Panel-type framework prestressed anchor rod flexible support structure and construction method thereof

The invention discloses a panel-type framework prestressed anchor rod flexible support structure and a construction method thereof. Four sides of a soil baffle plate (4) are connected with a cross beam (1) and an upright post (2), a prestressed anchor rod (3) passes through the crossed part of the cross beam (1) and the upright post (2), cement mortar is wrapped around an anchorage section (6) of the prestressed anchor rod (3), cement mortar is wrapped around a plastic sleeve (13), and the end of the prestressed anchor rod (3) is anchored at the crossed part of the cross beam (1) and the upright post (2) by an anchor head (5) and anchored in the stable soil layer through the anchorage section (6). The method comprises the following steps of: putting a steel bar anchor pull rod (11) into a hole (9); pouring a coping crown beam (7), the upright post (2), the cross beam (1) and the soil baffle plate (4); performing prestressed tensioning on a steel bar anchor pull rod (12), and fastening, connecting and locking the prestressed anchor rod (3) to the anchor head (5) by using an anchorage device (14); and constructing the prestressed anchor rod (3), the cross beam (1), the upright post (2) and the soil baffle plate (4) of the next working face according to the steps, and finishing tensioning and anchoring of the prestressed anchor rod (3) of each layer.