基于非线性弹性地基梁的地下矿山充填开采覆岩移动规律研究

doi:10.11872/j.issn.1005-2518.2024.04.097

Abstract

Abstract:

In the extraction of overlying orebodies in complex environments，it is imperative to prioritize safety and efficiency while preserving the stability of rock strata to prevent surface collapse and safeguard structures.To accomplish these objectives，it is essential to develop effective strategies for managing rock strata movement by comprehensively assessing the impact of underground backfill mining.An initial study was conducted on the impact of various mining field structural parameters，including roof thickness，original rock stress，and backfill ratio，on overlying rock movement at the Panlong lead-zinc mine.This analysis utilized a nonlinear elastic foundation beam mechanical model.Subsequent numerical simulations were performed to determine overlying rock movement values under varying backfill ratios.The results were compared to those obtained from the mechanical model，revealing differences ranging from 3% to 9%，thus validating the reliability of the mechanical model’s results.A ground mine backfill mining technology for controlling settlement of overlying rock was proposed and implemented in industrial experiments.Research findings suggest that the primary factors influencing overlying rock movement，in order of significance，are the backfill ratio，structural parameters of the mining field，roof thickness，and original rock stress.Increasing the backfill ratio is crucial for managing overlying rock displacement，while adjusting anchor support spacing and backfill ratio according to the mining field structure are effective methods for controlling overlying rock displacement.

Key words: nonlinear elastic foundation beam, numerical simulation, strata movement control, backfill mining, overlying rock movement patterns, movement monitoring

CLC Number:

TD853

Xiangrui HE, Xianyang QIU, Xiuzhi SHI, Xiaoyuan LI, Wei ZHI, Jun LIU, Yuanlai WANG. Study on the Movement Law of Overlying Strata in Underground Mining with Nonlinear Elastic Foundation Beam[J].Gold Science and Technology, 2024, 32(4): 640-653.

Figures/Tables 18

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Fig.6

Table 1

Fig.7

Fig.8

Table 2

Fig.9

Fig.10

Table 3

Fig.11

Fig.12

Fig.13

Fig.14

Fig.15

References 0

	Cui X， Gao Y， Yuan D，2014.Sudden surface collapse disasters caused by shallow partial mining in Datong coal field，China［J］.Natural Hazards，74（2）：911-929.
	Dai Huayang，2002.Study on seam inclination based mining subsidence model and its visualized application with GIS［J］.Chinese Journal of Rock Mechanics and Engineering，（1）：148.
	Deng X， Yuan Z， Lan L，et al，2020.Roof movement and failure behavior when mining extra-thick coal seams using upward slicing longwall-roadway cemented backfill technology［J］.Advances in Materials Science and Engineering，2020：e5828514.
	Guo Kaikai，2022.Research on Strata Movement Rule and Control in Deep Solid Backfilling Mining［D］.Beijing：China University of Mining and Technology.
	Han Longqiang， Wu Shunchuan， Li Zhipeng，2016.Study of non-proportional strength reduction method based on Hoek-Brown failure criterion［J］.Rock and Soil Mechanics，37：690-696.
	Hu Wanjie，2023.Application of Refined GSI Geological Model in Slope Stability Analysis and Research［D］.Changsha：Changsha Mining Research Institute.
	Huang Dan， Yu Bin， Wang Yunchang，et al，2024.Study on aluminum mining under coal and uniform settlement control technology of overlying rock［J］.Journal of Mining and Safety Engineering，41（1）：95-106.
	Kim K D， Lee S， Oh H J，et al，2006.Assessment of ground subsidence hazard near an abandoned underground coal mine using GIS［J］.Environmental Geology，50（8）：1183-1191.
	Lan Lixin，2018.Roof Movement Analysis in the Backfill Mining Area Based on Nonlinear Elastic Foundation Beam［D］.Beijing：China University of Mining and Technology（Beijing）.
	Loganathan N， Poulos H G，1998.Analytical prediction for tunneling-induced ground movements in clays［J］.Journal of Geotechnical and Geoenvironmental Engineering，124（9）：846-856.
	Luo Xiao，2021.Study on safety thickness of layered-roof based on improved Protodyakonov equilibrium arch theory［J］.Coal Science and Technology，49（11）：73-80.
	Ma Shaowei，2022.Study on Collaborative Mining Theory and Roof Strata Mechanical Behavior of Deep Gently Inclined Medium-Thick Orebody［D］.Changsha：Central South University.
	Nie Yuxu，2023.Temporal and Spatial Evolution Law of Mining Fissures in Thick Sandstone Roof and Evaluation of Water Inrush Risk［D］.Beijing：China University of Mining and Technology（Beijing）.
	Ortlepp W D， Stacey T R，1998.Performance of tunnel support un-der large deformation static and dynamic loading［J］.Tunnelling and Underground Space Technology，13（1）：15-21.
	Qian Minggao， Li Hongchang，1982.Activity rules of overlying rock strata in mining areas and their influence on mine pressure［J］.Journal of Coal Science，（2）：1-12.
	Qin Chaoliang， Long Jianhui， Jing Ming，et al，2015.Comprehensive management scheme of geological hazards and ecological environment in coal mining subsidence areas［J］.Coal Technology，34（3）：320-323.
	Wang C， Li S，2020.An innovative strata movement model for predicting overlying strata deformations［J］.Geotechnical and Geological Engineering，38（6）：5771-5785.
	Wang Zhengshuai，2011.Study on the Non-linear Prediction Theory of Old Goaf Residual Subsidence and Its Application［D］.Beijing：China University of Mining and Technology（Beijing）.
	Xu Yang，2023.The Overburden and Surface Deformation Characteristics of Deep Coal Mine Filling Mining Considering the Residual Deformation of Old Goaf［D］.Hefei：Anhui University of Science and Technology.
	Zhang Y， Cao S， Gao R，et al，2018.Prediction of the heights of the water-conducting fracture zone in the overlying strata of shortwall block mining beneath aquifers in western China［J］.Sustainability，10（5）：1636.
	Zhang Z J， Liu Y， He G C，et al，2012.Study on the effect of mined-out region on ground subsidence［J］.Advanced Materials Research，524/525/526/527：726-730.
	Zhao Guojing， Qian Minggao，1987.Deformation movement and mine pressure of hard rock layers in mining areas［J］.Journal of Coal Science，（3）：1-8.
	Zhu Shidong，2015.Study on the Laws of Overlying Strata Movement and Surface Subsidence in Wanghe Coal Mine Paste Filling［D］.Jiaozuo：Henan University of Science and Technology.
	戴华阳，2002.基于倾角变化的开采沉陷模型及其GIS可视化应用研究［J］.岩石力学与工程学报，（1）：148.
	郭凯凯，2022.深部固体充填开采岩层移动规律及控制研究［D］.北京：中国矿业大学.
	韩龙强，吴顺川，李志鹏，2016.基于Hoek-Brown准则的非等比强度折减方法［J］.岩土力学，37：690-696.
	虎万杰，2023.精细化GSI地质模型在边坡稳定性分析研究中的应用［D］.长沙：长沙矿山研究院.
	黄丹，余斌，王云昌，等，2024.煤下铝上行开采工艺控制覆岩均匀沉降研究［J］.采矿与安全工程学报，41（1）：95-106.
	兰立信，2018.基于非线性弹性地基梁的充填采场顶板运动研究［D］.北京：中国矿业大学（北京）.
	罗霄，2021.基于改进普氏平衡拱理论的层状顶板安全厚度研究［J］.煤炭科学技术，49（11）：73-80.
	马少维，2022.深部缓倾斜中厚矿体协同开采理论及顶板岩层力学行为研究［D］.长沙：中南大学.
	聂宇旭，2023.厚砂岩顶板采动裂隙发育时空演化规律及突水危险性评价［D］.北京：中国矿业大学（北京）.
	钱鸣高，李鸿昌，1982.采场上覆岩层活动规律及其对矿山压力的影响［J］.煤炭学报，（2）：1-12.
	秦朝亮，龙建辉，经明，等，2015.采煤塌陷区内地质灾害与生态环境的综合治理方案［J］.煤炭技术，34（3）：320-323.
	王正帅，2011.老采空区残余沉降非线性预测理论及应用研究［D］.北京：中国矿业大学（北京）.
	徐阳，2023.顾及老采空区残余变形的深部煤矿充填开采覆岩及地表变形特征［D］.合肥：安徽理工大学.
	赵国景，钱鸣高，1987.采场上覆坚硬岩层的变形运动与矿山压力［J］.煤炭学报，（3）：1-8.
	朱时东，2015.王河矿膏体充填开采覆岩移动变形及地表沉陷规律研究［D］.焦作：河南理工大学.

Related Articles 15

[1]	Yunlin YU, Kepeng HOU, Bajiu YANG, Yong CHENG, Taihong LU, Nannan ZHANG. Study on Pillar Mining Scheme of Gaofengshan Ore Section in Yunxi [J]. Gold Science and Technology, 2024, 32(3): 445-457.
[2]	Bo LI, Chen WEN, Xiuzhi SHI. Optimization of Stope Sidewall Controlled Blasting Parameters for High-Stress Fan-Shaped Medium-Depth Hole [J]. Gold Science and Technology, 2024, 32(3): 511-522.
[3]	Kuan LIU, Guanwang MO, Xiang LI, Pinghuan SHEN, Bo WAN, Jiankun LIU. Optimization of the Construction Parameters of Super-large Section Flat Structure Tunnel [J]. Gold Science and Technology, 2024, 32(2): 330-344.
[4]	Kaibin WANG, Qin LIU, Hongtao WANG. Study on the Load Transfer Characteristics and Influence Factors of Anchora-ge Segment of Pressure-type Anchor Cable [J]. Gold Science and Technology, 2024, 32(1): 123-131.
[5]	Zefeng XU, Xiuzhi SHI, Rendong HUANG, Wenzhi DING, Xin CHEN. Study on Filling Pipeline Optimization Based on Full Pipe Transportation [J]. Gold Science and Technology, 2024, 32(1): 160-169.
[6]	Jielin LI, Yiliang LIU, Yupu WANG, Zaili LI, Keping ZHOU, Chunlong CHENG. Influence of Forced-Exhaust Mixed Ventilation Parameters on the Cooling Effect of Artificial Cooling in High-temperature Blind Roadway [J]. Gold Science and Technology, 2024, 32(1): 63-74.
[7]	Honglu FEI, Hainan JI, Jie SHAN. Optimization and Comparative Experimental Study of Charge Structure of Water Medium Interval on Open-air Step [J]. Gold Science and Technology, 2023, 31(6): 930-943.
[8]	Wenfa SHAN, Xiancheng MAO, Zhankun LIU, Hao DENG, Jin CHEN, Wei ZHANG, Haizheng WANG, Xin YANG. Numerical Simulation of Metallogenic Processes of Dayingezhuang Gold Deposit in Jiaodong Peninsula and Its Prospecting Significance [J]. Gold Science and Technology, 2023, 31(5): 707-720.
[9]	Yu ZHANG, Wenji WANG, Jiaqi SUN, Yonggang XIAO. Fracture Performances of Bedding Structure Slate Under Dynamic Loading [J]. Gold Science and Technology, 2023, 31(5): 803-810.
[10]	Yanan ZHAO, Yihang ZHAO, Zhongming JIANG, Hongmin ZHAO. Preliminary Study on Static and Dynamic Stability of Canister for High-level Radioactive Nuclear Waste Disposal Based on Discrete Element Method [J]. Gold Science and Technology, 2023, 31(4): 592-604.
[11]	Heng MA,Jiayi GAO,Shihu LI,Ke GAO. Influence of Jet Angle of Twin Parallel Air Curtains on the Tunnel Airflow [J]. Gold Science and Technology, 2022, 30(5): 743-752.
[12]	Duiming GUO,Guoqing LI,Jie HOU,Nailian HU. Optimization of Local Ventilation Parameters of Deep Mine Excavation Roadway Based on FLUENT [J]. Gold Science and Technology, 2022, 30(5): 753-763.
[13]	Zhanxing ZHOU,Kewei LIU,Xudong LI,Xiaohui HUANG,Sizhou MA. Numerical Simulation of Dynamic Response of Tunnel Lining Under Oil Tank Explosion [J]. Gold Science and Technology, 2022, 30(4): 612-622.
[14]	Lingzhi ZHONG,Xiancheng MAO,Zhankun LIU,Keyan XIAO,Chuntan WANG,Wu CHEN. Ore-controlling Effect of Structural Geometry Features in the Sanshandao Gold Belt，Jiaodong Peninsula，China： Insights from Numerical Simulation [J]. Gold Science and Technology, 2022, 30(3): 352-365.
[15]	Weihua WANG,Yang LIU,Liwei ZHANG,Henggen ZHANG. Numerical Simulation of Homogeneous Rock Mass Damage Caused by Two-hole Simultaneous Blasting Based on RHT Model [J]. Gold Science and Technology, 2022, 30(3): 414-426.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

Comments

Recommended 0

No Suggested Reading articles found!

序号	充填配比	k₁/（N?m^-3）	k₂/（N?m^-3）	k₃/（N?m^-3）
1	1∶4	1.13×10⁷	2.00×10⁷	2.29×10⁷
2	1∶8	4.57×10⁶	8.07×10⁶	9.25×10⁶
3	1∶10	2.79×10⁶	4.93×10⁶	5.65×10⁶
4	1∶12	1.92×10⁶	3.39×10⁶	3.88×10⁶

岩性	容重/（kg·m^-3）	弹性模量/GPa	泊松比	内摩擦角/（°）	黏聚力/MPa	抗拉强度/MPa	体积模量/GPa	剪切模量/GPa
矿体	3 430	30	0.24	32	4.24	3.5	19.2	12.1
上盘围岩	2 680	32	0.23	34	5.12	3.7	19.8	13.0
下盘围岩	2 700	35	0.23	33	4.80	4.5	21.6	14.2
充填体（1∶4）	1 980	0.0573	0.184	41.5	0.282	0.45	0.0302	0.0242
充填体（1∶8）	1 890	0.0231	0.196	38.7	0.171	0.17	0.0127	0.0097
充填体（1∶10）	1 830	0.0141	0.215	36.9	0.143	0.1	0.0082	0.0058
充填体（1∶12）	1 720	0.0097	0.227	33.2	0.105	0.02	0.0059	0.0040

充填配比	采空区顶板沉降/mm		差异率/%
充填配比	力学模型	数值模拟	差异率/%
1∶4	-12.389	-13.040	5.25
1∶8	-13.834	-14.320	3.51
1∶10	-15.260	-16.207	6.21
1∶12	-17.528	-19.078	8.84

Study on the Movement Law of Overlying Strata in Underground Mining with Nonlinear Elastic Foundation Beam

RichHTML

PDF (PC)