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Risk Assessment and Security for Pipelines, Tunnels, and Underground Rail and Transit Operations
book

Risk Assessment and Security for Pipelines, Tunnels, and Underground Rail and Transit Operations

by Anna M. Doro-on
June 2014
Intermediate to advanced content levelIntermediate to advanced
414 pages
14h 2m
English
CRC Press
Content preview from Risk Assessment and Security for Pipelines, Tunnels, and Underground Rail and Transit Operations
40Risk Assessment and Security
2.5.17 Calculation of Explosives
One way to calculate the total quantity of explosives recommended by Langefors
and Khilstrom (1963) is
0.07 0.4 0.004
23 4
=++
QBBB
where
B is the burden in meters
Q is the quantity of explosive in kilograms
e rst term is the explosive needed to produce the surface blast design and to
satisfy other dissipative processes. e second term is the principal term that relates
the weight of the explosive and the weight of rock. e third term, usually very
small, provides the energy for the swelling and lifting of the mass.
2.5.18 Hazards of Explosives
High explosives are capable of severely mutilating the human body. Explosives tend
to rip the body into dierent pieces like a shark wit
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Publisher Resources

ISBN: 9781466569324