Pore water pressure gauge deep-layer embedded device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
- Publication Date
- 2013-07-10
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Abstract
Description
Technical field
[0001] The invention belongs to the technical field of civil engineering and relates to a pore water pressure gauge embedding device. Background technique
[0002] In soft soil foundations, pore water pressure gauges are generally buried through boreholes, and mud is used to protect the walls during the hole formation process to keep the hole walls stable. Since the hole diameter is easy to shrink after the hole is formed in the soft soil, and the mud in the hole will also generate floating force on the lowered pore pressure gauge and its signal cable, the buried quality of the pore pressure gauge has the following problems: (1) ) The signal cable with the length mark is a non-rigid scale, which sometimes misleads the embedding depth, and the pore pressure gauge may not reach the set depth. Therefore, the measured pore pressure may not necessarily be the pore at the designed depth. Water pressure; (2) The pore water pressure gauge cannot be centered in the hole, ...