A sampler of about 650mm sizing, 50mm exterior diameter, and 35mm inside diameter is inserted 150mm in the bottom. Then, it really is pushed With all the soil by repeated blows within the dropped hammer which weights 3. We do the job with several pile kinds, such as bored piles, https://busybody50371.mdkblog.com/45592231/indicators-on-soil-investigation-solutions-bangladesh-you-should-know