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    • 40. 发明专利
    • Method of pulling-out concrete column for landslide protection wall
    • 拉出防护墙的混凝土柱的方法
    • JPS6160923A
    • 1986-03-28
    • JP18357384
    • 1984-08-31
    • Takenaka Komuten Co Ltd
    • IMAI TAKAYOSHITAKAHASHI MASAAKI
    • E02D9/02
    • E02D9/02
    • PURPOSE:To facilitate removal of the adhesion of a core and to reduce the size of a pull-off reaction force stand, by a method wherein the core having a bottom part, to which a substance excellent in compression properties is added, is inserted to build a landslide protection wall made of concrete, and hammering is applied on the top part of the core when the core is pulled out. CONSTITUTION:A laminar foamed styrole 5 is stuck to the lower edge of an H-steel by means of a sensitive adhesive tape 6, and a bentonite solution is coated to a peripheral surface 3a to form a core 3. After an excavated vertical shaft 2 is filled with concrete, the core 3 is inserted into uncured concrete to build a landslide protection wall. When the core 3 is pulled out for reuse of the H-steel, a hammering force is exerted by dropping a monkey on the top part of the core 3, the lower end of the H-steel is thrusted into the foamed styrole plate 5 to release concrete and the H-steel from adhesion therebetween. Thereafter, a reaction force stand is placed to raise the core 3 with the aid of a hydraulic jack, and this facilitates pull-out of the concrete column.
    • 目的:为了便于去除芯的粘合力并减小拉脱反作用力台的尺寸,通过将具有底部的芯体,将具有优异的压缩特性的物质插入其中的方法被插入到 建立由混凝土制成的滑坡防护墙,当芯拔出时,锤击应用在核心的顶部。 构成:通过敏感胶带6将层状发泡苯乙烯5粘附到H钢的下边缘,并且将膨润土溶液涂覆到周面3a以形成芯3。在挖掘的垂直轴2 充满混凝土,将核心3插入未固化混凝土,建成滑坡防护墙。 当将芯3拉出以重新使用H钢时,通过将猴子放在芯部3的顶部上来施加锤击力,H钢的下端被推入发泡苯乙烯板5至 释放混凝土和H钢之间的粘合。 此后,借助于液压千斤顶放置反作用支架来升高芯3,这有助于抽出混凝土柱。