fixing sleeve is provided with a broken line hole communicated with the inside of the inner tube of the while-drilling instrument, and the broken line hole is communicated with the axial line passing hole, so that the receiving bin is communicated with the inside of the inner tube of the while-drilling instrument and can be wired; the tail end of the inner tube of the while-drilling instrument is provided with a wired transmission joint, and the wired transmission joint is fixed in the outer tube of the while-drilling instrument through a water locking nut;
a wired carrier transmission module, a power supply module, an upper data acquisition and processing module and an azimuth angle measurement module are packaged in the inner tube of the while-drilling instrument; the power supply module is connected with the wired transmission joint to take power from the outside and supplies power to the upper data acquisition and processing module and the azimuth angle measuring module; the short-distance wireless receiving module and the azimuth angle measuring module are respectively connected with the upper data acquisition and processing module, the upper data acquisition and processing module is connected with the wired carrier transmission module, and the wired carrier transmission module is connected with the wired transmission joint to transmit data.
The invention also discloses a directional drilling coal mine underground rock shield roadway advanced geological exploration device, which comprises a mining dynamic formation detection while drilling instrument, wherein the mining dynamic formation detection while drilling instrument comprises a short-distance measurement and transmission probe and a long-distance signal transmission probe; the short-distance measuring and transmitting probe tube adopts the short-distance measuring and transmitting probe tube; the remote signal transmission probe adopts the remote signal transmission probe.
Compared with the prior art, the invention has the following technical effects:
in the method, the directional drilling hole can be probed along the extending direction of the shield tunnel, the probing distance is long, the track can be accurately controlled, the drilling engineering quantity is small, and the probing result is accurate.
In the method of the invention, the directional drilling construction is convenient, and the coal road or rock road does not need to be tunneled first.
In the method, the geological abnormal body remote detecting instrument for the mine can be used for detecting the geological abnormal body in the radial 30m range of the directional drilling hole, so that the coverage range of the directional drilling hole is enlarged, and the shield construction safety is guaranteed.
In the device, the mining while-drilling dynamic stratum detecting instrument can measure the resistivity and natural gamma radioactivity information of the stratum close to the drill bit in real time while drilling in the drilling process, so that the coal bed is identified in advance before the broken soft outburst coal bed is drilled, the safety risk of the coal seen in the drilling is avoided, and the stratum identification precision is improved.
Drawings
FIG. 1 is a schematic diagram of the principle of the directional drilling coal mine underground rock shield tunnel advanced geological exploration method.
Fig. 2 is a schematic cross-sectional structure view of the proximity sensing probe.
FIG. 3 is a schematic view of the connections within the proximity sensing probe.
Fig. 4 is a schematic sectional view of a remote signal transmission probe.
The meaning of the individual reference symbols in the figures is: 1-shield roadway, 2-coal seam, 3-directional drilling, 4-casing segment, 5-main hole, 6-branch hole, 7-drill site, 8-geological anomalous body, 9-short distance measurement probe pipe and 10-long distance signal transmission probe pipe;
901-bending an outer pipe, 902-a screw rod, 903-a universal transmission torsion shaft, 904-a driving shaft, 905-a drill joint, 906-a far joint, 907-a measuring bin, 908-a measuring bin cover, 909-a power supply unit, 910-a short-distance wireless transmission module, 911-a short-distance data acquisition control module, 912-an inclination angle measuring sensor, 913-a resistivity measuring sensor and 914-a natural gamma measuring sensor;
90901-magnetic coupling rotor, 90902-generator, 90903-voltage-stabilized power supply module, 90904-magnetic rotating turbine;
1001-while-drilling instrument outer pipe, 1002-while-drilling instrument inner pipe, 1003-water passing channel, 1004-near joint, 1005-drill rod joint, 1006-receiving bin, 1007-receiving bin cover, 1008-short distance wireless receiving module, 1009-axial wire passing hole, 1010-water passing fixing sleeve, 1011-wire folding hole, 1012-wire transmission joint, 1013-wire carrier transmission module, 1014-power supply module, 1015-upper data acquisition and processing module, 1016-azimuth angle measuring module and 1017-water passing locking nut.
The present invention will be explained in further detail with reference to examples.
Detailed Description
It should be noted that all the components, devices, sensors and modules in the present invention, if not specifically mentioned, all adopt the components, devices, sensors and modules known in the art. For example, directional drilling machines and cabled directional drill rods are used as directional drilling machines and cabled directional drill rods known in the art.
Based on the condition of the prior art introduced in the background technology, the invention researches and designs a method for advanced geological exploration of the underground rock shield tunnel based on directional drilling aiming at the defects of large engineering quantity, low precision, small coverage range, large safety risk and the like existing in the prior advanced geological exploration of the underground rock shield tunnel of the coal mine, so as to overcome the defects.
The invention provides a method for advanced geological exploration of a rock shield tunnel in an underground coal mine based on directional drilling. According to the design condition of a shield roadway line, designing and exploring a directional drilling hole along the shield roadway line direction; then, probing directional drilling construction is carried out, a coal seam is probed upwards by using the branch holes, near-bit stratum information is measured in real time by adopting a mining while-drilling dynamic stratum probing instrument, the coal seam is recognized in advance before being drilled and met, and the true inclination angle of the coal seam is obtained through calculation; after the directional drilling construction is finished, a mining geological abnormal body remote detection instrument is put in, a geological abnormal body in the radial 30m range of the directional drilling is probed, and the coverage range of the probed directional drilling is enlarged; and finally, adjusting the shield tunnel line according to the occurrence conditions of the probed coal seam and the geological abnormal body, and ensuring safe shield construction.
The method of the invention fully exerts the advantages of accurate measurement and control of directional drilling track, accurate identification of stratum while drilling and large-range exploration of geological abnormal bodies, realizes advanced, accurate and regional exploration of coal beds and geological abnormal bodies on shield tunnel lines, and provides accurate reference basis for mine tunnel engineering design.
The following embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention are within the protection scope of the present invention.
Example 1:
the embodiment provides an advanced geological exploration device for a rock shield roadway under a directional drilling coal mine, which comprises a mining while-drilling dynamic stratum exploration instrument as shown in figures 2 to 4, wherein the mining while-drilling dynamic stratum exploration instrument comprises a short-distance measurement and transmission probe tube 9 and a long-distance signal transmission probe tube 10;
the short-distance measurement transmission probe tube 9 comprises an outer bent tube 901, a screw 902, a universal transmission torsion shaft 903 and a driving shaft 904 which are sequentially connected are arranged in the outer bent tube 901, a drill bit joint 905 used for being connected with a directional drill bit is arranged at the head end of the driving shaft 904, and a far joint 906 used for being connected with the long-distance signal transmission probe tube 10 is arranged at the tail end of the outer bent tube 901;
in this embodiment, the bent outer tube 901, the screw 902, the universal torque shaft 903 and the driving shaft 904 are all products known in the art.
A measuring bin 907 is arranged in the side wall, close to the head end, of the bent outer pipe 901, a measuring bin cover 908 is arranged on the measuring bin 907, and a power supply unit 909, a short-distance wireless transmission module 910, a short-distance data acquisition control module 911, an inclination angle measuring sensor 912, a resistivity measuring sensor 913 and a natural gamma measuring sensor 914 are arranged in the measuring bin 908; the power supply unit 909 supplies power to the close range data acquisition control module 911, the tilt angle measurement sensor 912, the resistivity measurement sensor 913, and the natural gamma measurement sensor 914; the inclination angle measurement sensor 912, the resistivity measurement sensor 913 and the natural gamma measurement sensor 914 are respectively connected with the close range data acquisition control module 911, and the close range data acquisition control module 911 is connected with the close range wireless transmission module 910.
In this embodiment, the short-distance wireless transmission module 910, the short-distance data acquisition control module 911, the tilt angle measurement sensor 912, the resistivity measurement sensor 913, and the natural gamma measurement sensor 914 are all products known in the art.
The remote signal transmission probe 10 comprises an external while-drilling instrument tube 1001, an internal while-drilling instrument tube 1002 is coaxially arranged in the external while-drilling instrument tube 1001, and a water passage 1003 is formed between the external while-drilling instrument tube 1001 and the internal while-drilling instrument tube 1002; a near joint 1004 used for being connected with the near measurement and transmission probe tube 9 is arranged at the head end of the external tube 1001 of the while-drilling instrument, and a drill rod joint 1005 used for being connected with a cabled directional drill rod is arranged at the tail end of the external tube 1001 of the while-drilling instrument;
a receiving bin 1006 is arranged in the side wall of the external pipe 1001 of the while-drilling instrument close to the head end, a receiving bin cover 1007 is arranged on the receiving bin 1006, and a short-distance wireless receiving module 1008 is arranged in the receiving bin 1006; an axial wire passing hole 1009 is arranged at the bottom of the receiving bin 1006; the head end of the while-drilling instrument inner tube 1002 is fixed in the while-drilling instrument outer tube 1001 by a water passing fixing sleeve 1010; the water passing fixing sleeve 1010 is provided with a broken line hole 1011 communicated with the interior of the while-drilling instrument inner tube 1002, and the broken line hole 1011 is communicated with the axial line passing hole 1009, so that the receiving bin 1006 is communicated with the interior of the while-drilling instrument inner tube 1002 and can be wired; the tail end of the while-drilling instrument inner tube 1002 is provided with a wired transmission joint 1012, and the wired transmission joint 1012 is fixed in the while-drilling instrument outer tube 1001 through a water passing locking nut 1017;
a wired carrier transmission module 1013, a power supply module 1014, an upper data acquisition and processing module 1015 and an azimuth angle measurement module 1016 are packaged in the while-drilling instrument inner tube 1002; the power supply module 1014 is connected with the wired transmission connector 1012 to take power from the outside, and the power supply module 1014 supplies power to the upper data acquisition processing module 1015 and the azimuth angle measuring module 1016; the short-distance wireless receiving module 1008 and the azimuth angle measuring module 1016 are respectively connected with the upper data acquisition processing module 1015, the upper data acquisition processing module 1015 is connected with the wired carrier transmission module 1013, and the wired carrier transmission module 1013 is connected with the wired transmission connector 1012 to transmit data.
In this embodiment, the short-distance wireless receiving module 1008, the wired carrier transmission module 1013, the power supply module 1014, the upper data collecting and processing module 1015, and the azimuth angle measuring module 1016 are all products known in the art.
In this embodiment, the water passing fixing sleeve 1010 and the water passing locking nut 1017 both adopt known products, and water passing holes are formed in the water passing fixing sleeve and the water passing locking nut, so that water flow can smoothly pass through the water passing holes.
As a preferred scheme of this embodiment, the bit joint 905 of the short-distance sensing probe 9 is connected to a directional bit, the distal joint 906 of the short-distance sensing probe 9 and the proximal joint 1004 of the long-distance signal transmission probe 10 are both female joints, and the bore diameters are not necessarily the same, and the two joints are connected through a reducer connecting pipe with a male joint in two sections, so as to realize the connection between the short-distance sensing probe 9 and the long-distance signal transmission probe 10. The drill rod joint 1005 of the remote signal transmission probe 10 is connected with a cable type directional drill rod, and meanwhile, the electric connection between the cable type directional drill rod and the cable type transmission joint 1012 is realized.
As a preferable solution of this embodiment, the power supply unit 909 is a power supply battery or a magnetic coupling power generation unit, and can release the power supply mode according to actual needs. Specifically, as shown in fig. 3, the magnetic coupling power generation unit includes a magnetic coupling rotor 90901, the magnetic coupling rotor 90901 is connected to a drive shaft of a generator 90902, the generator 90902 is connected to a regulated power supply module 90903 for power transmission, and the regulated power supply module 90903 supplies power to the close range data acquisition control module 911, the inclination angle measurement sensor 912, the resistivity measurement sensor 913, and the natural gamma measurement sensor 914;
the magnetic coupling type power generator further comprises a magnetic rotary turbine 90904, the magnetic rotary turbine 90904 is fixedly mounted on the driving shaft 904, the magnetic rotary turbine 90904 is arranged opposite to the magnetic coupling rotor 90901, the rotating central axes of the magnetic rotary turbine 90904 and the magnetic coupling rotor 90901 are parallel, the driving shaft 904 drives the magnetic rotary turbine 90904 to rotate, the magnetic coupling rotor 90901 is driven to rotate under the magnetic coupling effect when the magnetic rotary turbine 90904 rotates, and the magnetic coupling rotor 90901 drives the power generator 90902 to generate power.
In this embodiment, the power supply battery is a power supply battery commonly used in the art.
In this embodiment, the magnetic coupling power generation unit can generate power by using the power of the drive shaft, and can supply power to the proximity sensing probe 9 better. Specifically, the magnetic rotary turbine 90904 and the magnetic coupling rotor 90901 both adopt known products, permanent magnets are mounted on the magnetic rotary turbine 90904 and the magnetic coupling rotor 90901, the drive shaft 904 drives the front directional drill bit to break rock and simultaneously drives the magnetic turbine 90904 to rotate, the magnetic rotary turbine 90904 rotates under the drive of the drive shaft 904, the magnetic coupling rotor 90901 is driven to rotate through the magnetic coupling effect between the magnetic rotary turbine 90904 and the permanent magnets on the magnetic coupling rotor 90901, and the rotation of the magnetic coupling rotor 90901 drives the generator 90902.
When the mining while-drilling dynamic formation detection instrument works, in the short-distance measurement and transmission probe 9, the screw 902 is driven by high-pressure flushing liquid provided by the directional drilling machine to rotate and is transmitted to the driving shaft 904 through the universal transmission torsion shaft 903, and the driving shaft 904 drives the front directional drill bit to break rock. The power supply unit 909 supplies power to the close range data acquisition control module 911, the tilt angle measurement sensor 912, the resistivity measurement sensor 913, and the natural gamma measurement sensor 914; the inclination angle measurement sensor 912, the resistivity measurement sensor 913 and the natural gamma measurement sensor 914 respectively collect borehole inclination angles, formation resistivity and formation natural gamma radioactivity and transmit the borehole inclination angles, the formation resistivity and the formation natural gamma radioactivity to the close range data acquisition control module 911, and after the close range data acquisition control module 911 processes data, the close range wireless transmission module 910 is controlled and driven to transmit the measurement data.
In the remote signal transmission probe 10, the power supply module 1014 is connected with the wired transmission joint 1012 to supply power from the outside through the wired directional drill rod, and the power supply module 1014 supplies power to the upper data acquisition processing module 1015 and the azimuth angle measuring module 1016. Under the control and drive of the upper data acquisition and processing module 1015, the short-distance wireless receiving module 1008 receives the data transmitted by the short-distance wireless transmission module 910 and then delivers the data to the upper data acquisition and processing module 1015, the upper data acquisition and processing module 1015 simultaneously measures the drilling azimuth angle by using the azimuth angle measuring module 1016 and controls 1012 the wired carrier transmission module to transmit the drilling azimuth angle, the drilling inclination angle, the formation resistivity and the formation natural gamma radioactivity data to the orifice in real time through the wired transmission joint 1012 and the wired directional drill rod connected with the wired transmission joint.
Example 2:
the embodiment provides a method for advanced geological exploration of a rock shield tunnel under a directional drilling coal mine, which comprises the following steps of:
step one, designing a shield tunnel 1 line:
determining a control distance between a shield tunnel 1 and a coal seam 2 according to mine early-stage geological survey data and mine working face arrangement, designing a shield tunnel 1 line, and determining control point space parameters according to engineering control requirements of shield tunnel 1 construction;
step two, probing the design of the directional drilling hole 3:
designing an exploration directional drilling hole 3 by taking the starting point of a shield tunnel 1 line as a hole opening point, and determining a plane coordinate parameter and a section coordinate parameter of the exploration directional drilling hole 3;
step three, probing the construction of the casing section 4 of the directional drilling hole 3:
arranging a drill site 7 at the starting point of the line of the shield tunnel 1, constructing a casing section 4 by utilizing a directional drilling machine and adopting a step-by-step rotary reaming technology, withdrawing a drilling tool in a hole after the designed depth is reached, descending a casing for sealing the hole, and connecting an orifice device;
fourthly, probing the main hole 5 of the directional drilling hole 3:
according to the designed track of the exploration directional drilling hole 3, a directional drilling machine and a mining dynamic stratum detection instrument while drilling are utilized, a measurement while drilling directional drilling technology is adopted to construct a main hole 5, and 1 branch point is actively reserved every 20-40 m in the construction process of the main hole 5;
preferably, the mining while-drilling dynamic formation detection instrument comprises a short-distance measurement transmission probe 9 and a long-distance signal transmission probe 10; the short-distance sensing probe tube 9 adopts the short-distance sensing probe tube 9 given in embodiment 1; the remote signal transmission probe 10 is the remote signal transmission probe 10 given in example 1.
Preferably, in step four, the probe directional borehole 3 comprises a casing section 4, a main bore 5 and a branch bore 6, wherein: the casing section 4 is perforated from a drilling site 6, penetrates through an orifice crushing zone upwards and enters a stable rock stratum, and then is put into a casing for sealing; the plane of the main hole 5 extends along the designed line of the shield tunnel 1, and the section is arranged 2-5 m below the coal seam 2 to be detected; the branch holes 6 are separated from the main hole 5, are arranged every 50-60 m and are upwards explored to be close to the coal bed 2.
Fifthly, probing the branch holes 6 of the directional drilling holes 3:
in the construction process of the main hole 5, increasing the drill hole inclination angle every 50-60 m to upwards probe the coal seam 2, and measuring the radial stratum information of the drill hole in real time by using a mining while-drilling dynamic stratum detection instrument; when a mining dynamic formation detection instrument while drilling detects that a branch hole 6 is approaching a coal seam 2 gradually, recording the up-down displacement and the left-right displacement of a coal detection point at the moment, calculating to obtain the true inclination angle of the coal seam 2, then slowing down the drilling speed, continuing to drill for 1-3 m forwards, and stopping drilling after determining that the coal seam 2 is ahead of a drill hole;
preferably, in step five, the method for calculating the true dip angle of the coal seam 2 is as follows:
in the formula:
θnthe true dip angle of the coal seam between the nth branch hole coal detection point and the nth-1 branch hole coal detection point is measured in degrees;
Zn、Zn-1the upper and lower displacements of the nth branch hole coal detection point and the (n-1) th branch hole coal detection point are respectively expressed in m;
Xn、Xn-1are respectively the nth branchAnd the horizontal displacement of the hole coal probing point and the (n-1) th branch hole coal probing point is m.
Step six, the design track of the exploration directional drilling hole 3 is corrected:
dynamically correcting the design track of the exploration directional drilling hole 3 according to the true dip angle of the coal bed 2 obtained by calculation in the step five;
step seven, probing the directional drilling hole 3:
withdrawing the drill to the branch point reserved in the fourth step, after a branch is drilled out in a side drilling mode, repeating the fourth step to the sixth step to construct the main hole 5 and the branch hole 6 until the design depth is reached, and withdrawing the directional drilling tool in the hole;
step eight, remotely exploring the geological abnormal body 8:
a directional drilling machine and a cable type directional drilling rod are utilized to lower the mining geological anomalous body remote detection instrument 38 into the exploration directional drilling hole 3, and the development condition of a geological anomalous body 8 in a radial 30m columnar area of the main hole 5 is explored in real time in the drilling process;
the remote detecting instrument for the geological anomalous body for the mine adopts an instrument known in the prior art, is used as a preferable scheme of the embodiment, for example, a device for detecting the multiple-parameter borehole geophysical prospecting fine remote in the underground coal mine, which is provided by the invention patent of China, with the application number of 202010847622.3 and the application publication number of CN112112624A, and the name of the device and the method for detecting the multiple-parameter borehole geophysical prospecting fine remote in the underground coal mine, is used as the remote detecting instrument for the geological anomalous body for the mine, and is used for remotely detecting the geological anomalous body 8. The specific exploration method also adopts the method given in the Chinese invention patent.
Step nine, adjusting the shield tunnel 1 line:
according to the found conditions of the coal seam 2 and the geological abnormal body 8, adjusting the design line of the shield tunnel 1, re-determining the space parameters of the control points, and making a scheme of the geological abnormal body 8 in advance;
step ten, tunnel shield construction:
and performing tunnel shield construction according to the adjusted 1 line of the shield tunnel until reaching a preset depth.
Claims (9)
1. A method for advanced geological exploration of underground rock shield roadway of directional drilling coal mine comprises the following steps:
step one, designing a shield tunnel (1) line:
determining a control interval between a shield tunnel (1) and a coal seam (2) according to mine early-stage geological exploration data and mine working face arrangement, designing a shield tunnel (1) line, and determining a control point space parameter according to the engineering control requirement of shield tunnel (1) construction;
step two, probing the design of the directional drilling hole (3):
designing a exploration directional drilling hole (3) by taking a starting point of a line of the shield tunnel (1) as an opening point, and determining a plane coordinate parameter and a section coordinate parameter of the exploration directional drilling hole (3);
thirdly, exploring the casing section (4) construction of the directional drilling hole (3):
arranging a drill site (7) at the starting point of a line of a shield tunnel (1), constructing a casing section (4) by utilizing a directional drilling machine and adopting a step-by-step rotary reaming technology, withdrawing a drilling tool in a hole after the designed depth is reached, descending a casing for sealing the hole, and connecting an orifice device;
the method is characterized in that:
fourthly, probing the main hole (5) of the directional drilling hole (3) for construction:
according to the designed track of the exploration directional drilling (3), a directional drilling machine and a mining dynamic stratum detection instrument while drilling are utilized, a measurement while drilling directional drilling technology is adopted to construct a main hole (5), and 1 branch point is reserved actively every 20-40 m in the construction process of the main hole (5);
the mining while-drilling dynamic formation detection instrument comprises a short-distance measurement transmission probe (9) and a long-distance signal transmission probe (10);
fifthly, probing the branch hole (6) of the directional drilling hole (3) for construction:
in the construction process of the main hole (5), the coal seam (2) is upward probed by increasing the drill hole inclination angle every 50-60 m, and the radial stratum information of the drill hole is measured in real time by using a mining while-drilling dynamic stratum detection instrument; when the mining while-drilling dynamic stratum detection instrument detects that the branch hole (6) is approaching the coal seam (2) gradually, recording the up-down displacement and the left-right displacement of the coal detection point at the moment, calculating to obtain the true inclination angle of the coal seam (2), then slowing down the drilling speed, continuing to drill for 1-3 m forwards, and stopping drilling after determining that the coal seam (2) is in front of the drilled hole;
sixthly, correcting the design track of the exploration directional drilling hole (3):
dynamically correcting the design track of the exploration directional drilling hole (3) according to the true dip angle of the coal seam (2) obtained by calculation in the step five;
step seven, probing the directional drilling hole (3) and finishing the hole:
retreating the drill to the branch point reserved in the fourth step, after sidetrack drilling out branches, repeating the fourth step to the sixth step to construct a main hole (5) and a branch hole (6) until reaching the design depth, and retreating the directional drill in the hole;
step eight, remotely exploring the geological abnormal body (8):
a directional drilling machine and a cable type directional drilling rod are utilized to put a remote detection instrument (38) for the geological abnormal body for mining into the exploration directional drilling hole (3), and the development condition of the geological abnormal body (8) in the radial 30m columnar area of the main hole (5) is explored in real time in the drilling process;
step nine, adjusting the lines of the shield tunnel (1):
according to the found conditions of the coal seam (2) and the geological abnormal body (8), adjusting the design line of the shield tunnel (1), re-determining the space parameters of the control point, and making a scheme of the geological abnormal body (8) in advance;
step ten, tunnel shield construction:
and performing tunnel shield construction according to the adjusted shield tunnel (1) line until reaching a preset depth.
2. The advanced geological exploration method for the underground rock shield roadway of the directional drilling coal mine according to claim 1, characterized in that in step four, the exploration directional drilling (3) comprises a casing section (4), a main hole (5) and a branch hole (6), wherein: the casing section (4) is perforated from a drilling site (6), penetrates through an orifice crushing zone upwards and enters a stable rock stratum, and then is lowered into a casing for sealing; the plane of the main hole (5) extends along a designed line of the shield tunnel (1), and the section is arranged 2-5 m below the coal seam (2) to be detected; the branch holes (6) are separated from the main hole (5) and are arranged at intervals of 50-60 m and upwards explored to be close to the coal seam (2).
3. The advanced geological exploration method for the underground rock shield roadway of the directional drilling coal mine according to claim 1, wherein in the fifth step, the calculation method for the true inclination angle of the coal seam (2) comprises the following steps:
in the formula:
θnthe true dip angle of the coal seam between the nth branch hole coal detection point and the nth-1 branch hole coal detection point is measured in degrees;
Zn、Zn-1the upper and lower displacement of the nth branch hole coal probing point and the nth-1 branch hole coal probing point is respectively, and the unit is m;
Xn、Xn-1the horizontal displacement of the nth branch hole coal detecting point and the nth-1 branch hole coal detecting point is respectively expressed in m.
4. The advanced geological exploration method for the rock shield roadway under the directional drilling coal mine according to claim 1, characterized in that the short-distance measurement transmission probe (9) comprises an outer bent tube (901), a screw (902), a universal transmission torsion shaft (903) and a driving shaft (904) which are sequentially connected are arranged in the outer bent tube (901), a bit joint (905) used for being connected with a directional bit is arranged at the head end of the driving shaft (904), and a far joint (906) used for being connected with a long-distance signal transmission probe (10) is arranged at the tail end of the outer bent tube (901);
a measuring bin (907) is arranged in the side wall, close to the head end, of the bent outer pipe (901), a measuring bin cover (908) is arranged on the measuring bin (907), and a power supply unit (909), a short-distance wireless transmission module (910), a short-distance data acquisition control module (911), an inclination angle measuring sensor (912), a resistivity measuring sensor (913) and a natural gamma measuring sensor (914) are arranged in the measuring bin (908); the power supply unit (909) supplies power to the close range data acquisition control module (911), the inclination angle measurement sensor (912), the resistivity measurement sensor (913) and the natural gamma measurement sensor (914); the inclination angle measurement sensor (912), the resistivity measurement sensor (913) and the natural gamma measurement sensor (914) are respectively connected with the close range data acquisition control module (911), and the close range data acquisition control module (911) is connected with the close range wireless transmission module (910).
5. The advanced geological exploration method for the shield roadway of the underground rock of the directional drilling coal mine according to claim 4, characterized in that the power supply unit (909) is a power supply battery or a magnetic coupling power generation unit, the magnetic coupling power generation unit comprises a magnetic coupling rotor (90901), the magnetic coupling rotor (90901) is connected with a driving shaft of a generator (90902), the generator (90902) is connected with a stabilized voltage power supply module (90903) for power transmission, and the stabilized voltage power supply module (90903) supplies power to the close range data acquisition control module (911), the inclination angle measurement sensor (912), the resistivity measurement sensor (913) and the natural gamma measurement sensor (914);
the magnetic coupling type generator is characterized by further comprising a magnetic rotating turbine (90904), the magnetic rotating turbine (90904) is fixedly mounted on the driving shaft (904), the magnetic rotating turbine (90904) and the magnetic coupling rotor (90901) are arranged oppositely, the rotating central axes of the magnetic rotating turbine and the magnetic coupling rotor are parallel, the driving shaft (904) drives the magnetic rotating turbine (90904) to rotate, the magnetic coupling rotor (90901) is driven to rotate under the magnetic coupling effect when the magnetic rotating turbine (90904) rotates, and the magnetic coupling rotor (90901) drives the generator (90902) to generate electricity.
6. The advanced geological exploration method for the underground rock shield roadway of the directional drilling coal mine according to claim 1, characterized in that the remote signal transmission exploring tube (10) comprises an external while-drilling instrument tube (1001), an internal while-drilling instrument tube (1002) is coaxially arranged in the external while-drilling instrument tube (1001), and a water passing channel (1003) is arranged between the external while-drilling instrument tube (1001) and the internal while-drilling instrument tube (1002); a near joint (1004) used for being connected with the short-distance measurement probe pipe (9) is arranged at the head end of the external pipe (1001) of the while-drilling instrument, and a drill rod joint (1005) used for being connected with a cabled directional drill rod is arranged at the tail end of the external pipe (1001) of the while-drilling instrument;
a receiving bin (1006) is arranged in the side wall, close to the head end, of the external pipe (1001) of the while-drilling instrument, a receiving bin cover (1007) is arranged on the receiving bin (1006), and a short-distance wireless receiving module (1008) is installed in the receiving bin (1006); the bottom of the receiving bin (1006) is provided with an axial wire passing hole (1009); the head end of the while-drilling instrument inner tube (1002) is fixed in the while-drilling instrument outer tube (1001) by a water passing fixing sleeve (1010); the water passing fixing sleeve (1010) is provided with a line folding hole (1011) communicated with the inside of the while-drilling instrument inner tube (1002), and the line folding hole (1011) is communicated with the axial line passing hole (1009), so that the receiving bin (1006) is communicated with the inside of the while-drilling instrument inner tube (1002) and can be wired; the tail end of the while-drilling instrument inner tube (1002) is provided with a wired transmission joint (1012), and the wired transmission joint (1012) is fixed in the while-drilling instrument outer tube (1001) through a water-passing locking nut (1017);
a wired carrier transmission module (1013), a power supply module (1014), an upper data acquisition and processing module (1015) and an azimuth angle measurement module (1016) are packaged in the while-drilling instrument inner tube (1002); the power supply module (1014) is connected with the wired transmission joint (1012) to take power from the outside, and the power supply module (1014) supplies power to the upper data acquisition processing module (1015) and the azimuth angle measuring module (1016); the short-distance wireless receiving module (1008) and the azimuth angle measuring module (1016) are respectively connected with the upper data acquisition processing module (1015), the upper data acquisition processing module (1015) is connected with the wired carrier transmission module (1013), and the wired carrier transmission module (1013) is connected with the wired transmission connector (1012) to transmit data.
7. The advanced geological exploration device for the underground rock shield roadway of the directional drilling coal mine is characterized by comprising a mining dynamic formation detection while drilling instrument, wherein the mining dynamic formation detection while drilling instrument comprises a short-distance measurement and transmission probe tube (9) and a long-distance signal transmission probe tube (10);
the short-distance measurement and transmission probe tube (9) comprises an outer bent tube (901), a screw (902), a universal transmission torsion shaft (903) and a driving shaft (904) which are sequentially connected are arranged in the outer bent tube (901), a drill bit joint (905) used for being connected with a directional drill bit is arranged at the head end of the driving shaft (904), and a far joint (906) used for being connected with a long-distance signal transmission probe tube (10) is arranged at the tail end of the outer bent tube (901);
a measuring bin (907) is arranged in the side wall, close to the head end, of the bent outer pipe (901), a measuring bin cover (908) is arranged on the measuring bin (907), and a power supply unit (909), a short-distance wireless transmission module (910), a short-distance data acquisition control module (911), an inclination angle measuring sensor (912), a resistivity measuring sensor (913) and a natural gamma measuring sensor (914) are arranged in the measuring bin (908); the power supply unit (909) supplies power to the close-range data acquisition control module (911), the inclination angle measurement sensor (912), the resistivity measurement sensor (913) and the natural gamma measurement sensor (914); the inclination angle measurement sensor (912), the resistivity measurement sensor (913) and the natural gamma measurement sensor (914) are respectively connected with the close range data acquisition control module (911), and the close range data acquisition control module (911) is connected with the close range wireless transmission module (910).
8. The device for the advanced geological exploration of the tunnel shield of the underground rock of the directional drilling coal mine according to claim 7, characterized in that the power supply unit (909) is a power supply battery or a magnetic coupling power generation unit; the magnetic coupling power generation unit comprises a magnetic coupling rotor (90901), the magnetic coupling rotor (90901) is connected with a driving shaft of a generator (90902), the generator (90902) is connected with a stabilized voltage power supply module (90903) for power transmission, and the stabilized voltage power supply module (90903) supplies power to a close-range data acquisition control module (911), an inclination angle measurement sensor (912), a resistivity measurement sensor (913) and a natural gamma measurement sensor (914);
the magnetic coupling type generator is characterized by further comprising a magnetic rotating turbine (90904), the magnetic rotating turbine (90904) is fixedly mounted on the driving shaft (904), the magnetic rotating turbine (90904) and the magnetic coupling rotor (90901) are arranged oppositely, the central rotating axes of the magnetic rotating turbine and the magnetic coupling rotor are parallel, the driving shaft (904) drives the magnetic rotating turbine (90904) to rotate, the magnetic coupling rotor (90901) is driven to rotate under the magnetic coupling effect when the magnetic rotating turbine (90904) rotates, and the magnetic coupling rotor (90901) drives the generator (90902) to generate electricity.
9. The advanced geological exploration device for the rock shield roadway under the directional drilling coal mine according to claim 7, characterized in that the remote signal transmission exploring tube (10) comprises an external while-drilling instrument tube (1001), an internal while-drilling instrument tube (1002) is coaxially arranged in the external while-drilling instrument tube (1001), and a water passage (1003) is formed between the external while-drilling instrument tube (1001) and the internal while-drilling instrument tube (1002); a near joint (1004) used for being connected with the short-distance measurement probe pipe (9) is arranged at the head end of the external pipe (1001) of the while-drilling instrument, and a drill rod joint (1005) used for being connected with a cabled directional drill rod is arranged at the tail end of the external pipe (1001) of the while-drilling instrument;
a receiving bin (1006) is arranged in the side wall, close to the head end, of the external pipe (1001) of the while-drilling instrument, a receiving bin cover (1007) is arranged on the receiving bin (1006), and a short-distance wireless receiving module (1008) is installed in the receiving bin (1006); the bottom of the receiving bin (1006) is provided with an axial thread through hole (1009); the head end of the while-drilling instrument inner tube (1002) is fixed in the while-drilling instrument outer tube (1001) by a water passing fixing sleeve (1010); the water passing fixing sleeve (1010) is provided with a line folding hole (1011) communicated with the inside of the while-drilling instrument inner tube (1002), and the line folding hole (1011) is communicated with the axial line passing hole (1009), so that the receiving bin (1006) is communicated with the inside of the while-drilling instrument inner tube (1002) and can be wired; the tail end of the while-drilling instrument inner tube (1002) is provided with a wired transmission joint (1012), and the wired transmission joint (1012) is fixed in the while-drilling instrument outer tube (1001) through a water-passing locking nut (1017);
a wired carrier transmission module (1013), a power supply module (1014), an upper data acquisition and processing module (1015) and an azimuth angle measurement module (1016) are packaged in the while-drilling instrument inner tube (1002); the power supply module (1014) is connected with the wired transmission joint (1012) to take power from the outside, and the power supply module (1014) supplies power to the upper data acquisition processing module (1015) and the azimuth angle measuring module (1016); the short-distance wireless receiving module (1008) and the azimuth angle measuring module (1016) are respectively connected with the upper data acquisition processing module (1015), the upper data acquisition processing module (1015) is connected with the wired carrier transmission module (1013), and the wired carrier transmission module (1013) is connected with the wired transmission joint (1012) to transmit data.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450606A (en) * | 2022-09-15 | 2022-12-09 | 中煤科工西安研究院(集团)有限公司 | Coal mine underground composite power supply full-working-condition multi-parameter measurement-while-drilling system and method |
| CN115450606B (en) * | 2022-09-15 | 2024-06-28 | 中煤科工西安研究院(集团)有限公司 | Underground coal mine composite power supply all-condition multi-parameter measurement while drilling system and method |
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