Changjiang Survey Planning Design and Research Co., Ltd.

Chang Jiang River Scientific Research Institute

Qigui Yang

Xin Zhao

Xinqiang Niu

Lijun Su

Feng Li

Xuehong Yang

Baixing Liu

Xia Hua

Haibo Liu

Lixin Liu

Fei Yu

Qianlong Han

Weina Yu

Wei Huang

Tao Zhang

Zhiguo Zhang

Feng Zhao

Min Li

Yanlei Wan

Xuexian Zhu

Xiao Pan

YuFang Ni

WenGang Duan

QingYuan Yang

Duan Chen

Maohua Li

Hongbin Li

Shuda Zhou

Tieling Tao

Shiyu Xie

Shudong Wang

Huatang Shi

Huiqun Cao

Fuzhen Ding

Nianfeng Xu

Jie He

Yi Su

Yanguo Fang

Zhijun Zhang

Guoqiang Zhang

Zhengjian Miu

Provided is a laboratory experiment system including an upstream reservoir. A main river channel is connected to a water outlet of the upstream reservoir. A barrier dam is built up in the main river channel. Uneroded dam bodies are constructed on two side surfaces of the barrier dam. A branch river channel extends on a surface of the barrier dam. A material hopper is connected to a feed inlet of the branch river channel. River banks are constructed on outer sides of the uneroded dam bodies. The feed inlet is docked with a descending conveyor belt. A feeding end of the descending conveyor belt is docked with an ascending conveyor belt. A discharge end of the material hopper defines a bottom hole. The bottom hole is connected to a material pipe. A discharge end of the material pipe corresponds to an inner side of the ascending conveyor belt.

Laboratory experiment system for breaching of debris-typed barrier dam

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.

Method for hoisting and transporting assemblies in underground nuclear power plant

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.

Construction layout for caverns of underground nuclear power plant

A migration prevention system for radioactive wastewater from an underground nuclear power plant. The underground nuclear power plant includes a nuclear island including an underground cavern group including a reactor cavity and auxiliary cavities. The migration prevention system includes a protective layer coating the reactor cavity and an impermeable layer surrounding the nuclear island. The protective layer includes an inner liner, a drainage layer, and a filling layer of rock fractures in that order. The inner liner is configured to prevent exosmosis of the radioactive wastewater of the reactor cavity. The drainage layer is configured to gather and drain seepage water. The impermeable layer is disposed in the periphery of the underground cavern group including the reactor cavity and the auxiliary cavities, and is configured to isolate the underground cavern group from natural underground water.

Migration prevention system for radioactive wastewater of underground nuclear power plant

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.

Construction layout for underground caverns in nuclear island powerhouse of underground nuclear power plant

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.

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Wuhan, China

Qigui Yang