| 发明名称 |
EQUIPMENT FOR TUNNEL WIDENING WORK |
| 摘要 |
PROBLEM TO BE SOLVED: To provide tunnel widening work equipment capable of more effectively utilizing a space inside of the existing mountain tunnel aiming at widening. SOLUTION: The tunnel widening work equipment includes a protector (16) prescribing a traffic road set inside of the existing mountain tunnel (10) to be widened, a holder (18) installing machines used for crash of the lining of a tunnel and excavation of the neighboring ground and mounted on the protector capable of traveling in the direction of expansion and fixed means (30, 34 and 40) fixing the holder (18) to the protector (16) so that the holder can be released. COPYRIGHT: (C)2004,JPO |
| 申请公布号 |
JP2003278478(A) |
申请公布日期 |
2003.10.02 |
| 申请号 |
JP20020083415 |
申请日期 |
2002.03.25 |
| 申请人 |
PUBLIC WORKS RESEARCH INSTITUTE;SENTAN KENSETSU GIJUTSU CENTER;KUMAGAI GUMI CO LTD;SATO KOGYO CO LTD;TOBISHIMA CORP;FURUKAWA CO LTD |
发明人 |
MASHITA HIDETO;KAMATA HIROHISA;NAKAMORI JUNICHIRO;MITARAI YOSHIO;MASUDA MITSUO;KAKIUCHI YUKIO;KAMIYAMA HIDEO;YASUKAWA YOSHIHIRO;IMAOKA HIKOZO;HOSHINO TAKANORI;SAKURAI TOSHIHARU;WATANABE MITSUO;SAEKI HIROMI;FUJISHIRO YOSHINOBU |
| 分类号 |
E21D9/01;E21D9/00;E21D23/04;E21F13/08;(IPC1-7):E21D9/00 |
主分类号 |
E21D9/01 |
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