摘要
根据现场超大荷载高耸塔架、复杂地形地物、苛刻变形控制指标、众多条件约束等特点,提出人工挖孔灌注桩+新建大承台+新旧承台协同工作的技术方案,通过复杂环境下人工挖孔灌注桩施工技术、狭小密闭的空间下新承台大体积混凝土浇筑技术、新旧承台紧密结合技术,实现超大荷载高耸塔架基础的安全稳定的托换。
According to the characteristics of high tower,complex topography,severe deformation control index,many conditions and constraints,the paper puts forward a technical scheme for the manually excavated cast-in-place pile and new large bearing and the new and old contractors to work together,through the construction technology bored cast-in-place pile under complex environment,large volume concrete pouring technology of new bearing platform under small closed space,new and old bearing technology is closed combined,to realize the safe and stable replacement of the superlarge load tower foundation.
出处
《施工技术》
CAS
2018年第S1期526-533,共8页
Construction Technology
关键词
大荷载
塔架
基础托换
large load
tower
foundation under pinning
