In-situ test system and method for subgrade dynamic resilient modulus

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United States of America Patent

PATENT NO 11913186
APP PUB NO 20220298737A1
SERIAL NO

17617451

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Abstract

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A loading module includes a test vehicle, a servo cylinder is mounted on the test vehicle, a piston rod of the servo cylinder is connected with a bearing plate acting on a subgrade surface, an annular loading plate is disposed around the bearing plate, and the loading plate is connected, through a force transmission rod, with a bearing tray on which a counterweight block is placed; a data collecting module includes a second high precision displacement sensor and a plurality of first high precision displacement sensors; a data processing module includes a computer, the computer is connected with a signal input end of the servo cylinder, an output end of the first high precision displacement sensor and an output end of the second high precision displacement sensor respectively, and performs inverse calculation for a dynamic resilient modulus value of a subgrade using a software.

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Patent Owner(s)

Patent OwnerAddress
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGYNO 960 SECTION 2 WANJIALI SOUTH ROAD TIANXIN DISTRICT CHANGSHA CITY HUNAN PROVINCE CHANGSHA CITY HUNAN PROVINCE 410000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Peng, Junhui Changsha, CN 1 0
Zhang, Junhui Changsha, CN 31 151
Zheng, Jianlong Changsha, CN 4 0

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