CN114687727B - Advanced geological exploration device and method for underground rock shield tunnel of directional drilling coal mine - Google Patents
Advanced geological exploration device and method for underground rock shield tunnel of directional drilling coal mine Download PDFInfo
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- 238000005553 drilling Methods 0.000 title claims abstract description 238
- 239000003245 coal Substances 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000011435 rock Substances 0.000 title claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 62
- 239000000523 sample Substances 0.000 claims abstract description 55
- 238000005259 measurement Methods 0.000 claims abstract description 53
- 238000001514 detection method Methods 0.000 claims abstract description 39
- 238000010276 construction Methods 0.000 claims abstract description 37
- 238000005065 mining Methods 0.000 claims abstract description 32
- 238000013461 design Methods 0.000 claims abstract description 24
- 230000008054 signal transmission Effects 0.000 claims abstract description 19
- 238000005516 engineering process Methods 0.000 claims abstract description 9
- 238000012937 correction Methods 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 45
- 238000010168 coupling process Methods 0.000 claims description 45
- 238000005859 coupling reaction Methods 0.000 claims description 45
- 230000002159 abnormal effect Effects 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000012545 processing Methods 0.000 claims description 22
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 238000010248 power generation Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000011161 development Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000001808 coupling effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 8
- 230000005641 tunneling Effects 0.000 description 18
- 230000000694 effects Effects 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 238000013480 data collection Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005251 gamma ray Effects 0.000 description 2
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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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
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/706—Application in combination with an electrical generator
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- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention provides an advanced geological exploration device and method for a rock shield tunnel under a directional drilling coal mine, comprising the following steps: the method comprises the following steps of (1) designing a shield tunnel line; (2) exploring a directional drilling design; (3) exploring the directional drilling casing section for construction; and (4) exploring a directional drilling main hole construction: according to the design track of the exploration directional drilling, constructing a main hole by utilizing a directional drilling machine and a mining dynamic formation detection instrument while drilling by adopting a measurement while drilling directional drilling technology, wherein the mining dynamic formation detection instrument while drilling comprises a short-distance measurement and transmission probe tube and a long-distance signal transmission probe tube; (5) probing directional drilling branches Kong Shigong; (6) exploring the design track correction of the directional drilling; (7) probing the directional drilled hole; (8) remote exploration of geological anomalies; (9) shield tunnel line adjustment; and (10) tunnel shield construction. The invention has the advantages of long exploration distance, accurate control of the track, small drilling engineering quantity 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
Tunnel engineering is an indispensable component part of coal mining, and in high-gas and coal and gas outburst mines, a large amount of rock tunnel tunneling requirements exist. Aiming at the problems of low efficiency and high labor intensity of workers in the traditional rock tunnel tunneling process such as a drilling and blasting method, a freezing method and the like, in recent years, a mining shield tunneling machine is developed, a rock tunnel efficient shield tunneling technology is developed, the rock tunnel mechanical tunneling is realized, and the method is widely applied to the areas such as Anhui, shanxi and the like.
Considering that the shield tunneling machine system is huge, once the shield tunneling machine system is arranged and installed, the tunneling inclination angle and the azimuth of the shield tunneling machine system are fixed, the large-angle adjustment is difficult, and the advance geological exploration of a stepping down drilling machine in the shield tunneling construction process is impossible, so that the development conditions of coal beds and geological abnormal bodies on a tunneling line must be accurately ascertained before shield tunneling construction, the safety distance between the tunneling machine system and the coal beds is ensured during tunneling construction, and the occurrence of safety accidents caused by mistakenly uncovering the coal beds and geological structures is avoided. At present, geological exploration before shield tunneling is mainly carried out by adopting layer-penetrating drilling in a coal mine, and the following problems are urgently needed to be solved:
(A) The layer-penetrating drilling is constructed by using a coal roadway or a rock roadway, and a mine needing rock roadway tunneling often does not have the coal roadway and the rock roadway meeting the conditions; even if a part of mines are provided with coal roadways and rock roadways, the distance between the mines and a target area to be explored is generally long, the exploration engineering quantity is large, and the construction difficulty is high.
(B) The layer-penetrating drilling holes are intersected with the rock roadway tunneling line in a punctiform manner, so that the probing effect is improved, the number of the drilling holes to be constructed is large, and the probing cost is high; the layer-penetrating drilling is generally constructed by adopting a conventional rotary drilling process, the track is uncontrollable, and the exploration precision is low.
(C) The mine required to carry out the rock drift tunneling generally breaks soft outburst coal seam development widely, and when drilling and encountering broken soft coal seam, the hole wall is easy to collapse due to instability, and gas spraying holes are easy to occur, so that the accident of blocking and burying drilling or gas overrun is caused.
(D) The directional drilling technology can measure and control drilling tracks, but the existing equipment mainly measures the drilling tracks, lacks instruments for identifying formation while drilling and exploring geological anomalies, and mainly controls the tracks according to deviation of the actual drilling tracks and the design tracks during directional drilling construction, so that the drilling tracks can be identified after meeting coal beds and geological anomalies, and the safety risk is high when the drilling tracks meet the coal beds and geological anomalies.
(E) The coverage area of the drilling exploration is limited, so that 'one hole' is easy to exist, a large number of drilling holes are required to be constructed for ensuring the exploration effect, and the exploration cost and the construction period are increased.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a device and a method for advanced geological exploration of a directional drilling coal mine underground rock shield tunnel, which solve the technical problem of low precision of advanced geological exploration of the coal mine underground rock shield tunnel 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 a rock shield tunnel under a directional drilling coal mine comprises the following steps:
step one, designing a shield tunnel line:
Determining the control distance between a shield tunnel and a coal seam according to the mine early-stage geological survey data and mine working face arrangement, designing a shield tunnel line, and determining the space parameters of a control point according to the engineering control requirements of shield tunnel construction;
step two, exploring a directional drilling design:
Designing a probing directional drilling hole by taking a starting point of a shield tunnel line as an opening point, and determining plane coordinate parameters and profile coordinate parameters of the probing directional drilling hole;
Thirdly, exploring the construction of the directional drilling casing section:
setting a drilling site at the starting point of a shield tunnel line, constructing a casing section by using a directional drilling machine through a step-by-step rotary reaming technology, exiting a drilling tool in a hole after reaching a designed depth, inserting a casing hole for sealing, and connecting an orifice device;
Probing the main hole construction of directional drilling:
according to the design track of exploring directional drilling, constructing a main hole by using a directional drilling machine and a mining dynamic stratum detecting instrument while drilling and adopting a measurement while drilling directional drilling technology, and actively reserving 1 branching point every 20-40 m in the main hole construction process;
the mining while-drilling dynamic stratum detecting instrument comprises a short-distance measuring and transmitting probe tube and a long-distance signal transmission probe tube;
Step five, probing directional drilling branches Kong Shigong:
In the construction process of the main hole, increasing the inclination angle of the drilling hole every 50-60 m to upwards probe the coal bed, and measuring the radial stratum information of the drilling hole in real time by using a mining dynamic stratum detection instrument while drilling; when the mining while-drilling dynamic stratum detecting instrument detects that the branch hole is gradually approaching the coal bed, recording the up-down displacement and the left-right displacement of the coal detection point at the moment, calculating to obtain the real dip angle of the coal bed, then slowing down the drilling speed, continuously drilling forward for 1-3 m, and stopping drilling after determining that the coal bed is in front of the drilling hole;
step six, exploring the design track correction of the directional drilling:
dynamically correcting the design track of the exploration directional drilling according to the real inclination angle of the coal seam obtained by calculation in the step five;
Step seven, exploring the directional drilled hole:
Returning the drill to the reserved branching point in the fourth step, laterally drilling the branches, repeating the fourth to sixth steps to construct the main hole and the branch hole until reaching the design depth, and exiting the directional drilling tool in the hole;
step eight, geological abnormal body long-distance exploration:
the method comprises the steps of utilizing a directional drilling machine and a cabled directional drill rod to enable a mining geological abnormal body remote detecting instrument to be placed into a directional drilling hole, and detecting geological abnormal body development conditions in a columnar area of 30m in a main hole in real time in the drilling process;
step nine, shield tunnel line adjustment:
according to the ascertained conditions of the coal seam and the geological abnormal body, adjusting a shield tunnel design line, redefining control point space parameters, and making a geological abnormal body scheme in advance;
step ten, tunnel shield construction:
And carrying out tunnel shield construction according to the adjusted tunnel shield line until reaching a preset depth.
The invention also has the following technical characteristics:
Preferably, in the fourth step, the exploratory directional drilling includes a casing section, a main hole, and a branch hole, wherein: the casing section is drilled from a drilling site, passes through an orifice breaking belt upwards and enters a stable rock stratum, and then is put into a casing for sealing; the main hole plane extends along a shield tunnel design line, and is arranged at a position 2-5 m below a coal seam to be detected in a section; the branch holes are separated from the main hole, are arranged at intervals of 50-60 m, and are probed upwards to be close to the coal seam.
Preferably, in the fifth step, the method for calculating the true dip angle of the coal seam includes:
Wherein:
θ n is the real inclination angle of the coal bed between the nth branch hole coal detection point and the n-1 th branch hole coal detection point, and the unit is an angle;
z n、Zn-1 is the up-down displacement of the nth branch hole coal detection point and the n-1 th branch hole coal detection point, and the unit is m;
X n、Xn-1 is the horizontal displacement of the nth branch hole coal detection point and the n-1 branch hole coal detection point, and the unit is m.
Specifically, the near-distance measuring and transmitting probe tube comprises an outer bent tube, a screw rod, a universal torque transmission shaft and a driving shaft which are sequentially connected are arranged in the outer bent 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 far-distance signal transmitting probe tube is arranged at the tail end of the outer bent tube;
a measuring bin is arranged in the side wall of the bent outer tube 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 measurement sensor, the resistivity measurement sensor and the natural gamma measurement sensor; the inclination angle measuring sensor, the resistivity measuring sensor and the natural gamma measuring sensor are respectively connected with the short-distance data acquisition control module, and the short-distance data acquisition control module is connected with the short-distance 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 power supply module for power transmission, and the stabilized voltage power supply module supplies power for a close-range data acquisition control module, an inclination angle measurement sensor, a resistivity measurement sensor and a natural gamma measurement sensor;
The magnetic coupling rotor is fixedly arranged on the driving shaft, the magnetic coupling rotor is arranged opposite to the driving shaft, the rotating central axes of the magnetic coupling rotor and the driving shaft are parallel, the driving shaft drives the magnetic coupling rotor to rotate, and the magnetic coupling rotor is driven to rotate under the magnetic coupling effect when the magnetic coupling rotor rotates, so that the magnetic coupling rotor drives the generator to generate electricity.
Specifically, the long-distance signal transmission probe comprises an outer pipe of the instrument while drilling, an inner pipe of the instrument while drilling is coaxially arranged in the outer pipe of the instrument while drilling, and a water passing channel is arranged between the outer pipe of the instrument while drilling and the inner pipe of the instrument while drilling; the head end of the outer tube of the while-drilling instrument is provided with a near joint used for being connected with a near-distance measurement and transmission probe, and the tail end of the outer tube of the while-drilling instrument is provided with a drill rod joint used for being connected with a cabled directional drill rod;
A receiving bin is arranged in the side wall of the outer tube of the while-drilling instrument, which is close to the head end, a receiving bin cover is arranged on the receiving bin, and a close-range 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 adopting 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 used for wiring; the tail end of the inner tube of the while-drilling instrument is provided with a wired transmission joint which is fixed in the outer tube of the while-drilling instrument through a water passing locking nut;
The inner tube of the while-drilling instrument is internally packaged with a wired carrier transmission module, a power supply module, an upper data acquisition and processing module and an azimuth angle measurement module; the power supply module is connected with the wired transmission joint to take electricity from the outside, and supplies power for the upper data acquisition and processing module and the azimuth angle measuring module; the near-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 connector to transmit data.
The invention also protects an advanced geological exploration device of the rock shield tunnel under the directional drilling coal mine, which comprises a mining while-drilling dynamic stratum detection instrument, wherein the mining while-drilling dynamic stratum detection instrument comprises a short-distance measuring and transmitting probe tube and a long-distance signal transmission probe tube; the short-distance measuring and transmitting probe tube adopts the short-distance measuring and transmitting probe tube; the remote signal transmission probe tube adopts the remote signal transmission probe tube.
Compared with the prior art, the invention has the following technical effects:
In the method of the invention, directional drilling can be explored along the extending direction of the shield tunnel, the exploration distance is long, the track can be accurately controlled, the drilling engineering quantity is small, and the exploration result is accurate.
In the method of the invention, the directional drilling construction is convenient, and the coal roadway or the rock roadway does not need to be tunneled first.
In the method of the invention, (III) the mining geological abnormal body remote detecting instrument can detect geological abnormal bodies within the radial 30m range of the directional drilling hole, thereby expanding the coverage range of the directional drilling hole and ensuring the safety of shield construction.
According to the device disclosed by the invention, the mining dynamic formation detection instrument can measure the resistivity and natural gamma-ray radioactivity information of the near-bit formation in real time while drilling in the drilling process, so that the coal bed is identified in advance before the coal bed is broken and soft to protrude, the safety risk of coal seeing in drilling is avoided, and the formation identification precision is improved.
Drawings
FIG. 1 is a schematic diagram of a method for advanced geological exploration of a rock shield tunnel under a coal mine with directional drilling.
FIG. 2 is a schematic cross-sectional view of a close-range probe.
FIG. 3 is a schematic diagram of the connection relationship within a close-range probe.
Fig. 4 is a schematic cross-sectional view of a remote signaling probe.
The meaning of each reference numeral in the figures is: the method comprises the following steps of 1-shield tunnel, 2-coal bed, 3-directional drilling, 4-casing section, 5-main hole, 6-branch hole, 7-drilling site, 8-geological anomaly, 9-short-distance measuring and transmitting probe and 10-long-distance signal transmission probe;
901-bending an outer tube, 902-a screw rod, 903-a universal torque transmission shaft, 904-a driving shaft, 905-a drill bit joint, 906-a far joint, 907-a measuring bin, 908-a measuring bin cover, 909-a power supply unit, 910-a close-range wireless transmission module, 911-a close-range data acquisition control module, 912-an inclination angle measuring sensor, 913-a resistivity measuring sensor and 914-a natural gamma measuring sensor;
90901-a magnetic coupling rotor, 90902-a generator, 90903-a regulated power supply module, 90904-a rotating turbine with magnetism;
1001-an outer pipe of an instrument while drilling, 1002-an inner pipe of the instrument while drilling, 1003-a water passing channel, 1004-a near joint, 1005-a drill rod joint, 1006-a receiving bin, 1007-a receiving bin cover, 1008-a near distance wireless receiving module, 1009-an axial wire passing hole, 1010-a water passing fixing sleeve, 1011-a broken line hole, 1012-a wire transmission joint, 1013-a wire carrier transmission module, 1014-a power supply module, 1015-an upper data acquisition and processing module, 1016-an azimuth measuring module and 1017-a water passing locking nut.
The following examples illustrate the invention in further detail.
Detailed Description
All the components, devices, sensors and modules in the present invention are all known in the art unless otherwise specified. For example, directional drilling rigs and cabled directional drill pipes, as known in the art.
Based on the prior art introduced in the background art, the invention designs a coal mine underground rock shield tunnel advanced geological exploration method based on directional drilling aiming at the defects of large engineering quantity, low precision, small coverage area, large safety risk and the like in the prior coal mine underground rock shield tunnel advanced geological exploration.
The invention provides a coal mine underground rock shield tunnel advanced geological exploration method based on directional drilling. According to the method, firstly, a directional probing drilling hole is designed along the line direction of a shield tunnel according to the line design condition of the shield tunnel; then, carrying out exploration and directional drilling construction, utilizing the branch holes to upwards explore the coal bed, adopting a mining dynamic stratum detection instrument while drilling to measure stratum information of a near-bit in real time, identifying the coal bed in advance before drilling and encountering the coal bed, and calculating to obtain the real inclination angle of the coal bed; after the directional drilling construction is completed, a mining geological abnormal body remote detecting instrument is put in to detect geological abnormal bodies within the range of 30m in the radial direction of the directional drilling, so that the coverage range of the directional drilling is enlarged; and finally, according to occurrence conditions of the probed coal seam and geological abnormal body, adjusting the shield tunnel line, and guaranteeing the safety shield construction.
The method fully plays the advantages of accurate measurement and control of the directional drilling track, accurate identification of the stratum while drilling and large-scale exploration of the geological abnormal body, realizes advanced, accurate and regional exploration of the coal bed and the geological abnormal body on the shield tunnel line, and provides accurate reference for the engineering design of the mine tunnel.
The following specific embodiments of the present application are provided, and it should be noted that the present application is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical scheme of the present application fall within the protection scope of the present application.
Example 1:
The embodiment provides an advanced geological exploration device for a rock shield tunnel under a directional drilling coal mine, which comprises a mining while-drilling dynamic stratum detection instrument, wherein the mining while-drilling dynamic stratum detection instrument comprises a short-distance detection and transmission probe tube 9 and a long-distance signal transmission probe tube 10 as shown in figures 2 to 4;
The near-distance measuring and transmitting probe 9 comprises an outer bent pipe 901, a screw 902, a universal torque transmission shaft 903 and a driving shaft 904 which are sequentially connected are arranged in the outer bent pipe 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 far-distance signal transmission probe 10 is arranged at the tail end of the outer bent pipe 901;
In this embodiment, the curved outer tube 901, the threaded rod 902, the universal torque transmission shaft 903 and the drive shaft 904 are all manufactured as known in the art.
A measuring bin 907 is arranged in the side wall of the bent outer tube 901 close to the head end, 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 to the close-range data acquisition control module 911, and the close-range data acquisition control module 911 is connected to the close-range wireless transmission module 910.
In this embodiment, the close-range wireless transmission module 910, 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 all use products known in the art.
The long-distance signal transmission probe 10 comprises an instrument outer tube 1001 while drilling, an instrument inner tube 1002 while drilling is coaxially arranged in the instrument outer tube 1001 while drilling, and a water passing channel 1003 is arranged between the instrument outer tube 1001 while drilling and the instrument inner tube 1002 while drilling; the head end of the while-drilling instrument outer tube 1001 is provided with a near joint 1004 for being connected with a near-distance measurement and transmission probe 9, and the tail end of the while-drilling instrument outer tube 1001 is provided with a drill rod joint 1005 for being connected with a cabled directional drill rod;
A receiving bin 1006 is arranged in the side wall of the while-drilling instrument outer tube 1001, which is 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; 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 pipe 1002 is fixed in the while-drilling instrument outer pipe 1001 by adopting a water passing fixing sleeve 1010; the water-passing fixing sleeve 1010 is provided with a broken line hole 1011 communicated with the inside of the inner pipe 1002 of the while-drilling instrument, 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 inside of the inner pipe 1002 of the while-drilling instrument and can be wired; the tail end of the inner pipe 1002 of the while-drilling instrument is provided with a wire transmission connector 1012, and the wire transmission connector 1012 is fixed in the outer pipe 1001 of the while-drilling instrument through a water locking nut 1017;
The inner pipe 1002 of the while-drilling instrument is internally packaged with a wired carrier transmission module 1013, a power supply module 1014, an upper data acquisition processing module 1015 and an azimuth angle measuring module 1016; the power supply module 1014 is connected with the wired transmission connector 1012 to take power from outside, and the power supply module 1014 supplies power to the upper data acquisition processing module 1015 and the azimuth measuring module 1016; the near field wireless receiving module 1008 and the azimuth 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-range wireless receiving module 1008, the cable carrier transmitting module 1013, the power supply module 1014, the upper data acquisition processing module 1015 and the azimuth measuring module 1016 are all manufactured by the products known in the prior art.
In this embodiment, the water passing fixing sleeve 1010 and the water passing locking nut 1017 are both made of known products, and water passing holes are formed in the water passing fixing sleeve so that water can pass through smoothly.
As a preferred scheme of the embodiment, the drill bit joint 905 of the short-distance measuring and transmitting probe tube 9 is connected with a directional drill bit, the far joint 906 of the short-distance measuring and transmitting probe tube 9 and the near joint 1004 of the long-distance signal transmission probe tube 10 are female joints, the apertures are not necessarily the same, and the two joints are connected through a reducing connecting tube with male joints at two sections, so that the connection between the short-distance measuring and transmitting probe tube 9 and the long-distance signal transmission probe tube 10 is realized. The drill pipe joint 1005 of the remote signal transmission probe 10 is connected to a cabled directional drill pipe while the cable transmission joint 1012 is electrically connected to the cabled directional drill pipe.
As a preferable scheme of the present 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 driving 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 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 power generator is characterized by further comprising a magnetic rotating turbine 90904, wherein the magnetic rotating turbine 90904 is fixedly arranged on the driving shaft 904, the magnetic rotating turbine 90904 is arranged opposite to the magnetic coupling rotor 90901, the rotation central axes of the magnetic rotating turbine 90904 and the driving shaft 904 are parallel, the magnetic coupling rotor 90901 is driven by the driving shaft 904 to rotate, and the magnetic coupling rotor 90901 is driven by the magnetic coupling rotor 90901 to rotate when the magnetic rotating turbine 90904 rotates, so that 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 the embodiment, the magnetic coupling power generation unit can utilize the power of the driving shaft to generate power automatically, so that the power supply for the short-distance measuring and transmitting probe tube 9 is better. Specifically, the magnetic rotating turbine 90904 and the magnetic coupling rotor 90901 are made of known products, permanent magnets are mounted on the magnetic rotating turbine 90904 and the magnetic coupling rotor 90901, the driving shaft 904 drives the front pilot bit to break rock and simultaneously drives the magnetic turbine 90904 to rotate, the magnetic rotating turbine 90904 is driven by the driving shaft 904 to rotate, the magnetic coupling rotor 90901 is driven to rotate through the magnetic coupling effect between the magnetic rotating 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 stratum detecting instrument of the embodiment works, in the short-distance measuring and transmitting probe tube 9, the screw 902 is driven to rotate by high-pressure flushing fluid provided by the directional drilling machine and is transmitted to the driving shaft 904 through the universal torque transmission shaft 903, and the driving shaft 904 drives the directional drill bit in front to break rocks. 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 respectively collect the inclination angle of the drill hole, the resistivity of the stratum and the natural gamma radioactivity of the stratum and transmit the collected inclination angle, the resistivity of the stratum and the natural gamma radioactivity to the close-range data collection control module 911, and after the close-range data collection control module 911 processes data, the close-range wireless transmission module 910 is controlled and driven to emit measured data.
In the remote signal transmission probe 10, the power supply module 1014 is connected to the cable transmission connector 1012 to externally power the cable directional drill rod, and the power supply module 1014 supplies power to the upper data acquisition processing module 1015 and the azimuth measuring module 1016. Under the control and driving of the upper data acquisition and processing module 1015, the short-range wireless receiving module 1008 receives the data transmitted by the short-range wireless transmitting module 910 and transmits the data to the upper data acquisition and processing module 1015, and the upper data acquisition and processing module 1015 measures the azimuth of the borehole by using the azimuth measuring module 1016, and controls 1012 the wired carrier transmission module to transmit the azimuth of the borehole, the inclination angle of the borehole, the formation resistivity and the natural gamma-ray radioactive data of the formation to the orifice in real time through the wired transmission connector 1012 and the cabled directional drill rod connected to the wired transmission connector.
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 as shown in fig. 1:
step one, designing a line of a shield tunnel 1:
determining the control distance between the shield tunnel 1 and the coal seam 2 according to the mine early-stage geological survey data and mine working face arrangement, designing a shield tunnel 1 line, and determining the space parameters of control points according to the engineering control requirements of the shield tunnel 1 construction;
step two, exploring a directional drilling 3 design:
Designing a probing directional drilling hole 3 by taking a line starting point of a shield tunnel 1 as an opening point, and determining plane coordinate parameters and section coordinate parameters of the probing directional drilling hole 3;
thirdly, exploring the construction of the casing section 4 of the directional drilling 3:
Setting a drilling site 7 at the line starting point of the shield tunnel 1, constructing a casing section 4 by using a directional drilling machine through a step-by-step rotary reaming technology, exiting a drilling tool in a hole after reaching a designed depth, inserting a casing hole for sealing, and connecting an orifice device;
Step four, exploring a main hole 5 of the directional drilling 3 for construction:
According to the design track of the exploration directional drilling 3, constructing a main hole 5 by utilizing a directional drilling machine and a mining while-drilling dynamic stratum detecting instrument and adopting a measurement while drilling directional drilling technology, and actively reserving 1 branching point every 20-40 m in the construction process of the main hole 5;
Preferably, the mining while-drilling dynamic stratum detecting instrument comprises a short-distance measuring and transmitting probe tube 9 and a long-distance signal transmission probe tube 10; the short-distance measuring and transmitting probe 9 adopts the short-distance measuring and transmitting probe 9 in the embodiment 1; the remote signaling probe 10 employs the remote signaling probe 10 set forth in embodiment 1.
Preferably, in step four, the exploratory directional drilling 3 comprises a casing section 4, a main bore 5 and a branch bore 6, wherein: the casing section 4 is perforated from the drilling site 6, passes through the orifice breaking belt upwards and enters the stable rock stratum, and then is put into the casing for sealing; the plane of the main hole 5 extends along the designed line of the shield tunnel 1, and is arranged at the position 2-5 m below the coal seam 2 to be detected on the section; the branch holes 6 are separated from the main holes 5, are arranged at intervals of 50-60 m, and are probed upwards to be close to the coal seam 2.
Fifthly, exploring branch holes 6 of the directional drilling 3 for construction:
in the construction process of the main hole 5, increasing the inclination angle of the drilling hole every 50-60 m to upwards probe the coal bed 2, and measuring the radial stratum information of the drilling hole in real time by using a mining dynamic stratum detection instrument while drilling; when the mining while-drilling dynamic stratum detecting instrument detects that the branch hole 6 is gradually approaching the coal bed 2, recording the up-down displacement and the left-right displacement of the coal detection point at the moment, calculating to obtain the real dip angle of the coal bed 2, then slowing down the drilling speed, continuing to drill forward for 1-3 m, and stopping drilling after determining that the coal bed 2 is in front of the drilling hole;
preferably, in the fifth step, the method for calculating the true dip angle of the coal seam 2 includes:
Wherein:
θ n is the real inclination angle of the coal bed between the nth branch hole coal detection point and the n-1 th branch hole coal detection point, and the unit is an angle;
z n、Zn-1 is the up-down displacement of the nth branch hole coal detection point and the n-1 th branch hole coal detection point, and the unit is m;
X n、Xn-1 is the horizontal displacement of the nth branch hole coal detection point and the n-1 branch hole coal detection point, and the unit is m.
Step six, exploring the design track correction of the directional drilling 3:
dynamically correcting the design track of the exploration directional drilling hole 3 according to the real inclination angle of the coal bed 2 obtained by calculation in the step five;
Step seven, exploring the hole completion of the directional drilling 3:
returning the drill to the reserved branching point in the fourth step, laterally drilling branches, repeating the fourth to sixth steps to construct the main hole 5 and the branching hole 6 until reaching the design depth, and exiting the directional drilling tool in the hole;
step eight, remotely exploring the geological abnormal body 8:
the directional drilling machine and the cabled directional drilling rod are utilized to enable a mining geological abnormal body remote detecting instrument 38 to be placed into the directional drilling hole 3 to be detected, and the development condition of the geological abnormal body 8 in a radial 30m columnar area of the main hole 5 is detected in real time in the process of placing;
The mining geological anomaly remote detection instrument adopts an instrument known in the prior art, for example, adopts a Chinese patent application with the application number of 202010847622.3, the application publication number of CN112112624A and the name of 'a coal mine underground multi-parameter drilling geophysical prospecting fine remote detection device and method', and the 'a coal mine underground multi-parameter drilling geophysical prospecting fine remote detection device' is used as the 'mining geological anomaly remote detection instrument' in the invention, so that the geological anomaly 8 is remotely detected. The specific probing method also adopts the method disclosed in the Chinese patent.
Step nine, line adjustment of a shield tunnel 1:
According to the conditions of the coal seam 2 and the geological abnormal body 8, adjusting the designed line of the shield tunnel 1, redetermining 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 carrying out tunnel shield construction according to the adjusted tunnel shield 1 line until reaching a preset depth.
Claims (5)
1. A method for advanced geological exploration of a rock shield tunnel under a directional drilling coal mine comprises the following steps:
step one, designing a line of a shield tunnel (1):
Determining the control distance between the shield tunnel (1) and the coal seam (2) according to the mine early-stage geological survey data and mine working face arrangement, designing a shield tunnel (1) line, and determining the space parameters of control points according to the engineering control requirements of the shield tunnel (1) construction;
Step two, exploring a directional drilling (3) design:
designing a exploration directional drilling hole (3) by taking a line starting point of a shield tunnel (1) as an opening point, and determining plane coordinate parameters and section coordinate parameters of the exploration directional drilling hole (3);
thirdly, exploring a casing section (4) of the directional drilling (3) for construction:
Setting a drilling field (7) at the line starting point of the shield tunnel (1), constructing a casing section (4) by using a directional drilling machine through a step-by-step rotary reaming technology, exiting a drilling tool in a hole after reaching a designed depth, and plugging a casing hole and connecting an orifice device;
the method is characterized in that:
Step four, exploring a main hole (5) of the directional drilling (3) for construction:
According to the design track of the exploration directional drilling (3), constructing a main hole (5) by utilizing a directional drilling machine and a mining dynamic stratum detection instrument while drilling and adopting a measurement while drilling directional drilling technology, and actively reserving 1 branching point every 20-40 m in the construction process of the main hole (5);
the mining while-drilling dynamic stratum detecting instrument comprises a short-distance measuring and transmitting probe tube (9) and a long-distance signal transmission probe tube (10);
fifthly, exploring branch holes (6) of the directional drilling holes (3) for construction:
In the construction process of the main hole (5), increasing the inclination angle of the drilling hole every 50-60 m to probe the coal bed (2) upwards, and measuring the radial stratum information of the drilling hole in real time by using a mining dynamic stratum detecting instrument while drilling; when the mining while-drilling dynamic stratum detecting instrument detects that the branch hole (6) is gradually approaching the coal bed (2), recording the up-down displacement and the left-right displacement of the coal detection point at the moment, calculating to obtain the real dip angle of the coal bed (2), then slowing down the drilling speed, continuously drilling forward for 1-3 m, and stopping drilling after determining that the coal bed (2) is in front of the drilling hole;
step six, exploring the design track correction of the directional drilling (3):
Dynamically correcting the design track of the exploration directional drilling hole (3) according to the real inclination angle of the coal bed (2) obtained by calculation in the step five;
Step seven, exploring the hole of the directional drilling (3):
Backing the drill to the reserved branching point in the fourth step, laterally drilling branches, repeating the fourth to sixth steps to construct the main hole (5) and the branching hole (6) until reaching the design depth, and backing out the directional drilling tool in the hole;
step eight, remotely exploring the geological abnormal body (8):
a directional drilling machine and a cabled directional drill rod are utilized to enable a mining geological abnormal body remote detecting instrument (38) to be lowered into a directional drilling hole (3), and the development condition of the geological abnormal body (8) in a radial 30m columnar area of a main hole (5) is detected in real time in the process of lowering the drilling hole;
step nine, line adjustment of a shield tunnel (1):
According to the conditions of the coal seam (2) and the geological abnormal body (8), adjusting the designed line of the shield tunnel (1), redetermining the space parameters of the control points, and making a scheme of the geological abnormal body (8) in advance;
step ten, tunnel shield construction:
Carrying out tunnel shield construction according to the adjusted tunnel shield (1) line until reaching a preset depth;
The near-distance measuring and transmitting probe tube (9) comprises an outer bent tube (901), a screw (902), a universal torque transmission 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 far-distance signal transmitting 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 tube (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);
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 regulated power supply module (90903) for power transmission, and the regulated power supply module (90903) is used for supplying power for 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 power generator comprises a driving shaft (90902), and is characterized by further comprising a magnetic rotating turbine (90904), wherein the magnetic rotating turbine (90904) is fixedly arranged on the driving shaft (904), the magnetic rotating turbine (90904) is arranged opposite to the magnetic coupling rotor (90901), the rotation central axes of the magnetic rotating turbine and the driving shaft are parallel, the driving shaft (904) drives the magnetic rotating turbine (90904) to rotate, and 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 power generator (90902) to generate power;
The long-distance signal transmission probe tube (10) comprises an instrument outer tube (1001) while drilling, an instrument inner tube (1002) while drilling is coaxially arranged in the instrument outer tube (1001) while drilling, and a water passing channel (1003) is arranged between the instrument outer tube (1001) while drilling and the instrument inner tube (1002) while drilling; the head end of the instrument outer tube (1001) while drilling is provided with a near joint (1004) used for being connected with a near-distance measurement and transmission probe tube (9), and the tail end of the instrument outer tube (1001) while drilling is provided with a drill rod joint (1005) used for being connected with a cabled directional drill rod;
A receiving bin (1006) is arranged in the side wall of the outer tube (1001) of the while-drilling instrument, which is 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 formed in the bottom of the receiving bin (1006); the head end of the while-drilling instrument inner pipe (1002) is fixed in the while-drilling instrument outer pipe (1001) by adopting a water passing fixing sleeve (1010); the water passing fixing sleeve (1010) is provided with a broken line hole (1011) communicated with the inside of the inner pipe (1002) of the while-drilling instrument, 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 inside of the inner pipe (1002) of the while-drilling instrument to enable wiring; the tail end of the inner pipe (1002) of the while-drilling instrument is provided with a wired transmission joint (1012), and the wired transmission joint (1012) is fixed in the outer pipe (1001) of the while-drilling instrument through a water passing locking nut (1017);
A wired carrier transmission module (1013), a power supply module (1014), an upper data acquisition processing module (1015) and an azimuth angle measuring module (1016) are packaged in the inner pipe (1002) of the while-drilling instrument; the power supply module (1014) is connected with the wired transmission connector (1012) to take electricity from outside, and the power supply module (1014) supplies power for the upper data acquisition processing module (1015) and the azimuth angle measuring module (1016); the near-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.
2. The advanced geological exploration method of a rock shield roadway under a directional drilling coal mine as claimed in claim 1, wherein in the fourth step, 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 the drilling site (6), passes through the orifice breaking belt upwards and enters the stable rock stratum, and then is put into the casing for sealing; the plane of the main hole (5) extends along the designed line of the shield tunnel (1), and is arranged at the position 2-5 m below the coal bed (2) to be detected on the section; the branch holes (6) are separated from the main holes (5), are arranged at intervals of 50-60 m, and are detected upwards to be close to the coal bed (2).
3. The advanced geological exploration method of the rock shield tunnel under the directional drilling coal mine, as claimed in claim 1, is characterized in that in the fifth step, the calculation method of the true dip angle of the coal seam (2) is as follows:
Wherein:
θ n is the real inclination angle of the coal bed between the nth branch hole coal detection point and the n-1 th branch hole coal detection point, and the unit is an angle;
z n、Zn-1 is the up-down displacement of the nth branch hole coal detection point and the n-1 th branch hole coal detection point, and the unit is m;
X n、Xn-1 is the horizontal displacement of the nth branch hole coal detection point and the n-1 branch hole coal detection point, and the unit is m.
4. The advanced geological exploration device for the underground rock shield tunnel of the directional drilling coal mine is characterized by comprising a mining while-drilling dynamic stratum detection instrument, wherein the mining while-drilling dynamic stratum detection instrument comprises a short-distance measuring and transmitting probe tube (9) and a long-distance signal transmission probe tube (10);
The near-distance measuring and transmitting probe tube (9) comprises an outer bent tube (901), a screw (902), a universal torque transmission 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 far-distance signal transmitting 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 tube (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);
The long-distance signal transmission probe tube (10) comprises an instrument outer tube (1001) while drilling, an instrument inner tube (1002) while drilling is coaxially arranged in the instrument outer tube (1001) while drilling, and a water passing channel (1003) is arranged between the instrument outer tube (1001) while drilling and the instrument inner tube (1002) while drilling; the head end of the instrument outer tube (1001) while drilling is provided with a near joint (1004) used for being connected with a near-distance measurement and transmission probe tube (9), and the tail end of the instrument outer tube (1001) while drilling is provided with a drill rod joint (1005) used for being connected with a cabled directional drill rod;
A receiving bin (1006) is arranged in the side wall of the outer tube (1001) of the while-drilling instrument, which is 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 formed in the bottom of the receiving bin (1006); the head end of the while-drilling instrument inner pipe (1002) is fixed in the while-drilling instrument outer pipe (1001) by adopting a water passing fixing sleeve (1010); the water passing fixing sleeve (1010) is provided with a broken line hole (1011) communicated with the inside of the inner pipe (1002) of the while-drilling instrument, 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 inside of the inner pipe (1002) of the while-drilling instrument to enable wiring; the tail end of the inner pipe (1002) of the while-drilling instrument is provided with a wired transmission joint (1012), and the wired transmission joint (1012) is fixed in the outer pipe (1001) of the while-drilling instrument through a water passing locking nut (1017);
A wired carrier transmission module (1013), a power supply module (1014), an upper data acquisition processing module (1015) and an azimuth angle measuring module (1016) are packaged in the inner pipe (1002) of the while-drilling instrument; the power supply module (1014) is connected with the wired transmission connector (1012) to take electricity from outside, and the power supply module (1014) supplies power for the upper data acquisition processing module (1015) and the azimuth angle measuring module (1016); the near-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.
5. The advanced geological exploration device for the rock shield tunnel under the directional drilling coal mine, as claimed in claim 4, wherein 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 regulated power supply module (90903) for power transmission, and the regulated power supply module (90903) is used for supplying 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 power generator comprises a driving shaft (90902), and is characterized by further comprising a magnetic rotating turbine (90904), wherein the magnetic rotating turbine (90904) is fixedly arranged on the driving shaft (904), the magnetic rotating turbine (90904) is oppositely arranged with the magnetic coupling rotor (90901) and is parallel to the rotating central axis of the magnetic coupling rotor (90901), the driving shaft (904) drives the magnetic rotating turbine (90904) to rotate, and 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 power generator (90902) to generate power.
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| 巷道掘进期间富水区域探查定向钻进技术及围岩改造技术应用;王继承;;煤矿安全;20180820(第08期);全文 * |
| 精准定向钻进技术在煤矿水害治理应用;石浩;;煤炭工程;20180322(第03期);全文 * |
| 随钻测量定向钻进技术在煤矿井下地质勘探中的应用;石智军;许超;李泉新;张杰;;煤矿安全;20141220(第12期);全文 * |
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