CAJ | 학술논문

尾矿库坝体的稳定性分析需充分考虑地形的复杂程度与边界的不规则程度，从而建立尾矿库的真实三维渗流场。利用 SVOffice 软件在不概化地形及边界的条件下构建尾矿库的真实渗流域，模拟了最后一期填筑在正常高水位（427．77 m）及汛期最高洪水位（434．50 m）两种工况下的三维瞬态渗流场。结果显示：两种工况下，尾矿最大日排水量均为6100 m3，此时，堆积坝两侧浸润面均有溢出，远离排水井一侧的溢出范围更大，这主要是受渗流域的影响；库内初始水位对筑坝期渗流场的分布存在较大的影响，汛期洪水位筑坝初期浸润面位置最高。由模拟结果设计了5条排渗盲沟，保证了浸润面在堆积坝任何部位均未溢出。
미광고패체적은정성분석수충분고필지형적복잡정도여변계적불규칙정도，종이건립미광고적진실삼유삼류장。이용 SVOffice 연건재불개화지형급변계적조건하구건미광고적진실삼류역，모의료최후일기전축재정상고수위（427．77 m）급신기최고홍수위（434．50 m）량충공황하적삼유순태삼류장。결과현시：량충공황하，미광최대일배수량균위6100 m3，차시，퇴적패량측침윤면균유일출，원리배수정일측적일출범위경대，저주요시수삼류역적영향；고내초시수위대축패기삼류장적분포존재교대적영향，신기홍수위축패초기침윤면위치최고。유모의결과설계료5조배삼맹구，보증료침윤면재퇴적패임하부위균미일출。
The complexity degree of the terrain and irregular degree of the border need to be fully considered in stability analysis of tailings dam.Thereby we established the true 3D seepage field of the tailings.Real seepage basin of the tailings was built by using SVOffice software without generalizing terrain and boundary conditions,and the three-dimensional transient seepage fields of the last stage filling was simulated under the normal water level (427.77 m)and flood peak(434.50 m).The results show,under two different conditions,the maximum drainage amount are both 6 100 m3/d.At the same time,the infiltration surface escapes on both sides of stacking dam,and the escape range is larger on the side far away from the drainage well,which is mainly affected by the seepage basin.Initial level of the tailing has a great impact on the seepage field of damming and the infiltration surface is the highest at the beginning of damming under flood peak.According to the simulation results,five blind drainage ditches are designed,which ensures that the infiltration surface will not escape on any position of stacking dam.