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WELL, METHOD FOR PREVENTING OXIDIZATION OF GROUNDWATER IN WELL, CONSTRUCTION METHOD FOR EMERGENCY WELL, AND EMERGENCY WELL CONSTRUCTED BY THE CONSTRUCTION METHOD
WELL, METHOD FOR PREVENTING OXIDIZATION OF GROUNDWATER IN WELL, CONSTRUCTION METHOD FOR EMERGENCY WELL, AND EMERGENCY WELL CONSTRUCTED BY THE CONSTRUCTION METHOD
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机译:井,防止井中地下水氧化的方法,应急井的施工方法以及由该施工方法构造的应急井
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摘要
PROBLEM TO BE SOLVED: To provide a method for preventing the oxidization of groundwater in a well in the nonuse of the well, and the well for use in the method.;SOLUTION: The well 1 comprises: a column pipe 13 for collecting the groundwater inward; an injection section for injecting an inert gas into an upper section with respect to the groundwater in the column pipe 13; a cap 10 which is attached to an upper end of the column pipe 13 and which serves as a sealing member for sealing the inside of the column pipe 13 with the inert gas infilled in the column pipe 13; a concentration meter 9 for measuring the concentration of oxygen in the column pipe 13; and a detector 15 for detecting gas generated from under the ground and having the risk of an explosion etc. or doing harm to the human body.;COPYRIGHT: (C)2009,JPO&INPIT
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