Method for judging type of engineering soil slope landslide caused by earthquake

Abstract

The invention discloses a method for judging the type of engineering soil slope landslide caused by an earthquake. Arrangement is performed according to a GDS dynamic triaxial test result to obtain anaxial strain-cycle index diagram, a hyper-static pore water pressure-cycle index diagram, a partial stress-axial strain diagram and a partial stress-average effective force diagram, the diagrams areused for describing typical damage forms of a soil body under different earthquake cyclic dynamic load conditions and are in one-to-one correspondence with landslide types of different engineering soil slopes, and the type of the engineering soil slope landslide caused by earthquake is determined through an indoor geotechnical test method. The relation between the soil body failure form and the engineering soil slope landslide type is established, the landslide type of the engineering soil slope under the earthquake disaster condition can be pre-judged through the soil body failure characteristics, and the feasibility of effectively preventing and reducing engineering soil slope landslide hazards caused by earthquakes through an engineering soil slope design and construction method is improved.

Description

technical field [0001] The invention relates to the field of judging types of engineering side slope landslides, in particular to a method for judging types of engineering soil side slopes and landslides caused by earthquakes. Background technique [0002] With the continuous development of my country's traffic engineering construction, more and more engineering slopes have emerged, such as: road / highway embankments, railway / high-speed rail embankments, bridge abutment slope protection and other types of slope protection, etc., among which It also involves a large number of engineering soil slopes. How to prevent landslides is often involved in the design of engineering slopes, especially how to ensure the stability and safety of engineering slopes in earthquake disasters, has always been the focus of attention and one of the hot research topics in engineering circles. [0003] The common classification of landslides is mainly based on the fabric of landslides (such as: the ...

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Problems solved by technology

The above common landslide classifications are mostly confirmed based on the characteristics of the landslide body after the occurrence of the landslide, and the existing landslide classification theory is still unable to predict the landslide type of the engineering slope before the occurrence of the engineering slope landslide disaster

In addition, for engineering soil slopes, the occurrence of such slope landslides is usually closely related to the mechanical failure of the soil, but there is still a lack of classification theory and discrimination methods for engineering soil slopes and landslides related to the soil failure mechanism

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