含不同形状单孔的静态定向破岩机理及技术研究

Study on the technology and mechanism of static directional cracking of rock with different shapes of charge holes

利用混凝土易于造孔的特点,设计了含不同长短轴（宽）比椭圆、矩形预埋孔试块,得到长短轴比在2∶1~3∶1和长宽比在3∶1~5∶1时,定向开裂效果最好,并运用ANSYS软件进行了模拟分析,结论与物理实验结果相吻合。

With the characteristics of easy hole making of concrete, the test block with different length and length（ width） is designed, and the length and width ratio of the 2： 1 ？3：1 and the length width ratio of 3： 1 ？5： 1 are obtained. At the same time, using ANSYS software simulation, the conclusion is consistent with the physical experiment results.