TY JOUR TI Assessment of Durability Resource of Bent Underground Main Pipelines KW pipeline KW ground elevation marks KW angles of contingence KW curvature KW bend tensions KW fluidity limit KW splineapproximation KW resource of pipelines. JO Safety in Technosphere AU Kotlyarevskiy, V.. PY 2012 IS 1 PB INFRA-M Academic Publishing LLC.