摘要
周边控制爆破后 ,形成的围岩表面可视为分形 ,其分形的维数反映了岩石经历的爆破过程 .利用分形几何理论 ,分析周边控制爆破对围岩的损伤 ,导出相应的关系式 ,并对定向断裂周边控制爆破在降低爆破对围岩损伤方面的作用进行了讨论 .研究结果对改进周边控制爆破参数 ,提高爆破效果 。
The surface of surrounding rock by controlled perimeter blasting can be looked as fractal whose dimension is the mirror of the explosion action process of rock. By means of the theory on fractal, the damage in rock by the controlled perimeter is analyzed, the corresponding relation formulae are deduced. The discussions are made that the controlled directional crack perimeter blasting can damage the surrounding rock to a less extent. The conclusions are very helpful to decide the correct parameters for the controlled perimeter blasting, improve the blasting results, and optimize the supporting of surrounding rock.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2001年第3期265-269,共5页
Journal of China Coal Society
