Sampling device for getting undisturbed cohesive soil in exploratory well exploratory trench

Abstract

The invention discloses a sampling device for getting undisturbed cohesive soil in an exploratory well exploratory trench. The sampling device comprises a counterforce frame with four support feet anda sample preparation pipe; an ground anchor is arranged on the counterforce frame with the four support feet; a ball screw nut is arranged on the top of the counterforce frame with the four support feet; a ball screw is arranged in the ball screw nut; a handle is arranged at one end of the ball screw, while the other end of the ball screw is connected with an outer pipe connector; an outer pipe soil peeler is arranged on the sample preparation pipe in a sleeving manner; one end of the outer pipe soil peeler is in threaded connection with the outer pipe connector; a thrust bearing slot is formed in one end, corresponding to the outer pipe soil peeler, of the outer pipe connector; a thrust bearing shaft is arranged in the thrust bearing slot; an inner pipe connector is connected with one end of the sample preparation pipe; a conical roller bearing slot is formed in the outer pipe soil peeler; a conical roller bearing is arranged in the conical roller bearing slot; one end of the inner pipe connector passes through the conical roller bearing and is in threaded connection with a slotted lock nut. The invention provides the sampling device for getting the undisturbed cohesive soil in the exploratory well exploratory trench, which is convenient to sample.

Description

technical field [0001] The invention relates, more particularly, to a device for taking undisturbed cohesive soil samples in exploration trenches of exploration wells. Background technique [0002] The undisturbed clay samples were taken in exploratory wells and trenches, and the "box soil sample" method was adopted. The current method is: take out a larger clod, slowly cut it to a certain size, and then put it in the container to "cut the foot to fit the shoe" method, there is a series of "disturbances". And once the clod is broken, the sampling fails and must be re-sampled. Not only time-consuming and labor-intensive, but also very troublesome. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a device for taking undisturbed clay samples in exploratory wells and trenches, which is convenient for sampling. [0004] In order to achieve the above object, the present invention provides the following technical so...

AI Technical Summary

Problems solved by technology

The current method is: take out a large soil clod, slowly cut it into a certain size, and then put it into the container "cut the foot to fit the shoe" method, there are a series of "disturbances"

And once the clod is broken, the sampling fails and must be re-sampled

Not only time-consuming and labor-intensive, but also troublesome

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