Test model for determining microscopic damping parameter of miscellaneous fill

Abstract

The invention discloses a test model for determining a microscopic damping parameter of miscellaneous fill. The test model for determining the microscopic damping parameter of the miscellaneous fill comprises a base, a slide groove device, a supporting device, a control device, an observation unit and a linking unit, wherein the observation unit is used for recording and simulating an inclined trajectory of a landslide body; and the linking unit is used for realizing synchronous operation of the observation unit and the control device. The slide groove device comprises three-section type slopeslide grooves end to end, wherein a middle section slope can retract or extend; the control device comprises a control platform, a vertical support, an oblique support, a control platform lifting adjusting device, a driving part and a starting device, wherein the driving part and the starting device are arranged on the control platform; the bottom of a starting device executing part is arranged in the slope slide groove and in sealing fit with the slope slide groove; the vertical support is linked with an automatic angular instrument at the bottom of the slide groove to mutually control an inclined angle of the slide groove; and the oblique support controls the length of a middle section slide groove. The test model for determining the microscopic damping parameter of the miscellaneous fill, disclosed by the invention, has the advantages that included angles between the three sections of slide grooves can be adjusted arbitrarily; through the extension of the middle section, the path of the slope is more diversified, and the application is wider. Therefore, the microscopic damping parameter of the miscellaneous fill is more accurately obtained.

Description

technical field [0001] The invention relates to the research field of landslide geological hazards of miscellaneous fills, in particular to a test model for determining the mesoscopic damping parameters of miscellaneous fills, which belongs to the technical fields of civil engineering geotechnical technology and geological engineering. Background technique [0002] my country is a country with frequent occurrence of geological disasters, with many types and wide distribution. With the acceleration of urbanization, the muck and construction waste generated in cities are increasing, resulting in a large amount of miscellaneous fill landfill and stacking. The composition of miscellaneous fill is complex, and its main properties are affected by factors such as geological environment, gravel content, accumulation time and method. There are also differences in the properties of soil and rock in different regions. Over the years, teaching, research and engineering practice personne...

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Problems solved by technology

However, at present, there are few domestic studies on the complex mechanical properties of miscellaneous fill, and the so-called "hard medium" is difficult to define. Due to its complex composition, this paper only selects gravel as a typical representative of "hard medium".

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