护衬 meaning in English
basque
Examples
- The geological conditions are very complicated in hejiazhai tunnel which is located in guizhou shuibo railway , this tunnel is named " mashed tunnel " with the most difficult geological conditions such as the high dense gas and developed karst and gushing water assembled together , the geological hazards like the gushing water and sand , the collapse of tunnel , surface subsidence and slide , cracking of tunnel lining were often happened during construction period
摘要贵州水柏铁路何家寨隧道，工程地质条件极其复杂，集“高瓦斯、强岩溶、大涌水”为一体，施工期间曾发生多次涌水涌砂、洞内坍方、地表塌陷与滑坡、支护衬砌开裂变形等地质灾害，堪称水柏铁路施工难度最大的“烂洞子” 。