嘉应学院学报
嘉應學院學報
가응학원학보
JOURNAL OF JIAYING UNIVERSITY
2012年
11期
31-34
,共4页
半参数回归分析法%误差%隧洞变形量%计算模型
半參數迴歸分析法%誤差%隧洞變形量%計算模型
반삼수회귀분석법%오차%수동변형량%계산모형
half parameters regression method%errors%tunnel deformation%calculation model
通过补充随时间连续变化的系统误差分量来分析该误差对变形量计算的影响,运用非线性方法建立了隧洞变形量计算模型.基于实测数据,采用多种方法对隧洞变形监测过程和模型产生的厘米级系统误差进行了消除,提高了现场量测结果的精度.计算结果表明,阻尼最小二乘法、卡尔曼滤波法和半参数回归分析法三种误差消除方法都能满足工程需要,其中半参数回归分析法对隧洞变形的计算结果与实际最为接近,对工程设计具有指导意义.
通過補充隨時間連續變化的繫統誤差分量來分析該誤差對變形量計算的影響,運用非線性方法建立瞭隧洞變形量計算模型.基于實測數據,採用多種方法對隧洞變形鑑測過程和模型產生的釐米級繫統誤差進行瞭消除,提高瞭現場量測結果的精度.計算結果錶明,阻尼最小二乘法、卡爾曼濾波法和半參數迴歸分析法三種誤差消除方法都能滿足工程需要,其中半參數迴歸分析法對隧洞變形的計算結果與實際最為接近,對工程設計具有指導意義.
통과보충수시간련속변화적계통오차분량래분석해오차대변형량계산적영향,운용비선성방법건립료수동변형량계산모형.기우실측수거,채용다충방법대수동변형감측과정화모형산생적전미급계통오차진행료소제,제고료현장량측결과적정도.계산결과표명,조니최소이승법、잡이만려파법화반삼수회귀분석법삼충오차소제방법도능만족공정수요,기중반삼수회귀분석법대수동변형적계산결과여실제최위접근,대공정설계구유지도의의.
The centimeter- level system errors affecting tunnel deformation have been analyzed by supplementation of continuous variation system errors component. Calculation model of tunnel deformation has been established by nonlinear method. Based on measured data, methods were used to eliminate the centimeter - level system errors from the model and observation process. So, the measure precision was improved largely. The results show that the damped least square method, Kalman filter method and half parameters regression method can satisfy the engineer- ing demand. The results of the half parameters regression method are most close to paractical results. The method has guidance significance to engineering design.