断陷湖盆隐蔽油气藏勘探方法与实践--以泌阳凹陷为例

海相或陆相盆地（凹陷）隐蔽油气藏勘探成功得益于沉积型或者构造型坡折的存在,而在无坡折型断陷湖盆的隐蔽油气藏勘探处于初步探索阶段。通过在泌阳凹陷的工作,初步探索出了无坡折型断陷湖盆隐蔽油气藏勘探的方法和技术．该方法和技术以层序地层学“点-线-面-体-面-线-点”的研究思路为主线,以地震解释技术、三维可视化技术、测井约束反演技术为手段,通过宏观和微观的结合,地震地质的相互验证．最后结合成藏条件分析进行隐蔽油气藏预测。     

华蓥山隧道西口右线揭煤防突防坍技术

华蓥山隧道是我国在建的最长公路隧道 ,地质情况十分复杂。通过总结隧道西口右线揭煤的成功经验 ,为隧道大断面安全揭煤和防止煤层采空区坍塌提供技术参考     

Future water levels of the Great Lakes under 1.5 °C to 3 °C warmer climates

With the many different interests that are connected to the water levels of the Laurentian Great Lakes, the future of these water levels are of great concern to many people, businesses, and institutions. Projected future lake levels were calculated using data from the North American component of the Coordinated Regional Downscaling Experiment. The final lake level results are presented in relation to a 1.5 °C, 2.0 °C, 2.5 °C, and 3.0 °C change in global mean temperature. The results show that the range of possible values grows as the climate changes, with more extreme values for the lake levels becoming possible with greater changes in the global mean temperature. This increase in the range on both the high and low end may be a more important consideration than any general increase in the average water level for those living around the lakes Because the most severe impacts on the interests around the lake are usually associated with these extreme high or low levels. A greater understanding that the extremes in water levels observed in the past may be exceeded under a changing climate will help in the planning of future developments and activities within the Great Lakes basin with a forward looking coastal risk assessment and help communites build resilience to future extremes.     

矿井工作面突出危险性与瓦斯涌出特征回归分析的研究

分析研究了工作面煤与瓦斯突出危险性与瓦斯涌出特征值之间的相关关系,通过提取瓦斯涌出量平均值、最大值以及落煤瓦斯浓度数据斜率作为瓦斯涌出特征值,结合煤与瓦斯突出危险性指标,提出了工作面煤与瓦斯突出危险性与瓦斯涌出特征值回归分析方法。实例应用验证了该方法的有效性。     

高瓦斯低透气性煤层增透防突措施探究

高瓦斯低透气性煤层的一大难题是增加煤层的透气性,研究煤层的增透方法对安全高效生产具有重要的意义,文章集中讨论了几种解决高瓦斯低透气性煤层的方法。     

煤层完整取芯技术与影响因素研究

针对石门和井筒揭煤过程中只能上行取芯、不能下行取芯的技术难题,采用双管单转取芯器对山西某矿井筒和潞安集团李村煤矿石门巷道进行了取芯试验,总结出下行取芯失败的主要影响因素是钻孔中残留的水;通过采取钻孔注浆堵水、水泵抽水和全程打钻压风排渣等措施,排出了钻孔内的残留水,从而成功实现了煤层的完整取芯;指出成功取芯的标志是取芯器在煤层钻进过程中有大量的干屑煤从孔内喷出。     

Mean hydroclimatic and hydrological conditions during two climatic modes in the Devils Lake Basin,North Dakota (USA)

Proxy variables from palaeolimnological studies of lakes in the Prairie Pothole Region of North America have been used to infer large oscillations during the late Holocene between longer periods of high‐salinity–dry conditions and shorter periods of low‐salinity–wet conditions producing a normative pattern marked by the absence of hydrological stability. Studies of the historical rise in lake level at Devils Lake have identified 1980 as a transition point between two such hydroclimatic modes. This study uses multiple datasets to characterize the mean hydroclimatological and hydrological conditions of these two climatic modes. Mode 1 is a cool and dry phase, and mode 2 is a warmer and wetter phase. Precipitation onto the lake increased by 24% from mode 1 to mode 2. This small, but sustained, increase produced significant changes in the mean hydroclimatic and hydrological states for the basin, including a 383% increase in surface run‐off to the lake, and a 282% increase in the basin run‐off ratio. Devils Lake Basin is located along a hydrotone (region of strong hydroclimatic gradients) where small changes in hydrological drivers are amplified into large changes in regional moisture. The effects of the fluctuating climatic modes and strong hydroclimatic gradients are probably further amplified by the unique fill–spill hydrology of the northern glaciated plains, which can result in nonlinear precipitation–run‐off relationships. This natural pattern of extreme hydrological variations for Devils Lake produces enormous challenges for lake management.     

多煤层开采井筒褐煤区域瓦斯防治技术研究

介绍了山阳煤矿多煤层开采副井井筒揭煤时具体实施方法。在施工中采用了预测预报、瓦斯排放、震动放炮等四位一体综合防治突出措施，并加强组织管理工作，有效地消除了煤层突出的危险性，使井筒顺利地穿过4#、5#煤层，取得了良好的经济效益和社会效益，为澄合矿区在此类矿井施工作业中积累了宝贵的经验。     

民机运行支持数据湖设计与实现

随着大数据技术的发展,如何存储和处理各类民机运行支持数据,为企业用户提供所需数据,已成为主制造商企业进行数字化转型、洞察企业盈利和增值的关键因素之一;当前,主制造商数据采用传统数据库或数据仓库的模式无法满足航空运行数据指数级增长的需求;同时,数据管理标准、格式差异较大,不同用户无法快速获取有用信息,造成"企业数据孤岛";鉴于此,文章提出了一种基于Lambda的运行支持数据湖系统设计方法;首先介绍了数据湖的概念和特点;然后,介绍了基于Lamb-da 的运行支持数据湖系统的架构设计方案;结合运行支持数据湖的服务需求对系统功能进行设计;基于Angular、Spring Boot等开发了民机运行支持数据湖系统,为主制造商开展集中式数据管理、挖掘数据应用价值,实现企业数字化转型提供支撑.     

贵州典型煤与瓦斯突出事故原因初步分析及对策

在了解贵州煤矿区煤与瓦斯突出典型特征基础上,对2012年以来发生的5起煤与瓦斯突出事故特点和原因进行分析,指出了突出事故频发的客观原因和组织管理原因,并提出了针对性的防范措施,为提高矿井安全管理水平奠定了基础。