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[quote user="Murphy Siding"]Back up. Reread what you wrote. You are saying that based on the information about landslides causing derailments that you have now determined that it was liquifaction. [/quote] Euclid post of June 23, 2018 in "the BNSF derailment at Doon, Iowa" thread: It is much more likely that the high water saturated the fill, and then the vibratory action of the passing train increased the saturation to the point where roadbed lost its ability to support the train. That is a description of liquifaction. [quote user="Murphy Siding"]Being probably the only one on the forum that has been to Doon, Iowa I can confidently tell you that landslides had nothing to do with this derailment.[/quote] So what was the cause? Liquifaction doesn't necessarily lead to landslides. Think of trying to walk on water. Suddenly there is no footing. It hasn't to happen inside the fill it could happen in the subsoil. Regards, Volker
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