Geotechnical investigation sampling device and sampling method for architectural design

Abstract

The invention relates to a geotechnical investigation sampling device for architectural design, and relates to the field of geotechnical investigation engineering.The geotechnical investigation sampling device comprises a sampling support and a supporting barrel fixed to the sampling support, a rotary drilling outer barrel is arranged on the supporting barrel in a penetrating mode, a sampling inner barrel is arranged in the rotary drilling outer barrel, and a sampling opening is formed in the bottom end of the sampling inner barrel; a sealing mechanism is arranged between the sampling inner cylinder and the rotary drill outer cylinder, the sealing mechanism comprises a mounting ring plate, a plurality of sealing blades and a driving assembly, the mounting ring plate is fixed on the sampling inner cylinder, the plurality of sealing blades are arranged along the circumferential direction of the mounting ring plate, and every two adjacent sealing blades are arranged at intervals in a staggered manner in the axial direction of the sampling inner cylinder; all the sealing slices are connected with the driving assembly, and the driving assembly is used for driving the sealing slices to rotate towards the sampling opening so as to seal the sampling opening. According to the soil sampling device, a soil sample is not easily disturbed during sampling, and when the soil sample is taken out, soil in the sampling inner cylinder is not easily disturbed by the outside, so that the pollution of the soil sample is reduced, and the accuracy of a subsequent test result is guaranteed.

Description

technical field [0001] The application relates to the field of geotechnical survey engineering, in particular to a geotechnical survey sampling device and sampling method for architectural design. Background technique [0002] After the architectural drawings are designed, the actual construction needs to be carried out. During the construction, it is necessary to conduct survey and sampling of the rock and soil at the actual construction location. The rock and soil survey and sampling are used to understand the specific requirements of the construction conditions and foundation treatment, and provide a basis for design and construction. [0003] The relevant Chinese utility model patent with publication number CN210863227U discloses a geotechnical investigation and sampling device for architectural design, including a cylinder, the cylinder is provided with a top plate, the top plate is provided with a rotating shaft, the rotating shaft is provided with a drill bit, and the ...

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Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that the degree of disturbance of the soil sample is one of the important factors affecting the quality of the soil sample. The relevant sampling device transports the soil to the transparent feeding bottle through the propeller, which easily leads to the disturbance of the soil sample. If it is too large, it will affect the data accuracy of the subsequent test results

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