CN104020506A - Method for determining attitude elements of geologic body of magnetic area - Google Patents
Method for determining attitude elements of geologic body of magnetic area Download PDFInfo
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- CN104020506A CN104020506A CN201410248036.1A CN201410248036A CN104020506A CN 104020506 A CN104020506 A CN 104020506A CN 201410248036 A CN201410248036 A CN 201410248036A CN 104020506 A CN104020506 A CN 104020506A
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Abstract
The invention relates to a method for determining attitude elements of a geologic body of a magnetic area. The method comprises the step of determining the trend or the inclination or the angle of inclination of the geologic body of the magnetic area and specially comprises the following steps of (1) firstly, an attitude measuring point A of the geologic body is selected, and the coordinate (X1,Y1) of the point A is measured at the position of the point A by using a GPS mobile positioning system; (2) a marking point B is selected in a line in the extension direction of the trend or the inclination of the attitude elements, and the coordinate (X2,Y2) of the point B is measured; (3) on a simple geographic coordinate system, the point A and the point B are connected to form a straight line AB, and two straight lines parallel to the X coordinate line and the Y coordinate line are drawn according to the coordinate positions of the two points A and B, then, a right triangle OAB is formed, any angle of alpha and beta is solved by using the trigonometric function relational expression, and the direction, namely, the trend or the inclination of the attitude element of the point A, of the line AB can be solved according to the quadrant where the straight line AB is located. The method for determining the attitude elements of the geologic body of the magnetic area has the advantages that the defects of a gnomon-type simple compass are overcome, the influences of the local magnetic declination are avoided, the magnetic declination does not need to be corrected and the data precision and the operation efficiency are high.
Description
Technical field
The invention belongs to geologic survey technical field, relate in particular to the method for a kind of definite magnetic area geologic body attitude.
Background technology
The attitude of geologist's field survey geologic body structure, carries out anywhere or anytime.Be all generally to use geologic compass, this method is simple, is geologist's basic skills.But in magnetic area or measure when magnetic, while containing the geologic body attitude of magnet mineral such as measurement, owing to being subject to the interference in magnetic field, needle tends to be held or be offset, the occurrence data serious distortion measuring with geologic compass, can not utilize, conventionally use in the case " day simple and easy compass of Gui formula ".
" day Gui formula simple and easy compass ", utilizes the timing property principle design in shadows cast by the sun orientation, simple in structure, general self manufacture.Use " day simple and easy compass of Gui formula ", the data information of the variation of shadows cast by the sun orientation and time relationship in necessary acquisition workspace, also to be subject to the restriction of factors simultaneously, as: control, the every diurnal variation of shadows cast by the sun bearing data of being measured place longitude and latitude, every first quarter moon need to upgrade the data information of shadows cast by the sun orientation and time relationship of resurveying, very loaded down with trivial details trouble, error is larger; The impact of position, slope aspect, Measuring Time, day light intensity and weather of measurement point will be subject to simultaneously, the time that meets service condition is shorter, and field operation is more difficult, the horizontal accuracy of putting when " day simple and easy compass of Gui formula " measured directly affects again the precision of measurement data.Therefore the occurrence data precision that uses this method to record is low, work efficiency is low.
Summary of the invention
The object of this invention is to provide the method for a kind of definite magnetic area geologic body attitude, for measuring planar, the linear structure attitude of geologic body.Utilize this method can avoid the interference of magnetic, overcome and used day all defects of the simple and easy compass of Gui formula, improve precision and the work efficiency of measuring occurrence data.
The object of the invention is to realize by following method:
The present invention is a kind of method that GPS of utilization determines magnetic area geologic body attitude, determines trend, tendency, the inclination angle of magnetic area geologic body, and concrete steps are as follows:
1) first selected geologic body occurrence measuring point A, utilizes GPS movable positioning system to measure A point coordinate X1, Y1 at A point place;
2) a selected monumented point B on the bearing of trend line of attitude trend or tendency, measures B point coordinate X2, Y2;
3) according to the coordinate of 2 of A, B, draw a simple and easy geographic coordinate system, on this coordinate system, determine A, B 2 points, connect A, 2 of B and make straight line AB, two straight lines that are parallel to respectively X, y-line by A, 2 of B are again given O point, form a right-angle triangle OAB, utilize trigonometric function relational expression to solve in α, β any one jiao, with reference to the quadrant at straight line AB direction place, can obtain the position angle of AB line, attitude trend or tendency that namely A is ordered.If what measure is trend, according to the direction of coordinate, determine concrete tendency, trend is to add deduct 90 ° with the pass of tendency;
4) inclination angle can still measure with geologic compass.
Advantage of the present invention is: effectively overcome the simple and easy compass use of day Gui formula loaded down with trivial details, it is more difficult to operate, and confined condition is many, and the defects such as precision and inefficiency are not subject to again the impact in magnetic field, and needn't adjust magnetic declination simultaneously.This method has easy to operate, and data precision and operating efficiency are compared with high.
Brief description of the drawings
Fig. 1 is simple and easy geographic coordinate system calculating chart of the present invention.
Embodiment
Further illustrate the specific embodiment of the present invention below in conjunction with accompanying drawing.
As shown in 1 figure, there is shown the geographic coordinate figure of certain ore body.
Embodiment
The present invention is a kind of method that GPS of utilization determines the attitude of magnetic area geologic body, and concrete steps are as follows:
1) first geologic survey personnel will select ore body measuring point A, and the occurrence of this measuring point should be representative.Use handhold GPS movable positioning system (plane precision error
≤ 0.5m), measure A point coordinate X1, Y1;
2), on the bearing of trend line of attitude trend or tendency, the selected monumented point B of general approximately 10～50m, measures B point coordinate X2, Y2;
3) in simple and easy geographic coordinate system, determine A, B 2 points, connect A, 2 of B and make straight line AB, be parallel to respectively two straight lines of X, y-line and give O point by A, B two point coordinate positions again, form a right-angle triangle OAB, utilize trigonometric function relational expression to solve in α, β any one jiao, with reference to the quadrant at straight line AB direction place, can obtain the orientation of AB line, attitude trend or tendency that namely A is ordered.
4) inclination angle can still measure with geologic compass.
The coordinate projection of 2 of A, B to drawing, connect A, 2 of B and make straight line AB, be parallel to respectively two straight lines of X, y-line and give O point by A, B two point coordinate positions again, form a right-angle triangle OAB, can measure α, β angle by use amount hornwork, final attitude trend or the tendency that also can draw institute's geodetic plastid, inclination angle can still measure with geologic compass.
The embodiment of this patent is as follows:
1, computing method
Measuring point A(7150,9300), some B(7110,9330).
tgβ=（X2-X1）/(Y2-Y1)=－40/30＝－1.3333
β＝－53.13° （α+β=90°）
Trend is 270-(-53.13)=323.13 ° or 143.13 °, tendency is 233.13 ° or 53.13 °.
Measuring inclination angle with geologic compass is 35 °
35 ° of 35 ° or 53.13 ° ∠ of 233.13 ° of ∠ of A point geologic body occurrence
2, protractor method
Concrete steps are as follows:
1) first selected geologic body occurrence measuring point A, utilizes GPS movable positioning system to measure A point coordinate X1, Y1 at A point place;
2) the selected monumented point B of general approximately 10～50m on the bearing of trend line of attitude trend or tendency, measures B point coordinate X2, Y2;
3) in simple and easy geographic coordinate system, determine A, B 2 points, by A, B two-point drawing one straight line AB, use amount hornwork is measured in α, β any one jiao, can determine the attitude trend that A order or be inclined to;
4) inclination angle can still measure with geologic compass.
The method of the attitude of geologic survey magnetic of the present invention is carried out in the malfunctioning situation of use geologic compass, and it has overcome again, and the simple and easy compass use of day Gui formula is loaded down with trivial details, and it is more difficult to operate, and confined condition is many, the defects such as precision and inefficiency.This method has easy to operate, and data precision and operating efficiency are compared with high.
Claims (2)
1. a method for the attitude of definite magnetic area geologic body, comprises trend or tendency and the inclination angle of determining magnetic area geologic body, and concrete steps are as follows:
1) first selected geologic body occurrence measuring point A, utilizes GPS movable positioning system to measure A point coordinate X1, Y1 at A point place;
2) a selected monumented point B on the bearing of trend line of attitude trend or tendency, measures B point coordinate X2, Y2;
3) in simple and easy geographic coordinate system, determine A, B 2 points, connect A, 2 of B and make straight line AB, be parallel to respectively again two straight lines of X, y-line by A, B two point coordinate positions, form a right-angle triangle OAB, utilize trigonometric function relational expression to solve in α, β any one jiao, with reference to the quadrant at straight line AB direction place, can obtain the orientation of AB line, attitude trend or tendency that namely A is ordered;
4) inclination angle can still measure with geologic compass.
2. utilize GPS to determine a method for the attitude of magnetic area geologic body, comprise trend, tendency, the inclination angle of determining magnetic area geologic body, concrete steps are as follows:
1) first selected geologic body occurrence measuring point A, utilizes GPS movable positioning system to measure A point coordinate X1, Y1 at A point place;
2) a selected monumented point B on the bearing of trend line of attitude trend or tendency, measures B point coordinate X2, Y2;
3) in simple and easy geographic coordinate system, determine A, B 2 points, connect A, 2 of B and make straight line AB, by A, B two-point drawing one straight line AB, be parallel to respectively again two straight lines of X, y-line by A, B two point coordinate positions, form a right-angle triangle OAB, use amount hornwork is measured in α, β any one jiao, can determine attitude trend or tendency that A is ordered;
4) inclination angle can still measure with geologic compass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410248036.1A CN104020506A (en) | 2014-06-06 | 2014-06-06 | Method for determining attitude elements of geologic body of magnetic area |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410248036.1A CN104020506A (en) | 2014-06-06 | 2014-06-06 | Method for determining attitude elements of geologic body of magnetic area |
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| CN104020506A true CN104020506A (en) | 2014-09-03 |
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| CN201410248036.1A Pending CN104020506A (en) | 2014-06-06 | 2014-06-06 | Method for determining attitude elements of geologic body of magnetic area |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697854A (en) * | 2013-12-10 | 2014-04-02 | 广西华锡集团股份有限公司 | Method for measuring occurrence of non-contact structural surface |
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2014
- 2014-06-06 CN CN201410248036.1A patent/CN104020506A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697854A (en) * | 2013-12-10 | 2014-04-02 | 广西华锡集团股份有限公司 | Method for measuring occurrence of non-contact structural surface |
Non-Patent Citations (2)
| Title |
|---|
| 王彪等: "应用GPS技术精确测量近水平地层产状", 《西部探矿工程》, no. 2, 29 February 2012 (2012-02-29) * |
| 王根厚等: "《综合地质学实习指导书》", 31 January 2010, article "用间接方法确定岩层产状要素" * |
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Application publication date: 20140903 |
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