基于液压静力水准仪的综合管廊沉降监测方法研究

Study on the integrated pipe gallery settlement monitoring method based on hydraulic static level

为了减少外界环境对沉降采集系统的干扰,从液压静力水准仪工作原理分析出发,对液体密度、重力加速度进行补偿,提出采用稳定测点作为基点与被测点进行差分比较的测量方法。利用沉降差分算法能消除大部分外界干扰,同时还提出了增加沉降转点的安装方法,能满足高落差应用环境。研究结果表明,对沉降采集系统进行液体密度、重力加速度补偿并采用沉降差分算法进行计算,能显著提高沉降采集精度。

In order to reduce the interference of the external environment on the settlement acquisition system,based on the analysis of the working principle of the hydraulic static level,to compensate for the liquid density and the acceleration of gravity,a measurement method using a stable measurement point as the base point and a differential comparison between the measured point was proposed.Using the settlement difference algorithm can eliminate most of the external disturbances.At the same time,an installation method to increase the settlement turning point is also proposed,which can meet the high drop application environment.The research results show that the liquid density and gravity acceleration compensation of the settlement acquisition system and the calculation using the settlement differential algorithm can significantly improve the accuracy of settlement acquisition.