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通过理论分析全站仪极坐标法的观测原理,并以断层相似材料模拟试验为例,探讨了全站仪极坐标法在相似模拟试验覆岩运移监测中的应用。研究结果表明:运用全站仪极坐标法观测可准确获得待测点各开采阶段的位移坐标值,计算得到待测点的水平位移及垂直位移。全站仪极坐标法观测可满足相似模拟试验测量精度的要求,能准确地确定断层活化时间,测得断层活化量,反映覆岩运移规律,是相似材料模拟试验中行之有效的观测方法。
Through the theoretical analysis of the observational principle of the total station polar coordinate method and taking the similar material simulation test of the fault as an example, the application of the total station polar coordinate method to the monitoring of the overlying rock movement in the similar simulation test is discussed. The results show that: using the total station polar coordinate observation can accurately obtain the measured point of the mining phase of the displacement coordinates, calculate the measured point of the horizontal displacement and vertical displacement. Total station polar coordinate observation can meet the requirements of similar simulation test accuracy, can accurately determine the activation time of the fault, measured the activation of the fault, reflecting the law of overburden migration, is similar to the material simulation test is an effective observation method.