Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Earthquake side slope permanent displacement calculation method

A displacement calculation and permanent technology, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve problems such as the friction coefficient of sliding surfaces, achieve accurate and fast calculations, and reduce the amount of calculations

Active Publication Date: 2021-02-23
CHENGDU UNIVERSITY OF TECHNOLOGY
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned deficiencies in the prior art, a method for calculating the permanent displacement of an earthquake slope provided by the present invention solves the problem that the friction coefficient of the sliding surface is non-constant in the calculation of the permanent displacement of the current landslide, and the co-existence of the action of the earthquake and the inertial force field of the sliding body question

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
  • Earthquake side slope permanent displacement calculation method
  • Earthquake side slope permanent displacement calculation method
  • Earthquake side slope permanent displacement calculation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0060]Such asfigure 1 As shown, the present invention provides a method of permanent displacement of seismic slope, which is as follows:

[0061]S1, build a slider model, and the slider model is grounded in the direction of the sliding direction and the vertical sliding direction, and the method is as follows:

[0062]S101, the landslide model is constructed by the slope and the slider, and the slope sliding direction and the inclined angle angle of the slider are determined according to the landslide model;

[0063]S102, through the earthquake acceleration, north-south acceleration, and vertical acceleration from the nearest earthquake station station.

[0064]S103, using the slider sliding direction, combines the east and westness and the north-south acceleration into horizontally vibration horizontally in the sliding direction, and uses the slope inclines in the slider, horizontally vibrate and vertical acceleration in the sliding direction and vertical. Sliding direction seismic.

[0065]In th...

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 an earthquake side slope permanent displacement calculation method, belongs to the technical field of earthquake side slope calculation, and an improved Newmark model is adoptedto perform mechanical analysis, select proper earthquake motion time history data, acquire sliding surface shear strength parameters through comparative analysis, and perform data processing. Contribution percentages of different factors such as a sliding surface mechanical parameter, an inertial reference system and vertical seismic oscillation to the permanent displacement of the slope and a friction coefficient dynamic equation determined by different water content conditions of a slope body soft zone are considered to jointly establish an acceleration function of the slope along the downward inclination direction of the sliding surface; and the acceleration is subjected to quadratic integration in the whole gliding process time domain to obtain the permanent displacement, so that thecalculation of the slope displacement is more accurate and faster, and a foundation is laid for establishing a permanent displacement prediction model to carry out regional risk quantitative evaluation in slope engineering.

Description

Technical field[0001]The invention belongs to the technical field of seismic slope calculation, and particularly relates to a method for calculating the permanent displacement of a seismic slope.Background technique[0002]Landslides are one of the most important disasters in mountainous areas with strong tectonic activity. At present, research has also begun on the initiation of landslides. Studies have shown that the transfer coefficient method can be used to calculate the safety factor of the slope to evaluate the stability of the slope. The mechanical balance analyzes the stability of the slope, and the landslide permanent displacement can be obtained by quadratic integration of the time based on the critical acceleration when the slope is sliding down. The permanent displacement of the landslide can be used as a quantitative criterion for landslide instability. The disadvantage is that in the previous permanent displacement calculation process, the inertia of the sliding body and...

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
IPC IPC(8): G06F30/20G06F119/14
CPCG06F30/20G06F2119/14
Inventor 崔圣华杨晴雯裴向军雷津何宇航
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com