Split Spoon Sampler
Split Spoon Sampler
SPT Automatic Trip Hammer
Detailed Product Description:
Automatic Trip Hammer is produced as per BS1377: Part9:1990 for carrying out the Standard Penetration Test (SPT).
The Automatic Trip Hammer comprises following parts:
a) A weight made of steel and provided with an axial hole with a diameter which is 3 mm to 4 mm larger than that of the guide rod. It is of 63.5 kg.
b) A pick-up and release mechanism to ensure that the weight has a free fall of 760 mm and shall not influence the acceleration and deceleration of the weight or the rods.
c) An inner guide shaft to permit the weight to drop with minimal resistance, and to ensure the weight strikes the anvil squarely.
d) An anvil made of steel with an integral threaded portion to connect squarely and rigidly on to the top of the uppermost extension rod.
In order to carry out the Standard Penetration Test (SPT) to BS 1377:Part 9:1990. The Auto Trip Hammer, SPT Drive Rods and a Split Tube Sampler are worked together.
The basic operation of the complete set Standard Penetration Equipment are like the following sketch shows.
Description of goods:
SPT Split Tube Sampler is for doing the Standard Penetration Test (SPT). We manufacture it according to BS 1377: Part 9: 1990. A Top ball valve Adaptor, a pair of Split Spoons, and an open SPT Shoe compose a complete set of SPT Sampler. Both plastic type and steel type basket retainers are available. The ball valve adaptor prevents sample from being washed out of the sampler when the sampler is withdrawn from the borehole. A 60 degree nose cone and long solid rod with 60 degree point are available as well. The screw connection on the top adaptor depends on the type of drill rods being used to drive the sampler, but is most frequently 1.1/2" B.S. Whitworth, NWY Rod, BW or AW Rod.
Split Spoon compose of Sample Spoon Head, Split Tube, SPT Adaptor, SPT Shoe.
The standard Split Tube Sampler is 2" (50.8 mm) OD x 1.3/8" (34.9 mm )ID x 18" (457mm)/ 24" (610 mm) long. For heavy driving conditions, the Heavy-duty "Tuflok" design is available.
|ASTM / BS|
|STANDARD PENATRATION TEST|