吉林大学学报(地球科学版) ›› 2018, Vol. 48 ›› Issue (5): 1532-1538.doi: 10.13278/j.cnki.jjuese.20180170
• 中国水利学会勘测专业委员会专栏 • 上一篇
李雷, 王贵军, 张一, 王冠霖
Li Lei, Wang Guijun, Zhang Yi, Wang Guanlin
摘要: 风化作用和卸荷作用都会导致岩体破碎。在探硐腰线上测试岩体的纵波速度和岩石的回弹值,并对测得的纵波速度和回弹值分别进行聚类分析,分成不同的数据组。根据风化与卸荷的本质特征,无论岩体风化还是卸荷,其纵波速度都存在级差;但风化岩体回弹值存在级差,卸荷岩体回弹值不存在级差。利用玻尔兹曼函数数学模型,通过拟合计算分析纵波速度和回弹值,对岩体风化与卸荷进行数值判别,并进一步定量划分风化带与卸荷带,确定带的界线。实例应用结果表明:该数值判别方法操作简易,能科学客观地判别风化与卸荷,精确确定风化带与卸荷带的界线,定量解决工程地质问题。
中图分类号:
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