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有色金属(矿山部分):2019,71(5):78-80
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排土场软弱夹层厚度与降雨量耦合的稳定性研究
((长沙矿山研究院有限责任公司,长沙 410012))
Stability of the soil dump based on the coupling of soft intercalated layer thickness and rainfall
((Changsha Institute of Mining Research Co., Ltd., Changsha 410012, China))
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中文摘要: 根据刚果(金)排土场边坡实际情况,以软弱夹层厚度与降雨量为变量,进行了两者耦合与边坡安全系数的影响研究,基于Geostudio-SEEP/W、SLOPE/W模块的计算能力,应用Bishop方法计算了在不同夹层厚度、不同降雨量下的边坡最小安全系数, 同时进行了排土场边坡的滑动面分析及渗流分析。研究表明:降雨量增加,水位逐渐上升,抗剪强度减弱,安全系数逐渐降低;软弱层厚度增加,滑面半径增大,抗滑力减小,安全系数减小,降低速率大于降雨。
Abstract:Based on the actual situation of Congo (gold) mine slope, with weak intercalated layer thickness and rainfall as variable factors , research on the coupling and the slope safety factor was conducted; and based on Geostudio-SEEP/W and SLOPE/W module of computing power, Bishop method was applied to calculate the minimum safety factor under different rainfall and different interlayer thickness, mean the sliding surface and the seepage of dump slope were analyzed. Results indicated that with the increase of rainfall, water level rose gradually, shearing strength reduced and safety factors decreased gradually; additionally, the thickness of the intercalated layer increased, the radius of the sliding surface increased, the anti-sliding force decreased, and the safety factors decreased, which the reduction rate was greater than the rainfall rate.
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马 增,刘正宇,虎万杰,王飞飞,邹 平,李爱兵,孟中华.排土场软弱夹层厚度与降雨量耦合的稳定性研究[J].有色金属(矿山部分),2019,71(5):78-80.
MA Zeng,LIU Zhengyu,HU Wanjie,WANG Feifei,ZOU Ping,LI Aibing,MENG Zhonghua.Stability of the soil dump based on the coupling of soft intercalated layer thickness and rainfall[J].NONFERROUS METALS(Mining Section),2019,71(5):78-80.

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