张家湾拱桥高填弃渣地基三维监测探讨

摘要

In the cup lock support cast-in-place construction of Zhangjiawan arch bridge, the cast-in-place arch ring ground is tunnel dreg with the height of 53m, and the huge 3D deformation and long construction period impose great construction safety hazard. The 3D deformation monitoring and deformation stability trend of the ground are discussed in detail.%在张家湾拱桥碗扣支架现浇拱圈的施工中,现浇拱圈地基为隧道弃渣,弃渣体高度达53m,地基三维变形大且施工周期较长,施工安全风险高. 该文就施工中对地基的三维变形监测及变形稳定趋势分析作了详细探讨.