论文部分内容阅读
深层土体水平位移是软土深基坑施工中一项重要监测内容,尤其是重大基坑工程。文章对其测试过程中经常出现的问题(测斜仪的精度、正反向的确定、测点距选取等)作了较深入的分析。指出应变式测斜仪比伺服加速度计式的精度低,但并非如有的文献所载低近1倍;测点距最好确定为导轮距;给出了确定测斜仪正反向的简便方法。文中还对测斜导管的埋设、埋深,测试数据整理,成果分析与信息反馈等问题进行了探讨,得出一些有益的结论
The horizontal displacement of deep soil is an important monitoring content in deep foundation pit construction of soft soil, especially for major foundation pit engineering. The paper makes a deep analysis of the problems often encountered in the testing process (the accuracy of inclinometer, the determination of positive and negative, the selection of measuring point distance, etc). It is pointed out that the accuracy of strain gauge inclinometer is lower than that of servo accelerometer, but it is not nearly 1 times as low as that in the literature. The best pitch is the guide gauge. Easy way. The paper also discusses the laying of inclinometer pipe, the depth of buried pipe, the sorting of test data, the analysis of results and the feedback of information, and draws some useful conclusions