滇中引水工程白云岩砂化分级体系研究

依托滇中玉溪段砂化白云岩洞段引水工程，经过现场勘探，结合岩体质量指标和声波测试分析，从地质主要特征、质量指标、围岩等级等方面区分不同砂化程度，将白云岩砂化程度划分为轻微砂化、中等砂化、强烈砂化、剧烈砂化四个等级。建立较完整的白云岩砂化程度分级体系，以指导工程设计和施工。

Study on Classification System of Sandified Dolomite Mass in Central Yunnan Water Diversion Project

Relying on sandified dolomite tunnel in Yuxi Section of Central Yunnan Water Diversion Project, through field investigation in combination with rock mass quality index and acoustic test analysis, the different sandifications were distinguished from such aspects as major geological characteristics, quality index and surrounding rock grade, and the dolomite sandification was divided into four grades: slightly sandified, moderately sandified, heavily sandified and intensely sandified. A relatively complete dolomite sandification classification system was established to guide engineering and construction.