专业英语不均匀沉降混凝土路面应力应变监测.pptVIP

Strain Monitoring of Widening Cement Concrete Pavement Subjected to Differential Settlement of Foundation 地基不均匀沉降下的宽混凝土路面的应力应变监测 Catalog Abstract Keywords Background Main Content Results and Discussion References Abstract This paper describes the use of a sensor based on a fiber Bragg grating (FBG), which is capable of reducing strain transfer errors, to measure the strain features within the top and bottom layers of a cement concrete pavement subject to different degrees of foundation settlement. Based on measured data, the characteristics of the distribution and the variation in the structure strain were analyzed in detail. 本文介绍了基于光纤光栅原理的一种传感器，这种传感器能够减少应变传递误差，并测量顶层和底层受不同程度的基础沉降影响的水泥混凝土路面的应变功能。基于实测数据，详细分析了该结构应变分布的特点及变化规律。 By comparing the measured results with those obtained by means of finite element analysis, the proposed FBGbased sensor assembly was found to be capable of effectively monitoring the strain distribution in a cement concrete pavement,thus proving that the improved optical fiber grating strain sensor is a very promising solution for road pavement structural health monitoring. 通过实测结果与有限元分析的方法比较，可以看出该光纤光栅传感器组件是能够有效地监测的应变分布在水泥混凝土路面，进一步也证明改进后的光纤光栅应变传感器对于路面结构健康监测方面的研究是一种很有前景的解决方案。 Keywords FBG; Sensors; Strain Monitoring ; Cement Concrete Pavement; Differential Settlement of Foundation; The main advantages of optical fiber sensors over conventional monitoring techniques include their immunity to electromagnetic interference, their small size, and lightweight construction, which can overcome the limitations.Optical fiber technology has been widely used for structure monitoring in civil engineering. Many road widening projects quickly saw the appearance of many longitudinal cracks, soon after the completion of construction. Therefore, research into road widening projects has very practical significance. Background This paper mainly describes the use of an FBG sensor to monitor the strain features of a concrete pavement structur