浅孔爆破机制及其在厚层坚硬顶板沿空留巷中的应用

doi:10.13722/j.cnki.jrme.2014.1442

摘要
图/表
参考文献(26)
相关文章 (15)

全文: PDF (1915 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要为了预防坚硬顶板沿空留巷顶板大面积来压等动力灾害，结合新超煤矿坚硬顶板沿空留巷的工程背景和地质条件，采用理论分析的方法，阐述浅孔爆破的分区特征及各自的计算式；建立坚硬顶板沿空留巷切顶力学模型，给出在爆破切落直接顶的条件下巷旁充填体切落基本顶的切顶阻力计算式；采用LS-DYNA3D数值计算软件建立浅孔爆破模型，分析浅孔爆破有效应力演化和传播规律，结合理论计算确定浅孔爆破的相关参数。提出浅孔爆破切落直接顶，高水材料构筑巷旁充填体切落上位基本顶的坚硬顶板控制技术，并采用锚杆支护配合单体液压支柱的巷内支护技术。现场应用及矿压监测表明，该技术有效地控制了沿空留巷围岩变形。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	张自政1
	2
	柏建彪1
	2
	陈勇2
	郝胜鹏1
	2

关键词 ：采矿工程, 浅孔爆破, 坚硬顶板, 沿空留巷, 切顶卸压, 巷旁充填

Abstract：In order to avoid large area roof weighting and other dynamic disasters for gob-side entry retaining with thick and hard roof，combined with geological conditions and engineering practice of gob-side entry retaining with hard roof in Xinchao Colliery，this paper uses theoretical analysis to expound the zone characteristics of shallow-hole blasting and gives out calculation formula of zones respectively. Also the numerical calculation software of LS-DYNA3D is used to establish a model for shallow-hole blasting，analyze the evolution law of the effective stress and confirm relevant parameters of shallow-hole blasting with theoretical calculation results. Based on these research results，control countermeasures have been proposed，which include shallow-hole blasting technology for immediate roof caving，roadside backfill body construction technology with high water material for main roof caving，and road-in support technology of combination bolt support with hydraulic prop support. The field practice and observations show that the application of shallow-hole blasting technology has achieved an expected effects for ground rock control

Key words： mining engineering shallow-hole blasting hard roof gob-side entry retaining roof cutting and pressure relief roadside backfill

引用本文:

张自政1，2，柏建彪1，2，陈勇2，郝胜鹏1，2. 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(S1): 3008-3017.
ZHANG Zizheng1，2，BAI Jianbiao1，2，CHEN Yong2，HAO Shengpeng1，2. Shallow-hole blasting mechanism and its application for gob-side entry retaining with thick and hard roof. , 2016, 35(S1): 3008-3017.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2014.1442 或 https://rockmech.whrsm.ac.cn/CN/Y2016/V35/IS1/3008

[1] 孙恒虎，赵炳利. 沿空留巷的理论与实践[M]. 北京：煤炭工业出版社，1993：3–13.(SUN Henghu，ZHAO Bingli. Surrounding rock control of entry driven along next goaf[M]. Beijing：China Coal Industry Publishing House，1993：3–13.(in Chinese))

[2] 刘坤，张晓明，李家卓，等. 薄煤层坚硬顶板工作面沿空留巷技术实践[J]. 煤炭科学技术，2011，39(4)：17–20.(LIU Kun，ZHANG Xiaoming，LI Jiazhuo，et al. Practices on gateway retaining along goaf side in thin seam with hard roof[J]. Coal Science and Technology，2011，39(4)：17–20.(in Chinese))

[3] 邓月华，唐建新，朱祥可，等. 缓倾斜中厚煤层混凝土沿空留巷工业试验[J]. 西南交通大学学报，2011，46(3)：523–528.(DENG Yuehua，TANG Jianxin，ZHU Xiangke，et al. Industrial test of concrete packing for gob-side entry retained in gently-inclined medium- thickness coal seam[J]. Journal of Southwest Jiaotong University，2011，46(3)：523–528.(in Chinese))

[4] 华心祝. 我国沿空留巷支护技术发展现状及改进建议[J]. 煤炭科学技术，2006，34(12)：78–81.(HUA Xinzhu. Development status and improved proposals on gob-side entry retaining support technology in China[J]. Coal Science and Technology，2006，34(12)：78–81.(in Chinese))

[5] 郭育光，柏建彪，侯朝炯. 沿空留巷巷旁充填体主要参数研究[J]. 中国矿业大学学报，1992，21(4)：1–11.(GUO Yuguang，BAI Jianbiao，HOU Chaojiong. Study on the main parameters of gateside packs in gateways maintained along gob-edges[J]. Journal of China University of Mining and Technology，1992，21(4)：1–11.(in Chinese))

[6] 布铁勇，冯光明，贾凯军. 大采高综采沿空留巷巷旁充填支护技术[J]. 煤炭科学技术，2010，38(11)：41–44.(BU Tieyong，FENG Guangming，JIA Kaijun. Gateway side backfilling support technology of goaf side gateway in fully mechanized high cutting longwall mining face[J]. Coal Science and Technology，2010，38(11)：41–44.(in Chinese))

[7] 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)：1 977–1 987.(KANG Hongpu，NIU Duolong，ZHANG Zhen，et al. Deformation characteristics of surrounding rock and supporting technology of gob-side entry retaining in deep coal mine[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(10)：1 977–1 987.(in Chinese)

[8] 陈勇，柏建彪，王襄禹，等. 沿空留巷巷内支护技术研究与应用[J]. 煤炭学报，2012，37(6)：903–910.(CHEN Yong，BAI Jianbiao，WANG Xiangyu，et al. Support technology research and application inside roadway of gob-side entry retaining[J]. Journal of China Coal Society，2012，37(6)：903–910.(in Chinese))

[9] 马立强，张东升，陈涛，等. 综放巷内充填原位沿空留巷充填体支护阻力研究[J]. 岩石力学与工程学报，2007，26(3)：544–550. (MA Liqiang，ZHANG Dongsheng，CHEN Tao，et al. Study on packing body supporting resistance of enter-in packing for in-situ gob-side entry retaining in fully-mechanized top-coal caving mining face[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(3)：544–550.(in Chinese))

[10] 谢文兵，笪建原，冯光明. 综放沿空留巷围岩控制机理[J]. 中南大学学报：自然科学版，2004，35(4)：657–661.(XIE Wenbing，DA Jianyuan，FENG Guangming. Mechanism of controlling surrounding rock around gob-side entry retaining in top-coal caving mining face[J]. Journal of Central South University：Science and Technology，2004，35(4)：657–661.(in Chinese))

[11] ZHANG Z Z，BAI J B，CHEN Y，et al. An innovative approach for gob-side entry retaining in highly gassy fully-mechanized longwall top-coal caving[J]. International Journal of Rock Mechanics and Mining Sciences，2015，80(1)：1–11.

[12] 侯朝炯，易宏伟，柏建彪，等. 高水灰渣速凝材料巷旁充填沿空留巷的试验研究[J]. 煤炭科学技术，1995，23(2)：2–5.(HOU Chaojiong，YI Hongwei，BAI Jianbiao，et al. High moisture quick setting ash material for mine roadway backfill[J]. Coal Science and Technology，1995，23(2)：2–5.(in Chinese))

[13] 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(9)：1 425–1 429.(TANG Jianxin，HU Hai，TUXingdong，et al. Experimental on roadside packing gob-side entry retaining for ordinary concrete[J]. Journal of China Coal Society，2010，35(9)：1 425–1 429.(in Chinese))

[14] 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，2004，33(2)：183–186.(BAI Jianbiao，ZHOU Huaqiang，HOU Chaojiong，et al. Development of support technology beside roadway in goaf-side entry retaining for next sublevel[J]. Journal of China University of Mining and Technology，2004，33(2)：183–186.(in Chinese))

[15] 黄艳利，张吉雄，张强，等. 综合机械化固体充填采煤原位沿空留巷技术[J]. 煤炭学报，2011，36(10)：1 624–1 628.(HUANG Yanli，ZHANG Jixiong，ZHANG Qiang，et al. Technology of gob-side entry retaining on its original position in fully-mechanized coalface with solid material backfilling[J]. Journal of China Coal Society，2011，36(10)：1 624–1 628.(in Chinese))

[16] 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(6)：42–45.(WANG Maosheng，WANG Meng，DU Hailong. Gateway retained technology along goaf of coalmining face with thick and hard roof[J]. Coal Science and Technology，2013，41(6)：42–45.(in Chinese))

[17] 宁建国，马鹏飞，刘学生，等. 坚硬顶板沿空留巷巷旁“让–抗”支护机理[J]. 采矿与安全工程学报，2013，30(3)：369–374.(NING Jianguo，MA Pengfei，LIU Xuesheng，et al. Supporting mechanism of“yielding-supporting”beside roadway maintained along the goaf under hard rocks[J]. Journal of Mining and Safety Engineering，2013，30(3)：369–374.(in Chinese))

[18] 郝福坤，周同学，姜玉超. 人工强制放顶沿空留巷技术及其应用[J]. 煤炭科学技术，2006，34(2)：16–18.(HAO Fukun，ZHOU Tongxue，JIANG Yuchao. Forced roof caving technology and application to goaf-side entry retaining[J]. Coal Science and Technology，2006，34(2)：16–18.(in Chinese))

[19] 高魁，刘泽功，刘健，等. 深孔爆破在深井坚硬复合顶板沿空留巷强制放顶中的应用[J]. 岩石力学与工程学报，2013，32(8)： 1 588–1 594.(GAO Kui，LIU Zegong，LIU Jian，et al. Application of deep borehole blasting to gob-side entry retaining forced roof caving in hard and compound roof deep well[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(8)：1 588–1 594.(in Chinese))

[20] WANG F T，TU S H，YUANG Y，et al. Deep-hole pre-split blasting mechanism and its application for controlled roof caving in shallow depth seams[J]. International Journal of Rock Mechanics and Mining Sciences，2013，64(1)：112–121.

[21] HUANG B X，LIU C Y，FU J H，et al. Hydraulic fracturing after water pressure control blasting for increased fracturing[J]. International Journal of Rock Mechanics and Mining Sciences，2011，48(6)：976–983.

[22] 刘书梁. 坚硬顶板超前预裂爆破技术在沿空留巷中的应用[J]. 煤矿开采，2013，18(2)：79–81.(LIU Shuliang. Application of pre- splitting blasting hard roof in retaining roadway along gob[J]. Coal Mining Technology，2013，18(2)：79–81.(in Chinese))

[23] 刘洋，石平五. 长壁留煤柱支撑法开采存在的问题[J]. 煤炭学报，2007，32(6)：565–569.(LIU Yang，SHI Pingwu. Existing problem on longwall remaining coal pillars supporting mining[J]. Journal of China Coal Society，2007，32(6)：565–569.(in Chinese))

[24] 张志呈. 爆破基础理论与设计施工技术[M]. 重庆：重庆大学出版社，1994：76–78.(ZHANG Zhicheng. Basic theory and design construction technology for blasting[M]. Chongqing：Chongqing University Press，1994：76–78.(in Chinese))

[25] LIU W B，YANG J H，CHEN M，et al. An equivalent method for blasting vibration simulation[J]. Simulation Modelling Practice and Theory，2011，19(9)：2 050–2 062.

[26] MA G W，AN X M. Numerical simulation of blasting-induced rock fractures[J]. International Journal of Rock Mechanics and Mining Sciences，2008，45(6)：966–975.