采矿与安全工程学报
採礦與安全工程學報
채광여안전공정학보
JOURNAL OF MINING AND SAFETY ENGINEERING
2014年
1期
102-107
,共6页
冒落带%空隙率%动态高度%碎胀系数%分形
冒落帶%空隙率%動態高度%碎脹繫數%分形
모락대%공극솔%동태고도%쇄창계수%분형
caved zone%porosity%dynamic height%broken expansion coefficient%fractal
基于冒落带的形成过程，对冒落带的动态高度进行了系统的研究。研究表明，冒落带最终冒落高度主要取决于垮落岩石散体残余碎胀系数的大小，而残余碎胀系数的大小决定于垮落岩石散体的空隙率。据此，建立了基于分形几何的空隙率计算模型，并在所建的空隙率计算模型基础上，给出了残余碎胀系数与岩体初始碎胀系数的关系，推导出冒落岩石散体充填整个采空区最终冒带高度的计算模型。最后，结合工程实例，对所建模型进行了验证。
基于冒落帶的形成過程，對冒落帶的動態高度進行瞭繫統的研究。研究錶明，冒落帶最終冒落高度主要取決于垮落巖石散體殘餘碎脹繫數的大小，而殘餘碎脹繫數的大小決定于垮落巖石散體的空隙率。據此，建立瞭基于分形幾何的空隙率計算模型，併在所建的空隙率計算模型基礎上，給齣瞭殘餘碎脹繫數與巖體初始碎脹繫數的關繫，推導齣冒落巖石散體充填整箇採空區最終冒帶高度的計算模型。最後，結閤工程實例，對所建模型進行瞭驗證。
기우모락대적형성과정，대모락대적동태고도진행료계통적연구。연구표명，모락대최종모락고도주요취결우과락암석산체잔여쇄창계수적대소，이잔여쇄창계수적대소결정우과락암석산체적공극솔。거차，건립료기우분형궤하적공극솔계산모형，병재소건적공극솔계산모형기출상，급출료잔여쇄창계수여암체초시쇄창계수적관계，추도출모락암석산체충전정개채공구최종모대고도적계산모형。최후，결합공정실례，대소건모형진행료험증。
Based on the formation process of caved zone, the dynamic height of caved zone is studied systematically. The studies have shown that the ultimate caving height mainly depends on residual bro-ken expansion coefficient of breaking down rock dispersions, while the residual broken expansion coef-ficient is determined by the porosity of breaking down rock dispersions. Accordingly, the porosity cal-culation model is set up by fractal geometry. The relationship between residual broken expansion coef-ficient and initial broken expansion coefficient of rock is given based on the porosity calculation model. The calculation model of ultimate caved zone height of caving rock filling the whole mined-out area is deduced. At last, the model is verified by an engineering example.
