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    • 12. 发明专利
    • Constructing method for tip-reinforcing cast-in-place pile
    • 用于提升加固桩的构造方法
    • JP2006138100A
    • 2006-06-01
    • JP2004327942
    • 2004-11-11
    • East Japan Railway Co東日本旅客鉄道株式会社
    • TANIGUCHI YOSHINORIFUJISAWA HAJIMEHOSHINO TADASHIMATSUO NOBUYUKI
    • E02D5/34
    • PROBLEM TO BE SOLVED: To provide a constructing method for a tip-reinforcing cast-in-place pile, which brings about improved construction accuracy and working efficiency, and positively reinforces the ground near the tip of the pile.
      SOLUTION: According to the method of constructing the cast-in-place pile, first a cage (2) having a steel frame (3) attached to the tip thereof is built in an excavated hole. The steel frame (3) has an injection bag (4) set on a bottom thereof. Then the steel frame is crushed by the pile bottom to expand the injection bag on the pile bottom, and a grouting material is injected in the ground with pressure, followed by pressurizing the ground in the vicinity of the pile tip. In the method, an injection pipe (20) for injecting the grouting material into the ground with pressure, and a slime discharging pipe (21), are each formed of a flexible rigid resin hose.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种尖端加固现浇桩的施工方法,其提高了施工精度和工作效率,并且有效地增强了桩顶附近的地面。 解决方案:根据现浇桩的构造方法,首先,在挖掘孔中内置有具有安装在其顶端的钢框架(3)的保持架(2)。 钢框架(3)具有设置在其底部的注射袋(4)。 然后将钢框架由桩底压碎,将桩袋底部的注射袋膨胀,并在压力下将注浆材料注入地面,然后对桩尖附近的地面加压。 在该方法中,将用于将灌浆材料注入地面的注射管(20)和压力排出管(21)分别形成为柔性刚性树脂软管。 版权所有(C)2006,JPO&NCIPI
    • 14. 发明专利
    • Reinforcing structure
    • 加固结构
    • JP2007070991A
    • 2007-03-22
    • JP2005262460
    • 2005-09-09
    • East Japan Railway Co東日本旅客鉄道株式会社
    • ISHIBASHI TADAYOSHITSUYOSHI TAKESHIWATANABE YASUOFUJIWARA TORASHIROTANIGUCHI YOSHINORITAKIZAWA SATOSHINOZAWA SHINICHIROWATANABE AKIYUKI
    • E02D27/34E01D19/02E01D22/00E02D27/32E02D31/08
    • PROBLEM TO BE SOLVED: To provide a reinforcing structure which achieves sufficient reinforcement strength and reduces costs in reinforcing a part of a pillarlike structure that is buried in the ground. SOLUTION: The reinforcing structure 20 reinforcing the pillarlike structure 10 erected on the ground 200 includes a board portion 21 placed on the ground 200 surrounding the pillarlike structure 10, and a pile portion 22 which extends from the board portion 21 and is buried in the ground 200. This reinforcing structure 20 reduces a stress of bending, shearing, etc., on the pillarlike structure 10 to reinforce an underground portion 10a of the pillarlike structure 10 with sufficient strength. The reinforcing structure 20 requires the board portion 21 and pile portion 22 only, thus enabling cost reduction. In constructing the reinforcing structure 20 on the pillarlike structure 10, the underground portion 10a of the pillarlike structure 10 is not needed to be enlarged, which allows further cost reduction. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种加强结构,其能够实现足够的加强强度并且降低加强埋在地下的柱状结构的一部分的成本。 解决方案:加强立柱在地面200上的柱状结构10的加强结构20包括设置在围绕柱状结构10的地面200上的基板部分21和从基板部分21延伸并被埋设的绒头部分22 该加强结构20减小了在柱状结构体10上的弯曲,剪切等的应力,以足够的强度加强柱状结构体10的地下部分10a。 加强结构20仅需要基板部分21和绒头部分22,从而能够降低成本。 在柱状结构体10上形成加强结构体20时,不需要扩大柱状结构体10的地下部分10a,从而进一步降低成本。 版权所有(C)2007,JPO&INPIT
    • 15. 发明专利
    • Wide-flange shape steel pile and construction method therefor
    • 宽法兰形状钢板及其构造方法
    • JP2004132111A
    • 2004-04-30
    • JP2002299818
    • 2002-10-15
    • East Japan Railway Co東日本旅客鉄道株式会社
    • ISHIBASHI TADAYOSHITANIGUCHI YOSHINORITAKIZAWA SATOSHI
    • E02D3/12E02D5/28
    • PROBLEM TO BE SOLVED: To provide a wide-flange shape steel pile and a construction method therefor, which can increase the bearing capacity of the peripheral surface of the pile in a construction method wherein injection is concurrently used.
      SOLUTION: In this wide-flange shape steel pile 1, an injection pipe 3 is preinstalled in a pile body 2; after the pile body 2 is inserted into ground G, a liquid soil-improving material 21, which is not only cured but also expanded with a lapse of time, is injected into the ground G from an opening at the lower end of the injection pipe 3 under high pressure; and the curing and expansion of the material 21 prevent the loosening of the ground G on the periphery of the pile body 2, and increase the bearing capacity.
      COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供一种宽法兰形钢桩及其施工方法,其可以在同时使用注射的施工方法中增加桩的周边表面的承载力。 解决方案:在这种宽法兰形钢桩1中,注射管3预先安装在桩体2中; 在将桩体2插入地面G之后,不仅固化而且随时间膨胀的液体土壤改善材料21从喷射管下端的开口喷射到地面G中 3在高压下; 并且材料21的固化和膨胀防止了在桩体2的周边上的地面G的松动,并且增加了承载能力。 版权所有(C)2004,JPO
    • 17. 发明专利
    • Pile hole wall protection method
    • 双孔保护方法
    • JP2012017581A
    • 2012-01-26
    • JP2010154445
    • 2010-07-07
    • East Japan Railway Co東日本旅客鉄道株式会社
    • ISHIBASHI TADAYOSHITANIGUCHI YOSHINORITAKEYA TSUTOMUIKEMOTO HIROFUMINAKAGAWA YURITAKASAKI HIDEAKIOTSUKA TAKAHITOSUZUKI HIROYUKIHOSHIKAWA TSUTOMU
    • E21D5/10E21D1/08
    • PROBLEM TO BE SOLVED: To provide a method for protecting a hole wall and boring a pile hole for a cast-in-place pile simultaneously in parallel.SOLUTION: An inventive method includes: connecting a plurality of cylindrical pipes (14) together, each of which has a diameter smaller than that of a pile hole and a length equal to or smaller than the depth of a bored part, and dropping them along a hole wall (15) simultaneously in parallel with boring the pile hole for a cast-in-place pile; and filling a back-fill material (16) in a clearance between the hole wall and the cylindrical pipes to bring the pipes into close contact with the wall. On the periphery of the tip of the lowermost cylindrical pipe, a seal material is attached, which is in contact with the hole wall when dropping the pipes and thus prevents the back-fill material from escaping.
    • 要解决的问题:提供一种同时平行地保护孔壁并对现场堆垛打桩的方法。 解决方案:本发明的方法包括:将多个圆柱形管道(14)连接在一起,每个圆柱形管道的直径小于桩孔的直径和等于或小于钻孔部分的深度的长度,以及 将其沿着孔壁(15)同时平放放置在桩上,用于现浇桩; 并在孔壁和圆柱形管之间的间隙中填充填充材料(16)以使管道与壁紧密接触。 在最下面的圆柱形管的尖端的周边上,安装密封材料,当下降管道时,密封材料与孔壁接触,从而防止后填充材料逸出。 版权所有(C)2012,JPO&INPIT
    • 18. 发明专利
    • Pile hole excavating method
    • 钻孔方法
    • JP2010090588A
    • 2010-04-22
    • JP2008260697
    • 2008-10-07
    • East Japan Railway Co東日本旅客鉄道株式会社
    • ISHIBASHI TADAYOSHIOSAKO KATSUHIKOYOSHIDA KOICHIOBA AKIRATANIGUCHI YOSHINORITAKEYA TSUTOMUIKEMOTO HIROFUMI
    • E21B3/02
    • PROBLEM TO BE SOLVED: To provide a pile hole excavating method for excavating a pile hole in a short time without needing a large-scale facility for press-fitting a pipe. SOLUTION: The pile hole excavating method for rotationally driving and lowering a rod 24 of an excavator 2 to excavate the pile hole 10 for a cast-in-place pile with a bit 25 provided at the lower end of the rod 24, is characterized by inserting a hole wall protective pipe 11 with a diameter smaller than the hole diameter of the pile hole 10 down to a predetermined depth in the pile hole 10 in association with the descent of the bit 25 in the excavator 2. In this pile hole excavating method, the excavation of the pile hole 10 and protection of a pile wall can be simultaneously executed to permit the excavation of the pile hole 10 in a short period of time. Further, the hole wall protective pipe 11 in this pile hole excavating method can be inserted into the pile hole 10 without being press-fitted because its diameter is smaller than the hole diameter of the pile hole 10. The large-scale facility for press-fitting is thereby dispensed with to miniaturize an excavating apparatus 1. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种用于在短时间内挖掘桩孔的桩孔挖掘方法,而不需要用于压配管的大型设施。 解决方案:用于旋转地驱动和降低挖掘机2的杆24以便挖出位于杆24的下端处的钻头25的现浇桩的桩孔10的桩孔挖掘方法, 其特征在于,与挖掘机2中的钻头25的下降相关联,将孔壁10的直径小于桩孔10的孔直径的孔壁保护管11插入桩孔10中的预定深度。在该桩 可以同时进行桩孔10的挖掘和桩壁的保护,以允许桩孔10在短时间内开挖。 此外,该桩孔挖掘方法中的孔壁保护管11,由于其直径比绒头孔10的孔径小,因此能够插入桩孔10中而不进行压配。另外, 因此省去了配件以使挖掘装置1小型化。版权所有(C)2010,JPO&INPIT
    • 19. 发明专利
    • Arch bridge
    • 拱桥
    • JP2005139670A
    • 2005-06-02
    • JP2003375839
    • 2003-11-05
    • East Japan Railway Co東日本旅客鉄道株式会社
    • ISHIBASHI TADAYOSHITSUYOSHI TAKESHITANIGUCHI YOSHINORIOOBA MITSUAKIKUSAKA IKUOMEJI MASAKI
    • E01D4/00E01D19/04E01D19/16
    • PROBLEM TO BE SOLVED: To provide an arch bridge which reduces the weight of a stiffening girder by decreasing a tensile force applied to the stiffening girder of the arch bridge, and which can be constructed even on low-strength ground by decreasing a horizontal force applied to a bridge pier.
      SOLUTION: This arch bridge 10 is equipped with a bridge girder 24 which is erected across a span between an abutment 11 and the bridge pier 12, and an arch member 25 for bearing a load of the bridge girder 24. A girder bearing 21 for bearing the bridge girder 24, and an arch bearing 22 for supporting the arch member 25 are independently provided on the abutment 11 and the bridge pier 12. Thus, a horizontal force, which is applied to the arch bearing 22 from the arch member 25, is not transferred to the bridge pier 24. Additionally, since a reversely directed horizontal force is applied to the arch bearing 22, which is provided on the bridge pier 12, from the two arch members 25, both the horizontal forces can offset each other, and the horizontal force, applied to the bridge girder 24 and the bridge pier 12, can be reduced.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种拱桥,其通过减小施加到拱桥的加劲梁的张力来减小加劲梁的重量,并且其可以甚至在低强度地面上通过减小 水平力施加到桥墩上。 解决方案:该拱桥10配备有桥梁梁24,该桥梁横跨桥墩11和桥墩12之间的跨度,以及用于承载桥梁梁24的载荷的拱形构件25。 21,用于承载桥梁24,并且用于支撑拱形构件25的拱形轴承22独立地设置在基台11和桥墩12上。因此,从拱形构件施加到拱形轴承22的水平力 另外,由于反向指向的水平力由两个拱形构件25施加到设置在桥墩12上的拱形轴承22上,所以两个水平力可以偏移每个 另外,可以减小施加于桥梁24和桥墩12的水平力。 版权所有(C)2005,JPO&NCIPI
    • 20. 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