An automatic unified modeling method of geological object and engineering object based on tri-prism(TP)  

作　　者：张荣春 李浩 吴铭飞 王亚芹 

机构地区：[1]School of Earth Sciences and Engineering, Hohai University [2]Department of Water Conservancy, Zhejiang Tongji Vocational College of Science and Technology

出　　处：《Journal of Central South University》2015年第4期1419-1426,共8页中南大学学报（英文版）

基　　金：Project(BK2012812)supported by the Natural Science Foundation of Jiangsu Province,China;Project(51079053)supported by the National Natural Science Foundation of China;Project(KYLX_0493)supported by the Scientific Research and Innovation Program for College Graduates of Jiangsu Province,China;Project(2014B38814)supported by the Fundamental Research Funds for Central Universities,China;Project(2014.1526)supported by the Open Research Fund Program of Key Laboratory of Geological Information of Ministry of Land and Resources,China

摘　　要：For the interaction relation between geological object and engineering object in some fields related to water conservancy and hydropower, a unified modeling idea was proposed. On the basis of summarizing both advantages and disadvantages of existing modeling methods, an automatic unified modeling method of both engineering and geological objects based on tri-prism(TP) model was presented. Through the lossless correction algorithm of deviated drill holes contained in this method, the real deviated drill holes could be corrected into the equivalent virtual vertical ones. And the correction accuracy fully meets the requirements of unified modeling. With the virtual vertical drilling data, TIN construction of both cover layer and other stratums would be built in order to obtain the 3D geological model. Then, the engineering design data would be introduced into the 3D geological model for achieving unified modeling. For this process, the volume subdividing and restructuring principles were introduced to deal with the spatial relationships between engineering object and geological object. In order to improve the efficiency of unified modeling, the reconstruction of TIN based on constraint information was also applied in this method. At last, the feasibility and validation of the unified modeling method as well as its relevant key algorithms were verified by specific experiments and analysis of results.For the interaction relation between geological object and engineering object in some fields related to water conservancy and hydropower, a unified modeling idea was proposed. On the basis of summarizing both advantages and disadvantages of existing modeling methods, an automatic unified modeling method of both engineering and geological objects based on tri-prism（TP） model was presented. Through the lossless correction algorithm of deviated drill holes contained in this method, the real deviated drill holes could be corrected into the equivalent virtual vertical ones. And the correction accuracy fully meets the requirements of unified modeling. With the virtual vertical drilling data, TIN construction of both cover layer and other stratums would be built in order to obtain the 3D geological model. Then, the engineering design data would be introduced into the 3D geological model for achieving unified modeling. For this process, the volume subdividing and restructuring principles were introduced to deal with the spatial relationships between engineering object and geological object. In order to improve the efficiency of unified modeling, the reconstruction of TIN based on constraint information was also applied in this method. At last, the feasibility and validation of the unified modeling method as well as its relevant key algorithms were verified by specific experiments and analysis of results.

关 键 词：tri-prism（TP） model unified modeling deviated drill holes correction volume subdividing constraint information 

分 类 号：P628[天文地球—地质矿产勘探]