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首页> 外文会议>Eighth International Conference on Tailings and Mine Waste '01, Jan 16-19, 2001, Fort Collins, Colorado, USA >Rockfall analysis and prediction at the Summitville Mine Superfund Site
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Rockfall analysis and prediction at the Summitville Mine Superfund Site

机译：萨米特维尔矿山超级基金站点的落石分析和预测

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摘要

Past open pit mining at the Summitville Mine Superfund Site has left an 800 foot high pit highwall that has been and continues to be a source of rockfall. Much of the source area for rockfall includes rock with a high sulfur content, which, when exposed to water, produces acid rock drainage. Future reclamation of the area located immediately adjacent to the toe of the highwall will include a rock catchment area, and regrading and revegetation of the area beyond the catchment. A means was required to determine if revegetation in the area beyond the catchment would be adversely impacted by acid generation from rockfall debris. The Colorado Rockfall Simulation Program (CRSP) was used to estimate current rockfall parameters at the highwall and predict future rockfall behavior. Rockfall parameters were initially estimated from literature guidance and field observations. These parameters were further refined by calibrating the model to observed locations and sizes of rockfall debris currently in place at the site. The results of the calibration were used to predict future rockfall stopping locations for different diameter rocks. The predicted stopping locations suggest that the size of the design catchment area is adequate and that reclamation of the area beyond the catchment should not be adversely impacted by future rockfall.
机译：过去在萨米特维尔矿山超级基金工地进行的露天采矿已经留下了800英尺高的高墙，该高墙一直是并将继续成为崩塌的来源。落石的大部分来源地区都含有高硫含量的岩石，将其暴露在水中会产生酸性岩石排泄物。紧邻高墙脚趾的区域的未来开垦将包括集水区，以及集水区以外的区域的植被恢复。需要一种方法来确定集水区以外地区的植被是否受到落石碎屑产生酸的不利影响。科罗拉多州落石模拟程序（CRSP）用于估算高墙处的当前落石参数并预测未来的落石行为。落石参数最初是根据文献指导和现场观察估算的。通过将模型校准为现场当前观测到的落石碎屑的位置和大小，可以进一步完善这些参数。校准结果用于预测不同直径岩石的未来落石停止位置。预计的停车位置表明设计集水区的大小是足够的，集水区以外的区域的开垦不应受到未来落石的不利影响。

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