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Dynamic Cone Penetration Test Apparatus (AIM 134)

Ref. Standard IS:4968 (Part - 1)


For determining the resistance of different types of soil strata to dynamic penetration of a 50 mm cone and thereby obtain an indication regarding their relative strength or density or both. The method helps reconnaissance survey of large area in a short time. In some cases, especially if the depth is great, it may be difficult to pull out the cone after the completion of the test. Hence the cone without threads should be used in case of deep soundings as it may be left in the ground. For shallow depths, generally upto 15 m, if the conditions permit, the cone with threads may be used.