Soft rock weathering and breaking experimental apparatus and experimental method thereof

Abstract

The invention discloses a soft rock weathering and breaking experimental apparatus and an experimental method thereof. The soft rock weathering and breaking experimental apparatus is placed on a frequency modulatable vibrating table and is provided with a transparent inner barrel and an outer barrel. A required volume of water can be added by a water inlet on a barrel upper cover; a water outlet and a gas delivery opening are formed at the bottom of the experimental apparatus; a plurality of layers of round hole sieve plates are arranged in the inner barrel; hole diameters of the round hole sieve plates are sequentially decreased from top to bottom according to a standard sieve hole size of a laboratory; micro high-strength frequency modulatable fluorescent lamps and monitoring probes are placed in the interval between the inner barrel and the outer barrel above each sieve; geotechnical cloth is arranged for isolating soil and filtering water. According to the soft rock weathering and breaking experimental apparatus and experimental method which are disclosed by the invention, effects of variable natural factors on soft rocks are controlled in a room by simulation so as to research influence of each factor on soft rock weathering; by the monitoring probes, the weathering and breaking process of each layer of soft rock particles can be observed and recorded, and the weathered broken rock particles can be automatically sieved and are continuously weathered and broken; the soft rock weathering and breaking experimental apparatus and experimental method have the advantages of being visual, convenient, rapid, accurate and the like.

Description

【Technical field】 [0001] The invention relates to the technical field of engineering construction, in particular to an experimental device for weathering and crushing of soft rock and an experimental method thereof. 【Background technique】 [0002] Soft rock weathering and fragmentation refers to a series of physical and chemical changes that occur in soft rocks under external environmental conditions (light, temperature difference, precipitation, wind speed, etc.), making soft rocks change from a whole to residual soil with different particle sizes. a phenomenon. [0003] With the development of society, more and more engineering constructions inevitably come into contact with various soft rock geological environments, especially highways, railways, water conservancy, and slope management. Due to the changing external conditions, soft rocks are prone to disintegration and fragmentation, and gradually turn into gravel soil, resulting in a decrease in the overall stability of...

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Problems solved by technology

[0004] At present, research on weathering and fracture of soft rock at home and abroad is mainly concentrated in field surveys. Since external factors are mostly uncontrollable, many indicators need to rely on uncontrollable changes in the natural environment, which makes research in this area relatively extensive and insufficient in precision. As a result, for a long time Indoor research is

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