The invention relates to an
underwater tunnel transverse
smoke exhaust adjusting device and method for intervening the
smoke flow state, the device comprises two passing lanes arranged in an
underwater tunnel, an
emergency evacuation corridor and a
smoke exhaust pipeline, one side of each passing lane is provided with a plurality of smoke exhaust ports communicated with the smoke exhaust pipeline, and the interiors of the smoke exhaust ports are connected with smoke exhaust adjusting assemblies through fastening connecting assemblies; a short blade valve plate driven by a driving motor I is rotationally arranged in a mounting frame I in the smoke exhaust adjusting
assembly, a long blade valve plate driven by a driving motor II is rotationally arranged in a mounting frame II, and the short blade valve plate is perpendicular to the long blade valve plate; cooperative adjustment of a smoke layer downward inclination angle controlled by a long-blade valve plate and a smoke
steering angle controlled by a short-blade valve plate intervenes in
smoke flow power behavior; according to the tunnel transverse smoke exhaust adjusting device, through the limiting conditions of the downward inclination angle and the
steering angle, based on the relation between pressure and speed distribution and smoke amount distribution, the resistance coefficient and the like, the opening degrees of long and short valve plates in all smoke exhaust ports are obtained, dynamic regulation and control are achieved, and the smoke exhaust effect is improved.