The geometrically combined relation of the syncline stucture with the pit controls the mechanical effect of the stuctural plane and rock mass structure. 向斜构造与采场的几何组合关系控制着结构面和岩体结构的力学效应。
Structure of coke oven bridge pipe and valve body are introduced,in which several structures are respectively reviewed.Notices for application and design are put forward. 介绍了炼焦炉中桥管与阀体结构的形式,分别对几种结构形式加以评述,指出了今后设计时应注意的问题。