积极应用有效勘测技术 努力提高数据资料质量

Energetically applying effective reconnaissance technologies to improve the quality of achievements

近年来勘测技术研究取得了可喜的进步 ,水利水电工程地质勘察逐渐形成了一套工作程序 ,其工作程序最重要的一个步骤是勘察数据资料的采集和地质概化模型的建立。除应重视数据资料的采集管理外 ,还应积极采用一些新的行之有效的技术手段来完成有关的勘测任务 ,以便为能提出满意的地质成果奠定坚实的基础。与数据资料采集有关的有效技术手段有 :地面地质测绘、金刚石小口径钻探、山地勘探、竖井与大口径钻探、钻孔彩色电视系统、岩土工程开挖面的快速地质编录系统、建立空间工程地质信息系统等。对任何一个大型的水电工程勘察 ,对系统数据资料建立起GIS和网络技术为支撑的工程地质信息系统是十分必要和实用的。这些有效技术都已在工程勘察中发挥了显著作用 ,得到广泛应用。

In the recent years, encouraging progress was made in researches on reconnaissance technologies and a working procedure was established for geologic exploration survey of water conservancy and hydropower projects. The most important step of the working procedure consists in data acquisition through exploration survey and in developing a generalized geologic model. In order to lay a solid foundation for obtaining satisfactory geologic results, some new effective technical measures should be adopted for carrying out exploratory tasks in addition to emphasizing the acquisition and management of data. The effective technical measures related to data acquisition include:ground geologic survey and mapping, small aperture drilling with diamond bits, excavating exploratory shafts and adits, large aperture drilling, borehole color television system, quick geologic compiling and recording system for geotechnical investigation in excavation, developing a spatial information system for engineering geology investigation, etc. Developing such an engineering geology information system supported by GIS and network technology is quite necessary and practical for any large hydropower projects geologic exploration survey. These effective techniques have played remarkable roles in engineering exploration and found extensive application.