北京顺义地裂缝带的活动特征及减灾措施

本文详细调查了北京顺义地裂缝带的展布和成灾特征,实测了地裂缝灾害最为严重的橡胶二厂内地裂缝的位置和建筑物破坏范围,并综合已有关于顺义地裂缝成因的研究,认为顺义地裂缝带的防治应以控制地下水的开采为根本措施。基于地裂缝的发育程度及成灾特点,在不考虑构造因素的前提下,提出了橡胶二厂建筑用地规划中安全距离的避让方案,即以主破裂带为中心基准线,西北侧建筑安全距离为12m,东南侧建筑安全距离为16m。     

试论河南省济源西部煤田地质特征及找矿方向

煤是国家高度重视和急需勘查开发的重点能源矿种，后备资源的充足与否，事关国家能源安全。济源西部地区有大面积的石炭、二叠系含煤地层分布，并且含煤层数多，煤层较为稳定，具有较好的找矿前景。通过对济源西部地质特征、煤田聚煤作用、煤系地层及埋藏条件的分析，提出了在该区的找煤方向。     

江苏淮安市地质灾害现状及防治措施研究

概述了研究地质灾害现状及防治措施的意义,阐述了淮安市地质灾害种类、现状及地质灾害易发区的综合划分,对淮安市的地面沉降、滑坡等重点地质灾害提出了相应的防治措施。     

浅谈吉林省企业水平衡测试

本文简述了企业取、用、耗、排各种水量的平衡关系，通过水平衡测试，分析企业用水工艺、用水水平、用水效率以及节水潜力等，对吉林市某企业进行了实例分析，进而提出企业节水措施有关建议。     

The importance of protection and management of Karst water as drinking water resources in Iran

Karst water is one of important potable water especially in arid and semiarid zones. Due to its vulnerability and high sensitivity to pollution, water resources protection is one of important measures to be observed in karst resources management. One case study in the The Maharlu Basin, Iran is discussed. Findings are used to postulate regional guidelines for establishing protection and management measures in important karst pumping fields. Suggested locations for new wells in valleys or depressions should be selected on the basis of specialized hydrogeological investigation. Recommendations for first, second and third degree levels of protection based on European standards are suggested and then defined by model. The first degree protection zone around the pumping field is recommended to be 10 × 10 m². The second degree protection zone should be established to protect primarily from biological pollution. The third degree zone is defined to protect from chemical parameters.     

Standardization of vulnerability maps

Groundwater vulnerability assessment schemes are used for the estimation of potential groundwater contamination at different scales and on different administrative levels. However, the term vulnerability is not standardized and the available methods are not able to give a unique assessment of vulnerability creating thus uncertainty in the interpretation and in further application concerning decision creation processes. To judge the information of vulnerability maps certainly and to value the general trends of vulnerability assessment of different methods, four different vulnerability methods of the parametric system group have been applied on a karst area in southwestern Germany to perform a comparative assessment and correlation of these vulnerability assessment methods, namely DRASTIC, PI, EPIK, and GLA. It is shown that by means of simple statistical considerations the first highly different vulnerability maps could be made more coherent after reclassification. The reclassified vulnerability assessments show a more consistent vulnerability distribution pattern and provide the possibility of area-wide validation of the maps as the chosen vulnerability classification is theoretically connected to the mean transit time of percolation water and is largely independent of the applied vulnerability assessment method.     

贵州省新寨工程滑坡成因及治理措施

新寨工程滑坡位于贵州省三凯(三穗-凯里)高速公路新寨隧道进口处。由于隧道进口前段路堑边坡和隧道明洞段挖槽施工,导致位于线路左侧的强风化变质岩斜坡失稳,发生大范围工程滑坡,公路施工一度暂停。经滑坡专项勘察后,采用预应力抗滑桩和预应力锚索框架对滑坡进行治理,才使该段公路建设得以顺利完成。     

计算机网络系统的雷电防护

分析了雷电对计算机网络系统的侵害，提出了防护措施。     

气候变化国家评估报告(Ⅱ):气候变化的影响与适应

Significant and various impacts of climate change have been observed in China, showing both positive and adverse effects, dominantly the latter, in different sectors and regions. It is very likely that future climate change would cause significant adverse impacts on the ecosystems, agriculture, water resources, and coastal zones in China. Adoption of adaptive measures to climate change can alleviate the adverse impact, therefore such measures should be incorporated into the medium-and long-term national economic and social development plans. Because China has done relatively limited research on impact assessment and our understanding of climate change is incomplete, the current impact assessment methodologies used and results obtained contain many uncertainties. To reduce the uncertainties and develop effective and practical climate change adaptive measures in China, it is necessary to emphasize regional case studies on adaptive measures, enlarge the scope of climate change research, and strengthen the assessment of the impacts resulted from extreme weather/climate events.     

避雷针(带)保护范围的计算

通过一工程实例,对屋面避雷针(带)保护范围的计算方法进行探讨。由于对滚球法的基准面选取不同,从而影响到最终计算结果。