水布垭大坝坝址左岸岩溶化地层三维计算机模拟  

THREE-DIMENSIONAL COMPUTER SIMULATION OF KARST STRATA ON LEFT BANK OF SHUIBUYA DAM

作　　者：曾钱帮[1] 陈祥军[2] 张菊明[1] 王思敬[1] 马凤山[1] 

机构地区：[1]中国科学院地质与地球物理研究所,北京100029 [2]石家庄铁道学院,河北石家庄050043

出　　处：《地球与环境》2005年第3期41-48,共8页Earth and Environment

摘　　要：详尽地阐述了由多个椭球洞体生成复杂溶蚀孔洞的原理、三维随机洞体的数学模型以及确定性洞体的数学描述和计算机显示方法,为岩溶化岩体的溶蚀率和渗透特性的研究提供了计算机模拟手段。根据野外现场调查资料、平面地质图、灌浆帷幕剖面图,提取了水布垭大坝坝址左岸岩溶化地层的有关数据,得到了岩溶化地层的三维地质图和沿灌浆帷幕线的剖面图。The principle that composite solution cavity is generated by way of intersecting several ellipsoids, the mathematic modeling of three-dimensional random cavities and the mathematic description and computer display method of deterministic cavities are expatiated on. Mathematic modeling of three-dimensional random cavities suggested that this paper provides computer simulation means for research on solution ratio and permeability of karstified rocks. According to field survey data, planar geological map and grout curtain cross-section, the relevant data of karst strata on the left bank of the Shuibuya Dam are extracted to draw three dimensional geological perspective graph and cross-section along the line of grout curtain.

关 键 词：岩溶化岩体 椭球洞体 三维随机洞体 溶蚀率 水布垭大坝 计算机模拟 

分 类 号：P642[天文地球—工程地质学]