flood doors (тоннелепроходческая машина)

[Pothead]

подскажите, насколько корректен такой перевод сабжа - "шлюзные ворота"
контекст:
ADVANTAGES OF HAVING FLOOD DOORS
a) Surface settlement is minimized through positive face control.
b) Cutter assemblies can be replaced from within the protection of the cuttinghead.
c) The cuttinghead can be closed off immediately, if an unexpected heading of water or
unstable ground is encountered.
d) By controlling the opening of flood doors while tunnelling in unstable ground, the
heading can continue to be advanced.
e) Use of compressed air has been avoided in circumstances where otherwise it would have been required.
........

[Einer]

У Вас, очевидно, речь идет о способе проходки туннеля со стабилизацией неустойчивого забоя тиксотропной [бентонитовой] пригрузкой.