STANDARD PENETRATION TEST
STANDARD: BS 1377: PART 9:1990
This Standard sets out a method for determining the resistance of soils to the penetration of a sampler, and the obtaining of disturbed samples of the soils for identifi cation purposes. The Auto Trip Hammer, SPT Drive Rods and a Split Tube Sampler are worked together.
Standard accessories
I. The Automatic Trip Hammer comprises a weight of 63.5 kg complete with pick-up and self-tripping
mechanism that ensures that the weight has a free-fall of exactly 760 mm. The inner shaft acts as a guide that permits the weight to drop with minimal resistance and ensures that the weight strikes the anvil squarely.
II. The SPT drive rods thread usually be processed with a 1.1/2" B.S. whitworth to fit our standard SPT rods. Adaptors to other types of drill rod can be supplied on request. The overall length of the hammer is 2.6m extended and 1.8 m when unextended. The total weight of the hammer is 107 kg.
III. The standard Split Tube Sampler is 2" (50.8 mm) OD x 1-3/8" (34.9 mm ) ID x 18" (457 mm) / 24" (610 mm) long. For heavy driving conditions, the Heavy-duty "Tufl ok" design is available.
ABOUT TIANPENG
Zhuozhou Tianpeng (generally refers to Zhuozhou Tianpeng Imp. and Exp. Trade Co., Ltd & Zhuozhou Tianpeng Instrument Manufacturing Co., Ltd.) was founded in 2006, and specialize in the design, manufacture and supply of high-quality construction materials testing machine for concrete, soil, cement, asphalt and etc. We have more than 300 customers worldwide, including many of the major companies around the world. More than 10 years of industry experience, professional technical and service teams help us better meet customer needs, making us an ideal partner.
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