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41. 发明专利

JP4238989B2 Of shield tunnel construction method and shield excavator 有权
公开(公告)号：JP4238989B2
公开(公告)日：2009-03-18
申请号：JP2003379877
申请日：2003-11-10
申请人：清水建設株式会社
发明人：弘章四方 , 恵介川島 , 利光阿曽
IPC分类号： E21D9/06 , E21D9/12 , E21D11/00

42. 发明专利

JP4172022B2 Shrinkage width way of widening the methods and tunnel of the tunnel 有权
公开(公告)号：JP4172022B2
公开(公告)日：2008-10-29
申请号：JP2003413361
申请日：2003-12-11
申请人：清水建設株式会社
发明人：弘章四方 , 恵介川島 , 利光阿曽
IPC分类号： E21D9/06 , E21D11/00

48. 发明专利

JP4958044B2 Installation structure and method of installing the shield tunnel approach section 有权
公开(公告)号：JP4958044B2
公开(公告)日：2012-06-20
申请号：JP2007154023
申请日：2007-06-11
申请人：清水建設株式会社
发明人：利光阿曽
IPC分类号： E21D11/00 , E02D29/05
摘要： PROBLEM TO BE SOLVED: To provide an installing structure of a shield tunnel approach section which dispenses with the superfluous excavation of the lower section of the approach section, and suppress an increase in cost, and an installation method of the tunnel approach section. SOLUTION: In the installation structure of the shield tunnel approach section, an approach-section structure is installed in the ground. The approach-section structure is constituted in such a manner as to have a U-shaped cross section by using a batholiths segment 11, and side wall segments 12 which are provided on both sides of the batholiths segment 11. An earth anchor 13 which is driven into the ground in such a manner as to penetrate the side of the bottom surface of the batholiths segment 11 from the side of the upper end surface of the side wall segment 12, is inserted through the approach-section structure. The earth anchor 13 is anchored at the side of the upper end surface of the side wall segment 12 in a state that a tensioning force is applied, so that the approach-section structure can be fixed in the ground via the earth anchor 13. COPYRIGHT: (C)2009,JPO&INPIT

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