Jinan is a famous city of history and culture

it is also the capital of Shandong province. It is faced serious environmental geotechnical problems day by day along with the quickening of urbanization course. The foundation soils in the typical district of Jinan city were taken as study object. Physical and mechanical effect experiment on chemical action of water on soil were done

undisturbed soil specimens from the polluted erosive foundation were taken

physical and mechanical property experiments were done. The result indicates that there is remarkable change for the physical and mechanical property after foundation soils were polluted. Compared with ordinary foundation soil

the polluted erosive foundation soil has smaller liquid limit

smaller plastic limit

smaller compressibility modulus; and larger liquidity index

larger compressibility factor.