Chrome Extension
WeChat Mini Program
Use on ChatGLM
VIPCreated with Sketch.

超化煤矿"三软"煤层采动底板变形破坏的实测研究

ZHU Shu-yun,JU Yuan-jiang,ZHAO Zhen-zhong,LIU De-qian

Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering（2009）

Cited 15|Views14
No score
Abstract
通过现场应变实测系统研究了郑州矿区超化煤矿"三软"煤层底板采动变形破坏的深度及其受采动煤壁前方影响的范围.得出了在正常采动情况下厚的软煤和软底对应力和变形的传播具有一定的缓冲作用,受超前应力集中的影响,竖直应力的变化比水平应力大.揭示了中段灰岩组对应力分布和变形破坏的重要控制作用,为豫西煤炭资源向深部开采所引起的底板水防治提供了部分参考的依据.
More
Translated text
Key words
'three-soft' coal seam,Deformation and destruction,Field measurement,Mining floor,Strain distribution
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined