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| 1 | 铁法矿区高瓦斯低透气性煤层群卸压煤层气抽采钻孔布置显示文摘基于铁法矿区高瓦斯低透气性煤层群地质及开采技术条件,采用物理模拟方法系统分析了煤层群不同开采顺序时采动裂隙演化特征,运用CFD(Computational Fluid Dynamics)Fluent分析了U型负压通风条件下采空区瓦斯流动规律,总结了铁法矿区卸压煤层气抽采钻孔布置原则。研究结果表明:回采巷道内侧约在工作面倾斜长度的1/3处为采动裂隙发育区、距回风巷30~80 m范围为高浓度瓦斯富集区。铁法矿区煤层气抽采钻孔布置的原则为:垂直方向上钻孔终孔位置布置在断裂带下1/3处、地面钻井的合理间距不小于100~150 m、沿工作面倾斜方向靠回风巷(1/3~1/2)工作面斜长范围为最佳的钻孔位置。 | 王旭锋 张东升 李国君 任廷祥 王晓东 | 2011 | 煤炭学报2011，36，8： | 30 |
| 2 | 沟谷区域浅埋煤层工作面覆岩破断及矿压显现特征显示文摘针对串草圪旦煤矿4104工作面过沟谷上坡段时易发生动载矿压显现情况,研究了沟谷区域关键层缺失情况下工作面上坡开采时覆岩关键层的破断特征以及矿压显现特征。研究表明:沟谷关键层的缺失使得上坡段关键层呈非均布载荷作用下的悬臂梁方式存在,关键层岩体可能发生剪断破坏或拉断破坏,其失稳形式相应表现为滑落失稳或回转失稳,并受沟谷坡角的影响;在4104工作面条件下,当沟谷坡角小于57°时,工作面覆岩关键层表现为拉断破坏,其失稳形式为回转失稳,当沟谷坡角大于57°时,覆岩关键层表现为剪断破坏,其失稳形式为滑落失稳。现场实测表明,工作面过沟谷上坡段开采时动压现象明显,并提出了减缓矿压显现程度、提高顶板控制效果的措施。 | 赵杰 刘长友 李建伟 | 2017 | 煤炭科学技术2017，45，1： | 25 |
| 3 | 沟谷区域浅埋煤层采动矿压发生机理及控制研究显示文摘为了分析沟谷区域浅埋煤层开采井上下地质灾害发生机理及其相互作用,基于串草圪旦煤矿沟谷区域浅埋煤层开采条件,采用现场实测、三维地质建模、数值模拟和理论分析相结合的研究方法,研究了沟谷地形下煤岩层原岩应力分布特征以及煤层开采引起的覆岩应力场、位移场和破坏场的分布规律。研究结果表明:沟谷区域浅埋煤层开采煤岩层原岩应力分布受地表沟谷地形的影响,且随着深度的增加,地表沟谷的影响作用减弱;浅埋煤层工作面过沟谷区域开采可分为上坡开采阶段、坡顶开采阶段和下坡开采阶段,过沟谷区域上坡开采阶段,工作面易发生动载矿压事故,且易诱发地表滑坡、塌陷等地质灾害,并提出了相应的预防性控制措施。 | 李建伟 刘长友 赵杰 王文才 卜庆为 | 2018 | 煤炭科学技术2018，46，9： | 22 |
| 4 | Large-scale deformation monitoring in mining area by D-InSAR and 3D laser scanning technology integration显示文摘Large-scale deformation can not be detected by traditional D-InSAR technique because of the limit of its detectable deformation gradient,we propose a method that combines SAR data with point cloud data obtained by 3D laser scanning to improve the gradient of deformation detection.The proposed method takes advantage of high-density of 3D laser scanning point cloud data and its high precision of point positioning after 3D modeling.The specifc process can be described as follows:frst,large-scale deformation points in the interferogram are masked out based on interferometric coherence;second,the interferogram with holes is unwrapped to obtain a deformation map with holes,and last,the holes in the deformation map are flled with point cloud data using inverse distance weighting algorithm,which will achieve seamless connection of monitoring region.We took the embankment dam above working face of a certain mining area in Shandong province as an example to study large-scale deformation in mining area using the proposed method.The results show that the maximum absolute error is 64 mm,relative error of maximum subsidence value is 4.95%,and they are consistent with leveling data of ground observation stations,which confrms the feasibility of this method.The method we presented provides new ways and means for achieving large-scale deformation monitoring by D-InSAR in mining area. | Chen Bingqian Deng Kazhong Fan Hongdong Hao Ming | 2013 | International Journal of Mining Science and Technology2013，23，4： | 12 |
| 5 | 沟谷区域浅埋厚煤层开采应力场分布及矿压显现特征显示文摘针对沟谷区域浅埋厚煤层开采工作面易发生动载矿压灾害的情况,采用数值模拟、理论分析与现场实测相结合,分析了沟谷地形下煤岩层原岩应力场分布特征与煤层开采期间覆岩应力场、位移场及工作面矿压显现规律。研究表明:沟谷地形对煤岩层原岩应力场的影响程度随煤岩层埋深的增大而减小,根据其对下覆煤岩层原岩应力场的影响程度的变化,可将沟谷地形下不同深度范围煤岩层分为显著影响区、影响减弱区和无影响区;工作面推进方向与沟谷沟底走向之间可分为平行、垂直和斜交3种情况,不同情况下工作面开采围岩应力场、位移场分布特征的不同,是引起工作面矿压显现差异化的根本原因。通过对沟谷地形下工作面矿压显现特征及支架承载特性的实测分析,对易出现动载矿压的情况进行了分类。 | 赵杰 刘长友 李建伟 | 2018 | 采矿与安全工程学报2018，35，4： | 11 |
| 6 | 沟谷区域浅埋煤层开采三维地质建模及地表损害研究显示文摘为了分析沟谷区域浅埋煤层开采地表损害变化规律,基于串草圪旦煤矿沟谷区域浅埋厚煤层开采地质及生产条件,采用三维地质建模、数值计算以及理论分析相结合的研究方法,研究了沟谷地形条件下煤岩层原岩应力分布特征,煤层开采对沟谷区域地表应力及位移分布的动态影响规律,以及浅埋厚煤层大规模开采地表损害影响范围动态变化特征等。结果表明:FLAC3D三维地质建模能有效满足复杂地貌条件下浅埋厚煤层开采三维仿真分析要求;沟谷地形的存在影响地表及其下覆煤岩层原岩应力分布,地表沟谷区域存在剪切应力集中,易发生地质灾害;煤层的开采活动导致地表沟谷区域应力集中程度增大,易诱发沟谷坡体发生滑坡、塌陷等地质灾害;随着煤层开采范围的增大,地表塌陷影响范围不断扩大,采空区上方地表位移等值线由'O'字型向近似长方形变化,且地表损害影响范围及影响程度均具有动态变化特征。 | 赵杰 刘长友 李建伟 王文才 | 2018 | 采矿与安全工程学报2018，35，5： | 9 |
| 7 | 沟谷地形下近浅埋煤层工作面矿压显现规律研究显示文摘为掌握沟谷地形下近浅埋煤层工作面矿压显现规律,以王家岭煤矿20105工作面地质条件及生产实践为基础,采用顶板动态监测系统,分别对不同坡体下工作面液压支架工作阻力特性进行观测,分析了沟谷垂深、坡体角度、冲沟切割系数对工作面矿压显现的影响。研究表明,沿工作面倾向不同区域的来压步距、持续时间及来压强度均不同,工作面中部的初次及周期来压强度均大于工作面两端的来压强度;相较于沟谷垂深及坡体角度,冲沟切割系数是影响工作面矿压显现的主要因素,冲沟切割系数大于0.4时,支架阻力增量超过8%,冲沟切割系数小于0.17时,支架阻力增量变化不明显。近浅埋煤层的基岩厚度较大,且存在双关键层结构,沟谷地形对其支架阻力的影响程度相对较低。 | 王宏志 刘洪林 宋帅帅 陈运财 | 2020 | 中国矿业2020，29，9： | 8 |
| 8 | Mechanism of Mining-induced Slope Movement for Gullies Overlaying Shallow Coal Seams显示文摘This paper provides an improved understanding of the movement mechanisms of both bed-rock gully and sandy soil gully when underground mining occurs underneath,followed by systematic analysis of the contributing factors such as mining advance direction,gully slope angle,gully erosion coefficient and mining height.This paper presents the results from monitoring,theoretical analyses and up to date modeling based on the geological features in the gully affected area,and the implications of these results to the success of roof support trial.It was observed that when mining occurred towards the gully,sliding of slope block along the fracture surface occurred,which resulted in unstable roof condition;when mining progressed away from the gully,polygon blocks developed in the gully slope and rotated in reversed direction forming hinged structure;within the bed-rock slope,the hinged structure was unstable due to shear failure of the polygon block;however,within the sandy soil slope,the structure was relatively stable due to the gradual rotating and subsiding of the polygon block.The increase of the value of slope angle and mining height lead to a faster and more intensive fracture development within the gully slope,which had a pronounced effect on gully slope stability and underground pressure.Various remediation approaches are hence proposed in this paper including introducing more powerful support and reasonable mining height,setting up working face along or away from gullies,using room and pillar,strip mining and backfill instead of longwall mining. | WANG Xu-feng ZHANG Dong-sheng ZHANG Cheng-guo FAN Gang-wei | 2013 | Journal of Mountain Science2013，10，3： | 8 |
| 9 | Characteristics and stability of slope movement response to underground mining of shallow coal seams away from gullies显示文摘Underground pressure is abnormal during mining of shallow coal seams under gullies. We studied gully slope movements, subject to underground mining, with physical simulation and theoretical analysis. The rules disclose that the slope rock slides horizontally in response to mining in the direction of gullies and rotates reversely with the appearance of a polygon block in mining away from gullies. We focused our attention on the case of mining away from a gully. We built a mechanical model in terms of a polygon block hinged structure and investigated the variation of horizontal thrust and shear force at the hinged point in relation to the rotation angle under different fragmentations. The Sliding-Rotation instability conditions of the polygon block hinged structure are presented based on the analyses of sliding instability and rotation instability. These results can serve as a theoretical guide for roof control during mining away from gullies in a coalfield defined by gullies. | Zhang Dongsheng Fan Gangwei Wang Xufeng | 2012 | International Journal of Mining Science and Technology2012，22，1： | 8 |
| 10 | 沙土质型冲沟发育区浅埋煤层长壁开采支护阻力的确定显示文摘基于沙土质型冲沟坡体下浅埋煤层长壁开采顶板结构承受非均匀载荷的基本特征,采用理论分析与现场实测的方法,以工作面背沟推进为主要方式,将冲沟坡体及其形态纳入顶板结构控制当中,结合冲沟坡体下开采基本顶初次破断与周期破断时的顶板结构力学模型,按给定失稳载荷状态,分析了工作面来压期间的'支架-围岩'作用关系模型,得到了控制顶板结构滑落失稳的支护阻力。结合具体工作面地质条件,分析了支架工作阻力随工作面推进的变化特征,给出了支架支护阻力算例,针对该工作面支架支护阻力进行的现场实测结果验证了该方法的可靠性。 | 王旭锋 张东升 张炜 许猛堂 | 2013 | 煤炭学报2013，38，2： | 7 |
| 11 | Effects of gully terrain on stress field distribution and ground pressure behavior in shallow seam mining显示文摘This study proposes a novel approach to study stress field distribution and overlying ground pressure behavior in shallow seam mining in gully terrain.This approach combines numerical simulations and field tests based on the conditions of gully terrain in the Chuancao Gedan Mine.The effects of gully terrain on the in situ stress field of coal beds can be identified by the ratio of self-weight stress to vertical stress(η) at the location corresponding to the maximum vertical stress.Based on the function η =j(h),the effect of gully terrain on the stress field of overlying strata of the entire field can be characterized as a significantly affected area,moderately affected area,or non-affected area.Working face 6106 in the Chuancao Gedan Mine had a coal bed Jepth <80 m and was located in what was identified as a significantly affected area.Hence,mining may cause sliding of the gully slope and increased loading(including significant dynamic loading) on the roof strata.Field tests suggest that significant dynamic pressures were observed at the body and foot of the gully slope,and that dynamic loadings were observed upslope of the working face expansion,provided that the expanding direction of the working face is parallel to the gully. | Li Jianwei Liu Changyou Zhao Tong | 2016 | International Journal of Mining Science and Technology2016，26，2： | 6 |
| 12 | 高瓦斯工作面隅角柔性气囊安全封堵研究显示文摘为解决高瓦斯工作面隅角封堵工人劳动强度大、效率低,封堵效果不佳易造成隅角瓦斯浓度超限等安全问题,研发设计了矿用阻燃内外胆组合结构的轻型柔性隅角封堵气囊,并相应提出了单体液压支柱配合轻型柔性气囊的隅角封堵新方法。通过实验室测试实验和现场工业性试验表明:选用PVC材料和双抗涂覆布材料的气囊质量小、轻便实用,大幅降低了工人的劳动强度,提高了工作效率,减小了传统封堵方式编织袋装碎煤造成的遗煤浪费;该气囊可适应大变形(变形率可达42.5%)、耐冲击(2×104J的冲击能量不破坏),抗撕扯能力强,且具有阻燃特性,重复使用率高,大大节约了隅角封堵的成本;使用气囊封堵后,采空区内瓦斯浓度显著增大,说明气囊封堵的密闭性增加,安全封堵效果十分明显。 | 王磊 谢广祥 唐永志 李家卓 牛心刚 | 2015 | 中国安全生产科学技术2015，11，6： | 4 |
| 13 | 砂粒径对相似材料力学特性的影响机理显示文摘为探明砂粒径对相似材料力学特性的影响机理,提高相似物理模拟实验的精度,对0.1~3mm的11种粒径条件下的99个力学试件进行了单轴抗压测试及渗透系数测试,并从石膏水化反应机理和内外部结构特征两方面阐释了试件力学特性变化的规律及机理。研究发现:砂粒径对相似材料的抗压强度影响范围在-16.51%~49.79%之间,但总体上粒径对材料强度的影响成负相关关系;SEM电镜观察发现,在较小砂粒径条件下生成的CaSO4·2H2O晶体多以相互交织的针状和短粗棒状晶体呈现,材料强度也较大,而粒径大时多以层片状、板状出现,交织程度差,力学强度弱;表征观察发现,砂粒径越小的试件界面缝长度与宽度则越小,砂粒的比表面积越大,接触应力更加均匀,不易产生应力集中而破坏材料;相似材料的渗透系数随砂粒径的增加而增大;当粒径大小为1.5~2.0mm时,试件单轴抗压强度与目标值最为接近。 | 齐琦 管伟明 温颖远 | 2020 | 中国矿业2020，29，6： | 2 |
| 14 | 黄土沟壑地貌下原岩应力场分布特征研究显示文摘本文针对地表黄土沟壑对回采工作面矿压显现影响较大的现象,基于王家岭煤矿12309工作面的工程地质实际,运用实地调研的方法归纳总结了工作面地表黄土沟壑分布形态,运用Get Data软件构建了工作面黄土沟壑地表三维形态数据库;结合Rhinoceros以及Midas-GTS等辅助软件,建立了含有黄土沟壑地貌的12309工作面三维全尺寸等比例的FLAC 3D数值计算模型;运用数值计算的方法,对黄土沟壑地貌下原岩应力分布规律进行了分析;提出了黄土沟壑地貌影响系数η,结合数值计算结果拟合出了以煤层埋深h为自变量η的非线性表达式;以工作面超前支承压力为预警阈值,将工作面回采时地表黄土沟壑影响区域划分为“黄土沟壑地貌影响强烈区”“黄土沟壑地貌影响明显区”“黄土沟壑地貌影响微弱区”,并对12309工作面受地表黄土沟壑影响进行了预警区划,为保障工作面安全高效回采提供了理论基础。 | 杨秀宇 巨文涛 张光磊 王仲伦 | 2020 | 中国矿业2020，29，9： | 1 |
| 15 | Design of comprehensive test system for detecting overlying strata mining-induced fractures on surface with radon gas显示文摘Based on radon gas properties and its existing projects applications, we firstly attempted to apply geo- physical and chemical properties of radon gas in the field of mining engineering, and imported radioac- tive measurement method to detect the development process of the overlying strata mining-induced fractures and their contained water quality in underground coal mining, which not only innovates a more simple-fast-reliable detection method, but also further expands the applications of radon gas detection technology in mining field. A 3D simulation design of comprehensive testing system for detecting strata mining-induced fractures on surface with radon gas (CTSR) was carried out by using a large-scale 3D solid model design software Pro/Engineer (Pro/E), which overcame three main disadvantages of ''static design thought, 2D planar design and heavy workload for remodification design'' on exiting design for mining engineering test systems. Meanwhile, based on the simulation design results of Pro/E software, the sta- bility of the jack-screw pressure bar for the key component in CTSR was checked with a material mechan- ics theory, which provided a reliable basis for materials selection during the latter machining process. | Zhang Wei Zhang Dongsheng Fan Gangwei | 2011 | Mining Science and Technology2011，21，6： | 1 |
| 16 | 沟谷区域浅埋厚煤层开采动载矿压机理及覆岩导气裂缝分布特征显示文摘针对我国西部沟谷区域浅埋厚煤层开采易发生动载矿压灾害、地表采动损害、覆岩导气裂缝造成的采空区地表漏风等影响工作面安全绿色开采的科技难题,采用现场实测、三维地质建模、数值模拟、理论分析和现场工业性试验相结合的研究方法,研究了沟谷区域浅埋煤层开采动载矿压发生机理、地表采动裂缝形成机理以及覆岩导气裂缝时空分布特征。结果表明:沟谷区域浅埋厚煤层开采动载矿压事故的发生受到地表沟谷形态、工作面与地表沟谷空间位置关系以及工作面支护条件等的综合影响;地表采动裂缝及覆岩导气裂缝随覆岩失稳运动呈现动态性变化特征,裂缝贯通发展区内导气裂缝导气性能随其距工作面距离的增大而减弱。形成了沟谷区域浅埋厚煤层安全绿色开采的相关理论与系列控制技术,现场应用取得了显著的技术效果和经济效益。 | 刘长友 李建伟 赵杰 陈毅琪 张涵锐 余鑫 | 2023 | 采矿与安全工程学报2023，40，5： | 0 |
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