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Soil sampler for static sounding equipment

A technology of static penetrating and earth-taking equipment, which is applied in the field of foundation soil survey, construction, infrastructure engineering, etc. It can solve the problems of complex equipment, non-sampling, and no sampling function, so as to achieve accurate mutual integration and reduce Work load, good cleaning effect

Inactive Publication Date: 2019-07-12
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this aspect started quite late in China. At present, the single-double bridge static sounding and hole pressure static sounding widely used in China do not have the function of sampling.
[0004] Traditional samplers and their use methods have the disadvantages of complex equipment, heavy workload, slow speed, high cost, and greater environmental impact. Static CPT has the advantages of simple equipment, small workload, fast speed, and low price, but it cannot sampling

Method used

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  • Soil sampler for static sounding equipment
  • Soil sampler for static sounding equipment
  • Soil sampler for static sounding equipment

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Embodiment Construction

[0018] like Figure 1-3 As shown, the soil fetcher of the present invention includes a cone head 8, a sampling cylinder 6, and a bearing shaft 5. Both sides of the upper part of the sampling cylinder are provided with sampling cylinder card slots 2, each of which has a steel ball 3, and the lower part of the card slot is provided with an upper tension bearing surface 4; the lower part of the bearing shaft is provided with a bearing shaft groove 7. When the probe rod is lifted to the point where the sampling cylinder 2 is in contact with the bearing shaft groove 7, the steel ball 3 slides down into the gap between the bearing shaft groove 7 and the upper tension bearing surface 4, thereby blocking the probe rod so that the cone head 8 cannot be penetrated alone. When the soil is penetrated next time, the force on the probe rod will be transmitted to the sampling cylinder 6 through the steel ball 3, so that the sampling cylinder 6 cuts down to take the soil. At the same time, t...

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Abstract

The invention relates to a soil sampler for static sounding equipment. The soil sampler comprises a sampling cylinder (6), a bearing shaft (5) arranged in the sampling cylinder (6) and a cone head (8)arranged at the lower end of the bearing shaft. The soil sampler is characterized in that a sampling cylinder neck (2) is formed in the upper part of the sampling cylinder, a steel ball (3) is placedin the sampling cylinder neck (2), an upward pulling bearing surface is arranged below the neck, a downward drilling bearing surface (1) is arranged on the upper surface of the sampling cylinder (6),and a bearing shaft groove (7) is formed in the lower part of the bearing shaft and matched with the size of the steel ball (3), and the bearing shaft groove can accommodate the steel ball (3). According to the soil sampler, underground soil samples can be quickly taken out while static cone sounding experiments are conducted.

Description

technical field [0001] The invention belongs to the technical field of deep underground soil extraction in geotechnical engineering, and in particular relates to a static sounding device that can directly extract soil from deep underground layers. Background technique [0002] Taking soil samples is an indispensable and regular work in geotechnical engineering investigation, and it provides samples for laboratory tests for quantitative evaluation of geotechnical engineering problems. In-situ test The static penetration test has been used in my country for more than 30 years. It uses the contact method to test the strength and deformation of the soil, and on the basis of establishing a regression relationship with a variety of conventional methods, it determines the various properties of the tested soil on the spot. Compared with drilling, the design parameters and indicators, such as bearing capacity, compressive modulus, soil state, etc., are simple, economical, and fast, bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D1/04
CPCE02D1/04
Inventor 加瑞贺文贤黄永山荔晓航吕志恒崔肇琳
Owner TIANJIN UNIV
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