Scientific Journal of Earth Science June 2013, Volume 3, Issue 2, PP.49-58
A Discussion of the Geological Characteristics and the Typical Disastersin Karst Areas, Southwest China Zhengjiao Qin1,2# , Daoxian Yuan1,2,3, Guiqiang Huang4,Yu Wang5 1. Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin Guangxi 541004, China 2. Laboratory of Karst Dynamics, Ministry of Land and Resources, Guilin Guangxi 541004, China 3. International Research Center on Karst (IRCK) under the Auspices of UNESCO, Guilin Guangxi 541004, China 4. General Academy of Geological Survey of Guangxi, Nanning Guangxi 530023, China 5. Yunnan Geo-environment Institute, Kunming Yunnan 650216, China #
Email: qinzhj-2002@163.com
Abstract As the implementation of the western Development Strategy, economic and engineering construction of west China have been greatly improved, but simultaneously series of engineering and environmental geological problems and disasters have arised, especially in the karst rock mountain areas. After multiple on-the-spot investigations, the team of the project “A Research on the Major Environmental Geological Problems and Their Countermeasure in the Southwest Karst Area” has found that the major problems include: (1) karst collapse due to the change of ground water dynamic and mined deformation, (2) karst rockslide triggered by arised by engineering construction, and (3) seepage and contamination caused by engineering construction and mining. The main reasons why these problems arised are lack of understanding the specificity and inherent vulnerability of karst environment; lack of investigation and monitoring before engineering construction, and inadequate processing of the waste in mining. Keywords: Karst Area; Groundwater Dynamics; Geological Environment; Aquifer; Cause of the Disaster
西南岩溶地质环境特点及典型灾害问题探讨 覃政教 1,2,袁道先 1,2,3,黄桂强 4,王宇 5 1.中国地质科学院岩溶地质研究所,广西 桂林 541004 2.国土资源部岩溶动力学重点实验室,广西 桂林 541004 3.联合国教科文组织国际岩溶研究中心,广西 桂林 541004 4.广西地质调查研究总院,广西 南宁 530023 5.云南省环境地质监测院,云南 昆明 650216 摘
要:西部大开发战略的实施,西部地区经济建设、工程建设取得重大发展,伴随着也产生了一系列工程地质和环境
地质问题和灾害,特别是广泛分布的岩溶石山地区。“西南岩溶石山地区重大环境地质问题及对策研究”项目组多次实地 考察发现,西南岩溶石山地区主要的地质环境问题包括:(1)改变地下水动力条件、采空引起的岩溶塌陷;(2)工程建设引 起的岩溶崩塌;(3)矿山开采、工程建设过程中引起的渗漏和污染问题。而主要原因是在经济建设和工程建设过程中对岩 溶环境的特殊性、固有脆弱性缺乏了解;工程建设前监测、调查不够;矿山开采过程中对污染物处理不到位等。 关键词:岩溶地区;地下水动力;地质环境;含水层;灾害成因 - 49 http://www.j-es.org/