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    • 2. 发明专利
    • Sealing structure for shaft connection portion
    • 轴连接部分的密封结构
    • JP2007046311A
    • 2007-02-22
    • JP2005231032
    • 2005-08-09
    • Atsushi KoizumiNtt Infranet Co Ltdエヌ・ティ・ティ・インフラネット株式会社淳 小泉
    • KOIZUMI ATSUSHIHONDA FUMIOFUJIHASHI KAZUHIKO
    • E21D11/38E21D9/06
    • PROBLEM TO BE SOLVED: To provide a sealing structure for a shaft connection portion, which is simple, and ensures stable and positive sealing state over a long period of time in a manner being proof against vibrations of an earthquake.
      SOLUTION: According to the sealing structure, a cylindrical mounting sleeve 13 enclosing an external periphery of a tunnel end area 3a of a shield tunnel 3 is arranged on a shaft wall 7 of a shaft 1 to which the tunnel end area 3a is connected, and an annular sealing member 15 having a bag-shaped cross section, containing therein liquid 17, and elastically making contact with the external periphery of the tunnel end area 3a, is arranged inside the mounting sleeve 13. The liquid 17 contained in the sealing member 15 is always set to a predetermined inflating pressure by applying a water pressure thereto by an inflating pressure control means 31, and therefore the sealing member 15 flexibly withstands vibrations, which leads to the stable sealing state.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提供一种简单的轴连接部分的密封结构,并且以防止地震振动的方式在长时间内确保稳定和正的密封状态。 解决方案:根据密封结构,包围屏蔽通道3的隧道端部区域3a的外周的圆柱形安装套筒13布置在轴1的轴壁7上,隧道端部区域3a为 并且具有袋状截面的环状密封构件15布置在安装套筒13的内侧,该环形密封构件15容纳有液体17并且与隧道端部区域3a的外周弹性接触。 密封构件15通过由充气压力控制装置31施加水压而始终设定为预定的膨胀压力,因此密封构件15能够灵活地承受振动,这导致稳定的密封状态。 版权所有(C)2007,JPO&INPIT
    • 4. 发明专利
    • Shape retainer of segment
    • 形状保持部分
    • JP2006057452A
    • 2006-03-02
    • JP2005324867
    • 2005-11-09
    • Atsushi KoizumiMutsubishi Rubber Co LtdSato Kogyo Co LtdTokyo Metro Co Ltd佐藤工業株式会社六菱ゴム株式会社淳 小泉東京地下鉄株式会社
    • KOIZUMI ATSUSHIMURAMOTO TOSHIYUKIKUROMATSU KATSUROICHINO MICHIAKISHIMIZU YUKINORI
    • E21D11/40
    • PROBLEM TO BE SOLVED: To secure a sufficient space inside a segment, and to retain the segment immediately after assembling the segment.
      SOLUTION: Segment retaining bodies 12, 13 for freely advancing-retreating or freely expanding-contracting toward the tunnel central side are arranged in a plurality at a proper interval in the circumferential direction in a rear side position on the inside surface side of a skin plate 8 being an outer shell of a shielding machine 1. The segment retaining bodies 12, 13 are made to be a relative positional relation wherein a rear side segment retaining train 15 is located in a position close to a cutting side of the following train, when the segment retaining group arranged in the peripheral direction is made to be one train and two trains are vertically arranged in the direction of the tunnel, and the front side segment retaining body train 14 is located at a substantially center position of the front-most train segment. The segment retaining bodies 12, 13 are composed of an expandable mat 12 or a hydraulic jack 13 freely expandable-contractible by fluid such as liquid, gas, oil or the like.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了确保段内的足够的空间,并且在组装段之后立即保持段。 解决方案:用于向隧道中心侧自由前进或自由伸缩的段保持体12,13在周向上以适当的间隔在内侧表面侧的后侧位置处布置 作为屏蔽机1的外壳的表皮板8构成为保持片12,13的相对位置关系,其中后侧片段保持装置15位于接近切割侧的位置 当沿周向方向布置的段保持组被制成一列,并且两个列在隧道的方向上垂直布置时,并且前侧段保持体列14位于前侧的大致中心位置 最火车段。 节段保持体12,13由可膨胀垫12或液压千斤顶13构成,液压千斤顶13可通过诸如液体,气体,油等的流体自由地膨胀。 版权所有(C)2006,JPO&NCIPI
    • 5. 发明专利
    • Tunnel segment
    • 隧道部分
    • JP2005068805A
    • 2005-03-17
    • JP2003299926
    • 2003-08-25
    • Atsushi KoizumiKubota CorpMetro Kaihatsu KkTokyo Metro Co Ltdメトロ開発株式会社淳 小泉東京地下鉄株式会社株式会社クボタ
    • KOIZUMI ATSUSHIYAHAGI SHUICHIFUJIKI IKUOOISHI TAKASHIINOSE JIROKONNO TSUTOMUAOKI TOSHIYUKIHAMADA KANAME
    • E21D11/04
    • PROBLEM TO BE SOLVED: To provide a tunnel segment which has a strength for securing sufficient propulsive reaction while suppressing increase in the weight of the entire body and a hike in cost. SOLUTION: In formation of a tunnel wall, a number of the tunnel segments are arranged in a tunnel circumferential direction and a tunnel axial direction, and then connected to each other. Each of the tunnel segments is integrally formed of a metallic material so as to have a pair of outer main girders 1, 2 forming both tunnel axial end faces, a pair of joint plates forming both tunnel circumferential end faces, and a peripheral plate portion 5 extending between both the main girders and both the joint plates in the tunnel circumferential direction. Herein the mounting location of the peripheral plate portion on each outer main girder is set to the center of the outer main girder in a segment thickness direction or on one side of the center closer to an inner edge of the outer main girder in the segment thickness direction. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种隧道段,其具有确保足够的推进反应的强度,同时抑制全身重量的增加和成本上涨。 解决方案:在隧道壁的形成中,多个隧道段沿隧道圆周方向和隧道轴向布置,然后彼此连接。 每个隧道段由金属材料整体形成,以便具有形成两个隧道轴向端面的一对外主梁1,2,形成两个隧道周向端面的一对接头板和一个周边板部分5 在主梁和隧道周向的两个接头板之间延伸。 这里,周边板部分在每个外主梁上的安装位置被设置在外主梁的中心部分的厚度方向上,或者在中心的一侧更靠近外主梁的内边缘的段厚度 方向。 版权所有(C)2005,JPO&NCIPI
    • 8. 发明专利
    • Construction method of underground wall
    • 地下墙施工方法
    • JP2003342949A
    • 2003-12-03
    • JP2002155693
    • 2002-05-29
    • Atsushi KoizumiKumagai Gumi Co Ltd淳 小泉株式会社熊谷組
    • KOIZUMI ATSUSHIWATANABE NORIOIWANAMI MOTOIKANEDA NORIO
    • E02D5/20
    • PROBLEM TO BE SOLVED: To solve the problem that strength of placed concrete is lowered because a ground stabilizing liquid and concrete are substituted by placing concrete in muddy water according to a construction method of conventional underground walls. SOLUTION: Upper and lower open pipe-like units 4 are successively piled upward of a bottom unit 3, and water sealing coupling is performed between these unit. The units 3, 4, 4, etc., are settled in a trench by placing concrete in the pipe-like unit 4 while floating these units on the muddy water 2 (ground stabilizing liquid) filled in the trench 1 for underground wall construction, and preceding elements 5 are constructed. Prescribed intervals are spaced laterally of the preceding element, the next preceding element is constructed and so forth. Subsequent elements are constructed between the preceding elements in the same procedure as the construction procedure of the preceding element. The water sealing coupling is performed between the subsequent element and each preceding element. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:解决由于通过根据传统地下墙的施工方法将混凝土置于泥水中来代替地面稳定液体和混凝土来解决放置混凝土的强度降低的问题。 解决方案:上部和下部开放的管状单元4连续地堆叠在底部单元3的上方,并且在这些单元之间执行水封耦合。 单元3,4,4等通过将混凝土放置在管状单元4中而将其放置在填充在用于地下墙结构的沟槽1中的泥浆水2(地面稳定液体)上而沉降在沟槽中, 并构造前面的元件5。 规定的间隔在前一个元件的横向间隔开,下一个前一个元件被构造等等。 后续元素以与前一元素的构造过程相同的过程在前述元素之间构建。 在后续元件和每个前一元件之间执行水封耦合。 版权所有(C)2004,JPO