- 无标题文档
查看论文信息

论文中文题名:

 曙光矿1226运输巷爆破切顶沿空留巷技术    

姓名:

 赵柯    

学号:

 17303213005    

保密级别:

 公开    

论文语种:

 chi    

学科代码:

 085218    

学科名称:

 工学 - 工程 - 矿业工程    

学生类型:

 硕士    

学位级别:

 工程硕士    

学位年度:

 2021    

培养单位:

 西安科技大学    

院系:

 能源学院    

专业:

 矿业工程    

研究方向:

 岩体力学与岩层控制    

第一导师姓名:

 贠东风    

第一导师单位:

 郝先勇    

论文提交日期:

 2021-06-15    

论文答辩日期:

 2021-06-03    

论文外文题名:

 Technology of Shuguang Mine 1226 Transport Lane Blasting Cutting Top Along the Empty Stay Lane    

论文中文关键词:

 切顶卸压 ; 支护设计 ; 数值模拟 ; 参数优化    

论文外文关键词:

 Top relief ; Supporting design ; numerical simulation ; Parameter optimization    

论文中文摘要:

       煤炭作为能源开发和应用的基础资源,不论是在中国还是国际社会都具有不可替代的战略地位。但是,随着浅部易采的煤炭资源被大规模开采,煤炭资源开采逐渐向深部转移,增加开采深度、资源短缺、难以控制矿压等问题便逐渐显露出来,急需一种新的工艺来实现高产高效的开采。

       切顶卸压无煤柱自成巷技术在技术手段上摒弃了以往采区留设区段煤柱或采用巷旁充填体来隔断应力传递,支护留巷。该技术在一定程度上节省了大量煤炭资源、且减少了巷道的掘进量,对矿山煤炭资源的开采前景具有较高的研究价值。为了增强切顶卸压无煤柱留设技术的普适性,深化切顶卸压理论研究。本学位论文以曙光煤矿1226运输巷为例,对曙光煤矿1226运输巷复合坚硬顶板条件下的切顶卸压参数及矿压显现规律展开研究。结果表明:在直接顶破碎矸石未承压时,将巷道老顶简单地看作一个短悬臂梁结构,通过理论分析计算,得出最佳切顶角度15°和切顶高度7.5m;通过数值模拟验证了不同切顶角度及切顶高度下的巷道矿压显现情况,切顶高度7.5m、切顶角度15°时效果最好,与理论计算基本吻合;通过现场实测数据观测可知,在切顶高度7.5m、切顶角度15°的切顶条件下,巷道支护主要分为超前支护区(工作面前方30~50m)、架后临时支护区(工作面后方0~200m)及稳定区(工作面后方200m后);通过采用巷道表面位移、锚索及巷道单体液压支柱受力等监测手段,可知切顶卸压后,围岩压力和顶板下沉量均明显减小,在沿空留巷巷道稳定后,顶底板移近量在300mm左右。

       论文研究不仅解决了曙光矿掘巷速度慢,掘进成本高,接替紧张等问题,也为其他相似条件矿井的使用及无煤柱切顶自成巷技术的推广做出了一定的贡献。

论文外文摘要:

       As the basic resource for energy development and application, coal has an irreplaceable strategic position in China and the international community. However,with the large-scale exploitation of shallow coal resources, coal resources are gradually transferred to the deep, increasing the depth of mining, resource shortage, difficult to control the pressure and other issues will gradually emerge, the urgent need for a new process to achieve high-yield and efficient mining.

       The technology of roof cutting and pressure relief without coal pillar self-contained roadway abandons the previous section coal pillar or the use of roadside filling body to isolate stress transfer and support roadway retention. The technology saves a lot of coal resources to a certain extent and reduces the amount of roadway excavation, which has high research value for the mining prospect of coal resources in mines. In order to enhance the universality of non-pillar retaining technology for roof cutting pressure relief, the theoretical research on roof cutting pressure relief is deepened. In this paper, taking 1226 transport roadway in Shuguang Coal Mine as an example, the roof cutting pressure relief parameters and strata behavior law of 1226 transport roadway in Shuguang Coal Mine under the condition of composite hard roof are studied. results showed:When the direct roof crushed gangue is not under pressure, the main roof of the roadway is simply regarded as a short cantilever beam structure. Through theoretical analysis and calculation, the optimal roof cutting angle is 15°and the roof cutting height is 7.5 m. Through numerical simulation, the mine pressure behavior of roadway under different cutting angle and cutting height is verified. When the cutting height is 7.5 m and the cutting angle is 15°,the effect is the best, which is basically consistent with the theoretical calculation. Through the observation of field measured data, under the condition of roof cutting height 7.5 m and roof cutting angle, roadway support is mainly divided into advanced support area (30~50m ahead of working face ), temporary support area behind frame ( 0 ~ 200 m behind working face ) and stable area ( 200m behind working face ). By using use of monitoring methods such as roadway surface displacement, anchor cable and stress of single hydraulic prop in roadway, it can be seen that after roof cutting and pressure relief, the surrounding rock pressure and roof subsidence are significantly reduced. After thestability of gob-side entry retaining roadway, the displacement of roof and floor is about 300 mm.

        This paper not only solves the problems of slow driving speed, high driving cost and tight replacement in Shuguang Mine, but also makes some contributions to the use of other similar conditions and the popularization of the technology of cutting roof without coal pillar.

参考文献:

[1] 国家煤矿安全监察局编.中国煤炭工业年鉴[M].北京:煤炭工业出版社,2010.

[2] 张国锋,何满潮,俞学平,等.白皎矿保护层沿空切顶成巷无煤柱开采技术研究[J].采矿与安全工程学报,2011,28(04):511-516.

[3] 宋润权,谢家鹏.切顶卸压技术在工作面及沿空巷道维护中的应用[J].煤炭科技,2012(03):52-54.

[4] 王巨光,王刚.切顶卸压沿空留巷技术探讨[J].煤炭工程,2012(01):24-26.

[5] 宋彦波.顶板预裂法留巷技术[J].矿山压力与顶板管理,1997(21):159-160+234.

[6] 柏建彪,周华强,侯朝炯,等.沿空留巷巷旁支护技术的发展[J].中国矿业大学学报,2004(02):59-62.

[7] 唐建新,胡海,涂兴东,等.普通混凝土巷旁充填沿空留巷试验[J].煤炭学报,2010,35(09):1425-1429.

[8] 韩昌良,张农,李桂臣,等.大采高沿空留巷巷旁复合承载结构的稳定性分析[J].岩土工程学报,2014,36(05):969-976.

[9] Ma Xingen,He Manchao,Sun Jiandong,et al.Research on the Design of Roof Cutting Parameters of Non Coal Pillar Gob-side Entry Retaining Mining with Roof Cutting and Pressure Releasing[J].Geotechnical and Geological Engineering,2019,37(3):1169-1184.

[10] 何满潮,宋振骐,王安,等.长壁开采切顶短壁梁理论及其110工法—第三次矿业科学技术变革[J].煤炭科技,2017(01):1-9+13.

[11] 陈勇.沿空留巷围岩结构运动稳定机理与控制研究[D].徐州:中国矿业大学,2012.

[12] 刘红岗,贺永年,徐金海,等.深井煤巷钻孔卸压技术的数值模拟与工业试验[J].煤炭学报,2007(01):33-37.

[13] 汤朝均,盛建发.切顶卸压护巷技术研究与应用[J].煤炭技术,2015,34(8).

[14] 孙晓明,刘鑫,梁广峰,等.薄煤层切顶卸压沿空留巷关键参数研究[C].岩石力学与工程学报,2014,33(07),1449-1456.

[15] 张杰,韩庆福,丁自伟,等.三软煤层坚硬老顶深孔预裂爆破试验[J].西安科技大学学报,2020,40(06):988-995.

[16] 赵一鸣,张农,郑西贵,等.千米深井厚硬顶板上覆沿空留巷围岩结构优化[J].采矿与安全工程学报,2015,32(5):714-720.

[17] 何富连,陈建余,邹喜正,等.综放沿空巷道围岩卸压控制研究[J].煤炭学报,2000(06):589-592.

[18] 王维维,李凤义,兰永伟.切顶卸压沿空留巷技术研究及应用[J].黑龙江科技大学学报,2014,24(1):20-23.

[19] 刘小强,张国锋.软弱破碎围岩切顶卸压沿空留巷技术[J].煤炭科学技术,2013(s2):133-134.

[20] 蒲文龙,张国华,毕业武.定向断裂切顶卸压窄煤柱沿空掘巷关键技术研究[J].工业安全与环保,2014,40(5):45-47.

[21] 万海鑫,张凯,陈冬冬,等.轿子山矿切顶卸压沿空留巷技术[J].煤矿安全,2014,45(12):85-88.

[22] 高魁,刘泽功,刘建等.深孔爆破在深井坚硬复合顶板沿空留巷强制放顶中应用[J].岩石力学与工程学报,2013,32(08):1588-1594.

[23] 郭鹏飞,张国锋,陶志刚.坚硬软弱复合顶板切顶卸压沿空留巷爆破技术[J].煤炭科学技术,2016,44(10):120-124.

[24] 王茂盛,王萌,都海龙.厚层坚硬顶板工作面沿空留巷技术[J],煤炭科学技术,2013,41(06):42-45.

[25] 邓广哲,王世斌,黄炳香.煤岩水压裂缝扩展行为特性研究[J].岩石力学与工程学报,2004(20):3489-3493.

[26] 谢和平,王家臣,陈忠辉,等.坚硬厚煤层综放开采爆破破碎顶煤技术研究[J].煤炭学报,1999,24(4):350-354.

[27] 王家臣,陈忠辉,白希军,等.坚硬厚煤层综放开采顶煤预爆破参数研究[J].煤,2000,9(3):1-4.

[28] 宋彦波.顶板预裂法留巷技术[J].矿山压力与顶板管理,1997,No3-4:156-158.

[29] 齐庆新.深孔断顶爆破防治冲击地压的理论与实践[J].岩石力学与工程学报,2007,26(增1):3522-3527.

[30] 李春睿,康立军,齐庆新,等.深孔爆破数值模拟及其在煤矿顶板弱化中的应用[J].2009,34(12):1632-1636.

[31] 周登辉,伍永平,解盘石.大倾角坚硬顶板深孔超前预爆破研究与应用[J].西安科技大学学报,2009,29(5):510-513.

[32] 王开,康天合,李海涛,等.坚硬顶板控制放顶方式及合理悬顶长度的研究[J].岩石力学与工程学报,2009,28(11):2320-2327.

[33] 王庆水.两硬条件下沿空留巷顶板结构及充填技术[J].煤炭科学技术,2013,41(7):26-30.

[34] 张平松,许时昂,郭立全,等.采场围岩变形与破坏监测技术研究进展及展望[J].煤炭科学技术,2020,48(03):14-48.

[35] 曹树刚.采场矿压结构模型探讨[J].重庆大学学报(自然科学版),1987(02):70-78.

[36] 崔梦庚.苏联矿压研究现状[J].矿山压力,1986(01):72-73+79.

[37] 史元伟.德国采矿技术的特点[J].徐煤科技,1997,(04):32-33.

[38] 龙炳煌,蒋大骅.受拉边倾斜梁抗剪强度的新研究[A].中国建筑学会建筑结构学术委员会、中国土木工程学会教育工作委员会、清华大学土木工程系.混凝土结构基本理论及应用第二届学术讨论会论文集(第二卷)[C].中国建筑学会建筑结构学术委员会、中国土木工程学会教育工作委员会、清华大学土木工程系:中国土木工程学会,1990:7.

[39] 张农,韩昌良,阚甲广,等.沿空留巷围岩控制理论与实践[J].煤炭学报,2014,39(8):1635-1641.

[40] 康红普,牛多龙,张镇,等.深部沿空留巷围岩变形特征与支护技术[J].岩石力学与工程学报,2010,29(10):1977-1987.

[41] 张东升,茅献彪,马文顶.综放沿空留巷围岩变形特征的试验研究[J].岩石力学与工程学报,2002,21(3):331-334.

[42] 王卫军,侯朝炯,柏建彪,等.综放沿空巷道顶煤受力变形分析[J].岩土工程学报,23(2):209-211.

[43] Liu Jiangwei,Liu Changyou,Yao Qiangling,et al.The position of hydraulic fracturing to initiate vertical fractures in hard hanging roof for stress relief[J].International Journal of Rock Mechanics and Mining Sciences,2020,132.

[44] Yin Jiadi,Fu Baojie,Zhang Hualei.Failure Mechanism and Control Technology for a Large-Section Roadway under Weakly Cemented Formation Condition[J].Geofluids,2020,2020(1):1-11.

[45] 蒋金泉,韩继胜,石永奎.巷道围岩结构稳定性与控制设计[M].北京市:煤炭工业出版社,1999.

[46] 韩昌良,张农,李桂臣,等.大采高沿空留巷巷旁复合承载结构的稳定性分析[J].岩土工程学报,2014,36(5):969-976.

[47] 谢文兵.综放沿空留巷围岩稳定性影响分析[J].岩石力学与工程学报,2004,23(18):3059-3065.

[48] 程志恒,齐庆新,孔维一,等.近距离煤层群下位煤层沿空留巷合理布置研究[J].采矿与安全工程学报,2015,32(03):453-458.

[49] 王腾,潘凡,李冬伟,等.卧龙湖煤矿沿空留巷巷旁充填技术应用[J].煤炭工程,2016,48(05):40-42+46.

[50] 姜鹏飞,张剑,胡滨.沿空留巷围岩受力变形特征及支护对策[J].采矿与安全工程学报,2016,33(01):56-62.

[51] 郭建伟,赵家巍.沿空留巷下位顶板破断规律与控制机理研究[J].采矿与安全工程学报,2012,29(06):802-807.

[52] 曹树刚,陈先哲,杨红运,等.沿空留巷巷旁控制技术及其适用条件分析[J].煤炭科学技术,2016,44(04):27-33.

[53] 曹树刚,王勇,邹德均,等.倾斜煤层沿空留巷力学模型分析[J].重庆大学学报,2013,36(05):143-150.

[54] 张自政,柏建彪,陈勇,等.浅孔爆破机制及其在厚层坚硬顶板沿空留巷中的应用[J].岩石力学与工程学报,2016,35(增1):3008-3017.

[55] Zhang Xingyu,Hu Jinzhu,Yang Jun,et al.Innovative approach based on roof cutting by energy-gathering blasting for protecting roadways in coal mines[J].Tunnelling and Underground Space Technology incorporating Trenchless Technology Research,2020,99.

[56] 单仁亮,黄博,燕发源,等.中兴矿沿空留巷工作面矿压显现规律研究[J].煤炭工程,2015,47(12):74-77.

[57] 李胜,范超军,罗明坤,等.二次采动下沿空留巷围岩变形及其控制研究[J].中国安全生产科学技术,2015,11(07):49-55.

[58] 李胜,李军文,范超军,等.综放沿空留巷顶板下沉规律与控制[J].煤炭学报,2015,40(09):1989-1994.

[59] Bai Qinsheng,Tu Shihao,Wang Fangtian,et al.Field and numerical investigations of gateroad system failure induced byhard roofs in a longwall top coal caving face[J].International Journal of Coal Geology,2017(173):176-199.

[60] Shen Wenlong,Bai Jianbiao,Wang Xiangyu,et al.Response and control technology for entry loaded by mining abutmentstress of a thick hard roof [J].International Journal of Rock Mechanics & Mining Sciences,2016(90):26-34.

[61] J.M.Galvin,B.K.Hebblewhite.Australian coal pillar performance[J].Report University of New South Male,1996(03):102-106.

[62] Yang Jiping,Cao Shenggen,Li Xuehua.Failure laws of narrow pillar and asymmetric control technique of gob-side entry driving in island coal face[J].International Journal of Mining Science and Technology,2013(23):267-272.

[63] 华心祝,刘啸,黄志国,等.动静耦合作用下无煤柱切顶留巷顶板成缝与稳定机理[J].煤炭学报,2020,45(11):3696-3708.

[64] 冯国瑞,任玉琦,王朋飞,等.厚煤层综放沿空留巷巷旁充填体应力分布及变形特征研究[J].采矿与安全工程学报,2019,36(06):1109-1119.

[65] 王炯,朱道勇,宫伟力,等.切顶卸压自动成巷岩层运动规律物理模拟实验[J].岩石力学与工程学报,2018,37(11):2536-2547.

[66] 张盛,王小良,吴自强,等.切顶卸压沿空留巷爆破孔关键参数选择及留巷效果现状分析[J].河南理工大学学报(自然科学版),2019,38(06):1-9.

[67] 刘增辉,娄嵩,孟祥瑞,等.近距离煤层开采对卸压区采场围岩应力演化过程研究[J].采矿与安全工程学报,2016,33(01):102-108.

[68] 花锦波,刘娜,郑西贵.浅埋煤层无墙体沿空留巷及切顶组合支架试验研究[J].煤炭科学技术,2017,45(03):14-19.

[69] Hua Jinbo,Zheng Xigui,Feng Xiaowei.Controlling Mechanism of Gob-Side Entry Retaining without Backfilling Wall and its Application[J].Electronic Journal of Geotechnical Engineering,2014,19(Q):4321-4332.

[70] Zhang Lin,Zheng Xigui,Hua Jinbo.Entry-side Supports Stability of GER without Pillars[J].Electronic Journal of Geotechnical Engineering,2014,19(12):4751-4762.

[71] 苏超,弓培林,康红普,等.深井临空高应力巷道切顶卸压机理研究[J].采矿与安全工程学报,2020,37(06):1104-1113.

[72] 王宇,涂敏,付宝杰,等.深井侧向采动应力分布规律及沿空巷道支护[J].采矿与岩层控制工程学报,2020,2(03):40-47.

[73] 张俊文,袁瑞甫,李玉琳.厚泥岩复合顶板煤巷围岩控制技术研究[J].岩石力学与工程学报,2017,36(01):152-158.

[74] 王鹏,严国超,贺新.伊田煤业沿空留巷底鼓特征及控制方案研究[J].煤炭技术,2018,37(11):59-61.

[75] 段强强. 金谷矿10902工作面运输平巷切顶沿空留巷技术[D].中国矿业大学,2020.

中图分类号:

 TD353    

开放日期:

 2021-06-17    

无标题文档

   建议浏览器: 谷歌 火狐 360请用极速模式,双核浏览器请用极速模式