A real-time monitoring device for river bank collapse based on pressure sensing technology

A real-time monitoring and sensing technology, which is applied to measuring devices, simultaneous measurement of multiple hydraulic valves, and fluid pressure measurement. long and other issues

Active Publication Date: 2019-09-10
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing monitoring and early warning methods of landslides, such as the stable slope ratio method and the deep water prediction method, can only make a rough estimate of whether the dangerous situation of landslides will occur, and cannot make reasonable predictions on the scale and hazards of landslid

Method used

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  • A real-time monitoring device for river bank collapse based on pressure sensing technology
  • A real-time monitoring device for river bank collapse based on pressure sensing technology
  • A real-time monitoring device for river bank collapse based on pressure sensing technology

Examples

Experimental program
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Effect test

Embodiment 1

[0148] Only lay horizontal linear pressure sensing modules, see Figure 4 :

[0149] Figure 4 Shown is the case where the bank slope is relatively steep, only the horizontal linear pressure sensing module 101 is laid; in order to weaken the infiltration water in the top 5 soil of the river bank on the horizontal linear pressure sensing module 101, the horizontal linear pressure sensing module 101 is buried The entry elevation should be chosen to be above 7° above the water surface of the river.

Embodiment 2

[0151] Lay horizontal linear pressure sensing modules and inclined linear pressure sensing modules at the same time, see figure 2 :

[0152] Figure 5 The situation shown is that the bank slope is relatively gentle, and the horizontal linear pressure sensing module 101 and the inclined linear pressure sensing module 102 are laid at the same time; The parallel bank slope 102 is obliquely buried in the soil mass of the river bank slope 6, the angle between the inclined linear pressure sensing module 102 and the vertical direction is α, and the buried depth is generally 0.1-0.5m. In laying the horizontal linear pressure sensing module 101 and the inclined linear pressure sensing module 102, the layout density ρ of two adjacent sheet pressure sensors is 0.1-5 per meter.

[0153] In Embodiment 1, in the calculation process of the bank collapse distance, since the number of sheet pressure sensors in the horizontal line pressure sensing module N≠0, m=n; since the number of sheet p...

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Abstract

The invention discloses a real-time river bank collapse monitoring device based on a pressure sensing technology. The monitoring device comprises a pressure sensing module, a central processing module, a data transmission module and a power supply module; The pressure sensing module comprises horizontal and/or inclined line type pressure induction modules for measuring the collapse depth, the central processing module can convert a pressure value transmitted by the pressure sensing module into collapse width data of water front via a preset algorithm and store the data, and the data transmission module transmits riverbank collapse distance information to a remote terminal. Density difference among the soil, water and air as well as the pressure sensing technology is used to establish relation between the water front collapse width and data of pressure measurement points, vertical to the river, buried in the riverbank, the data of the pressure measurement points is converted into the water front collapse width data which is stored in real time and sent to the remote terminal, and collapse bank is monitored in an intelligent and informational way.

Description

technical field [0001] The invention relates to a monitoring device, in particular to a real-time monitoring device for river bank collapse. Background technique [0002] Bank collapse is an important part of the river bed evolution process of alluvial rivers, and bank collapse is common in the middle and lower reaches of the Yangtze River. According to incomplete statistics, over the past 60 years, the cumulative length of bank collapses in the middle and lower reaches of the Yangtze River has exceeded 1600km. After the Three Gorges Project was put into use, a total of 698 dangerous bank collapses occurred in the main stream of the middle and lower reaches of the Yangtze River from 2003 to 2013, and the cumulative bank collapse length was about 521km. The Jingjiang section is the most serious, with a total bank collapse length of 42.3 km and an average annual collapse rate of about 15.0 m / a. Among them, Jing 98 section has a relatively high bank collapse intensity, with an...

Claims

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Application Information

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IPC IPC(8): G01L15/00G01L11/00
Inventor 夏军强孙启航邓珊珊周美蓉
Owner WUHAN UNIV
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