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    • 28. 发明专利
    • PRESS-FIT HOLE JIG
    • JPH03191176A
    • 1991-08-21
    • JP33039089
    • 1989-12-20
    • TAKENAKA KOMUTEN CO
    • SHIGEMOTO YASUNORIIZUMI ITOSHISAITO TOSHIO
    • E04G21/02
    • PURPOSE:To reduce the cost of the title jig by forming the jig of a rectangular main plate which is fitted to the surface of a frame with screws, backup plate provided with a pair of weir sections, shutter, and connecting cylindrical piece. CONSTITUTION:A backup plate 17 provided with a pair of weir sections 19 and 19 and a through hole 20 is put on a rectangular main plate 16 provided with a through hole 15 for throwing in concrete and bent ribs 18 and 18 and the plates are fixed to the surface of a frame with screws. A shutter 23 equipped with an L-type handle 24 and through hole 22 is inserted into the space between the plates 16 and 17. Then a connecting cylindrical piece 26 having a fitting seat 25 is fixed to the plate 17 with screws in such a way that the end of the cylindrical section 27 of the piece 26 on the fitting seat side is enlarged 28 in diameter to a semispheric shape and a supporting seat 29 is installed to the fitting seat 25 so that the piece 26 can make oscillating motions. Therefore, the connecting cylindrical piece can be used for another purpose immediately after placing concrete and the cost can be reduced.
    • 30. 发明专利
    • High-water/cement ratio type pile head treatment work
    • 高水/水泥比类型头部治疗工作
    • JPS62117914A
    • 1987-05-29
    • JP25595885
    • 1985-11-15
    • Sanwa Kizai Co LtdTakenaka Komuten Co Ltd
    • AIDA JUNROKONDO HIROHISATAGUCHI IWAOFURUKAWA YUKITAKASAITO TOSHIOSUGIBAYASHI YASUOYAMADA HIROMICHITOFUJI TAKAYOSHISAKUTA SHOJIURANO TOSHIHARUYAMAMOTO TOKUO
    • C04B24/24E02D5/34
    • PURPOSE: To make the chipping operation of pile head easier as well as reduce the occurrence of noise and vibration by a method in which an aqueous solution of a viscous high molecular compound is added to and mixed with the extra- banking portion of the heat of a concrete pile to lower the setting property of concrete in the extra-banking portion.
      CONSTITUTION: Concrete 1 for in-situ pile is placed, and then water mixed with a viscous high molecular compound is injected into the concrete 1. The amount of the high molecular compound to be added is controlled to 0.1W5.0% of the weight of water. When they are mixed while turning a propeller-shaped mixer 2, the concrete 1a of the extra-banking portion becomes of much lower strength. The pile head treating operation is ended by partly using a motor driven pick. The needs for breaker or compressor can thus be eliminated, and the total cost for treating the pile head can be greatly curtailed.
      COPYRIGHT: (C)1987,JPO&Japio
    • 目的:通过将粘性高分子化合物的水溶液加入并与其混合的方法,使桩头的切屑操作更容易,并减少噪声和振动的发生, 一个混凝土桩,以降低外部部分混凝土的固化性能。 构成:放置原位桩的混凝土1,然后将混合有粘性高分子化合物的水注入混凝土1.待加入的高分子化合物的量控制在重量的0.1-5.0% 水。 当旋转螺旋桨式混合器2时混合,混合物的外部部分的混凝土1a的强度要低得多。 桩头处理操作通过部分地使用电动机驱动的接头而结束。 因此可以消除对破碎机或压缩机的需求,可以大大减少处理桩头的总成本。