Study of Ice Clogged Channel Clearing Problems.

This study develops a mathematical model for the simulation of ships transiting a river under brash ice conditions. The model predicts the growth of the ice on the St. Marys and St. Lawrence Rivers and the subsequent transit times and delays of the ships at traffic levels predicted for the year 2000...

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Bibliographic Details
Main Authors: St John,J W, Coburn,J L, Kotras,T V
Other Authors: ARCTEC INC COLUMBIA MD
Format: Text
Language:English
Published: 1981
Subjects:
Snow
Ice and Permafrost
Civil Engineering
*ICE
MATHEMATICAL MODELS
REMOVAL
GROWTH(GENERAL)
NEW YORK
TIME
WINTER
DISPOSAL
WATER TRAFFIC
CHANNELS(WATERWAYS)
MICHIGAN
CARGO SHIPS
*River ice
*Brash ice
Saint Marys River(Michigan)
Saint Lawrence River
Lawrence River
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA104671
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA104671
Description
Summary:This study develops a mathematical model for the simulation of ships transiting a river under brash ice conditions. The model predicts the growth of the ice on the St. Marys and St. Lawrence Rivers and the subsequent transit times and delays of the ships at traffic levels predicted for the year 2000. Ice removal has been incorporated in the model and various ice removal strategies and removal rates have been investigated. The results of the removal rate study are presented as well as several preliminary studies that document the evolution of the project. Brash ice removal rates are chosen for the conceptual design of removal systems for the St. Marys and St. Lawrence Rivers. Removal concepts to meet these removal rates are screened and the better concepts are developed into designs. Estimates of acquisition costs are made and operational parameters are developed to the point where operational costs could be determined. (Author)

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