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Title: Solving problems of ice-blocked drainage
Authors: Carey, Kevin L.
Keywords: Drainage
Ice prevention
Ice control
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Cold regions technical digest ; no. 84-2.
Description: Technical Digest
From the Introduction: Once the processes that lead to ice-blocked drainage facilities are understood (Ice-Blocked Drainage: Problems and Processes, Cold Regions Technical Digest No. 83-2), it is possible to work out intelligent solutions to these problems. Many solutions have been developed by local maintenance forces in their own areas. Probably some of these solutions are not familiar to people at the Cold Regions Research and Engineering Laboratory. On the other hand, some of the solutions described in this digest article may not be familiar to many maintenance personnel. The article also contains some new ideas about familiar solutions, all based on CRREL's experiences in the world's cold regions with a wide variety of engineering works and many types of winter conditions. Solutions to problems of ice-blocked drainage fall into two categories: ice control and ice prevention. Actually a third category also exists—the physical removal of ice after blockage has taken place. But this approach, even though it is often used, is usually not very satisfactory. It is more a case of reacting to problems than of solving them. It is not possible to entirely prevent the formation of ice in very many situations. Usually it takes changes in the design of drainage facilities to prevent ice formation, but maintenance forces have to work with designs as they exist. So mainly attention will be focused on ways of controlling ice buildup as part of regular maintenance operations. These techniques may allow ice to form, but will slow down its formation or will maintain an unfrozen opening so that drainage flow can always pass through.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Technical Digest

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