METHOD FOR DRIVING PIPELINES OVER SLOPES Russian patent published in 2001 - IPC

FIELD: construction engineering; industrial driving of pipeline in landslip-prone areas. SUBSTANCE: method involves trench excavation, pipeline laying, and backfilling. Novelty is that trench bottom is excavated with incline or steps with depression to receive perforated asbestos cement drain pipe; mentioned pipe is strewed by drain material forming layer leveled in cross- sectional area; pipeline is laid on this layer and strewed with local ground. Drain areas are separated by reinforced concrete wall-diaphragms cut into bottom and side walls of trench; pipe-bends of drain pipe are made from wall-diaphragms in relief falls. EFFECT: reduced labor consumption. 1 cl, 1 dwg