摘要
本文基于上海市流砂的特征及分布,构建了流砂风险评价指标体系,进行流砂灾害的风险评价、分区及管理区划。首先,根据②3、⑤2和⑦层粉砂性土的空间分布特征进行了危险性分析及分区;其次,基于行政区划、综合考虑社会经济统计类指标完成了易损性分析及分区,在此基础上对上海流砂地质风险做了综合评价和分区;最后,结合上海市"十二五"规划中关于经济和城市重点项目建设内容,提出了"十二五"期间流砂地质风险防治管理区划方案。其成果将为上海市地下工程(含基坑工程、地铁隧道、地下商城等)的勘察、设计、施工和运行中可能的流砂灾害的监测、预报及防治等提供指导及地质依据,并为管理部门的监督和管理提供决策参考。
Based on the characteristics and distribution of quicksand in Shanghai, this paper presented an index system for quicksand risk assessment, aiming of risk assessment, zoning and management division of quicksand. First, according to the spatial distribution characteristics of ②3, ⑤2 and ⑦ silty-sandy soil layers, the danger anal- ysis and zoning of quicksand are carried out. Second, based on administrative division and comprehensive consider- ation of socio-economic statistical indicators, the vulnerability analysis and zoning of quicksand are made. And on that basis, the risk comprehensive evaluation and division are conducted. Finally, risk control and management zon- ing of quicksand during the 12th five-year planning are presented by combining the content on economic and urban key projects of outline of the 12th five-year planning for economic and social development of Shanghai. The results of this paper can provide guidance and geological basis for possible quicksand＇s monitoring, prediction and preventionduring underground construction （excavation, subway tunnels, underground supermarket, etc. ）, including investi- gation, design, construction, and provide decision-making reference for management departments.
出处
《工程地质学报》
CSCD
北大核心
2013年第6期950-958,共9页
Journal of Engineering Geology
基金
上海市国土局项目(FDZ2008034)资助
关键词
流砂
风险评价
分区
管理区划
Quicksand, Risk assessment, Zoning, Management zoning
