Toshiba Plant Systems & Services Corporation

Isao Hoshi

A benchmark marking tool includes a marking plate having an upper surface formed in a flat shape so as to mark a benchmark on the upper surface, a stud extending from a back surface of the upper surface of the marking plate and buried in a structure such as a floor of a building to fix the marking plate, and an outer peripheral flange provided around the marking plate and buried in a coating layer applied to the structure. The marking plate is provided such that the upper surface is located to be flush with or below an upper surface of the coating layer formed on the structure when the marking plate is located in the structure of the building.

Benchmark marking tool and benchmark marking method

Efficiency of installation work of equipment such as an ECCS pump is enhanced. In an installation method of equipment, a pit can unit in which an upper side frame, a pit can, various reinforcing steels including vertical reinforcing bars reinforcing the above from a periphery, and an anchor plate supporting mechanism are integrated is manufactured in advance, and the pit can unit is placed on an MMR via a lower side frame. Further, an anchor bolt unit is disposed on the anchor plate supporting mechanism after primary concrete is deposited, a relative positional relationship of respective foundation bolts relative to the pit can is corrected by using a template, and secondary concrete is deposited under the state in which the positional relationship is corrected. After that, the ECCS pump is carried into the pit can, and an installation of the ECCS pump is completed by fixing the carried ECCS pump through the respective foundation bolts of which bottom sides are embedded.

Installation method of equipment, anchor member supporting mechanism and anchor bolt unit

Method of installing equipment into a pit container using an anchor member supporting mechanism and an anchor bolt unit

As a temporary drainage equipment, a penetration hole is formed to a floor slab of a building under construction, the penetration hole is provided with a substantially cylindrical funnel portion opened to a floor surface of a room, a connection pipe is communicated to a bottom portion of the funnel portion, and a hose guide pipe is inserted to the lower end portion of the connection pipe. An inner flange portion is provided to the lower end portion of the hose guide pipe so as to be flush with a ceiling surface of the downfloor room.

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Hiratsuka, Japan

Isao Hoshi