Measuring device for complex terrain geotechnical engineering investigation

The utility model relates to the technical field of rock-soil measurement, and discloses a measuring device for complex terrain geotechnical engineering investigation, which comprises a base, a supporting seat arranged above the base, a group of supporting legs fixedly arranged between the supporting seat and the base, a U-shaped plate fixedly connected to the upper end of the supporting seat, and a hydraulic cylinder fixedly connected to the upper end of the U-shaped plate, the output end of the hydraulic cylinder is fixedly connected with a driving part, the output end of the driving part is in transmission connection with a drill rod, an annular cavity is formed in the drill rod, an annular soil inlet hole is formed in the lower side wall of the annular cavity, the upper side of the interior of the annular cavity is slidably connected with a soil sampling ring, and the left side of the lower end of the soil sampling ring is fixedly connected with a pull rod. The underground water level measuring device can