莱芜铁矿区岩溶塌陷危险性评价及生态治理对策
收稿日期: 2008-06-01
修回日期: 2008-10-01
网络出版日期: 2008-11-25
基金资助
山东省自然科学基金项目(Y2004E03).
Risk Assessment and Ecological Rehabilitation Strategies of Karst Collapse in Laiwu Iron Mining Areas
Received date: 2008-06-01
Revised date: 2008-10-01
Online published: 2008-11-25
矿产资源开采带来的塌陷及其环境地质灾害已给矿区可持续发展带来严重影响，加快塌陷治理，搞好环境 修复是实现自然经济和谐发展的重要前提。在对莱芜铁矿区岩溶塌陷调查的基础上，探讨了铁矿区岩溶塌陷的影 响因素和形成机理，选取第四系厚度、第四系松散岩类孔隙水含水层厚度及其与岩溶水的水力联系、灰岩顶界面岩 溶发育程度、“天窗”内塌陷坑密度5 个指标对岩溶塌陷危险性进行了定性及半定量评价；根据评价依据将研究区 内不同天窗进行危险性划分；并针对评估结果，提出了相应的治理方案。本文的研究结果可以为区域生态环境修复 规划的编制，实现区域可持续发展提供科学的依据。同时本文提出的评估方法在类似矿山地质灾害危险性评估及 治理中具有参考和借鉴价值。
王煜琴 . 莱芜铁矿区岩溶塌陷危险性评价及生态治理对策[J]. 地理科学进展, 2008 , 27(6) : 70 -75 . DOI: 10.11820/dlkxjz.2008.06.010
Collapse and the corresponding environmental geologic hazards because of mining activities have exerted serious impact on sustainable development of the mining area. The rapid control of the collapse and rehabilitation of the eco-environment are a very important prerequisite to the harmonious development of economy and environment. This paper analyzed the influencing factors and development mechanism for karst collapse of iron mining areas in Laiwu city based on the in situ investigations. Five indexes were selected to assess the hazard of the karst collapse, then the risk degree of the study area was assessed. Finally, the strategies based on the research results were put forward. The results of this research provide scientific basis for planning regional ecological restoration and sustainable development. And the assessment indexes and the method proposed in this paper serve as valuable reference for similar researches.
Key words： ecological rehabilitation; karst collapse; Laiwu city; risk
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