Разминовка (ж/д)

[timtheint]

Есть идеи?
Есть, конечно, Monkey heading, но насколько употребительно... Или by-pass

[wander_]

monkey heading

A narrow and low passage driven in the coal where miners take refuge while
coal is being blasted. Chiefly in mines where seams pitch sharply.

Наверное не то все-таки

[wander_]

кстати взято с http://www.maden.hacettepe.edu.tr/dmmrt/index.html
про 2
bypass

a. A short passage used to get by or around a place it is not advisable to
cross; e.g., a mine shaft. Also spelled byepass.

[DpoH]

mine clearing. шутка)