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    • 1. 发明专利
    • Steel segment
    • 钢部分
    • JP2013130036A
    • 2013-07-04
    • JP2011281797
    • 2011-12-22
    • Hanshin Expressway Co Ltd阪神高速道路株式会社Kajima Corp鹿島建設株式会社
    • KANEHARU HIDESADASHIMURA ATSUSHINIINA TSUTOMUFUJIWARA KATSUYATAMADA KOICHIUSHIGAKI MASARUTADA YUKIOIWAZUMI TOMOKAZUARAI TAKAHIRO
    • E21D11/14
    • PROBLEM TO BE SOLVED: To absorb a compression force, in a tunnel axis direction, acting on a segment of a shield tunnel.SOLUTION: A steel segment 1 comprises main girders 2a, 2b, joint plates 3, 3, a skin plate 4, a longitudinal rib 5 and a stopper mechanism 6. The joint plate 3 connecting terminal portions of the main girders 2a, 2b with each other are divided into two joint plate members and between these members, a joint connecting plate is interposed. The skin plate 4 is divided into two skin plate members and a cover plate is disposed to cover a gap between these members. The longitudinal rib 5 connects the main girders 2a, 2b with each other between the joint plates 3, 3. One end of the stopper mechanism 6 is connected to the main girder 2a and the other end thereof has a clearance of a predetermined distance L between the other end and the main girder 2b. In the case where a compression force in a tunnel axis direction acting on the steel segment 1 is a predetermined value or more, the longitudinal rib 5 is buckled plastically to absorb the compression force. When plastic buckling of the longitudinal rib 5 is advanced and the stopper mechanism 6 is brought into contact with the main girder 2b, the stopper mechanism 6 supports the compression force.
    • 要解决的问题:在隧道轴线方向上吸收作用在屏蔽隧道的一段上的压缩力。解决方案:钢段1包括主梁2a,2b,接合板3,3,皮板4, 纵梁5和止挡机构6.将主梁2a,2b的端子部分彼此连接的接合板3分成两个接合板构件,并且在这些构件之间插入有接头连接板。 皮肤板4被分成两个皮肤板构件,并且盖板被设置成覆盖这些构件之间的间隙。 纵向肋5将主梁2a,2b彼此连接在接合板3,3之间。止动机构6的一端连接到主梁2a,另一端具有预定距离L之间的间隙 另一端和主梁2b。 在作用于钢段1的隧道轴向的压缩力为预定值以上的情况下,纵向肋5被塑性地弯曲以吸收压缩力。 当纵肋5的塑性屈曲前进并且止动机构6与主梁2b接触时,止动机构6支承压缩力。
    • 2. 发明专利
    • Fire resistant structure for backfill injection hole and method of forming fire resistant structure for backfill injection hole
    • 背衬注射孔的防火结构和形成背部注射孔的耐火结构的方法
    • JP2012177275A
    • 2012-09-13
    • JP2011041456
    • 2011-02-28
    • Kajima Corp鹿島建設株式会社
    • ASANUMA HIROHISAFURUICHI KOSUKEARAI TAKAHIROHONDA TOMOAKINAKAGAWA MASAYOSHISUZUKI YOSHINOBUIWAZUMI TOMOKAZUTAMADA KOICHI
    • E21D11/00E21D11/08E21D11/38
    • PROBLEM TO BE SOLVED: To provide a fire resistant structure for backfill injection hole in which construction is simplified, work such as check or repair is facilitated and a cut-off performance and fire resistance can surely be secured, and a method of forming the fire resistant structure for the backfill injection hole.SOLUTION: In a backfill injection hole 3 formed in a tunnel segment 1 installed along a wall surface of a natural ground 13, a check valve 19 is installed at a predetermined interval from the natural ground 13, and a space between the check valve 19 and the natural ground 13 is filled with a back filler 51. Next, at a predetermined interval in a tunnel internal vacant direction from the check valve 19, a steel cock 23 is installed which includes a lock portion corresponding to the backfill injection hole 3, a cover portion capable of closing the backfill injection hole 3 and a cock protector lock portion provided in the cover portion. Thereafter, at a tunnel internal vacant side of the cock 23, a ceramics cock protector 27 is installed which has a recess as a lock portion corresponding to the cock 23. The cock protector 27 closes a diameter-expanded portion 11b of the backfill injection hole 3 as a whole.
    • 要解决的问题:为了提供一种在简化结构的回填注入孔中的耐火结构,便于检查或修理等工作,并可以确保切断性能和耐火性,以及一种方法 形成用于回填注入孔的耐火结构。 解决方案:在沿着天然地面13的壁面安装的隧道段1中形成的回填注入孔3中,从天然地面13以预定间隔安装止回阀19,并且在支票 阀19和天然地面13填充有后填充件51.接下来,在来自止回阀19的隧道内部空置方向上以预定间隔设置有钢制旋塞23,其包括对应于回填注入孔的锁定部 3,能够关闭回填注入孔3的盖部和设置在盖部的旋塞保护器锁定部。 此后,在公鸡23的隧道内部空侧设置有陶瓷旋塞保护器27,其具有作为与旋塞23对应的锁定部的凹部。旋塞保护器27封闭回填注入孔的直径扩大部11b 3作为一个整体。 版权所有(C)2012,JPO&INPIT
    • 3. 发明专利
    • Outermost circumference cutter for hard wall and shield machine having the same
    • 具有相同功能的硬壁式外壳切割机
    • JP2003336486A
    • 2003-11-28
    • JP2002148657
    • 2002-05-23
    • Kajima CorpKawasaki Heavy Ind Ltd川崎重工業株式会社鹿島建設株式会社
    • KONDO YASUNORIMORIO SABUROTANAAMI KOICHIOKUWA SHOJIMIZOTA HISASHIISHIKAWA ZENICHIIWAZUMI TOMOKAZUKAMIO MASAHIRO
    • E21D9/087E21D9/08
    • PROBLEM TO BE SOLVED: To solve a problem of a conventional cutter for cutting a hard wall wherein, when the cutter is used for the outermost circumference of a cutter disk, vibration and noise occur in the cutter disk and a shield body due to friction produced by a contact of the outer circumference of the cutter with a cutting surface. SOLUTION: This cutter is provided in the outermost circumference part of the cutter dirk 1 turning in the front part of the shield machine and formed with prescribed height blade parts 12 and 13 in the cutting outer circumference part of the cutter disk 1. This outermost circumference cutter 8 for the hard wall is provided with a cutting tip 11 which has a vertical rake angle o formed in the turning direction of the cutter disk 1 from the blade parts 12 and 13 to the shield body side, a horizontal rake angle p formed rearward in the turning direction of the cutter disk 1, a vertical clearance angle q formed from the cutting front surface of the cutter disk 1 to the shield body side, and a horizontal clearance angle r formed rearward in the turning direction of the cutter disk 1 so as to efficiently excavate the excavation outermost circumference. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:为了解决现有的切割硬质切割刀的问题,其中当切割器用于切割盘的最外周时,在刀盘和屏蔽体中产生振动和噪声 由于切割器的外周与切割面的接触而产生的摩擦。 解决方案:该切割器设置在切割器dirk 1的最外周部分,该切割器dirk 1在屏蔽机器的前部转动,并且在切割刀盘1的切割外周部分中形成有规定高度的刀片部分12和13。 用于硬壁的最外周切割器8设置有切割刀片11,切削刀片11具有从刀片部分12和13到屏蔽体侧在刀盘1的转动方向上形成的垂直前角o,水平前角 p在切割盘1的转动方向上向后形成从切割盘1的切割前表面到屏蔽体侧形成的垂直间隙角q和在切割器的转动方向上向后形成的水平间隙角r 盘1,以便有效地挖掘挖掘最外周。 版权所有(C)2004,JPO