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Применить Всего найдено 5. Отображено 4.
04-01-2018 дата публикации

METHOD FOR HOISTING AND TRANSPORTING ASSEMBLIES IN UNDERGROUND NUCLEAR POWER PLANT

Номер: US20180002144A1
Принадлежит:

A method for hoisting and transporting assemblies in an underground nuclear power plant, the method including: 1) pouring concrete onto a reactor cavern to form a rock anchor beam; hoisting a circular bridge crane to the reactor cavern through a hoist shaft on a top of the reactor cavern; mounting the circular bridge crane on the rock anchor beam by using a truck crane; 2) installing a containment cylinder and a track beam of a polar crane in the reactor cavern using the circular bridge crane; hoisting a gantry crane on one end of a polar crane girder and sending the polar crane girder to the reactor cavern; hoisting the other end of the polar crane girder using the circular bridge crane; allowing the polar crane girder to be horizontal; and mounting the polar crane girder on the track beam. 1. A method for hoisting and transporting assemblies in an underground nuclear power plant , the method comprising:1) pouring concrete onto a reactor cavern to form a rock anchor beam; hoisting a circular bridge crane to the reactor cavern through a hoist shaft on a top of the reactor cavern; mounting the circular bridge crane on the rock anchor beam by using a truck crane;2) installing a containment cylinder and a track beam of a polar crane in the reactor cavern using the circular bridge crane; hoisting a gantry crane on one end of a polar crane girder and sending the polar crane girder through the hoist shaft to the reactor cavern; hoisting the other end of the polar crane girder using the circular bridge crane; allowing the polar crane girder to be horizontal under a combined effect of the gantry crane and the circular bridge crane; and mounting the polar crane girder on the track beam;3) employing the track beam and the polar crane girder as supporting points of an assembly jig of a steel lining on a containment dome, and hoisting processed pieces of the steel lining to the reactor cavern through the hoist shaft; soldering and assembling the pieces on the assembly jig; and4 ...

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04-01-2018 дата публикации

CONSTRUCTION LAYOUT FOR UNDERGROUND CAVERNS IN NUCLEAR ISLAND POWERHOUSE OF UNDERGROUND NUCLEAR POWER PLANT

Номер: US20180003054A1
Принадлежит:

A construction layout for underground caverns in a nuclear island powerhouse of an underground nuclear power plant, including: two primary caverns accomodating nuclear reactor powerhouses, combined caverns, electric powerhouse caverns, pressure relief caverns, a first primary traffic tunnel, a second primary traffic tunnel, a third primary traffic tunnel, a top adit system, a ground adit system, secondary traffic tunnels, and a side traffic tunnel. Each combined cavern and each electric powerhouse cavern are disposed at two sides of each primary cavern, respectively. Two combined caverns are in end-to-end connection and the arrangement direction of the two combined caverns are in parallel to the connecting line of the medial axes of the two primary caverns. Each pressure relief cavern is disposed between each combined cavern and a corresponding electric powerhouse cavern. 1. A construction layout for underground caverns in a nuclear island powerhouse of an underground nuclear power plant , the construction layout comprising:a) two primary caverns accomodating nuclear reactor powerhouses;b) combined caverns;c) electric powerhouse caverns;d) pressure relief caverns;e) a first primary traffic tunnel;f) a second primary traffic tunnel;g) a third primary traffic tunnel;h) a top adit system;i) a ground adit system;j) secondary traffic tunnels; andk) a side traffic tunnel;whereina connecting line of medial axes of the two primary caverns accomodating nuclear reactor powerhouses is perpendicular to a longitudinal direction of a mountain;each combined cavern and each electric powerhouse cavern are disposed at two sides of each primary cavern, respectively; two combined caverns are in end-to-end connection and an arrangement direction of the two combined caverns are in parallel to the connecting line of the medial axes of the two primary caverns; each pressure relief cavern is disposed between each combined cavern and a corresponding electric powerhouse cavern;outer sides of ...

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04-01-2018 дата публикации

CONSTRUCTION LAYOUT FOR CAVERNS OF UNDERGROUND NUCLEAR POWER PLANT

Номер: US20180003055A1
Принадлежит:

A construction layout for caverns of an underground nuclear power plant, including: two primary caverns accommodating nuclear reactor powerhouses, combined caverns, electric powerhouse caverns, pressure relief caverns, a first primary traffic tunnel, a second primary traffic tunnel, a third primary traffic tunnel, a top adit system, and a ground adit system. Each combined cavern is disposed on one side of each of the two primary caverns. Each electric powerhouse cavern and each pressure relief cavern are disposed on two sides of each of the two primary caverns perpendicular to the longitudinal direction of the mountain. Each electric powerhouse cavern is perpendicular to the longitudinal direction of the mountain. The first primary traffic tunnel and the third primary traffic tunnel are disposed along the longitudinal direction of the mountain on outer sides of the two combined caverns, respectively. 2. The layout of claim 1 , whereinthe top adit system comprises: a first primary adit, a first top adit of a first primary cavern, a second top adit of a second primary cavern, a second primary adit, a third primary adit, third top adits of end parts of the combined caverns, fourth top adits of the electric powerhouse caverns; fifth top adits of middle sections of the combined caverns, a sixth top adit of a first pressure relief cavern, and a seventh top adit of a second pressure relief cavern;the first primary adit, the second primary adit, and the third primary adit are arranged along the longitudinal direction of the mountain and communicate with the ground surface; an elevation of the first primary adit is higher than an elevation of the second primary adit and an elevation of the third primary adit;the first primary adit communicates with skewbacks of arch crowns of the two primary caverns via the first top adit and the second top adit, respectively;one end of the second primary adit and one end of the third primary adit communicate with the endwall of the arch ...

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04-01-2018 дата публикации

Construction layout for caverns of underground nuclear power plant

Номер: US20180003056A1

A construction layout for caverns of an underground nuclear power plant, including: two primary caverns accommodating nuclear reactor powerhouses, electric powerhouse caverns, safe powerhouse caverns, auxiliary powerhouse caverns, nuclear fuel powerhouse caverns, connecting powerhouse caverns, a first primary traffic tunnel, a third primary traffic tunnel, a second primary traffic tunnel, a fourth primary traffic tunnel, and a primary steam channel. The electric powerhouse caverns, the safe powerhouse caverns, and the nuclear fuel powerhouse caverns are arranged along the longitudinal direction of the mountain. Each of the safe powerhouse caverns and each of the nuclear fuel powerhouse caverns are disposed on two sides of each of the two primary caverns in the longitudinal direction of the mountain, respectively. Each of the electric powerhouse caverns and each of the safe powerhouse caverns are located on a same side of each the two primary caverns.

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