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Research purposes: A new detection method with the computer, the total station and senor technologies is presented for control of the elevation of the ballastless track of high-speed railway. By using the new control technology, the control of elevation of the ballastless track of high-speed can be achieved during construction. Meanwhile, the detecting efficiency can be enhanced, the construction schedule can be speeded up, the measurement and labor costs can be cut, and the one-touch operation and good visibility can be achieved by using the new measurement and mathematical model built with software system. Research conclusions: (1) Application of the fast detection system for the foundation plate of the ballastless track of high-speed can much enhance the construction measurement efficiency and facilitate the quality control during construction of foundation plate. (2) The detailed and objective data can be provided for the intermediate acceptance, and the detection methods with the independent intellectual property right have been formed during the research. (3) The combined test way and method are found for the relative and absolute benchmark measurements, and it fills the technological blank in this field and promotes the innovation and development of the automatic measurement equipment for construction of high-speed railway in China. (4) The detection system presented in this paper solves the quality control problem in construction of ballastless track of high-speed railway and can provide the reference to the similar project. 相似文献
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浅析湿陷性黄土地区路基常见病害及处理措施 总被引:2,自引:0,他引:2
文章分析了湿陷性黄土地区路基的常见病害及其成因,阐述了湿陷性黄土地区路基工程的综合处理措施,为湿陷性黄土地区道路设计施工提供参考。 相似文献
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文章基于对钦州保税港吹填土地基地质情况的深入调查,阐述了管道开挖与回填的主要技术问题,并通过对比分析当前各种管沟埋设方案的优缺点,针对未经地基处理的地段开挖埋管,提出采用钢板桩+振动水密法综合处治的新思路,为吹填土地区或高水位软土砂基管道开挖埋设方案的选择提供技术参考。 相似文献
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分析灰色GM(1,1)预测模型存在的理论缺陷,指出灰色GM(1,1)预测模型虽可用于小样本基础数据预测,但对基础沉降一类随机性强、波动性较大的数据拟合质量较差,预测精度降低。因而,提出利用马尔可夫链修正神经网络模型,其计算过程为:首先建立神经网络动态拟合模型作为基础沉降变化的基准线,在此基础上应用马尔可夫链确定系统状态转移概率矩阵,最后通过系统状态划分样本值与模型拟合值之间的残差及中误差等指标分析计算,最终完成基础沉降的准确计算,该模型应用于基础沉降工程实例运算,取得较好效果。 相似文献
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注浆法在处理既有构造物地基中的应用 总被引:1,自引:0,他引:1
阐明劈裂注浆和压密注浆处理地基的机理,并介绍其在实际工程中处理既有构造物地基的应用。 相似文献
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袁二丽 《铁路工程造价管理》2013,28(2):8-10
铁路工程建设中的房屋建筑工程是不可缺少的一部分,其特殊地质区段的房屋地基处理方案,不仅影响到工程造价,而且对保证行车安全起到重要作用。此文以山西中南铁路通道瓦塘至洪洞北湿陷性黄土区段需建12处AT供电方式的AT所和分区所为例,针对各所所处的地质条件,论述可采取的地基处理方案。根据编制的概算和增加的投资,进行造价分析。结论是地基处理增加的费用与地基深度和采用的方案有关,地基越深,施工难度越大,费用相对增加。 相似文献