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1. 发明专利

JP2002070484A WIDENING EXCAVATION DEVICE OF TUNNEL EXCAVATOR 失效
公开(公告)号：JP2002070484A
公开(公告)日：2002-03-08
申请号：JP2000258277
申请日：2000-08-29
申请人： OKUMURA CORP , HITACHI SHIPBUILDING ENG CO
发明人： TSUTSUI YOICHI , IMAI KENICHI , NAKADA KUNIO , HANAOKA TAIJI
IPC分类号： E21D9/087 , E21D9/06 , E21D9/08
摘要： PROBLEM TO BE SOLVED: To provide a widening excavation device of a tunnel excavator capable of ensuring sufficient strength and overbreak and making widening excavation. SOLUTION: The widening excavation device of the tunnel excavator is so constituted that a cutter driving drum 24 for supporting a main cutter head 2A is set around a shield axial center 0 in a rotatable manner in the front of a shield body 1, an oscillating shaft 27 parallel with the shield axial center 0 is connected between the cutter driving drum 24 and the main cutter head 2A at an eccentric position from the shield axial center 0, an auxiliary cutter head 2B supported by the oscillating shaft 27 through an oscillating arm 26 in a state capable of being freely oscillated is set so as to make flush with the main cutter head 2A to a notch section 25 formed in the main cutter head 2A and that the auxiliary cutter head is capable of being freely projected to the circumferential side of an excavation section by the main cutter head 2A from the notch section 25 through the oscillation of the oscillating arm 26.

2. 发明专利

JP2002054393A TAIL-SEAL STRUCTURE OF WIDENING TUNNEL EXCAVATOR 失效
公开(公告)号：JP2002054393A
公开(公告)日：2002-02-20
申请号：JP2000240525
申请日：2000-08-09
申请人： OKUMURA CORP , HITACHI SHIPBUILDING ENG CO
发明人： SATO KAZUO , NAKADA KUNIO , SHINKAWA JUNJI , HANAOKA TAIJI
IPC分类号： E21D9/06 , E21D11/00
摘要： PROBLEM TO BE SOLVED: To provide a tail-seal structure of a widening tunnel excavator for finely sealing the body even if the body makes approach, separation and movement while oscillating. SOLUTION: A plurality of rows of fixed seal brushes 42 and 43 are provided to a fixed tail plate 45 of the fixed body and the inside of a movable tail plate 46 of the oscillating external body, joint arms 51 slidable in the direction of widening are respectively connected between the ends of the fixed seal brushes 42 and 43 in a separation section of the fixed body 4 and the oscillating external body 7 in a state capable of being oscillated, at the same time, joining brushes 55 for connecting the fixed seal brushes 42 and 43 are provided to the insides of the joint arms 51, and a tail cover 44 covering the separation section and coming into contact with the movable tail plate 46 and the insides of the joint arms 51 are placed on the fixed tail plate 45.

3. 发明专利

JP2002256793A TUNNEL EXCAVATOR 失效
公开(公告)号：JP2002256793A
公开(公告)日：2002-09-11
申请号：JP2001057516
申请日：2001-03-02
申请人： OKUMURA CORP , HITACHI SHIPBUILDING ENG CO
发明人： HORIMI SHIGERU , NAKADA KUNIO , SHINKAWA JUNJI , HANAOKA TAIJI
IPC分类号： E21D9/087 , E21D9/08
摘要： PROBLEM TO BE SOLVED: To provide a tunnel excavator having a plurality of cutter heads for drilling a different-diameter tunnel even in excavation of the tunnel with a large bore. SOLUTION: On a rotational receiving base arranged in a partition wall member arranged in the front part of a shield main body, a main cutter head 3 having six first spoke-shaped long cutter members 21 protruded radially is supported via a supporting leg body 25, and in the partition wall member, an auxiliary cutter head 4 having a pair of second cutter members 33 protruded on the both sides is supported freely rotationally behind the main cutter head 3. The supporting leg body 25 is constructed of a pair of supporting leg parts 25a arranged symmetrically to each other. When both of the cutter heads 3 and 4 are turned, the second cutter members 33 of the auxiliary cutter head 4 can be guided into a guiding space part A formed between the both supporting leg parts 25a.

4. 发明专利

JPH1113380A TUNNEL CONSTRUCTION DEVICE AND TUNNEL CONSTRUCTION METHOD 失效
公开(公告)号：JPH1113380A
公开(公告)日：1999-01-19
申请号：JP17225897
申请日：1997-06-27
申请人： OKUMURA CORP , ISHIKAWAJIMA HARIMA HEAVY IND
发明人： SATO KAZUO , NAKADA KUNIO , FUJII SHIGEO , YOSHIDA YUZURU , DANNO HITOSHI
IPC分类号： E21D9/06 , E21D9/08 , E21D9/087
摘要： PROBLEM TO BE SOLVED: To provide a tunnel construction device and a tunnel construction method capable of varying a tunnel section on the way without using an intermediate shaft. SOLUTION: This tunnel construction device constructs a small sectional tunnel T2 connecting to a large sectional tunnel T1. In that case, it is equipped with an erector 3 assembling a segment S with a large diameter in order to construct a large sectional tunnel T1 in a shield frame 1 of a shield boring machine 2 and, at the same time, assembling the segment S with a small diameter in order to construct a small sectional tunnel T2, a machine side cover member 22 provided to the rear end of the shield frame 1 in a detachable manner, removed in the case the large sectional tunnel T1 is constructed and mounted in order to close between the shield frame 1 and small sectional tunnel T2 in the case the small sectional tunnel T2 is constructed, and a tunnel side cover member 20 mounted to an opening section of the large sectional tunnel T1 in order to close a space between the large sectional tunnel T1 and small sectional tunnel T2 in the case it is switched from the large sectional tunnel T1 to the small sectional tunnel T2.

5. 发明专利

JP2003049596A Method of constructing tunnel having widened section 有权
标题翻译：具有宽带化隧道的方法
公开(公告)号：JP2003049596A
公开(公告)日：2003-02-21
申请号：JP2001239094
申请日：2001-08-07
申请人： Hitachi Zosen Corp , Okumura Corp , 日立造船株式会社 , 株式会社奥村組
发明人： HANAOKA TAIJI , NAKADA KUNIO , TAKUBO ATSUSHI , OKUNO SABURO
IPC分类号： E21D9/06
摘要： PROBLEM TO BE SOLVED: To provide a method of constructing widened tunnel by which a widened section having a prescribed extent can be constructed efficiently on one side of the main body section of a tunnel by exerting little bad influence upon the surrounding ground simultaneously with the excavation of the main body section of the tunnel by means of a shield machine.
SOLUTION: The main body section and widened section of the tunnel are simultaneously excavated over the full length of the tunnel by means of the shield machine provided with a cutter head for excavating the main body section and a small-diameter cutter head for excavating the widened section on one side the cutter head. When the widened section is not constructed on one side of the main body section of the tunnel, the small-diameter cutter head is moved downward by rolling the shield machine and, at the same time, the widened section excavated by means of the small-diameter cutter head is filled up with a space stuffing material. When the widened section is constructed on one side of the main body section in a communicative state, the small-diameter cutter head is moved to the side section side of the main body section of the tunnel.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种构造加宽隧道的方法，通过在隧道的主体部分的一侧上可以有效地构造具有规定范围的加宽部分，同时对挖掘进行同时施加对周围地面的不良影响的隧道主体部分。解决方案：隧道的主体部分和加宽部分通过设置有用于挖掘主体部分的切割头的盾构机和隧道的全长同时挖掘，用于挖掘加宽的切割头一侧。当加宽部分不构造在隧道主体部分的一侧时，通过滚动屏蔽机器，小直径刀头向下移动，同时，通过小直径刀头挖掘的加宽部分，直径的刀头填充有空间填充材料。当加宽部分在主体部分的一侧构造成交流状态时，小直径刀头移动到隧道主体部分的侧部侧。

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