山东省日照市蓝色经济区城市三维地质结构调查及三维建模

针对日照市城市可持续发展中面临的地质环境和地质资源问题,开展蓝色经济区城市三维地质结构调查。运用先进的勘察技术、地理信息系统技术、三维地质建模技术,开展城市三维地质结构填图,建立了日照市钻孔三维实体、第四系结构、基岩结构三维模型。通过数字曲面拟合和计算机图形学的方法,把空间分布不均匀、不连续、散乱的地质信息变成可视的、连续的、形象直观的三维地质模型,以三维图象的形式形象地表达了各种地质结构的真实形态、特征,圈定影响深基础开挖和地下空间利用的不良地质体范围,为日照市地下空间资源开发利用提供地质依据。     

冠县地下水资源概况及开发利用建议

介绍了山东省冠县的水文地质条件和地下水资源开发利用现状,分析了由于过量开采浅层地下水而引发的水位下降及水质恶化等问题,提出了合理开发利用地下水的建议。     

Underground water quality model inversion of genetic algorithm

The underground water qualitymodel with non-linear inversion problem is illposed, and boils down to solving the minimum of nonlinear function. Genetic algorithms are adopted in a number of individuals of groups by iterative search to find the optimal solution of the problem, the encoding strings as its operational objective, and achieving the iterative calculations by the genetic operators. It is an effective method of inverse problems of groundwater, with incomparable advantages and practical significances.     

利用海量探测数据实现昆明市地下管线三维建模的应用研究

本文讲述以Skyline5.1为三维GIS开发平台,以C#为二次开发语言,结合昆明市地下管网的实地探测数据,快速实现昆明城市地下管线探测数据三维模型的建设。在此过程中解决了大数据量城市地下管线数据直接三维模型构建并正确处理管线数据之间的逻辑关系,减少人工干预工作量;从而实现城市地下管线探测数据快速生成三维图形并提交使用。     

广西岩溶石山地区地下水开发利用建议

为了解决广西岩溶石山区人畜饮水和农田用水问题 ,需对丰富的地下水资源进行详细勘查和合理开发 ,采取有效措施 ,就能实现岩溶石山区人民的脱贫目标。     

西南天山中—新生界层控砂砾岩型铜铅锌矿成矿规律

西南天山是新疆中—新生界层控砂砾岩型铜铅锌矿的重要产出地区,以萨热克铜矿、乌拉根铅锌矿、花园铜矿、伽师铜矿为代表,均产于隆起剥蚀区边缘的红层盆地中并严格受层位控制,赋矿盆地的下部为煤系生烃岩,中部为渗透性良好的砂砾岩铜铅锌矿储集层,上覆膏岩及泥岩等密闭盖层,具有铜铅锌-铀-煤-天然气同盆共存富集的成矿特征。文章总结了西南天山赋矿盆地沉积-构造演化及赋矿层位特征,研究了铜铅锌典型矿床的控矿条件和成矿作用特征。通过对比分析,总结了中—新生界砂砾岩型铜铅锌矿的区域成矿规律,认为有机质与铜铅锌成矿关系密切,推测在原始矿源层的基础上,在隆起部位经油田卤水叠加形成铜铅锌贫矿体,喜马拉雅期断裂构造沟通深源成矿流体再次叠加形成铜铅锌富矿体。总结构建了西南天山中—新生界层控砂砾岩型铜铅锌矿的成矿模式,以期为已知矿山深边部勘查及区域找矿工作部署提供依据。     

Impact of an inter‐basin water transfer and reservoir operation on a karst open streamflow hydrological regime: an example from the Dinaric karst (Croatia)

This paper describes the hydrological changes caused by inter‐basin water transfer and the reservoir development on the hydrological regimes of two rivers. The Sabljaki Reservoir in the Zagorska Mre?nica River and the Bukovik Reservoir in the upper Dobra River began operation in 1959. Both are part of the hydroelectric power plant (HEPP) Gojak, whose installed capacity is 50 m³/s. Their water volumes at the spillway altitudes of 320·10 and 320·15 m a. s. l. are 3·3 × 10⁶ and 0·24 × 10⁶ m³ respectively. Both the Dobra and Mre?nica Rivers are losing, sinking and underground karst rivers. A 9376‐m‐long tunnel provides water from the Sabljaki Reservoir to the HEPP Gojak, which was constructed in the Lower Dobra River. The Sabljaki Reservoir is located in the Pla?ki karst polje, while the Bukovik Reservoir is located in the neighbouring Ogulin karst polje. The consequences of the inter‐basin water transfer are strong and have caused abrupt changes in the hydrological regimes of the downstream sections of both rivers. At the same time, the construction and development of both the reservoirs have also caused hydrological changes to the upstream section of the Upper Dobra River. Copyright © 2010 John Wiley & Sons, Ltd.     

In situ yield behaviour of a coal pillar

Summary An indication of the complete stress-strain behaviour of coal was obtained through instrumenting a headgate yield pillar and monitoring the changes in vertical and horizontal pillar stress, pillar strain, and roof-floor convergence as a function of time and distance from the moving longwall face. A semiautomated monitoring program was conducted over a 5 month period as the longwall face advanced toward and eventually passed the instrumented pillar. The development of a confined core and yield zone within the pillar was confirmed by the vertical and horizontal stress changes. Thein situ pre-failure (208 to 661 MPa) and post-failure moduli (55 to 208 MPa) of the coal were determined from the change in pillar stress versus pillar strain. Thein situ moduli are an order of magnitude lower than the 3450 MPa, commonly assumed for coal.     

Induced gravity anomalies and seismic energy as a basis for prediction of mining tremors

The results of prediction of occurrence of mining tremors and bursts in the course of the exploitation of the remaining part of the hard coal in seam 510 of the mine Pstrowski, Upper Silesia, have been presented in the paper. The exploitation has taken place under extremely difficult conditions hazardous for the mining crew.To predict the occurrence of mining tremors, bursts and direction of migration of increased elastic strain in the rock mass, the microgravity method has been applied.The microgravity observations were carried out in the measurement points located at mutual distances equal 20 m in three profiles of the lengths 700 m, 760 m and 260 m respectively. The profiles were located in mining workings in the vicinity of the exploited part of the bed. In the course of exploitation, lasting 25 months, 29 series of measurements including 3600 individual microgravity observations were carried out. Microgravity observations were made with a Worden-Master gravimeter.The observed time changes of gravity microanomalies were essential for prediction. Local negative changes of gravity microanomalies signalled the approaching mining tremor. The tremor would cover an area of the radius 60 m to 100 m. The regional time changes of the gravity microanomalies appearing as linear trends of these anomalies signalled the development of the fields of elastic strain in the whole investigated area and the approaching violent release of elastic strain energy from the rock mass.The values of the amplitudes AMP of the above-mentioned trend were the measure of this hazard. In the course of the investigations each shock was preceded by considerably increased values of AMP.     

论宁夏金场子渗流热卤水-表生改造型金矿床的矿源

稳定同位素、岩石微量元素(金)和地质特征研究的结果,表明金场子金矿床的成矿物质来源系上地壳源,并且金、银、铅、铜等金属和硫、硒、砷、氯、氟、碳等来源于石炭纪和泥盆纪沉积岩。成矿流体是大气水和沉积地层水的混合溶液。金矿化与地热流体渗流热卤水成矿作用和表生风化成矿作用有关。