classification of tunnels meaning in English

隧道分类

In view of the natural conditions in loess area of gansu , in the light of investigation conditions of seepage of built loess and weak rock highway tunnels in this area and classification of water gushing conditions for railway tunnels , and by engineering analogism , the classification of tunnel water gushing types suited the structure design of highway tunnel waterproof and drainage , and the three methods for checking and subdividing water gushing types are presented
摘要针对甘肃黄土区的自然条件，依据该地区已建黄土及软岩公路隧道渗漏水调查情况和铁路随道涌水状态分类，运用工程类比法提出适合该地区公路隧道防排水结构设计的隧道涌水类型划分及对涌水类型校核与细分的三种方法。