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收稿日期: 2013-03-20
修回日期: 2013-07-01
网络出版日期: 2013-10-24
A Discussion on the Geological Risks Influencing the Construction of Connection Galleries of Metro Works in the Hankou Area
Received date: 2013-03-20
Revised date: 2013-07-01
Online published: 2013-10-24
李庆禹 , 李慎奎 . 影响汉口地区地铁联络通道施工的地质风险探讨[J]. 隧道建设, 2013 , 33(10) : 841 -846 . DOI: 10.3973/j.issn.1672-741X.2013.10.008
The geological risks influencing the construction of connection galleries of Metro works in Hankou,such as the abrupt change of the geological condition of the local area, poor geological conditions unrevealed by surveys, the risk of water outburst under high aquifer water pressure, risks associated with high permeability, differences in the geological conditions caused by seasonal rainfalls, and the sudden freezing and defrosting caused by abrupt geological change, are discussed. Advices, including perfecting the basic geological survey data, increasing the exploration drilling, timely design modification, the use of freezing controls, adoption of comprehensive geological prediction technologies, management improvement and professional development of technical staff, are provided to improve the risk management in Metro construction in Wuhan.
Key words: Metro; connection gallery; freezing method; waterrich area; risk analysis; risk control
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