摘要
准确预计导水裂隙带高度,是保证矿井安全生产和保护矿区生态环境的关键环节。通过对经验公式应用条件的分析、预计结果与实际状况的对比、导水裂隙带高度与开采强度关系的数值试验,探讨了目前常用的导水裂隙带最大高度预计公式的适应性和可信性,并提出提高导水裂隙带预计结果准确性的技术方法。研究认为,导水裂隙带最大高度预计经验公式是对规范或规程颁布以前矿井覆岩破坏规律的经验总结,已经不能适应当今高产高效矿井高强度开采的条件,因而,其预计结果不符合实际状况,可信性较差,不能有效指导煤矿的矿井水害防范及矿区生态潜水保护。陕北榆神矿区榆树湾井田20102工作面导水裂隙带发育规律的研究表明,采用数值模拟方法,或建立全面反映导水裂隙带高度与开采强度关系的经验公式,是提高导水裂隙带预计结果准确性的有效途径。
Estimating the height of water-flowing fractured zone accurately is significant for ensuring the safety in pro- duction and protecting the eco-environment protection of mine.The adaptability and credibility of the popular empirical formulas for estimating the maximum height of water-flow- ing fractured zone are discussed by means of analyzing the application conditions of the empirical formulas, contrasting the estimated result with practical situation, and making nu-merical experiment to reveal the interrelation between the height of water-flowing fractured zone with mining intensity. On that basis, the methods to improve the estimating accu- racy of the height of water-flowing fractured zone are put forward.Results showed that the empirical formulas for esti- mating the maximum height of water-flowing fractured zone were summarized from the overburden＇s destructive rules be- fore the standards were issued, which failed to adapt the high output, high efficiency and high intensity of modern mines. Therefore, the impractical estimated result was not reliable, and of poor reference to prevent water disasters and protect ecological phreatic water in mine.The research on the law of the development of water-flowing fractured zone at 20102 working face of YuShuwan well field of Yushen coal mine showed that the effective way to improve the estimate accuracy of the height of water-flowing fractured zone was to use numerical simulation method, or establish the empirical formula reflecting comprehensively the relationship of water- flowing fractured zone height with mining intensity.
出处
《矿业研究与开发》
CAS
北大核心
2013年第6期63-67,共5页
Mining Research and Development
基金
国家国际科技合作专项项目(2012DFG71060)
陕西省科技计划项目(2011K17-02-05)
关键词
矿井水
生态环境
导水裂隙带
预计
Mine water, Eeo-environment, Water-flowing fractured zone, Estimate
作者简介
许武（1985-），男，湖南衡阳人，硕士研究生，研究方向主要为煤田地质、采煤沉陷对地下水的影响等，Email：xuwu1124@163．com。
