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双压力传感器埋入式沉降仪的研制及应用

吴跃东, 李通达, 刁红国, 张鹏, 吴春波

吴跃东, 李通达, 刁红国, 张鹏, 吴春波. 双压力传感器埋入式沉降仪的研制及应用[J]. 岩土工程学报, 2017, 39(s1): 38-42. DOI: 10.11779/CJGE2017S1008
引用本文: 吴跃东, 李通达, 刁红国, 张鹏, 吴春波. 双压力传感器埋入式沉降仪的研制及应用[J]. 岩土工程学报, 2017, 39(s1): 38-42. DOI: 10.11779/CJGE2017S1008
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WU Yue-dong, LI Tong-da, DIAO Hong-guo, ZHANG Peng, WU Chun-bo. Development and application of a new embedded settlement gauge based on dual-pressure sensors[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(s1): 38-42. DOI: 10.11779/CJGE2017S1008
Citation: WU Yue-dong, LI Tong-da, DIAO Hong-guo, ZHANG Peng, WU Chun-bo. Development and application of a new embedded settlement gauge based on dual-pressure sensors[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(s1): 38-42. DOI: 10.11779/CJGE2017S1008
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双压力传感器埋入式沉降仪的研制及应用  English Version

  • 1. 河海大学岩土力学与堤坝工程教育部重点实验室,江苏 南京 210098;
    2. 江苏省岩土工程技术工程研究中心,江苏 南京 210098

详细信息
    作者简介:

    吴跃东(1969-),男,福建省云霄县人,教授,主要从事软基处理与基础工程和岩土工程测试技术的教学和科研。E-mail:hhuwyd@163.com。

Development and application of a new embedded settlement gauge based on dual-pressure sensors

  • 1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China;
    2. Geotechnical Engineering Research Center of Jiangsu Province, Nanjing 210098, China

摘要

    摘要
  • 摘要: 针对传统沉降板在高速公路软基沉降观测中存在干扰施工、操作繁琐等弊端,提出了一种双压力传感器埋入式沉降仪。该沉降仪基于将土体沉降测量转换为对密闭系统内液体压力变化测量的原理,主要由竖向密闭管、基准传感器和路基传感器构成。通过室内试验和现场试验,详细阐述了其在标定、埋设和数据采集等阶段的操作方法。研究结果表明,该沉降仪的测量精度可达2 mm,重复性误差2 mm。与传统沉降板方法相比,其主要优势有：①该沉降仪埋设在土体中,与地面施工互不干扰;②只需分别采集双压力传感器的读数,测量效率高;③可用于工后沉降的长期观测,测量成本低。
    Abstract: Since the traditional settlement plates have adverse effects on the construction with tedious operations, a new embedded settlement gauge based on the dual-pressure sensors is proposed. Based on the principles of transforming the measurement of ground settlement to that of variations on hydraulic pressure in a full-sealed system, the new embedded settlement gauge comprises a vertical sealed pipe, a standard pressure sensor and a core pressure sensor. Both laboratory and field tests are conducted to describe the detailed operation instructions, including calibration, installation and data collection. It is found that the new gauge is applicable with a precision of 2 mm and repetition error of 2 mm. Compared with the traditional settlement plate, it has several significant advantages: (1) It is embedded underground, thus there are no effects on construction; (2) The settlement can be measured only by reading the sensors, resulting in a high efficiency; (3) It can be employed to measure the post-construction settlement, leading to a low cost.
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    • 参考文献(9)
  • [1] WU Yue-dong, DIAO Hong-guo, LIU Jian, et al. Field studies of a technique to mitigate ground settlement of operating highways[J]. Journal of Zhejiang University- SCIENCE A, 2016, 17(7): 565-576.
    [2] 潘林友, 谢新宇. 用曲线拟合的方法预测软土地基沉降[J]. 岩土力学, 2004, 25(7): 1053-1058. (PAN Lin-you, XIE Xin-yu. Observational settlement prediction by curve fitting methods[J]. Rock and Soil Mechanics, 2004, 25(7): 1053-1058. (in Chinese))
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    [5] 张阿峰. 电磁式自动化沉降仪测尺的改进技术[J]. 水力发电, 2012, 38(2): 86-88. (ZHANG A-feng. Improvements on the staff of electromagnetic automatic settlement gauge[J]. Water Power, 2012, 38(2): 86-88. (in Chinese))
    [6] 李克绵, 张文东, 刘天鹏, 等. 振弦式沉降仪在双沟水电站混凝土面板堆石坝中的应用[J]. 水电自动化与大坝检测, 2012, 36(3): 58-60. (LI Ke-mian, ZHANG Wen-dong, LIU Tian-peng, et al. Application of vibrating wire settlement gauge in concrete face rockfill dam of Shuanggou Hydropower Station[J]. Hydropower Automation and Dam Monitoring, 2012, 36(3): 58-60. (in Chinese))
    [7] 杨晓明, 马亚兰. 沉降仪在国内外现状的描述[J]. 甘肃科技, 2009, 25(11): 66-69. (YANG Xiao-ming, MA Ya-lan. Settlement instrument in the description of the status quo at home and abroad[J]. Gansu Science and Technology, 2009, 25(11): 66-69. (in Chinese))
    [8] 李 敏, 李粤南, 林福林, 等. 新型软基沉降观测装置的安设与维护[J]. 探矿工程 (岩土钻掘工程), 2002(增刊1): 102-103. (LI Min, LI Yue-nan, LIN Fu-lin, et al. Settlement observation device of the new soft foundation installation and maintenance[J]. Exploration Engineering: (Rock and Soil Drilling and Tunneling Engineering), 2002(S1): 102-103. (in Chinese))
    [9] 李 莉. 水管式沉降仪应用技术研究[J]. 公路与汽运, 2007(1): 97-98. (LI Li. The technology research of tube settlement gauge[J]. Highway and Motor, 2007(1): 97-98. (in Chinese))
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出版历程
  • 收稿日期:  2016-11-27
  • 发布日期:  2017-11-19

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