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土工格栅挡墙在堤防工程设计中的应用,土工格栅挡墙设计所应考虑的问题,土工格栅挡墙为城市增加了一道亮丽的景观. 相似文献
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本文介绍了土工格栅石笼这一新的施工工艺在临江市界河堤防中的应用,并通过对堤防各种基础防护型式的对比详细对塑料土工格栅石笼优点、土工格栅这一新型材料的特有性能以及土工格栅石笼的砌筑方法做了说明。 相似文献
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本文主要介绍了土工格栅石笼在应急渡汛当中的应用,通过实际应用,充分体现了土工格栅石笼在施工过程中的特点,为土工格栅石笼在堤防护岸等施工中发挥长期的效应提供了依据。 相似文献
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四川南桠河冶勒水电站水库堆石坝采用土工格栅构成抗震体系,系其在水电工程大坝的首次应用。坝体内部由多层土工格栅组成的堆石坝的抗震体系,抗震效果好,施工简捷、快速,且对堆石坝的填筑施工进度影响很小。由于土工格栅的铺设受气候环境的影响小,尤其适合在恶劣气候环境地区工程中使用。土工格栅比常规抗震体的施工进度快得多,随着土工格栅生产技术的不断发展,采用土工格栅做水工土石坝的抗震体具有推广和应用价值。 相似文献
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土工合成材料在桩承式加筋路堤中的应用现状 总被引:1,自引:1,他引:0
分析了路堤中设置土工格栅对路堤工作性状的影响;分析了土工格栅在桩承式加筋路堤中的具体作用机理;分析了土工格栅对荷载分担比和桩土应力比的影响以及土工格栅对路堤表面不均匀沉降的作用。综合分析后提出了土工格栅在桩承式加筋路堤应用中存在的几个问题。 相似文献
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土工格栅是高速公路建设中常用的一种软基处理施工工艺。工程实践表明 ,土工格栅具有施工方便 ,费用较低 ,应用广泛等优点。结合工程实际 ,对土工格栅如何加固桥头路基做出了分析 相似文献
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介绍了塑料土工格栅产品在四川水利工程中的首例应用。详细叙述了塑料土工格栅技术在引水渠施工中应用的具体方法。 相似文献
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土工格栅的应用现已较为普及,但在重要工程中的应用还很少。在涪陵堤防工程设计中.谨慎地采用了少量的土工格栅,工程效益较好。简单地介绍了该工程设计中的一些经验和体会,希望能为土工格栅的推广与应用提供一些参考。 相似文献
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介绍了土工格栅石笼的功能、特点,对土工格栅石笼在河道应急渡汛工程中应用的经济技术合理性进行了分析。 相似文献
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介绍了长江江新洲堤段应用软体排护岸新型技术的情况,结合长江江新洲护岸工程对软体排施工、工艺、设备作简要叙述。 相似文献
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结合城防堤建设实例,介绍了加筋土挡墙的施工工艺和应用特点,并提出加筋土技术应用在城防堤有利于城市景观工程的建设. 相似文献
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Fish and lampreys were sampled by electrofishing in the Pilica River tributaries (the Vistula catchment, Poland) in 1992–1994 and 2003–2005. The patterns in fish assemblages were recognized on the basis of fish biomass using Kohonen's self‐organizing map (SOM) technique, combined with the indicator values (IndVal) for assessment of associations of fish species with particular SOM regions (and respective environmental conditions). Although the fish samples were clustered mostly according to the stream features (size, regulation, and pollution), a weaker temporal gradient indicated a recovery of the ichthyofauna in some smaller streams. The larger tributaries served as sources of colonisers for both the Pilica and the smaller streams. The differences between SOM subclusters in the quality of the aquatic environment were effectively presented with certain biological measures, including the dominances of potentially large species and non‐psammophilous rheophils, which are proposed as good bioindicators. It is worth mentioning that some closely related species (ide and dace, silver bream and bream, golden loach and spined loach, and Ukrainian lamprey and brook lamprey) were significantly associated with different SOM regions (and respective environmental conditions), perhaps in this way avoiding competition. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
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吹填区内的水土流失、风蚀现象会给压浸工程和百姓的生产、生活带来一定的影响.采用合理的种草绿化工程措施加以治理,使水土流失得到有效地控制,生态环境得到明显地改善.通过永安堤(浴港泡泉区)吹填区种草绿化工程的实践,详细介绍了种草绿化工程施工和监理方法. 相似文献
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REEXAMINATION OF THE ROLE OF VERTICAL CIRCULATION IN SEDIMENTATION IN THE YELLOW AND EAST CHINA SEAS 总被引:2,自引:1,他引:1
Hu Dun xin Pang Chong guang Institute of Oceanology Chinese Acadamy of Sciences Qingdao China Key Laboratory of Marine Science Numerical Modelling State Oceanic Administration Qingdao China 《水动力学研究与进展(B辑)》2001,(3)
1 . INTRODUCTIONTherearethreebigriverstheYellow ,YangtzeandPearlrunningfromthecontinentofChinatoChinaSeas.TheYellowRiveremptiessedimenttotheBohaiSeawithanamountof 0 .7× 1 0 9tonsperyear (Huetal.1 998andPangetal.1 999)withahistoricannualmeanof 1× 1 0 9tons (Xieetal.1 980 ;Mil… 相似文献
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THE ANALYSIS OF THE STEADY FLOW IN THE FLOW CHAMBER 总被引:2,自引:1,他引:2
Liu Zhao-rong Jiang Wei-yuan Huo yan Qin Kai-rong Li Xi-xi Biomechanics Laboratory Fudan University Shanghai P.R. China 《水动力学研究与进展(B辑)》1997,(2)
A flow chamber whose length and width are far larger than its own height was widely used to study cell's mechanical behavior in vitro , especially the cell's adhesion property. The paper analyzed the flow field of the flow chamber in detail, and gave the analytical expressions of the velocity, pressure and shear stress when the fluid flowed in and out the chamber through a small crevice. Then, full and clear discussion of flow field was made. Also the velocity field was measured by an Ultrasonic Doppler Velocity-metre. It was found that the experimental values coincided with the theoretical values. These results were important to study the cell's mechanical behavior in vitro . 相似文献
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浅议"线性规划"方法在土方工程施工中的应用 总被引:1,自引:0,他引:1
在土方工程施工中,往往在一个施工区域同时存在挖区、填区,在施工前期应进行土方调配设计,确定填挖方区土方的调配方向和数量,达到缩短工期和降低成本的目的.以青山湖电排站扩建工程为例,实例说明采用“线性规划”方法调配土方的实用性和科学性。 相似文献
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在总结“九五”期间江西省水利工作的基础上,全面分析了21世纪初江西水利面临的机遇和挑战,并提出了全小水利工作指导思想、总体目标和战略措施。 相似文献