| 赵鸿燕,戴立乾,关小荣,张肖盼,陆永红,蒋兆莉,杨英奇.勘探线剖面图不同坐标系三维空间转换[J].矿产勘查,2025,16(S1):242-247 |
| 勘探线剖面图不同坐标系三维空间转换 |
| Study on prospecting line section 3D transformation to another coordinate system |
| 投稿时间：2023-10-16 |
| DOI：10.20008/j.kckc.2025S1029 |
| 中文关键词: 3DMine 勘探线剖面图 坐标系 MapGIS 钻孔 |
| 英文关键词: 3DMine prospecting line section coordinate system MapGIS borehole |
| 基金项目:本文受河南省矿产资源国情调查:自然资源部国情调查试点项目(自然资办函〔2018〕1694号)资助。 |
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| 中文摘要: |
| 针对勘探线剖面图向不同坐标系的三维空间转换问题，本文提出钻勘垂交法，从叠合图和勘探线剖面图上选 2个钻孔，绘制钻孔与勘探线的垂线并获取垂线与勘探线交点坐标，通过坐标转换使勘探线剖面图转换为叠合图所在坐标系的三维空间。以皇城山银矿区为例，采用钻勘垂交法，将北京 1954坐标系的勘探线 12线进行转换到 CGCS2000坐标系的三维空间，研究结果表明:勘探线坐标网相交法适用于勘探线剖面图向同一坐标系三维空间转换；钻勘垂交法解决了坐标系不一致造成的转换后位置发生偏差的问题，适用于勘探线剖面图向不同坐标系三维空间转换且简单高效。 |
| 英文摘要: |
| Based on the existing research，3DMine is widely used in 3D modeling and visualization，reserve estimation，ore body prediction and mine management，and there are some discussions in 3D transformation of prospecting line section，such as 3D transformation of polygonal prospecting line and the coordinate transformation between 2D and 3D，but there isn’t a simple and efficient method for the transformation to 3D space whichcoordinate system is different from the prospecting line section. In the paper，Borehole-Prospecting Perpendicular is proposed to solve the problem of prospecting line section transformation to 3D space of another coordinate system. This method includes three key steps:firstly，selecting two boreholes from prospecting line section and composite map；secondly，calculating coordinates of both sides of boreholes and drawing perpendicular to prospect. ing line section；obtaining the coordinates of the intersection points and transforming. Taking the Huangchengshansilver mining as an example，the No. 12 prospecting line section in Beijing 1954 Coordinate system is transformed to CGCS 2000 by Borehole-Prospecting Perpendicular. The results showed that the coordinate transformation by theintersection points of prospecting line and coordinate network is only applicable to the same coordinate system；the Borehole-Prospecting Perpendicular is easy and can effectively solve the problem of position deviation by different coordinate systems，and can be used for transformation to 3D space of another coordinate system. |
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