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- Title
甬舟铁路金塘海底隧道矿山法段地下水限排标准研究.
- Authors
毛优达; 罗士瑾; 唐铭蔚; 凌学鹏; 王文正; 刘大刚; 毛升
- Abstract
In order to study the groundwater discharge limit standard of the mining section of the Jintang submarine tunnel of the Ningbo-Zhoushan Railway, considering that the V-shaped reverse slope drainage of the submarine tunnel requires mechanical forced drainage, the reasonable selection of the tunnel discharge standard has a significant impact on the later operation cost of the submarine tunnel., to investigate the waterproofing and drainage modes of 7 subsea tunnels under the mining method that have been built. By dividing according to whether the secondary lining can withstand water pressure, it can be divided into three cases: completely blocked tunnels, partially drained tunnels and fully drained tunnels. The relevant experience of waterproof and drainage design of Jiaozhou Bay Submarine Tunnel), revealing the waterproof and drainage mode of the tunnel section of the Ningbo - Zhoushan Railway submarine tunnel; Analyzed the discharge restriction standards for the land section of the 7 subsea mining tunnels that have been built and the discharge restriction standard data for each area of the land section of the Ningbo - Zhoushan Railway Subsea Tunnel, and calculated the overall level of guaranteeing the mine section of the Ningbo - Zhoushan Railway Subsea Tunnel. The total emissions from the Soy One Tunnel are close to the maximum emissions. Finally, combined with the hydrogeological characteristics of the tunnel section based on the engineering mine method, the waterproof and drainage model of the mine method section of the Ningbo - Zhoushan Railway Subsea Tunnel is proposed. The research results are as follows: (1) It is recommended that the mining section of the Ningbo-Zhoushan Railway Subsea Tunnel adopts the discharge and guide (limited discharge or full discharge) mode; (2) Based on statistical analysis and engineering analogy, it is suggested that the maximum emission of the mining section of the Ningbo-Zhoushan Railway Subsea Tunnel should be 0. 43 m³ / (m·d).
- Subjects
MINING engineering; MINE drainage; SLOPES (Physical geography); WATER pressure; ENGINEERING mathematics; ACID mine drainage
- Publication
Railway Standard Design, 2023, Vol 67, Issue 11, p121
- ISSN
1004-2954
- Publication type
Article
- DOI
10.13238/j.issn.1004-2954.202207010001