充填接顶率对空场嗣后充填法开采围岩变形规律的影响

金属矿山 ›› 2026, Vol. 55 ›› Issue (3): 55-62.

充填接顶率对空场嗣后充填法开采围岩变形规律的影响

巩瑞杰¹　叶会师¹　张　杰²　马强英³　路增祥³　李角群³

1. 河北钢铁集团司家营研山铁矿有限公司,河北唐山 063700;2. 中国恩菲工程技术有限公司,北京 100038;
3. 辽宁科技大学矿业工程学院,辽宁鞍山 114051

出版日期:2026-03-15 发布日期:2026-03-31
通讯作者: 路增祥(1965—),男,教授,博士,硕士研究生导师。
作者简介:巩瑞杰(1983—),男,高级工程师。
基金资助:
河钢集团重点科技项目(编号:HG2023215)。

Effect of Backfill Quality on Deformation Low of Surrounding Rock in Open Stoping with Subsequent Backfill Mining

GONG Ruijie¹　YE Huishi¹　ZHANG Jie²　MA Qiangying³　LU Zengxiang³　LI Jiaoqun³

1. Sijiaying Yanshan Iron Mine Co. ,Ltd. ,Hebei Iron & Steel Group,Tangshan 063700,China;
2. China ENFI Engineering Corporation,Beijing 100038,China;
3. School of Mining Engineering,University of Science and Technology Liaoning,Anshan 114051,China

Online:2026-03-15 Published:2026-03-31

摘要/Abstract

摘要： 为实现对司家营铁矿露天转地下开采围岩变形与地表沉降的有效控制,采用FLAC3D 数值模拟方法,构
建了空场嗣后充填采矿法盘区开采结构模型,研究了回采过程中不同充填接顶率下,充填体及盘区间柱对盘区围岩
变形的抑制作用,得到了不同影响因素下盘区围岩和盘区间柱的应力分布特征与变形破坏规律,以及采场充填接顶
率对围岩和间柱应力分布特征与变形破坏规律的影响。研究结果表明:① 充填接顶率对盘区围岩最大主应力分布基
本没有影响,最大主应力约71. 0 MPa,应力释放后达到4. 0 MPa 左右,采场围岩的最大主应力为73. 02~73. 15 MPa,
应力释放后约0. 6 MPa。采场中部围岩水平方向上的最小主应力未受到接顶率影响,其值约0. 78 MPa,垂直方向上的
最小应力为1. 57~1. 61 MPa,随着接顶率提高有减小趋势。② 采场开挖过程中,盘区上下盘及采场顶底板处产生了
较大位移,但随着充填接顶率提高,位移均呈减小趋势;盘区采场依次完成采、充后,采场顶底板分布有较多的剪切和
张拉塑性区,随充填接顶率提高,其分布范围逐渐减小,其中顶板的塑性区减小显著。③ 不同充填接顶率下,盘区间
柱内的最大主应力分布范围基本不变,最大主应力为126. 8~141. 0 MPa;当充填接顶率由80%提高到90%时,盘区间
柱的最小主应力由0. 74 MPa 降至0. 73 MPa,呈减小趋势。④ 随着充填接顶率提高,盘区间柱的张拉和剪切塑性破坏
区不断减小,当充填接顶率达到90%时,盘区间柱稳定性较好。研究结果对于改善采场及盘区围岩应力状态和防控
地表沉降有一定的实际意义。

Abstract: To achieve effective control of the deformation of surrounding rock and surface subsidence during the transition
from open-pit to underground mining of the Jiajiaoying Iron Mine,the FLAC3D numerical simulation method was adopted to construct
a mining structure model for the panel area of the open-pit followed by filling mining method. The inhibitory effect of the
filling body and panel barrier pillars on the deformation of the panel area surrounding rock under different filling support rates
during the mining process was studied. The stress distribution characteristics and deformation failure laws of the panel area surrounding
rock and panel barrier pillars under different influencing factors were obtained,as well as the influence of the filling
support rate of the mining area on the stress distribution characteristics and deformation failure laws of the surrounding rock and
inter-zone pillars. The study results show that:① The filling support rate has little effect on the maximum principal stress distribution
of the panel area surrounding rock,with the maximum principal stress being approximately 71. 0 MPa. After stress release,
it reaches about 4. 0 MPa. The maximum principal stress of the mining area surrounding rock is 73. 02 MPa to 73. 15
MPa,and after stress release,it is approximately 0. 6 MPa. The minimum principal stress in the horizontal direction of the min
ing area middle zone surrounding rock is not affected by the support rate,with a value of approximately 0. 78 MPa. The minimum
stress in the vertical direction is 1. 57 MPa to 1. 61 MPa,and it shows a decreasing trend with the increase of the support
rate. ② During the mining excavation process,large displacements occurred at the upper and lower panels and the top and bottom
plates of the mining area. However,as the filling support rate increased,the displacements all showed a decreasing trend.
After the pan area mining was completed successively and the filling and support were carried out,there were many shear and
tension plastic zones distributed on the top and bottom plates of the mining area. With the increase of the filling support rate,
the distribution range gradually decreased. The plastic zone of the top plate decreased significantly. ③ Under different filling
support rates,the maximum principal stress distribution range within the panel barrier pillars remained basically unchanged,
with the maximum principal stress being 126. 8 MPa to 141. 0 MPa. When the filling support rate increased from 80% to 90%,
the minimum principal stress of the panel barrier pillars decreased from 0. 74 MPa to 0. 73 MPa,showing a decreasing trend.
④ With the increase of the filling support rate,the tension and shear plastic failure zones of the panel barrier pillars continuously
decreased. When the filling support rate reached 90%,the stability of the panel barrier pillar was better. The study results
have certain practical significance for improving the stress state of the mining area and pan area surrounding rock and preventing
surface subsidence.

中图分类号:

TD853. 34

巩瑞杰, 叶会师, 张　杰, 马强英, 路增祥, 李角群. 充填接顶率对空场嗣后充填法开采围岩变形规律的影响[J]. 金属矿山, 2026, 55(3): 55-62.

GONG Ruijie　YE Huishi　ZHANG Jie　MA Qiangying　LU Zengxiang　LI Jiaoqun. Effect of Backfill Quality on Deformation Low of Surrounding Rock in Open Stoping with Subsequent Backfill Mining[J]. Metal Mine, 2026, 55(3): 55-62.

扫码分享