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The apparatus is designed for conducting in situ vane shear test from the bottom of a bore hole in saturated cohesive deposits for determining their in place shearing resistance.
Specifications: The equipment consists of a torque applicator assembly mounted on a base. A gear wheel, which is marked in degrees, holds a torque ring and is geared to a crank. The torque ring is a split ring and deforms as torque is applied and the deformation is indicated by a dial gauge. A calibration Chart to convert dial gauge readings to torque force in kg.cm. is supplied. A pointer is provided for registering the rotation of the vane. A detachable stand is provided to anchor the instrument. An attachment to securely hold the string of rods is provided.
Salient Features
- The equipment comprises of the followings :
Torque applicator assembly capacity 2000kg cm with split proving ring and dial gauge 0.002mm x 5mm complete with stand. Vane (with vane rod) 37.5mm dia x 75mm high ........... 1 No.
Vane (with vane rod) 50mm dia x 100mm high ............ 1 No.
Torque rod (Square cross section) 0.6 mtr. long .......... 1 No.
Rods, quick coupling type, 1 mtr. long ....................... 25 Nos.
Rods, quick coupling type, 1/2 mtr. long .................... 10 Nos.
Dummy rod, corresponding to 37.5mm dia vane .......... 1 No.
Dummy rod, corresponding to 50mm dia vane ............. 1 No.
Essential Accessories : Guide with ball bearing arrangement for alignment of the string of rods for use with 10cm casing pipe. Guide with ball bearing arrangement for alignment of the string of rods for use with 15cm casing pipe.
Accessories :
Vane (with vane rod) 65mm dia x 130mm high.
Vane (with vane rod) 75mm dia x 150mm high.
Vane (with vane rod) 100mm dia x 200mm high.
Dummy rod, corresponding to 75mm dia vane
Dummy rod, corresponding to 100mm dia vane
Note : Drilling equipment including casing for bore hole and jacking arrangement which are required for performing the test do not form a part of the above outfit.
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IN SITU VANE SHEAR TEST - (IST-01)
Russian