Underwater anti-explosion composite protection structure based on hollow glass beads and construction method of underwater anti-explosion composite protection structure

The invention discloses an underwater anti-explosion composite protection structure based on hollow glass beads and a construction method of the underwater anti-explosion composite protection structure. The composite protection structure is composed of a basalt fiber high-strength concrete layer and a hollow glass bead-doped concrete layer which are arranged on the surface of a wading building through cast-in-place construction. The ultrahigh strength of the basalt fiber-doped reactive powder concrete is utilized to bear short-distance underwater explosion, and the problem that the durabilityof a steel bar in a main body structure is reduced after the steel bar is corroded by ions in a water body is solved. Meanwhile, the wave impedance mismatch characteristic of sealing gas in the hollowglass beads and surrounding media is utilized, reflection of underwater explosion shock waves is achieved, and propagation of stress waves in the structure is slowed down. According to the compositeprotection structure, throu