A new cone information transmission system

A new small diameter cone sampler has been developed and its applicability for Pleistocene Osaka Ma 12 clay, lbaraki organic and clay deposits was examined (Shogaki and Sakamoto, 2004; Shogaki, et al. 2004). In this paper, a cone information transmission system by wireless is outlined. The relationship between cone information and undrained shear strength of samples obtained from a cone sampler is examined and the applicability of the cone sampler for natural clay deposits is examined through unconfined compression (UCT) and index properties tests for samples obtained this way. The cone information transmission was not affected by rod length at a range of 34 in. There was no difference in cone information between a cone sampler having a wireless transmission system and one using a standard wire transmission. Concerning the cone sampler, the sampling cost is lower and soil sampling time is shorter, since an undisturbed soil sample can be taken without a borehole. The cone sampler can take higher quality samples and cone information.