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岩溶区地下水主要赋存于溶洞、管道与裂隙中,受地形地貌影响,峰丛谷地区地下水埋藏较深,一般大于50m,甚至100米。这给岩溶高峰丛谷地地下水的开发带来极大困难,也是峰丛谷地区严重缺水的主要因素之一。由于岩溶发育具有不均匀及不确定性,加之浅部岩溶还常为泥质充填,在岩溶高峰丛谷地找水打井进行地下水开发,难度极大。在岩溶高峰丛谷地的找水打井实践中,根据地形地貌、地层岩性、地质构造、天然水点、岩溶地质点的分布对储水构造位置进行推断并确定找水靶区,通过水文地质调查结果,充分结合前人资料特别是通过地球物理勘探所收集到场地内各种岩性的电性参数特征,推断出储水结构空间发育特征及富水性,有效避开储水构造中泥质填充,让找水打井工作效率、成井率得以提升。
Karst groundwater mainly occurs in karst caves, pipes and fissures. Affected by the topography, groundwater in Feng Cong Valley is buried deeper, generally larger than 50m or even 100m. This has brought great difficulties to the development of groundwater in the karst peak-crag valley and is also one of the major factors in the severe water shortage in the Feng Cong Valley. Due to the uneven and uncertain development of karst, and shallow karst is often filled with muddy, karst clumps in the valley to find water wells for groundwater development, extremely difficult. In the practice of water logging and well drilling in the karst peak clump valley, the water storage structure location is deduced based on the distribution of topography, stratum lithology, geological structure, natural water spot and karst geological spot, and the water-seeking target area is determined. Through the hydrogeology According to the survey results, the characteristics of the spatial distribution of water storage structure and water-richness are deduced based on the characteristics of electrical parameters collected by predecessors, especially those collected from geophysical exploration. Fill, let water to find wells work efficiency, well rate can be improved.