Multi-depth rotating-wheel closed sampler and method thereof

Abstract

The invention discloses a multi-depth rotating-wheel closed sampler and a method thereof. The sampler comprises a sampling holding rod with a clamping groove, a cylindrical sample storage nest, a sealing cylinder and a rotating holding rod, wherein the lower end of the sampling holding rod is connected with the cylindrical sample storage nest; the lower end of the cylindrical sample storage nest is connected with a conical drilling probe; a rectangular opening is formed on the side face of the sealing cylinder; the rotating holding rod is fixedly connected with the sealing cylinder; the sealing cylinder and the rotating holding rod are connected together to form a rotary outer sleeve, and the conical drilling probe, the cylindrical sample storage nest and the sampling holding rod are connected together to form a rotating-wheel type sample storage nest; and the rotary outer sleeve is sleeved outside the rotating-wheel type sample storage nest from top to bottom and is fixedly fastened by an annular spring buckle. The multi-depth rotating-wheel closed sampler can be used for sampling at different depths at a same place at a time, the sampling depth is accurately controlled, and the sampler equipment is simple, light in weight, easy and convenient to operate, high in efficiency and low in sampling cost and causes slight disturbance at the sampling place.

Description

technical field [0001] The invention relates to a portable in-situ high water content fluid soil, sludge and sludge sampler and its sampling method used in sludge storage yards, land reclamation sites and garbage sludge treatment sites, especially The utility model relates to a light-duty in-situ testing instrument designed for the rare soft fluid soil conditions in the depth direction of the sludge storage yard, the dredging filling site and the sludge treatment site, and belongs to the related technical fields of geotechnical engineering and environmental engineering. Background technique [0002] In river dredging and dredging projects, land reclamation projects and landfill projects of garbage and sludge, the problem of consolidation of soil with high water content will be encountered. For sites with high water content silt, if the drainage of the site is not smooth or the clay content of the dredged fill soil is high, the consolidation and settlement will be a long proc...

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention proposes a rotary multi-depth closed sampler that can perform drilling and sampling in the thin soft mud layer of the sludge dump, the dredging site and the garbage sludge treatment site And corresponding sampling methods to solve the sampling operation problem when other large drilling machines cannot enter the site, give sampling results, and provide reliable geophysical and chemical data for the project

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