会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 51. 发明专利
    • TUNNEL TIMBERING UNIT
    • JP2000034894A
    • 2000-02-02
    • JP21966298
    • 1998-07-17
    • OKUMURA CORP
    • OTSUKA KATSUJINAKAYAMA TAKAYOSHIONO JUNJI
    • E21D11/14
    • PROBLEM TO BE SOLVED: To contact-bond a rear gripper for a tunnel boring machine surely with a tunnel excavating wall surface through a collapse preventive member lined on a timbering unit while obviating the deformation of the arcuate steel material of the timbering unit regardless of the bulging and deformation of the collapse preventive member when the rear gripper is contact-bonded with a weak bedrock in the timbering unit executed on the tunnel excavating wall surface. SOLUTION: The timbering unit has a structure, in which a collapse preventive member 3 consisting of a wire gauze is lined between front-rear arcuate steel materials 1, 2 without connecting both ends in the longitudinal direction of these front-rear arcuate steel materials 1, 2 by a linear steel material. The collapse preventive member 3 is installed slidably in the longitudinal direction to one arcuate steel material at that time, and the collapse preventive member 3 is constituted so as to be bulged and deformed while being drawn near towards a rear gripper from the arcuate steel material when the rear gripper is pushed against the collapse preventive member 3.
    • 52. 发明专利
    • TUNNEL SUPPORT
    • JPH11190197A
    • 1999-07-13
    • JP35949097
    • 1997-12-26
    • OKUMURA CORP
    • NAKAYAMA TAKAYOSHIHIRAISHI ISAOONO JUNJINISHIKAWA KAZUO
    • E21D11/14
    • PROBLEM TO BE SOLVED: To easily form a ring-shaped support by preventing deformation of a collapse preventer when a reaction is taken using the rear gripper of a tunnel boring machine. SOLUTION: A piece 21 constituting a ring-shaped tunnel support is constructed of a circular frame and a collapse preventer mounted on the outer peripheral surface of the frame. The collapse preventer is formed by a first round steel 25 extending in the direction of the axis of a tunnel and a second round steel 26 located outside the first round steel 25 and extending in the circumferential direction, with the thickness of the collapse preventer decreasing in the radial direction of the tunnel. Therefore, the collapse preventer itself is not deformed even when sandwiched between the rear gripper of a tunnel boring machine and natural ground. When the piece 21 is turned during assembly, its turning end is not hooked to the top and side end faces of the tail part of the tunnel boring machine, and the piece 21 is smoothly turned so enable the ring-shaped tunnel support to be formed easily.
    • 54. 发明专利
    • METHOD OF FORMING TUNNEL TIMBERING
    • JPH11141294A
    • 1999-05-25
    • JP32045897
    • 1997-11-05
    • OKUMURA CORP
    • NAKAYAMA TAKAYOSHIONO JUNJINISHIKAWA KAZUO
    • E21D11/14E21D11/40
    • PROBLEM TO BE SOLVED: To efficiently and precisely form a timbering by bringing a minor diameter ring timbering body assembled by connecting circular rectangular forms into contact with the upper circumferential part of an excavated wall surface, connecting it to an existing timbering body in such a manner as to be slidable, and then extending the diameter. SOLUTION: A joint plate is fixed between circular longitudinal main beams laid along a tunnel excavated wall surface 2 to form a rectangular frame. A plurality of rectangular frames are connected to form a ring timbering body 3 having a diameter smaller than the excavated wall surface 2. The ring timbering body 3 is lifted to the upper circumferential part of the excavated wall surface 2, and held therein. The rear end surface of this ring timbering body 3 is connected to the front end surface of an existing ring timbering 3 already extended in diameter in such a manner as to be radially slidable. The opposed joint plates of the adjacent rectangular frames are separated by a diameter extending jack or push bolts provided on the joint plates to extend the diameter of the ring timbering body 3, and the circumferential surface is thoroughly brought into contact with the excavated wall surface 2. The main beams of ring timbering bodies 3A, 3A are also fastened and fixed by bolts and nuts.
    • 55. 发明专利
    • TUNNEL SUPPORT SELECTION METHOD
    • JPH1193598A
    • 1999-04-06
    • JP25833897
    • 1997-09-24
    • OKUMURA CORP
    • SHINOHARA SHIGERUNAKAYAMA TAKAYOSHIKAMANO HITOSHIOKAMURA JIRO
    • E21D9/10E21D11/40
    • PROBLEM TO BE SOLVED: To select appropriate supports immediately for a wall just after excavation by selecting supports to be installed at the excavated wall from among multiple kinds of supports on the basis of vibration occurring from the excavation of a tunnel excavator. SOLUTION: The coefficient of variation is computed from the vibration of an excavator with an accelerometer 5, an A/D converter 7 and a waveform processing section 8 while excavating a rock mass with a cutter head 1 and advancing the tunnel excavator. When the coefficient of variation is large, on the assumption that the rock mass has many cracks, strong supports are selected and the selected supports are installed on the excavated wall. When the coefficient of variation is small, on the assumption that the rock mass has a few cracks, no support or ring supports 21 are selected and the selected supports 21 are installed at the excavated wall except when no supports are used. Therefore, appropriate supports can be selected quickly without confirming the wall after excavation visually.