Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910

Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910
The Bergen Hill Tunnels. Paper No. 1154

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Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 by F. Lavis

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1910

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Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910
The Bergen Hill Tunnels. Paper No. 1154

By

0
(0 Reviews)

Book Excerpt

Pounds | | | | Depth | Cubic | of | Advance | | | Drilled | Yards | Dynamite | | +---------+------------+-----------+------------+---------+ | Heading | 190 to 220 | 35 to 42 | 134 to 196 | 6½ to 8 | +---------+------------+-----------+------------+---------+ | | | | | | | Bench | 145 " 190 | 90 to 110 | 118 " 167 | 6½ " 8 | +---------+------------+-----------+------------+---------+

+-----+-------------------------+----------------------------------+ | | Per Cubic Yard | Per linear Foot of Tunnel | | +------------+------------+-------+-----------+--------------+ | | Linear | Pounds | Cubic | No. of | Pounds | | | Feet | of | Yards | Feet | of | | | Drilled | Dynamite | | Drilled | Dynamite | +-----+------------+------------+-------+-----------+--------------+ | Hd. | 5.4 to 6.0 | 3.9 to 5.0 | 5.3 | 28 to 32 | 20.7 to 26.5 | +-----+------------+------------+-------+-----------+--------------+ | B. | 1.6 " 1.9 | 1.3 " 1.8 | 13.7 | 22 " 36 | 17.8 " 24.7 | +-----+------------+------------+--

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