In mountain terrains of Himalaya, road and highway networks play a vital role in remote areas for transportation, public network and all kind of socio-economic activities. The stability of rock slopes along the roads ...In mountain terrains of Himalaya, road and highway networks play a vital role in remote areas for transportation, public network and all kind of socio-economic activities. The stability of rock slopes along the roads and highways is a major concern in these hilly regions. Any kind of slope failure may lead to disruption in traffic, loss of properties and lives/injuries as well as environmental degradation. The unplanned excavations of rock slopes for construction or widening purposes may undermine the stability of the slopes. The present study incorporates the stability analysis of road cut slopes along NH-109 which goes to holy shrine of Kedarnath. Slope failure is not only a phenomenon of rainy season but it has also been encountered even in dry season. The study area experiences high vehicular traffic especially from March to August due to pilgrims since it is the only road to Kedarnath. The distance of about 20 km between Rudraprayag and Agastmuni has been investigated. The continuous slope mass rating (CSMR) technique has been used for slope stability analysis at five different locations. CSMR is modification of original slope mass rating (SMR) proposed by Romana which is based on well established rock mass rating (RMR) technique. Kinematic analysis was also carried out to evaluate these sites for types of failure and its potential failure directions. The potentially vulnerable sites were identified. The results indicate that the CSMR technique may be exploited to assess the stability of rock slopes in the Himalayan territory.展开更多
基于青海牛苦头露天金属矿边坡工程,首先根据地质因素和工程因素,把边坡分成5个地质区域。然后对地勘资料和室内试验数据进行统计分类,利用CSMR(Chinese Slope Mass Rating)法对边坡进行分级评价。选取代表性剖面进行二维数值计算分析,...基于青海牛苦头露天金属矿边坡工程,首先根据地质因素和工程因素,把边坡分成5个地质区域。然后对地勘资料和室内试验数据进行统计分类,利用CSMR(Chinese Slope Mass Rating)法对边坡进行分级评价。选取代表性剖面进行二维数值计算分析,运用GEO-SLOPE软件对边坡稳定性进行初算,再采用MSARMA法综合考虑边坡的排水能力与地震荷载情况对边坡进行极限平衡分析。最后依据分析计算结果和实际工况优选合适的边坡角。展开更多
文摘In mountain terrains of Himalaya, road and highway networks play a vital role in remote areas for transportation, public network and all kind of socio-economic activities. The stability of rock slopes along the roads and highways is a major concern in these hilly regions. Any kind of slope failure may lead to disruption in traffic, loss of properties and lives/injuries as well as environmental degradation. The unplanned excavations of rock slopes for construction or widening purposes may undermine the stability of the slopes. The present study incorporates the stability analysis of road cut slopes along NH-109 which goes to holy shrine of Kedarnath. Slope failure is not only a phenomenon of rainy season but it has also been encountered even in dry season. The study area experiences high vehicular traffic especially from March to August due to pilgrims since it is the only road to Kedarnath. The distance of about 20 km between Rudraprayag and Agastmuni has been investigated. The continuous slope mass rating (CSMR) technique has been used for slope stability analysis at five different locations. CSMR is modification of original slope mass rating (SMR) proposed by Romana which is based on well established rock mass rating (RMR) technique. Kinematic analysis was also carried out to evaluate these sites for types of failure and its potential failure directions. The potentially vulnerable sites were identified. The results indicate that the CSMR technique may be exploited to assess the stability of rock slopes in the Himalayan territory.
文摘基于青海牛苦头露天金属矿边坡工程,首先根据地质因素和工程因素,把边坡分成5个地质区域。然后对地勘资料和室内试验数据进行统计分类,利用CSMR(Chinese Slope Mass Rating)法对边坡进行分级评价。选取代表性剖面进行二维数值计算分析,运用GEO-SLOPE软件对边坡稳定性进行初算,再采用MSARMA法综合考虑边坡的排水能力与地震荷载情况对边坡进行极限平衡分析。最后依据分析计算结果和实际工况优选合适的边坡角。
