Ӫ��—�ɱ��������д�����������ֲ���ͨ���Էֲ�����������ij����������dz�����Ĺ淶������������, ȡ55 mm��Ϊ�ػ����ӳ�������ֵ, ����Ϲ���Σ����ָ�꽫�о�������Ϊ��— ����������������, ��—����������һ����, ��—���������Խϲ���3�����������Т�����Ҫ�ֲ���Ӫ�����������������ϲ�, ������Ҫ�ֲ���Ӫ���������ϲ����ɱ���������������ϲ�֮��ĵ���, ������Ҫ��Ӫ�������������񡢢򡢢������ֱ�ռ���������������10.6%��86.2%��3.2%��

There is a large area of soft soil in distribution in Yingkou-Liaobin Economic Area. The authors divided the studied area into the grade ��-engineering suitability good area, grade ��-engineering suitability general area and grade ��-engineering suitability less area, according to the bearing capacity calculation of soft soil layer and settlement calculation of normative method for shallow foundation, with 55 mm as the boundary of foundationps additional settlement and combining with indexes of engineering risk. The grade �� zone mainly distributes in the west of Yingkou City and the south of salt region, grade ��mainly distributes in southwestern Yingkou City and the areas except the south of Liaobinxiang and salt areas and the grade �� mainly distributes in eastern Yingkou City. The areas of the grates ��, ��, �� are accounted 10.6% , 86.2% and 3.2% of total area of soft soil in this Economic Area, respectively.