筒中筒深电梯井基础施工技术

Construction Technology for the Foundation of Double-tube Deep Elevator Shaft

筒中筒深电梯井基础具有基坑深、面积大、结构复杂、施工工序多等特点。针对筒中筒深电梯井基础施工的特殊性和复杂性,重点介绍了施工方案的选择,施工工艺流程,施工缝的设置以及内外筒体的交叉作业施工等内容。工程实践表明,采取的技术措施行之有效,深电梯井至今未发现渗漏现象,工程质量得到保证。

The construction of double-tube deep elevator shaft foundation was characterized by deep excavation, extensive area, complex structure and excessive construction processes. Considering these characteristics, this paper introduced the choice of construction scheme, construction process, setting of construction joint and crossed construction of the inner and outer tube. Engineering practice shows that the method adopted was very effective. No leakage has been observed in the deep elevator shaft, which means the construction quality was successfully maintained.