Hydropower station sand layer soil liquefication judgment method

Abstract

The invention relates to the technical field of soil layer liquefication judgment and monitoring and specially a hydropower station sand layer soil liquefication judgment method. The method comprises the steps of S1, carrying out judgment method through adoption of a first judgment method, and entering a second step S2 if a standard is satisfied after judgment; S2, comprising a second judgment method, a third judgment method and a fourth judgment method, judging a sand layer through adoption of the second judgment method, the third judgment method and the fourth judgment method, and judging that the soil layer is liquefied when the judged soil layer satisfies any two of a second judgment method standard, a third judgment method standard and a fourth judgment method standard. Compared with the prior art, the method has the advantages that the method is more systematic and the judgment method is more accurate and has higher reliability in a mutual verification mode.

Description

technical field [0001] The invention relates to the technical field of earth-rock dam earthquake liquefaction judgment safety monitoring technology, and specifically proposes a two-dimensional quasi-static method simplified judgment method under the liquefaction condition of an earth-rock dam foundation. Background technique [0002] Under certain influences, such as strong earthquakes, the properties of sand below the groundwater level change, and the phenomenon of showing a special phenomenon similar to liquid is sand liquefaction, also known as sand blasting. Judging from the catastrophic earthquakes that have occurred in recent decades such as the Tangshan earthquake and the Osaka earthquake, the liquefaction of sand and soil has brought great disasters to human beings. Sand liquefaction directly affects the rapid development of my country's water conservancy, power stations and urban construction, and is an important link in our work on earthquake safety evaluation, sei...

AI Technical Summary

Problems solved by technology

[0005] In the actual detection of engineering soil quality, there are methods of observation and detection instruments in the existing technology, but the current detection methods in the existing technology are relatively traditional, and the evaluation method is single, the evaluation system is not perfect, and the reliability of the detection results is not high. Therefore, For the current judgment method, there is room for optimizing the judgment method, and it is necessary to better apply it to specific actual situations

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