厚煤层综放开采底板采动破坏及渗流特征
王升阳¹，张志巍^2，3
（1. 中煤平朔集团有限公司，山西 朔州 036000；2. 天地科技股份有限公司，北京 100013；3. 中煤科工开采研究院有限公司，
北京 100013）
摘要： 为研究承压水体上厚煤层综放开采底板采动破坏特征及渗流特征，采用数值模拟的方法进行了分析。通过数值
模拟研究发现，随着工作面不断推进，煤层底板破坏特征依次呈现出半圆形、倒三角形和“勺”形。受采动扰动影响，煤
层底板承压水强渗区呈现出滞后工作面的特点，随着工作面的推进强渗区呈现出“波浪”式变化。通过现场实测得到煤层
底板破坏深度最大值为30.92 m且未出现明显的底板突水现象，验证了数值模拟的可靠性，为矿井安全生产提供了参考。
关键词： 厚煤层；底板；采动破坏；渗流；承压水导升
中图分类号： TD326；TD12     文献标识码： A     文章编号： 2095-0802-(2022)04-0010-05
Mining Failure and Seepage Characteristics of Fully Mechanized Caving Floor in Thick
Coal Seams
WANG Shengyang¹, ZHANG Zhiwei^2,3
(1. China Coal Pingshuo Group Co., Ltd., Shuozhou 036000, Shanxi, China; 2. Tiandi Science & Technology Co., Ltd., Beijing
100013, China; 3. CCTEG Coal Mining Research Institute, Beijing 100013, China)
Abstract: In order to study the mining failure characteristics and seepage characteristics of thick coal seam fully mechanized
caving mining floor on confined water body, this paper used the numerical simulation method to analyze. Through numerical
simulation, it was found that with the continuous advancement of the working face, the failure characteristics of coal seam floor
appeared semicircular, inverted triangle and "spoon" shape in turn. Affected by mining disturbance, the strong seepage area of
confined water in coal seam floor showed the characteristics of lagging behind the working face, and the strong seepage area
showed a "wave" change with the advancement of the working face. The field measurement showed that the maximum damage
depth of the coal seam floor was 30.92 m and there was no obvious floor water inrush, which verified the reliability of numerical
simulation and provides a reference for mine safety production.

Key words: thick coal seam; floor; mining failure; seepage; confined water lifting