In this paper, a rheologic damage fracture model for jointed rocks is built and is utilized to analyze stability of seam floor rocks in mining.
本文采用损伤力学的研究方法，建立了裂隙岩体的损伤流变断裂力学模型。
In pressure vessels, C and D seam which are located at the joint of flange, tube-shape object, jointed tube, and head of pressure vessels separately are the most complex seams.
压力容器设备中法兰与筒体、法兰与接管连接处的C类焊缝和封头端部、筒体上马鞍形的D类焊缝是最为不规则的且施焊工艺最为复杂的焊缝。
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