Title:
SYSTEM AND METHOD FOR MONITORING SEEPAGE RATE AND MOISTURE CONTENT OF ROCK-SOIL BODY BASED ON IHAT-FBG
Document Type and Number:
WIPO Patent Application WO/2018/192344
Kind Code:
A1
Abstract:
The present invention falls within the field of geological disaster prevention. Provided are a system and method for monitoring the seepage rate and moisture content of a rock-soil body based on an IHAT-FBG. The system comprises a power supply, a power supply current control heating system, an IHAT-FBG, an FBG demodulation device and a data analysis and processing system which are connected in sequence. The method comprises the steps of: packaging an alundum tube into an IHAT-FBG, and burying same into a rock-soil body after calibration; actively heating the FBG by means of an internal heating technology, and using an FBG demodulation device to record a wavelength change; and using data processing and analysis software to calculate a temperature characteristic value of the FBG, and substituting the temperature characteristic value into a linear function: ΔTt = a - bv and w = kΔTt + c determined by means of calibration experiments, so as to calculate the seepage rate and moisture content of the rock-soil body. By means of serially connecting an IHAT-FBG according to actual requirements, the present invention achieves a quasi-distributed monitoring effect, can perform accurate-point monitoring and range monitoring, and has the advantages of simple manufacturing, convenient usage, low costs, high monitoring precision and stability, etc.
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Inventors:
SHI BIN (CN)
WEI GUANGQING (CN)
DUAN CHAOZHE (CN)
SUN XIN (CN)
MEI SHIJIA (CN)
MIAO PENGYONG (CN)
ZHANG DAN (CN)
ZHU HONGHU (CN)
TANG CHAOSHENG (CN)
GU KAI (CN)
LIU CHUN (CN)
WEI GUANGQING (CN)
DUAN CHAOZHE (CN)
SUN XIN (CN)
MEI SHIJIA (CN)
MIAO PENGYONG (CN)
ZHANG DAN (CN)
ZHU HONGHU (CN)
TANG CHAOSHENG (CN)
GU KAI (CN)
LIU CHUN (CN)
Application Number:
PCT/CN2018/080577
Publication Date:
October 25, 2018
Filing Date:
March 26, 2018
Export Citation:
Assignee:
SUZHOU NANZEE SENSING TECH CO LTD (CN)
UNIV NANJING (CN)
UNIV NANJING (CN)
International Classes:
G01N21/41; G01K11/32
Domestic Patent References:
| WO2010072293A2 | 2010-07-01 |
Foreign References:
| CN107132172A | 2017-09-05 | |||
| CN103439239A | 2013-12-11 | |||
| JP2003294662A | 2003-10-15 | |||
| CN103364320A | 2013-10-23 | |||
| CN104677422A | 2015-06-03 | |||
| CN103454309A | 2013-12-18 | |||
| CN106525280A | 2017-03-22 | |||
| CN103727980A | 2014-04-16 | |||
| CN205991862U | 2017-03-01 | |||
| CN203479673U | 2014-03-12 | |||
| CN102721722A | 2012-10-10 |
Attorney, Agent or Firm:
JIANGSU SUNDY LAW FIRM (CN)
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