辽宁海州露天矿国家矿山公园边坡稳定性分析

海州露天矿是我国大型露天煤矿之一,目前已闭坑,准备建成国家矿山公园,但矿坑北帮受断层及弱层影响,滑坡、地裂缝等地质灾害十分严重,为保证海州露天矿国家矿山公园建设的顺利进行,对矿坑北帮边坡稳定性进行评价非常必要。本文利用FLAC-2D软件对E12、E16、E18、E20等四个剖面的边坡稳定性进行了数值模拟,用强度折减法计算出了各剖面的安全系数。对安全系数较低的区域提出了相应的加固措施,并对加固措施的效果进行了数值模拟,模拟结果表明加固措施是安全的、可行的。

Analysis of slope stability of the Haizhou open-pit mine national mining park

Haizhou is one of the large-scale open-pit mines,but it is closed now,and it is ready to be built as a national mining park.In order to ensure the construction of Haizhou national mining park smoothly,it＇s necessary to evaluate the slope stability of its north wall which is influenced by faults and weak layers,and geological hazards like landslides and ground fissures are serious.The slope stability of four sections as E12,E16,E18 and E20 are numerical simulated in this paper,and also their safety coefficients are calculated by the measure of intension decreased.Then reinforcement measures are given in this area of lower safety coefficient,and its effects are also numerically simulated,in addition,the effects indicate that the reinforcement measures are safe and feasible.