CAJ | 학술논문

江边拦河闸坝建在深覆盖层上，覆盖层最大深度约达110m．坝基沉降采用两种方法观测，一种是杆式沉降仪，用于监测施工期和运行期沉降；一种是几何水准法，用于监测蓄水前施工期沉降，两种方法互为补充并相互验证．监测成果表明，两种观测方法测值差异较大，其中杆式沉降仪测值较小，在5mm范围内，几何水准法测值较大，最大约0．04m，两种方法有一种可靠性较差．通过监测资料分析及比较设计成果，判断坝基沉降真实情况，并简要叙述测值失真的原因，为类似工程监测设计提供一定的借鉴作用．
강변란하갑패건재심복개층상，복개층최대심도약체110m．패기침강채용량충방법관측，일충시간식침강의，용우감측시공기화운행기침강；일충시궤하수준법，용우감측축수전시공기침강，량충방법호위보충병상호험증．감측성과표명，량충관측방법측치차이교대，기중간식침강의측치교소，재5mm범위내，궤하수준법측치교대，최대약0．04m，량충방법유일충가고성교차．통과감측자료분석급비교설계성과，판단패기침강진실정황，병간요서술측치실진적원인，위유사공정감측설계제공일정적차감작용．
The river barrage of Jiangbian Hydropower Station was built on deep overburden layer with max thickness 110 m. Foundation settlement of barrage is monitored by two methods. The settlement gauge rod is used during construction and operation, and the geometric leveling method is used before water storing. Monitoring results show that the measured values obtained from two methods are quite different. Max settlement monitored by geometric leveling method is about 0.04 m. Values obtained by bar type settlement gauge are between 0 - 5mm, far smaller than that obtained by geometric leveling method. Then there is a poor reliability method between those two ways. By monitoring data analysis and comparison of design results, the real situation of foundation settlement is determined, and the reason for distortion of measuring is analyzed. The conclusion of analysis provides some reference for the similar projects.