多信息融合的三维地质体建模与应用研究  

Research on 3D Geological Body Multi information Fusion Modelling and Application

作　　者：覃鹏 肖柏林 秦帅 王贻明[2,4] 杨世兴 QIN Peng;XIAO Bolin;QIN Shuai;WANG Yiming;YANG Shixing(China Nonferrous Metals Innovation Research Institute(Tianjin)Co.,Ltd.,Tianjin 300393,China;School of Civil and Resources Engineering,University of Science and Technology Beijing,Beijing 100083,China;NFC Africa Mining Plc,Beijing 100083,China;State Key Laboratory of High-Efficient Mining and Safety of Metal Mine,Ministry of Education,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]中色创新研究院(天津)有限公司,天津300393 [2]北京科技大学土木与资源工程学院,北京100083 [3]中色非洲矿业有限公司,北京100083 [4]北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083

出　　处：《矿业研究与开发》2024年第10期224-230,共7页Mining Research and Development

基　　金：国家重点研发计划项目(2022YFC3004601)。

摘　　要：为了给开采设计、生产探矿、开拓掘进等采矿全过程提供一个精准、复合、高效的三维地质体模型,通过理论分析、建模计算、现场结合等手段,提出一种完整岩石单轴抗压强度、RMR、RQD等多信息融合的三维地质体精准建模方法。结果表明:定向钻孔岩芯的节理间距最大值为13.35 cm,均值为0.37 cm,多数服从负指数分布,节理产状以北西向节理最发育。以8号勘探线为界,东部矿岩体属于Ⅲ类、Ⅳ类岩体,西部属于Ⅳ类岩体。对三维模型取任意位置剖面,在1 570 m水平,上盘围岩质量比下盘差,在9号至11号勘探线的范围,上盘及中部围岩接近于Ⅴ类围岩,5号勘探线上盘1 590~1 630 m范围内存在Ⅴ类破碎围岩,属于极不稳定区。新模型对矿山的安全高效生产具有重要意义。In order to provide an accurate, composite and efficient three-dimensional geological body model for the whole mining process such as mining design, production prospecting and excavation, a three-dimensional geological body accurate modeling method based on uniaxial compressive strength of intact rock, RMR, RQD and other information fusion was proposed by means of theoretical analysis, modeling calculation and field combination. The results show that the maximum joint spacing of directional drilling cores was 13.35 cm, and the average value was 0.37 cm. Most of them obey the negative exponential distribution, and the joints in the northwest direction were the most developed. Taking the No.8 exploration line as the boundary, the eastern ore rock mass belongs to class Ⅲ and Ⅳ rock mass, and the western belongs to class Ⅳ rock mass. Taking a cross-section at any position on the three-dimensional model, at the level of 1 570 m, the quality of the surrounding rocks on the hanging wall is worse than that on the footwall. In the range of No.9 to No.11 exploration line, the surrounding rocks on the hanging wall and in the middle is close to Class Ⅴ surrounding rocks. There is Class Ⅴ broken surrounding rocks in the range of 1 590-1 630 m on the hanging wall of No.5 exploration line, which belongs to the extremely unstable area. The new model is of great significance to the safe and efficient production of mines.

关 键 词：地质体 三维建模 钻孔数据库 数字岩芯 岩体稳定性 

分 类 号：TD851[矿业工程—金属矿开采]