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隧道围岩分级中,岩体完整程度的定量指标用岩体完整性系数K表达。某隧道有代表性地段的岩体弹性纵波速度为2600m/s,在同一地段岩体取样测定岩石的纵波速度为3000m/s。则该地段的岩体完整性系数K,为下列哪一项?(  )

发布日期:2022-07-19

隧道围岩分级中,岩体完整程度的定量指标用岩体完整性系数K表达。某隧道有代表性地段的岩体弹性纵波速度为...
A

0.70

B

0.75

C

0.80

D

0.87

试题解析

隧道围岩分级

隧道围岩分级(classification of tunnel surroun- ding rock)是1997年公布的铁道科学技术名词。

中文名
隧道围岩分级
所属学科
铁道科学技术
外文名
classification of tunnel surroun- ding rock
公布时间
1997年

岩体完整性

英文:massiveness of rock mass

中文名
岩体完整性
外文名
massiveness of rock mass

定量指标

定量指标是可以准确数量定义、精确衡量并能设定绩效目标的考核指标。在定量评价指标体系中,各指标的评价基准值是衡量该项指标是否符合生产基本要求的评价基准

中文名
定量指标
要素
指标
主要分类
绝对量指标和
制定方法
加减分法等

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此试题出现在

注册土木工程师(道路工程)

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