摘要
在新疆戈壁地区年降雨量少,水分蒸发量大,地表长期处于干燥状态,易形成干燥薄层干质第四系堆积。物探大功率激电勘探需要较高电流,在干燥的地表处埋设电极接地电阻往往较大,给供电造成较大困难。为有效解决此类问题,实现大功率激电勘探的可行性,同时兼顾提高生产效率,在参考借鉴前人研究成果以及生产经验的基础上,总结并付诸应用了改善干燥薄层松散地表地区接地电阻的方法技术,即采用湿土掩埋多孔片状电极。该方法的应用,不仅解决了该类型地区电极供电问题,同时极大提高了生产效率,野外勘探数据质量也大幅提高,取得了较好的应用效果。
In gobi region of Xinjiang,annual rainfall is rare,water evaporation is strong,surface is dry,and hence it is easy to form a thin layer of dry Quaternary matter accumulation. High-power induced polarization geophysical prospecting requires a higher current,and electrode grounding resistance is often buried in a dry surface and is often quite large,which causes great difficulty in power supply. To effectively solve this problem and achieve the feasibility of high-power IP exploration,the authors took into account the increase of production efficiency,consulted the results of previous studies as well as production experience and,on such a basis,summed up and implemented a method for improving grounding resistivity in the dry thin-layer loose surface area,i.e.,the use of wet soil buried porous sheet electrodes. The application of this method not only solves the problem of electrode power supply in such a region but also improves the efficiency of production. In addition,field exploration data quality is significantly improved and good effects can be achieved.
出处
《物探与化探》
CAS
CSCD
2015年第6期1156-1159,共4页
Geophysical and Geochemical Exploration
基金
山东省国土资源厅地质勘查项目(鲁勘字(2013)106号)
关键词
薄层干燥松散层
湿土掩埋多孔片状电极法
大功率激电勘探
接地电阻
棒状电极
thin layer dry loose layer
wet soil buried porous sheet electrode method
large-power IP exploration
grounding resistance
rod electrodes
