1) rocky surrounding rock sub-classification
岩质围岩亚级分级
1.
The research results show:The indices of rocky surrounding rock sub-classification during construction are rock hardness degree,rock mass integrity condition and ground water condition.
考虑到目前采用的属性指标的实际情况,特采用数量化理论对施工阶段岩质围岩亚级分级进行定量评定。
5) surrounding rock classification
围岩分级
1.
Stduy on index selection of surrounding rock classification for cohesive soil tunnel;
黏质土隧道围岩分级指标的选取研究
2.
Value limits of clayey surrounding rock classification indices;
黏质土围岩分级指标的界限值确定
3.
Based on the principles of distance discriminating analysis(DDA),the distance discriminating analysis model for tunnel surrounding rock classification is established in this paper.
将距离判别分析方法应用于隧道围岩分级问题中,建立隧道围岩分级的距离判别分析模型,选用岩石等级、风化程度、岩体弹性纵波波速、岩体结构、地质构造影响程度、节理裂隙发育程度和地下水情况7项指标作为距离判别分析模型的判别因子,以工程岩体实测数据作为学习样本进行训练,建立相应判别函数对待判样本进行分级,并利用回代估计方法进行检验。
补充资料:2,2'-[亚甲基二(2,1-亚苯基氧亚甲基)]二环氧乙烷
CAS:54208-63-8
分子式:C19H20O4
中文名称:双酚二环甘油醚
2,2'-[亚甲基二(2,1-亚苯基氧亚甲基)]二环氧乙烷
英文名称:2,2'-[methylenebis(2,1-phenyleneoxymethylene)] bis-Oxirane
Methylenebis(o-phenol), 3-propylene oxide ether
2,2'-[methylenebis(2,1-phenyleneoxymethylene)]bis-oxiran
分子式:C19H20O4
中文名称:双酚二环甘油醚
2,2'-[亚甲基二(2,1-亚苯基氧亚甲基)]二环氧乙烷
英文名称:2,2'-[methylenebis(2,1-phenyleneoxymethylene)] bis-Oxirane
Methylenebis(o-phenol), 3-propylene oxide ether
2,2'-[methylenebis(2,1-phenyleneoxymethylene)]bis-oxiran
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条