|本期目录/Table of Contents|

[1]刘三平,马海涛,李长洪.地下铁矿扩界开采地表影响范围预测[J].中国安全生产科学技术,2015,11(7):123-128.[doi:10.11731/j.issn.1673-193x.2015.07.020]
 LIU San-ping,MA Hai-tao,LI Chang-hong.Prediction of surface influence range of expanding mining in an underground iron mine[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(7):123-128.[doi:10.11731/j.issn.1673-193x.2015.07.020]
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地下铁矿扩界开采地表影响范围预测
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
11
期数:
2015年7期
页码:
123-128
栏目:
职业安全卫生管理与技术
出版日期:
2015-07-30

文章信息/Info

Title:
Prediction of surface influence range of expanding mining in an underground iron mine
作者:
刘三平12 马海涛2 李长洪1
(1.北京科技大学 土木与环境工程学院,北京100083; 2.中国安全生产科学研究院 国家安全生产监督管理总局采空区灾害防治安全生产重点实验室,北京100012)
Author(s):
LIU San-ping12 MA Hai-tao2 LI Chang-hong12
(1. Civil & Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China; 2. China Academy of Safety Science and Technology, Key Laboratory on Mining Goaf Disaster Prevention of SAWS, Beijing 100012, China)
关键词:
地下开采地表沉降充填法概率积分法
Keywords:
underground mining surface subsidence filling method probability integral method
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2015.07.020
文献标志码:
A
摘要:
矿山开采活动形成的地下空区往往会对地表造成一定的影响,为确保矿山的安全生产并提供地表影响范围计算的科学依据,现根据某铁矿采用下向胶结充填法采矿需进行扩界开采的工程实际,将该矿的地表影响范围运用概率积分法进行预测。在已知该矿9条勘探线矿体形状的基础上,根据图件可得矿体的埋深、倾角、产状等基础资料,对于较薄矿体以及尖灭部位需做适当的处理,提供更为客观正确的计算数据。以地表沉陷数值的大小为参考标准运用概率积分法计算出地表移动边界和需监测范围,并计算倾斜、曲率和水平应变判断地表建筑物是否位于安全区。可得矿区周边房屋均处于安全区内和地表移动边界之外,扩界开采对地表影响较小,为同类工程提供参考和建议。
Abstract:
The underground empty area caused by mining activity often causes the surface subsidence. In order to ensure production safety and provide a calculation basis of surface influence range, the probability integral method was used to predict the surface influence range of a mine which would expand mining boundary with downward cement filling method. Based on the knowledge about ore body form of nine prospecting lines in this mine, the basic information such as buried depth, dip angle, and occurrence of ore body were obtained from the graphs. To provide a more objective and correct calculation data, the thinner ore body and pointed parts were processed appropriately. The surface movement boundary and monitoring range were determined by probability integral method with taking the magnitude of surface subsidence value as reference standard, and the tilt, curvature and horizontal strain were calculated to judge whether the surface buildings were located in the safety zone. It showed that the surrounding surface houses were all existing in the safety area and out the surface moving boundary, so the expanding mining had less effect on the surface. It can provide reference and suggestions for similar projects.

参考文献/References:

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备注/Memo

备注/Memo:
中国安全生产科学研究院基础科研业务项目(2015JBKY05)
更新日期/Last Update: 2015-07-30