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| 1 | 浅埋房式采空区煤柱群稳定性评价显示文摘基于'品'字形煤柱分布及尺寸、采空区上方塑性区域边界拱角大小计算得出房式煤柱上覆平均载荷σ_(aps),结合煤柱完全塑性失稳后其邻近煤柱上覆平均载荷变化规律定义了煤柱单元失稳概率P_0。采用重整化群方法将煤柱群划分并建立为一维、二维元胞模型,将煤柱失稳概率密度函数(PDF)表示为威布尔函数分布形式并给出不动点方程,进一步求解煤柱失稳临界概率。以石圪台煤矿为实例,计算3-1-1号煤层房式采空区中煤柱稳定性,结合房式采空区煤柱群数值模拟结果,评价了石圪台煤矿房式采空区煤柱群稳定性,最后选取两个房式采空区工作面进行表土层剥离揭露实验,验证煤柱群稳定性理论计算可靠性,为相邻采区及井田内房式采空区下开采提供理论及工程参照。 | 朱德福 屠世浩 王方田 马行生 | 2018 | 煤炭学报2018，43，2： | 29 |
| 2 | 近浅埋大采高工作面关键层破断规律研究显示文摘以三道沟煤矿大采高综采工作面地质条件为原型,进行了相似材料物理模型实验研究.通过百分表、全站仪以及底板压力传感器构建实验的覆岩移动的监测系统和方法.结果表明:主关键层破断距与亚关键层破断距不成整数倍关系时,主关键层破断前,采场矿压显现较为平均,相邻周期来压间动载系数基本在1.40左右;主关键层破断后,由于主、亚关键层周期性协同破断的影响,矿压显现呈现大小交替变化,且来压步距与矿压显现强度呈现相反的规律,具体表现为:大周期来压时动载系数平均为1.61,来压步距集中在12~20 m;小周期来压时动载系数平均为1.39,来压步距集中在20~28m. | 王刚 罗海珠 王继仁 田富超 王帅 | 2016 | 中国矿业大学学报2016，45，3： | 13 |
| 3 | Experimental research on coal seam similar material proportion and its application显示文摘In this paper, the optimization design of the low strength mechanical test and orthogonal test have been analyzed in order to simulate the mechanical properties of thick and extra-thick coal seam accurately in a similar material simulation test. The results show that the specimen can reach a wider range of strength when cement has been used compared to that of gypsum, suggesting that cement is more suitable for making coal seam in similar material simulation tests. The uniaxial compressive strength is more sensitive to cement than coal or sand. The proportion of coal and sand do not play a decisive role in uniaxial compressive strength. The uniaxial compressive strength and specimen density decrease as the mass percent of coal and aggregate–binder ratio rise. There is a positive correlation between uniaxial compressive strength and density. The No. 5 proportion(cement: sand: water: activated carbon: coal = 6:6:7:1.1:79.9)was chosen to be used in the similar material simulation test of steeply dipping and extra-thick coal seam with a density of 0.913 g/cm^3 and an uniaxial compressive strength of 0.076 MPa which are in accordance with the similarity theory. The phenomenon of overburden stratum movement, fracture development and floor pressure relief were obtained during the similar material simulation test by using the proportion. | Cheng Weimin Sun Lulu Wang Gang Du Wenzhou Qu Hongyuan | 2016 | International Journal of Mining Science and Technology2016，26，5： | 12 |
| 4 | 孤岛工作面支承压力影响下顶板破坏机理研究显示文摘为了探讨孤岛工作面支承压力影响下顶板破坏机理,通过采用理论分析,建立薄板力学模型,对孤岛工作面顶板弯矩分布规律进行分析,并结合实验室数值模拟手段对工作面顶板支承压力集中系数及顶板围岩塑性区演变规律进行研究。研究结果表明:在支承压力作用下,随着推进距离的增大,顶板支承压力集中系数呈现增大的趋势;工作面顶板煤壁中部弯矩显著大于煤壁两侧弯矩,该结果合理解释了工作面方向上支架工作阻力不相等的规律;顶板断裂的塑性区演变特征存在时空效应及力学特征,顶板四周所形成的横向“O”型破断与横向“X”型破断,共同构成了顶板破断的横“O-X”破断形式。 | 王志强 徐春虎 任亚军 仲启尧 罗健侨 苏泽华 崔冬雪 | 2019 | 中国安全生产科学技术2019，15，6： | 10 |
| 5 | 厚大铁矿体崩落法开采围岩移动规律研究显示文摘以程潮铁矿西区崩落法开采为工程背景,基于近8年的GPS监测数据、现场地表破坏情况及相似材料模拟实验,对矿区围岩的塌陷及移动规律进行了分析。研究表明,井下开采引起的地表移动具有延时性、移动角发展具有跳跃性等规律,开采引起的围岩移动分为采空区覆岩塌陷阶段及周边围岩向采空区的倾倒破坏阶段。第1阶段垂直应力起到了主导作用,表现为有规律的桶形垮落,第2阶段水平构造应力起主导作用,可采用悬臂梁的力学结构进行表述。根据围岩移动机理的分析,将程潮铁矿围岩移动分成垂直陷落区、倾倒滑移区、倾倒区、变形区、变形累积区、未扰动区等6个区域。本文的研究成果可为类似金属矿山崩落法开采的地表移动规律预测提供了理论依据。 | 李腾 付建新 宋卫东 | 2018 | 采矿与安全工程学报2018，35，5： | 10 |
| 6 | 切顶成巷碎石帮泥岩碎胀特性及侧压力分析显示文摘切顶卸压自成巷是一种新型的无煤柱开采方法,形成的工作面顺槽采空区侧为碎胀岩体堆积而成的碎石帮,碎石帮岩体碎胀特性及碎石挤压产生的侧压力大小直接影响巷道稳定.以哈拉沟煤矿切顶卸压自成巷垮落泥岩顶板碎石帮为研究对象,分析了自成巷碎石帮垮落、压实和稳定3阶段的工程特性.结合工程实际,确定了碎胀系数现场实测的方法,提出了瞬时碎胀系数和稳定碎胀系数的计算方法.根据切顶卸压自成巷围岩结构特征建立了碎石帮力学模型,确定了碎石帮侧向压力计算公式及碎胀系数、覆岩压力、采高与碎石帮侧向压力的关系.通过实测哈拉沟煤矿12201工作面切顶卸压自成巷顶板泥岩的碎胀系数和碎石帮侧向压力,验证了理论计算结果的可靠性. | 郭志飚 王琼 王昊昊 马资敏 尹松阳 胡海龙 | 2018 | 中国矿业大学学报2018，47，5： | 9 |
| 7 | Analytical solutions of hard roof's bending moment,deflection and energy under the front abutment pressure before periodic weighting显示文摘The distribution of front abutment pressure is closely related to the force,deformation and energy distribution of hard roof before periodic weighting. So it is necessary to carry out research on the relationship between them. According to front abutment pressure distribution feature,using the location of peak front abutment pressure as the dividing point,coal seam is divided into two parts along the direction of mining: the yield zone that is the area between the faceline and the point where the maximum front abutment pressure occurs,and the elastic zone that is the part before the point of peak front abutment pressure. The proposed mechanical model of unit width hard roof at the panel center before periodic weighting consists of five parts including the yield zone. All parameters of the deflection equations for each of the five parts that satisfy the continuity conditions and natural boundary conditions are obtained by using the Matlab software. The continuous curves of front abutment pressure,deflection,bending moment and bending strain energy density distribution of hard roof are obtained by iterative approximation method,and the relationship between the yield zone width and the above curves are analyzed in detailed. | Jiang Haijun Cao Shenggen Zhang Yun Wang Chen | 2016 | International Journal of Mining Science and Technology2016，26，1： | 9 |
| 8 | 深部复杂金矿体充填开采对地表建筑物稳定性影响显示文摘为研究深部复杂矿体开采对地表建筑物稳定性的影响,借助概率积分法计算安全开采深度;采用3D Mine-Rhinoceros-FLAC^(3D)耦合构建矿区三维模型,进行地表安全性及变形规律研究.结果表明:①采用充填法进行深部矿体开采,地表产生均匀沉降变形,最大主应力随回采步骤增加呈多项式增长趋势,最小主应力呈线性增长趋势,扰动高度沿矿体走向呈正态分布趋势;②矿体的开采使其正上方产生“盆地式变形”,并依据安全性参数进行地表扰动边界圈定;③当下沉变形值小于10 mm、变化率大于0.5时和下沉变形值大于10 mm而小于20 mm、变化率大于1.5时,地表均为整体下沉现象,稳定性不受影响. | 张超 宋卫东 付建新 刘建博 | 2021 | 东北大学学报(自然科学版)2021，42，8： | 8 |
| 9 | 8.5 m采高综采工作面顶板运动及支承压力分布特征理论研究显示文摘为保障8.5 m采高综采工作面安全生产,在总结分析不同采高综采工作面矿压规律基础上,采用工程类比、理论分析、相似材料模拟对8.5 m采高综采工作面覆岩运动及支承压力分布特征进行理论研究。在理论分析中提出基于D-P准则引进洛德参数修正传统计算公式,以考虑中间主应力对屈服函数的影响;采用回归分析方法科学预测综采工作面动载系数。结果表明:12401综采工作面顶板厚度为22.68 m,初次、周期来压步距为56,21 m;正常开采期间,定量分析、估算法预测顶板来压强度为1.51,1.69 MPa;支承压力峰值点位置为13 m,影响范围60 m。研究成果为支架的选型设计和综采工作面安全高效生产提供借鉴。 | 邸帅 王继仁 宋桂军 | 2017 | 煤炭学报2017，42，9： | 5 |
| 10 | Mechanisms of support failure and prevention measures under double-layer room mining gobs——A case study: Shigetai coal mine显示文摘In the practice of mining shallow buried ultra-close seams,support failure tends to occur during the process of longwall undermining beneath two layers of room mining goaf(TLRMG).In this paper,the factors causing support failure are summarized into geology and mining technology.Combining column lithology and composite beam theory,the key stratum of the rock strata is determined.A finite element numerical simulation is used to analyze the overlying load distribution rule of the main roof for different plane positions of the upper and lower room mining pillars.The tributary area theory(TAT)is adopted to analyze the vertical load distribution of each pillar,and dynamic models of coal pillar instability and main roof fracture are established.Through key block instability analysis,two critical moments are established,of which critical moment A has the greater dynamic load strength.Great economic losses and safety hazards are created by the dynamic load of the fracturing of the main roof.To reduce these negative effects,a method of pulling out supports is developed and two alternative measures for support failure prevention are proposed:reinforcing stope supports in conjunction with reducing mining height,or drilling ground holes to pre-split the main roof.Based on a comprehensive consideration of economic factors and the two categories of support failure causes,the method of reinforcing stope supports while reducing mining height was selected for use on the mining site. | Defu Zhu Shihao Tu Hongsheng Tu Zhenqian Yang | 2019 | International Journal of Mining Science and Technology2019，29，6： | 4 |
| 11 | Overlying strata movement of recovering standing pillars with solid backfilling by physical simulation显示文摘To analyze the overlying strata movement law of recovering room mining standing pillars with solid backfilling.Physical simulation experiments with sponge and wood as the backfilling simulation material were tested.The results show that:(i) The covering-rock mechanics of the overly strata comes from 'two-arch structures + hinged girder + bend beam' to 'backfilling material + hinged girder + bent beam' by increasing the fill ratio from 0%to 85%,the beginning of overlying strata movement appears later and the total duration of subsidence velocity increased from zero to the highest value increases.The trend of 'single polarization' of the subsidence velocity curves becomes noticeable and the velocity variation trend becomes stable,(ii) The equiponderate aeolian sand was added to improve the anti-pressure ability of the loess,and the corresponding ground processing & transportation system was designed. | An Baifu Miao Xiexing Zhang Jixiong Ju Feng Zhou Nan | 2016 | International Journal of Mining Science and Technology2016，26，2： | 3 |
| 12 | 厚松散层薄基岩条件下矿井顶板涌水致灾因素分析及预测研究显示文摘为研究厚松散层薄基岩条件下开采诱发矿井顶板涌水事故的各因素之间的相互关系,总结了厚松散层薄基岩条件下影响矿井顶板涌水量的11个因素。基于模糊数学隶属度及隶属函数对各因素进行了初步处理,构建了基于神经网络的顶板涌水量预测模型,对影响因素权重进行了敏感性排序,并结合现场数据对模型加以验证。研究结果表明,厚松散层薄基岩下开采诱发顶板涌水事故的主要因素是由开采方法的选取引起的一系列'连锁反应'与地层赋存特征共同作用的结果。其中,开采方法、开采高度、基岩厚度及水压是影响松散层下开采顶板涌水灾害的主要因素。经过现场实例验证,模型的准确性较高,预测结果与工程实际吻合较好。 | 李波 张文泉 马兰 | 2017 | 山东科技大学学报(自然科学版)2017，36，6： | 3 |
| 13 | 山丘地形对浅埋7.0 m采高综采面矿压显现的影响显示文摘为分析山丘地形对浅埋煤层大采高综采面矿压显现的影响,以上湾煤矿12205综采面为例,采用理论分析、数值模拟与现场实测方法,研究综采面过平直与山丘地形下矿压显现的异同。通过应力传递力学模型确定山丘坡度、高度为矿压显现主要影响因素,进而利用数值模拟分析坡度、高度对矿压显现的影响。研究表明:与平直地形相比,工作面经过山丘地形时支承压力峰值、峰值点位置和影响范围均增加,大于30°的山丘坡度或大于30 m的高度,可能引起强烈的矿压显现;同时现场实测表明在山丘地形下(坡度45°,高度50 m)矿压显现较为强烈,证明了理论分析与数值模拟的可靠性。 | 邸帅 王继仁 李冬辉 戚旭鹏 王延生 | 2018 | 中国安全科学学报2018，28，2： | 3 |
| 14 | 公路下伏采空区开挖过程中围岩扰动规律研究显示文摘为研究湖南某公路下伏采空区的开挖过程对公路造成的影响和围岩的扰动规律,采用FLAC3D数值模拟软件对公路下伏2个处于相同水平采空区在按顺序先后开挖的过程进行了模拟,重点分析了围岩应力场、位移场及塑性区的演化规律。模拟分析表明:在采空区按顺序开挖的过程中,围岩都存在明显的拉应力集中和压应力集中的现象,围岩应力的改变不会对公路的安全施工造成较大的影响;开挖完成后,1号和2号采空区的顶板上方和底板下方的位移带均产生了连通的现象,采空区整体位移影响区域大幅增加,但对公路的地表变形影响不大;1号和2号采空区的塑性区在矿柱上产生了贯通的现象,矿柱极有可能发生失稳垮塌,将会极大地危害整个采空区和公路的安全和稳定性。 | 黄大桂 王李昌 隆威 雷家蔚 | 2020 | 铁道科学与工程学报2020，17，12： | 2 |
| 15 | Instability characteristics of the cracked roof rock beam under shallow mining conditions显示文摘To establish the movement relationship for the roof breaking under shallow mining conditions, the mechanical model of the roof rock beam was built, then the structure instability process of the roof rock beam was analyzed. The changing criterion of the vertical displacement was established and the relationship between the deflection and the rotary motion of roof block was determined. Regarding a mining face in Shangwan Mine, the responsing laws of the deflection and horizontal thrust of the roof rock beam were obtained through FLAC3D numerical analysis. The results show that the structure instability of the cracked roof rock beam depends on the interaction between the vertical load and the horizontal thrust.For the roof rock beam, when the vertical load keeps constant, the horizontal thrust fluctuating rises with increasing deflection. The horizontal thrust increases constantly with the deeper buried depth and the smaller span. | Zhao Yanhai Wang Shuren Zou Zhengsheng Ge Linlin Cui Fang | 2018 | International Journal of Mining Science and Technology2018，28，3： | 2 |
| 16 | 地下水水位变化时采空区覆岩变形特征研究——以山东北埠煤矿为例显示文摘煤层开挖时,地下水埋深对围岩的有效应力、附加应力及孔隙水压力传递方式均有一定影响,为揭示不同地下水水位对煤层开采过程中采空区上覆围岩变形的影响,避免因地下水水位变化造成的地表变形过大、围岩内力增加等问题。以山东北埠煤矿为研究对象,基于FlAC3D对不同地下水水位条件下的采空区覆岩变形特征展开深入研究,并得到以下结论:①地下水水位越高,岩层裂隙水压力与围岩附加应力越大,煤层开采引起的围岩扰动与地表变形越明显;②随着地下水水位的降低,采空区地表沉降值逐渐趋于某一固定值;③地下水位为200 m时,地表沉降矢量图呈现两个沉降漏斗,水位下降后逐渐变为单一沉降漏斗。 | 白云 刘波 王光凯 梁琴琴 谢孔金 宋海龙 王清标 张军贤 | 2020 | 矿产与地质2020，34，6： | 2 |
| 17 | Surface movement above old coal longwalls after mine closure显示文摘Although most subsidence occurs in the months and years after mining by the longwall method, surface movement is still occurring many decades after the mining. The aim of the study is to quantify the long term behavior. Satellite data(radar-interferometry) were analyzed to study an area of about 2 km^2 during the 18 years following the closure of the underground infrastructure and the flooding of the underground workings and rock mass. It was observed that, on average, a residual downward movement took place till 7–12 years after the closure, followed by a clear uplift. However, the first signs of an uplift occurred in certain sub-areas 3–4 years after the closure. Zones within the area studied were identified with either larger or smaller movements. However, the spatial variation of the surface subsidence or uplift could not be directly explained by the characteristics of mining. | André Vervoort Pierre-Yves Declercq | 2017 | International Journal of Mining Science and Technology2017，27，3： | 2 |
| 18 | 采空区群动力响应的类层间剪切模型法研究显示文摘为研究采空区群内岩体介质动力响应特性,提出采空区群动力响应的类层间剪切模型法。通过将上覆岩层等效为由'虚拟间柱群'和集中质量块组成的系统,将周边围岩等效为剪切力Q的作用,构建采空区群类层间剪切模型,建立采空区群内岩体介质的动力响应微分方程;考虑到单元空区的赋存深度和构成形状特征,引入剪切力影响因子δ,修正围岩的剪切力作用。以某金矿5个中段采空区组成的采空区群为例,利用数值分析法与该分析方法进行对比分析。结果表明:上述采空区群赋存环境的等效方法具有可行性;采空区群岩体在其内部阻尼及外部围岩剪切力的双重作用下,作振幅衰减振动;类层间剪切模型法和数值分析法计算记录点的位移、速度时程曲线趋势一致、幅值相近,但前者运算时间更短、效率更高。类层间剪切模型法为研究采空区群动力响应特性提供了一种新思路。 | 姜立春 王国伟 吴爱祥 | 2017 | 工程设计学报2017，24，3： | 2 |
| 19 | Influence of depth-thickness ratio of mining on the stability of a bedding slope with its sliding surface in concave deformation显示文摘In order to study the influence of depth-thickness ratio on bedding slope stability, whose sliding surface is flexural concave in shape under mining conditions, this paper aims to study the characteristics of deformation and damage of bedding sliding with depth-thickness ratios of 200:1, 150:1, 120:1, 100:1 and 50:1by adopting numerical simulation analysis software combined with laboratory-made ‘‘under the influence of mining variable sliding surface slope similar simulation test bed', and to propose identification methods for slope stability under the influence of mining. The results show that mining activities under the slope reduce slope stability. With a decrease in the mining depth ratio, the influence of mining on the slope increases gradually, and the damage to the slope gradually expands, the stability of the slope gradually reduces, fracture occurs on the slope toe and the central fissure gradually develops to the surface,and reaches slide threshold when the depth-thickness ratio is 50:1. | Zhang Yuning Tang Jianxin Li Guodong Teng Junyang | 2016 | International Journal of Mining Science and Technology2016，26，6： | 1 |
| 20 | 高速铁路沿线陡深萤石矿采空区变形分析显示文摘陡深萤石矿开采期间,地下水迁移和水头重分布会对采空区变形特征、受力机理和邻近高铁地表沉降产生影响。依托某萤石矿开采项目,在查明采空区工程地质条件和开采现状后,利用数值模拟的方法探讨地下水作用下陡深采空区的变形规律,以及不同情况下萤石开采对高铁工程的影响。研究结果表明,(1)抽水将改变地下水流场,增大地面沉降,考虑地下水作用时,铁路线位所在位置地面沉降为5.74 mm,对高铁工程影响较小。(2)不考虑地下水作用时,移动角为35°,考虑地下水作用时,移动角为28°,均小于移动盆地法计算的移动角;(3)采空区开采形成的空腔给孔隙水提供了导水通道,采空区周围孔隙水压力更易消散。(4)陡倾萤石矿开采时,矿区中部易发生拉伸破坏。应重点监测第二开采中段顶部沉降,并加强该处支护,防止出现冒顶等现象。 | 李立 | 2023 | 铁道勘察2023，49，6： | 0 |
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