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  • Users: mrwgeo
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  1. mrwgeo

    burn dump ash

    Does anyone have reference sources, or personnal experience, with mechanical properties of burn dump ash? We need to do stability analyses to determine an appropriate slope angle for a soil cover on an existing mound, but we are not allowed to do any subsurface exploration and will need to use...
  2. mrwgeo

    Geotech data for trenchless construction

    I am preparing a proposal to provide a geotech study for design & construction of a 30" sewer force main. Pipe material has not been selected. Channel crossings (to 25 ft deep) will be construced using trenchless methods. Soils are unconsolidated alluvial clay and sand beds. Typically...
  3. mrwgeo

    AWWA seismic response spectrum

    AWWA standards for water tank design (e.g. D-100-96) state that for design of tanks (paraphrase) "in an active fault zone capable of generating magnitude 7.0 or greater event, consideration should be given to developing a seismic response spectrum." The California Geological Survery...

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