CAJ | 학술논문

　　边坡稳定是决定露天矿山安全生产的前提，应用颗粒流方法研究边坡稳定性的首要任务是获得合理的边坡岩体强度参数。研究了应用于颗粒流的节理边坡岩体强度参数获取方法，应用点荷载仪及ShapeMetriX3D岩体数字测量技术进行边坡岩体调查，由修正Hoek-Brown准则得到岩体强度参数，最后通过宏细观参数标定确定相应的颗粒流细观参数。结合河北钢铁矿业公司黑山露天铁矿工程实例，建立边坡颗粒流模型，研究了挂帮矿回采中岩体的变形、失稳、破坏的整个过程，并与现场勘测结果和相似试验结果对比，得到的岩体破坏模式相似。
　　변파은정시결정로천광산안전생산적전제，응용과립류방법연구변파은정성적수요임무시획득합리적변파암체강도삼수。연구료응용우과립류적절리변파암체강도삼수획취방법，응용점하재의급ShapeMetriX3D암체수자측량기술진행변파암체조사，유수정Hoek-Brown준칙득도암체강도삼수，최후통과굉세관삼수표정학정상응적과립류세관삼수。결합하북강철광업공사흑산로천철광공정실례，건립변파과립류모형，연구료괘방광회채중암체적변형、실은、파배적정개과정，병여현장감측결과화상사시험결과대비，득도적암체파배모식상사。
Safety production of open-pit mine mainly depends on the stability of slope. The first step to investigate the stability of slope by using particle flow code is to obtain a series of reasonable characte-ristic parameters which are mainly controlled by strength of rocks and distribution of joints. By virtue of a project case in Heishan open-pit mine, one of the iron ore mines of Hebei Iron and Steel Group Min-ing Company (HBIS), the application of an approach to obtain the characteristic parameters of jointed rock slope is presented in this paper. The strength of rock and distribution of joints were investigated by rock point load instrument system and ShapeMetriX3D system separately. The Hoek-Brown failure crite-rion is found suitable to estimate geo-mechanical parameters. Then the values are applied to the numer-ical simulation of PFC2D. Through this study, an vision of where the failure started, how it developed and what the final failure looked like during the process of mining the hanging wall ore is put forward and the simulation results which are similar to the site survey and similarity models give a reference to guide the slope deformation monitoring.