Abstract: According to geological time,origin type,physical and mechanical property,the rock and soil layer of Shaoxing central urban area has been divided into 10 engineering geological layers.Based on landform,character and structure assembled type of rock and soil layer,whether being pile foundation bearing stratum such as second hard soil,gravel soil or bedrock etc,bedrock group of low mountains and hills area,low compressibility unconsolidated rock group of piedmont gully area,high compressibility un...