Construction Technology of No.1 Return Air Roadway at Shaft Bottom of Yixin Coal Industry Co.,Ltd.
In order to study the construction technology of continuous cross excavation in the return air roadway,taking No.1 return air roadway at the shaft bottom of Yixin Coal Industry Co.,Ltd.as the engineering background,the continuous cross excavation construction technology was analyzed and studied.By analyzing the construction technology of cross excavation return air roadway,the technical difficulties of roadway support reinforcement,ventilation and sealing maintenance,and roadway roof construction were clarified.The three-dimensional layout of upward roadway excavation roof penetration through the main roadway was selected,and temporary and permanent support schemes for different areas were designed to determine the construction design scheme of roadway roof penetration.Adopting these methods for tunneling through large roadways can not only effectively improve the working environment in deep areas,but also ensure the stability of production continuity and surrounding rock,providing reference for the construction of subsequent projects.
return air roadway at shaft bottomcross excavationtop penetrationsupport method
万方数据
维普
