CONSTRUCTION TECHNOLOGY OF VERTICAL PRESTRESSED ANCHOR CABLE
In recent years,with the continuous development of building height,the utilization rate of underground space of high-rise buildings at home and abroad is also getting higher and higher,and the excavation of foundation pit is also getting deeper.The support form of deep foundation pit is generally pile-anchor system,which is suitable for complex geological conditions and is more suitable in terms of economy and safety.However,when the site is narrow,the anchoring angle is limited,and the foundation pit is greatly affected by the external environment,the ordinary anchor cable has limited effect on strengthening the stability of the foundation pit.However,when the vertical prestressed anchor cable is adopted,the vertical anchor cable is convenient for the construction of the narrow site,and the addition of prestress can greatly enhance the stability of the foundation pit and effectively control the displacement of the foundation pit and the surrounding settlement.