timbering

timbering After a volume or blasted muck has been removed, the process of supporting the drift with timber begins. . . . It consists of erecting large pieces of timber in the drift for the purpose of support. JH-25-11-69 [-](in the process of outting a raise)[-] Not used Not used Withdrawn

Bibliographic Details
Format: Manuscript
Language:English
Published: 1969
Subjects:
Online Access:http://collections.mun.ca/cdm/ref/collection/elrcdne/id/74738
Description
Summary:timbering After a volume or blasted muck has been removed, the process of supporting the drift with timber begins. . . . It consists of erecting large pieces of timber in the drift for the purpose of support. JH-25-11-69 [-](in the process of outting a raise)[-] Not used Not used Withdrawn