›› 2018, Vol. 39 ›› Issue (9): 3385-3394.doi: 10.16285/j.rsm.2016.2897

• 岩土工程研究 • 上一篇    下一篇

地下采矿引起的程潮铁矿东区地表变形规律研究

邓洋洋1, 2,陈从新1, 2,夏开宗1, 2,付 华1, 2,孙朝燚1, 2,宋许根1, 2   

  1. 1. 中国科学院武汉岩土力学研究所 岩土力学与工程国家重点实验室,湖北 武汉 430071;2. 中国科学院大学,北京 100049
  • 收稿日期:2016-12-13 出版日期:2018-09-11 发布日期:2018-10-08
  • 通讯作者: 夏开宗,男,1988年生,博士,助理研究员,主要从事边坡稳定性、地下采矿稳定性等方面的研究工作。E-mail: xiakaizong1988@sina.com E-mail: dengyang_2014@sina.com
  • 作者简介:邓洋洋,男,1991年生,博士研究生,主要从事边坡稳定性、地下采矿稳定性等方面的研究工作。
  • 基金资助:

    国家自然科学基金青年基金项目(No.41602325,No.11602284);国家自然科学基金面上项目(No.11472293)。

Ground movement and deformation caused by underground mining in eastern area of Chengchao iron mine

DENG Yang-yang1, 2, CHEN Cong-xin1, 2, XIA Kai-zong1, 2, FU-hua1, 2, SUN Chao-yi1, 2, SONG Xu-gen1, 2   

  1. 1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China; 2. University of Chinese Academy of Science, Beijing 100049, China
  • Received:2016-12-13 Online:2018-09-11 Published:2018-10-08
  • Supported by:

    This work was supported by the Youth Fundation of the National Natural Science of China (41602325, 11602284) and the General Program of National Natural Science Foundation Project(11472293).

摘要: 金属矿山由于其矿体形态多变、地质条件复杂、多非充分采动、开采方法多样、构造应力显著及结构效应明显等特点,难以把握由地下采矿引起的地表变形和岩体的破坏形式。以程潮铁矿东区为例,依据近年(2010年3月至2015年9月)的地表变形实测数据,绘制出相应的监测成果图。结合三维激光扫描等新技术再现地表变形三维盆地,探究了地下开采影响下的地表变形规律和机制。对矿区上下盘地表变形规律等进行了比较分析,结果表明:程潮铁矿东区在采矿初期发生筒状冒落;变形传递到地表后,在采空区正上方形成大小不等的漏斗状塌坑群。上盘地表变形扩展与采矿推进度有较好的对应关系;水平应力是岩体变形的主动力,应力不断释放影响着地表变形特征。结构面倾向改变了上、下盘岩体的破坏形式,减缓和加速了上下盘岩体的破坏。同时,在坡体形态的影响下,地表变形在下坡方向总变形量增大和垂直变形增量更大。

关键词: 地表变形, 水平应力, 结构面, 坡体形态

Abstract: It is challenging to represent the surface deformation characteristics and the rock mass failure modes caused by underground mining, since there are many uncontrolled factors such as variational orebody shapes, complex geological conditions, mostly subcritical excavation, different mining methods, conspicuous tectonic stress and obvious structure effect. In this study, the eastern area of Chengchao iron mine was selected as an example, and monitoring results were achieved by 3D laser scanning and GPS surveying based on the first-hand monitoring data of surface deformation from March 2010 to September 2015. Thus the surface deformation characteristics and rock mass failure mechanisms caused by underground mining were explored. The comparative analysis of surface deformation in the hanging wall and on the footwall of eastern area of Chengchao iron mine showed that: tubular caving continuously developed upwards at the beginning of the mining. Different sizes of funnel-shaped collapse pits appeared on the mined-out area surface after the rock mass caving propagated to the ground. The extension of surface deformation was consistent with the mining advance in the hanging wall. Furthermore, the surface deformation characteristics were mainly affected by horizontal stress which served as a main driving force of rock mass deformation. Additionally, the damage modes of rock mass were changed by the structural plane, which mainly slowed down and accelerated rock mass deformation in the hanging wall and footwall, respectively. Moreover, the total deformation and the vertical deformation rate were much greater in the downward direction due to the slope morphology.

Key words: surface deformation, horizontal stress, structural plane, slope morphology

中图分类号: 

  • TU 325
[1] 宋许根,陈从新,庞厚利,夏开宗,陈 山,杨括宇,孙朝燚,. 金属矿山采矿推进与地表变形关系研究[J]. , 2018, 39(S1): 425-436.
[2] 肖国峰,陈从新. 岩质块体渐进破坏的稳定分析方法[J]. , 2018, 39(8): 3001-3010.
[3] 王斐笠,王述红,修占国. 应力波扰动下结构面的应力量化及强度表征[J]. , 2018, 39(8): 2844-2850.
[4] 崔 臻,盛 谦,冷先伦,罗庆姿,. 地下洞室地震动力响应的岩体结构控制效应[J]. , 2018, 39(5): 1811-1824.
[5] 周 辉,程广坦,朱 勇,卢景景,陈 珺,崔国建,李振国,. 基于三维扫描和三维雕刻技术的岩石结构面原状重构方法及其力学特性[J]. , 2018, 39(2): 417-425.
[6] 冯 帆,李夕兵,李地元,陈 冲. 基于有限元/离散元耦合分析方法的含预制裂隙圆形孔洞试样破坏特性数值分析[J]. , 2017, 38(S2): 337-348.
[7] 王 进,朱泽奇,陈 健,付晓东,房 强, . 海相沉积软土的自钻式旁压试验及原位力学特性[J]. , 2017, 38(S1): 195-202.
[8] 刘铁新,邓建辉,陈 滔,李林芮, . 考虑结构面间距的双因素分组方法研究[J]. , 2017, 38(S1): 219-224.
[9] 宋磊博,江 权,李元辉,杨成祥,钟 山,张妹珠,. 不同采样间隔下结构面形貌特征和各向异性特征的统计参数稳定性研究[J]. , 2017, 38(4): 1121-1132.
[10] 王 晓,文志杰,MIKAEL Rinne,沈宝堂,谢 军,. 非均布荷载作用下煤岩力学强度特性试验研究[J]. , 2017, 38(3): 723-730.
[11] 王昌硕,王亮清,葛云峰,梁 烨,孙自豪,董曼曼,张 楠. 基于统计参数的二维节理粗糙度系数非线性确定方法[J]. , 2017, 38(2): 565-573.
[12] 宋磊博,江 权,李元辉,杨成祥,冉曙光,王百林,刘 挺,. 基于剪切行为结构面形貌特征的描述[J]. , 2017, 38(2): 525-533.
[13] 张敏思,杨 勇,梁海安,. 基于凹体凸化的全空间块体识别方法[J]. , 2017, 38(12): 3698-3706.
[14] 葛云峰,陈 勇,王亮清,霍少磊,王昌硕,夏 丁,钟 鹏,. 基于点云数据对齐技术的岩体结构面三维吻合度求取[J]. , 2017, 38(11): 3385-3393.
[15] 张雨霆,丁秀丽,邬爱清,卢 波. 有厚度天然结构面法向循环加载变形特性研究[J]. , 2017, 38(10): 2865-2872.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] 叶建忠 ,周 健 ,韩 冰 , . 灌注桩侧摩阻力发挥模式的研究[J]. , 2006, 27(11): 2029 -2032 .
[2] 赵理政,姜洪涛,唐朝生,施 斌. 超微粒子水泥加固软土试验研究[J]. , 2010, 31(1): 118 -122 .
[3] 李金凤 ,杨启贵 ,徐卫亚,. 应力路径对堆石体变形的影响[J]. , 2007, 28(S1): 619 -622 .
[4] 陈 辉,韦昌富,陈 盼,伊盼盼,颜荣涛. 一种测定非饱和土-水力学参数的方法[J]. , 2010, 31(10): 3348 -3353 .
[5] 张晓君. 高应力硬岩卸荷岩爆模式及损伤演化分析[J]. , 2012, 33(12): 3554 -3560 .
[6] 王进廷,张楚汉,金 峰. 淤砂层模拟方法对上层理想流体动力反应的影响 ——平面P波入射[J]. , 2007, 28(10): 2065 -2070 .
[7] 郑 刚 ,李志伟 . 考虑初始不均匀沉降的建筑物受基坑开挖影响的有限元分析[J]. , 2012, 33(8): 2491 -2499 .
[8] 杨志全 ,侯克鹏 ,郭婷婷 ,马 秋. 黏度时变性宾汉体浆液的柱-半球形渗透注浆机制研究[J]. , 2011, 32(9): 2697 -2703 .
[9] 李小娟,陈雪奖,戴国亮,龚维明,. 黏性土中钻孔灌注桩自平衡转换系数取值研究[J]. , 2016, 37(S1): 226 -232 .
[10] 胡春林 ,王茂丽 ,李 坤 . 基于沉降控制的软土路基粉喷桩加固设计方法探讨[J]. , 2006, 27(6): 969 -972 .