CN102955170B - Drilling hole acoustic radar detection method and drilling hole acoustic radial scanning probe - Google Patents
Drilling hole acoustic radar detection method and drilling hole acoustic radial scanning probe Download PDFInfo
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- CN102955170B CN102955170B CN201210383774.8A CN201210383774A CN102955170B CN 102955170 B CN102955170 B CN 102955170B CN 201210383774 A CN201210383774 A CN 201210383774A CN 102955170 B CN102955170 B CN 102955170B
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Abstract
The invention discloses a drilling hole acoustic radar detection method and a drilling hole acoustic radial scanning probe. The method and device have two working modes, namely a drilling hole acoustic common-depth scanning work program and a drilling hole acoustic common-angle radar scanning work program. The drilling hole acoustic radial scanning probe comprises a position controller (1), an exploring tube (2), a sensor adherence elastic arm (3), an acoustic sensor, a rubber assistance pad (4) and an elastic arm locking and trigger switch (5). According to the method and the probe, the technical problem of radial detection by utilizing hole drilling can be solved, the functions of an exploratory hole are sufficiently utilized, so that the detection capacities for deep bury and small geological flaw can be improved, identification to karst caves and other geological flaw abnormality can be distinguished directly and the working efficiency is high. The drilling hole acoustic radar detection method and the drilling hole acoustic radial scanning probe can be widely applied to geological survey, basic potential hazard troubleshooting in municipal, housing, traffic, water conservancy and hydropower and other construction fields.
Description
Technical field
The present invention relates to a kind of borehole sonic radar detection method and borehole sonic radial scan probe, belong to engineering geology field of detecting.
Background technology
Geologic prospecting is reconnoitred geology by various means, method, detected, and determines suitable supporting course, according to the foundation bearing capacity of supporting course, determine type of foundation, calculates the enquiry-based activity of underlying parameter.Wherein physical prospecting is called for short physical prospecting, with the density of various rock and ore, magnetic, electrically, the difference of the physical property such as elasticity, radioactivity is for Research foundation, with different physical methods and geophysical prospecting equipment, detect the change of natural or artificial geophysical field, by the Use of Geophysical Data analyzed, research obtains, infer, explain tectonic structure and distribution of mineral deposits situation.Wherein probing is a kind of physical prospecting means be in daily use, and refers to and to hole in the earth formation with rig, to differentiate and to divide surface lower stratum, and can along a kind of method of exploration of hole depth sampling.Boring how is utilized to carry out intensive detection operations better, that geological exploration techniques research worker pursues always, the current Detection Techniques of carrying out of holing that utilize mainly contain comprehensive logging (comprising the logging methods such as electrical measurement, sounding, radioactivity, electromagnetism, optics), hole discontinuity surface scanning (CT) etc., and these method and technologies mainly carry out the geology detecting of hole wall or holes discontinuity surface.But these methods have respective limitation, and investigative range is little, result of detection is also accurate not, and work efficiency is not high, cannot intuitively detect the Geological Defects such as the solution cavity of existence, therefore, in prior art, also lack a kind of better borehole sonic radar detection method.
Summary of the invention
The object of the invention is for overcoming the deficiencies in the prior art, there is provided a kind of borehole sonic radar detection method and borehole sonic radial scan probe, make investigative range wider, result of detection is more accurate, and work efficiency is higher, the Geological Defects such as the solution cavity of existence can be detected intuitively.
For realizing object of the present invention, a kind of borehole sonic radar detection method of the present invention, wherein, utilize sound wave carry out hole diameter carry out engineer geological prospecting to radar scanning time, a kind of borehole sonic radial scan is used to pop one's head in, adopt degree of depth radar scanning working routine altogether when utilizing this probe to detect, this working routine comprises the following steps:
1) by annular array probe placement design drilling depth, fixing by gross bearings is carried out to probe;
2) adherent operation is carried out to probe;
3) operate ground sonic apparatus carries out radial ultra sonic scanner to probe surrounding country rock, forms the sound radar scintigram of holing as the center of circle;
4) according to radar return image, orientation, the position determining Geological Defects reflection interval, Distance geometry scope;
5) mobile probe operates more than next scan depths point repeats.
As another implementation of this method, also can adopt corner-sharing degree radar scanning working routine when utilizing this probe to detect, this working routine comprises the following steps:
1) by the boring a certain reference position of probe placement in design, orientation is carried out to probe and fixes, determine common angle orientation, determine acoustic emission and the receiving transducer of common angle direction;
2) operate ground instrument completes the acoustic emission reception work of this point;
3) above work is repeated apart from mobile probe to more lower by design point;
4) complete the scanning work of whole piece section, form the corner-sharing degree sound wave scan image in a certain orientation;
5) degree of depth, the Distance geometry scope of Geological Defects is determined according to the common angle orientation on scan echo image, the degree of depth, time.
For realizing said method, the present invention also provides a kind of borehole sonic radial scan to pop one's head in, this probe by wire with sonic apparatus and control to monitor that main frame is connected, wherein, this probe is provided with a position controller, be provided with an inserting tube at the tail end of position controller, inserting tube being provided with by eight shell fragments is the adherent spring of sensor that petal-shaped forms, and is provided with a sonic sensor and rubber auxiliary mat in the termination of every bar shell fragment of the adherent spring of sensor; Inserting tube is also provided with the elastic arm that eight shell fragments of the adherent spring of sensor can be made outward to draw on inserting tube or as the circular array shape that trails lock and trigger switch.
Further, above-mentioned borehole sonic radial scan probe, wherein, described elastic arm locking and trigger switch are positioned at the tail end of inserting tube.
Further, above-mentioned borehole sonic radial scan probe, wherein, described wire transfers this probe by the pulley being located at aperture.
Acoustic emission of the present invention and receiving instrument adopt general ground to detect sonic apparatus.The present invention is the Principles of Radar utilizing sound wave, by taking boring as the center of circle, to the radar scanning of hole Zhou Jinhang certain limit, reaches the object precisely detecting the Geological Defects such as solution cavity.This invention makes full use of the feature that underground environment noise is little, hole, sound radar scanning technique is adopted to realize three-dimensional column, solution cavity within the scope of energy scanning holes week 10 meters, investigative range is large, work on the spot efficiency is high, detection solution cavity is directly perceived, surveys in detail and make full use of boring to provide one new method effectively and rapidly for engineering geology.The invention solves the technical barrier utilizing boring to carry out radial detection, make use of the function of exploratory hole fully, improve the detectivity to buried Tibetan, little Geological Defects, the Geological Defects anomalous identification such as solution cavity are directly perceived, work efficiency is high, municipal administration can be widely used in, firmly build, traffic, the geological mapping of the construction field such as water conservancy and hydropower, basic hidden troubles removing work.
Accompanying drawing explanation
Fig. 1 is borehole sonic radar detection method schematic diagram;
Fig. 2 is borehole sonic radar depth scan probe plane structural drawing altogether;
Fig. 3 is borehole sonic radial scan sonde configuration schematic diagram;
Fig. 4 is that borehole sonic radial scan is popped one's head in the schematic diagram trailed in hole;
Fig. 5 is borehole sonic radar degree of depth radial scan Data Management Analysis figure altogether.
Description of reference numerals: 1-position controller, 2-inserting tube, the adherent elastic arm of 3-sensor, 4-sonic sensor and rubber auxiliary mat, the locking of 5-elastic arm and trigger switch, 6-wire, 7-sonic apparatus and supervision main frame, 8-pulley.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Borehole sonic radar detection method schematic diagram of the present invention as shown in Figure 1, technical scheme of the present invention realizes mainly through a kind of borehole sonic radial scan probe, this probe by wire 6 with sonic apparatus and control to monitor that main frame 7 is connected, this probe is provided with a position controller 1, an inserting tube 2 is provided with at the tail end of position controller 1, inserting tube 2 being provided with by eight shell fragments is the adherent spring 3 of sensor that petal-shaped forms, as shown in Figure 3, Figure 4, a sonic sensor and rubber auxiliary mat 4 is provided with in the termination of every bar shell fragment of the adherent spring of sensor 3; Inserting tube 2 is also provided with the elastic arm that eight shell fragments of the adherent spring 3 of sensor can be made outward to draw on inserting tube 2 or as the circular array shape that trails lock and trigger switch 5, when elastic arm locking and trigger switch 5 are in closed condition, eight shell fragments of the adherent spring 3 of sensor draw on inserting tube 2, be beneficial to like this and probe is put into boring smoothly.When elastic arm locking and trigger switch 5 be subject to triggering open time, the constraint that eight shell fragments of the adherent spring 3 of sensor are subject to disappears, article eight, shell fragment can flick and circular array shape immediately towards periphery, the termination of every bar shell fragment can prop up hole wall, and the sonic sensor on shell fragment termination and rubber auxiliary mat 4 are close on hole wall.The degree that shell fragment flicks is relevant to hole wall internal diameter, but must ensure that the termination of shell fragment can prop up hole wall.
In addition, the locking of described elastic arm and trigger switch 5 are positioned at the tail end of inserting tube 2, and like this when probe below is to Suitable depth, elastic arm locking and trigger switch 5 are opened touching can to trigger after at the bottom of hole.According to the difference of various drilling situation, also elastic arm locking and trigger switch 5 can be arranged on other position on probe, but after probe must be made to arrive objective, elastic arm locking and trigger switch 5 can be convenient to open and close.
For easy to operate, described wire 6 transfers this probe by the pulley 8 being located at aperture.
Can adopt common degree of depth radar scanning working routine or corner-sharing degree radar scanning working routine when utilizing this probe to detect, wherein degree of depth radar scanning working routine comprises the following steps altogether:
1) by annular array probe placement design drilling depth, fixing by gross bearings is carried out to probe;
2) adherent operation is carried out to probe;
3) operate ground sonic apparatus carries out radial ultra sonic scanner to probe surrounding country rock, forms the sound radar scintigram of holing as the center of circle;
4) according to radar return image, orientation, the position determining Geological Defects reflection interval, Distance geometry scope;
5) mobile probe operates more than next scan depths point repeats.
Corner-sharing degree radar scanning working routine comprises the following steps:
1) by the boring a certain reference position of probe placement in design, orientation is carried out to probe and fixes, determine common angle orientation, determine acoustic emission and the receiving transducer of common angle direction;
2) operate ground instrument completes the acoustic emission reception work of this point;
3) above work is repeated apart from mobile probe to more lower by design point;
4) complete the scanning work of whole piece section, form the corner-sharing degree sound wave scan image in a certain orientation;
5) degree of depth, the Distance geometry scope of Geological Defects is determined according to the common angle orientation on scan echo image, the degree of depth, time.
Brief description borehole sonic is total to the enforcement of degree of depth radar scanning working routine below, borehole sonic radar is total to depth scan probe plane structural drawing as shown in Figure 2, in figure, Geological Defects position is positioned at probe right, orientation and the approximate distance of geology rejected region can be determined very soon by common degree of depth radar scanning working routine, thus comparatively fast judge position and the indicated range of Geological Defects, be convenient to formulate counter-measure.The borehole sonic radar drawn by above-mentioned degree of depth radar scanning working routine is altogether total to degree of depth radial scan Data Management Analysis figure as shown in Figure 5, as can be seen from the figure, the waveform being positioned at instrument right in figure has obvious disorderly sign, illustrate that this place exists Geological Defects, then scope and the position of Geological Defects can be judged from the scope of waveform disorder and size.
Degree of depth radar scanning working routine is similar altogether for the principle of borehole sonic corner-sharing degree radar scanning working routine, plane structure chart and Data Management Analysis figure and borehole sonic, is not repeated at this.
For implementing technical scheme of the present invention, also need borehole radar to scan and Data Management Analysis software, such software major function comprises: scan control function, probe positioning function, gain control, radar image arrangement, radar image master data processing capacity, anomalous identification and distance measurement of bearing function etc.Such software commercially can be easy to obtain at present, belongs to Conventional sound detection assistant software.
The instrument that the present invention uses can adopt general ground sonic test instrument, but must load sonic probe converter.
Certainly, more than just embody rule example of the present invention, the technical scheme that the present invention also has other embodiment, all employings to be equal to replacement or equivalent transformation to be formed, all drops within protection domain of the presently claimed invention.
Claims (3)
1. a borehole sonic radial scan probe, this probe by wire (6) with sonic apparatus and control to monitor that main frame (7) is connected, it is characterized in that: this probe is provided with a position controller (1), an inserting tube (2) is provided with at the tail end of position controller (1), inserting tube (2) being provided with by eight shell fragments is the adherent spring of sensor (3) that petal-shaped forms, and is provided with a sonic sensor and rubber auxiliary mat (4) in the termination of every bar shell fragment of the adherent spring of sensor (3); Inserting tube (2) is also provided with upper at inserting tube (2) or as the circular array shape that trails the elastic arm of eight shell fragments gatherings of the adherent spring of sensor (3) can be made outward to lock and trigger switch (5).
2. borehole sonic radial scan probe according to claim 1, is characterized in that: described elastic arm locking and trigger switch (5) are positioned at the tail end of inserting tube (2).
3. borehole sonic radial scan probe according to claim 1, is characterized in that: described wire (6) transfers this probe by the pulley (8) being located at aperture.
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| CN109031430B (en) * | 2018-07-11 | 2020-04-14 | 中国地质科学院岩溶地质研究所 | Detection method for directional reflection imaging of single-borehole geological radar |
| CN109375264B (en) * | 2018-12-10 | 2020-02-11 | 山东大学 | Drilling coupling device suitable for advanced geological prediction geophone and use method |
| CN113357497B (en) * | 2021-06-17 | 2022-09-06 | 安徽省庐江龙桥矿业有限公司 | Drilling radar detector centering device that goes into hole |
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