Soil sampler for opening on closing/opening side of tubular airbag and soil sampling method thereof

Abstract

The invention relates to a soil sampling device and a soil sampling method and belongs to the field of geotechnical engineering investigation in civil engineering. A soil sampler for opening on a closing / opening side of a tubular airbag has a detachable combined structure of a tubular soil sampling pipe and comprises a plurality of soil sampling pipe middle sections, a soil sampler joint and a soil sampling pipe head section which are sequentially connected through connecting joints; the tubular soil sampling pipe comprises a soil sampling pipe main body; a plurality of horizontal separating plates are equidistantly arranged in the soil sampling pipe main body; a chamber is formed between each two horizontal separating plates; a pipe wall side opening is correspondingly arranged on a pipe side wall of each chamber in the soil sampling pipe main body; one airbag is embedded in each chamber formed between each two horizontal separating plates; the airbags are communicated through an air pipe; and valve devices are arranged at two ends of the airbags which are communicated together. According to the soil sampling method provided by the invention, the operation is easy, the opening on a closing / opening side wall is realized by controlling an airbag taking device, and the soil sampling is convenient and quick.

Description

[0001] technical field [0002] The invention relates to a soil-taking method with a soil-taking device, which belongs to the field of geotechnical engineering investigation in civil engineering. Background technique [0003] Existing soil extractors adopt cylindrical soil extractors, which adopt static pressure or hammering methods. When the soil extractor is pressed down, the soil enters into the soil extractor from the opening at the lower end of the soil extractor. The disadvantage of this soil extractor is that when the soil extractor is pressed down, the soil sample will be affected to a certain extent due to the friction force of the soil extractor wall against the soil, especially It is soft soil and the sampling rate is low. For the soil in the flowing state, the relative sliding occurs between the soil sample and the soil extractor, resulting in a large difference between the height of the soil sample taken out and the height of the soil extractor pressed into it,...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the soil samples at the target depth cannot be accurately extracted in the current sampling process, a tubular airbag-sealed side-opening soil fetcher was developed.

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