摘要
在传统的水电勘测设计过程中,地质模型常用传统的二维剖面形式展现,无法构建地质体的空间几何形态及分布。利用GOCAD系统强大的三维建模功能建立某水库电站坝址区工程地质模型,模型直观显示了河床基覆界面、砂层透镜体、覆盖层内部界面、风化卸荷面等地质对象的空间属性,并借助地质解译、空间分析功能进行超深厚覆盖层条件下河谷形态研判及天然防渗铺盖层可靠性分析。其意义在于加强坝址区超深厚覆盖层成因以及河谷演化地质宏观认识,指导后续勘探布置,实现水电工程协同设计。
Geological models are often shown in traditional two - dimensional profiles in traditional design methods ol hy-dropower survey, therefore,the spatial geometry shape and distribution ol geological bodies cannot be constructed. In this paper,the engineering geological model of dam site of reservoir power station is established l）y 3D modeling function in GOCAD system. The model shows the spatial attributes of geological objects such as riverbed base cover interface ’ sand lens,covering internal interface,weathering and unloading surface. At the same time ’ the river valley shape analysis and reliability analysis of natural impervious blanket can be carried out under ultra - deep overburden through geological in-terpretation and spatial analysis function. It is significantly to enhance geology awareness of formation of ultra-deep over -burden and valley evolutionin dam site area,guide the layout of exploration subsequently and realize the collaborative de-sign of hydropower projects.
出处
《资源环境与工程》
2017年第4期510-513,共4页
Resources Environment & Engineering
