水利水电科技进展Issue(5)：45-49,5.DOI:10.3880/j.issn.10067647.2014.05.009
坪头水电站岩溶砂化细晶白云岩的特性及围岩分类
Characteristics of karst sanded fine-crystalline dolomite and wall rock classification for Pingtou Hydropower Statio
田启文 1岳朝林2
作者信息
- 1. 中国地质大学 武汉 环境学院，湖北 武汉 430074
- 2. 中国电建集团成都勘测设计研究院有限公司，四川 成都 610072
- 折叠
摘要
Abstract
The hydrological and karstification conditions at the Pingtou Hydropower Station were investigated aiming to identify the classification of the fine-crystalline dolomite of the wall rocks at the end of the diversion tunnel and hydraulic structure chamber for geological basis of the geological engineering design. Furthermore, the mechanism of the sanded fine-crystalline dolomite due to the intense karstification and corrosion effect was obtained. Based on a large quantity of rocks sections experiments for identification and physical property, material composition, physical and mechanical properties of the wall rocks of different karst corrosion extent were fully surveyed. In accordance with the national standards, combined with experimental results and actual conditions in the excavation process of cave chambers, engineering geological classifications and categories of the wall rocks were determined byⅢ,ⅣandⅤ, which could serve as focused engineering measurements on the different categories, respectively, to maintain the stability and safe functioning of wall rock of the hydraulic structures.关键词
细晶白云岩/溶蚀/砂化/围岩分类/坪头水电站Key words
fine-crystalline dolomite/karst/sanded/classification of wall rock/Pingtou Hydropower Station分类
天文与地球科学引用本文复制引用
田启文,岳朝林..坪头水电站岩溶砂化细晶白云岩的特性及围岩分类[J].水利水电科技进展,2014,(5):45-49,5.
