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    • 15. 发明专利
    • PENETRATION-TYPE WATER INTAKE METHOD
    • JP2000186351A
    • 2000-07-04
    • JP36536398
    • 1998-12-22
    • KUMAGAI GUMI CO LTD
    • MORI YASUO
    • E03B3/04B01D35/02C02F1/00
    • PROBLEM TO BE SOLVED: To enable the efficient intake of penetrated water from a filter layer at the time of taking water in from an intake tower embedded in the filter layer constructed in a water bottom. SOLUTION: A water blocking surface 4 to block water is formed in a water bottom 2. An intake tower 10 to be embedded in a filter layer A in which filter mediums such as coarse gravel 5, fine gravel 6, coarse sands 7 are sequentially circumferentially accumulated is erected on the water blocking surface 4. In this case, the intake tower 10 is provided with both an opening part 11 to take penetrated water from the filter layer A at the lower end part and a water guiding pipe 19 to connect the intake tower 10 to a well 17 arranged on the ground 16 at the upper end part. The well 17 is constructed more deeply than the water bottom 2, and water is taken in through the use of the water head difference H between the water level 12 over the water bottom 2 and the water level 18 of the well 17.
    • 19. 发明专利
    • Striking device for hammering inspection of concrete
    • 用于检查混凝土的冲击装置
    • JP2005201676A
    • 2005-07-28
    • JP2004005681
    • 2004-01-13
    • Kumagai Gumi Co Ltd株式会社熊谷組
    • IWAI TAKAYUKIMORI YASUOTOKIOKA MASATAKE
    • G01N29/12G01M7/08
    • PROBLEM TO BE SOLVED: To provide a small-sized light-weight striking device for a hammering inspection having a small operating sound.
      SOLUTION: A solenoid 2 is mounted on a frame 3, and a hammer shaft 5 equipped with a hammer head 6 is slidably mounted. A cylinder-shaped spring holder 11 is connected to the actuator shaft 10 of the solenoid, and the hammer shaft is coupled with a stopper 13 stored in the spring holder. The stopper is energized backward by a compression coil spring 15 in the spring holder, and the hammer shaft is held at a contraction position. When the solenoid is driven, the hammer shaft and the hammer head advance together with the actuator shaft, and after a moving core and the actuator shaft has reached the advance end, the hammer shaft and the hammer head advance furthermore; while compressing the compression coil spring, collide with an inspection object, generate a hammering sound, and returns to the initial position by a repulsive force at collision.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种用于具有小操作声音的锤击检查的小型轻量打击装置。

      解决方案:螺线管2安装在框架3上,并且装有锤头6的锤轴5可滑动地安装。 圆筒形的弹簧保持器11连接到螺线管的致动器轴10,并且锤轴与存储在弹簧保持器中的止动件13联接。 止动器通过弹簧保持器中的压缩螺旋弹簧15向后通电,并且锤轴保持在收缩位置。 当螺线管被驱动时,锤轴和锤头与致动器轴一起前进,并且在移动的铁芯和致动器轴已经到达前端之后,锤轴和锤头进一步前进; 同时压缩压缩螺旋弹簧与检查对象碰撞,产生锤击声,并在碰撞时通过排斥力返回初始位置。 版权所有(C)2005,JPO&NCIPI

    • 20. 发明专利
    • PREVENTING METHOD FOR COLLAPSE OF NATURAL GROUND
    • JPH11229367A
    • 1999-08-24
    • JP2882198
    • 1998-02-10
    • KUMAGAI GUMI CO LTD
    • ARIOKA MASAKIMORI KIYONARIMORI YASUO
    • E02D3/12E02D17/20
    • PROBLEM TO BE SOLVED: To prevent the collapse of natural ground by coupling the area forecasted to collapse with a stable area. SOLUTION: In a step 101, the area forecasted to collapse is determined through subsoil exploration, and in a step 102, a hole for negative pressure is bored in a stable are around the area forecasted to collapse. In a step 103, a chemical tank is installed on the surface of the ground, and in a step 104 the state of negative pressure is made by a vacuum pump inside of a hole for negative pressure to generate a penetrating floe of underground water from the surface of the ground toward the hole for negative pressure. In a step 105, a chemical is sprinkled over the surface of the ground from the chemical tank to allow the chemical to be guided from the surface of the ground toward a crack by the penetrating flow of underground, and in a step 106, once the chemical has reached the hole for negative pressure, one should wait for the chemical to cure. After the chemical has cured, the hole for negative pressure is not backfilled but utilized as a underground water draining hole to properly drain underground water in and around the area forecasted to collapse, thus preventing the area forecasted to collapse from becoming unstable because of repeated wetting and drying.