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| 1 | 放顶煤液压支架承载特性及其适应性分析显示文摘通过对两柱、四柱式放顶煤液压支架支架结构特征分析,研究了不同工作阻力两柱式放顶煤液压支架、相同工作阻力两柱和四柱式放顶煤液压支架承载特性和其影响因素,并对液压支架适应性进行分析。研究结果表明:液压支架的结构特性决定其承载特性,两柱式放顶煤液压支架平衡千斤顶机构决定其有效承载范围在顶梁柱窝附近,增大立柱和平衡千斤顶的工作阻力能增大其承载能力,但通过增大平衡千斤顶工作阻力改变支架承载能力有限;四柱式放顶煤液压支架两排立柱与顶梁铰接位置决定其有效承载范围与立柱排距相当,增大前柱工作阻力降低后柱工作阻力能提高支架顶梁前段支撑能力,使支架有效承载范围前移;液压支架承载特性决定其适应性。平衡千斤顶能适时调节两柱式放顶煤液压支架顶梁上顶板荷载作用的位置,使其能适应一般综放工作面,但特厚煤层大采高综放工作面顶板荷载受顶煤放出影响作用位置多变,易导致平衡千斤顶损坏,四柱式支架有效承载范围较宽,使其能适应特厚煤层大采高综放工作面。 | 李化敏 蒋东杰 Syd S Peng 冯军发 | 2015 | 煤炭科学技术2015，43，6： | 33 |
| 2 | 单轴分级循环加载条件下砂岩疲劳变形特性与损伤模型研究显示文摘利用MTS815电液伺服试验机对两组砂岩试样进行了单轴分级循环加卸载试验,分析了分级循环加卸载应力-应变曲线特征和分级循环加卸载下岩石疲劳损伤演化过程,建立了循环加卸载条件下轴向应变与循环数目之间的理论模型,并推导了评价岩石损伤程度的损伤变量演化方程.结果表明:理论模型可以作为岩石循环加卸载条件下的破坏准则,试验结果与理论值之间相关度超过98%,同时,其逆函数可以实现对岩石疲劳寿命的预测;疲劳损伤演化方程可以衡量循环加卸载过程中疲劳损伤的发展水平;疲劳循环上限应力值是决定岩石疲劳寿命的关键因素,随着上限应力的提高,岩石的疲劳寿命呈现几何级数下降. | 李西蒙 刘长友 Syd SPENG 鲁岩 | 2017 | 中国矿业大学学报2017，46，1： | 27 |
| 3 | 基于海量矿压监测数据的采场支架与顶板状态智能感知技术显示文摘超前感知综采工作面顶板来压并预判冒顶事故、自主评价支护参数的适应性,是提高综采工作面安全高效及智能化水平的基础。围绕综采工作面支架与顶板状态智能感知的核心问题,基于综采工作面电液控制液压支架海量监测数据,开发了综采工作面支架与顶板状态智能感知系统(SSRI);结合大数据挖掘及工作循环分析技术,提出了用于支架压力分析的多因次工作循环特征参数;研究了安全阀开启、割煤及邻架移架、地质等多种因素影响下的单台支架承载特征及支架群组载荷转移分布规律;在深入解读支架阻力及活柱下缩时序曲线所蕴含的支架与围岩相互作用关系的基础上,构建了支架与顶板状态智能感知模型,实现了对顶板来压的预测、冒顶预警、支架适应性及支护质量评价,初步建立了基于海量矿压监测数据的采场支架与顶板状态智能感知技术体系。结果表明:①额定工作阻力不应作为评价支架承载能力的惟一或主要指标,初撑力、额定工作阻力及安全阀开启特性等参数共同决定了支架的承载特性及承载能力;②充分挖掘分析海量矿压监测数据,可以实现采场顶板灾害智能预警、支护质量评价及故障诊断等研究目标;③对海量监测数据的深入分析与利用是实现综采工作面支架围岩耦合自适应控制、支护参数自适应调整等智能化开采目标的前提与基础。 | 程敬义 万志军 PENG Syd S 张洪伟 邢轲轲 闫万梓 刘泗斐 | 2020 | 煤炭学报2020，45，6： | 17 |
| 4 | 美国快速推进长壁工作面开采设备发展现状显示文摘介绍了美国现代快速推进长壁工作面与设备发展现状,尤其是进入21世纪的发展情况。美国现代快速推进工作面与设备全国平均发展水平较高,各矿井差距较小;而我国工作面生产与技术装备水平表现为在地质条件优越的矿区达到甚至超过世界先进水平,无论是设备装备还是安全工效方面均取得较高的成就,但是在地质条件较差的矿区或是老矿区,煤矿装备与安全效能与美国还有较大差距。工作面发展水平严重不平衡是我国煤矿与美国煤矿的重要差距,进一步提高工作面装配水平与安全管理水平是我国煤矿发展的重要方向。 | 李西蒙 刘长友 Syd S.Peng | 2016 | 煤炭科学技术2016，44，1： | 17 |
| 5 | 美国煤炭地下开采与自动化技术进展显示文摘美国煤炭的地下开采分为长壁式和房柱式2种技术。地质条件较好、井田范围大的矿井,一般以长壁开采为主,否则以房柱开采为主。1994—2017年,美国井工矿数量减少了79%(2017年为237座)。但是单个矿井产量增加了230%,煤炭生产更加集中、高效。美国长壁开采以中厚煤层为主,采高一般为1.6~2.5 m(最大开采高度4.2 m,最小开采高度1.2 m)。长壁工作面均采用多巷布置、矩形断面巷道、锚杆支护。近年来,工作面尺寸、设备功率、设备尺寸逐渐增大,生产系统更加可靠。长壁工作面的自动化开采源于1984年的电动控制液压支架的研发与使用,此后开发了支架、采煤机、刮板输送机的单机自动化以及追机移架技术。2000年以后开发了半自动化工作面技术和采煤机远程控制技术。目前应用的主要是半自动化工作面技术,只有2个工作面应用了采煤机远程控制技术。这些技术解决了条件简单工作面的自动化开采问题,但遇到复杂地质条件时,仍需要人工干预。研发自动化开采的关键传感器和设备以适应地质条件变化、完善端部进刀系统,聚焦作业安全和粉尘与噪音防控,以及矿用大数据、高速通信与可视化技术是目前美国的重要研发方向。在近10 a来,房柱开采的工艺变化不大,但是开采装备的多样化和开采系统的自动化、信息化、智能化的相关技术开发取得了重要进展。 | 王家臣 PENG Syd S 李杨 | 2021 | 煤炭学报2021，46，1： | 16 |
| 6 | 神东矿区岩石物理力学性质变化规律研究显示文摘通过对神东矿区3个典型大采高工作面钻孔柱状岩石物理力学性质与沉积时期和埋深关系的研究,得到如下结论:1)埋深相同的同类岩性岩石的物理力学性质与沉积时期有着密切联系,同矿区不同矿井同一岩性即使在同一埋深条件下,其岩石物理力学性质也有很大的不同,沉积时期早的岩石物理力学性质大于沉积时期晚的岩石;2)同类岩性岩石的物理力学参数总体上随着埋深的增加而增加,且大多数岩石的物理力学性质与埋深具有较好的线性关系;3)同一矿井的砂岩类抗压强度和抗拉强度与颗粒粒径成反比,且泥岩类的抗压强度和抗拉强度普遍比粗砂岩和含砾粗砂岩高。 | 杜锋 Syd S PENG | 2019 | 采矿与安全工程学报2019，0，5： | 10 |
| 7 | Topical areas of research needs in ground control – A state of the art review on coal mine ground control显示文摘Ground control is one of the four subsystems of underground mining. It covers not only roof control, but also rib control, floor control, pillar design, shield design, overburden failures and subsidence. In the past three decades, ground control has made a tremendous advancement and many case studies have demonstrated its important role in the daily mining operations. However, there are plenty of room for improvements. This paper discusses the research needs in 12 subject areas including research approach, rock property, geology, computer modeling, in-situ stresses, roof bolting, coal pillars, field instrumentation,failures, surface subsidence, shield supports and coal bumps. | Syd S.Peng | 2015 | International Journal of Mining Science and Technology2015，25，1： | 9 |
| 8 | Trial of small gateroad pillar in top coal caving longwall mining of large mining height显示文摘Coal seams in Tashan Mine of Datong Coal Group in China average 15 m thick and have been mined by the top coal caving longwall mining method of large mining height. Mining height was 3.8 m and the top coal caving height was 11.2 m. The gateroad pillar between panels was 38 m. During retreat mining,serious bumps occurred in the gateroads on both sides of the pillar affecting safety production. Therefore,pillarless mining was experimented. Using numerical modeling and comparative study of cases of similar mining condition,it was decided to employ a 6 m wide pillar,rather than the previous 38 m wide pillar.Support system for the gateroads was designed and implemented. During gateroad development,pillar failure conditions and entry deformation were monitored. Hydraulic fracturing method was employed to cut off the K3 sandstone along the entry rib so as to reduce the abutment pressure induced during retreat mining. Support reinforcement method combining grouting and advanced reinforcement methods was proposed to insure stable gateroad ahead of mining. Methane drainage and nitrogen injection were implemented to eliminate hazards associated with mine fire and spontaneous combustion. Since the development of gateroad has just completed,and retreat mining has not begun,the effectiveness of the proposed methods is unknown at this point. However,monitoring will continue until after mining.The results will be published in a separate paper. | Li Huamin Syd Peng Li Huigui Xu Yongxiang Yuan Ruifu Yue Shuaishuai Li Kun | 2016 | International Journal of Mining Science and Technology2016，26，1： | 8 |
| 9 | Automation in U.S. longwall coal mining: A state-of-the-art review显示文摘This paper reviews the development of U.S. longwall mining from an unknown to became the world standard in the past five decades with emphasis on automation. Large scale longwall face equipment were imported from Germany and United Kingdom to increase production in the 1970 s and great effort was made to improve them to suit U.S. conditions, rather than domestic market. Automation began with the development of electrohydraulic shields in 1984 and continue to present. Introduction of first generation semi-automated longwall system occurred in 1995 and step-to-step improvement continues to present following the development of sensor technology and internet of things(IOT). Since then, emphasis on new development has been concentrated on the improvement of equipment reliability, miner's health and safety as well as production, including dust control techniques, proximity sensor, anti-collision and remote control. Automation is classified into two categories: automation of individual face equipment and automation of longwall system. The automation development of longwall system is divided into three stages: shearer-initiated-shield-advance(SISA), semi-automated longwall system, and remote control shearer. | Syd S.Peng Feng Du Jingyi Cheng Yang Li | 2019 | International Journal of Mining Science and Technology2019，29，2： | 7 |
| 10 | Underground ground control monitoring and interpretation,and numerical modeling, and shield capacity design显示文摘Mine or longwall panel layout is a 3D structure with highly non-uniform stress distribution. Recognition of such fact will facilitate underground problem identification/investigation and solving by numerical modeling through proper model construction. Due to its versatility, numerical modeling is the most popular method for ground control design and problem solving. However numerical modeling results require highly experienced professionals to interpret its validity/applicability to actual mining operations due to complicated mining and geological conditions. Underground ground control monitoring is routinely performed to predict roof behavior such as weighting and weighting interval without matching observation of face mining condition while the mining pressures are being monitored, resulting in unrealistic interpretation of the obtained data on mining pressure. The importance of ground control pressure monitoring and simultaneous observation of mining and geological conditions is illustrated by an example of shield leg pressure monitoring and interpretation in an U.S. longwall coal mine: it was found that the roof strata act like a plate, not an individual block of the size of a shield dimension, as commonly assumed by all researchers and shield capacity is not a fixed property for a longwall panel or a mine or a coal seam. A new mechanism on the interaction between shield's hydraulic leg pressure and roof strata for shield loading is proposed. | Syd S.Peng Jingyi Cheng Feng Du Yuting Xue | 2019 | International Journal of Mining Science and Technology2019，29，1： | 7 |
| 11 | Measurement of overburden failure zones in close-multiple coal seams mining显示文摘In the Kaiping Coal field,mining of five coal seams,located within 80 m in the Kailuan Group,#5,#7,#8,#9 and#12 coal seam,is difficult due to small interburden thickness,concentrated stress distributions,high coal seam metamorphism,and complex geological conditions.By using the ZTR12 geological penetration radar(GPR)survey combined with borehole observations,the overburden caving due to mining of the five coals seams was measured.The development characteristics of full-cover rock fractures after mining were obtained from the GPR scan,which provides a measurement basis for the control of rock strata in close multiple coal seam mining.For the first time,it was found that the overburden caving pattern shows a periodic triangular caved characteristic.Furthermore,it is proposed that an upright triangular collapsed pile masonry and an inverted triangular with larger fragments piled up alternately appear in the lower gob.The research results show that the roof structure formed in the gob area can support the key overlying strata,which is beneficial to ensure the integrity and stability of the upper coal seams in multiple-seam mining of close coal seams. | Yang Li Yuqi Ren Syd S.Peng Haozhou Cheng Nan Wang Junbo Luo | 2021 | International Journal of Mining Science and Technology2021，31，1： | 5 |
| 12 | What can the changes in shield resistance tell us during the period of shearer's cutting and neighboring shields' advance?显示文摘In order to determine the influence of shearer's cutting and neighboring shields' advance on the support resistance variation, leg pressure data of all 235 shields in the panel LW61 of Cumberland coal mine were analyzed. The results show that the relationship between the leg pressure increment and the distance from shield to front drum of shearer is a quadratic function and that the higher leg pressure increment before shield advance tends to be related to adverse roof conditions. In addition, the three proposed leg pressure increment-related parameters and the three traditional parameters(time-weighted average pressure, setting pressure, and final pressure) of approximately 32000 shield supporting cycles were calculated by a self-developed software package to analyze the correlation between them. The results show that there is a powerful connection between them, and that the three proposed leg pressure increment-related parameters could be used as the indexes to evaluate the interaction between shields and the roof, and to identify the periodic weighting. | Cheng Jingyi Wan Zhijun Peng Syd S. Liu Sifei Ji Yinlin | 2015 | International Journal of Mining Science and Technology2015，25，3： | 5 |
| 13 | Change of the mode of failure by interface friction and width-to-height ratio of coal specimens显示文摘Bumps in coal mines have been recognized as a major hazard for many years. These sudden and violent failures around mine openings have compromised safety, ventilation and access to mine workings.Previous studies showed that the violence of coal specimen failure depends on both the interface friction and width-to-height(W/H) ratio of coal specimen. The mode of failure for a uniaxially loaded coal specimen or a coal pillar is a combination of both shear failure along the interface and compressive failure in the coal. The shear failure along the interface triggered the compressive failure in coal. The compressive failure of a coal specimen or a coal pillar can be controlled by changing its W/H ratio. As the W/H ratio increases, the ultimate strength increases. Hence, with a proper combination of interface friction and the W/H ratio of pillar or coal specimen, the mode of failure will change from sudden violent failure which is brittle failure to non-violent failure which is ductile failure. The main objective of this paper is to determine at what W/H ratio and interface friction the mode of failure changes from violent to non-violent. In this research, coal specimens of W/H ratio ranging from 1 to 10 were uniaxially tested under two interface frictions of 0.1 and 0.25, and the results are presented and discussed. | Gamal Rashed Syd S.Peng | 2015 | Journal of Rock Mechanics and Geotechnical Engineering2015，7，3： | 3 |
| 14 | Impact of longwall mining on groundwater above the longwall panel in shallow coal seams显示文摘Since longwall mining causes subsidence through the overlying strata to the ground surface, the surface water and groundwater above the longwall panels may be affected and drained into the lower levels.Therefore, loss or interruption of streams and overburden aquifers is a common concern in coal industry.This paper analyzed the potential effects of longwall mining on subsurface water system in shallow coal seam. In order to monitor different water level fluctuations throughout the mining period, three water wells were drilled down to the proposed deformation zone above the longwall panel. A GGU-SS-FLOW3 D model was used to predict water table contours for the periods of pre- and post-mining conditions. The field data from the three water wells were utilized to calibrate the model. The field test and numerical model can help to better understand the dewatering of shallow aquifers and surface waters related to ground subsidence from longwall mining in shallow coal seam. | Yang Li Syd S.Peng Jinwang Zhang | 2015 | Journal of Rock Mechanics and Geotechnical Engineering2015，7，3： | 3 |
| 15 | Highly sensitive integrated flexible tactile sensors with piezoresistive Ge2Sb2Te5 thin films显示文摘Flexible tactile sensor has been extensively investigated as a key component for emerging electronics applications such as robotics,wearable devices,computer hardware,and security systems.Tactile sensors based on various one-dimensional materials have been widely explored.However,precise control of the direction and distribution of these nanomaterials remains a great challenge,and it has been difficult to scale down the device.Here,we introduce highly sensitive integrated flexible tactile sensors based on uniform phase-change Ge_(2)Sb_(2)Te_(5)(GST)thin films that can scale device size down,at least,to micrometer range.Significant piezoresistive effect has been observed in GST-based sensors,showing a giant gauge factor of 338.A proof of concept 5×5 sensor array functioning as a touch panel has been demonstrated.Also,the flexible GST tactile sensor has been utilized for monitoring of radial artery pulse.In addition to the well-known tunable electrical and optical properties,the piezoresistive GST films provide a versatile platform for the integration of sensing,recording,and displaying functions. | Zhiguang Wang Cunzheng Dong Xinjun Wang Menghui Li Tianxiang Nan Xianfeng Liang Huaihao Chen Yuyi Wei Haomiao Zhou Mohsen Zaeimbashi Syd Cash Nian-Xiang Sun | 2018 | npj Flexible Electronics2018，2，1： | 2 |
| 16 | Guest Editorial–Special issue on Ground Control in Mining显示文摘Ground control is the science of studying and controlling the behavior of rock strata in response to mining operations.Ground control related research has made significant advancements over the last 35 years and these accomplishments are well documented in the proceedings of the annual International Conference | Michael M.Murphy Gerald L.Finfinger Syd S.Peng | 2016 | International Journal of Mining Science and Technology2016，26，1： | 2 |
| 17 | 美国电影剧本分析显示文摘 | 雪德.弗尔德(Syd Field) 程珑 季伟 | 2001 | 电影艺术2001，，1： | 1 |
| 18 | European Works Councils and Flexible Regulation:The Politics of Intervention显示文摘 | Miguel Martínez Lucio and Syd Weston | 2000 | European Journal of Industrial Relations2000，，： | 1 |
| 19 | Guest editorial–Special issue on ground control in mining in 2016显示文摘In 1981 a Professor at West Virginia University recognized the need to establish a program for bringing together members of the mining community to share and discuss methods,technology and experiences related to ground control in mining operations[1].From this initial idea the International Conference on | Gerald L.Finfinger Syd S.Peng | 2017 | International Journal of Mining Science and Technology2017，27，1： | 1 |
| 20 | Read range performance comparison of compact' reader antennas for a handheld UHF RFID reader显示文摘 | UKKONEN L SYD?NHEIMO L KIVIKOSKI | 2007 | IEEE Appl Pract2007，1，1： | 1 |
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