Sampling device for civil engineering exploration

Abstract

The invention discloses a sampling device for civil engineering exploration, belongs to the technical field of civil engineering, and can be specially designed for sampling of wetland soil with high fluidity; in the process of inserting the device into the wetland soil, a sliding limiting rod can play a limiting role on a fan-shaped sealing piece through an upper ejector rod; so that a humidity soil sample above is prevented from entering the built-in sampling barrel, and the sampling accuracy can be improved; after the device reaches a selected sampling depth, the sliding limiting rod can be adjusted to slide towards the outside of the built-in sampling barrel, so that soil enters the built-in sampling barrel, and a soil sample is collected; then in the process of pulling the device upwards, the fan-shaped sealing piece cannot be unfolded downwards due to the limitation of the unfolding rod; therefore, the plurality of fan-shaped sealing pieces can seal the bottom end of the built-in sampling barrel, so that a soil sample cannot slide out and be separated from the built-in sampling barrel; therefore, the built-in sampling barrel can smoothly take out the soil sample, and the sampling efficiency can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a sampling device for civil engineering survey. Background technique [0002] Civil engineering is a general term for the science and technology of building various land engineering facilities. It not only refers to the applied materials, equipment and technical activities such as survey, design, construction, maintenance and repair, but also refers to the object of engineering construction. That is, various engineering facilities built on the ground or underground, on land, directly or indirectly serving human life, production, military affairs, and scientific research, such as houses, roads, railways, pipelines, tunnels, bridges, canals, dams, ports, power stations, Airports, offshore platforms, water supply and drainage, and protection projects, etc. Civil engineering refers to various technical work such as survey, planning, design, construction, installation and ...

AI Technical Summary

Problems solved by technology

[0003] Geological survey is an important link in civil engineering. In the process of surveying, it is necessary to use a sampler for soil sampling. When the sampler in the prior art samples wetland soil, due to the high water content of the wetland soil, it is more expensive than ordinary soil. Strong fluidity, in the process of extracting the sampler after the sampling is completed, the friction between the soil and the inner wall of the sampler may be insufficient, resulting in the separation of the soil sample from the sampler and the failure to take the soil sample out smoothly, which is easy to reduce Sampling efficiency

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