Side slope stability prediction method under earthquake effect

Abstract

The invention discloses a side slope stability prediction method under an earthquake effect. The method comprises the following steps of 1, stability influence factor determination of a side slope to be predicted wherein 6 influence factors comprises 4 internal factors and 2 external factors; the 4 internal factors are a geological condition of the side slope to be predicted, a slope angle A, a slope height H and a fracture zone distance R; the 2 external factors are a rainfall intensity and an earthquake intensity s of an area of the side slope to be predicted; 2, side slope stability influence index assignment: carrying out assignment on 6 side slope stability influence indexes of the side slope to be predicted respectively; 3, slope stability influence integration index value calculation of the side slope to be predicted: calculating the stability influence integration index value H of the side slope to be predicted according to the 6 side slope stability influence indexes; 4, stability prediction of the side slope to be predicted. Steps of the method in the invention are simple, the design is reasonable and realization is convenient. A usage effect is good. A prediction process of side slope stability under the earthquake effect can be simply and rapidly completed and prediction precision is high.

Description

technical field [0001] The invention belongs to the technical field of slope engineering, and in particular relates to a method for predicting slope stability under earthquake action. Background technique [0002] my country has a vast territory and complex geological structure. It is a country with many mountains and earthquakes. It is also a country where landslides are widely distributed, and geological disasters are quite serious. According to statistics, tens of thousands of large and small landslides occur in my country every year. Geographic and geological conditions inevitably bring about a large number of slope problems related to earthquake action. Earthquake-induced landslides are very common in my country, especially in the mountainous areas of western and southwestern my country. Every time a major earthquake occurs, many earthquake landslides are produced. Earthquake-induced landslide disasters can not only cause loss of life and property, but also destroy life...

AI Technical Summary

Problems solved by technology

The above comprehensive index calculation formula only studies the five factors of lithology structure, slope height, slope angle, earthquake, and rainfall, and does not involve other factors affecting the slope dynamic stability, which is somewhat insufficient in accuracy

[0013] However, through the analysis of landslides in earthquake areas across the country, it is found that the occurrence of earthquake landslides is not only the result of these factors, but also has a certain relationship with the distance from the fault zone. Therefore, we should not only study lithological structures, There are five factors including slope height, slope angle, earthquake, and rainfall. It is necessary to conduct specific research on the distance from the slope to the fault zone.

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