Bridge thin-wall high pier hydraulic slip-form construction method

The invention discloses a bridge thin-wall high pier hydraulic slip-form construction method. The method includes the steps that (1) the thickness of concrete poured for the first time ranges from 60cm to 70 cm, the concrete is poured in three layers, and trail lifting can be conducted when the intensity of the concrete in the bottom layer reaches 0.2 MPa to 0.4 MPa; (2) before the concrete is grouted, a layer of 1:1 cement mortar with the thickness between 2 cm and 3 cm should be poured into a formwork, the concrete is peripherally evenly and symmetrically poured into the formwork and vibrated through an immersion vibrator, the vibration direction is changed frequently, a climbing rod and the sliding lift formwork are prevented from being directly vibrated, the immersion depth of the vibrator cannot exceed 50 mm in the concrete in the lower layer, and vibration is stopped in the sliding lift process of the sliding lift formwork; and (3) after initial sliding lift is conducted, the sliding lift formwork is li