综放工作面沿空多巷道掘进影响分析及围岩控制技术  

Driving Roadways along Gob Effect Analysis and Strata Control Technology at Fully-mechanized Caving Mining Face

作　　者：王磊 

机构地区：[1]山西天地王坡煤业有限公司,山西晋城048002

出　　处：《煤炭技术》2016年第11期70-72,共3页Coal Technology

摘　　要：以王坡煤矿3204工作面沿空侧巷道为研究对象,采用FLAC2D研究3204工作面沿空侧多条巷道在掘进期间分别采用锚网支护和锚网支护+注浆锚索补强支护的情况下,巷道表面的位移、应力和塑性区变化规律。研究结果表明:相邻巷道掘进时产生的动压会对已掘巷道的稳定性造成影响,采用锚网支护+注浆锚索补强支护后增加了巷道的抗变形能力,为回采过程中巷道稳定提供了保证。Studys the changes law of displacement, stress and plastic zone of roadway surface through the FLAC2D which simulate the gob-side roadway of 3204 mining face in Wangpo coal mine with bolting-wire mesh support or bolting-wire mesh support＋grouting anchor cable reinforcing support. The results show that the dynamic pressure which produced by the adjacent roadway＇s driving affect the stability of driving roadways and the using of reinforcing support through the bolting-wire mesh support and grouting anchor cable could increase the deformation resistance of roadways. This provides a guarantee for the stability of recovery roadways.

关 键 词：锚网支护 补强支护 巷道稳定 

分 类 号：TD322[矿业工程—矿井建设]