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锚杆静压桩在既有建筑物地基加固中的应用 总被引:1,自引:0,他引:1
周清 《黄石理工学院学报》2003,19(6):1-4
锚杆静压桩技术是锚杆和静力压桩二项技术巧妙结合而成的一种桩基施工新工艺,是一项地基加固处理新技术。通过回顾锚杆静压桩二十多年的发展应用,说明该技术具有广阔的发展前景。 相似文献
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以兰永项目孔家寺黄河特大桥主桥深水承台基础的成功修建为背景,介绍了24m长钢板桩在深水急流软弱砂层条件下的施工工艺。该方法具有施工简单、快捷、成本较低等特点,可为同类施工环境下深水基础钢板桩围堰方案设计和施工提供借鉴。 相似文献
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结合高速公路工程实例,介绍了CFG桩的特点、施工工艺和控制要点,针对施工提出了与常规不同的混合料塌落度和拔管速度,对CFG桩的施工和推广具有一定的借鉴意义。 相似文献
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静压桩基础施工是通过静力压桩机械设备以其自身重量和机架上的配重提供作用力,并通过液压系统施加压力在桩顶或桩身上,将桩压入地层中的沉桩工艺。文章阐述了静压桩在施工过程中的机理,对工程常见质量问题进行了分析,并提出了一些处理方法。 相似文献
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地基基础工程施工前,根据打(沉)桩方法的不同,钢筋混凝土预制桩基础施工有锤击沉桩法、静力压桩法及振动法等,以锤击沉桩法和静力压桩法应用最为普遍。钢筋混凝土灌注桩是一种直接在现场桩位上就地成孔,然后在孔内浇筑混凝土或安放钢筋笼再浇筑混凝土而成的桩。按其成孔方法不同,可分为钻孔灌注桩、沉管灌注桩、人工挖空和挖空扩底灌注桩。 相似文献
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Brand and Quantity Choice Dynamics Under Price Uncertainty 总被引:2,自引:0,他引:2
We develop a model of household demand for frequently purchased consumer goods that are branded, storable and subject to stochastic price fluctuations. Our framework accounts for how inventories and expectations of future prices affect current period purchase decisions. We estimate our model using scanner data for the ketchup category. Our results indicate that price expectations and the nature of the price process have important effects on demand elasticities. Long-run cross price elasticities of demand are more than twice as great as short-run cross price elasticities. Temporary price cuts (or deals) primarily generate purchase acceleration and category expansion, rather than brand switching. 相似文献
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Charles J. Whalen 《Journal of economic issues》2016,50(2):584-593
Wallace C. Peterson was an exemplary post-Keynesian institutionalist. He wrote about the foundations of economics in a manner that paved the way for today’s post-Keynesian institutionalism. He analyzed the U.S. economy with a keenness that not only shed new light on the macroeconomic issues of his day, but also put him decades ahead of other economists on the problem of United States’ silent depression. Furthermore, he identified policy issues that continue to spark widespread public interest and discussion. I examine his contributions in each of those areas (foundations, analyses, and policy). 相似文献
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在前人对工期索赔中叠加效应和发散效应的分析与研究的基础上,提出利用模糊网络技术来确定工期索赔额,以减少索赔计算过程中所发生的叠加效应和发散效应,从而提高承包商索赔实现的可能性,并结合工程实例来说明模糊网络计划技术在工期索赔中的应用。 相似文献