Fine-grained concrete usage for borehole piles manufacture in case of geotechnical emergency

Using the example of an unique case of emergency elimination in a deformed due to a landslide dam section, which was the base of the main urban pressure water supply pipelines, it is shown that the use of drilling piles made with electric discharge technology (EDT) prevented the soil embankment further destruction and ensured the pressure water pipe system safe operation. The technological cycle of manufacturing EDT drill-injection piles using discharge-pulse pile technology is presented. It is noted that the injected fine-grained concrete which is produced on the construction site just before it is injected into the well must be homogeneous and not delaminate during injection.