The invention provides an anti-crack and anti-leak construction method of arranging a
tower crane foundation below a waterproof baseplate, which is characterized in that the anti-crack and anti-leak construction method adopts the following steps: 1) constructing the
tower crane foundation; 2) mounting a
tower crane, and then constructing a flexible mat layer, a concrete mat layer, a waterproof layer, a waterproof protective layer and the waterproof baseplate from top to bottom around the
tower crane foundation, wherein the bottom surface of the flexible mat layer is leveled with the top surface of the
tower crane foundation; 3) adopting pure soil for tamping and
filling in the range of the
tower crane foundation, then using C20 anti-leak concrete for sealing from the center of the tower crane to the periphery, carrying out
calendering and anti-leak treatment, and making a 1-5% drainage slope; 4) arranging stress inducing joints of extruded
polystyrene boards on the edge outside the drainage slope and the periphery of the tower crane, and further using a weather-proofing
silicone sealant for tight caulking; and 5) dismantling the tower crane after completing the construction of a building, and using two
layers of coiled materials for making an reinforcing waterproof layer in the range of the tower crane foundation. The anti-crack and anti-leak construction method can effectively solve the different settlement problem between the tower crane foundation and the waterproof baseplate, the problem of producing negative
bending moment above the tower crane foundation, the
waterproofing failure problem and the water accumulation settlement problem of the tower crane foundation.