FOUNDATIONS.
Pile driving, common system 262
Mitchell’s screw pile 266
Potts’s atmospheric system 266
Coffer-dam 267
Caisson 269
CHAPTER XII.
Handbook of Railroad Construction; For the use of American engineers. Containing the necessary rules, tables, and formulæ for the location, construction, equipment, and management of railroads, as built in the United States. · 第 12 / 19 章