露天矿山超层开采工程量测算  

Engineering Quantity Calculation of Super-layer Mining in Open-pit Mine

作　　者：刘丽 刘少宇 宋永飞 黄川 LIU Li;LIU Shaoyu;SONG Yongfei;HUANG Chuan(Department of Natural Resources of Ningxia Hui Autonomous Region,Yinchuan 750002,China;Northern University for Nationalities,Yinchuan 750030,China)

机构地区：[1]宁夏回族自治区国土资源调查监测院,宁夏银川750002 [2]北方民族大学,宁夏银川750030

出　　处：《地理空间信息》2024年第12期110-113,共4页Geospatial Information

基　　金：宁夏自然科学基金资助项目(2021AAC03432,2021AAC03431);宁夏重点研发计划资助项目(2021BEG03001)。

摘　　要：随着倾斜摄影技术的发展,施工动态监测和工程量测算精度逐渐提高。为测算A矿超层开采工程量,基于无人机影像,借助Pix4D、大疆智图软件分别进行空中三角建模,生成2种3D模型和DOM(数字正射影像图)、DSM(数字表面模型)等,利用EPS软件提取高程信息,通过CASS软件测算超采量、挖方量,将基于无人机数据与传统测绘数据获得的超采量、挖方量分别与实际超采量、挖方量对比,发现:①随提取高程点间距减小,基于2种模型的测算结果越接近实际超采量、挖方量,准确率均升高,由97.00%增至99.00%以上,差异较小;②5 m间隔下,无人机数据与传统测绘数据测算结果基本一致,但与实际超采量、挖方量存有一定误差,误差均高于0.60%;③除5 m间隔下,DTM(数字地面模型)法的测算结果准确率均高于99.00%,准确率较高,更加稳定。With the development of oblique photography technology,the accuracy of construction dynamic monitoring and engineering quantity calculation has gradually improved.In order to calculate the engineering quantity of overmining work in mine A,based on UAV images,we used Pix4D and DJI Zhitu software to conduct 3D modeling,respectively,used EPS to extract elevation information,and used CASS to calculate the amount of overmining and excavation.Comparison of engineering quantities obtained based on UAV data and mapping data with actual data,we found that①as the spacing of extracted elevation points decreased,the measurement results based on the two models increased from 97.00%to more than 99.00%.②At 5 m interval,the UAV data was generally consistent with the mapped data,and the errors were all higher than 0.60%.③The result accuracy of DTM method were higher than 99.00%,except under the 5 m interval.

关 键 词：超层开采 方格网法 DTM 工程量 无人机 

分 类 号：P258[天文地球—测绘科学与技术]