崩落矿岩散粒体流动性能试验研究

›› 2009, Vol. 30 ›› Issue (10): 2950-2954.

崩落矿岩散粒体流动性能试验研究

陶干强¹，杨仕教¹，任凤玉²

1.南华大学核资源与安全工程学院，湖南衡阳 421001；2.东北大学采矿系，沈阳 110006

收稿日期:2008-06-13 出版日期:2009-10-10 发布日期:2009-12-23
作者简介:陶干强，男，1971年生，博士，副教授。主要从事采矿工艺、散体动力学方面的研究
基金资助:
湖南省自然科学基金项目（No. 07JJ3090, No. 06JJ5084）；湖南省教育厅项目（No. 05C488）

Experimental research on granular flow characters of caved ore and rock

TAO Gan-qiang¹, YANG Shi-jiao¹, REN Feng-yu²

1. School of Nuclear Resources and Safety Engineering, University of South China, Hengyang 421001, China; 2. Mining department, Northeastern University, Shenyang 110006, China

Received:2008-06-13 Online:2009-10-10 Published:2009-12-23

摘要/Abstract

摘要：

崩落矿岩散粒体的流动性能对于降低损失贫化具有重要的意义。分析了影响散粒体流动性能的因素，采用标志颗粒法进行了崩落矿岩散粒体流动性能试验，主要考虑的因素有放矿口大小、散体颗粒的粒径以及不同的散体材料。试验内容有放矿口大小与散体移动带试验；不同散体粒径与散体移动带试验、不同散体材料与散体移动带试验；平面和立体模型时放矿口尺寸对放出量影响试验；散体堆积高度与散体移动带试验。研究结果表明，（1）移动边界与散体的材料、颗粒的尺寸大小、放矿口大小等因素有关，而散体堆积高度对其影响不大；（2）散体的流动速度与散体颗粒的大小和放矿口尺寸有关。根据所得试验结果，提出了采矿设计参数的确定方法。

关键词: 散粒体, 流动性能, 移动边界, 放矿口

Abstract:

The flow characters of caved ore and rock is important for reducing ore lose and ore dilution. Firstly, the effected reasons of flow characters for caved ore and rock are analyzed. Secondly, experiments are carried out to study the granular flow characters considering the size of drawing hole, size of grain and type of material by index grain method. The relationship among the moving border, size of drawing hole, size of grain, type of grain and the height of grain is studied. The relationship between the size of drawing hole and the released quantity is studied by plane pattern and stereo pattern. The main experimental results are as follows: (1) the moving border is related with the size of grain, size of drawing hole and type of material. However, the piling height of grain has little effect on the moving border; (2) the flow speed of grain is effected by size of grain and size of drawing hole. Based on the experimental results, a method of determining the mining design parameters is put forward.

Key words: granular, flow character, moving border, drawing hole

中图分类号:

TU 443

陶干强，杨仕教，任凤玉. 崩落矿岩散粒体流动性能试验研究[J]. , 2009, 30(10): 2950-2954.

TAO Gan-qiang, YANG Shi-jiao, REN Feng-yu. Experimental research on granular flow characters of caved ore and rock[J]. , 2009, 30(10): 2950-2954.

参考文献

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

本文评价

推荐阅读 10

[1]	姚仰平，侯伟. 土的基本力学特性及其弹塑性描述[J]. , 2009, 30(10): 2881 -2902 .
[2]	石玉玲，门玉明，彭建兵，黄强兵，刘洪佳. 地裂缝对不同结构形式桥梁桥面的破坏试验研究[J]. , 2009, 30(10): 2917 -2922 .
[3]	徐速超，冯夏庭，陈炳瑞. 矽卡岩单轴循环加卸载试验及声发射特性研究[J]. , 2009, 30(10): 2929 -2934 .
[4]	易俊，姜永东，鲜学福，罗云，张瑜. 声场促进煤层气渗流的应力-温度-渗流压力场的流固动态耦合模型[J]. , 2009, 30(10): 2945 -2949 .
[5]	黄润秋，徐德敏. 岩石（体）渗透性测试的体变量法研究[J]. , 2009, 30(10): 2961 -2964 .
[6]	孙勇. 滑坡面下双排抗滑结构的计算方法研究[J]. , 2009, 30(10): 2971 -2977 .
[7]	陈阵，陶龙光，李涛，李海斌，王综勇. 支护结构作用的箱基沉降计算新方法[J]. , 2009, 30(10): 2978 -2984 .
[8]	楚锡华，徐远杰. 基于形状改变比能对M-C准则与 D-P系列准则匹配关系的研究[J]. , 2009, 30(10): 2985 -2990 .
[9]	王淑云，鲁晓兵，赵京，王爱兰. 粉质黏土周期荷载后的不排水强度衰化特性[J]. , 2009, 30(10): 2991 -2995 .
[10]	吴琼，唐辉明，王亮清，林志红. 库水位升降联合降雨作用下库岸边坡中的浸润线研究[J]. , 2009, 30(10): 3025 -3031 .