Landslides in the northern Colorado Front Range caused by rainfall, September 11-13, 2013
Landslides in the northern Colorado Front Range caused by rainfall, September 11-13, 2013
复制标题
2013 年 9 月 11 日至 13 日，科罗拉多州弗兰特山脉北部因降雨引发山体滑坡
DOI：
--
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
W. Barnhart
中科院分区：
文献类型：
--
作者：
J. Godt;J. Coe;J. Kean;R. Baum;Eric S. Jones;E. Harp;D. Staley;W. Barnhart
2013年9月的第二周，几乎连续的降雨在北方科罗拉多前线山脉（Front Range）造成了大范围的山体滑坡和洪水（图1）。山体滑坡和洪水造成8人死亡，并对建筑物、公路和基础设施造成广泛破坏（图2）。三人死亡归因于一种称为泥石流的快速移动型滑坡（图3）。一人死亡发生在詹姆斯敦，两人死亡发生在博尔德市以西的松溪山社区。2013年9月11日至13日期间，北方前线山脉的所有主要峡谷道路定期关闭。有些峡谷的封闭是由于山体滑坡和洪水对道路的底切造成的，有些是由于泥石流和岩石滑坡将物质沉积在路面上造成的（图4）。大部分的峡谷道路，除了美国6号公路（清溪峡谷），46号国道/杰斐逊公司路。70（金门峡谷），以及博尔德县的阳光峡谷，在2013年9月底仍然关闭。对科罗拉多历史记录的回顾表明，这种类型的事件，在如此短的时间内，在一个非常大的地区发生广泛的山体滑坡和洪水，是罕见的。
Printed on recycled paper During the second week of September 2013, nearly continuous rainfall caused widespread landslides and flooding in the northern Colorado Front Range (fig. 1). The combination of landslides and flooding was responsible for eight fatalities and caused extensive damage to buildings, highways, and infrastructure (fig. 2). Three fatalities were attributed to a fast moving type of landslide called debris flow (fig. 3). One fatality occurred in Jamestown, and two occurred in the community of Pinebrook Hills immediately west of the City of Boulder. All major canyon roads in the northern Front Range were periodically closed between September 11 and 13, 2013. Some canyon closures were caused by undercutting of roads by landslides and flooding, and some were caused by debris flows and rock slides that deposited material on road surfaces (fig. 4). Most of the canyon roads, with the exceptions of U.S. Highway 6 (Clear Creek Canyon), State Highway 46/Jefferson Co. Rd. 70 (Golden Gate Canyon), and Sunshine Canyon in Boulder County, remained closed at the end of September 2013. A review of historical records in Colorado indicates that this type of event, with widespread landslides and flooding occurring over a very large region, in such a short period of time, is rare.