赵庄二号井2309工作面构造区注浆加固技术研究

赵庄二号井2309工作面地质构造比较复杂,受地质构造运动影响比较强烈,断层、陷落柱、破碎带等特殊地质构造发育,煤体物理、力学性质条件较差,工作面回采过程中安全问题突出.因此需研究工作面构造区的注浆加固技术参数并评价围岩控制效果,确定巷道及工作面构造区的合理注浆钻孔参数、注浆加固工艺和技术,监测注浆加固效果,控制片帮冒顶...

Grouting Reinforcement in Tectonic Zone of 2309 Working Face of No.2 Well in Zhaozhuang Mine

The geological structure of the 2309 working face of No.2 Well in Zhaozhuang Mine is complicated and severely affected by geological tectonic movement.Due to various geological structure developments,including faults,collapse columns,and fracture zones,the physical and mechanical properties of the coal body are poor,which makes the safety issue prominent in the mining process.Therefore,it is necessary to study the parameters of grouting reinforcement in the tectonic zone and evaluate the control effect of surrounding rock.By determining the reasonable grouting parameters and reinforcement technology,it is possible to monitor the reinforcement effect and then prevent the spalling and roof falling,which could ensure the safe mining.