公开(公告)号：US11384504B2

公开(公告)日：2022-07-12

申请号：US17042612

申请日：2019-11-19

Applicant: SHANDONG UNIVERSITY

Inventor： Xinzhuang Cui ,  Qing Jin ,  Jieru Wang ,  Yilin Wang ,  Jun Li ,  Xiaoning Zhang

IPC: E02D33/00 ,  E01C19/40 ,  E01C21/00 ,  E01C23/01 ,  E02D3/068 ,  G01P15/09 ,  G01S19/01

Abstract: A method and system determines in real time the bearing capacity of a foundation tamped by a high-speed hydraulic tamper. Four wireless acceleration sensors are arranged uniformly along tamping plate edges, sensor position tamping points are determined; the soil is tamped, the plate peak acceleration slows, tends to, and reaches stabilization in a range, a relationship curve between the tamping number and plate peak acceleration is determined; different loads are applied to the foundation to obtain corresponding settlements, coordinate axes are established, points are drawn according to each test data group and sequentially connected with a smooth curve to obtain a settlement-load curve, and the curve is fitted; a tamping number and foundation bearing capacity relationship is obtained; the two relationship curves are combined to obtain a relationship curve, and the foundation bearing capacity magnitude at a certain moment during the tamping operation is determined by using the acceleration index.