GFRP anti-floating design method of water area shield tunnel crossing pipeline

The invention relates to a GFRP anti-floating design method of a water area shield tunnel crossing pipeline. The method includes the following steps that the linear meter floating design load q of the pipeline is calculated according to water filling operation working conditions of the water area shield tunnel crossing pipeline; according to pipeline material characteristics, conveying medium characteristics and pipeline operation environment conditions, the pipeline span L is determined; the anti-floating design load Q of an anti-floating anchoring element is determined; according to the height h of a bottom concrete balance weight layer, the length L1 of the bottom concrete balance weight layer is determined; reinforcement computation and design are conducted on the bottom concrete balance weight layer; the number n of GFRP anchoring screws is determined; the length B, thickness b and bottom plate thickness a of a pipe clamp are determined. A corrosion-free GFRP anti-floating design scheme is disclosed for