城市地质
城市地質
성시지질
URBAN GEOLOGY
2013年
3期
50-57
,共8页
雷晓东%邵景力%李娟%姚春梅%杨军
雷曉東%邵景力%李娟%姚春梅%楊軍
뢰효동%소경력%리연%요춘매%양군
岩溶塌陷%风险%地下水%临沂
巖溶塌陷%風險%地下水%臨沂
암용탑함%풍험%지하수%림기
Karst collapse%Risk%Groundwater%Linyi
岩溶塌陷是山东省临沂市区最重要的地质灾害类型,一旦发生,会带来较大的经济和财产损失,因此对岩溶塌陷的风险评价十分必要。风险评价包括现状评价和预测评价,主要分3个步骤来完成:危险性评价、易损性评价和期望损失评价。利用地下水流模型确定调采方案下的相关评价因子,预测了岩溶塌陷的风险性。通过比较发现,经过地下水调采后,原岩溶塌陷高风险区范围大为缩小。地下水流数值模型和风险评价方法结合,可以确定合理的岩溶水规划开采方案,对于指导和防治岩溶塌陷具有重要意义。
巖溶塌陷是山東省臨沂市區最重要的地質災害類型,一旦髮生,會帶來較大的經濟和財產損失,因此對巖溶塌陷的風險評價十分必要。風險評價包括現狀評價和預測評價,主要分3箇步驟來完成:危險性評價、易損性評價和期望損失評價。利用地下水流模型確定調採方案下的相關評價因子,預測瞭巖溶塌陷的風險性。通過比較髮現,經過地下水調採後,原巖溶塌陷高風險區範圍大為縮小。地下水流數值模型和風險評價方法結閤,可以確定閤理的巖溶水規劃開採方案,對于指導和防治巖溶塌陷具有重要意義。
암용탑함시산동성림기시구최중요적지질재해류형,일단발생,회대래교대적경제화재산손실,인차대암용탑함적풍험평개십분필요。풍험평개포괄현상평개화예측평개,주요분3개보취래완성:위험성평개、역손성평개화기망손실평개。이용지하수류모형학정조채방안하적상관평개인자,예측료암용탑함적풍험성。통과비교발현,경과지하수조채후,원암용탑함고풍험구범위대위축소。지하수류수치모형화풍험평개방법결합,가이학정합리적암용수규화개채방안,대우지도화방치암용탑함구유중요의의。
The karst collapse is the most important types of geological disasters in Linyi city of Shandong province. Once the occurrence of karst collapses, it may lead to greater economic and property losses, so it should be very necessary for risk control and prediction of karst collapse. Risk assessment includes current situation evaluation and forecast evaluation, mainly consists of three steps: hazard assessment, vulnerability assessment and expected loss evaluation. This paper adopts the fuzzy comprehensive evaluation based on AHP method in risk assessment firstly, then vulnerability assessment and expected loss evaluation is given, and a comprehensive assessment classification map of present situation is developed. The risk of karst collapse is predicted using the groundwater flow model with witch the relevant evaluation factor is determined by the adjusting groundwater pumping scheme. By comparison, the high risk area of karst collapse is greatly reduced through adjusting pumping scheme. It has important significance to prevent occurrence of karst collapse by the reasonable karst water pumping scheme with the combination of numerical model of groundwater flow and risk assessment methods.