00000nam 2200000za 4500 9.862906 CaOODSP 20241203113644 cr ||||||||||| 181009s1979 onc #ob f000 0 eng d 0-662-10757-8 CaOODSP eng eng fre n-cn--- En36-503/114E-PDF En36-503/114 Van Everdingen, R. O. Potential interactions between pipelines and terrain in a northern environment [electronic resource] / R.O. van Everdingen. Ottawa : Environment Canada, National Hydrology Research Institute, Inland Waters Directorate, 1979. v, 7 p. IWD technical bulletin ; no. 114 NHRI paper ; no. 8 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "In a northern environment various interactions between pipelines and the terrain which they cross may produce adverse effects on pipeline integrity; adverse effects on the environment may also result, either directly or as a consequence of the increased maintenance or repairs required. In any particular situation the interactions and the severity of their effects will depend on the pipeline construction mode (e.g. buried or above-ground) and operation mode (e.g. chilled or warm); on the distribution of frozen and nonfrozen ground; and on the relative sensitivity of the ground during freezing and/or thawing. Most of the interactions are related to the occurrence and movement of surface water and subsurface water or to the occurrence or formation of ice. A tabulation of possible interactions and effects is presented as a guide to the potential problems that may occur during the construction and operation, as well as after abandonment, of a pipeline. When recognized early enough, development of such problems can often be avoided by rerouting or prevented by special design measures. Early recognition can in most cases only be achieved through special studies on groundwater levels, flow rates and temperatures; on the occurrence of icings; and on the distribution and character of ground ice"--Abstract, p. v. Includes abstract in French. gccst Pipelines gccst Groundwater gccst Environmental management Canada. Environment Canada. National Hydrology Research Institute (Canada) Canada. Inland Waters Directorate. Technical bulletin (Canada. Inland Waters Directorate) no. 114. (CaOODSP)9.861123 PDF 1.29 MB https://publications.gc.ca/collections/collection_2018/eccc/en36-503/En36-503-114-eng.pdf