宝珠寺水电站帷幕灌浆工程浅议

本文着重介绍了在四川广元市宝珠寺水电站帷幕灌浆工程中的施工组织、施工方法和工艺流程、施工中的技术要求，以及施工质量检测和验收标准，同时还介绍了帷幕灌浆施工中的一些特殊问题的处理方法，以及在涌水的情况下所采取的施工措施和效果。     

细石混凝土砌石坝质量控制问题研究——杜河水电站细石混凝土砌石重力坝施工实践

本文阐述了细石混凝土砌石重力坝的施工方法和特点，施工中的质量控制所采取的组织措施和技术措施，特别是技术措施，从施工前原材料的检查和检验、施工中施工方法和工艺监督及控制、施工后抽查和检测都进行了详尽的阐述，并就施工中需要特别注意的问题提出了具体的解决办法。     

隧道施工地质超前预报资料收集方法

隧道施工地质超前预报是了解掌子面前方施工地质条件的最好方法，施工地质超前预报的关键是资料收集和处理，探讨了资料收集方法。     

隧洞的各种施工方法和新奥法

隧洞的施工方法因地质条件，水文条件，隧洞长度，隧洞截面尺寸和形状，开挖设备型式以及隧洞的用途不同而异，在各种影响因素中，地下的地质条件和隧洞断面尺寸是决定隧洞施工方法的主要因素，因此，对于不同的隧洞施工情况已经发展为几种不同的隧洞施工系统。本文将阐述隧洞的开挖方法（传统的方法和利用隧洞掘进机的方法）和包括新奥法在内的在岩层中的开挖隧洞的方法。     

隧道竖井施工自动化监测方法研究

监控量测是隧道竖井信息化施工与安全的重要保障。由于竖井结构与施工空间限制，对于离掌子面较远的断面，水准仪、全站仪等常规监测手段可操作性差，使得竖井施工监测成为一个难题。依托墨临高速公路泰和隧道竖井工程，研究了一套竖井自动化监控量测方法，将该方法应用于实际施工监测，并对施工期间监测数据进行分析，总结了竖井监控量测工作的注意事项。研究成果对类似竖井施工监控量测工作具有一定的指导意义。     

白山电站续建工程厂房开挖爆破施工技术

白山电站续建工程厂房开挖施工是已建的一期工程投入运行的基础上进行的，边界条件杂，具有一定的特点，介绍了续建工程厂房开挖施工方法，施工程序以及爆破施工技术措施。     

确保深层搅拌桩在基坑支挡中施工质量的措施

从深层搅拌桩的施工顺序，施工前准备工作，喷浆次数与成桩质量的关系，补桩方法，施工中应注意的问题等几方面介绍了如何确保深层搅拌桩在基坑支挡中的施工质量。     

压力注浆在坝基防渗工程中的应用

介绍了压力注浆技术在水质大坝基础防渗工程的施工方法，施工工艺流程与配套的设备，并对保证施工质量采取和具体的施工质量进行了分析。     

八盘岭公路隧道口部软弱围岩施工技术

八盘岭公路隧道全长1600m，掘进断面66m~2。本文根据隧道工程口部地质条件，整个隧道围岩稳定性差和施工难度大的特点，提出了口部掘进施工方法，地面和硐内加固支护方案、光面爆破设计，围岩监控测量技术等，以及突破口部难关后，采用的全断面一次掘进施工方法，均取得了良好效果，为保证按期完成施工任务打下了良好的基础。     

粉砂层地质条件下桥梁基础施工技术

结合萧甬复线东洋江桥基础施工，重点介绍了在粉砂层地质条件下，不排水吸泥下沉沉井、水下封底砼的施工方法、步骤。此施工方法在类似地质条件下值得借鉴。     

CSAMT 法在辽西康杖子区深部探矿中的应用

可控源音频大地电磁法(CSAMT)具有探测深度大、横向分辨率高、抗干扰能力强的特点,在深部找矿勘探中有着重要的指导意义。肖家营子铜钼矿床是辽西地区一个大型矽卡岩型金属矿床,大部分矿体是隐伏矿体,矿区外围的康杖子区与本区有相似的成矿地质环境,成矿地质条件优越.矿体与围岩电性差异明显,通过应用CSAMT,矿体具有低电阻特点,根据成果推断解释,对深部有利成矿部位进行了钻探验证,取得了理想的探矿效果,在矿区外围取得第二深度空间找矿重大突破。     

Geography in general education in Nigeria

This paper traces the development of geographic education in Nigeria and examines the views of geographers, other academics, students and the public at large about the importance of geography. Geography's value is immense despite the non-professional nature of the discipline. Nevertheless, there is a need to define geography's status and ensure career prospects for students. The Nigerian Geographical Association (from classroom teaachers to top geographers) must promote geography, improve its status in schools and universities, and continuously restructure its content and methods to address pertinent social needs.     

Trends in landslide occurrence in Nepal

Nepal is a mountainous, less developed kingdom that straddles the boundary between the Indian and Himalayan tectonic plates. In Nepal, landslides represent a major constraint on development, causing high levels of economic loss and substantial numbers of fatalities each year. There is a general consensus that the impacts of landslides in countries such as Nepal are increasing with time, but until now there has been little or no quantitative data to support this view, or to explain the causes of the increases. In this paper, a database of landslide fatalities in Nepal has been compiled and analysed for the period 1978–2005. The database suggests that there is a high level of variability in the occurrence of landslides from year to year, but that the overall trend is upward. Analyses of the trends in the data suggest that there is a cyclicity in the occurrence of landslide fatalities that strongly mirrors the cyclicity observed in the SW (summer) monsoon in South Asia. Perhaps surprisingly the relationship is inverse, but this is explained through an inverse relationship between monsoon strength and the amount of precipitation in the Hill District areas of Nepal. It is also clear that in recent years the number of fatalities has increased dramatically over and above the effects of the monsoon cycle. Three explanations are explored for this: land-use change, the effects of the ongoing civil war in Nepal, and road building. It is concluded that a major component of the generally upward trend in landslide impact probably results from the rural road-building programme, and its attendant changes to physical and natural systems.     

花岗岩地区地下水水文地质特征分析

通过对泰安市岱岳区花岗岩地区地下水的形成条件、地下水类型、分布状况、水文地质特征以及地下水补给、径流、排泄条件的分析,指出了花岗岩地区供水方向。     

Recent advances in aquaculture in Japan

Conclusions During the last ten years, aquaculture, especially mariculture has undergone remarkable expansion to counter-balance the gap between the supply and demand of fishery products in Japan. Its expansion has also been supported by the traditional preference of the Japanese people for seafood. Mariculture is now being forced to change its structure due to adverse economic circumstances such as the rise in the cost of energy, feeds and other materials for culture, low market prices, deterioration of environmental conditions, and many other factors. Before these constraints can be resolved, advanced scientific knowledge and technologies must be integrated to develop new types of aquaculture. Expansion of maricultural activities to more open-sea and off shore areas would be one route to follow. Technologies for the development of formulated diets not only for young but also for adults and larvae, establishment of feeding standards, prevention of epizootic diseases must support the establishment of modern aquaculture.The culture-based fisheries, or marine ranching, is becoming a subject for further development in Japan. Much research work has been conducted with a great degree of governmental support. Establishment of a net work of seedstock production farms has made it possible to carry out releasing experiments on a large scale. A newly integrated restoration system could be developed on the basis of these experiments, even though the profits resulting from the artificial restoration of stocks is not thouroughly verified at present. The commencement of a national scheme for culture-based fisheries would be a manifestation of the enthusiasm of the Japanese fish industry.     

2010年的美国铀矿业

2010年,美国铀矿总共施工7 209个钻孔,总进尺1 493 520 m;生产铀1 628.55 t;铀矿业总支出费用为2.773亿美元,其中铀矿地勘费支出为3 450万美元,占铀矿业总费用的12.44%。铀矿地勘钻探费用为4 460万美元,占铀矿业总费用的16.08%。     

地下水环境中的硫代砷研究进展

硫代砷是富硫化物地下水中砷的重要形态,对环境和人类健康有潜在威胁。目前硫代砷研究程度尚低,本次主要针对国内外地下水（地热水）中硫代砷的存在形态,水文—生物—环境地球化学过程,样品保存,定量检测方法等方面进行研究。结论如下:pH, 氧化还原电位,硫化物含量和微生物作用等是影响地下水中硫代砷稳定存在和形态分布的重要因素。含铁矿物能与水中的硫代砷形成配位键对其进行吸附,吸附性普遍弱于（亚）砷酸盐,因此,地下水中硫代砷可能表现出更强的迁移性。用于硫代砷检测的自然水样在采集中可采取过滤,速冻,厌氧和低温短期保存的操作流程,以减缓该形态的转化甚至消失。色谱联用ICP-MS系统可用于自然水样中硫代砷的分离定量检测,紫外—可见分光光度法和X射线吸收光谱法在不同场景下也可对硫代砷进行定量和表征分析。地热水和浅层地下水中均可能存在硫代砷,由于水样中硫代砷的不稳定性,室内检测和分析难以准确反映现场过程,因此,野外样品保存技术和现场检测方法的更新可能在未来有更大研究空间,值得进一步探索。     

环境地球化学研究近十年若干新进展

环境地球化学学科在中国生态文明和美丽中国建设、国际环境公约履约及过去全球变化研究中发挥着越来越大的作用.本文简要回顾了中国过去十年在环境地球化学领域的部分研究进展,介绍了汞、持久性有机污染物和其他重金属污染物长距离传输研究进展;总结了汞、镉、锑、铊等非传统稳定同位素在地表生物地球化学循环过程中的同位素分馏规律及污染来源...     

MapSUV系统在惠民县土地勘测定界中的应用

该文介绍了土地勘测定界的专业背景知识及MapSUV的相关信息,阐述了MapSUV系统在惠民县土地勘测定界的应用,以及外业获取数据及内业处理的主要工作方法,最后对该系统在土地勘测定界中的应用前景进行了展望。