福建海湾地区灾害地质特征与工程风险控制

福建省海湾地区地质环境比较复杂,孕育着多种灾害地质因素,使港湾工程活动存在地质灾害的风险.通过对港湾工程及其地质灾害风险的分析,探讨了如何进行港湾工程地质灾害的风险控制,认为港湾工程地质灾害风险控制内容包括选址阶段风险的回避、设计施工阶段风险的处理及运行阶段风险的监控.地质灾害风险评估是地质灾害风险控制的首要任务,设计与施工阶段的风险评估应立足于评价灾害地质因素的致灾可能性以及工程应对措施的有效性,还应根据施工中出现的前阶段评估中未发现或未予重视的重要地质情况,及时对工程方案进行修正.

Characteristics of hazardous geology and geological disaster risk control of engineering constructions in bay areas of Fujian

The geological environments in the bay areas of Fujian are comparatively complicated. There conceives numerous hazardous geology factors that make the bay engineering activity take a risk of geological disasters. By analyzing bay engineering and its possible geological disaster risk, it is discussed that how to control the geological disaster risk of bay engineering constructions. It is regarded that its content includes risk evasion in stage of site choosing, risk treatment in stage of designing and construction, and risk monitoring in stage of operation. The risk assessment of geological disaster is the first task of risk controlling of geological disaster. Risk assessment in stage of designing and construction must be established in appraising whether hazard geology factors become disasters and the engineering measures be efficient. The engineering projects must also be modified based on the important geological problems appearing in constructing stage but failing to be found in preceding assessment.