|本期目录/Table of Contents|

[1]方传峰,余传玉,史存丁,等.基于FLAC3D模型动态更新的自然崩落法开采过程模拟技术[J].中国安全生产科学技术,2018,14(5):89-94.[doi:10.11731/j.issn.1673-193x.2018.05.013]
　FANG Chuanfeng,YU Chuanyu,SHI Cunding,et al.Simulation technology of mining process by natural caving method based on FLAC3D model with dynamic update[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(5):89-94.[doi:10.11731/j.issn.1673-193x.2018.05.013]
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基于FLAC3D模型动态更新的自然崩落法开采过程模拟技术
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年5期
页码:
89-94
栏目:
职业安全卫生管理与技术
出版日期:
2018-05-31

文章信息/Info

Title:
Simulation technology of mining process by natural caving method based on FLAC3D model with dynamic update
文章编号:
1673-193X(2018)-05-0089-06
作者:
方传峰1; 余传玉1; 史存丁1; 冯兴隆2
(1.中南大学 资源与安全工程学院，湖南 长沙 410083；2.云南迪庆有色金属有限责任公司，云南 香格里拉，674400)
Author(s):
FANG Chuanfeng1;  YU Chuanyu1;  SHI Cunding1;  FENG Xinglong2
(1.School of Resources and Safety Engineering, Central South University, Changsha Hunan 410083, China; 2.Yunnan Diqing Nonferrous Metal Co., Ltd., Shangri-La Yunnan 674400, China)
关键词:
自然崩落法; 有限差分; 数值模拟; 显式崩落; 出矿控制; 崩落区
Keywords:
natural caving method;  finite difference;  numerical simulation;  explicit caving;  ore drawing control;  caving area
分类号:
TD853.36
DOI:
10.11731/j.issn.1673-193x.2018.05.013
文献标志码:
A
摘要:
针对以往应用FLAC3D软件模拟分析时，没有考虑模型动态更新，以真实反映自然崩落法开采过程的问题，研究了基于FLAC3D软件，进行矿岩崩落过程模拟的模型动态更新思想、原则和流程，利用内嵌FISH语言编制了相应的程序代码。以西南某采用自然崩落法开采的大型铜矿为应用实例，结合每一步拉底方案模拟其地压演化状态，通过自动识别崩落区、自动消除和重现单元，并修改单元力学参数，再现了矿山开采过程，根据待重现单元体积与空隙体积，确定拉底和出矿速度的平衡关系，从而指导矿山合理确定和调整拉底和放矿速度。
Abstract:
For the past simulation analysis using FLAC3D software without considering the dynamic update of the model, in order to truly reflect the mining process by the natural caving method, the ideas, principles and procedure of the dynamic updating model for the simulation of ore-rock caving process based on FLAC3D software were studied, and the corresponding program codes were compiled by using the embedded FISH language. Taking a large-scale copper mine mined by the natural caving method in Southwest China as an application example, the evolution of its ground pressure was simulated in combination with the step-by-step undercutting scheme. The mining process was reproduced by automatically identifying the caving area, automatically eliminating and reappearing units, and modifying the unit mechanical parameters. According to the volume of the unit to be reproduced and the void volume, the balance relationship between the undercutting speed and the ore drawing speed was determined, so as to guide the mine to reasonably determine and adjust the undercutting and ore drawing speeds.

参考文献/References:

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备注/Memo

备注/Memo:
国家重点研发计划项目（2017YFC0602905）
更新日期/Last Update: 2018-06-19