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平顶山煤田地面沉降机理分析及研究
供稿: 苏凯峰 时间: 2018-11-26 次数:

作者:苏凯峰

作者单位:河南省国土资源科学研究院

摘要:地面沉降是煤矿区最主要的地质灾害之一,它严重威胁着矿山生产安全,破坏了生态地质环境.为了深入地研究地表沉降形成的机理,从岩体应力场变化、地下水疏排、断层构造影响3个方面对造成煤矿区沉降的原因进行了比较全面地分析.同时,论述了平顶山煤田开采矿区地面沉降的发育现状,并根据丰富的岩移观测资料,确定了普遍适合本煤田各矿区的岩移参数,采用概率积分法对各矿区因采煤引发的地面最终沉降量进行了预测,预测煤田的最终沉降面积约198.07 km2.

关键词:地面沉降;沉陷机理;地质灾害;平顶山煤田;

DOI:10.16186/j.cnki.1673-9787.2014.01.011

分类号:TD327

Abstract:Land subsidence is one of the main geological disasters in a coal mining area,it seriously threatens mine production safety,and damage ecological and geological environments. In order to further study the formation mechanism of the surface subsidence,based on three aspects including the rock stress field variation, the groundwater drainage and the fault structure,the causes of coal mining subsidence are analyzed. At the same time,the development status of Pingdingshan coal mining subsidence in the mining area is discussed. According to the abundant rock movement observation data,the rock movement parameters suitable for the coal mining area were determined,and the ground subsidence caused by coal mining was predicted. The coalfield final subsidence area is about 198. 07 km2.

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