Sample preparation structure for testing bonding strength of JS waterproof layer

The utility model discloses a sample preparation structure for testing the bonding strength of a JS waterproof layer, which comprises a foundation wall, the surface of the foundation wall is provided with the JS waterproof layer, a drawing head is arranged outside the JS waterproof layer, and the drawing head is bonded with the JS waterproof layer through an epoxy resin adhesive layer; the sample preparation structure further comprises a fixed supporting frame, the drawing head is sleeved with the fixed supporting frame, and the fixed supporting frame and the JS waterproof layer are bonded through a pressure-sensitive adhesive layer. The drawing head has the beneficial effects that the fixed support frame can be firmly bonded with the JS waterproof layer through the pressure-sensitive adhesive layer, so that the drawing head is fixed and supported, the drawing head is prevented from sliding and shifting, the drawing head is ensured to be fully bonded with the epoxy resin adhesive layer, the effective bonding