绍兴中心城区工程地质特征及场地工程建设适宜性评价

Engineering geological characteristics and suitability evaluation of site engineering construction in the central urban area of Shaoxing

根据时代、成因类型、物理力学性质,绍兴中心城区岩土层可划分为10个工程地质层。以地貌、岩土层性质与结构组合类型及是否存在第二硬土层、砂砾土或基岩等桩基持力层为依据,划分出1个低山丘陵区基岩岩组、1个山麓沟谷区低压缩松散岩组、1个平原区高压缩松散岩组及其4个亚组。采用"点面结合、由点到面"的定量评价方法,开展建筑地基(场地工程建设)适宜性评价,划分出场地工程建设适宜区、较适宜区和适宜性差区。

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 unconsolidated rock group of plain area and its four subgroups have been marked off.By means of quantitative evaluation method,detailed investigation has been conducted on the suitability evaluation of building foundation（site engineering construction）.Finally,the suitable areas,relatively suitable areas and poorly suitable areas have been differentiated.