浅埋地下快速通道逆作法一桩一柱高精度调垂关键技术研究与应用

逆作法采用一桩一柱结构设计形式时,钢柱垂直度偏差控制对施工质量有很大影响,是施工的难点和重点。结合杨高路(世纪大道—浦建路)改建工程1标,介绍了浅埋地道逆作法一桩一柱先插法施工的高精度调垂技术。该技术主要为待钢柱吊装下放后,借助特殊定制的调直架,将其定位和垂直度调整至设计精度,调直架上层为混凝土浇灌平台,可以有效提高设备的工作效率,节约施工成本。该项技术在杨高路(世纪大道—浦建路)改建工程1标的应用中取得了良好效果。

Study and Application of Key One-pile One-column High Precision Vertical Adjustment Technology of Reversed Construction Method for Shallow Buried Underground Fast Channel

When the reversed construction method adopts the design form of one-pile one-column structure,the vertical deviation control of steel column has great influence on the construction quality,and is the difficulty and the key point of construction.Combined with Yanggao Road(Shiji Avenue-Pujian Road)Reconstruction Project Bid 1,the high precision vertical adjustment technology of one-pile one-column first inserting method of shallow buried subway reversed construction method is introduced.This technology is mainly to position the steel column and adjust its verticalness to the design precision with the help of the specially fabricated straightening frame after the steel column is hoisted and lowered.The upper layer of straightening frame is a concrete poured platform,which can effectively improve the working efficiency of equipment and save the construction cost.The application of this technology has achieved good results in Yanggao Road(Shiji Avenue-Pujian Road)Reconstruction Project Bid 1.