Engineering geological assessment of gas pipeline routes at site of failure of Kapuni pipeline, north Taranaki

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Riddolls, B.W. 1977 Engineering geological assessment of gas pipeline routes at site of failure of Kapuni pipeline, north Taranaki. Lower Hutt: New Zealand Geological Survey. New Zealand Geological Survey report EG 289 7 p.

Abstract: The recent failure of the Kapuni gas pipeline is attributable to minor movement of the pre-existing landslide area. Movement is likely to continue to effect the gas pipelines installed there unless they can be designed in such a way as to accommodate the movement, or the slope is stabilised. To achieve the latter, a detailed investigation of subsurface conditions would be necessary, as a prerequisite to the selections and design of remedial measures, the most effective of which is likely to be drainage. An alternative route which bypasses the existing unstable areas appears to be a more stable alternative. (auth)