Ice and Debris Passage for Innovative Lock Designs

Physical and numerical models were used to assess ice and debris passage at navigation locks focusing on key factors such as the configuration of the upper approach, the design of the lock filling and emptying system and the location and design of culvert intakes and outlets. Unconventional ice pass...

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Bibliographic Details
Main Author: Tuthill, Andrew M.
Other Authors: ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB
Format: Text
Language:English
Published: 2003
Subjects:
Snow
Ice and Permafrost
Operations Research
Civil Engineering
*NAVIGATION
*ICE
*LOCKS(WATERWAYS)
MATHEMATICAL MODELS
THICKNESS
PHYSICAL PROPERTIES
ICE FORMATION
FLOW RATE
MODEL TESTS
RIVERS
ACCUMULATION
ENGINEERING DRAWINGS
DAMS
*ICE PASSAGE
BRASH ICE
CULVERT INTAKES
LOCK CULVERTS
LOCK FILLING AND EMPTYING SYSTEM
NAVIGATION LOCK
NUMERICAL ICE HYDRAULIC MODEL
PHYSICAL MODEL
PLASTIC ICE
UPPER LOCK APPROACH
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA409726
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA409726
Description
Summary:Physical and numerical models were used to assess ice and debris passage at navigation locks focusing on key factors such as the configuration of the upper approach, the design of the lock filling and emptying system and the location and design of culvert intakes and outlets. Unconventional ice passage techniques such as manifolds in the miter gates were also evaluated. Physical model results were compared to field observations and a parallel series of tests using the DynaRICE ice-hydraulic numerical model. Ice processes modeled included upper approach ice accumulation during lock filling, drawing ice into the lock chamber and flushing ice out of the lock. Initial ice thickness was found to be the most important parameter affecting ice passage. Physical and numerical model results compared reasonably well proving DynaRICE to be a useful tool for assessing ice passage for new lock designs. The original document contains color images.

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