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251.
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Abstract State coastal zone management programs are responding to the potential impacts of accelerated sea level rise through a wide range of activities and policies. This article provides a brief overview of the Coastal Zone Management Act and other federal laws that provide the basis for coastal state regulatory activities. It surveys the level of response to sea level rise by state coastal management programs in 24 marines coastal states, from formal recognition to implementation of policies addressing the issue. Individual state CZMP responses and policies that have been implemented or proposed are categorized. The adaptation of sea level rise to ongoing institutional objectives is discussed and policy constraints and trends are summarized. 相似文献
253.
现役高桩码头水平面桩头部分由于恶劣环境因素导致的腐蚀等破坏令人担忧。通过对2003年日本宫城县冲地震和1995年阪神大地震中港湾高桩码头的水上和水下震害调查,分析了两次地震中出现的高桩码头震害的原因,并根据计算分析结果探讨了其破坏机制。通过对现有高桩码头结构导入减震橡胶支座后的地震反应分析发现,减震支座的导入将有利于提高高桩码头的抗震能力,使桩上部固定端处的最大弯矩减小到未减震前的1/3。 相似文献
254.
Transportation system infrastructure often experiences severe flood-related disruptions such as overtopping, erosion, and scour. The ensuing damages can result in enormous direct and indirect economic losses to the traffic network and consequently the individuals through conditions like inaccessibility to commuters and reduction in traffic safety. Many studies have claimed that a robust transportation system could significantly prevent such consequences from natural hazards such as floods, highlighting the importance of robustness measures that could be used by decision-makers to properly manage flooded transportation system. Most available measures related to network robustness assessment are qualitative, and while some recent studies have focused on such evaluation using quantitative assessment approaches related to environmental or social-economic operations, they lack the holistic view towards robustness under flood events. This study develops a composite multi-scale transportation-system robustness model considering flood hazards by synthesizing geographical damage recognition, topological functionality analysis, network operation evaluation, and traffic-user loss estimation. This integrated model has been applied in a real-world highway network, mainly revealing that a given intensive flood occurrence at different locations may result in a variety of after-flood disruptions in the transportation network. To assist the asset owners with developing more reasonable prevention and recovery plans, the developed multi-scale robustness index presents both visible multi-denominational flood consequences and an overall post-event transportation-system robustness indicator. 相似文献
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256.
简要阐述了什么是危害辨识;明确了危害辨识、风险评价和风险控制的重要性,分析了如何掌握危害辨识、风险评价和风险控制的时机;讨论了危害辨识、风险评价和风险控制的基本步骤和过程;确定了如何进行危害辨识、风险评价和风险控制。有助于消除、限制、处理、转移风险。 相似文献
257.
张志耕 《内蒙古公路与运输》2006,(1):29-33
通过对内蒙古老集高速公路K 290 360~K 290 480段路基病害进行分析,在物探与钻探的基础上,给出了具体的处治方法,最后采用瑞雷面波法对处理后的路基质量进行了检测。 相似文献
258.
高边坡在山区高等级公路施工中较为常见。只有通过科学设计,并根据高边坡的特点选择合理的施工方法.才能避免因高边坡不稳定给工程带来的各种危害。 相似文献
259.
为了给杭州北站长期堆置的固体废弃物寻求一种适当的处置方法,需要对这些固体废弃物进行定性。依照GB 5085—1996危险废物鉴别标准,对其进行了危险性鉴别检测,包括腐蚀性鉴别试验、浸出液毒性鉴别试验及急性毒性初筛试验。试验检测结果表明没有一项指标满足作为危险废物的特性条件,排除了危险废物的可能性,从而确定其可以作为一般性固体废弃物处置。 相似文献
260.
ALF HAKON HOEL 《Coastal management》2013,41(1):25-36
The interplay between the biodiversity regime and fisheries management and conservation regimes is not a critically important phenomenon at this point in time. For now, the institutions most relevant for the management of marine and coastal biodiversity are entrenched in conventional fisheries management structures. Biodiversity-oriented institutions appear to be less in touch with the practical aspects of resource management. The most significant interplay occurs at the global level, where several oceans-related regimes appear to be affected by the concerns raised by the CBD. The important question with regard to the longer term, is what impact the creation and operation of the CBD will have on various fisheries regimes in the future. 相似文献