The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2026
Filed:
Jan. 19, 2026
Institute of Mechanics, Chinese Academy of Sciences, Beijing, CN;
Zhejiang Natural Resources Group Spatial Information Co., Ltd, Hangzhou, CN;
Xinxing Zhou, Hangzhou, CN;
Xiaoyu Liu, Beijing, CN;
Fuping Wang, Hangzhou, CN;
Haiqian Yu, Hangzhou, CN;
Pengfei Weng, Hangzhou, CN;
Kai Huang, Hangzhou, CN;
INSTITUTE OF MECHANICS, CHINESE ACADEMY OF SCIENCES, Beijing, CN;
Zhejiang Natural Resources Group Spatial Information Co., Ltd, Hangzhou, CN;
Abstract
The present application relates to a single-hole multi-stage pore water pressure observation device and an installation method thereof. The single-hole multi-stage pore water pressure observation device includes: a plurality of digital piezometer probe assemblies arranged in a monitoring borehole from bottom to top, an inter-stage seepage-isolation cylinder assembly connected between two adjacent digital piezometer probe assemblies, and a watertight connector assemblies configured to connect the adjacent digital piezometer probe assemblies to the inter-stage seepage-isolation cylinder assembly, wherein each digital piezometer probe assembly includes a hollow water-permeable cylinder, a pore water pressure gauge assembly disposed in the water-permeable cylinder, a high-permeability material filled between an inner wall of the water-permeable cylinder and the pore water pressure gauge assembly, and water-permeable geotextile wrapped around the high-permeability material; and a multi-core cable is electrically connected between adjacent pore water pressure gauge assemblies.