河海大学学报(自然科学版)
河海大學學報(自然科學版)
하해대학학보(자연과학판)
JOURNAL OF HOHAI UNIVERSITY (NATURAL SCIENCES)
2013年
6期
511-517
,共7页
李国维%胡龙生%王润%陈达章
李國維%鬍龍生%王潤%陳達章
리국유%호룡생%왕윤%진체장
测斜仪误差%测斜仪测试技术%零点漂移%统一基准线修正法
測斜儀誤差%測斜儀測試技術%零點漂移%統一基準線脩正法
측사의오차%측사의측시기술%영점표이%통일기준선수정법
inclinometer error%inclinometry technique%zero shift%unified baseline correction method
基于测斜仪工作原理,分析了滑动式测斜仪在使用过程中的误差成因;针对测斜仪零点数据漂移问题,分别从零点漂移量恒定和零点漂移量变化两种情况,导出了对应的修正公式,基于统一基准线修正法( UBM),专门针对深孔测斜情况,应用以曲代直简化思想解决零点漂移问题。工程实测数据应用表明,所提出修正方法应用方便,计算结果偏于安全,精度满足要求。
基于測斜儀工作原理,分析瞭滑動式測斜儀在使用過程中的誤差成因;針對測斜儀零點數據漂移問題,分彆從零點漂移量恆定和零點漂移量變化兩種情況,導齣瞭對應的脩正公式,基于統一基準線脩正法( UBM),專門針對深孔測斜情況,應用以麯代直簡化思想解決零點漂移問題。工程實測數據應用錶明,所提齣脩正方法應用方便,計算結果偏于安全,精度滿足要求。
기우측사의공작원리,분석료활동식측사의재사용과정중적오차성인;침대측사의영점수거표이문제,분별종영점표이량항정화영점표이량변화량충정황,도출료대응적수정공식,기우통일기준선수정법( UBM),전문침대심공측사정황,응용이곡대직간화사상해결영점표이문제。공정실측수거응용표명,소제출수정방법응용방편,계산결과편우안전,정도만족요구。
Based on the operating principles of an inclinometer, the factors causing errors of a slip inclinometer were analyzed. To overcome the errors caused by a zero shift of the inclinometer, the zero shifting constant and the zero shifting variable of the inclinometer were examined, respectively. The formulas for correcting the errors were derived correspondingly. A simplified method of replacing straight lines with curves was used to simplify the procedure of calculating measured data for the deep borehole, in which the variation of measurement conditions affected the zero shift of the inclinometer, based on the unified baseline correction method ( UBM ) . The observation data obtained from real construction verify that the proposed correction method can be easily used, the calculated results are slightly conservative, and the precision meets the requirements.