CAJ | 학술논문

针对重庆市金佛山混凝土面板堆石坝初步设计方案，通过静力平面应力变形分析计算，分析了坝体在竣工期、蓄水期的应力变形分布规律，重点研究了主堆石孔隙率、次堆石材料对面板和趾板的应力变形、周边缝变位等的影响，为选取主堆石孔隙率、次堆石区筑坝材料提供依据。计算结果表明，主堆石孔隙率采用20.1%和19.1%均可行，次堆石筑坝材料采用弱风化带粉砂岩：页岩=7：3和弱风化带粉砂岩：页岩=5：5均是可行的。但是相对于其他方案，采用主堆石孔隙率为20.1%，次堆石筑坝材料为弱风化带粉砂岩：页岩=7：3的方案，坝体、面板、趾板的应力变形较小。
침대중경시금불산혼응토면판퇴석패초보설계방안，통과정력평면응력변형분석계산，분석료패체재준공기、축수기적응력변형분포규률，중점연구료주퇴석공극솔、차퇴석재료대면판화지판적응력변형、주변봉변위등적영향，위선취주퇴석공극솔、차퇴석구축패재료제공의거。계산결과표명，주퇴석공극솔채용20.1%화19.1%균가행，차퇴석축패재료채용약풍화대분사암：혈암=7：3화약풍화대분사암：혈암=5：5균시가행적。단시상대우기타방안，채용주퇴석공극솔위20.1%，차퇴석축패재료위약풍화대분사암：혈암=7：3적방안，패체、면판、지판적응력변형교소。
Based on the preliminary design scheme of Jinfo Mountain concret e face rockfill dam located in Chongqing, the st ress deformation distribut ions of the dam during the completion period and storage period were analyzed through the stress deforma-tion calculation on the static plane. The study was focused on the effects of main rockfill porosity ratio and secondary rockfill dam materials on the stress deformation distribution of the face slab and toe slab of the dam and the deformation of the periph-eral joint, which can form the basis for the selection of dam materials. The calculat ion results showed that the main rockfil po-rosity ratios of 20. 1% and 19. 1% are feasible, and the secondary rockf il dam materials with the rat ios bet ween the weak weathered zone silty sandstone and shale of 7: 3 and 5: 5 are feasible. The stress deformation of dam body, face slab, and toe slab is small with the main rockfil porosity rat io of 20. 1% and the secondary rockfill dam materials with the ratio between the weak weathered zone silty sandst one and shale of 7: 3.