半参数法在基坑深层水平位移数据处理中的应用  

Application of semi-parametric model to deep pit horizontal displacement data processing

作　　者：李恒杨[1] 李明峰[1] 汪洋[1] 

机构地区：[1]南京工业大学土木工程学院,江苏南京210009

出　　处：《南京工业大学学报（自然科学版）》2007年第1期78-80,共3页Journal of Nanjing Tech University(Natural Science Edition)

摘　　要：由于国产测斜仪性能不稳定,基坑深层水平位移监测数据中常含有系统误差.若忽视系统误差的影响而直接处理该数据,得到的位移值不能反映基坑的真实变形,从而使采集的数据失去了工程价值.为剔除系统误差,提高后继变形分析的准确性,研究了半参数模型的局部线性估计,并将其应用于基坑深层水平位移数据的处理中,进行实例分析.分析的结果表明,半参数模型是一种良好的抵御系统误差影响的基坑位移监测数据处理模型.Due to the instability of the home made inclinometor, systematic errors often exist in the horizontal displacement data of a deep pit. Without considering the systematic errors, the value of displacement may not be true and the safety analyses will be unreliable. To eliminate the semi-parametrical errors and improve the accuracy of prediction, local linear estimating by semi-parametrical model was discussed in detail and applied to the deep pit horizontal displacement data processing. Finally, a practice example was discussed. The result shows that the semi- parametrical model is a suitable procedure to process the data in deep pit displacement to compensate the systematic errors.

关 键 词：基坑 水平位移 半参数 数据处理 

分 类 号：TB22[天文地球—大地测量学与测量工程]