CN111488328B - Automatic drawing method for uranium ore geological drilling core geophysical prospecting and recording curve - Google Patents
Automatic drawing method for uranium ore geological drilling core geophysical prospecting and recording curve Download PDFInfo
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Abstract
The invention discloses an automatic drawing method of a uranium ore geological drilling core geophysical prospecting and recording curve, which comprises the following steps: preparing a drill core geophysical prospecting catalog database; calculating the depth of the measuring point; setting a projection scale and a projection starting point position; and drawing a projection curve. The method for drilling the rock core geophysical prospecting record curve has the following advantages: 1. the operation is simple and convenient; 2. realizing automatic drawing; 3. the drawing is digitized, so that the drawing is convenient to store; 4. and the working efficiency is improved. The method is suitable for drawing the catalogue curves of various drill cores, can realize input data and automatically draw the catalogue curves, and greatly improves the working efficiency.
Description
Technical Field
The invention belongs to a method for drawing a borehole core geophysical prospecting and recording curve in uranium ore geological exploration, and particularly relates to an automatic drawing method for a borehole core geophysical prospecting and recording curve of uranium ore geological exploration.
Background
In the prior art, in the uranium ore geological exploration process, a drilling core geophysical prospecting and recording curve is drawn by adopting manual projection, and the method has more defects: 1. the projection position is inaccurate, and the error is large; 2. a great deal of time and labor are consumed, and the efficiency is low; 3. the paper drawing files no electronic data, and is inconvenient to compare and call. Therefore, the method for automatically drawing the geophysical prospecting and recording curve of the drill core is developed, replaces the traditional manual drawing, and is beneficial to saving manpower and improving efficiency.
Disclosure of Invention
The invention aims to provide an automatic drawing method for a geophysical borehole core geophysical prospecting and recording curve of uranium mine geology, which can realize automatic drawing of the borehole core geophysical prospecting and recording curve, greatly lighten labor intensity, improve efficiency of drawing the borehole core geophysical prospecting and recording curve, enable borehole core geophysical prospecting and recording data to be capable of realizing free calling and comparison of the geophysical prospecting and recording curve according to the data even if the borehole core geophysical prospecting and recording curve is drawn.
The technical scheme of the invention is as follows: an automatic drawing method of a uranium ore geological drilling core geophysical prospecting and recording curve comprises the following steps,
step 1: preparing a drill core geophysical prospecting record database, wherein the database comprises a secondary n and a secondary hole depth h n Position a of secondary measuring point nm Length of core n And measurement value C nm ；
Step 2: according to the depth b of the bottom of the core n Deep stop h of secondary hole n Arranging the rock cores in an equal mode, and calculating the depth H of the measuring point nm ；
Step 3: setting drill geophysical prospecting record data (H) nm ，C nm ) Mapping scale corresponding to position (Y, X) on plane, and calibrating projection start point position (Y on plane view 0 ，X 0 )；
Step 4: on a computer, the corresponding drill geophysical prospecting data are drawn to the corresponding position on the screen from the initial depth to the termination depth section by section, namely the completion coordinate (H nm ，C nm ) Mapping to plane coordinates (Y, X), depth range and measured value left and right scales are determined when drawing on plane, respectively are [ H ] 0 ，H max ]And [ C ] min ，C max ]。
The database in the step 1 supports storage and space indexing and can be freely called.
The step 1 comprises the steps of,
(1) Based on the Access database structure, designing a database table for logging drill core, wherein the database comprises a recurrent number n and a recurrent number hole depth h n Position a of secondary measuring point nm Length of core n And measurement value C nm ；
(2) And adding drill core geophysical prospecting catalog data to the drill core catalog database table.
The step 2 comprises the following specific steps,
(1) According to the depth b of the bottom of the core n Deep stop h of secondary hole n Arranging the cores in an equal manner;
(2) The measuring point depth calculation formula is as follows:
H ni ＝h n -l n +a ni (0≤a ni ≤l n )
wherein H is nm : drilling depth of the ith measuring point of the nth layer; h is a n : deeply stopping the nth secondary hole; l (L) n : length of core for nth time; a, a ni : the position of the ith measuring point of the nth time; c (C) ni : an nth layer is an ith station measurement.
In the step 2, the number m of one secondary measuring point is related to the distance c between the measuring points and the length of the core, and the relationship is as follows:
m＝[l n /c]+1
and c, measuring point spacing distance, wherein when the rock core is measured, c is more than or equal to 0.5m and less than or equal to 1m, and when the rock core is measured, c is more than or equal to 0.1m and less than or equal to 0.2m, and the bracket is an integer part with decimal.
In the step 3, the drill core geophysical prospecting curve projects a longitudinal scale k, a horizontal scale distance d (the horizontal distance of the projection points of the maximum value and the minimum value of the measured value), and the initial position (Y) of the projection points 0 ，X 0 ) And the horizontal distance d between the minimum measured projection point and the projection initial position 0 Can be freely arranged.
The software used in the computer in the step 4 is digital uranium mine exploration software.
The step 4 comprises the following specific steps:
(1) The plan view is projected in coordinates (Y 0 ，X 0 ) For the initial coordinates of the drill hole, the first measuring point (H) of the drill hole coring time (nth time) n1 ，C n1 ) For the first point, the first point plane coordinates (Y n1 ，X n1 ) The second measuring point (H) of the drilling coring time (nth time) n2 ，C n2 ) For the second point, a second point plane coordinate (Y n1 ，X n1 ) Calculated by the method until the secondary measuring point junctionA bundle;
(2) With the first measuring point (H) of the n+1th pass of the borehole (n+1)1 ，C (n+1)1 ) For the first point of the round, the plane coordinates (Y (n+1)1 ，X (n+1)1 ) With the second measuring point (H) of the n+1th pass of the drilling (n+1)2 ，C (n+1)2 ) For the second point, a second point plane coordinate (Y (n+1)2 ，X (n+1)2 ) Calculating by the method until all the secondary measuring points are finished;
(3) And sequentially projecting the plane coordinate points calculated for each time to the plane graph, wherein the projection points for each time are connected by straight lines, so that the drawing of the single-time curve segment is completed, and the drawing of all the time drawing curves of the drilled holes is completed.
The coordinates (H) ni ，C ni ) The mapping to the plane coordinates (Y, X) is as follows: the plane relation of the ith measuring point of the nth time is as follows:
Y ni ＝k*H ni +Y 0
X ni ＝d 0 +d*(C ni -C min )/(C max -C min )+X 0
wherein Y is ni The projection ordinate of the ith measuring point of the nth layer of the plan view; x is X ni The projection abscissa of the ith measuring point of the nth layer of the plan view; y is Y 0 A plane projection view starting point ordinate; x is X 0 A plane projection drawing starting point abscissa; k longitudinal scale; d horizontal scale distance (the horizontal distance of the projection points of the maximum value and the minimum value of the measured values); d, d 0 The horizontal distance between the projection point of the minimum value of the measured value and the projection initial position, and the linear relation between the ith measured point and the (i+1) th measured point in a single round is as follows:
Y＝[(Y n(i+1) -Y ni )/(X n(i+1) -X ni )]*(X-X ni )+Y ni (X∈[X ni ，X n(i+1) ])。
the invention has the beneficial effects that: 1, the operation is simple and convenient; 2, realizing automatic drawing; 3, the figure is digitized, so that the figure is convenient to store; 4, the working efficiency is improved. The method is suitable for drawing the catalogue curves of various drill cores, can realize input data and automatically draw the catalogue curves, and greatly improves the working efficiency.
Drawings
Fig. 1 is a borehole core beta + gamma catalog curve, with the automatically drawn curve on the right side of the figure.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific examples.
An automatic drawing method of a uranium ore geological drilling core geophysical prospecting and recording curve comprises the following steps:
step 1: preparing a drill core geophysical prospecting database, wherein the database comprises a secondary n, a secondary hole depth hn, a secondary measuring point position anm, a secondary core length ln and a measured value Cnm;
step 2: arranging the cores in a mode that the depth bn of the bottom of the secondary core is equal to the depth hn of the secondary hole, and calculating the depth Hnm of the measuring point;
step 3: setting mapping scales of drill geophysical prospecting record data (Hnm, cnm) and corresponding positions (Y, X) on a plane, and calibrating projection starting point positions (Y0, X0) on the plane diagram.
Step 4: and drawing the corresponding drilling geophysical prospecting record data from the initial depth to the termination depth to the corresponding position on the screen section by section on a computer, namely finishing the mapping from coordinates (Hnm, cnm) to plane coordinates (Y, X). When the depth range and the measured value left and right scales are determined in the drawing on a plane, namely [ H0, hmax ] and [ Cmin, cmax ];
the database in the step 1 supports storage and space indexing and can be freely called.
The specific steps of the step 1 are as follows:
step 1.1: designing a drilling core cataloging database table based on an Access database structure, wherein the database comprises a secondary n, a secondary hole deep stop hn, a secondary measuring point position anm, a secondary core length ln and a measured value Cnm;
step 1.2: and adding drill core geophysical prospecting catalog data to the drill core catalog database table.
The specific steps of the step 2 are as follows:
step 2.1: arranging the cores in a mode that the depth bn of the bottom of the secondary core is equal to the depth hn of the secondary hole;
step 2.2: the measuring point depth calculation formula is as follows:
Hni＝hn-ln+ani(0≤ani≤ln)
hnm: drilling depth of the ith measuring point of the nth layer; hn: deeply stopping the nth secondary hole; ln: length of core for nth time; ani: the position of the ith measuring point of the nth time; cni: an nth layer is an ith station measurement.
The number m of one secondary measuring point is related to the distance c between the measuring points and the length of the core, and the relationship is as follows:
m＝[ln/c]+1
c, measuring point spacing distance, when the core is measured, c is more than or equal to 0.5m and less than or equal to 1m, when the core is measured, c is more than or equal to 0.1m and less than or equal to 0.2m, and the bracket is a fraction integer part
In the step 3, the vertical scale k, the horizontal scale distance d (the horizontal distance between the projection points of the maximum value and the minimum value of the measured value), the initial position (Y0, X0) of the projection point, and the horizontal distance d0 between the projection point of the minimum value of the measured value and the initial position of the projection can be freely set.
The software used in the computer in the step 4 is digital uranium mine exploration software.
The specific steps of the step 4 are as follows:
step 4.1: the plane map projection takes coordinates (Y0, X0) as drilling start coordinates, takes first measuring points (Hn 1, cn 1) of drilling coring times (nth times) as first points, calculates first point plane coordinates (Yn 1, X n 1) according to a mapping scale, takes second measuring points (Hn 2, cn 2) of drilling coring times (nth times) as second points, calculates second point plane coordinates (Yn 1, X n 1), and calculates the second point plane coordinates until the measuring points of the coring times are finished;
step 4.2: taking a first measuring point (H (n+1) 1 and C (n+1) 1 of the n+1 th time of drilling as a first point of the time, calculating plane coordinates (Y (n+1) 1 and X (n+1) 1) of the first point of the time according to a mapping scale, taking a second measuring point (H (n+1) 2 and C (n+1) 2) of the n+1 th time of drilling as a second point, and calculating plane coordinates (Y (n+1) 2 and X (n+1) 2) of the second point until all the measuring points of the time are finished;
and 4.3, sequentially projecting the plane coordinate points calculated for each time to the plane graph, connecting the projection points for each time by straight lines, and finishing drawing of the curve segments of the single time until finishing drawing of all drawing curves of the drill holes for the time.
The mapping from coordinates (Hni, cni) to plane coordinates (Y, X) in steps 4.1-4.3 is as follows:
the plane relation of the ith measuring point of the nth time is as follows:
Yni＝k*H ni+Y0
Xni＝d0+d*(Cni-Cmin)/(Cmax-Cmin)+X0
wherein Yni: the projection ordinate of the ith measuring point of the nth layer of the plan view; xni: the projection abscissa of the ith measuring point of the nth layer of the plan view; y0: a plane projection view starting point ordinate; x0: a plane projection drawing starting point abscissa; k: a longitudinal scale; d: horizontal scale distance (the horizontal distance of the projection points of the maximum value and the minimum value of the measured values); d0: the horizontal distance between the minimum measured value projection point and the projection initial position;
in a single pass, the linear relationship between the i-th measurement point and the i+1-th measurement point is as follows:
Y＝[(Yn(i+1)-Yni)/(Xn(i+1)-Xni)]*(X-Xni)+Yni(X∈[Xni，Xn(i+1)])。
Claims (6)
1. an automatic drawing method of a uranium ore geological drilling core geophysical prospecting and recording curve is characterized by comprising the following steps of: comprises the following steps of the method,
step 1: preparing a drill core geophysical prospecting record database, wherein the database comprises a secondary n and a secondary hole depth h n Position a of secondary measuring point nm Length of core n And measurement value C nm ；
Step 2: according to the depth b of the bottom of the core n Deep stop h of secondary hole n Arranging the rock cores in an equal mode, and calculating the depth H of the measuring point nm ；
Step 3: setting drill geophysical prospecting record data (H) nm ，C nm ) And is flat withMapping scale of corresponding position (Y, X) on the surface, calibrating projection start point position (Y) on the plan view 0 ，X 0 )；
Step 4: on a computer, the corresponding drill geophysical prospecting data are drawn to the corresponding position on the screen from the initial depth to the termination depth section by section, namely the completion coordinate (H nm ，C nm ) Mapping to plane coordinates (Y, X), depth range and measured value left and right scales are determined when drawing on plane, respectively are [ H ] 0 ，H max ]And [ C ] min ，C max ]；
The step 4 comprises the following specific steps:
(1) The plan view is projected in coordinates (Y 0 ，X 0 ) For the starting coordinates of the drill hole, the first measuring point (H) n1 ，C n1 ) For the first point, the first point plane coordinates (Y n1 ，X n1 ) The second measuring point (H) n2 ，C n2 ) For the second point, a second point plane coordinate (Y n2 ，X n2 ) Calculating by the method until the secondary measuring point is finished;
(2) With the first measuring point (H) of the n+1th pass of the borehole (n+1)1 ，C (n+1)1 ) For the first point of the round, the plane coordinates (Y (n+1)1 ，X (n+1)1 ) With the second measuring point (H) of the n+1th pass of the drilling (n+1)2 ，C (n+1)2 ) For the second point, a second point plane coordinate (Y (n+1)2 ，X (n+1)2 ) Calculating by the method until all the secondary measuring points are finished;
(3) Projecting the plane coordinate points calculated for each time to the plane graph in sequence, connecting the projection points for each time by straight lines, and finishing drawing of single-time curve segments until finishing drawing of all the repeated drawing curves of the drilling;
the coordinates (H) ni ，C ni ) The mapping to the plane coordinates (Y, X) is as follows: the plane relation of the ith measuring point of the nth time is as follows:
Y ni ＝k*H ni +Y 0
X ni ＝d 0 +d*(C ni -C min )/(C max -C min )+X 0
said Y ni The projection ordinate of the ith measuring point of the nth layer of the plan view; x is X ni The projection abscissa of the ith measuring point of the nth layer of the plan view; y is Y 0 A plane projection view starting point ordinate; x is X 0 A plane projection drawing starting point abscissa; k longitudinal scale; d horizontal scale distance; d, d 0 The horizontal distance between the projection point of the minimum value of the measured value and the projection initial position, and the linear relation between the ith measured point and the (i+1) th measured point in a single round is as follows:
Y＝[(Y n(i+1) -Y ni )/(X n(i+1) -X ni )]*(X-X ni )+Y ni (X∈[X ni ，X n(i+1) ])。
2. the automatic uranium ore geological drill core geophysical prospecting and recording curve drawing method as claimed in claim 1, wherein the method comprises the following steps of: the database in the step 1 supports storage and space indexing and can be freely called.
3. The automatic uranium ore geological drill core geophysical prospecting and recording curve drawing method as claimed in claim 2, wherein the method comprises the following steps of: the step 1 comprises the steps of,
(1) Based on the Access database structure, designing a database table for logging drill core, wherein the database comprises a recurrent number n and a recurrent number hole depth h n Position a of secondary measuring point nm Length of core n And measurement value C nm ；
(2) And adding drill core geophysical prospecting catalog data to the drill core catalog database table.
4. The automatic uranium ore geological drill core geophysical prospecting and recording curve drawing method as claimed in claim 1, wherein the method comprises the following steps of: the step 2 comprises the following specific steps,
(1) According to the depth b of the bottom of the core n And return toSecondary hole depth stop h n Arranging the cores in an equal manner;
(2) The measuring point depth calculation formula is as follows:
H ni ＝h n -l n +a ni (0≤a ni ≤l n )
wherein H is nm : drilling depth of the ith measuring point of the nth layer; h is a n : deeply stopping the nth secondary hole; l (L) n : length of core for nth time; a, a ni : the position of the ith measuring point of the nth time; c (C) ni : an nth layer is an ith station measurement.
5. An automatic uranium ore geological drill core geophysical prospecting curve drawing method as defined in claim 4, which is characterized by comprising the following steps: in the step 2, the number m of one secondary measuring point is related to the distance c between the measuring points and the length of the core, and the relationship is as follows:
m＝[l n /c]+1
and c, measuring point spacing distance, wherein when the rock core is measured, c is more than or equal to 0.5m and less than or equal to 1m, and when the rock core is measured, c is more than or equal to 0.1m and less than or equal to 0.2m, and the bracket is an integer part with decimal.
6. The automatic uranium ore geological drill core geophysical prospecting and recording curve drawing method as claimed in claim 1, wherein the method comprises the following steps of: in the step 3, the longitudinal scale k and the horizontal scale distance d of the drill core geophysical prospecting record curve are projected as the horizontal distances of the projection points of the maximum value and the minimum value of the measured values, and the initial position (Y) of the projection points 0 ，X 0 ) And the horizontal distance d between the minimum measured projection point and the projection initial position 0 Can be freely arranged.
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