Detection device for sediment thickness in foundation engineering construction

The utility model discloses a detection device for sediment thickness in foundation engineering construction, which relates to the technical field of foundations, and comprises support frames, a mounting plate and a drill bit, the two sides of the mounting plate are fixedly provided with the support frames, the surface of the mounting plate is rotatably connected with a limiting ring, the inner surface of the limiting ring is uniformly provided with internal threads, and the drill bit is fixedly connected with the mounting plate. And a protective shell is arranged in the limiting ring, external threads are evenly arranged on the surface of the protective shell, the internal threads are connected with the external threads in a meshed mode, a transparent glass tube is fixedly connected into the protective shell in a sliding mode, the size of the transparent glass tube is matched with the size of the interior of the protective shell, and a drill bit is fixedly installed at the bottom of the protective shell. The