CAJ | 학술논문

利用动三轴仪，对船载散装红土镍矿的动力特性进行了试验研究。通过对振动双幅应变曲线和累积孔隙水压力曲线进行分析，探讨了含水量、动应力、固结度等因素对红土镍矿动力特性的影响。结果表明：含水量是影响红土镍矿动力特性的关键因素，且镍矿存在临界含水量，超过该临界含水量，红土镍矿的动力特性会发生突变；当动应力小于某一临界值时，动应力对镍矿动力特性影响有限；另外增加固结度可以提高红土镍矿的动强度。研究结果可为进一步分析镍矿流态破坏提供理论基础。
이용동삼축의，대선재산장홍토얼광적동력특성진행료시험연구。통과대진동쌍폭응변곡선화루적공극수압력곡선진행분석，탐토료함수량、동응력、고결도등인소대홍토얼광동력특성적영향。결과표명：함수량시영향홍토얼광동력특성적관건인소，차얼광존재림계함수량，초과해림계함수량，홍토얼광적동력특성회발생돌변；당동응력소우모일림계치시，동응력대얼광동력특성영향유한；령외증가고결도가이제고홍토얼광적동강도。연구결과가위진일보분석얼광류태파배제공이론기출。
Tests for onboard laterite nickel ore are carried out to study the dynamic characteristics of nickel ore by cyclic tri-axial test apparatus .Through analyzing the double amplitude strain curve and pore pressure curve , the influence of factors , such as water content , dynamic stress and the degree of consolidation , on dynamic charac-teristics of the nickel ore are discussed .The experimental results show that moisture content is the key factor for the dynamic behavior of the nickel ore .The nickel ore has critical water content , more than which the dynamic characteristics of the laterite nickel ore will mutate .When the dynamic stress is less than a certain critical value , the influence of dynamic stress on the dynamic characteristics of nickel is limited .The increase of the degree of consolidation can improve the dynamic strength .This study will provide a theoretical basis for further analysis of nickel ore flow damage .