超大井径竖井临时改绞天轮平台布置及钢梁选择计算

Arrangement of Celestial Wheel Platform and Calculation of Steel Beam Selection for Super Large Diameter Shaft Temporary Modification

竖井井筒形成贯通后,凿井期间的凿井设备及设施,已不能满足井巷工程转入井底车场及大巷掘砌的需要,必须对回风竖井进行临时改绞,以便施工后期平巷工程。

After the vertical shaft is formed, the sinking equipment and facilities during the drilling process can not meet the needs of the tunnel engineering and the underground roadway and the main roadway. The return shaft must be temporarily modified to facilitate the construction of the later roadway.