岩土体深层水平位移测试间断期的位移增量算法

发布时间：2018-12-13 09:17

【摘要】：岩土体深层水平位移测试过程中经常面临更换测斜仪的问题,个别情况会产生测试数据不连续的测试间断现象,常规算法不能计算测试间断期的位移增量。依据滑动式测斜仪的测试原理和应用条件提出了新的测斜数据算法,即相邻测量的逐点增量对接法和单次测量的绝对位移法。相邻测量的逐点增量对接法是根据测试间断期先后2次来自不同仪器的测试数据来计算间断期的位移增量,原理简单,操作方便;单次测量的绝对位移法是仅根据间断期后单次测量数据算得间断期末不同深度的累计位移,无需间断期前的测量数据。工程实例应用表明:2种方法均能实现测试间断期的位移增量求解,二者的计算结果一致。
[Abstract]:In the process of measuring deep horizontal displacement of rock and soil, it is often faced with the problem of replacing the inclinometer. In some cases, the discontinuity of test data will occur, and the conventional algorithm cannot calculate the displacement increment of the test discontinuity period. Based on the testing principle and application conditions of the sliding inclinometer, a new algorithm for measuring slope data is proposed, that is, the incremental docking method for adjacent measurements and the absolute displacement method for single measurement. The point-by-point incremental docking method for adjacent measurement is to calculate the displacement increment of the discontinuous period according to the test data from different instruments two times in succession. The principle is simple and the operation is convenient. The absolute displacement method of single measurement is to calculate the accumulative displacement of different depth at the end of the discontinuous period only according to the single measurement data after the discontinuous period, without the measurement data before the discontinuous period. The application of engineering examples shows that both methods can be used to solve the displacement increment of test discontinuities, and the results are consistent with each other.
【作者单位】：河海大学岩土力学与堤坝工程教育部重点实验室;河海大学道路与铁道工程研究所;河海大学岩土工程科学研究所;国家知识产权局专利局专利审查协作江苏中心;
【基金】：国家自然科学基金项目(41272327) 江苏省自然基金项目(BK2011747) 广东省交通科技重点项目(2009-01-001)
【分类号】：U412.2

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