A static penetrating soil fetching device

A technology of static penetrative penetration and soil fetching, which is applied in the fields of on-site foundation soil survey, construction, and infrastructure engineering, etc. It can solve problems such as unfavorable project implementation and progress, troublesome operation, etc., and achieves simple and practical operation, fine layers, and economical Effects of Working Time and Costs
CN104452728BActive Publication Date: 2017-05-24CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
Publication Date
2017-05-24

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Abstract

The invention relates to the field of geological exploration, in particular to a static cone penetration test soil sampler comprising a cylinder with the top and bottom which are provided with screwed threads. The upper side of the wall of the cylinder is provided with an installation hole; a sampling cylinder component which is capable of overturning along the cylinder longitudinally is rotationally fixed in the installation hole; an elastic member contacting with the sampling cylinder component elastically is fixed into the corresponded position of the inner wall of the cylinder and sampling cylinder component. The static cone penetration test soil sampler is capable of sampling required soil samples during the static cone penetration test, workload of field exploration efficiency is improved significantly, the number of drilling is decreased appropriately, the operation time and cost are saved, and the accuracy and efficiency of the static cone penetration test are improved.
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Description

technical field

[0001] The invention relates to the field of geological survey, in particular to a static penetration exploration soil fetcher. Background technique

[0002] 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. The design parameters and indicators, such as bearing capacity, compressive modulus, soil state, etc., are simple, economical, and fast compared with drilling, but there are also certain defects, such as the inability to identify the color of the soil layer and the difficulty in accurately naming it. Soil type, determine the state, and for the same mechanical index (same penetration resistance value), but different types of soil (such as cohesive soil and sandy soil), it is ...

Claims

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