Test device and method for simulating the influence of earthquake and rainfall effects on side slope stability

A test device and stability technology, applied in the direction of soil material testing, material inspection products, etc., can solve the problems of test error, impermanence, and easy corrosion of wooden side walls, and achieve the effect of simple structure and low test cost

Pending Publication Date: 2017-09-08
HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF5 Cites 35 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the formation and occurrence of landslides is a very complex natural phenomenon due to the action of multiple factors, so it is impossible to study the failure mode and instability mechanism of the slope only by indoor conventional geotechnical experiments and in-situ experiments.
[0003] At present, there are experiments similar to the model box, but the three side walls of the model box are made of wood. When the water content of the slope model is high, the wooden side wall is easy to corrode and not durable. The two side walls of the vertical seismic wave are made of wood, which has a reflection effect on the seismic wave. , it is easy to form reflected waves, resulting in test errors, and the test device can only simulate the earthquake, and cannot realize the slope stability research under the coupled action of earthquake and rainfall

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Test device and method for simulating the influence of earthquake and rainfall effects on side slope stability
  • Test device and method for simulating the influence of earthquake and rainfall effects on side slope stability
  • Test device and method for simulating the influence of earthquake and rainfall effects on side slope stability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] combine Figure 1-4As shown, a test device for simulating the influence of earthquake and rainfall on slope stability includes artificial rainfall device 1, model box 2, shaking table 3, test monitoring system 4 and computer terminal 5, artificial rainfall device 1 includes water storage tank 1-1, pressure pump 1-2, electronic control valve 1-3, flow meter 1-4, return pipe 1-5, water inlet pipe 1-6, water supply pipe 1-7, rainfall nozzle 1-8 and water supply main pipe 1 -9, the water storage tank 1-1 is connected to the pressure pump 1-2 through the water inlet pipe 1-6, the pressure pump 1-2 is connected to the electronic control valve 1-3, the electronic control valve 1-3 is connected to the flow meter 1-4, and the flow meter 1-4 is connected to the water supply main pipe 1-9, the water supply main pipe 1-9 is connected to the water supply pipe 1-7, the water supply pipe 1-7 is connected to the rainfall sprinkler 1-8, and the water storage tank 1-1 passes through the ...

Embodiment 2

[0037] The experimental procedure that the present embodiment adopts the experimental device of embodiment 1 to draw is as follows:

[0038] Step 1: The primary problem of the model test is to determine the law of similarity, so that the physical laws of the prototype can be correctly reflected on the model. The model should be similar to the prototype and meet the requirements of the similarity theory. The law of similarity stipulates the relationship between the model and the prototype. Similar to the conditions that must be met, it also specifies the rules for extrapolating the model test data and results to the prototype. Therefore, the key to determine the similarity ratio of the shaking table model of the slope is to determine the similarity ratio of geometrical dimensions according to the effective size of the shaking table model box and the section size of the prototype slope. The main similarity constants of the model are calculated according to the geometric similari...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a test device and method for simulating the influence of earthquake and rainfall effects on side slope stability. The device comprises an artificial rainfall device, a model box, a vibration table, a test monitoring system and a computer terminal. A flow meter is connected with a water supply main tube; the water supply main tube is connected with a water supply branch tube; the lower part of the water supply branch tube is connected with a rainfall sprayer; a water storage tank is connected with an electronic control valve through a water returning pipe; the model box is located below the rainfall sprayer; the model box is fixedly connected with the vibration table. The method comprises the steps that in the test, a high-definition digital image processing technique is used to track and observe the displacement change of side slope soil body; at the same time of camera shooting in the whole process, after the earthquake and rainfall effects, positions having abnormal situations of the side slope side and the side slope surface are observed and recorded; classification and integration and analysis are conducted on the collected data to obtain a side instability mechanism under the coupling effects of earthquake and rainfall. The test device and method have the advantages of carrying out related experiments of single earthquake, single rainfall, and the coupling effects of earthquake and rainfall; being simple in structure and low in test cost.

Description

technical field [0001] The invention relates to a test device and method for simulating the influence of earthquake and rainfall on slope stability. Background technique [0002] Landslide is a common natural disaster, which has the characteristics of wide distribution, high frequency of outbreaks, and great harm. my country's mountainous area is quite vast, accounting for 2 / 3 of the total land area, and natural slopes are widespread, and with the rapid development of infrastructure, there will be more and more large-scale slope projects. In recent years, with global warming, more and more disasters such as landslides and debris flows induced by heavy rainfall and abnormal extreme weather have attracted widespread attention from scholars of geological disasters in various countries. The "China Geological Hazard Database" records the landslide disasters that occurred in my country. Among the disasters recorded, most of the landslides are induced by rainfall. At the same tim...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 韩雪周莉田松何
Owner HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap