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    • 6. 发明专利
    • Borehole water level stabilization system for cast-in-place pile
    • 井下水位稳定系统
    • JP2013060707A
    • 2013-04-04
    • JP2011198035
    • 2011-09-12
    • East Japan Railway Co東日本旅客鉄道株式会社Tekken Constr Co Ltd鉄建建設株式会社
    • ISHIBASHI TADAYOSHITANIGUCHI YOSHINORIIKEMOTO HIROFUMIWADA AKIHIROIWASE TAKASHISAITO MASAHARUTAKEDA SHIGETSUGUYAMAMURA YASUOKURISU MOTOAKITAKASHIMA HIROYUKIMACHINAGA TOSHIHIROFURUSAWA SHINJI
    • E02D5/34
    • PROBLEM TO BE SOLVED: To provide a borehole water level stabilization system for a cast-in-place pile, capable of stabilizing a water level of a stabilizer inside a pile hole even on a site where a groundwater level is high or a site where a position to drill the pile hole and an installation position of a tank are separated.SOLUTION: In a borehole water level stabilization system 1 for the cast-in-place pile including supply means 4 for supplying the stabilizer to a drilling hole H, discharge means 5 for discharging slurry from the drilling hole H together with drilled sediment, water level detection means 6 for detecting the water level of the stabilizer supplied into the pile hole H, and control means 7 for controlling them, the supply means 4 includes a stabilizer tank 40 for storing the stabilizer, a feed pump 42 for sending out the stabilizer from the stabilizer tank into the pile hole, and a supply route 44 from the stabilizer tank 40 to the inside of the pile hole H. A check valve 44b is provided near a proximal end to be a feed pump side of the supply route 44, a motor valve 44a is provided near a distal end to be the side of the pile hole H, and the stabilizer is made storable inside the supply route 44 between both valves.
    • 要解决的问题:为了提供现浇桩的钻孔水位稳定系统,即使在地下水位高的地方也能稳定桩孔内的稳定器的水位,或者 钻孔位置和罐的安装位置分开。 解决方案:在用于现浇桩的井眼水位稳定系统1中,包括用于将稳定器供应到钻孔H的供给装置4,用于从钻孔H排出浆料的排出装置5以及钻井沉积物 用于检测供给到桩孔H的稳定器的水位的水位检测单元6以及控制装置7的控制单元7,供给单元4包括用于收纳稳定器的稳定器箱40, 稳定器从稳定罐进入桩孔,以及从稳定罐40到桩孔H的内部的供给路径44.止回阀44b设置在近端附近作为供给路径的供给泵侧 如图44所示,在作为桩孔H侧的前端附近设置有马达阀44a,并且稳定器能够在两个阀之间的供给路径44的内部存储。 版权所有(C)2013,JPO&INPIT