A push-type river bed sediment sampling device

Abstract

The invention relates to a push type riverbed sediment sampling device and belongs to the technical field of water conservancy measurement. The sampling device comprises an operation platform, a feeler lever, a sampler shell and a sampler, wherein the operation platform is installed on a surveying ship; the upper end of the feeler lever is connected with the operation platform, while the lower end thereof is connected with the upper end face of the sampler shell; the sampler is installed in the sampler shell; the operation platform enables the sampler to fall to a sampling position for sampling and lifts the sampler to the surveying ship for completing the sampling work through the feeler lever; the sampler shell is composed of a rectangular shell, a wedge-shaped block welded at the lower end of the rectangular shell and two wing plates; two inclined surfaces of the wedge-shaped block are located on two side faces of the rectangular shell; the two wing plates are located on the front and back of the rectangular shell; the sampler is installed in the rectangular shell; the front end of the sampler faces the front of the rectangular shell; a through hole matched with the front end of the sampler is formed in the front wall of the rectangular shell. The push type riverbed sediment sampling device can sample riverbed sediments in a safe, reliable, high-fidelity and high-precision manner.

Description

technical field [0001] The invention belongs to the technical field of water conservancy measurement, in particular to a propelled river bed sediment sampling device. Background technique [0002] There are a lot of sediments on the bed of reservoirs, downstream channels, lakes and estuaries, so it is very important to study the basic characteristics of sediments. For example, the dry bulk density of silt can comprehensively reflect the cohesive force between particles and the effect of large-scale structure, and its size directly affects the starting and scouring movement forms of silt and the corresponding numerical relationship; heavy metal pollutants in silt are directly related to water sources The water quality is safe, and heavy metals are also the most important pollutants that limit the use of silt land; viruses can prolong their survival time by attaching to silt, and re-enter the water body through external forces such as storm action, dredging, boating, and even ...

AI Technical Summary

Problems solved by technology

In addition, sampling depth and location are difficult to control

[0004] The current sampling methods for sediments on the beds of reservoirs, downstream channels, lakes, and estuaries cannot fully guarantee high-fidelity sampling. It is necessary to propose a method that does not interfere with sediments, accurately locates sediments at different vertical depths, Multi-point high-fidelity sampling device

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