Causes and Prevention for Sinkhole in Limestone Mine
نویسندگان
چکیده
In recent, the placement of backfill in underground mines has emerged as a new paradigm in research as it not only improves safety but also allows disposal of byproducts including coal ash. In this regards, this paper addresses the backfilling challenges in limestone mine to prevent sinkhole and subsidence. Limestone mines, generally regarded as being safer than coal and metal mines, have been subject to unsupported mining methods. However, the increasing number of sinkholes worldwide has highlighted the need for research on preventive measures. The purpose of this study was to improve the safety of limestone mines, which account for more than 70% of Korea’s resources. This paper investigated sinkholes and subsidence in limestone mines from geological and mine development perspectives, and examined the case studies of backfill in limestone mine as a solution. Keywords—Sinkhole, Subsidence, Limestone mine, Backfill
منابع مشابه
بررسی ویژگیهای ژئومورفولوژی و علل شکلگیری فروچالههای دشت ابرکوه.
Introduction: One of the most important evidence of karst development is the existence of Devlin or sinkholes. Devlin is a natural depression in the karstic areas with internal or subcutaneous drainage. In recent years several genetic classifications have been published for sinkholes sink holes in these categories into two main groups sinkholes of "liquidation" and "depression" are segregated. ...
متن کاملDownflow Limestone Beds for Treatment of Net-Acidic, Oxic, Iron-Laden Drainage from a Flooded Anthracite Mine, Pennsylvania, USA: 2. Laboratory Evaluation
Acidic mine drainage (AMD) containing elevated concentrations of dissolved iron and other metals can be neutralized to varying degrees by reactions with limestone in passive treatment systems. We evaluated the chemical and mineralogical characteristics and the effectiveness of calcitic and dolomitic limestone for the neutralization of net-acidic, oxic, iron-laden AMD from a flooded anthracite m...
متن کاملImproved prediction of blast-induced vibrations in limestone mines using Genetic Algorithm
Like most limestone mines, which produce the raw materials required for cement companies, the transportation cost of the raw materials used in the Shahrood Cement Company is high. It has been tried to build the crushing and grinding plant close to the mine as much as possible. On the other hand, blasting has harmful effects, and the impacts of blast-induced damages on the sensitive machinery, e...
متن کاملLimestone chemical components estimation using image processing and pattern recognition techniques
In this study based on image analysis, an ore grade estimation model was developed. The study was performed at a limestone mine in central Iran. The samples were collected from different parts of the mine and crushed in size from 2.58 cm down to 15 cm. The images of the samples were taken in appropriate environment and processed. A total of 76 features were extracted from the identified rock sa...
متن کاملCase Studies of a Borehole Deployable Robot for Limestone Mine Profiling and Mapping
Inherent dangers in mining operations motivate the use of robotic technology for addressing hazardous situations that prevent human access. In the context of this case study, we examine the application of a robotic tool for map verification and void profiling in abandoned limestone mines for analysis of cavity extent. To achieve this end, our device enables remote, highly accurate measurements ...
متن کامل