Test device and test method for simulating submarine landslide impact structure

Abstract

The invention relates to a test device and a test method for simulating a submarine landslide impact structure. The method is mainly used for researching impact effect and the damage effect of the structure after undersea landslide instability damage. The device comprises four parts of a frame system, a lifting system, a soil bin system and a test system. A support protection and test space is provided for the whole device through the frame system. Angle adjustment of the slide way within a certain range is achieved through the lifting system. Stable storage and rapid release of simulated landslide substances are achieved through the soil bin system, and dynamic monitoring of the structure strain distribution rule and the change process in the landslide impact process is achieved through the test system. According to the invention, the actual damage phenomena of quick start and hydroplaning migration of the submarine landslide are fully restored, the influence of the distance between the structure and the submarine landslide on the impact effect is fully considered, the distance-adjustable physical model test device for the submarine landslide impact structure is realized, and thedefects of theoretical calculation and numerical simulation are avoided.

Description

technical field [0001] The invention relates to the technical field of civil engineering tests, in particular to a test device and a test method for simulating the impact of submarine landslides on structures, and is mainly used for studying the impact characteristics and damage effects on marine engineering structures after submarine landslides are destabilized and destroyed. Background technique [0002] Submarine landslides are a major form of marine geological disasters. Submarine landslides directly affect the construction and operation of drilling platforms, submarine optical cables, wind power pile foundations, and port terminals. Frequent or sudden submarine landslide geological disasters in offshore areas have seriously affected the construction of offshore economic belts and restricted the development of my country's Maritime Silk Road. Advance in an all-round way. Submarine landslides have special occurrence environments, complex genetic mechanisms, and unique fai...

AI Technical Summary

Problems solved by technology

Due to the late start of research on submarine landslides, few means, and great difficulty, the current research on the impact of submarine landslides on engineering structures has seriously lagged behind the construction practice of marine engineering.

[0003] In recent years, some scholars have used theoretical calculation and numerical simulation methods to study the impact of submarine landslides on engineering structures, but they are limited by many assumptions, resulting in the degree of matching between their research results and engineering reality. lower

The physical model test is the most intuitive and reliable means to carry out the research on submarine landslide impact engineering structures at this stage, but there is no mature test device for submarine landslide impact structures available

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