深部厚煤层长壁高水充填工作面矿压显现规律

Strata Behavior Law of Long-wall Face Filling with High Water Material in Deep Mining

摘要: 通过研究深部厚煤层长壁高水充填1126工作面双节式液压支架顶梁对顶板的重复支撑作用，发现高水材料充填开采工作面矿压显现规律有以下特点：改变了采空区围岩的受力环境，引起直接顶岩层和基本顶岩层厚度的改变；工作面直接顶岩层的稳定性等级下降，从4类非常稳定顶板，变成介于1类不稳定顶板和2类中等稳定顶板之间的顶板；基本顶岩层从3级来压强烈顶板转变为1级来压不明显的顶板。
- 深部开采 /
- 高水材料 /
- 充填开采 /
- 矿压显现 /
- 顶板岩层
Abstract: Through the analysis of the effect of repeated support from hydraulic support (double sections) upper beam at longwall high filling water of 1126 working face on the roof strata. Research of the strata behavior law of the high water material filling method shows that the thickness of the immediate and main roof strata will change due to the alteration of the rock stress in the mined-out area; the stability classification of the immediate roof strata drops from the level four down to the middle place between level one and level two; the rock pressure of the basic roof strata transformed from level there to level one.
- deep mining /
- high water material /
- backfilling mining /
- strata behavior /
- roof strata

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