摘要
以太平矿8309工作面为地质原型,采用水砂突涌模拟装置,进行了薄基岩采动条件下的水砂突涌相似模型试验。制备了4组不同颗粒级配的试样,分别模拟了裂隙角度为30°、60°、90°时,裂隙宽度为1~3 cm和2~4 cm时的突水涌砂条件。试验结果表明薄基岩条件下水砂突涌压力和时间与裂隙角度和宽度呈正相关关系,并受裂隙倾角控制。
With the Taiping Mine 8309 working face as a geological prototype and using a water sand gush simulating device, a test of similar model of water sand gushing under thin bedrock mining disturbance conditions was carried out. Four groups of samples with different particle gradations were prepared, and simulated the conditions of water inrush and sand gushing when the fractured angles were 30 °, 60 °, 90 °, and the fractured widths were 1~3 cm and 2~4 cm. The test results show that the pressure and time of water sand inrush under the condition of thin bedrock have a positive correlation with the fractured angle and width, and are effected by the inclination of the fracture.
作者
沈丁一
SHEN Ding-yi(China Railway Design Corporation,Tianjin 300143,China)
出处
《资源信息与工程》
2020年第1期49-52,共4页
Resource Information and Engineering
