摘要
滑坡的发生造成严重财产损失和人员伤亡,为了确保斜坡工程的安全施工和准确分析斜坡的稳定性,必须对滑坡的稳定性进行仔细的分析。分别运用极限平衡法和强度折减法计算斜坡的安全系数,对比分析滑坡体的稳定性。采用理正软件和FLAC3D作为计算工具,建立滑坡体的计算模型,运用简化Janbu法和强度折减法对其安全系数进行计算,依据《滑坡防治工程勘查规范(GBT32864-2016)》对其稳定性进行了评价。再用FLAC3D用强度折减法计算得出稳定性系数,验证所得安全系数的可靠性。研究了铜陵某滑坡体的稳定性,研究结果表明:极限平衡法和强度在折减法的斜坡稳定性计算分析上结果一致,该滑坡体整体稳定性较好。
The occurrence of landslide causes serious property loss and casualties. In order to ensure the safe construction of slope engineering and accurately analyze the stability of slope, the stability of landslide must be carefully analyzed. In this paper, the limit equilibrium method and the strength reduction method are used to calculate the safety factor of the slope, and the stability of the land-slide body is compared and analyzed. The calculation model of landslide mass is established by using Lizheng software and FLAC3D as calculation tools. The safety factor is calculated by simplified Janbu method and strength reduction method, and its stability is evaluated according to the code for investigation of landslide prevention engineering (gbt32864-2016). Then FLAC3D is used to calculate the stability coefficient by strength reduction method to verify the reliability of the safety coefficient. The stability of a landslide mass in Tongling is studied. The results show that the calculation and analysis results of limit equilibrium method and strength in reduction method are consistent, and the overall stability of the landslide mass is good.
出处
《矿山工程》
2020年第3期213-220,共8页
Mine Engineering
