
The cone penetration test (CPT) is widely used for the evaluation of in-situ soil properties and site characterization. The direct results from the cone penetration test are cone resistance, sleeve friction and pore water pressure. Today every part of the world experience a decrease in the good soil area for development and therefore engineers need to have an alternative solution in construction on soft soil. The aim of this study was to measure the tip resistance for the different type of tips shape at different rate of penetration using the conventional cone, ball and T-bar tips. The ball and T-bar tips offer several advantages to conventional tip used for the in-situ estimation of penetration resistance and strength of soft soil. The rates of penetration used were 5 mm/s, 20 mm/s, 40 mm/s. The results based on tip shapes showed that the ball and T-bar give 2-4 times higher and 3-5 times higher respectively than the standard tip. For Batu Pahat clay, tips with higher surface area gave better results and based on the tip shapes used in this, the T-bar tip gave better results. For the penetration rate
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