招远市道头地区蓄水构造条件分析

以招远市道头地区作为研究区。本区位于低山丘陵地区,由于受自然条件限制,普遍存在缺水现象。本次根据前期调查结果,以区内的地质、水文地质条件为基础条件,采用多种地球物理勘探方法相结合的方法,同时依靠钻探、抽水试验等技术手段,将区内的蓄水构造类型共划分了侵入-接触型蓄水构造、接触型蓄水构造和隔水型蓄水构造三类。通过对不同蓄水构造的构造类型,围岩岩性,构造与围岩相互关系,地下水流向,构造隔水性质等地质、水文地质条件的分析确定靶区,结合地球物理勘探方法对靶区进行解译,根据解译结果最终确定井位,并在确定的井位点进行钻探施工和抽水试验,对其富水性进行验证。通过以上多方法结合最终提出了在该种地区中定井方法,提高了成井的成功率,为缺水地区找水提供了理论支撑和实用方法。

Analysis of Water Storage Structure Conditions in Daotou Area of Zhaoyuan City

Take Daotou area,Zhaoyuan City as the research area. This area is located in the hilly area with low mountains. Limited by natural conditions,water shortage is common. According to the results of the previous survey,taking the geological and hydrogeological conditions as the basic conditions,adopting the method of combining various geophysical exploration methods and at the same time relying on technology,such as drilling and pumping test,classify the types of water storage structures in the area into three types: intrusion-contact water storage structure,contact water storage structure and water-isolated water storage structure. Through the analysis of geological and hydrogeological conditions about different water storage structures,such as the structural types,the lithology of surrounding rocks,the relationship between structures and surrounding rocks,the flow direction of groundwater,and the water-separating property of structures to locate the target area and combining with geophysical exploration methods to interpret the target area,the well location is finally determined according to the interpretation results. Drilling construction and pumping test are carried out at the determined well location to verify its water enrichment. Through the combination of the above methods,the well determination method in this area is finally proposed,which improves the success rate of well completion and provides theoretical support and practical method for water exploration in water-deficient areas.