地理科学进展 ›› 2008, Vol. 27 ›› Issue (6): 70-75.doi: 10.11820/dlkxjz.2008.06.010

• 地表过程 • 上一篇    下一篇

莱芜铁矿区岩溶塌陷危险性评价及生态治理对策

王煜琴1   

  1. 1. 中国矿业大学(北京)土地复垦与生态重建研究所, 北京100083;
    2. 山东旅游职业学院,济南250200
  • 收稿日期:2008-06-01 修回日期:2008-10-01 出版日期:2008-11-25 发布日期:2008-11-25
  • 作者简介:王煜琴,副教授,在读博士.研究方向:土地复垦与生态重建.E-mail:wyq666999@163.com
  • 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

WANG Yuqin1, 2   

  1. 1. Institute of Land Reclamation &|Ecological Reconstruction, China University of Mining and Technology, Beijing 100083, China;
    2. Shandong College of Tourism and Hospitality, Jinan 250200, China
  • Received:2008-06-01 Revised:2008-10-01 Online:2008-11-25 Published:2008-11-25

摘要:

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。

关键词: 莱芜市, 生态治理, 危险性, 岩溶塌陷

Abstract:

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