Exploratory well sampling method based on undisturbed soil exploratory well sampling robot

Abstract

The invention discloses an exploratory well sampling method based on an undisturbed soil exploratory well sampling robot. The method comprises the steps of: 1, determining a position of a soil sample;2, acquiring an exploratory well; 3, lowering the sampling robot; 4, fixing the sampling robot and regulating a height and an orientation of the sampling robot; 5, lowering a sample box; 6, obtainingthe soil sample; 7, setting out the soil sample; 8, transporting the soil sample; and 9, shifting the sampling robot. According to the exploratory well sampling method disclosed by the invention, fixing between the sampling robot and the exploratory well is implemented by utilizing expansion of a supporting airbag; groove carving is carried out by utilizing the robot so as to sample; the soil sample is stably and accurately obtained by adopting a sampling mechanism; disturbance of the soil sample to the sample box in the setting-out process is balanced by utilizing a balancing airbag, so thatundisturbed soil can be taken out in the premise that a worker does not enter the well, thereby ensuring personal safety of the worker; and the exploratory well sampling method is small in volume, light in mass and high in intelligence degree, can be widely used for sampling various types of soil bodies and provides high-quality research samples for scientific research design.

Description

technical field [0001] The invention belongs to the technical field of undisturbed soil exploration well sampling, and in particular relates to an exploration well sampling method based on an undisturbed soil exploration well sampling robot. Background technique [0002] At present, in engineering and scientific research work, because soil samples taken mechanically will disturb the soil, in order to obtain the real physical and mechanical indicators of the soil, it is usually necessary to take exploratory well samples in the field. General exploratory well sampling is to use Luoyang to shovel the well to the design depth, then enter the underground well by experienced workers, and carve undisturbed soil samples of different depths on the well wall from top to bottom (generally, the diameter or side length is 20 centimeters to 30 centimeters), and then store in wax seals or directly conduct on-site physical index tests; exploratory well sampling has little effect on soil dis...

AI Technical Summary

Problems solved by technology

General exploratory well sampling is to use Luoyang to shovel the well to the design depth, then enter the underground well by experienced workers, and carve undisturbed soil samples of different depths on the well wall from top to bottom (generally, the diameter or side length is 20 centimeters to 30 centimeters), and then store in wax seals or directly conduct on-site physical index tests; exploratory well sampling has little effect on soil disturbance, and its test data is relatively more accurate, but this method has a greater potential safety hazard , especially as the excavation depth increases, the hidden dangers also increase

Casualties caused by workers working underground are not uncommon in engineering, such as falling gravel at the wellhead, suffocating to death due to lack of oxygen in the well, and even the well wall collapsed and buried. These hidden dangers have caused great harm to the personal safety of workers.

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