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Simulation experiment device and method for impact of landslide surges on piers

A technology for simulating experimental devices and bridge piers, applied in measuring devices, impact tests, testing of machine/structural components, etc., can solve problems such as bridge piers damage, few bridge piers, overturning, etc.

Active Publication Date: 2019-12-17
CHONGQING JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There have been many studies on the effects of landslide surges on buildings, but there are very few studies on landslide surges on bridge piers. Once a landslide occurs, the huge surges may cause serious damage to bridge piers, resulting in overturning, erosion, etc. adverse consequences

Method used

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  • Simulation experiment device and method for impact of landslide surges on piers
  • Simulation experiment device and method for impact of landslide surges on piers
  • Simulation experiment device and method for impact of landslide surges on piers

Examples

Experimental program
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Effect test

Embodiment 1

[0048] This embodiment discloses an experimental device for simulating the impact of a landslide surge on a bridge pier, including a water tank 1 , a bridge pier 2 , a chute 3 , a side bridge 4 , a pressure sensor 8 and a wave height sensor 9 .

[0049] see figure 1 , the water tank 1 is a horizontally placed rectangular tank, and bank slopes 101 are provided on both side walls of the rectangular tank along its length direction. Piers 2 are fixed on the two bank slopes 101 , and the line connecting the upper ends of the two piers 2 is perpendicular to the length direction of the tank 1 .

[0050] see image 3 , in order to ensure measurement accuracy and facilitate the installation of instruments, a number of measuring holes are drilled on the side of the pier 2 facing the chute (3) with a hole cutting machine, and a measuring hole is arranged every 3cm from the bottom of the pier to the top of the pier, and the measurement The hole diameter is 2cm. The caliber of several p...

Embodiment 2

[0060] This embodiment discloses a method for simulating the impact of landslide surges on bridge piers, based on the experimental device described in Embodiment 1, comprising the following steps:

[0061] 1) Complete the installation of the landslide surge impact simulation experiment device on the pier.

[0062] 2) Put an appropriate amount of water into the water tank 1, and place the slider on the inclined slide plate 304.

[0063] 3) Detect the operating status of each instrument to ensure that all instruments are operating normally.

[0064] 4) Turn on the high-speed camera, pressure sensor 8 and wave height sensor 9 .

[0065] 5) The slider falls into the water from the slide plate 304 , causing a surge, which propagates on the water surface and hits the pier 2 .

[0066] 6) The high-speed camera completes video data collection. The pressure sensor 8 completes the pressure data collection, and sends the collected data to the multi-function signal collector 5 , and th...

Embodiment 3

[0070] This embodiment discloses a method for simulating the impact of landslide surges on bridge piers, based on the experimental device described in Embodiment 1, comprising the following steps:

[0071] 1) Complete the installation of the landslide surge impact simulation experiment device on the pier.

[0072] 2) Put an appropriate amount of water into the water tank 1, and place the slider on the inclined slide plate 304.

[0073] 3) Detect the operating status of each instrument to ensure that all instruments are operating normally.

[0074] 4) Turn on the high-speed camera, pressure sensor 8 and wave height sensor 9 .

[0075] 5) The slider falls into the water from the slide plate 304 , causing a surge, which propagates on the water surface and hits the pier 2 .

[0076] 6) The high-speed camera completes video data collection. The pressure sensor 8 completes the pressure data collection, and sends the collected data to the multi-function signal collector 5 , and th...

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Abstract

The invention discloses a simulation experiment device and a simulation experiment method for impact of landslide surges on piers. The simulation experiment device and the simulation experiment methodrelate to the technical field of pier wave pressure impact simulation experiments. The simulation experiment device for impact of landslide surges on piers comprises a water tank, piers, a sliding groove, a side bridge, a high-speed camera, pressure sensors and wave height sensors, wherein bank slopes are arranged on the inner walls of the water tank, the piers and the sliding groove are fixed onthe bank slopes, the side bridge is arranged between the piers and the sliding groove, the plurality of pressure sensors are arranged on the piers, the pressure sensors transmit acquired informationto a PC terminal by means of a multifunctional signal acquisition device, the wave height sensors and the high-speed camera are arranged on the side bridge, the wave height sensors detect the wave heights of surges, and the high-speed camera shoots the climbing of the surges on the piers and the change conditions of waves. By changing the positions of the piers, the simulation experiment device and the simulation experiment method can precisely simulate the geographical environment and distance of a landslide occurred in reality, and can simulate the similarities and differences of landslide impact pressure on the piers in various shapes in reality more flexibly.

Description

technical field [0001] The invention relates to the technical field of bridge pier wave pressure impact simulation experiments, in particular to a landslide surge wave impact simulation experiment device and method for bridge piers. Background technique [0002] Landslide surge is the main secondary hazard of reservoir bank landslides, and its wave front discontinuity makes it very destructive. When landslides and collapses lose their stability and enter the water, they will cause huge swells and generate a huge lateral flow velocity, which can not only overturn or sink ships in the water and cause casualties, but also cause damage to docks, shore marks, and renovation buildings in the reservoir area. The safety of life and property of residents on the reservoir bank and along the coast is seriously threatened, and the earth and rocks falling into the water will also block the river channel and deteriorate the water flow conditions of the channel. For the Three Gorges Reser...

Claims

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Application Information

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IPC IPC(8): G01M7/08
CPCG01M7/08
Inventor 王平义田野王梅力韩林峰李健
Owner CHONGQING JIAOTONG UNIVERSITY
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