Simple and labor-saving wild undisturbed soil column sampling device

Abstract

The invention relates to a simple and labor-saving wild undisturbed soil column sampling device which consists of components such as a base, a sampling tube vertical clamping plate 2, a sleeve 3 of abase stress auxiliary elongated rod, a vertical steel tube 4 with a stress hole, a base stress auxiliary elongated rod 5, a pressing rod 6, an elongated rod 8 of the pressing rod, a pressing plate 9 and a pressing rod fulcrum 10 and a sampling tube 11, wherein the base 1 is welded with the vertical steel tube 4 with the stress hole and the sampling tube vertical clamping plate 2; the base stress auxiliary elongated rod 5 is connected with the base to widen the base stress range; the elongated rod 8 is connected with the pressing rod 6 to increase the pressure of the pressing rod; the pressingplate 6 is arranged at the upper end of the soil column sampling tube 11, and then the pressure of the pressing rod is uniformly distributed to the soil column sampling tube 11; the pressing rod fulcrum 10 is arranged on the pressing plate 9, and a fulcrum of pressure of the pressing rod 6 is provided. The device is based on the lever principle, and pressure is exerted downwards through the pressing rod 9 to vertically press the soil column sampling tube 11 into soil. The device is convenient to manufacture, cheap in material, labor-saving to use and free of original soil layer damage in the sampling process, and the collection efficiency of an undisturbed soil column is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of soil environment sampling, and in particular relates to a simple and labor-saving outdoor undisturbed soil column sampling device. Background technique [0002] The scientific connotation and mechanism of the pedosphere, such as soil element biogeochemical behavior, soil pollution prevention and control, and climate change, sometimes need to collect undisturbed soil columns at a certain depth, carry out cutting and layering or simulate field environment for cultivation research, and the integrity of undisturbed soil column collection and the original state determine the reliability of the research process and the rigor of the conclusions. This kind of undisturbed soil column collection based on cultivation or simulation research is different from soil column sampling for detection purposes, and it is more required to reduce interference to the undisturbed soil column. Therefore, field soil column samplin...

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Problems solved by technology

Although the undisturbed soil column sampling system based on power (such as Geoprobe equipment) has good advantages in sampling depth and mechanical properties, it is difficult to carry out under the conditions of unsuitable field roads.

However, the field undisturbed soil column sampling equipment based on manpower has the disadvantage of large manpower consumption, and the original state of the undisturbed soil column is disturbed due to the vibration of the sampling tube during the use of external force

In addition, these undisturbed soil column sampling devices in the field often require professional equipment manufacturers to process and manufacture them, which are costly and difficult to purchase

However, high cost and fixed equipment manufacturing limit the special requirements for different soil column diameters in some experimental design processes

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