交通运输工程

• 隧道

  It is high cost because of tunnels or high bridge, Long Bridge; low grade highway is less used.

  因螺旋展线需修建隧道或高桥、长桥,造价很高,在低等级公路中较少采用。

土木建筑工程

• 巷道

  With the rapid development of the national economy and national defenses construction, underground exploitation depth trends much more deep levels. Kilometer or even several kilometers coal mines and tunnels can be found everywhere.

  随着国民经济建设与国防建设的不断发展,地下开发不断走向深部,上千米乃至数千米深的矿井、巷道比比皆是。

能源科学技术

• 巷道

  Concrete was used to replace the actual sandstone in mine tunnels. The actually heat and mass transfer process was simulated by the experimental system.

  按照相似理论搭建实验台,用与煤矿围岩热工性能相似的混凝土试件代替真实巷道,模拟真实巷道的传热过程。

农业科学

• 隧道

地球科学

• 隧道

• 隧洞