摘要
Abstract
According to CASS7. 0 cross-section method, the quantities for earth rock excavation under complicated geological conditions are calculated perceptually and accurately by using 3D polylines and surface domain of AutoCAD. Thus, a new calcu-lation method is proposed by the engineering data of the section in Shahe Aqueduct of MRP of South-to-North Water Diversion Project. Firstly, the original cross-sectional diagram is obtained from the field terrain data, and then the post-excavated digital topographic map is generated on the basis of DTM. Various geological boundaries and points of boundaries are marked on the map and illustrated in the original cross-sectional diagram. The final diagram containing the original ground lines and designed ter-rain lines and multi-sectional geological boundaries is formed. The result shows that the diagram drawing can realize the sepa-rate quantity calculation for multi-stratified geological structures and intuitive description of the quantities for earth-rock exca-vation.关键词
工程量/断面法/多层地质结构/沙河渡槽/南水北调中线工程Key words
engineering quantities/cross-section method/multi-stratified geological structure/Shahe Aqueduct/MRP of South-to-North Water Diversion Project分类
建筑与水利
