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本文对于渝怀线古城南平山路堑边坡所发育山体滑坡形成的地貌条件、岩石条件、构造条件、气候条件以及施工技术条件进行了初步的分析与研究 ,根据先期发生的小型山体滑坡 ,从地质学的角度进行了研究 ,并结合现场的实际情况 ,综合对比了几种治理措施的优劣 ,提出了较好的治理方案。 相似文献
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Cultural models of the coast affect—and are affected by—our marine ethics, frameworks for coastal ownership, and management practices. The coast can be seen as an ecosystem with intrinsic values, a commodity that can be bought and sold, a community place where people meet, a landscape with aesthetic appeal, a productive system that generates profits, a property to be managed, or a spiritual realm that relates to proper order and reverence. Each of these cultural constructions interacts with the others and this can create conflicts over rights and responsibilities. Each construction has implications for who should manage the coast, to what ends, and by what means. This article explores the negative and positive implications of seven cultural models to the Australian coast and makes suggestions about the value of Australian Indigenous and sustainability perspectives to a durable human relationship with the coast. Examples are drawn from recent coastal developments in Australia, such as Native Title debates, the marine protected area process, and Coastcare. 相似文献
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赵亮 《华东交通大学学报》2011,28(4):106-111
以海峡西岸经济区20个地区为研究对象,分析了海峡西岸经济区核心区与经济腹地的经济发展差异现状,总结了影响海峡西岸经济区区域经济协同发展的主要因素,包括核心城市辐射带动能力不足,政府部门政策协同程度不高.研究认为,海峡西岸经济区建设应该走多中心共生协同发展道路.同时,各地区应该因地制宜,实现差异化道路发展,形成核心区与经... 相似文献
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天津港座落在典型的淤泥质海岸上,曾经是一个世界闻名的严重淤积港口,泥沙问题一度制约了港口的发展。通过长期的测验研究,掌握了水动力和泥沙的基本运动规律,提出了一系列的治理措施和半经验半理论公式,在工程建设中取得了很好的成效,使天津港逐渐发展成为今天的一个国际化、轻淤积、深水大港。 相似文献
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针对岩基海岸某港10万t级散货泊位的重力式码头结构,进行沉箱和方块2种结构型式方案的技术经济比较和造价分析.比选分析结果表明,随着水深的增加、码头结构断面加大,方块与沉箱相比其整体性不足的缺点越发凸显,本工程重力式码头选用沉箱结构型式更为合理. 相似文献
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陈锦辉 《广东交通职业技术学院学报》2006,5(2):52-53,56
在高速公路中,挖孔抗滑桩是高边坡防护、滑坡治理普遍采用的形式,但由于挖孔抗滑桩是在特殊工程背景下,它的施工措施自有其特殊的地方,现本文浅谈一点看法。 相似文献
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On the morphological long-term development of dumped material in a low-energetic environment close to the German Baltic coast 总被引:2,自引:1,他引:1
Karina Stockmann Rolf Riethmüller Martina Heineke Gerhard Gayer 《Journal of Marine Systems》2009,75(3-4):409-420
The development of the bed bathymetry of an experimental dumping area was followed over three-and-a-half years by means of multibeam echosounder techniques. Two types of material were discharged in the bight of Mecklenburg in the Baltic Sea in approximately 20 m of water depth. One set of the discharges was 2900 m3 of glacial till and the other set was a 2400 m3 mixture of glacial till, sand and minor amounts of cohesive matter. Only approximately 2500 m3 (86%) of the glacial till and 1500 m3 (63%) of the mixed soil materials were deposited on the seabed. This means that already during the dumping process a considerable part of the sediment material drifted away. The glacial till formed crater-like rings of 30 m diameter with peaks up to 1.4 m above seabed, whereas the spatial structure of the mixed soil material was somewhat more diffuse, but with similar magnitudes in the peaks and troughs.The morphological changes were small and their quantification required a high measuring precision in the order of few cm in the vertical. The dominant processes of surface deformation was flattening of peaks and filling of troughs. The speed of this process decreased with horizontal scale: structures of less than 4 m horizontal extension had a trend to disappear within less than five years, whereas structures of larger than 8 m extension showed little change and are estimated to remain detectable for many decades. In contrast to the reworking of the matter inside the dumping structures, no net transport of material out of the dumping area could be detected. Extrapolating the observed morphological changes into the future it is estimated that without significant decrease in internal shear strength of the disposed till the structures will persist for at least 70 years. This can be attributed to the high internal stability of the dumped glacial till and the low hydrodynamic forces present at the seabed in this region. 相似文献