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基于确保公路工程施工质量的重要性,在对影响公路工程材料质量因素及公路常用材料性质和检测项目进行分析的基础上,着重探讨了公路工程材料常用的检测方法以及公路常用材料现场质量控制所采用的几条措施。 相似文献
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笔者结合自己的工作经验和工作体会,主要就工程材料对公路工程质量的重要作用进行了论述,并提出了公路工程材料质量控制的相关措施,目的是为了有效地控制工程质量及检测效果。 相似文献
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沥青路面作为公路工程中的重要组成部分,其质量的好坏直接影响着道路的使用寿命和交通安全。公路施工现场试验检测技术是公路工程质量监控的重要环节,对于实现工程建设管理和质量保障具有重要意义。为确保公路工程建设的质量和安全,现场试验检测技术在质量控制领域中得到了广泛应用。针对沥青路面材料的性能、质量控制、施工工艺等问题,现场试验检测技术为工程监理部门提供了有效的检测手段,极大地提高了施工质量和工程可靠性,因此,开展现场试验检测技术在公路工程中的应用,研究沥青路面的性能和特性,加强施工质量控制,对于保障公路工程的顺利进行和提高公路工程的质量将具有重要意义。通过对沥青路面表面材料配比、压实度、平整度和抗滑性能、完成值和透水性的检测等方面详细分析,从而有效提升检测技术应用的可靠性和有效性。 相似文献
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原材料的质量控制是提高公路工程施工质量的关键。论文介绍了公路工程中原材料质量控制的影响因素和基本要求,分析了公路工程中原材料质量控制中存在的问题,并提出了公路工程原材料质量控制的措施。 相似文献
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本文笔者结合多年的公路工程材料检测工作经验,较为全面地分析了公路常用材料检测的必要性和检测项目、检测方法以及主要质量控制项目等,并提出一些有效控制原材料质量的措施,以供参考。 相似文献
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交通运输行业的建设对于我国经济的快速发展做出了突出的贡献,在交通运输中公路是很重要的一个组成部分,因此,加强公路工程的质量控制工作至关重要,在公路工程的质量控制中试验检测能够起到关键性的作用,本文就针对试验检测在公路工程质量控制中的作用首先介绍了试验检测在公路工程质量控制中的重要性,然后探讨了加强公路工程施工中试验检测工作的措施,最后又介绍了试验检测工作在公路工程质量管理中的具体运用。 相似文献
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对于公路工程质量要采用有效的措施合理控制,就要加强公路工程检测工作,根据检测的结果对公路质量做出判断,对于不当之处采取科学有效的措施解决,这是公路工程建设过程中的重要环节,也是控制整个工程质量的主要方法,需要高度重视。在工程建设的过程实施中,试验检测主要的目的是实施质量控制、进度控制和费用控制。通过采用试验检测的方法,使得材料的使用品质有所保证,施工工艺技术得以改进,施工流程优化,施工质量有所保证。通过合理应用试验检测技术,使得质量控制更加科学有效。本论文以上埔大桥至顶村段公路为例,着重于研究公路检测技术应用与检测的质量控制方法。 相似文献
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Takashi Nakai and Toshinari Tanaka of the Forestry and Forest Products Research Institute in Japan present the results of tests, using the easy handling and reasonable cost technique of fundamental vibration frequency measurement, on larger than usual cross-sections. Modulus of elasticity measurements showed this method to have high possibilities for stress grading, overcoming the size limitations of existing commercial equipment at the saw mill or lumber yard. This paper was first presented at CIB Working Commission W18a in Vancouver in September 1988. 相似文献
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An essential step to assure the proper long-term performance of a geomembrane liner that is in the process of being installed is 100% inspection of the seams to ensure their continuity. This step must be complemented with destructive testing of the seams to ensure their strength and integrity. At the present time, the principal destructive tests of seams involve strategic sampling and testing of the seams in accordance with standard ASTM methods for seam strength in shear and peel modes. This paper describes the seam testing of the different types of geomembranes and discusses specific tests that are used. Also discussed are the variables that are involved in the testing and the requirements that should be stated in the specifications in order to assure full understanding of the acceptance criteria and the requirements of quality control and quality assurance. The results of testing current geomembranes are presented. Finally, some limitations of destructive testing of seams are discussed. 相似文献
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应力波反射法检测桩身完整性应注意的问题 总被引:1,自引:0,他引:1
探讨了应力波反射法检测桩身完整性的基本原理,针对应力波反射法检测桩身完整性过程中常遇到传感器安装与选择、激振器选择及信号采集等问题进行了探讨,并提出了解决这些问题的办法和建议,以推广应力波反射法的应用。 相似文献
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Innovative laboratory testing 总被引:3,自引:0,他引:3
J.S.O. Lau N.A. Chandler 《International Journal of Rock Mechanics and Mining Sciences》2004,41(8):1427-1445
Three laboratory test techniques were developed to study and quantify damage development in loaded rock specimens and to provide data for use in the calibration and solution of numerical models. Damage-controlled tests involved incremental loading–unloading cycles with the stress at volumetric strain reversal (crack damage stress σcd) and elastic properties calculated for each successive cycle. Damage was quantified by measuring the irreversible volumetric strain upon unloading and the degradation of rock strength and elastic properties. In long-term loading tests, a creep stress greater than σcd was applied to the specimen until failure. The time to failure was dependent upon the ratio of the creep stress to σcd, and to confining pressure. It was shown that σcd is a reasonable estimate of the long-term rock strength. Damage was quantified by measuring the degradation of elastic properties through periodic unloading–reloading cycles. The test data were used for the calibration of Itasca's PFC stress-corrosion model. Five types of thermoporoelasticity tests were designed to determine seven of the nine thermoporoelastic parameters required for the modelling of the thermoporoelastic response of rock. Tests were performed by applying increments of confining pressure, temperature or pore pressure on the rock specimen, and measuring the changes in confining pressure, specimen volume and pore pressure. The measured values of five parameters were found to agree reasonably well with the estimated values. 相似文献
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从沥青路面的原材料质量检测、路面压实质量检测和路面使用性能检测等方面,系统阐述了公路工程沥青路面施工现场试验检测技术,以期减少沥青路面病害,提高沥青路面施工质量。 相似文献
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Frieder Schwarz 《Building Research & Information》1974,2(5):292-293
This report on the universal testing chamber at the Weimar Institute of Building Materials, German Democratic Republic, describes the procedures now followed in the GDR to simulate complex conditions which materials are likely to encounter in practice. Dr Schwarz has been especially concerned with this subject in his work at the Institute. 相似文献