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1. 发明专利

JPH07150896A SEGMENT UNIT FOR TUNNEL STRUCTURE 失效
公开(公告)号：JPH07150896A
公开(公告)日：1995-06-13
申请号：JP22069894
申请日：1994-09-14
申请人： TAISEI CORP , PENTA OCEAN CONSTRUCTION , ISHIKAWAJIMA HARIMA HEAVY IND , ISHIKAWAJIMA KENZAI KOGYO KK
发明人： KANEKO KENICHI , ISHIDA OSAMU , SUGITO TETSUYA , HARA SHUICHI , TANAKA KIYOSHI , SATO SHIN , ITO HIROYUKI , HIDA KAZUYUKI , HASHIMOTO HIROHIDE , KOBAYASHI KAZUHIRO
IPC分类号： E21D11/08
摘要： PURPOSE:To reduce costs by installing at a spot where a branch shaft is to be formed in a shaft a double-layered segment, the inner side of which is formed from a releasable steel segment and the outer side of which is formed from easily breakable concrete or the like, thereby facilitating the removal thereof. CONSTITUTION:When a branch shaft such as a vertical shaft 2 or the like is formed from within a shaft la which is excavated by a shield tunneling method and lined with arcuate segments S, an easily removable segment unit U is installed beforehand at a spot where the branch shaft is to be formed. The unit U is constituted by a double layer, wherein the inner layer 4 is comprised of a releasable steel segment and the outer layer 3 is comprised of concrete including sheath holes 5, into which PC steel materials are placed, so that the unit can sufficiently bear external pressure. And when the shaft 2 is excavated from the shaft 1a, at first the inner layer 4 is removed to draw out the PC steel materials of the outer layer 3, thereby breaking the concrete of the outer layer. As a result, the segments can be easily removed so that construction period can be shortened.

2. 发明专利

JPH0941882A DISCHARGED SEDIMENT QUANTITY ADJUSTING DEVICE FOR SHIELD MACHINE 失效
公开(公告)号：JPH0941882A
公开(公告)日：1997-02-10
申请号：JP19548795
申请日：1995-07-31
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , TAISEI CORP , PENTA OCEAN CONSTRUCTION
发明人： TATEIWA SHINGO , WAKECHIGAI TAKASHI , KANEKO KENICHI , KANEKO MICHIKAZU , SUGITO TETSUYA , HARA SHUICHI , TANAKA KIYOSHI , SATO SHIN
IPC分类号： E21D3/00 , E21D9/12
摘要： PROBLEM TO BE SOLVED: To smoothly discharge sediment by providing a cylinder regulating the position of an elastic film on a discharged sediment quantity adjusting device connected to the discharge pipe of an upward shield machine and constituted of a pinch valve having the elastic film. SOLUTION: The sediment excavated by a cutter provided at the upper end section is received by a funnel-like chamber, the sediment in the chamber is cut, segmented, dropped by the tare weight, and discharged while the paddle screw 31 in a discharge pipe 7 is rotated. When the sediment is discharged, air pressure is guided into a cylinder body 22, the elastic film 26 of the pinch valve 10 of a discharged sediment quantity adjusting device 20 is expanded or shrunk to adjust the diameter of the passage of the discharge pipe 7, and the position is mechanically held by a hydraulic cylinder 53 driven by a computer type control device 63 via a holding body 51. When the pressure in the chamber is abruptly increased, the cylinder 53 serves as a bracing rod, and the air blow of sediment or excessive sediment discharge is prevented. Sediment can be smoothly discharged.

3. 发明专利

JPH1072995A CONSTRUCTION METHOD FOR BRANCH TUNNEL AND STRUCTURE OF MAIN TRACK TUNNEL BRANCH PART 失效
公开(公告)号：JPH1072995A
公开(公告)日：1998-03-17
申请号：JP24872596
申请日：1996-08-30
申请人： TAISEI CORP
发明人： KANEKO KENICHI , SUGITO TETSUYA
IPC分类号： E21D9/06 , E21D11/14
摘要： PROBLEM TO BE SOLVED: To construct a branch tunnel economically and in a short period by driving a master-slave shield machine into a main track tunnel, and launching only a slave machine from the inside of the main track tunnel for constructing a branch tunnel. SOLUTION: A thin steel segment 31 is used in the penetration zone of a branch tunnel 2 at the intermediate position of a main track tunnel 1. The though-hole parts of the steel segment 31 are combined so as to be overhauled to suit the facing shape of a branch shield machine 21. This branch shield machine 21 is made to near the zone of a branch part structure 3. Then, the steel segment 31 at one through-hole part is overhauled and an entrance packing is fitted instead. Then, a solidifying material 32 around the branch part structure 3 is cut with the branch shield machine 21 for causing the branch tunnel 2 to penetrate. The through-hole part 33 at the other side is similarly processed. Thereafter, the surrounding natural ground of the branch part of the main track tunnel 1 and the branch tunnel 2 is filled with the solidifying material 32 from the inside of the steel segment 31.

4. 发明专利

JPH0853996A SEGMENT ASSEMBLING METHOD 失效
公开(公告)号：JPH0853996A
公开(公告)日：1996-02-27
申请号：JP20918694
申请日：1994-08-10
申请人： TAISEI CORP , MITSUBISHI HEAVY IND LTD
发明人： KANEKO KENICHI , SUGITO TETSUYA , SAKAE TAKESHI , UCHIYAMA YOSHIHIRO , MINAMI MASAFUMI
IPC分类号： E21D11/04
摘要： PURPOSE:To accurately and speedily assemble a segment group. CONSTITUTION:A segment whose plane projected shape is a trapezoid and a segment whose plane projected shape is a parallelogram are used. A single trapezoidal segment s1 and a single parallelogram segment are combined with each other, and a trapezoidal unit is constituted, and two parallelogram segments s2 are combined with each other, and a parallelogram unit u3 is constituted. First of all, a first trapezoidal unit u1 is installed on an end surface of a completed ring. Next, a parallelogram unit u3 is installed. Lastly, a second trapezoidal unit is installed.

5. 发明专利

JPH1068289A ADVANCING METHOD FOR SPHERICAL SHIELD EXCAVATING AND ADVANCING MACHINE 失效
公开(公告)号：JPH1068289A
公开(公告)日：1998-03-10
申请号：JP24560096
申请日：1996-08-28
申请人： TAISEI CORP
发明人： KANEKO KENICHI , SUGITO TETSUYA
IPC分类号： E21D9/06
摘要： PROBLEM TO BE SOLVED: To reduce the difference in diameter between a parent machine and a child machine by arranging a short-stroke jack on the child machine, and fitting a long- stroke jack when the child machine is advanced on a spherical shield excavating and advancing machine storing the child machine in the parent machine. SOLUTION: Aspherical body 12 is rotatably arranged in a parent machine 1, a child machine 2 is arranged in it, and an outer peripheral cuter 11 is made connectable to an inner peripheral cutter 21 rotated by a rotation drive device 24. The child machine 2 is provided with a thrust receiving material 23 for reinforcement when the parent machine 1 is advanced and a short-stroke child machine jack 22 used when the child machine 2 is drawn into the spherical body 12 and the child machine Z is advanced into the ground from the spherical body 12. When the child machine 2 is advanced, the thrust receiving material 23 and the short-stroke child machine jack 22 are removed, and a child machine skin plate, a child machine ring girder section and a long-stroke child machine shield jack are fitted. The child machine 2 arranged in the spherical body 12 can be shortened in length, and the diameter Eb of the child machine 2 can be made approximate to the diameter of the parent machine 1.

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