公开(公告)号：US20170233968A1

公开(公告)日：2017-08-17

申请号：US15503399

申请日：2015-03-23

Applicant: SOUTHEAST UNIVERSITY

Inventor： Guojun CAI ,  Jun LIN ,  Gongqiao GENG

IPC: E02D1/02 ,  G01L23/26

CPC classification number: E02D1/027 ,  G01L23/26 ,  G01N3/34 ,  G01N33/24

Abstract: A gravity-type pore pressure dynamic penetration device for exploration of shallow-layer seabed soil includes a third drop hammer, a second drop hammer, a first drop hammer, a stable empennage, and a probe rod which are sequentially arranged from top to bottom. A sidewall friction sleeve is arranged outside a probe rod lower cylinder. A friction sleeve sensor is provided on an inner sidewall of the sidewall friction sleeve. A fast pore water pressure sensor, a conical tip pressure sensor, a temperature compensation sensor, and an inclinometer sensor are provided in the middle of the probe rod lower cylinder. A second pore water pressure sensor and an acceleration sensor are provided in the middle of a probe rod upper cylinder. The tail portion of the probe rod, that is, the upper portion of the probe rod upper cylinder is connected to the stable empennage.