A computer-automatically controlled earth-borrowing device for undisturbed frozen soil

Abstract

The invention provides a computer-automatically controlled soil-borrowing device for undisturbed frozen soil, comprising: a frame, a lifting mechanism, a driving mechanism, an installation mechanism and a soil-borrowing mechanism, and the lifting mechanism and the driving mechanism are respectively arranged on the top of the frame. On both ends of the surface, the installation mechanism is distributed through the frame, and the soil-taking mechanism is arranged on the bottom of the installation mechanism; the installation mechanism includes a sleeve, an inner rod and a one-way bearing, the sleeve is distributed through the frame, and the rotation of the inner rod is set on the sleeve. In the barrel, a one-way bearing is arranged between the sleeve and the top of the inner rod, the lifting mechanism can drive the sleeve to move up and down, and the driving mechanism can drive the inner rod to rotate in the sleeve. The present invention uses the first driving part to provide power, reduces labor intensity, and improves operating efficiency; ensures that the fracture position at the bottom of the sample is accurate, and each drilled core sample can be precisely controlled to eliminate disturbance to frozen soil, which is beneficial to the test; The thermal disturbance of frozen soil ensures the accuracy of subsequent frozen soil tests.

Description

technical field [0001] The invention relates to the technical field of frozen soil sampling, in particular to a computer-automatically controlled earth-borrowing drill device for undisturbed frozen soil. Background technique [0002] Permafrost refers to various rocks and soils below zero degrees Celsius and containing ice. The permafrost distributed in China can be divided into high-latitude permafrost and high-altitude permafrost. The former is distributed in the Northeast, and the latter is distributed in the western alpine plateau and some higher mountains in the east (such as the Huanggangliang Mountains at the southern end of the Greater Khingan Mountains, Changbai Mountains, Wutai Mountains, and Taibai Mountains); undisturbed frozen soil refers to natural frozen soil that has little disturbance to the structure and mechanical properties of the soil during sampling. [0003] Frozen soil can generally be divided into short-term frozen soil / seasonal frozen soil and perm...

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Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a computer-automatically controlled earth-borrowing drill device for undisturbed frozen soil, which is used to solve the problems of complex operation, high labor intensity, and soil-borrowing efficiency in the prior art. Low, thermal disturbance to the frozen soil; the fracture position at the bottom of the sample is inaccurate, and each core sample cannot be precisely controlled, which will cause a certain degree of disturbance to the frozen soil and affect the physical properties of the frozen soil

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