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    • 2. 发明专利
    • Construction method of cast-in-place pile and manufacturing method of cast-in-place pile
    • 铸造桩的构造方法和铸造桩的制造方法
    • JP2013194374A
    • 2013-09-30
    • JP2012060261
    • 2012-03-16
    • East Japan Railway Co東日本旅客鉄道株式会社
    • TAKASAKI HIDEAKIWADA AKIHIROISHIBASHI TADAYOSHIWATANABE YASUOFUJIWARA TORASHIROIKEMOTO HIROFUMI
    • E02D5/34
    • PROBLEM TO BE SOLVED: To sufficiently obtain effects of strengthening a supporting force of a pile distal end portion foundation or reducing a pile subsiding amount while suppressing cost.SOLUTION: When cement milk to be injected is switched to non-permeable cement milk after filling an injection hose 21, a bag body 20 and a discharge hose 22 with permeable cement milk, in the case where the bag body 20 is broken and the cement milk is leaked to the outside, meshes of an ambient ground Gb is clogged with a particle size adjustment member contained in the non-permeable cement milk. Thus, the permeation of the cement milk into the ambient ground Gb is suppressed. As a result, while suppressing consumption of the cement milk, effects of strengthening a supporting force of the ambient ground Gb in the distal end portion of a foundation pipe or reducing a subsiding amount of the foundation pile can be obtained at a low cost.
    • 要解决的问题:为了充分获得增强桩前端基础的支撑力的效果,或者抑制成本,减少桩的下沉量。解决方案:当填充后的水泥乳被切换为不渗透的水泥浆时 注射软管21,袋体20和具有可渗透水泥浆的排出软管22,在袋体20破裂并且水泥乳泄漏到外部的情况下,环境地面Gb的网格被粒径堵塞 包含在不透水泥浆中的调节构件。 因此,水泥乳进入环境地面Gb的渗透被抑制。 结果,在抑制水泥浆的消耗的同时,可以以低成本获得增强基础管的前端部中的环境地面Gb的支撑力或降低基础桩的下沉量的效果。
    • 3. 发明专利
    • Construction method for cast-in-place pile
    • 建筑施工方法
    • JP2005042420A
    • 2005-02-17
    • JP2003278107
    • 2003-07-23
    • East Japan Railway Co東日本旅客鉄道株式会社
    • TANIGUCHI YOSHINORITAKIZAWA SATOSHIWATANABE YASUOKIDO MOTOKO
    • E02D5/34E02D3/10
    • PROBLEM TO BE SOLVED: To suppress liquefaction by suppressing a rise in excess pore water pressure or increasing a ground density, in terms of a cast-in-place pile. SOLUTION: The cast-in-place pile 26 is constructed in the ground, and a permeable layer or a swelling layer 24 is formed along a circumferential surface of the pile. The permeable layer 24 is constructed by charging a highly permeable material 23 such as porous concrete and crushed stone. The swelling layer 24 is constructed by charging a material 23 which is expanded by absorption of water into lime etc. A seepage control material 22 for separation from the permeable layer or the swelling layer 24 is preinstalled before the placing of concrete for the cast-in-place pile. In this way, when the permeable layer 24 is formed along the circumferential surface of the pile 26, an increase in the excess pore water pressure can be suppressed for the suppression of the liquefaction because excess pore water generated by a seismic ground motion can escape into the permeable layer 24 of the circumferential surface of the pile. Additionally, when the swelling layer 24 is formed, the ground density can be increased for the suppression of the liquefaction because the swelling layer 24 swells by virtue of the inflow of groundwater into the swelling layer 24 of the circumferential surface of the pile. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:就浇注桩而言,通过抑制过量孔隙水压力的上升或增加地面密度来抑制液化。 解决方案:现浇桩26构造在地面上,并且沿着桩的圆周表面形成可渗透层或膨胀层24。 可渗透层24是通过加入诸如多孔混凝土和碎石的高渗透性材料23构成的​​。 膨胀层24通过将通过吸收水膨胀的材料23装入石灰等构成。在将用于铸造的混凝土放置之前,预先安装用于与可渗透层或膨胀层24分离的防渗材料22 地桩。 以这种方式,当沿着桩26的圆周表面形成可渗透层24时,由于地震运动产生的多余的孔隙水可以逃逸,可以抑制超孔隙水压的增加以抑制液化 桩的圆周表面的可渗透层24。 此外,当形成膨胀层24时,由于溶解层24由于地下水流入桩的周向表面的膨胀层24而膨胀,所以可以增加地面密度以抑制液化。 版权所有(C)2005,JPO&NCIPI
    • 6. 发明专利
    • Excavation method
    • 挖掘方法
    • JP2007120120A
    • 2007-05-17
    • JP2005313047
    • 2005-10-27
    • East Japan Railway Co東日本旅客鉄道株式会社
    • HOSHINO TADASHINOZAWA SHINICHIROWATANABE AKIYUKIGENJUN TAKASHIMATSUURA KAZUYAWATANABE YASUOSAITO TAKASHIFUJIWARA TORASHIRO
    • E21B7/00
    • PROBLEM TO BE SOLVED: To provide an excavation method which enables the accumulation of a mud cake and slime to be reduced without a decrease in excavation efficiency, in a normal circulation method.
      SOLUTION: Excavation equipment 10 comprises a boring machine 12 and a grout pump 16. Slurry, which is supplied from the grout pump 16, is introduced into the rod pipe 22 of the boring machine 12. A cutter head 24 is provided at the lower end of the rod pipe 22, and an excavation hole H is excavated. The slurry introduced into the rod pipe 22 is supplied into the excavated hole H from a lower end opening of the rod pipe 22. The grout pump 16 supplies the slurry to the boring machine 12. The quantity of the slurry supplied by the grout pump 16 is 0.5-2.1 m
      3 /min, that is, 1.5-5 times as large as the quantity of the slurry supplied in a conventional normal circulation method. Thus, the accumulation of the mud cake and the slime can be reduced without the decrease of the excavation efficiency in the normal circulation method.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种挖掘方法,其能够在正常循环方法中减少泥饼和泥浆的积聚而不降低挖掘效率。 解决方案:挖掘设备10包括镗床12和灌浆泵16.从砂浆泵16供应的浆料被引入镗床12的杆管22中。刀头24设置在 杆管22的下端和挖掘孔H被挖出。 引入杆管22的浆料从杆管22的下端开口供给到挖掘孔H.浆液泵16将浆料供给到镗床12中。浆料泵16供给的浆料量 为0.5-2.1m 3 / SP / min,即以常规正常循环方式供给的浆料的量的1.5-5倍。 因此,在正常循环方式下,不会降低挖掘效率,可以减少泥饼和泥渣的积聚。 版权所有(C)2007,JPO&INPIT
    • 8. 发明专利
    • Partition device
    • 分区设备
    • JP2005256360A
    • 2005-09-22
    • JP2004067872
    • 2004-03-10
    • East Japan Railway Co東日本旅客鉄道株式会社
    • WATANABE YASUOTSUKADA TOSHIHIROMATSUOKA TAKAHIROKOSUGE MASARU
    • E04G21/32B66B7/00B66B23/00
    • PROBLEM TO BE SOLVED: To provide a partition device capable of partitioning a work space and a passage in an optional position, even when forming the passage in the height different from the work space.
      SOLUTION: This partition device is composed of a passage base 10 arranged on a floor slab 1, and a freely movable partition wall 20 for partitioning the work space 2 on the side of this passage base 10 and an upper passage 3 of the passage base 10. The work space 2 can be expanded by reducing the work space 2 by expanding a width of the passage 3 or reducing a width of the passage 3 to the contrary, by moving the partition wall 20. Otherwise, the work space 2 and the passage 3 are integrated, and are used as the work space 2, or can be used as the passage 3.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:即使在与工作空间不同的高度形成通道的情况下,也能够提供能够将工作空间和通道分隔开的分隔装置。 解决方案:该分隔装置由布置在地板1上的通道基座10和用于分隔该通道基座10一侧的工作空间2的可自由移动的分隔壁20和 通过使分隔壁20移动,可以通过扩大通道3的宽度或减小通道3的宽度来减小工作空间2而扩大工作空间2.否则,工作空间2 并且通道3被整合,并且被用作工作空间2,或者可以用作通道3.版权所有(C)2005,JPO&NCIPI