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    • 4. 发明公开
    • 섬유보강 피씨 침목
    • 纤维增强预应力混凝土垫圈
    • KR1020090066165A
    • 2009-06-23
    • KR1020070133797
    • 2007-12-18
    • 극동엔지니어링(주)
    • 박성수박근태김성곤윤영수오순택박종면
    • E01B3/44E01B3/00
    • E01B3/44E01B3/34E01B19/003
    • A fiber reinforced prestressed concrete sleeper is provided to improve adhesive force of concrete by combining a coil spring in the outer circumference of a burying unit. A fiber reinforced prestressed concrete sleeper is composed of a body(10) made of fiber reinforced prestressed concrete, an upper honeycomb core(22) inserted in the upper part of the body, a lower honeycomb core(24) inserted in the lower part of the body, a burying unit(30) buried in the body, and a coil spring combined in the outer circumference of the burying unit. The upper honeycomb core is inserted in the position in which a rail is installed, and a combining bolt is inserted into the burying unit.
    • 提供一种纤维增强预应力混凝土轨枕,用于通过在埋设单元的外圆周组合螺旋弹簧来改善混凝土的粘合力。 纤维增强预应力混凝土轨枕由纤维增强预应力混凝土制成的本体(10),插入主体上部的上部蜂巢芯(22),下部蜂窝芯(24) 身体,埋在身体中的埋藏单元(30)和组合在埋藏单元的外周的螺旋弹簧。 将上部蜂巢芯插入到安装导轨的位置,并将合并螺栓插入埋设单元中。
    • 5. 发明授权
    • 지중 추진관용 매입식 분사 노즐
    • 用于地下推进管的内置喷嘴
    • KR100959342B1
    • 2010-05-20
    • KR1020100012011
    • 2010-02-09
    • 극동엔지니어링(주)
    • 박근태곽창진신창섭
    • E21D9/06
    • PURPOSE: A built-in injection nozzle for an underground propulsion pipe is provided to reduce the propulsion resistance during the construction of a propulsion pipe and to prevent damage to the nozzle and the related devices. CONSTITUTION: A built-in injection nozzle for an underground propulsion pipe comprises a reciprocating nozzle(20), an upper housing(30), a spring(40), a support pipe(50) and a lower housing(60). The reciprocating nozzle has spout holes(22) on the perimeter. The upper housing accommodates the reciprocating nozzle. When a filler(12) is forced to be provided, the reciprocating nozzle is partly exposed so that the filler is spouted to the surrounding ground. When the pressure to the filler is removed, the reciprocating nozzle is returned into the upper housing by the elastic force of the spring.
    • 目的:提供用于地下推进管道的内置注射喷嘴,以在推进管道施工期间减少推进阻力,并防止损坏喷嘴及相关设备。 构成:用于地下推进管的内置注射喷嘴包括往复喷嘴(20),上壳体(30),弹簧(40),支撑管(50)和下壳体(60)。 往复式喷嘴在周边具有出口孔(22)。 上壳体容纳往复式喷嘴。 当迫使填料(12)被提供时,往复式喷嘴部分露出,使得填料喷射到周围地面。 当去除填料的压力时,往复喷嘴通过弹簧的弹力返回上部壳体。
    • 6. 发明公开
    • 노후관 교체를 위한 강관의 압입장치
    • 用于更换旧管的钢管压力装置和使用它的压力方法
    • KR1020080074453A
    • 2008-08-13
    • KR1020070013609
    • 2007-02-09
    • 극동엔지니어링(주)
    • 신창섭박근태곽창진
    • F16L1/024F16L1/00
    • F16L1/028F16L1/06
    • A steel pipe pressing apparatus for exchanging old pipes is provided to reduce the manufacturing processes and fuel consumption by continuously performing pipe exchanging work using a single device. A steel pipe pressing apparatus for exchanging old pipes comprises a steel pipe(10) buried in the ground, a plurality of cutting devices(20) for cutting the old pipe, a pulverizing device(30) installed at a rear portion of the cutting devices to pulverize the old pipe, and a movable support unit(40). The steel pipe has a diameter larger than that of the old pipe to be exchanged. The cutting device cuts the old pipe lengthwise along the old pipe. The movable support unit is installed in a lower inner peripheral portion of the steel pipe and makes contact with an outer surface of the old pipe.
    • 提供一种用于更换旧管的钢管加压装置,通过使用单个装置连续执行管道更换工作来减少制造过程和燃料消耗。 用于更换旧管的钢管加压装置包括埋在地下的钢管(10),用于切割旧管的多个切割装置(20),安装在切割装置的后部的粉碎装置(30) 粉碎旧管,以及可移动支撑单元(40)。 钢管的直径大于要更换的旧管的直径。 切割装置沿着旧管道纵向切割旧管。 可移动支撑单元安装在钢管的下部内周部分中,与旧管的外表面接触。