静压桩贯入试验硅压阻式传感器的研制及应用
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国家自然科学基金资助项目(51778312, 41502304); 山东省重点研发计划资助项目(2017GSF16107); 山东省自然科学基金资助项目(ZR2016EEP06)

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Development and Application of Silicon Piezoresistive Sensors for Jacked Pile Driving Test
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    摘要:

    根据静压桩贯入过程中桩端阻力、桩土界面土压力和孔隙水压力测试对传感器的要求,介绍了硅压阻式压力传感器的压阻效应和工作原理。针对尝试采用的模型桩硅压阻式传感器安装工艺,研制了两种出现方式的传感器,并对贯入过程中桩端阻力、桩土界面土压力和孔隙水压力进行了测试。试验结果表明,硅压阻式压力传感器成活率高达100%,模型桩硅压阻式传感器安装工艺可行,测试结果准确、可靠。硅压阻式传感器可以应用到静压桩贯入模型试验中。

    Abstract:

    Based on the need of testing on resistance at pile end, lateral pressure and pore water pressure of interface between pile and soil in jacked pile driving, the piezoresistive effect and working principle of silicon piezoresistive sensors were introduced. Aiming at the installation process of model pile silicon piezoresistive sensor, two kinds of sensors were developed to test the resistance at pile end, lateral pressure and pore water pressure of interface between pile and soil in jacked pile driving. The experimental results showed that the survival rate of silicon piezoresistive sensors had a survival rate of 100%, and the installation process of the model pile silicon piezoresistive sensor was feasible, the test results were accurate and reliable. The silicon piezoresistive sensors can be applied to the jacked pile driving model test.

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王永洪, 张明义, 张春巍, 白晓宇, 苗德滋.静压桩贯入试验硅压阻式传感器的研制及应用[J].压电与声光,2017,39(6):843-847. WANG Yonghong, ZHANG Mingyi, ZHANG Chunwei, BAI Xiaoyu, MIAO Dezi. Development and Application of Silicon Piezoresistive Sensors for Jacked Pile Driving Test[J]. PIEZOELECTRICS AND ACOUSTOOPTICS

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  • 在线发布日期: 2017-11-24
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