| 黔东北高原斜坡地区4种岩溶地下水系统模式及特点——基于地貌和蓄水构造特征 |
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| 关键词:karst water patterns of groundwater system groundwater exploitation and development northeast Guizhou slope zone |
| 基金项目:中国地质调查局国土资源大调查项目“西南典型岩溶流域水文地质环境地质调查”(编号: 1212011220950);“乌蒙山区水文地质环境地质调查”(编号: 12120113052500) |
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| The Patterns and Characteristics of Four Karst Groundwater Systems in Northeast Guizhou Slope Zone Based on the Landscape and Reservoir Structure |
| Controlled by deep valleys, karst groundwater level is very deep in most places and the groundwater is excreted along river shore in northeast Guizhou area. The groundwater mainly flows rapidly in pipeline and crack forms, and hence the exploration of groundwater resources is rather difficult; nevertheless, there are also some groundwater enrichment zones controlled by water storage structure. Based on geomorphologic characteristics and geological structure of groundwater storage, the authors summed up the karst groundwater system into four patterns, namely deep valley, syncline mountain land, monoclinic interlayer, and anticlinal aulacogen. For deep valley type, groundwater hydraulic slope is mostly rather steep, and the groundwater is mostly flows rapidly in pipeline form with low level discharge, and hence the exploration should adopt the method of pumping from underground driver outlet and skylight; in large economic benefit area, a reservoir could be built by plugging the hole. For syncline mountain land type, many karst springs and underground river outlets are usually formed in higher position with high level discharge and therefore directly diverting water is the best way. For monoclinic interlayer type, many springs are formed along lithologic boundaries, so we can pump karst springs for direct utilization and can also drill water in local area affected by the roof and bottom of the intercalated bed. For anticlinal aulacogen, a lot of dolomites are distributed near the anticline and aquifer is thick and, therefore, the aquifer has great uniform thickness; in addition, there exist a lot of non all-discharge springs in the karst groundwater system; therefore pumping and drilling seem to be the suitable ways to exploit and develop groundwater. |
| PAN Xiao-dong,LIANG Xing,TANG Jian-sheng,SU Chun-tian,MENG Xiao-jun.2015.The Patterns and Characteristics of Four Karst Groundwater Systems in Northeast Guizhou Slope Zone Based on the Landscape and Reservoir Structure[J].Acta Geoscientica Sinica,36(1):85-93. |
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