Marine clayey soils are widely deposited along the Lianyungang section of the LianXu freeway. The sedimentary thickness varies much along the freeway. Settlement and stability are often encountered for the embankment on such ground. In this project, the settlement monitoring was carried out during the construction. Based on the data collected in-situ, the effects of the thickness of crust layer and clayey soil layers as well as DJM pile distance on the settlement are analyzed. The relationship between the construction rate and settlement rate is also discussed. The critical fill height is determined and the tendency of settlement is predicted.

    The achievements of this project provide valuable references to the other relative projects. In March of 2000, national famous expert commission in geotechnical engineering gave high appraisal for the research results of this project.