CN102375917A - Self-adaption fine ore delineation method based on two-dimensional cross section - Google Patents
Self-adaption fine ore delineation method based on two-dimensional cross section Download PDFInfo
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- CN102375917A CN102375917A CN2010102546943A CN201010254694A CN102375917A CN 102375917 A CN102375917 A CN 102375917A CN 2010102546943 A CN2010102546943 A CN 2010102546943A CN 201010254694 A CN201010254694 A CN 201010254694A CN 102375917 A CN102375917 A CN 102375917A
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Abstract
The invention discloses a self-adaption fine ore delineation method based on a two-dimensional cross section. The method is implemented under the conditions of the two-dimensional cross section of a three-dimensional ore body and the total attitude direction vector of a two-dimensional ore body Kij and an ore body, and the two-dimensional cross section can be a polygon with holes. The method comprises the following steps of: 1, according to the attitude direction vector of the three-dimensional ore body, generating an ore body connection relationship to acquire a connection relationship and a wedge-out relationship of n sub-ore bodies and acquire a connection relationship and a wedge-out relationship of the holes simultaneously; 2, performing monomer three-dimensional modeling on the ore body and the holes; 3, performing three-dimensional modeling on the ore body through Boolean operation to acquire a final ore body; and 4, calculating the volume, the average grade and the ore amount of the ore body. The ore delineation method can be suitable for delineating the ore body which are provided with a complicated two-dimensional cross section and has an irregular shape, and can self-adaptively delineate a two-dimensional cross section-based fine ore body without manual interference.
Description
Technical field
The present invention relates to a kind of mineral resources drawn a circle to approve and the Reserves Evaluation method, particularly relate to the meticulous circle of a kind of self-adaptation ore deposit method based on two-dimensional cross-section.
Background technology
In mineral resources delineations and Reserves Evaluation field, the method for using always at present comprises artificial stage body volume calculation method and is the basis with the interactive approach that computer software provides, and calculates after adding boost line and control line artificially.
Wherein, Artificial stage body volume calculation method adopts formula
or formula
to calculate; Only be applicable near parallel section and the regular ore body of shape; For ore body in irregular shape; Not only be difficult to select computing formula; And, can not provide correct annexation, be difficult to iris out ore body.
The interactive approach that provides with computer software is the basis; Add artificially and carry out Calculation Method behind boost line and the control line when ore body such as complex-shaped, that two sections differ greatly and multiple-limb, multi-stylus go out is drawn a circle to approve automatically; Because the different operation personnel go out different conclusions easily to adding the assurance disunity of boost line and control line.
Therefore, need a kind of delineation that can adapt to out-of-shape ore body, can not have to iris out the method for ore body more accurately under the situation of manual intervention uniquely again with complicated two-dimensional section.
Summary of the invention
In order to address the above problem, the present invention aims to provide a kind of delineation that can adapt to the out-of-shape ore body with complicated two-dimensional section, again can be in the meticulous circle of the self-adaptation based on the two-dimensional cross-section ore deposit method that does not have to iris out uniquely under the situation of manual intervention ore body.
The technical scheme of the meticulous circle of self-adaptation ore deposit method that the present invention is based on two-dimensional cross-section is following:
The meticulous circle of the self-adaptation ore deposit method that the present invention is based on two-dimensional cross-section is at known ore body V
1, V
2..., the two-dimensional cross-section Si of Vn (i=1,2 ... M) and the two-dimentional ore body Kij among the Si (j=1,2 ..., ni) with the overall occurrence direction vector of ore body Kd (dx; Dy implements under condition dz), and wherein, Kij is the polygon in band cavity; The direction vector of said empty occurrence be Jd (dx, dy dz), may further comprise the steps:
S1: according to the direction vector Kd of occurrence (dx, dy dz), generate the ore body annexation, and the annexation that obtains n sub-ore body concerns as follows with pinching:
Lj＝{Kij，Klk}，
Wherein:
L
1, L
2..., Ln is corresponding ore body V respectively
1, V
2..., Vn;
Kij, Klk belong to two ore bodies in the adjacent section respectively;
Wherein " { " representative "＜" is " (" perhaps " [", " } " representative "＞" perhaps ") " perhaps "] perhaps ", angle brackets are represented pinching rear enclosed end, and parenthesis are represented not blind end of not pinching, and square bracket are represented direct blind end;
According to the direction vector Jd of empty occurrence (dx, dy dz), generate empty annexation, and the annexation that obtains p son cavity concerns as follows with pinching:
Dj＝{Jij，Jlk}，
Wherein:
D
1, D
2Dp is corresponding ore body T respectively
1, T
2..., Tp;
Jij, Jlk belong to two cavities in the adjacent section respectively, connect among the Vk but the Dj that connects must be contained in certain ore body;
Wherein " { " representative "＜" is " (" perhaps " [", " } " representative "＞" perhaps ") " perhaps "] perhaps ", angle brackets are represented pinching rear enclosed end, and parenthesis are represented not blind end of not pinching, and square bracket are represented direct blind end;
S2: carry out ore body L
1, L
2Ln and empty D
1, D
2..., the monomer three-dimensional modeling of Dp, obtain three-dimensional ore body Vj (j=1,2 ..n) with three-dimensional empty Tj (j=1,2 ..., p);
S3: utilize Boolean calculation that ore body is carried out three-dimensional modeling, obtain final ore body V.
S4: calculate ore body V volume, average grade and ore deposit amount.
Further, described circle ore deposit method is further comprising the steps of:
S5: be subdivided into the piece section to ore body V, then, insert out the grade of each piece section, ore body V is managed according to economic grade.
Further, among the described S2, carry out L
1, L
2..., Ln and D
1, D
2..., the concrete grammar of the monomer three-dimensional modeling of Dp may further comprise the steps:
S2-11: to ore body Lj={Kij, the end points polygon Kij of Klk} according to becoming the ore deposit constraint to confirm gradual manner, carries out polygon gradual change computing to Klk; Obtain serial polygon Kij, Kij1, Kij2;, Kijs, Klk; Utilize two-dimensional cross-section to arrive Kij2 to Kij1 to the synchronous tracing delineation Kij of three-dimensional reconstruction ..., Kijs is to the boundary surface of Klk;
S2-12: according to the two ends of pinching characteristic sealing Kij and Klk, concrete grammar is following:
If direct blind end carries out triangle division with the termination polygon and can obtain end face or bottom surface;
If pinching rear enclosed end then obtains the polygonal axis Z in termination and be the pinching axle, retrain triangle with termination polygon and pinching axle and be connected and obtain end face or bottom surface; If the pinching distance is longer, available peeling thinning algorithm is obtained serial refinement polygon Z1, Z2 ..., Zk, wherein last polygon Zk is the pinching axle, serves as that constraint is carried out triangle division and can be obtained end face or bottom surface with the pinching axle.
S2-21: to empty Dj={Jij, the end points polygon Jij of Jlk} according to becoming the ore deposit constraint to confirm gradual manner, carries out polygon gradual change computing to Jlk; Obtain serial polygon Jij, Jij1, Jij2;, Jijs, Jlk; Utilize two-dimentional empty section to arrive Jij2 to Jij1 to the synchronous tracing delineation Jij of three-dimensional reconstruction ..., Jijs is to the boundary surface of Jlk;
S2-22: according to the two ends of pinching characteristic sealing Jij and Jlk, concrete grammar is following:
If direct blind end carries out triangle division with the termination polygon and can obtain end face or bottom surface;
If pinching rear enclosed end then obtains the polygonal axis Z in termination and be the pinching axle, retrain triangle with termination polygon and pinching axle and be connected and obtain end face or bottom surface; If the pinching distance is longer, available peeling thinning algorithm is obtained serial refinement polygon Z1, Z2 ..., Zk, wherein last polygon Zk is the pinching axle, serves as that constraint is carried out triangle division and can be obtained end face or bottom surface with the pinching axle.
Further, among the described S3, utilize Boolean calculation that the concrete grammar that ore body carries out three-dimensional modeling may further comprise the steps:
S3-1: to ore body L
1, L
2..., Ln carries out union, obtains ore body L
0
S3-2: with L
0For the basis deducts D one by one
1, D
2..., Dp just obtains final ore body V.
The beneficial effect that the present invention is based on the meticulous circle of the self-adaptation ore deposit method of two-dimensional cross-section is:
The optimal algorithm, two-dimensional cross-section that full ore deposit, said ground method has proposed Optimum Matching algorithm, reference mark and control line between two-dimentional ore body retrains the axis pinching of gradual changed method and end ore body and the sane boolean operation method of refinement pinching method and complicated geological progressively to the two-dimensional cross-section ore body.
Final effect is science and the standardization that realizes calculation of reserves and Reserves Evaluation, finally realizes both gained of finding, promptly guarantees the crash consistency of visualization result and numerical evaluation, for the rational exploitation in mineral deposit provides decision support.
Embodiment
In order to further specify technical scheme of the present invention, the meticulous circle of the self-adaptation that the present invention is based on two-dimensional cross-section ore deposit method is described in conjunction with embodiment.
The meticulous circle of the self-adaptation ore deposit method that the present invention is based on two-dimensional cross-section is at known ore body V
1, V
2..., the two-dimensional cross-section Si of Vn (i=1,2 ... M) and the two-dimentional ore body Kij among the Si (j=1,2 ..., ni) with the overall occurrence direction vector of ore body Kd (dx; Dy implements under condition dz), and wherein, Kij is the polygon in band cavity; The direction vector of said empty occurrence be Jd (dx, dy dz), may further comprise the steps:
S1: according to the direction vector Kd of occurrence (dx, dy dz), generate the ore body annexation, and the annexation that obtains n sub-ore body concerns as follows with pinching:
Lj＝{Kij，Klk}，
Wherein:
L
1, L
2..., Ln is corresponding ore body V respectively
1, V
2..., Vn;
Kij, Klk belong to two ore bodies in the adjacent section respectively;
Wherein " { " representative "＜" is " (" perhaps " [", " } " representative "＞" perhaps ") " perhaps "] perhaps ", angle brackets are represented pinching rear enclosed end, and parenthesis are represented not blind end of not pinching, and square bracket are represented direct blind end;
According to the direction vector Jd of empty occurrence (dx, dy dz), generate empty annexation, and the annexation that obtains p son cavity concerns as follows with pinching:
Dj＝{Jij，Jlk}，
Wherein:
D
1, D
2Dp is corresponding ore body T respectively
1, T
2..., Tp;
Jij, Jlk belong to two cavities in the adjacent section respectively, connect among the Vk but the Dj that connects must be contained in certain ore body;
Wherein " { " representative "＜" is " (" perhaps " [", " } " representative "＞" perhaps ") " perhaps "] perhaps ", angle brackets are represented pinching rear enclosed end, and parenthesis are represented not blind end of not pinching, and square bracket are represented direct blind end;
S2: carry out L
1, L
2Ln and D
1, D
2..., the monomer three-dimensional modeling of Dp, obtain three-dimensional ore body Vj (j=1,2 ..n) with three-dimensional empty Tj (j=1,2 ..., p); Carry out L
1, L
2..., Ln and D
1, D
2..., the concrete grammar of the monomer three-dimensional modeling of Dp may further comprise the steps:
S2-11: to ore body Lj={Kij, the end points polygon Kij of Klk} according to becoming the ore deposit constraint to confirm gradual manner, carries out polygon gradual change computing to Klk; Obtain serial polygon Kij, Kij1, Kij2;, Kijs, Klk; Utilize two-dimensional cross-section to arrive Kij2 to Kij1 to the synchronous tracing delineation Kij of three-dimensional reconstruction ..., Kijs is to the boundary surface of Klk;
S2-12: according to the two ends of pinching characteristic sealing Kij and Klk, concrete grammar is following:
If direct blind end carries out triangle division with the termination polygon and can obtain end face or bottom surface;
If pinching rear enclosed end then obtains the polygonal axis Z in termination and be the pinching axle, retrain triangle with termination polygon and pinching axle and be connected and obtain end face or bottom surface; If the pinching distance is longer, available peeling thinning algorithm is obtained serial refinement polygon Z1, Z2 ..., Zk, wherein last polygon Zk is the pinching axle, serves as that constraint is carried out triangle division and can be obtained end face or bottom surface with the pinching axle.
S2-21: to empty Dj={Jij, the end points polygon Jij of Jlk} according to becoming the ore deposit constraint to confirm gradual manner, carries out polygon gradual change computing to Jlk; Obtain serial polygon Jij, Jij1, Jij2;, Jijs, Jlk; Utilize two-dimentional empty section to arrive Jij2 to Jij1 to the synchronous tracing delineation Jij of three-dimensional reconstruction ..., Jijs is to the boundary surface of Jlk;
S2-22: according to the two ends of pinching characteristic sealing Jij and Jlk, concrete grammar is following:
If direct blind end carries out triangle division with the termination polygon and can obtain end face or bottom surface;
If pinching rear enclosed end then obtains the polygonal axis Z in termination and be the pinching axle, retrain triangle with termination polygon and pinching axle and be connected and obtain end face or bottom surface; If the pinching distance is longer, available peeling thinning algorithm is obtained serial refinement polygon Z1, Z2 ..., Zk, wherein last polygon Zk is the pinching axle, serves as that constraint is carried out triangle division and can be obtained end face or bottom surface with the pinching axle.
S3: utilize Boolean calculation that ore body is carried out three-dimensional modeling, concrete grammar may further comprise the steps:
S3-1: to ore body L
1, L
2..., Ln carries out union, obtains ore body L
0
S3-2: with L
0For the basis deducts D one by one
1, D
2..., Dp just obtains final ore body V.
Obtain final ore body V.
S4: calculate ore body V volume, average grade and ore deposit amount.
S5: be subdivided into the piece section to ore body V, then, insert out the grade of each piece section, ore body V is managed according to economic grade.
Claims (4)
1. based on the meticulous circle of the self-adaptation of two-dimensional cross-section ore deposit method, it is characterized in that: described method is at known ore body V
1, V
2..., the two-dimensional cross-section Si of Vn (i=1,2 ... M) and the two-dimentional ore body Kij among the Si (j=1,2 ..., ni) with the overall occurrence direction vector of ore body Kd (dx; Dy implements under condition dz), and wherein, Kij is the polygon in band cavity; The direction vector of said empty occurrence be Jd (dx, dy dz), may further comprise the steps:
S1: according to the direction vector Kd of occurrence (dx, dy dz), generate the ore body annexation, and the annexation that obtains n sub-ore body concerns as follows with pinching:
Lj＝{Kij，Klk}，
Wherein:
L
1, L
2..., Ln is corresponding ore body V respectively
1, V
2..., Vn;
Kij, Klk belong to two ore bodies in the adjacent section respectively;
Wherein " { " representative "＜" is " (" perhaps " [", " } " representative "＞" perhaps ") " perhaps "] perhaps ", angle brackets are represented pinching rear enclosed end, and parenthesis are represented not blind end of not pinching, and square bracket are represented direct blind end;
According to the direction vector Jd of empty occurrence (dx, dy dz), generate empty annexation, and the annexation that obtains p son cavity concerns as follows with pinching:
Dj＝{Jij，Jlk}，
Wherein:
D
1, D
2Dp is corresponding ore body T respectively
1, T
2..., Tp;
Jij, Jlk belong to two cavities in the adjacent section respectively, connect among the Vk but the Dj that connects must be contained in certain ore body;
Wherein " { " representative "＜" is " (" perhaps " [", " } " representative "＞" perhaps ") " perhaps "] perhaps ", angle brackets are represented pinching rear enclosed end, and parenthesis are represented not blind end of not pinching, and square bracket are represented direct blind end;
S2: carry out ore body L
1, L
2Ln and empty D
1, D
2..., the monomer three-dimensional modeling of Dp, obtain three-dimensional ore body Vj (j=1,2 ..n) with three-dimensional empty Tj (j=1,2 ..., p);
S3: utilize Boolean calculation that ore body is carried out three-dimensional modeling, obtain final ore body V.
S4: calculate ore body V volume, average grade and ore deposit amount.
2. the meticulous circle of the self-adaptation based on two-dimensional cross-section according to claim 1 ore deposit method, it is characterized in that: described circle ore deposit method is further comprising the steps of:
S5: be subdivided into the piece section to ore body V, then, insert out the grade of each piece section, ore body V is managed according to economic grade.
3. the meticulous circle of the self-adaptation based on two-dimensional cross-section according to claim 1 ore deposit method is characterized in that: among the described S2, carry out L
1, L
2..., Ln and D
1, D
2..., the concrete grammar of the monomer three-dimensional modeling of Dp may further comprise the steps:
S2-11: to ore body Lj={Kij, the end points polygon Kij of Klk} according to becoming the ore deposit constraint to confirm gradual manner, carries out polygon gradual change computing to Klk; Obtain serial polygon Kij, Kij1, Kij2;, Kijs, Klk; Utilize two-dimensional cross-section to arrive Kij2 to Kij1 to the synchronous tracing delineation Kij of three-dimensional reconstruction ..., Kijs is to the boundary surface of Klk;
S2-12: according to the two ends of pinching characteristic sealing Kij and Klk, concrete grammar is following:
If direct blind end carries out triangle division with the termination polygon and can obtain end face or bottom surface;
If pinching rear enclosed end then obtains the polygonal axis Z in termination and be the pinching axle, retrain triangle with termination polygon and pinching axle and be connected and obtain end face or bottom surface; If the pinching distance is longer, available peeling thinning algorithm is obtained serial refinement polygon Z1, Z2 ..., Zk, wherein last polygon Zk is the pinching axle, serves as that constraint is carried out triangle division and can be obtained end face or bottom surface with the pinching axle.
S2-21: to empty Dj={Jij, the end points polygon Jij of Jlk} according to becoming the ore deposit constraint to confirm gradual manner, carries out polygon gradual change computing to Jlk; Obtain serial polygon Jij, Jij1, Jij2;, Jijs, Jlk; Utilize two-dimentional empty section to arrive Jij2 to Jij1 to the synchronous tracing delineation Jij of three-dimensional reconstruction ..., Jijs is to the boundary surface of Jlk;
S2-22: according to the two ends of pinching characteristic sealing Jij and Jlk, concrete grammar is following:
If direct blind end carries out triangle division with the termination polygon and can obtain end face or bottom surface;
If pinching rear enclosed end then obtains the polygonal axis Z in termination and be the pinching axle, retrain triangle with termination polygon and pinching axle and be connected and obtain end face or bottom surface; If the pinching distance is longer, available peeling thinning algorithm is obtained serial refinement polygon Z1, Z2 ..., Zk, wherein last polygon Zk is the pinching axle, serves as that constraint is carried out triangle division and can be obtained end face or bottom surface with the pinching axle.
4. the meticulous circle of the self-adaptation based on two-dimensional cross-section according to claim 1 ore deposit method is characterized in that: among the described S3, utilize Boolean calculation that the concrete grammar that ore body carries out three-dimensional modeling may further comprise the steps:
S3-1: to ore body L
1, L
2..., Ln carries out union, obtains ore body L
0
S3-2: with L
0For the basis deducts D one by one
1, D
2..., Dp just obtains final ore body V.
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| CN102375917B CN102375917B (en) | 2014-04-23 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030233217A1 (en) * | 2002-06-14 | 2003-12-18 | Schlumberger Technology Corporation | Method and program storage device for generating grids representing the architecture of fluvial reservoirs |
| CN1776361A (en) * | 2005-11-18 | 2006-05-24 | 宝钢集团上海梅山有限公司 | Method for estimating volume of irregular-shaped massive ore rock |
| CN101038680A (en) * | 2007-04-29 | 2007-09-19 | 中国地质大学（北京） | Method for finding mine with cubic forecast model based on three-dimensional modeling |
| CN101114276A (en) * | 2007-08-28 | 2008-01-30 | 中国地质大学（武汉） | Solid body mineral deposit three-dimensional visual reserves calculation system and computation method |
| CN101359047A (en) * | 2008-09-23 | 2009-02-04 | 西部矿业股份有限公司 | Downhole wireless positioning method based on understanding |
-
2010
- 2010-08-17 CN CN201010254694.3A patent/CN102375917B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030233217A1 (en) * | 2002-06-14 | 2003-12-18 | Schlumberger Technology Corporation | Method and program storage device for generating grids representing the architecture of fluvial reservoirs |
| CN1776361A (en) * | 2005-11-18 | 2006-05-24 | 宝钢集团上海梅山有限公司 | Method for estimating volume of irregular-shaped massive ore rock |
| CN101038680A (en) * | 2007-04-29 | 2007-09-19 | 中国地质大学（北京） | Method for finding mine with cubic forecast model based on three-dimensional modeling |
| CN101114276A (en) * | 2007-08-28 | 2008-01-30 | 中国地质大学（武汉） | Solid body mineral deposit three-dimensional visual reserves calculation system and computation method |
| CN101359047A (en) * | 2008-09-23 | 2009-02-04 | 西部矿业股份有限公司 | Downhole wireless positioning method based on understanding |
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