杭打設施工管理方法

Japanese Patent JP7436321

B2

To provide a pile-driving construction management method enabling more reliable recognition whether or not a pile driven into a ground using a vibratory hammer has reached a bearing layer.SOLUTION: A pile-driving construction management method comprises: a step in which N value measurement of a ground G and a preliminary test to drive pile 1 to the ground G using a vibratory hammer 2 are performed beforehand to acquire correlation data between the degree of penetration resistance when the pile 1 penetrates the unpenetrated ground Ga for each vibration cycle of the vibratory hammer 2, which is calculated using measurement data strain sensor 10 and accelerometer 11 set on the pile 1 and the N value of the ground G; and a step in which a determination value is calculated using the intrusive resistance and correlation data of the target pile 1, which is calculated using the measurement data obtained by the strain sensor 10 and the accelerometer 11, which are set on a target pile 1 inserted into the ground G by the vibratory hammer 2, and it is determined whether or not the target pile 1 has reached the bearing layer S based on a comparison between a target value of the N value of penetration resistance set for the bearing layer S and the determination value.SELECTED DRAWING: Figure 1

Hiroyuki Saegusa
Hideyuki Asada
Hirofumi Taguchi

JP2020131736A

February 21, 2024

August 03, 2020

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Toa Construction Industry Co., Ltd.

E02D13/06; E02D1/02

JP11209978A
JP2016180206A
JP6346443A
JP2018062738A
JP2007139454A
JP10102493A
JP2019078012A
JP3093915A
JP2015063803A

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Masao Sakaizawa

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