Stability Monitoring of a Coal Mining Excess Spoil Fill

对采矿作业产生的多余废料的处理通常是把这些材料放在山谷填充物中，目前已有数百个这样的填充物。联邦露天采矿办公室以及州监管机构对这些结构的稳定性进行监管。这一行动关系到其中一个多余垃圾填埋场的稳定性：由于担心春雨可能会导致破坏，因此正在密切监测。本项目包括在该填料上安装综合变形监测系统，调查水通过填料的运动，测试现场的土壤样本，监测渗水和填料表面潮湿区域附近的地下水位。该案例研究的数据将促进对边坡破坏机制的理解，并有助于制定新的设计标准。它得到了政府机构和当地社区的大力支持。

The disposal of excess spoil created by mining operations is usually accomplished by placing this material in valley fills, hundreds of which are now in existence. The Federal Office of Surface Mining, as well as state regulatory authorities, regulate the stability of these structures.This action concerns the stability of one of these excess spoil fills: It is being closely monitored due to concern that failure may occur as a result of spring rains. This project includes the installation of a comprehensive deformation monitoring system on this fill, investigating water movement through the fill, testing soil samples from the site, and monitoring the ground water table in the vicinity of seeps and wet areas of the surface of the fill.Data from this case study will advance understanding of the mechanism of slope failure, and the development of new design standards. It has received strong support from government agencies and the local community.