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基础上，针对膨胀性岩石的复杂性和边坡病害的发育程度，采用数学统计分析方法，建立了以岩粉自由膨胀率（Ｆｘ）和岩石干燥饱和吸水率（Ｒｄｗ）为指标的岩石膨胀性综合评价标准，提出了膨胀性岩石堑坡工程的设计原则。
Based on the complexity of expansive rocks and the degree of slope disease development, the mathematical expansions of rock expansions According to the comprehensive evaluation criteria, the design principle of expansive rock slope cutting project is proposed.