Shallow water area direct burial pipeline fine detection platform and fine detection method

The invention discloses a shallow water area direct burial pipeline fine detection platform and method. The platform comprises a bottom plate and safety guardrails fixed to the two sides of the bottomplate. The bottom plate is formed by splicing a plurality of square foam blocks; every two adjacent foam blocks are connected in a matched and clamped mode through the corresponding extending clamping block and the corresponding inwards-concave clamping groove. The foam block comprises a square connecting part with a through hole formed in the middle and a rotating part rotationally clamped in the through hole. Sounding holes are formed in the rotating parts in rows; anchoring holes are formed in the positions, close to the four corners, of the bottom plate. The bottom plate is composed of the multiple spliced foam blocks, a platform for bearing operators and operation tools is formed, the sounding holes are formed in the foam blocks, the manufacturing cost is low, and the stability in water is good; the foam blo