Project Background Gantry cranes unloading a container The "supply chain" and how our port facilities ship in Charleston

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Project Background Gantry Cranes Unloading A Container The Supply Chain And How Our Port Facilities Ship In Charleston 1 (42.49 KiB) Viewed 22 times

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Project Background Gantry cranes unloading a container The "supply chain" and how our port facilities ship in Charleston, SC are not able to efficiently move good is big news now. It underscores the nation's reliance on infrastructure and our neglect in investment. As part of the new infrastructure bill passed by ME Congress, a new container loading/unloading facility is being designed to support an expansion at one of our port facilities. The plan and profile given at the end of the assignment show the proposed construction. The project will require grading the existing ground surface to El. O ft, constructing two earth embankments (compacted soil) to support two new gantry cranes (see the example photo
from the Port of Charleston, SC) that will be used to load/unload containers from rail cars (see attached profile). They are able to lift large loads easily and efficiently. The gantry Cranes will move across the long axis of the embankments on fixed rails similar to a railroad car (see photo at right). The rails for the gantry Cranes are basically resting on top of strip footings bearing on the embankment fil. Differential settlement between wheel sets as shown in the photo is recommended to be 12 mm maximum. Soil from a borrow area (a location where the soil Kones, Inc. www.onecranes to be used for fill is obtained) for the embankment Segy bogie 3839752_1_low fill soil has not been characterized. The borrow area is shown in the Google Earth photo at right and is an unused 10-acre site on the port Borrow area property. Soil excavated from the borrow area is taken by truck to the embankments, then dumped, spread into a lift, and compacted. Question 1. This question can probably be best answered using a table like the example shown on the next page. (a) Clearly identify two "geotechnical issues" for the proposed construction shown on the attached plan and profile (there are more than two issues). These might be best determined by assessing the given subsurface conditions, thinking through the construction sequence, considering the load applied, and its geometry. As a general rule, if you do not understand an issue, ask questions! (b) Determine what geotechnical analyses are needed to address each issue. "Analyses" in this context could be as simple as computing water contents or as complicated as computing settlement. (c) What geotechnical input parameters are required in order to conduct the analyses in (b)? (d) Determine what laboratory tests are required to provide the necessary input parameters needed to conduct the analyses in (b). Go to your lecture and lab notes to see what parameters are needed for each analysis. In some instances, lab tests may not be required.
Proposed Construction Container rail cars loaded/unloaded by cranes Gantry crane Gantry crane Earth fill embankment to be constructed Containers on rall cars 1H:1V slope 1H:1V slope Earth fill embankment to be constructed EIO Profile after Construction t-bung "Best guess" existing soil profile Existing ground Excavate native soll to El. O surface /before building embankments IZZIVI Boring-2 0 El-2 -5 CL-ML Soft -10 - 15 Elevation (ft) SM Loose-Medium -20 -25 CL Stiff -30 SP Dense -35 Legend for labeling sampling locations Undisturbed sample Disturbed sample