Surface subsidence law caused by fully mechanized caving mining under railway

Authors

DENG Niandong, College of Geology & Environment, Xi'an University of Science and Technology, Xi'an 710054, China
YAO Ting, College of Geology & Environment, Xi'an University of Science and Technology, Xi'an 710054, ChinaFollow
SHANG Hui, College of Geology & Environment, Xi'an University of Science and Technology, Xi'an 710054, China
LIU Donghai, College of Geology & Environment, Xi'an University of Science and Technology, Xi'an 710054, China

Abstract

In order to ensure the safe running of the special railway for Guozhuang coal mine, the law of surface movement and deformation in goaf of the coal mine was studied on the basis of the analysis of the actual observation data, the monitoring scheme and control measures of railway under dynamic coal mining conditions were put forward in accordance with that. The results show that the surface movement and deformation are intense, the subsidence value is large, but the subsidence velocity is relatively small on account of fully mechanized caving; Surface subsidence coefficient, the main impact tangent tanβ, maximum subsidence angle are 0.76, 2.78, 89°. The total duration of surface movement is long, with the time of active period accounting for 58.7% and the subsidence amount in active period accounting for 89% of the total subsidence amount. Therefore, monitoring and prevention should be strengthened during active period.

Keywords

mining under railway, fully mechanized caving mining, surface movement and deformation, surface subsidence law

DOI

10.3969/j.issn.1001-1986.2019.06.019

Recommended Citation

DENG Niandong, YAO Ting, SHANG Hui, et al. (2019) "Surface subsidence law caused by fully mechanized caving mining under railway," Coal Geology & Exploration: Vol. 47: Iss. 6, Article 20.
DOI: 10.3969/j.issn.1001-1986.2019.06.019
Available at: https://cge.researchcommons.org/journal/vol47/iss6/20

Reference

[1] 李非. 我国三下采煤技术的应用及发展状况[J]. 技术与市场,2016,23(6):174. LI Fei. Application and development of mining techniques under the village,the railway and the water in China[J]. Technology and Markets,2016,23(6):174.

[2] 张银洲,王鹏飞,杨喆. 采空区地表变形与采深采厚比关系探讨[J]. 陕西煤炭,2011,30(4):19-21. ZHANG Yinzhou,WANG Pengfei,YANG Zhe. Discussion on the relationship between ground deformation and the ratio of mining depth to mining thickness in goaf[J]. Shaanxi Coal,2011,30(4):19-21.

[3] 开滦煤炭科学研究院情报室. 国外铁路下采煤[J]. 矿山测量,1975(2):31-38. Information center of Kailuan coal science research institute. Mining under railways over abroad[J]. Mine Survey,1975(2):31-38.

[4] 徐泮林,成枢,戴素娟,等. 矿区铁路专用线下综采放顶煤开采的试验研究[J]. 山东矿业学院学报,1996,15(2):153-157. XU Panlin,CHENG Shu,DAI Sujuan,et al. Experimental study on fully mechanized top coal caving mining under special railway line in mining area[J]. Journal of Shandong Institute of Mining and Technology,1996,15(2):153-157.

[5] 严茂荣. 大水头煤矿铁路下综放开采岩层与地表移动规律研究[D]. 西安:西安科技大学,2008.

[6] 王红丽. 山西常村煤矿铁路压煤开采技术分析[J]. 资源信息与工程,2018,33(3):79-80. WANG Hongli. Technical analysis of railway compression mining in Changcun coal mine,Shanxi Province[J]. Resource Information and Engineering,2018,33(3):79-80.

[7] 高超. 东坡煤矿特厚煤层综放开采地表移动规律研究[D]. 北京:煤炭科学研究总院,2014.

[8] 刘义新. 厚松散层下深部开采覆岩破坏及地表移动规律研究[D]. 北京:中国矿业大学(北京),2010.

[9] 谭志祥,王宗胜,李运江,等. 高强度综放开采地表沉陷规律实测研究[J]. 采矿与安全工程学报,2008,25(1):59-62. TAN Zhixiang,WANG Zongsheng,LI Yunjiang,et al. Field research on ground subsidence rules of intensive ful-ly-mechanized mining by sublevel caving[J]. Journal of Mining and Safety Engineering,2008,25(1):59-62.

[10] 吴侃,周鸣. 矿区沉陷预测预报系统[M]. 徐州:中国矿业大学出版社,1999:137-148.

[11] 尹增德. 采动覆岩破坏特征及其应用研究[D]. 青岛:山东科技大学,2007.

[12] 苏静,姬祥,李文璐. 厚松散层矿区综放开采地表沉降规律研究[J]. 煤炭工程,2018,50(3):104-107. SU Jing,JI Xiang,LI Wenlu. Research on surface subsidence law for fully-mechanized to thick unconsolidated formation[J]. Coal Engineering,2018,50(3):104-107.

[13] 汤铸,李树清,黄寿卿,等. 厚松散层矿区综放开采地表移动变形规律[J]. 煤矿安全,2018,49(6):210-212. TANG Zhu,LI Shuqing,HUANG Shouqing,et al. Research on surface movement low of fully-mechanized top coal caving thick unconsolidated layers[J]. Safety in Coal Mines,2018,49(6):210-212.

[14] 戴华阳,王金庄. 非充分开采地表移动预计模型[J]. 煤炭学报,2003,28(6):583-587. DAI Huayang,WANG Jinzhuang. Prediction model of surface movement in incomplete mining[J]. Journal of China Coal Society,2003,28(6):583-587.

[15] 杜锋,白海波. 薄基岩综放采场直接顶结构力学模型分析[J]. 煤炭学报,2013,38(8):1331-1337. DU Feng,BAI Haibo. Mechanical analysis of immediate roof in fully mechanized with thin bed rock[J]. Journal of China Coal Society,2013,38(8):1331-1337.

[16] 鞠金峰,许家林,王庆雄. 大采高采场关键层"悬臂梁"结构运动型式及对矿压的影响[J]. 煤炭学报,2011,36(12):2115-2120. JU Jinfeng,XU Jialin,WANG Qingxiong. Cantilever structure moving type of key strata and its influence on ground pressure in large mining height workface[J]. Journal of China Coal Society,2011,36(12):2115-2120.

[17] 国家安全监管总局等. 建筑物、水体、铁路及主要井巷煤柱留设与压煤开采规范[S]. 北京:煤炭工业出版社,2017.

[18] 李京涛. 采空区铁路路基的维护[J]. 河北企业,2010(5):96. LI Jingtao. Maintenance of railway subgrade in goaf[J]. Hebei Enterprise,2010(5):96.

[19] 李秋辉. 铁路下采煤的技术措施[J]. 煤炭技术,2008,27(6):84-85. LI Qiuhui. Technical measures for mining coal under railway[J]. Coal Technology,2008,27(6):84-85.

[20] 王晋超. 铁路荷载下采空区"活化"规律及稳定性评价[D]. 青岛:青岛理工大学,2016.