应变法在摩阻试验中的应用与研究

Application and Research of Strain Method in Friction Test

预应力孔道的成孔质量和锚下有效预应力是预应力施工技术的重难点。为掌握孔道弯曲半径和关键点定位坐标准确性,以及预应力施工张拉质量,采用应变法对摩阻试验和反拉法的各试验参数进行验证和对比分析。研究成果可为预应力施工张拉质量的控制提供参考。

The quality of prestressing ducts and the effective prestress beneath anchors represent significant challenges in prestressing construction techniques.To ensure accuracy of the bending radius and key point positioning coordinates of the borehole,as well as the quality of prestressed construction and tensioning,the strain method was employed to validate and analyze test parameters from friction tests and reverse tensioning methods.The research results can provide reference for the control of tensioning quality in prestressed construction.