The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 2019
Filed:
Dec. 12, 2016
Changjiang Survey Planning Design and Research Co., Ltd., Wuhan, CN;
Xinqiang Niu, Wuhan, CN;
Qigui Yang, Wuhan, CN;
Hongbin Li, Wuhan, CN;
Shuda Zhou, Wuhan, CN;
Xin Zhao, Wuhan, CN;
Huatang Shi, Wuhan, CN;
Qianlong Han, Wuhan, CN;
Nianfeng Xu, Wuhan, CN;
Haibo Liu, Wuhan, CN;
Jie He, Wuhan, CN;
Weina Yu, Wuhan, CN;
Lijun Su, Wuhan, CN;
Yanguo Fang, Wuhan, CN;
Abstract
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.