煤矿巷道底板锚固孔钻渣尺寸特征实验研究

doi:10.13722/j.cnki.jrme.2019.0855

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摘要长期以来，煤矿巷道底板小孔径锚固孔钻进排渣困难是高质量成孔的瓶颈问题。因此，明晰钻渣尺寸分布规律对排渣的顺利进行至关重要。利用理论分析及实验室实验方法研究两翼式钻头在底板锚固孔钻进过程中钻渣的尺寸特征。结果表明：底板岩石强度及钻头刀翼间距是影响钻渣平均尺寸的主要因素，岩石的单轴抗压强度越高，钻进过程中产生的大粒径钻渣比例越大，从而造成了钻渣整体的平均尺寸随岩石单轴抗压强度的增加而增加；钻机动力参数(转速及钻速)对钻渣平均尺寸不会产生规律性影响。此外，钻渣平均尺寸随着钻头刀翼间距的增加而增加。因此，通过减小两翼式钻头刀翼间距可以降低钻渣平均尺寸，在钻进至较坚硬地层时，由于大尺寸钻渣产出量增加，应及时调整排渣动力参数，保证钻渣顺利排出。研究成果可为底板锚固孔钻进过程中钻具结构优化以及排渣参数设定提供一定理论依据。

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	刘少伟1
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	付孟雄1
	贾后省1
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	张伟光3

关键词 ：采矿工程, 锚杆支护, 底臌控制, 底板锚固孔, 钻渣尺寸

Abstract：The difficulty of rock fragment discharging from small diameter boreholes drilled at a downward angle in coal mine roadway floors has long been the major factor that reduces borehole quality. Therefore，fuller understanding of rock fragment sizes is absolutely essential to fragments discharging. In this study，theoretical analysis and laboratory experiments were adopted to analyze the size characteristics of rock fragments formed by two-wring drill bits. The results indicate that the strength of rocks and bit blade spacing are the two keys factors that affect the mean fragment size. The proportion of larger-size fragments increases with the uniaxial compressive strength，which makes the mean fragment size increase with the uniaxial compressive strength as well. The rotation rate and drilling rate have no influence on the mean fragment size. In addition，the mean fragment size increases with the blade spacing. Therefore，the mean fragment size can be reduced by reducing the spacing between two wings. When drilling through high strength rock strata，the mean size of the fragments will increase and the discharge power should be enhanced to prevent fragment discharge blockages. This paper may provide a theoretical basis for discharge power settings and drilling tool optimization.

Key words： mining engineering roof bolting floor heave control borehole in roadway floor rock fragment size

引用本文:

刘少伟1，2，3，付孟雄1，贾后省1，2，张伟光3. 煤矿巷道底板锚固孔钻渣尺寸特征实验研究[J]. 岩石力学与工程学报, 2020, 39(7): 1343-1355.
LIU Shaowei1，2，3，FU Mengxiong1，JIA Housheng1，2，ZHANG Weiguang3. Experimental study on the size characteristics of rock fragments during borehole drilling in coal mine roadway floors#br#. , 2020, 39(7): 1343-1355.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2019.0855 或 http://rockmech.whrsm.ac.cn/CN/Y2020/V39/I7/1343

[27]	GLENN L A，CHUDNOVSK Y A. Strain energy effects on dynamic fragmentation[J]. Journal of Applied Physics，1986，59：1 379- 1 380.
[37]	Nishimatsu Y. The mechanics of rock cutting[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1972，9：261-270.
[2]	晏玉书. 我国煤矿软岩巷道围岩控制技术现状及发展趋势[C]// 中国煤矿软岩巷道支护理论与实践. 北京：中国矿业大学出版社，1996：1-17.(YAN Yushu. Status quo and development trend of surrounding rock control technology for soft rock roadway in coal mine of China[C]// Theory and Practice of Soft Rock Roadway Support in Coal Mine of China. Beijing：China University of Mining and Technology Press，1996：1-17.(in Chinese))
[5]	刘泉声，康永水，白运强. 顾桥煤矿深井岩巷破碎软弱围岩支护方法探索[J].岩土力学，2011，32(10)：3 097-3 104.(LIU Quansheng，KANG Yongshui，BAI Yunqiang. Reaseach on supporting method for deep rock roadway with broken and soft surrounding rock in Guqiao coal mine[J]. Rock and Soil Mechanics，2011，32(10)：3 097-3 104.(in Chinese))
[7]	刘少伟，冯友良，刘栋梁. 煤巷层状顶板岩石钻进动态响应特性数值试验[J]. 岩石力学与工程学报，2014，33(增1)：3 170-3 176. (LIU Shaowei，FENG Youliang，LIU Dongliang. Numerical experiments of dynamic response characteristics of rock drilling on stratified roof in coal roadway[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(Supp.1)：3 170-3 176.(in Chinese))
[9]	BASARIR H，SUN Y，LI G C. Gateway stability analysis by global-local modeling approach[J]. International Journal of rock Mechanics and Mining Sciences，2019，113：31-40.
[10]	JIA H S，WANG L Y，LIU S W. Design of multi-layer coupling support and span of setup entry roof at depth[J]. Arabian Journal of Geosciences，2018，11：1-11.
[12]	康红普，王金华，林健. 高预应力强力支护系统及其在深部巷道中的应用[J]. 煤炭学报，2007，32(12)：1 233-1 238.(KANG Hongpu，WANG Jinhua，LIN Jian. High pretensioned stress and intensive bolting system and its application in deep roadways[J]. Journal of China Coal Society，2007，32(12)：1 233-1 238.(in Chinese))
[15]	刘泉声，黄诗冰，崔先泽，等. 深井煤矿硐室底臌控制对策与监测分析[J]. 岩土力学，2015，36(12)：3 506-3 515.(LIU Quansheng，HUANG Shibing，CUI Xianze，et al. Control measures and monitoring analysis for floor heave of the chamber in deep coal mine[J]. Rock and Soil Mechanics，2015，36(12)：3 506-3 515.(in Chinese))
[17]	刘泉声，肖虎，卢兴利，等. 高地应力破碎软岩巷道底臌特性及综合控制对策研究[J]. 岩土力学，2012，33(6)：1 703-1 710. (LIU Quansheng，XIAO Hu，LU Xingli，et al. Research on floor heave characteristics of broken soft rocks with high geostressand its comprehensive control measures[J]. Rock and Soil Mechanics，2012，33(6)：1 703-1 710.(in Chinese))
[20]	TANGSB，TANGCA. Numerical studies on tunnel floor heave in swelling ground under humid conditions[J]. International Journal of Rock Mechanics and Mining Sciences，2012，55(1)：139-150.
[22]	杨生彬，何满潮，王晓义，等. 孔庄矿深部软岩大巷底臌机制及控制对策研究[J]. 中国矿业，2007，(4)：77-80.(YANG Shengbin，HE Manchao，WANG Xiaoyi，et al. Study on mechanism and control of deep soft rock roadway floor heavy in Kongzhuang coal mine[J]. China Mining Magazine，2007，(4)：77-80.( in Chinese))
[30]	赵志红，郭建春，王辰龙. 层内爆炸压裂岩石破碎颗粒尺寸预测与影响因素分析[J]. 石油钻采工艺，2011，33(3)：58-61.(ZHAO Zhihong，GUO Jianchun，WANG Chenlong. Rock particle size prediction model of in-fracture explosive fracturing and influencing factor analysis[J]. Oil Drilling and Production Technology，2011，33(3)：58-61.(in Chinese)
[32]	李德建. 花岗岩岩爆试验碎屑分形特征分析[C]// 第十一次全国岩石力学与工程学术大会论文集[C]// 北京：中国岩石力学与工程学会，2010：10.(LI Dejian. Analysis of fractal characteristics of debris in granite rock burst test[C]// Proceedings of the 8th National Conference on Rock Mechanics and Engineering. Beijing：Chinese Society of Rock Mechanics and Engineering，2010：10.(in Chinese))
[40]	Hou T X，Xu Q，Yang X G，Lu P Y，Zhou J W. Experimental study of the fragmentation characteristics of brittle rocks by the effect of a free fall round hammer[J]. International Journal of Fracture，2015，194：169-185.
[3]	PATERSON M S. Experimental deformation and faulting in Wombeyanmarble[J]. Geological Society of America Bulletin，1958，69：465-467.
[13]	王金华. 我国煤巷锚杆支护技术的新发展[J]. 煤炭学报，2007，32(2)：113-118.(WANG Jinhua. New development of rock bolting technology for coal roadway in China[J]. Journal of China Coal Society，2007，32(2)：113-118.(in Chinese))
[23]	何满潮，王树仁. 大变形数值方法在软岩工程中的应用[J]. 岩土力学，2004，25(2)：185-188.(HE Manchao，WANG Shuren. Application of numerical method of largedeformation to soft rock engineering[J]. Rock and Soil Mechanics，2004，25(2)：185-188.(in Chinese))
[24]	GRADY D E. Local inertial effects in dynamic fragmentation[J]. Journal of Applied Physic，1982，53：322-325.
[25]	GRADY D E. Fragment size prediction in dynamic fragmentation[J]. AIP Conference Proceeding，1982，78：456-459.
[35]	李玮，闫铁. 基于分形岩石破碎比功方程的钻井优化[J]. 石油学报，2011，32(4)：693-696.(LI Wei，YAN Tie. Drilling optimization based on the fractal crushing work ratio equation of rocks[J]. Acta Petrolei Sinica，2011，32(4)：693-696.(in Chinese))
[8]	刘少伟，尚鹏翔，张辉，等. 煤矿软弱围岩巷道锚杆孔钻扩机制与试验[J]. 煤炭学报，2015，40(8)：1 753-1 760.(LIU Shaowei，SHANG Pengxiang，ZHANG Hui，et al. Reaming mechanism of bolt hole in entry within weak surrounding rock[J]. Journal of China Coal Society，2015，40(8)：1 753-1 760.(in Chinese))
[18]	付建军，刘泉声，赵海斌，等. 煤矿深部巷道底臌发生机制及防治对策研究[J]. 矿冶工程，2010，30(5)：21-26.(FU Jianjun，LIU Quansheng，ZHAO Haibin，et al. Mechanism and countermeasure for floor heave of deep coal mine roadways[J]. Mining and Metallurgical Engineering，2010，30(5)：21-26.(in Chinese))
[28]	ZHOU F H，MOLINARIJ F，RAMESH K T. Effects of material properties on the fragmentation of brittle materials[J]. International Journal of Fracture，2006，139：169-196.
[38]	Li Z T，Itakura K. An analytical drilling model of drag bits for evaluation of rock strength[J]. Janp Geotechni Soci，2012，52(2)：216-227.
[4]	何满潮，谢和平，彭苏萍，等. 深部开采岩体力学研究[J]. 岩石力学与工程学报，2005，24(16)：2 803-2 813.(HE Manchao，XIE Heping，PENG Suping，et al. Study on rock mechanics in deep mining engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(16)：2 803-2 813.(in Chinese))
[14]	OLDENGOTT I M. 巷道底臌的防治[M]. 王茂松译. 北京：煤炭工业出版社，1985：1-40.( Oldengott I M. The control of roadway floor heavy[M]. Translated by WANG Maosong. Beijing：China Coal Industry Publishing House，1985：1-40.(in Chinese))
[34]	闫铁，张杨，杜树明. 基于岩屑分形破碎特征的钻井工程能效评价模型[J]. 岩石力学与工程学报，2014，33(增1)：3 157-3 163. (YAN Tie，ZHANG Yang，DU Shuming. Energy efficiency evaluation model in drilling based on fractal fragmentation characteristics of rock cutting[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(Supp.1)：3 157-3 163.(in Chinese))
[6]	KANG Y S，LIU Q S，XI H L. Numerical analysis of THM coupling of a deeply buried roadway passing through composite strata and dense faults in a coal mine[J]. Bulletin of Engineering Geology and the Environment，2014，73：77-86.
[16]	刘泉声，刘学伟，黄兴，等. 深井软岩破碎巷道底臌原因及处置技术研究[J]. 煤炭学报，2013，38(4)：566-571.(LIU Quansheng，LIU Xuewei，HUANG Xing，et al. Research on the floor heave reasons and supporting measures of deep soft-fractured rock roadway[J]. Journal of China Coal Society，2013，38(4)：566-571.(in Chinese))
[26]	GLENN L A，GOMMERSTADT B Y，CUDNOVSK Y A. A fracture mechanics model of fragmentation[J]. Journal of Applied Physic，1986，60：1 224-1 226.
[36]	闫铁，李玮，毕雪亮，等. 一种基于破碎比功的岩石破碎效率评价新方法[J]. 石油学报，2009，30(2)：291-294.(YAN Tie，LI We，BI Xueliang，et al. A new evaluation method for rock-crushing efficiency based on crushing work ratio[J]. Acta Petrolei Sinica，2009，30(2)：291-294.(in Chinese))
[1]	何满潮. 深部开采工程岩石力学现状及其展望[C]// 第八次全国岩石力学与工程学术大会论文集. 北京：中国岩石力学与工程学会，2004：7.(HE Manchao. Present situation and prospect of rock mechanics in deep mining engineering[C]// Proceedings of the 8th National Conference on Rock Mechanics and Engineering. Beijing：Chinese Society of Rock Mechanics and Engineering，2004：7.(in Chinese))
[11]	孙志勇，林健，王子越，等. 大采高工作面锚杆支护巷道局部冒顶机制研究[J]. 煤炭科学技术，2019，(4)：78-82.(SUN Zhiyong，LIN Jian，WANG Ziyue，et al. Research on localized roof falling mechanism of bolt supporting roadway in large mining height working face[J]. Coal Science and Technology，2019，(4)：78-82.(in Chinese))
[21]	杨生彬，何满潮，刘文涛，等. 底角锚杆在深部软岩巷道底臌控制中的机制及应用研究[J]. 岩石力学与工程学报，2008，27(增1)：2 913-2 920.(YANG Shengbin，HE Manchao，LIU Wentao，et al. Mechanics and application research on the floor anchor to control the floor heavy of deep soft rock[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(Supp.1)：2 913-2 920.(in Chinese))
[31]	张立国，李守巨，付增绵，等. 炸药破碎岩石能量利用率的研究[J]. 辽宁工程技术大学学报：自然科学版，1998，(2)：133-137.(ZHANG Liguo，LI Shouju，FU Zengmian，et al. Study on energy utilization rate of rock broken by explosive[J]. Journal of Liaoning Technical University：Nature Science，1998，(2)：133-137.(in Chinese))
[19]	CHANG Q L，ZHOU H Q，XIE Z H. Anchoring mechanism and application of hydraulic expansion bolts used in soft rock roadway floor heave control[J]. International Journal of Mining Science and Technology，2013，23：323-328.
[29]	赵志红，郭建春. 层内爆炸压裂岩石破碎颗粒尺寸的预测模型[J]. 爆炸与冲击，2011，31(6)：669-672.(ZHAO Zhihong，GUO Jianchun. A size prediction model for rock particles generated by an explosion in fractured rock[J]. Explosion and Shock Waves，2011，31(6)：669-672.( in Chinese))
[33]	李德建，贾雪娜，苗金丽，等. 花岗岩岩爆试验碎屑分形特征分析[J]. 岩石力学与工程学报，2010，29(增1)：3 280-3 289.(LI Dejian，JIA Xuena，MIAO Jinli，et al. Analysis of fractal characteristics of fragment from rock burst test of granite[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(Supp.1)：3 280-3 289.(in Chinese))
[39]	刘晓明，熊力，刘建华，等. 基于能量耗散原理的红砂岩崩解机制研究[J]. 中南大学学报：自然科学版，2011，42(10)：3 143- 3 149.(LIU Xiaoming，Xiong Li，Liu Jianhua，et al. Slacking mechanism of red sandstone based on energy dissipation principle[J]. Journal of Central South University：Science and Technology，2011，42(10)：3 143-3 149.(in Chinese))