The Architect & engineer of California and the Pacific Coast (1905)
San Francisco, Calif. : Architect and Engineer Co · leaf 168
as damaged, requiring removal ofmuch backfilling to effect proper repairs. After the occurrence just cited.the writer had the cover reinforced by Clinton wire cloth, and no furthertrouble was experienced. This reinforced cover was also used on a viaductroof which was built after the cut and cover… … Where excavation Eor subways below track level was excessiviFigure 2), the contractors were nol required to fill back solidly againstthe rock, bul were permitted to build 12-inch backing walls of concreteand to backfill behind the latter. They came to the conclusion that muchtime would be saved by…
Architecture · Building
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