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某灰岩露天矿道路边坡稳定性分析与治理

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为了对某建筑石料用灰岩矿上山道路发生的局部滑坡进行有效治理,结合上山道路沿线边坡工程地质特征,采用赤平投影法对边坡稳定性进行定性分析,并运用极限平衡法对治理后的边坡稳定性进行定量评价.经计算分析,道路边坡整体属于较稳定结构,局部边坡属于不稳定结构.针对局部不稳定结构边坡,提出了包括清理危岩土体、喷锚支护及截排水等在内的治理措施,优化了道路边坡参数,并基于Geo-studio计算了边坡在不同荷载状态下的稳定性.结果表明,在暴雨和地震条件下,边坡稳定性显著下降,是影响道路边坡稳定性的主要因素.研究成果对类似道路边坡滑坡研究和防治具有借鉴作用.
Stability Analysis and Treatment of Road Slope in a Limestone Open-pit Mine
In order to effectively control the local landslide in the uphill road of a limestone mine for building stone,combined with the engineering geological characteristics of the slope along the uphill road,the stereographic projection method is used to qualitatively analyze the slope stability,and the limit equilib-rium method is used to quantitatively evaluate the slope stability after treatment.After calculation and analy-sis,the overall slope of the road belongs to a relatively stable structure,and there are local slopes that be-long to an unstable structure.Aiming at the local unstable structure slope,the control measures including cleaning the dangerous rock soil,spray anchor support and interception and drainage are put forward,and the parameters of the road slope are optimized.Based on Geo-studio,the stability of the slope under differ-ent load conditions is calculated.The results show that the slope stability decreases significantly under the conditions of rainstorm and earthquake,which is the main factor affecting the stability of road slope.The re-search results can be used for reference in the research and prevention of similar road slope landslides.

limestone open-pit mineslope stabilitystereographic methodGeo-studiolandslide control

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陕西浙交秦新矿业有限公司

灰岩露天矿 边坡稳定性 赤平投影法 Geo-studio 滑坡治理

2024

现代矿业
中钢集团马鞍山矿山研究院有限公司

现代矿业

影响因子:0.33
ISSN:1674-6082
年,卷(期):2024.40(8)