摘要
在本钢南芬露天铁矿选取典型的顺层岩质边坡进行现场开挖试验,并采用滑动力远程监测预警系统进行原位实时监测。试验结果表明:顺层岩质边坡在地面开挖扰动影响下多发生局部浅层牵引式破坏,滑动变形区贯穿整个坡面(垂直高度约12 m)。破坏过程中,伴随着裂缝的产生、扩展、贯通和失稳,滑动力监测曲线均发出超前预警信息,可以有效地避免滑坡灾害引发的重大安全事故。
Two typical bedding rock slopes to take the excavation test also proceed in situ real-time monitoring by the remote monitoring and warning system of sliding force was choosed in Nanfen open pit iron mine in Liaoning province. The result shows that the bedding rock slopes usually occur local shallow pull-type damage under the influence of ground excava- tion disturbance, and sliding deformation through all the slope surface （vertical height about 12m）. During the failure process with the emerging, expansion, breakthrough, instability of the cracks, the monitoring curve of sliding force issue the advance warning message completely. It can avoid serious security accident effectively which cause by landslide disaster.
出处
《金属矿山》
CAS
北大核心
2012年第9期154-157,共4页
Metal Mine
基金
国家自然科学基金项目(编号:41040027)
关键词
露天矿滑坡
滑动力监测
开挖试验
顺层滑坡
Landslide in open-pit mine, Sliding force monitoring, Cut tests, Bedding landslide
