基于智能岩性识别的爆破岩体三维实体模型建立  

Establishment of a 3D solid model blasting rock mass based on intelligent lithology identification

作　　者：陈应显[1] 王鹏飞 CHEN Yingxian;WANG Pengfei(College of Mines,Liaoning Technical University,Fuxin 123000,China)

机构地区：[1]辽宁工程技术大学矿业学院,辽宁阜新123000

出　　处：《煤田地质与勘探》2022年第4期92-97,共6页Coal Geology & Exploration

基　　金：国家自然科学基金项目(51974144,51874160);辽宁工程技术大学学科创新团队资助项目(LNTU20TD-01)。

摘　　要：随着智能钻机的研发和使用,能够准确地获得爆破钻孔的岩性数据。通过建立炮孔数据库对智能识别的炮孔数据进行存储和管理;以炮孔岩性数据为样本,使用距离平方反比法对爆破区域范围内的实体单元进行插值,生成爆破岩体三维实体模型;使用爆破区域范围多边形和采场三角网先后对岩体三维实体模型进行裁切,得到裁切后的爆破岩体三维实体模型。使用C++编程实现爆破岩体三维实体模型建立的所有过程,以内蒙古锡林浩特某露天矿918平盘爆破为应用实例,建立该爆破区域的岩体三维实体模型。通过该爆破岩体三维实体模型计算炮孔装药量,与单孔岩性计算炮孔装药量结果进行对比,结果表明,通过三维岩体模型计算炮孔装药量有效地降低了爆破成本,提高了爆破效率。With the development and application of intelligent drilling machine,the lithology data of blasting borehole can be obtained accurately.The blast-hole database is established to store and manage the intelligently identified blasthole data.Taking the rock property data of blast hole as the sample,the inverse distance square method is used to interpolate the solid elements within the blasting area to generate the 3D solid model of blasting rock mass.The 3D solid model of rock mass was cut by using the polygon of blasting area and the triangular network of bench,and then the 3D solid model of blasting rock mass was obtained.C++programming is used to realize all the process of establishing 3D solid model of blasting rock mass.Taking 918 bench blasting of an open pit mine in Xilinhot,Inner Mongolia as an example,the 3D solid model of rock mass in the blasting area is established.The blasting charge calculated by the three-dimensional rock mass model in this area is compared with that calculated by the single hole rock property.The results show that the blasting cost is effectively reduced and the blasting efficiency is improved by calculating the blasting charge by the three-dimensional rock mass model.

关 键 词：爆破岩体 三维模型 岩性识别 智能钻机 

分 类 号：TD05[矿业工程]