| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve a problem in the conventional pollution prevention equipment of bottom sitting type, in which a worker has always to watch the situation of a tide level and a seabed and adjust the delivered length of the corresponding curtain part by lifting winches, and as a result the control items of the worker increase and has lead to the problem of work efficiency. <P>SOLUTION: The pollution prevention equipment of bottom sitting type of the invention comprises: a floating body surrounding the sea surface portion of the construction area; a pollution prevention curtain hanging down from the floating body; a curtain bottoming detecting means provided in the lower end of the pollution prevention curtain; a length adjustment means of the pollution prevention curtain; a tide level measuring means; and a storing and computing processing device which computes the delivered in and delivered out amount of the pollution prevention curtain from bottoming and non-bottoming information from the curtain bottoming detecting means and tide level information from the tide level measuring means. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
