深、大竖井开挖时的新型旋转楼梯通道施工技术

Construction of New Type Spiral Staircase Passage in Excavation of Deep and Large Shaft

由于深、大竖井开挖和浇筑混凝土的需要,多数竖井施工人员的通道都采用垂直爬梯,但这种通道给施工带来许多不便,竖直爬梯在上、下时会大量消耗施工人员的体力并存在安全隐患;而在大型竖井中采用旋转楼梯通道,使用安全、稳定、经济,既能够提高工作效率,又能满足施工人员、监理人员下井时的安全要求。

In excavation and concrete placement of deep and large shaft,vertical ladders are usually used for engineers and workers to go up and down in majority of vertical shafts,but this kind of passage will bring inconvenience to construction,besides,engineers and workers will exhaust by climb up and down in vertical ladders and it is not safe. Therefore,spiral staircases are newly used in large shaft passage to improve safety,stability,economy and efficiency. Furthermore,the passage meets safety requirements of construction and supervision down to shaft.