多年冻土地区的供水和排水系统设计

针对高原冻土地区给排水系统的防冻及各种水处理的特殊要求,进行现场试验与工程应用。结果表明,通过对管道及构筑物采取架空保温敷设、浅埋敷设、深埋敷设、电伴热保温、中粗砂回填等方式,能较好解决不同冻土类型对给排水管道及构筑物的冻拔及融沉问题,通过采取反渗透、高效电催化氧化技术能较好解决低温、低压、低含氧量状态下的水处理效果。历时多年的实际工程运行效果证明,上述措施是可行的。

Design of Water Supply and Drainage Systems in Permafrost Regions

In view of the special requirements for anti-freezing and water treatment of the drainage system in plateau permafrost regions,field tests and engineering practices are implemented. The results show that elevated heat insulation, shallow and deep laying, electric heating insulation in coarse sand backfilling are effective to construct water supply and drainage systems and structures in freezing areas in case of frozen stubs and thaw problems. Reverse osmosis,high electro-catalytic oxidation technologies are better ways for water treatment under the condition of cold water,low pressure and low oxygen state.Many years of practical engineering applications have made the above mentioned measures feasible.