Missouri S&T GEO ENG 342 - Panama Canal Gaillard Cut (Culebra Cut) (16 pages)

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Panama Canal Gaillard Cut (Culebra Cut)



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Panama Canal Gaillard Cut (Culebra Cut)

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Pages:
16
School:
Missouri University of Science and Technology
Course:
Geo Eng 342 - Military Geology
Military Geology Documents

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PANAMA CANAL GAILLARD CUT CULEBRA CUT by Maung Myat AGENDA BRIEF INTRODUCTION TO PANAMA CANAL GAILLARD CUT PANAMA The Canal Zone Geologic profile of the Canal Atlantic Ocean is to the left Culebra Formation 4 Dark well laminated beds of soft shales sandy limestone and calcareous sandstone Cucaracha Formation 5 Very fine grained clayey rock GAILLARD CUT CULEBRA Culebra Cut was the special wonder of the canal Here men and machines labored to conquer the 8 75 mile stretch extending through the Continental Divide from Gamboa on the Chagres River at the north to Pedro Miguel on the south The lowest point in the saddle between Gold Hill on the east and Contractors Hill on the west was at elevation 333 5 feet above sea level Three major slide areas 1 East Culebra 2 West Culebra and 3 Cucaracha Four different types of slides 1 Gravity 2 Structural 3 Deformation and 4 Combination Worst of the slides occurred in 1912 in front of the town of Culebra West bank of the cut 75 acres broke away 10 000 000 cy and 7 000 000 cy from the East bank Took 1 3 of a year dig out View looking south toward the eastern bank of Gaillard Cut opposite Contractors Hill showing the terraced bank as it was in 1890 This was the condition the French left it in Construction did not start back up until 1905 Culebra cut in 1904 prior to start of American construction activities Construction activities within this section started back up in 1905 View of a small slide in the west bank of the cut below Culebra Hill October 16 1909 A major slide in this area occurred in 1912 when 75 acres slid into the cut approximately 10 000 000 CY View from Contractors Hill looking north June 1912 This slide is classified as a structural break or deformation slides In these factors such as unstable geological rock formations slope steepness and height and the effects of blasting combine to form a slide At the Canal excavation removed lateral support from the high banks created in the deepest portions of Culebra Cut Unable



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