ผู้เขียน หัวข้อ: The Standard Penetration test is original in soil test method  (อ่าน 4143 ครั้ง)

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The Standard Penetration test is original in soil test method
« เมื่อ: กันยายน 04, 2013, 10:14:51 AM »
 ;) The Standard Penetration test is original in soil test method used to resolve the geotechnical engineering or civil engineer for soil classification in properties of soils. The SPT is managed in regularity with ASTM D 1586. Standard penetration testing applies a sampling instrument known as a splitspoon or split-barrel sampler. The sampling instrument is 2.5 feet long (0.762 m), with an outside diameter of 2 inches (51 mm) and inside diameter of 1.375 inches (35 mm). The instrument comprises of a drive shoe, split barrel and a head, which attaches to drill rods. An original modification of the split spoon sampler is a split-barrel sampler, which includes of a solid shaft with split insert liner. The standard penetration test comprises of working the sampler into the soil. while recording the blow count desired driving the sampler a specific distance. :wanwan013: