Gas turbine having an annular passage subdivided into annulus sectors

A gas turbine comprising:

• at least one inner casing part and at least one outer casing part, between which both casing parts is at least partially arranged an annular passage which circumferentially encloses an useful flow of a working fluid, which prevails during operation of the gas turbine, and a gas turbine rotor, wherein the annular passage is designed to direct a cooling fluid in the circumferential direction,
• wherein the annular passage is fluidically subdivided into annulus sectors in the circumferential direction by partitions, designed as separating plates, which are adapted to prevent a free, unhindered fluid exchange between the individual annulus sectors,
• wherein provision is made at least partially in the annular passage for a pipe which fluidically interconnects individual annulus sectors, wherein the pipe is designed as a distribution pipe which is fluidically connected to at least one cooling fluid feed line for cooling fluid feed and has at least one outlet opening, which is designed for the transfer of cooling fluid from the pipe into the annulus sectors.