One kind of the construction of the intermediate pile subway station positioning method blanket Method

The invention relates to a method for positioning a middle pile of a spread built subway station. The method comprises the following steps of: 1) digging a pile hole according to the design requirement, hoisting a temporary middle pile reinforcement cage in the pile hole, and arranging a positioner on the inner wall of a pile enclosing hole at the upper part of the temporary middle pile reinforcement cage; 2) arranging a pile hole positioning bracket for fixing an H-shaped steel in the pile hole, and fixing the pile hole positioning bracket at the top of the pile hole through an embedded connecting member; 3) checking and correcting the bottom positioner, and pouring concrete of a basic structure of the lower part of the temporary middle pile to the designed position after the bottom positioner passes the check; and 4) immediately hoisting the H-shaped steel after the pouring operation of the step 3) is finished, checking and correcting the H-shaped steel by means of the positioner when the H-shaped steel is hoisted into the hole, and immediately locking and positioning the H-shaped steel through the positioning bracket after checking and correcting. The method for positioning themiddle pile of the spread built subway station is accurate in positioning and simple, and can ensure the safety of the whole spread system.