０　引言巷道断面设计的合理与否，对一个企业的经济效益和生产的安全条件有着直接的影响，因此，合理的选择与设计巷道断面就显得尤其重要。通常，我们选择巷道断面时，基本上是以下列几个因素为主要依据：●巷道中的人行要求；●巷道中运输设备的类型及数量；＼●支护厚... 0 Introduction The design of roadway section is reasonable or not, which has a direct impact on the economic benefits of an enterprise and the safety conditions of production. Therefore, it is very important to select and design the roadway section rationally. Usually, when we choose the roadway section, we basically take the following factors as the main basis: ● Pedestrian requirements in the roadway; ● Type and quantity of transportation equipment in the roadway;