Thin-wall soil sampler capable of measuring water content of soil sample

Abstract

The embodiment of the invention discloses a thin-wall soil sampler capable of measuring the water content of a soil sample, relates to the technical field of geotechnical engineering investigation equipment, and solves the problem of low water content measurement and soil sample collection quality of a soil sampler. The thin-wall soil sampler capable of measuring the water content of the soil sample comprises a base, a soil sampling assembly and a detection assembly, the first end of the base is used for being connected with a drill rod, and the second end of the base is provided with a limiting pipeline. The soil sampling assembly comprises a soil sampling pipe, the soil sampling pipe is consistent with the limiting pipeline in extension direction and located in the limiting pipeline, and the soil sampling pipe is slidably connected with the limiting pipeline through a first sliding mechanism; the detection assembly is located in the soil sampling pipe, is in sliding connection with the soil sampling pipe through a second sliding mechanism and comprises a water content detection part and a supporting rod, the first end of the supporting rod is fixedly connected with the second end of the base, the second end of the supporting rod is fixedly connected with the water content detection part, and the second end of the supporting rod is close to the end, away from the base, of the soil sampling pipe. The thin-wall soil sampler capable of measuring the water content of the soil sample is used for sampling the soil sample and measuring the water content of a soil body.

Description

technical field [0001] The embodiments of the present application relate to the technical field of geotechnical engineering investigation, and in particular to a thin-walled soil fetcher capable of measuring the water content of soil samples. Background technique [0002] In the process of geotechnical engineering investigation, according to the engineering requirements, it is necessary to take soil samples for indoor tests to determine the physical and mechanical parameters of the soil in each soil layer, among which the soil moisture content index has an important impact on the physical and mechanical properties of the soil. However, during the collection, transportation and storage of soil samples, due to the mechanical disturbance caused by sealing and handling, the measured value of water content will be affected, which cannot reflect the real situation of water content in the undisturbed soil. [0003] In the soil fetcher of the related art, a ring-type water content t...

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Problems solved by technology

[0004] However, since the probe is fixed on the inner upper end of the thin-walled device in this soil extractor, it is necessary to take the soil sample first, and then measure the water content of the soil sample, and the thin-walled device will affect the soil when taking the soil sample. Generates mechanical disturbances and, therefore, low-quality soil moisture data obtained by the probe

At the same time, when the drill rod is driven by the drilling rig, the thin-walled device connected to the drill rod is pressed into the soil for soil sample collection. The drill pipe or thin-walled device may be skewed, which will affect the quality of the soil.

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