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Cost Investigation of the Coalmine Subsidence Control Technology of Isolated Overburden Grout Injection
Abstract The isolated overburden grout injection is a control technology developed for coalmine subsidence issues. To rationally measure the cost input of applying this technique, this paper analyzes its cost composition according to activity-based costing method. Through utilizing this method, the process of grouting is divided into four major operation steps, in which each component’s cost sources is described. On this basis, a case study of grouting cost in Huaibei mining area is carried out. The key factor governing the total cost is determined to be the cost of grouting materials, which mainly depends on the distance between material producing site and the grouting station. Furthermore, the total cost of grouting decreases with the increase of coal reserves in an underground longwall working face. Specifically, a significant correlation exists when coal reserves of a longwall exceed 300 thousand tons, while this decreasing trend slows down. The research can facilitate both the evaluation of the applicability of grout injection technology and the optimization of its cost.
Cost Investigation of the Coalmine Subsidence Control Technology of Isolated Overburden Grout Injection
Abstract The isolated overburden grout injection is a control technology developed for coalmine subsidence issues. To rationally measure the cost input of applying this technique, this paper analyzes its cost composition according to activity-based costing method. Through utilizing this method, the process of grouting is divided into four major operation steps, in which each component’s cost sources is described. On this basis, a case study of grouting cost in Huaibei mining area is carried out. The key factor governing the total cost is determined to be the cost of grouting materials, which mainly depends on the distance between material producing site and the grouting station. Furthermore, the total cost of grouting decreases with the increase of coal reserves in an underground longwall working face. Specifically, a significant correlation exists when coal reserves of a longwall exceed 300 thousand tons, while this decreasing trend slows down. The research can facilitate both the evaluation of the applicability of grout injection technology and the optimization of its cost.
Cost Investigation of the Coalmine Subsidence Control Technology of Isolated Overburden Grout Injection
Xu, Jingyi (author) / Xuan, Dayang (author)
2019
Article (Journal)
English
| Elsevier | 2023
Control effect of overburden grout injection on surface subsidence and groundwater quality pollution
| Springer Verlag | 2024
| British Library Online Contents | 2015