三重管单动回转取土器在尾砂充填体勘察中的应用  

Application of triple-tube single-action rotary corer in geotechnical investigation of tailings fill

作　　者：刘宇潇 LIU Yuxiao(Comprehensive Geological Exploration Unit,East-China Metallurgical Bureau of Geology and Exploration,Ma’anshan,Anhui 243000,China)

机构地区：[1]华东冶金地质勘查局综合地质大队,安徽马鞍山243000

出　　处：《安徽地质》2025年第1期78-82,共5页Geology of Anhui

摘　　要：为检验姑山铁矿露天采坑尾砂胶结充填体的强度,矿业权人先后组织开展了两次工程勘察。其中补充勘察采用了三重管单动回转取土器进行钻探和采样,通过与原勘察成果对比可知,三重管单动回转取土器能够有效提高岩心采取率,有助于采集到符合试验要求的原状土样;同时选用无侧限抗压、三轴压缩试验等较为科学严谨的土工试验方法,能够检测出更加真实、客观的物理力学参数,达到预期强度检验指标。To test the strength of the cemented tailings fill in the Gushan mine’s open pit,the mining right holder has performed two geotechnical investigations.In the second time of supplemental investigation three-tube single-action rotary corer was used for sampling while drilling,which has effectively improved the recovery of the core that is not or little disturbed compared with that collected in the first time.At the same time,the more scientific and rigorous geotechnical test methods such as unconfined compression test and triaxial compression test can give more objective physical and mechanical parameters and achieve the expected strength test index.

关 键 词：三重管取土器 岩土工程勘察 尾砂胶结充填 

分 类 号：P642[天文地球—工程地质学]