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    • 9. 发明公开
    • PILING CONSTRUCTION MANAGEMENT METHOD
    • 桩基施工管理方法
    • EP3263773A1
    • 2018-01-03
    • EP16878210.0
    • 2016-11-16
    • Oak Co., Ltd.
    • KASHIMOTO, Takahiko
    • E02D1/02
    • E02D1/022E02D1/02E02D5/24E02D5/34E02D7/10E02D13/06G01L5/0052
    • Provided is a piling construction management method that allows elimination of the effort of redoing piling construction because of insufficient support force by very easily and reliably determining whether the support force of a piling hole is sufficient for the distal end of a piling when erecting piling in a piling hole. The support strength of a hole bottom Hb2 is measured with a penetration testing device M1 before erecting a piling in a piling hole H1. The piling is erected in the piling hole H1 when the measurement is at or above a prescribed value, whereas the piling hole H1 is dug again and the support strength of the hole bottom Hb2 after being dug again is measured with the penetration testing device M1 in the same manner when the measurement is less than the prescribed value. A piling with a length corresponding to the piling hole H2 after being dug again is erected when the measurement is equal to or greater than the prescribed value. The penetration testing device M1: is one in which a knocking block51 on which a penetration shaft 4 is integrated is struck by a drive hammer 52 in free-fall; comprises a lifting mechanism 8 that lifts the drive hammer 52 after falling to a prescribed height and releases same; and determines the support strength from the number of impacts required for the penetration shaft 4 to penetrate to a prescribed depth from the hole bottom Hb1.
    • 本发明提供一种打桩施工管理方法,该打桩施工管理方法能够非常简单且可靠地判断在竖立打桩时桩桩的顶端是否足够用于打桩的桩的支撑力,从而能够消除由于支撑力不足而导致打桩施工的重复工作 打桩孔。 孔堆底部Hb2的支撑强度在堆积在堆积孔H1中之前用渗透测试装置M1测量。 在测定值为规定值以上时,将堆积物竖立在堆积孔H1中,并且再次挖出堆积孔H1,再次利用穿透检查装置M1测定挖掘后的孔底Hb2的支承强度 当测量值小于规定值时也是如此。 当测量等于或大于规定值时,在再次挖掘之后堆叠与堆叠孔H2相对应的长度的堆叠。 贯穿检查装置M1是将贯通轴4一体化的敲落块51自由下落的状态下通过驱动锤52敲击的贯穿检查装置, 具备升降机构8,该升降机构8在使驱动锤52下降到规定高度后将其抬起并释放; 并根据穿透轴4从孔底Hb1穿透到规定深度所需的冲击次数来确定支撑强度。