Tunneling
['tʌnəlɪŋ]
Definition
(p. pr. & vb. n.) of Tunnel
Editor: Nancy
Examples
- Tunneling under rivers presents many more difficulties than driving through the hardest rock. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- His experiments made him doubtful of the possibility of running such railroads, unless a great amount of very expensive tunneling and grading were first done. Rupert S. Holland. Historic Inventions.
- It is believed that this was the first time that soft material met with in tunneling under a river has been solidified by means of fire. Various. The Wonder Book of Knowledge.
- An important engineering invention for tunneling through silt or soft soil is the so-called shield. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- In tunneling under the river, nearly every conceivable combination of rocks and soils were met, but for the most part the material was silt. Various. The Wonder Book of Knowledge.
Editor: Nancy