Silt sampler for geotechnical engineering investigation

The invention discloses a silt sampler for geotechnical engineering investigation, and belongs to the technical field of geotechnical engineering investigation, the silt sampler comprises a first limiting plate, one side of the first limiting plate is provided with a sampling mechanism, and the sampling mechanism penetrates through the first limiting plate; an adjusting mechanism used for adjusting the posture of the sampling mechanism is arranged at the top end of the sampling mechanism, the sampling mechanism comprises a protective shell, the two ends of the protective shell are fixedly connected with third limiting plates corresponding to the first limiting plates, and a hollow sampling drill rod is arranged on the side face of the protective shell; the device is simple in structure, drilling and sampling are carried out through mutual cooperation of multiple structures during use, the problem that a traditional sampler is difficult to go deep into silt for sampling is solved, the open end of the bottom of