蒲石河抽水蓄能电站地下厂房岩体结构特征及围岩分类

The Rock Mass Structures Characteristics and Wall Rock Classification of Underground Powerhouse of Pushi River Pumped Storage Power Station

隧道及地下工程围岩分类是在长期实践的基础上发展起来的,并与地质科学、岩土工程及量测技术的发展密切相关。近期的围岩分类中,引进了岩体力学的基本概念和数理统计方法,如考虑初始应力场、坑道周边位移值,以及量测信息等,使围岩分类逐渐从定性分类向定量分类方向发展。到目前为止,已经提出和正在应用的围岩分类约有50多种,但其中绝大多数仍处于定性描述或经验判别的阶段,尚需进一步研究和完善。

The classification of wall rocks in tunnel and underground engineering is developed on the basis of long-term practice, and closely related to the development of geoscience, geotechnical engineering and measurement technology. On recent classification of wall rocks, the basic concept of rock mechanics and mathematical statistics method, such as initial stress field, displacement of tunnel surrounding as well as the measured value of information and etc. were recommended, the classification of wall rocks were developed from quantitative classification to qualitative. So far, about 50 kinds of methods has been proposed and applied, but most of them are still in a stage of qualitative description or experience discrimination, further research and improvement are necessary.