共查询到18条相似文献,搜索用时 78 毫秒
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以南宁市邕江大桥加固工程为背景,介绍了LSD液压提升系统应用于挂梁整体大位移提升的施工方案和技术特点,工程实践表明其具有同步控制、自动化程度高、施工灵活的优越性,能提高工程施工的效率和安全可靠性 相似文献
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预应力技术在我国的成功开发与推广应用,为传统的吊装技术的进步提供了技术支持,本简要介绍了液压提升技术的研究开发与工程应用。 相似文献
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本文通过倒装法施工实例,阐述液压提升技术在倒装法构件安装工程中的特点和优越性。 相似文献
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本文介绍了液压起重装置在桂江三桥拱肋提升竖转工程中的应用及其技术关建。 相似文献
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Li-zhong Wang Zhan Wang Ling-ling Li Jin-chang Wang 《Tunnelling and Underground Space Technology incorporating Trenchless Technology Research》2011,26(6):674-685
In China, the vertical lifting method is typically applied when building the water intakes of hydraulic tunnels in the seabed in China. In this work, a 3D finite element method was employed to investigate the dislocations of joints, the stress distribution of segments and the bolt inner force during the lifting of the standpipe. Because the loading conditions of the tunnel during different construction phases vary greatly, a numerical model with three loading phases corresponding to different construction phases was established. The radial and circumferential bolts and the interactions between segments and standpipes were investigated. The critical issues associated with the design and construction of hydraulic tunnel, including the inner force of liners, the inner force of bolts and joint dislocations were vigorously analyzed. The results indicated that due to the jacking up of ceiling segments and the imposition of the lifting force, the maximum dislocation, which occurred at the crown between the open ring and the adjacent ring, increased with the lifting force. Although the maximum dislocation was within the allowable range, the maximum inner force of bolts caused by dislocations was close to the ultimate strength. As a result, it was concluded that special attention should be given to controlling of the lifting force, and protection measures should be adopted to reduce dislocations. 相似文献
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液压提升平台翻模施工技术,具有施工速度快、简单安全、质量好、经济效益高等特点,是近年来逐步开发的一项新的施工技术,具有较好的应用前景和推广价值.本文以洛湛线良梧特大桥为例,结合工程现场施工实际,介绍了液压提升平台翻模施工技术. 相似文献
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主要探究了分体液压升降爬架在建筑施工中的应用情况,从爬架的构造和设计原理简介及荷载计算方面入手,讨论了分体液压升降爬架的施工技术,并分析了该新型高端脚手架产生的各种效益,指出其具有安全、高效、经济的优点。 相似文献
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介绍了导轮提升架在某高层建筑工程中的应用情况,从导轮提升原理及构造、架体安装_步骤、施工技术要求等方面进行了论述,指出采用导轮提升架,可减轻劳动强度、增强安全性、节约施工成本。 相似文献
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结合工程概况,分析了(轴~(轴地面出现裂缝和房子向西侧倾斜的原因,针对出现的问题提出了加固方案,并对顶升方案及建筑物纠偏施工技术进行了介绍,以供类似工程参考借鉴。 相似文献