Rock shear test device


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Machine Enclosure Machine Frame

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Slake durability apparatus, Rock mechanics testing equipment

This test method has been developed to ASTM D4644 for assessing the deterioration of rocks over a period of time when subjected to water immersion. The apparatus consists of a motorized drive unit mounted on a baseplate and connected to two or four drums which rotate at a speed of 20 r.p.m.

Direct shear test -

A direct shear test is a laboratory or field test used by geotechnical engineers to measure the shear strength properties of soil or rock material- or of discontinuities in soil or rock masses. The U.S. and U.K. standards defining how the test should be performed are ASTM D 3080- AASHTO T236 and BS 1377-7!1990


A test method using the shear test device of claim 4, comprising the following steps: (1) applying an original horizontal shear force, an original horizontal pressure and an original normal pressure for simulating the original stress conditions of rock mass in a surrounding rock to the test piece, wherein the method for applying the original ...

Standard Test Method for Performing Laboratory Direct Shear

shear strength of the rock mass! particularly when design is controlled by discontinuities filled with very weak material· 6· Apparatus 6·1 Testing Machine—Loading device! to apply and register normal and shear forces on the specimens· It must have adequate capability to apply the shear force at a rate conform_ing to the specified requirements·


Used for determining the shear strength of cohesive soils_ General description The Pocket Shear Vane Apparatus is widely used to perform onsite or lab measurements of excavations covering trenches and test pits, thin-wall or split core samples, by providing a quick and efficient method for shear strength measurements_

Rock mechanics testing equipment,

Rock mechanics is an important field of geotechnical engineering as it is the theoretical and applied science concerning the physical behavior of rocks and rock masses; Slopes- tunneling- dams foundations and surface constructions requires the characterization of involved rocks and the analysis of their reaction to induced stresses;

(PDF) Suggested methods for the quantitative description of

Then, based on a new dynamic direct shear testing device on rock joints, the granite discontinuities with various lengths (200 mm to 1000 mm) and undulated amplitudes (3 mm to 23 mm) were designed |||

Direct Shear Testing - APS - Wille

Direct Shear Testing. Static Systems· Dynamic Systems· Combined Direct Shear / Triaxial Testing· Polyaxial Testing· Gas Hydrate Testing· Hydraulic Fracturing Testing· Permeability Testing Systems· Standard Devices. Portable Point Load Test Apparatus· Economic Cerchar Rock Abrasiveness Tester· Standard Cerchar Rock Abrasiveness Tester· Abrasive ...

Rock direct shear testing machine, Rock shear test

This model rock direct shear test machine is used for rock shear test under constant vertical pressure, it features compact structure, easy in operation. It’s comprised of two parts, the jack on upper half supply normal stress, lower half has two jacks, one for shearing on one side and the other for measuring the residual stress.