整体现浇式预应力锚索桩板墙工后工况力学特征分析

Mechanical Characteristic Analysis of Post-construction Condition of Integral Cast-type Prestressed Anchor Cable Sheet Pile Wall

将整体现浇式预应力锚索桩板墙运用在混凝土连续浇筑施工中,虽然可以缩短工期,减少成本投入,但其设计计算方法还不成熟。通过对云南某山区高速公路上整体现浇预应力锚索桩板墙结构形式实体工程系统的原型试验研究,实测锚索桩板墙在不同工况下的内力及填土土压力,以此为基础分析了该支挡结构在各工况下的力学特征,为设计计算方法的改进提供参考依据。本文选取工后工况下桩板墙的力学特征分析进行阐述。

Integral cast-type prestressed anchor cable sheet pile wall used in the construction of continuous cast concrete shortens the duration and reduces capital costs, but its design calculation method is not yet ripe. By the research on prototype test of whole in-situ prestressed anchor cable sheet pile wall structure entities of a mountain highway in Yunnan province, measures the internal force and fill stress of anchor cable sheet pile wall in different conditions, based on this, analyzes the mechanical characteristics of retaining structures in all of the following conditions, providing reference for improvement of design calculation method. The paper presents the mechanical characteristics of pile-sheet retaining wailunder elaboration.