Geological and geotechnical investigation + soil test in laboratory + at site Like density of soil water % proctor identification plasticity of soil. Type and deep of foundation And many operation in this field ... Description of soil and lithology mud test viscosity ..ect mud logging ......... . ............ ......... .......... ........... ........ ...... ....... .... . ..... ... ... ... .... .... .... .... .... .... ..... ..... ..... .... ..... .... ..... ..... .... ...... .... ... . . ..... .. .. .... ....... .... ... ... .. ... ... .... . . . .. . .. .. . . . . . . . . . . .. . . . . . . . . . .. .. .. .. . . . . . . . . . . . .. .. . . . . . . . . . .. . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . . . . . . .

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