Research on Reasonable Permeable Grouting Pressure Based on Slurry-coal Body Coupling Effect
When measuring gas pressure in high-pressure gas-containing coal bodies,the quality of sealing pores plays a decisive role in the determination results,and the selection of reasonable grouting pressure during sealing is particularly important.Aiming at the deficiencies in the current grouting pressure research,based on the range of plastic zone,a slurry permeability diffusion model under multi-field coupling was established.According to the theoretical model created,the law of slurry diffusion under different grouting pressures was analyzed,and the reasonable grouting pressure was verified by gas pressure measurement results.The field test results show that the 5MPa grouting pressure simulated by this model is reasonable and can be consistent with the in-situ grouting effect.
percolation grouting gas-bearing coal grouting pressure numerical simulation coupling effect
Fengfeng Yang Jufeng Zhang Chao Zheng Shuang Li Dongfang Gao
College of Energy Engineering,Long Dong University,Qingyang 745000,China College of Energy Engineering,Long Dong University,Qingyang 745000,China;School of Resource,Environm
国际会议
太原
英文
25-30
2018-06-29（万方平台首次上网日期，不代表论文的发表时间）