LU500191B1 - Mining Borehole Radar Advanced Water Detection and Forecasting Device and Method - Google Patents

Abstract

Disclosed is a mining borehole radar advanced water detection and forecasting device and method, wherein a signal output end of a radar wave signal transmission module is connected to a signal input end of each transmitting antenna, and a signal input end of a radar wave signal receiving module is connected to a signal output end of each receiving antenna. Communication ends of the radar wave signal transmission module and the radar wave signal receiving module are connected to a signal transmission communication end and a signal receiving communication end of a single chip microcomputer, communication ends of a memory and a three-dimensional electronic compass are connected to a data storage communication end and a compass data communication end of the single chip microcomputer, and a data communication end of the single chip microcomputer is connected to a data communication end of a field host.

Description

Mining Borehole Radar Advanced Water Detection and Forecasting Device and Method

TECHNICAL FIELD

[0001] The present invention relates to the technical field of radar wave detection using the geophysics, in particular to a mining borehole radar advanced water detection and forecasting device and method.

BACKGROUND

[0002] Advanced water detection and forecasting for coals mainly refers to detection in tunnel and roadway driving directions and working faces at a driving roadway face by virtue of a direct or indirect method to determine whether there is a harmful geologic structure or a water-enriching body or a diversion channel forwardly, thereby providing detailed detection data for safe tunneling.

[0003] A drilling method is an existing direct method for advanced coal detection, and a geophysical detection method is an indirect method, wherein the drilling method has a rather reliable drilling result, but has a longer construction period, a higher cost and greater impact on normal production of the tunnels and the roadways.

[0004] The existing geophysical detection methods for advanced detection mainly include three-pole advanced detection method, transient electromagnetic method for mine, seismic wave method, electrical method for borehole and electromagnetic method for borehole.

[0005] The above-mentioned geophysical methods are a borehole detection method after tunnels, roadways, working faces or boreholes are drilled. Due to great interference on the roadway or the working face, various metal facilities, including road header in the tunnel or the roadway, baseplate rail, steel I-beam support, anchor rod support, and belt conveying support, have greater impact on observation results of the three-pole advanced detection method and the transient electromagnetic method for mine. Meanwhile, site operation design, data observation and achievement analysis are complicated, and detection parameters are single, namely only one parameter (electrical resistivity) is used, 1 the capability to exclude the multiplicity is poor and the multiplicity is present in the result. If the foregoing various methods are combined, the advanced forecasting cost is increased greatly; for the borehole detection method after the borehole is drilled, the borehole cannot be detected due to frequent collapse thereof caused by a soft coalbed.

The seismic wave method mainly solves the problem of a geological structural interface, but cannot explain the structural water abundance; the electrical method for borehole and the electromagnetic method for borehole cannot judge and explain the size and distance of the water-bearing body.

[0006] References: Principle of Electromagnetic Sounding Method, 1990, Geological Publishing House, written by Piao Huarong; Principle of Time-domain Electromagnetic Method, published by the Central South University in 2007, written by Niu Zhilian; Ground Penetrating Radar Theory and Applications, 2006, Science Press, written by Su Yi, Huang Chunlin and Lei Wentai; and Principle and Application of Ground Penetrating Radar, published by the Science Press in 2006, written by Zeng Zhaofa, et al.

SUMMARY

[0007] The present invention aims to provide a mining borehole radar advanced water detection and forecasting device and method. Through the device and the method, the borehole, which 1s being drilled in a driving tunnel, a roadway face and a working face, can be detected to discover a water-enriching body or a diversion channel and other harmful geological bodies within 0-30 m around the borehole, thereby carrying out refined and effective detection and forecasting.

[0008] To achieve the purpose, a mining borehole radar advanced water detection and forecasting device designed by the present invention, comprising a field host, a probe, a network cable, a push bar, transmitting antennae arranged in the probe, receiving antennae, a radar wave signal transmission module, a radar wave signal receiving module, a single chip microcomputer, a battery, a probe interface, a first memory and a three-dimensional electronic compass, wherein a signal output end of the radar wave signal transmission module is connected to a signal input end of each transmitting antenna, and a signal input end of the radar wave signal receiving module is connected to a signal output end of each receiving antenna, communication ends of the radar wave signal transmission module and the radar wave signal receiving module are respectively 2 connected to a signal transmission communication end and a signal receiving communication end of the single chip microcomputer, communication ends of the first memory and the three-dimensional electronic compass are respectively connected to a data storage communication end and a compass data communication end of the single chip microcomputer, and a data communication end of the single chip microcomputer is connected to a data communication end of the field host through a probe interface and a network cable. the battery is used for respectively powering the radar wave signal transmission module, the radar wave signal receiving module, the three-dimensional electronic compass and the single chip microcomputer;

[0009] the radar wave signal transmission module and the transmitting antennae can be controlled to transmit pulse broadband radar waves around a borehole to be measured by the single chip microcomputer, the radar wave signal receiving module and the receiving antennae are used for receiving direct radar wave signals transmitted by the transmitting antennae and radar wave signals reflected by a rock mass around the borehole to be measured;

[0010] the single chip microcomputer is used for digitizing the received direct radar wave signals and reflected radar wave signals to obtain direct radar wave and reflected radar wave digital signals, and conveying the direct radar wave and reflected radar wave digital signals and borehole trajectory data measured by the three-dimensional electronic compass to the field host or storing into the first memory, and the field host is used for generating a radar wave nomogram and a borehole trajectory chart correspondingly according to the foregoing direct radar wave and reflected radar wave digital signals and the foregoing borehole trajectory data.

[0011] A method for advanced water detection and forecasting using a mining borehole radar advanced water detection and forecasting device, the method comprising the following steps:

[0012] step 1: placing the probe to an orifice of a borehole to be measured;

[0013] step 2: controlling, by the field host, the radar wave signal transmission module to allow the transmitting antennae to transmit pulse broadband radar waves via a single chip microcomputer;

[0014] step 3: receiving, by the receiving antennae, direct radar wave signals transmitted by the transmitting antennae and radar wave signals reflected by a rock mass around the borehole to be measured, carrying out signal pre-processing and digitalizing, by the radar 3 wave signal receiving module and the single chip microcomputer, for the direct radar wave signals and the reflected radar wave signals received by the receiving antennae, and then transmitting, by the single chip microcomputer, the direct radar wave and reflected radar wave digital signals to the field host; and meanwhile, measuring, by a three-dimensional electronic compass, coordinate data at the orifice of the borehole to be measured, transmitting the coordinate data at the orifice of the borehole to be measured to the single chip microcomputer, and transmitting, by the single chip microcomputer, the coordinate data at the orifice of the borehole to be measured to the field host;

[0015] step 4: using the push bar to gradually propel the probe form the orifice to a bottom of the borehole to be measured, scanning and detecting the borehole to be measured point by point by virtue of the advanced detection method for the borehole to be measured in the steps 2-3, namely, scanning and detecting every preset detection point to obtain the direct radar wave signal and the reflected radar wave signal of every preset detection point from the orifice to the bottom of the borehole to be measured as well as the coordinate data of every preset detection point, thus obtaining radar wave data of all preset detection points from the orifice to the bottom of the borehole to be measured as well as trajectory data of the borehole to be measured;

[0016] step 5: building, by the field host, a digital oscillogram according to radar wave time and a radar wave amplitude in radar wave data of all preset detection points from the orifice to the bottom of the borehole to be measured, in order to form a two-dimensional digital radar wave nomogram of an overall depth of the borehole to be measured, and drawing, by the field host, a trajectory chart of the borehole to be measured according to the received trajectory data of the borehole to be measured;

[0017] step 6: finding out, by the field host, all signals reflected by the radar waves according to the two-dimensional digital radar wave nomogram of the overall depth of the borehole to be measured as well as the trajectory chart of the borehole to be measured obtained in step 5, judging whether all radar wave reflection signals include radar reflection wave signals generated from a water-bearing body according to an amplitude of the radar wave reflection signals, and calculating positions, relative to the borehole to the measured, of the reflected radar waves generated from the water-bearing body according to time and amplitude characteristics of the reflected radar waves, thus determining whether the rock mass around the borehole to be measured has the water-bearing body, and obtaining the position of the water-bearing body and a distance between the 4 water-bearing body and the borehole to be measured, and making a forecast on the basis to realize the advanced water detection and forecasting of the borehole to be measured.

[0018] According to the present invention, the advanced detection and forecasting can be conducted for tunneling or roadway driving boreholes. Compared with the existing advanced forecasting equipment and methods, the present invention mainly has the following beneficial effects:

[0019] (1) According to the present invention, the pulse broadband radar wave transmission and receiving probes are disposed in the boreholes to detect the geologic features of strata within different radiuses around the borehole by virtue of transmitting pulse broadband radar waves, and determine whether there is water-bearing body and other harmful geologic bodies within a certain range around the borehole. The probe is propelled in the borehole for detection at a certain detection point pitch, and the stratum features within a cylinder around the entire borehole can be detected by making the best of the overall depth of the borehole, with a wide detection range and massive information; the test results of the adjacent test points can be verified mutually, and thus are accurate and reliable. Besides, according to the present invention, the number of detection boreholes can be decreased greatly to save time and cost as well as improve work efficiency, and meanwhile to improve the capability to exclude hidden flood disasters in the course of coal mine underground roadway driving.

[0020] (2) According to the present invention, the pulse broadband radar waves in the borehole are transmitted, and the volume of detection data is large; the underground man-made strong interference background is avoided in the borehole (due to single surrounding rock around the borehole, rail without roadheader and baseplate, steel I-beam support, anchor bolt support, travelling belt support and other metal facilities), in order to improve the weak signal identification and handling capacities, thereby ensuring the detection results to be accurate and reliable and providing the more scientific basis to guide roadway driving,

[0021] (3) According to the present invention, detection results may be displayed in real time when the field host is used for detection, and automatically analyzed to generate an image and forecast without complicated manual data analysis and handling stages; and the reliable analysis and forecasting data can be given to geological detection personnel rapidly. Hence, the device according to the present invention has the advantages of operability, validity and practicality.

5

[0022] The advanced detection for a roadway borehole is realized by the present invention, namely, the advanced roadway borehole (drilling in front of tunnel heading face, and drilling by a square drill at the relative heading face) 1s used for geophysical prospecting, fine scanning and detection at a close range is conducted within a range in a radius of 0-30 m radius around the borehole, which is an organic combination of drilling and geophysical prospecting. This not only improves the geophysical prospecting precision, but also decreases the drilled boreholes, thereby realizing the precise advanced detection for the driving roadway.

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Fig. 1 isa using state of a structure according to the present invention;

[0024] Fig. 2 is a structure diagram of a field host according to the present invention;

[0025] Fig. 3 is a structure diagram of a probe according to the present invention;

[0026] Fig. 4 is a schematic diagram of the internal structure of a PVC plastic pipe in a probe according to the present invention.

[0027] In the figures, 1-field host, 1.1-central processing unit, 1.2-second memory,

1.3-human-computer interaction equipment, 1.4-host interface,1.5-system bus, 2-probe,

2.1-transmitting antenna, 2.2-receiving antenna, 2.3-radar wave signal transmission module, 2.4-radar wave signal receiving module, 2.5-single chip microcomputer,

2.6-battery, 2.7-probe interface, 2.8-first memory, 2.9-three-dimensional electronic compass, 3-network cable, 4-push bar, 5-borehole to be measured, 6-cylindrical mounting base for transmitting antenna, 7-cylindrical mounting base for receiving antenna, 8-roadway, 9-surrounding rock, 10-PVC plastic pipe.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] A detailed description of one or more embodiments of the invention is presented herein by way of exemplification and with reference to the Figures:

[0029] A mining borehole radar advanced water detection and forecasting device shown in Figs. 1-4, comprising a field host 1 (arranged in a roadway 9), a probe 2, a network cable 3, a push bar 4, transmitting antennae 2.1 arranged in the probe 2, receiving antennae 2.2, a radar wave signal transmission module 2.3, a radar wave signal receiving module 2.4, a single chip microcomputer 2.5, a battery 2.6, a probe interface 2.7, a first 6 memory 2.8 and a three-dimensional electronic compass 2.9, wherein a signal output end of the radar wave signal transmission module 2.3 is connected to a signal input end of each transmitting antenna 2.1 and a signal input end of the radar wave signal receiving module 2.4 is connected to a signal output end of each receiving antenna 2.2; communication ends of the radar wave signal transmission module 2.3 and the radar wave signal receiving module 2.4 are respectively connected to a signal transmission communication end and a signal receiving communication end of the single chip microcomputer 2.5, communication ends of the first memory 2.8 and the three-dimensional electronic compass 2.9 are respectively connected to a data storage communication end and a compass data communication end of the single chip microcomputer 2.5, and a data communication end of the single chip microcomputer 2.5 is connected to a data communication end of the field host 1 through the probe interface

2.7 and the network cable 3; the battery 2.6 is used for respectively powering the radar wave signal transmission module 2.3, the radar wave signal receiving module 2.4, the three-dimensional electronic compass 2.9 and the single chip microcomputer 2.5.

[0030] The radar wave signal transmission module 2.3 and the transmitting antennae 2.1 can be controlled to transmit pulse broadband radar waves around a borehole to be measured 5 by the single chip microcomputer 2.5, the radar wave signal receiving module

2.4 and the receiving antennae 2.2 are used for receiving direct radar wave signals transmitted by the transmitting antennae 2.1 and radar wave signals reflected by rock mass (namely surrounding rock 9) around the borehole to be measured 5; the time and signal amplitude of the reflected radar wave signals reaching the receiving antenna 2.2 are associated with the property of rock mass around the borehole to be measured 5 and a distance to a structural plane of the rock mass.

[0031] The single chip microcomputer 2.5 is used for digitizing the received direct radar wave signals and the reflected radar wave signals to obtain direct radar wave and reflected radar wave digital signals, and conveying the direct radar wave and reflected radar wave digital signals and borehole trajectory data measured by the three-dimensional electronic compass 2.9 to the field host 1 or storing into the first memory 2.8 through the probe interface 2.7 and the network cable 3, and the field host 1 is used for generating a radar wave nomogram and a borehole trajectory chart correspondingly according to the foregoing direct radar wave and reflected radar wave digital signals and the foregoing borehole trajectory data. With the following radar theories in the fields of geological 7 survey, environment and engineering as well as non-destructive detection and the like and according to the time and amplitude features of the reflection waves as well as the positions of the reflection waves in the detection borehole 5, the field host 1 can determine the water-bearing body in the rock mass around the borehole as well as the position of the water-bearing body and the distance to the borehole, and can make a forecast on this basis, thereby realizing the advanced detection and forecasting of the borehole to be measured.

[0032] Any geophysical detection method involves detection by virtue of the differences in physical properties of a medium, and electrical resistivity, dielectric constant and magnetoconductivity are main parameters to characterize the electromagnetic property of the medium. For the application of a ground penetrating radar in the fields of geological survey, environment and engineering as well as non-destructive detection, the main factor to determine the speed is the dielectric constant. A dielectric constant of general rock is small within 4-7, and a dielectric constant of water is 80. The relation of Formula (1) may be deduced from a propagation velocity V of radar waves in the rock. For the radar wave reflection coefficient of the radar waves entering a water-bearing body medium from the rock mass medium around the borehole in Formula (2), the amplitude of the reflected radar waves can be deduced from the Formula (2) when the radar waves meet the water-bearing body.

i 20° [0033] VR ms)

VE

[0034] Where: v is propagation velocity of the radar waves in a rock mass, and € is dielectric constant of the rock mass. Vi | En

[0035] Atom fem pay V2 \ &,

[0036] Where: n is reflectivity of the radar waves, and V1 is propagation velocity of the radar waves in a rock mass medium; V2 is propagation velocity of the radar waves in a water medium, el - dielectric constant of a rock mass medium 1, 2 - dielectric constant of a rock mass medium 2.

[0037] Calculation formula for a propagation distance of radar reflection waves:

[0038] À = x 2 sxe axe meres {37 8

[0039] Where, R 1s distance of the radar reflection wave propagated to a borehole measurement point within a certain time; v 1s propagation velocity of the radar waves in the rocks around the borehole, and t is certain propagation time of the radar reflection waves.

[0040] The borehole detection radar wave nomogram, the borehole trajectory chart and the distance calculation process are prior arts. See the references: Ground Penetrating Radar Theory and Applications, 2006, Science Press, written by Su Yi, Huang Chunlin and Lei Wentai; Principle and Application of Ground Penetrating Radar, published by the Science Press in 2006, written by Zeng Zhaofa, et al.

[0041] In the foregoing technical solution, the field host 1 comprises a central processing unit 1.1, a second memory 1.2, human-computer interaction equipment 1.3, a host interface 1.4 and a system bus 1.5, wherein communication ends of the second memory 1.2, the human-computer interaction equipment 1.3 and the central processing unit 1.1 are connected to the system bus 1.5 connected to the probe interface 2.7 through the host interface 1.4. The man-computer interaction equipment 1.3 comprises a touch screen, a display screen, a USB interface and a photoelectric knob (equivalent to a computer mouse). The host interface 1.4 is connected to the probe interface 2.7 through the network cable 3.

[0042] In the foregoing technical solution, a cylindrical mounting base 6 for the transmitting antenna and a cylindrical mounting base 7 for the receiving antenna are fixed in the probe 2, two transmitting antennae 2.1 are coaxially fixed in the cylindrical mounting base 6 for the transmitting antenna and are conical copper pipe transmitting antennae, input ends of the two conical copper pipe transmitting antennae are connected to the signal output end of the radar wave signal transmission module 2.3, and conical ends of the two conical copper pipe transmitting antennae are oppositely disposed.

[0043] Two receiving antennae 2.2 are coaxially fixed in the cylindrical mounting base 7 for the receiving antenna and are conical copper pipe receiving antennae, output ends of the two conical copper pipe receiving antennae are connected to the signal input end of the radar wave signal receiving module 2.4, and conical ends of the two conical copper pipe receiving antennae are oppositely disposed; the transmitting antennae 2.1 and the receiving antennae 2.2 are symmetric half-wavelength antennae, so that two antenna of each type must be provided. Besides, due to small copper pipe resistance and good signal quality, the transmitting antennae 2.1 are set as conical copper pipe transmitting antennae, 9 and the receiving antennae 2.2 are set as conical copper pipe receiving antennae according to the symmetric half-wavelength requirements. The conical ends of the conical copper pipe antennae are oppositely disposed according to the symmetric half-wavelength and impedance matching requirements.

[0044] In the foregoing technical solution, the cylindrical mounting base 6 for the transmitting antenna and the cylindrical mounting base 7 for the receiving antenna are polyvinyl chloride plastic mounting bases having a diameter being 45 mm. The PVC plastic selected in the foregoing solution plays a role in isolating the antennae in an insulation manner.

[0045] In the foregoing technical solution, the two conical copper pipe transmitting antennae are identical in size and shape, a diameter of a copper pipe of each conical copper pipe transmitting antenna ranges from 39 mm to 42 mm, and an overall length of each conical copper pipe transmitting antenna ranges from 498 mm to 510 mm. The two conical copper pipe receiving antenna and the conical copper pipe transmitting antenna are identical in size and shape.

[0046] In the foregoing technical solution, the PVC plastic pipe 10 is fixed in the probe 2, and the cylindrical mounting base 6 for the transmitting antenna and the cylindrical mounting base 7 for the receiving antenna are coaxially sealed in the PVC plastic pipe 10. The PVC plastic pipe 10 is of a cylindrical shape, and a diameter of the PVC plastic pipe 10 is within 50 mm.

[0047] In the foregoing technical solution, a distance between the two transmitting antennae 2.1 in the cylindrical mounting base 6 for the transmitting antenna ranges from 3 mm to 5 mm. A distance between the two receiving antennae 2.2 in the cylindrical mounting base 7 for the receiving antenna ranges from 3 mm to 5 mm. The distance between the foregoing two antennae 1s selected according to antenna impedance matching requirements, thereby realizing the best signal effect.

[0048] Based on the specific design in the probe 2, the transmitting antenna 2.1 and the receiving antennae 2.2 can transmit and receive radar wave signals omnidirectionally.

[0049] A method for advanced water detection and forecasting using a mining borehole radar advanced water detection and forecasting device, the method comprising the following steps.

[0050] Step 1: placing the probe 2 to an orifice of a borehole to be measured 5.

[0051] Step 2: controlling, by the field host 1, the radar wave signal transmission 10 module 2.3 to allow the transmitting antennae 2.1 to transmit pulse broadband radar waves via a single chip microcomputer 2.5.

[0052] Step 3: receiving, by the receiving antennae 2.2, direct radar wave signals transmitted by the transmitting antennae 2.1 and radar wave signals reflected by a rock mass around the borehole to be measured 5, carrying out signal pre-processing and digitalizing, by the radar wave signal receiving module 2.4 and the single chip microcomputer 2.5, for the direct radar wave signals and the reflected radar wave signals received by the receiving antennae 2.2, and then transmitting, by the single chip microcomputer 2.5, the direct radar wave and reflected radar wave digital signals to the field host 1; and meanwhile, measuring, by a three-dimensional electronic compass 2.9, coordinate data at the orifice of the borehole to be measured 5, transmitting the coordinate data at the orifice of the borehole to be measured 5 to the single chip microcomputer 2.5, and transmitting, by the single chip microcomputer 2.5, the coordinate data at the orifice of the borehole to be measured 5 to the field host 1.

[0053] Step 4: using the push bar 4 to gradually propel the probe 2 from the orifice to a bottom of the borehole to be measured 5, scanning and detecting the borehole to be measured 5 point by point by virtue of the advanced detection method for the borehole to be measured in the steps 2-3, namely, scanning and detecting every preset detection point to obtain the direct radar wave signal and the reflected radar wave signal of every preset detection point from the orifice to the bottom of the borehole to be measured 5 as well as the coordinate data of every preset detection point, thus obtaining radar wave data of all preset detection points from the orifice to the bottom of the borehole to be measured 5 as well as trajectory data of the borehole to be measured 5.

[0054] Step 5: building, by the field host 1, a digital oscillogram according to radar wave time and radar wave amplitude in radar wave data of all preset detection points from the orifice to the bottom of the borehole to be measured 5, in order to form a two-dimensional digital radar wave nomogram of an overall depth of the borehole to be measured, and drawing, by the field host 1, a trajectory chart of the borehole to be measured 5 according to the received trajectory data of the borehole to be measured 5; For the above-mentioned two-dimensional digital radar wave nomogram, the depth of the borehole to be measured 5 and the time of receiving the radar waves by the receiving antennae 2.2 are served as coordinate axes.

[0055] Step 6: finding out, by the field host 1, all signals reflected by the radar waves 11 according to the two-dimensional digital radar wave nomogram of the overall depth of the borehole to be measured 5 as well as the trajectory chart of the borehole to be measured 5 obtained in step 5, judging whether all radar wave reflection signals include radar reflection wave signals generated from a water-bearing body using the Formula (2) according to the amplitude of the radar wave reflection signals, and calculating positions, relative to the borehole to the measured 5, of the reflected radar waves generated by the water-bearing body using the above-mentioned Formula (3) according to time t and amplitude characteristics of the reflected radar waves, thus determining whether the rock mass around the borehole 5 to be measured has the water-bearing body, and obtaining the position of the water-bearing body and a distance between the water-bearing body the borehole to be measured 5, and making a forecast on the basis to realize the advanced water detection and forecasting of the borehole to be measured.

[0056] In the foregoing technical solution, if the rock mass around the borehole to be measured 5 has the water-bearing body, the field host 1 can determine the specific position of the water-bearing body and the distance to the borehole to be measured 5 according to the two-dimensional digital radar wave nomogram of the overall length of the borehole to be measured 5 and the trajectory chart of the borehole to be measured 5 obtained in step 5, as well as the time and amplitude of the direct radar waves and reflected radar waves and the positions of the reflected radar waves in the borehole to be measured 5, and make a forecast on this basis, thus realizing the advanced water detection and forecasting of the hole to be measured 5.

[0057] In the foregoing technical solution, a distance between every two adjacent preset detection points is equal and ranges from 10 cm to 20 cm. The above-mentioned detection points can be arranged to improve the precision of advanced water detection and forecasting.

[0058] In the foregoing technical solution, a frequency of each pulse broadband radar wave ranges from 20 MHz to 200 MHz. The frequency can ensure detection of a 30 m range around the borehole and determine the water-bearing body within the range.

[0059] The contents which are not described in detail in the Description belong to the prior art well-known by those of skill in the art. 12

Claims (9)

1. A method for advanced water detection and forecasting using a mining borehole radar advanced water detection and forecasting device, wherein, the mining borehole radar advanced water detecting forecasting device comprises a field host (1), a probe (2), a network cable (3), a push bar (4), transmitting antennae (2.1) arranged in the probe (2), receiving antennae (2.2), a radar wave signal transmission module (2.3), a radar wave signal receiving module (2.4), a single chip microcomputer (2.5), a battery (2.6), a probe interface (2.7), a first memory (2.8) and a three-dimensional electronic compass (2.9), wherein a signal output end of the radar wave signal transmission module (2.3) is connected to a signal input end of each transmitting antenna (2.1), and a signal input end of the radar wave signal receiving module (2.4) is connected to a signal output end of each receiving antenna (2.2); communication ends of the radar wave signal transmission module (2.3) and the radar wave signal receiving module (2.4) are respectively connected to a signal transmission communication end and a signal receiving communication end of the single chip microcomputer (2.5), communication ends of the first memory (2.8) and the three-dimensional electronic compass (2.9) are respectively connected to a data storage communication end and a compass data communication end of the single chip microcomputer (2.5), and a data communication end of the single chip microcomputer (2.5) is connected to a data communication end of the field host (1) through the probe interface (2.7) and the network cable (3); the battery (2.6) is used for respectively powering the radar wave signal transmission module (2.3), the radar wave signal receiving module (2.4), the three-dimensional electronic compass (2.9) and the single chip microcomputer (2.5); the radar wave signal transmission module (2.3) and the transmitting antennae (2.1) can be controlled to transmit pulse broadband radar waves around a borehole to be measured (5) by the single chip microcomputer (2.5), the radar wave signal receiving module (2.4) and the receiving antennae (2.2) are used for receiving direct radar wave signals transmitted by the transmitting antennae (2.1) and radar wave signals reflected by rock mass around the borehole to be measured (5); the single chip microcomputer (2.5) is used for digitizing the received direct radar wave signals and reflected radar wave signals to obtain direct radar wave and reflected radar wave digital signals, and conveying the direct radar wave and reflected radar wave digital signals and borehole trajectory data measured by the three-dimensional electronic compass (2.9) to the field host (1) or storing into the first memory (2.8), and the field host (1) is used for generating a radar wave nomogram and a borehole trajectory chart correspondingly according to the foregoing direct radar wave and reflected radar wave digital signals and the foregoing borehole trajectory data; wherein, the method comprises: step 1: placing the probe (2) to an orifice of the borehole to be measured (5); 13 step 2: controlling, by the field host (1), the radar wave signal transmission module (2.3) to allow the transmitting antennae (2.1) to transmit the pulse broadband radar waves via a single chip microcomputer (2.5); step 3: receiving, by the receiving antennae (2.2), direct radar wave signals transmitted by the transmitting antennae (2.1) and radar wave signals reflected by the rock mass around the borehole to be measured (5), carrying out signal pre-processing and digitalizing, by the radar wave signal receiving module (2.4) and the single chip microcomputer (2.5), for the direct radar wave signals and the reflected radar wave signals received by the receiving antennae (2.2), and then transmitting, by the single chip microcomputer (2.5), the direct radar wave and reflected radar wave digital signals to the field host (1); and meanwhile, measuring, by a three-dimensional electronic compass (2.9), coordinate data at the orifice of the borehole to be measured (5), transmitting the coordinate data at the orifice of the borehole to be measured (5) to the single chip microcomputer (2.5), and transmitting, by the single chip microcomputer (2.5), the coordinate data at the orifice of the borehole to be measured (5) to the field host (1); step 4: using the push bar (4) to gradually propel the probe (2) from the orifice to a bottom of the borehole to be measured (5), scanning and detecting the borehole to be measured (5) point by point by virtue of the advanced detection method for the borehole to be measured in the steps 2-3, namely, scanning and detecting every preset detection point to obtain the direct radar wave signal and the reflected radar wave signal of every preset detection point from the orifice to the bottom of the borehole to be measured (5) as well as the coordinate data of every preset detection point, thus obtaining radar wave data of all preset detection points from the orifice to the bottom of the borehole to be measured (5) as well as trajectory data of the borehole to be measured (5); step 5: building, by the field host (1), a digital oscillogram according to radar wave time and a radar wave amplitude in the radar wave data of all preset detection points from the orifice to the bottom of the borehole to be measured (5), in order to form a two-dimensional digital radar wave nomogram of an overall depth of the borehole to be measured, and drawing, by the field host (1), a trajectory chart of the borehole to be measured (5) according to the received trajectory data of the borehole to be measured (5); and step 6: finding out, by the field host (1), all signals reflected by the radar waves according to the two-dimensional digital radar wave nomogram of the overall depth of the borehole to be measured (5) as well as the trajectory chart of the borehole to be measured (5) obtained in step 5, judging whether all radar wave reflection signals include radar reflection wave signals generated from a water-bearing body according to the amplitude of the radar wave reflection signals, and calculating positions, relative to the borehole to the measured (5), of the reflected radar waves generated from the water-bearing body according to time and amplitude characteristics of the reflected radar waves, thus 14 determining whether the rock mass around the borehole (5) to be measured has the water-bearing body, and obtaining a position of the water-bearing body and a distance between the water-bearing body and the borehole to be measured (5), and making a forecast on the basis to realize the advanced water detection and forecasting of the borehole to be measured.

2. The method for advanced water detection and forecasting according to claim 1, wherein the field host (1) comprises a central processing unit (1.1), a second memory (1.2), human-computer interaction equipment (1.3), a host interface (1.4) and a system bus (1.5), wherein communication ends of the second memory (1.2), the human-computer interaction equipment (1.3) and the central processing unit (1.1) are connected to the system bus (1.5) connected to the probe interface (2.7) through the host interface (1.4).

3. The method for advanced water detection and forecasting according to claim 1, wherein a cylindrical mounting base (6) for the transmitting antenna and a cylindrical mounting base (7) for the receiving antenna are fixedly arranged in the probe (2), two transmitting antennae (2.1) are coaxially fixed in the cylindrical mounting base (6) for the transmitting antenna and are conical copper pipe transmitting antennae, input ends of the two conical copper pipe transmitting antennae are connected to the signal output end of the radar wave signal transmission module (2.3), and conical ends of the two conical copper pipe transmitting antennae are oppositely disposed; and two receiving antennae (2.2) are coaxially fixed in the cylindrical mounting base (7) for the receiving antenna and are conical copper pipe receiving antennae, output ends of the two conical copper pipe receiving antennae are connected to the signal input end of the radar wave signal receiving module (2.4), and the conical ends of the two conical copper pipe receiving antennae are oppositely disposed.

4. The method for advanced water detection and forecasting according to claim 3, wherein a PVC plastic pipe (10) is fixed in the probe (2), and the cylindrical mounting base (6) for the transmitting antenna and the cylindrical mounting base (7) for the receiving antenna are coaxially sealed in the PVC plastic pipe (10).

5. The method for advanced water detection and forecasting according to claim 3, wherein a distance between the two transmitting antennae (2.1) in the cylindrical mounting base (6) for the transmitting antenna ranges from 3 mm to 5 mm.

6. The method for advanced water detection and forecasting according to claim 3, wherein a distance between the two receiving antennae (2.2) in the cylindrical mounting base (7) for the receiving antenna ranges from 3 mm to 5 mm.

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7. The method for advanced water detection and forecasting according to claim 1, wherein a distance between every two adjacent preset detection points is equal and ranges from 10 cm to 20 cm.

8. The method for advanced water detection and forecasting according to claim 1, wherein a frequency of each pulse broadband radar wave ranges from 20 MHz to 200 MHz.

9. A mining borehole radar advanced water detection and forecasting device, comprising: a field host (1), a probe (2), a network cable (3), a push bar (4), transmitting antennae (2.1) arranged in the probe (2), receiving antennae (2.2), a radar wave signal transmission module (2.3), a radar wave signal receiving module (2.4), a single chip microcomputer (2.5), a battery (2.6), a probe interface (2.7), a first memory (2.8) and a three-dimensional electronic compass (2.9), wherein a signal output end of the radar wave signal transmission module (2.3) is connected to a signal input end of each transmitting antenna (2.1), and a signal input end of the radar wave signal receiving module (2.4) is connected to a signal output end of each receiving antenna (2.2); communication ends of the radar wave signal transmission module (2.3) and the radar wave signal receiving module (2.4) are respectively connected to a signal transmission communication end and a signal receiving communication end of the single chip microcomputer (2.5), communication ends of the first memory (2.8) and the three-dimensional electronic compass (2.9) are respectively connected to a data storage communication end and a compass data communication end of the single chip microcomputer (2.5), and a data communication end of the single chip microcomputer (2.5) is connected to a data communication end of the field host (1) through the probe interface (2.7) and the network cable (3); the battery (2.6) is used for respectively powering the radar wave signal transmission module (2.3), the radar wave signal receiving module (2.4), the three-dimensional electronic compass (2.9) and the single chip microcomputer (2.5); the radar wave signal transmission module (2.3) and the transmitting antennae (2.1) can be controlled to transmit pulse broadband radar waves around a borehole to be measured (5) by the single chip microcomputer (2.5), the radar wave signal receiving module (2.4) and the receiving antennae (2.2) are used for receiving direct radar wave signals transmitted by the transmitting antennae (2.1) and radar wave signals reflected by rock mass around the borehole to be measured (5); the single chip microcomputer (2.5) is used for digitizing the received direct radar wave signals and reflected radar wave signals to obtain direct radar wave and reflected radar wave digital signals, and conveying the direct radar wave and reflected radar wave 16 digital signals and borehole trajectory data measured by the three-dimensional electronic compass (2.9) to the field host (1) or storing into the first memory (2.8), and the field host (1) is used for generating a radar wave nomogram and a borehole trajectory chart correspondingly according to the foregoing direct radar wave and reflected radar wave digital signals and the foregoing borehole trajectory data. 17