[1]孙平,王谦,王重阳,等.物探方法在采矿坑回填土石与基岩分界面勘探中的应用[J].华东地质,2023,44(04):439-447.[doi:10.16788/j.hddz.32-1865/P.2023.04.007]
　SUN Ping,WANG Qian,WANG Chongyang,et al.Application of geophysical method in the interface exploration between backfill soil rock and bedrock of the mine pit[J].East China Geology,2023,44(04):439-447.[doi:10.16788/j.hddz.32-1865/P.2023.04.007]
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物探方法在采矿坑回填土石与基岩分界面勘探中的应用()
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《华东地质》[ISSN:2096-1871/CN:32-1865/P]

卷:
44
期数:
2023年04期
页码:
439-447
栏目:
其他
出版日期:
2023-12-27

文章信息/Info

Title:
Application of geophysical method in the interface exploration between backfill soil rock and bedrock of the mine pit
作者:
孙平;  王谦;  王重阳;  刘俊伯;  陈峰;  张建
江苏省地质勘查技术院, 江苏南京 210049
Author(s):
SUN Ping;  WANG Qian;  WANG Chongyang;  LIU Junbo;  CHEN Feng;  ZHANG Jian
Geological Exploration Technology Institute of Jiangsu Province, Nanjing 210049, Jiangsu, China
关键词:
高密度电阻率法; 地质雷达; 基岩面; 采矿坑回填; 超采
Keywords:
high-density resistivity method; ground penetrating radar; bedrock surface; mining pit backfilling; over mining
分类号:
P631
DOI:
10.16788/j.hddz.32-1865/P.2023.04.007
摘要:
在矿山地质环境治理工作中发现有矿企存在明显的超采行为,且为掩饰违法行为用杂土、乱石回填采矿坑。为追究违法责任,行政部门需要确定实际开采范围及超采量。由于矿坑大部分被回填土石覆盖,无法直接测量,需要工程勘探揭露回填土石与基岩分界面。研究表明,采用物探方法中的高密度电阻率法、地质雷达法对土石回填的石灰岩矿坑进行先期勘探,推断回填土石与底部基岩分界面、浅覆盖区矿坑边界,可为钻探孔位布置、深度设计提供参考;通过综合分析物探、钻探成果确定回填土石与基岩分界面,与采矿许可范围对比可计算超采量。钻探工程表明物探推断结果较准确,二者相互配合可明显提高工作效率,降低勘探成本。
Abstract:
In the management process of mining geological environment, it is found that some mining enterprises had obvious over-exploration activities, which were usually concealed later by backfilling mining pits with mixed soil and rocks. In order to investigate the illegal liability, the administration needs to scope the actual mining area and excessive amount of over mining. Since most part of the mine pit is covered by backfilled soil and rocks, it cannot be directly measured, needing engineering exploration to reveal the interface between backfilled soil and rocks and bedrock. Studies show that the high-density resistivity and ground penetrating radar adopted as geophysical means in the preliminary exploration on the backfilled limestone pit can infer the interface between the backfilled body and the bottom bedrock, and the pit boundary in the shallow coverage area, which can provide guidance for the layout and depth design of drilling hole. The comprehensive analysis of geophysical prospecting and drilling results can determine the interface between the backfilled and the bedrock, with the comparison to licensed mining scope calculating the over-mining amount. Drilling work verify that the geophysical inference results are relatively accurate, and the collaboration of the two approaches can significantly improve work efficiency and reduce exploration costs.

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备注/Memo

备注/Memo:
收稿日期:2022-07-24;改回日期:2022-12-12。
作者简介:孙平,1988年生,男,工程师,本科,主要从事地球物理勘探工作。Email:post_cn@163.com。
更新日期/Last Update: 1900-01-01