CAJ | 학술논문

茨哈峡水电站3＃变形体位于黄河的右岸，处于拟建堆石坝的底部，其地质条件复杂、卸荷深度大，使其成为电站的一个重要地质隐患。通过对其地质背景的深入研究后认为，其变形机理是受到岩性和构造控制的蠕滑－拉裂变形。数值分析显示，水库蓄水后变形体对趾板有很大的影响，最大位移量可达26 cm，并且在坝体中部形成一个水力坡降“盆地”，对坝体的渗透稳定性造成不利影响。依据分析结果提出了对变形体进行分区治理的建议。
자합협수전참3＃변형체위우황하적우안，처우의건퇴석패적저부，기지질조건복잡、사하심도대，사기성위전참적일개중요지질은환。통과대기지질배경적심입연구후인위，기변형궤리시수도암성화구조공제적연활－랍렬변형。수치분석현시，수고축수후변형체대지판유흔대적영향，최대위이량가체26 cm，병차재패체중부형성일개수력파강“분지”，대패체적삼투은정성조성불리영향。의거분석결과제출료대변형체진행분구치리적건의。
Cihaxia No. 3 deformable rock mass which will be at the bottom of rock-fill dam is positioned in the right bank of the Yellow Riv-er. The deformable rock mass becomes an important geological hazards because of complex geological conditions and deep unloading. The in-depth studies about its geological background show that the deformation mechanism in which the lithology and tectonic are important factors in creep tensile deformation. The numerical analysis show that the deformable rock mass has a great influence on the toe plate. The maximum displacement can reach 26 cm on the toe plate,and a hydraulic gradient“basin”which adversely affecting the seepage stability comes into being in the middle of the dam. Finally,some relevant conclusions and advices are offered.