Enhancing efficiency in the control of artificial ground freezing for shaft construction: A case study of the Darasinsky potash mine

IF 5.3 Q2 ENGINEERING, ENVIRONMENTAL

Cleaner Engineering and Technology Pub Date : 2023-12-11 DOI:10.1016/j.clet.2023.100710

Mikhail Semin , Ivan Golovatyi , Lev Levin , Aleksei Pugin

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Abstract

Artificial ground freezing during mine shaft construction is a costly endeavor. For effective decision-making in mining operations, it's essential to establish robust control over frozen soil conditions. This control holds paramount importance for ensuring mining safety. After considering the existing approaches to the control of artificial ground freezing, we conducted an analysis of their respective advantages and disadvantages. We introduced two novel principles for controlling the freezing process. These principles mark a substantial advancement from the previously proposed freeze-on-demand concept. Subsequently, we illustrated the practical implementation of these principles by sharing our experience in controlling artificial ground freezing during the construction of two potash mine shafts in the Republic of Belarus. One of the most noteworthy outcomes of this control is the development of innovative technical solutions aimed at enhancing energy efficiency and operational safety in shaft sinking. These solutions encompass interval-based permission for mining activities, facilitating earlier shaft sinking initiation. Another significant solution pertains to swiftly responding, devising, and implementing strategies to counteract groundwater infiltration within one of the frozen soil layers.

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提高竖井建设人工地面冻结控制的效率：达拉辛斯基钾盐矿案例研究

在矿井施工过程中，人工冻结是一项耗资巨大的工程。为了在采矿作业中做出有效的决策，建立对冻土条件的强有力控制是至关重要的。这种控制对确保采矿安全至关重要。在综合考虑现有的人工冻土控制方法的基础上，对其优缺点进行了分析。我们介绍了两种控制冷冻过程的新原理。这些原则标志着以前提出的按需冷冻概念的重大进步。随后，我们通过分享我们在白俄罗斯共和国建设两个钾肥矿井期间控制人工地面冻结的经验，说明了这些原则的实际实施。这种控制最值得注意的成果之一是开发了创新的技术解决方案，旨在提高掘进井的能源效率和操作安全性。这些解决方案包括基于间隔的采矿活动许可，促进早期井筒下沉启动。另一个重要的解决方案是迅速响应、设计和实施策略，以抵消某一冻土层内地下水的渗入。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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