direct shear test lab report

Direct shear box apparatus 2. The test utilizes the Direct Shear Box to test the soil then using the equation s the angle of friction can be determined.

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The laboratory report cover the laboratory procedures for determining these values for cohesionless soils.

. AFTER THE CALCULATIONS THE INTERNAL ANGLE OF FRICTION IS 571 O WHILE THE COHESION WAS BETWEEN 684-747 POUNDS DEPENDING ON HOW CALCULATIONS WERE PREFORMED. This indicates that the residual strength having been achieved. If you continue browsing the site you agree to the use of cookies on this website.

The soil specimens may be square or circular. Measure the diameter and height of the shear box. KEY WORDS AND DOCUMENT ANALYSIS a.

The direct shear test is one of the oldest strength tests for soils. The normal load is then reduced to zero as quickly as possible and the apparatus dismantled. Planning and organization Apparatus 1.

This concludes that the direct shear test is usually suitable in undrained conditions. This report presents the results of the testing program. Direct Shear Test Lab Report.

Direct shear test is used to predict these parameters quickly. Cohesion of the soil involved are required for the design. MID-AAF-0002-2 Measured Cohesion Water Content Shear box size 508 Peak Shear Stress 16393224114855862736.

The laboratory report cover the laboratory procedures for determining these values for cohesionless soils. The strength of a soil depends of its resistance to shearing stresses. Song Due April 17th 2018 Purpose The purpose of this lab is to determine the angle of friction for the soil sample in this case sand.

ASTM D 3080 - Standard Test Method for Direct Shear Test of Soils Under Consolidated Drained Conditions Significance. Direct shear test is useful when cohesionless soil are to be tested. CIVE1108 GEOTECHNICAL ENGINEERING 2.

Direct Shear Test CIVE 334 Dr. DATA SAMPLE COMPUTATION AND GRAPHS Table 1. The aim of this direct shear test is to determine the shearing strength of soil using.

The purposes of the testing program were to determine the shear strength parameters at the soil-geomembrane interface and to examine the precision of the direct shear test. The result is obtained as per IS code. The Direct Shear Test is an experimental procedure conducted in geotechnical engineering practice and research that aims to determine the shear strength of soil materials.

OVERALL THE LAB WAS. Direct shear of soil according to astm d 3080 SlideShare uses cookies to improve functionality and performance and to provide you with relevant advertising. DIRECT SHEAR TEST OBJEVTIVES To determine the shear strength parameters for a given soil using the direct shear test.

Values of the secant are plotted against the measured dry density in Fig. Perform the direct shear test using the direct shear apparatus using cohesionless soil. A direct shear test is a laboratory test used by geotechnical engineers to find the shear strength parameters of soil.

Shear strength is defined as the maximum resistance that a material can withstand when subjected to shearing. Determine the drained shear strengths of the samples as well as the angle of internal friction. 1 Theory The strength of a soil depends of its resistance to shearing stresses.

Relationship between shear test sample shape direct shear box by friction angle. INTRODUCTION The test is carried out on either undisturbed samples or remoulded samples. The size of the specimen generally used is about 20 to 25 cm2.

These two parameters are required for design of slopes calculation bearing capacity of any strata calculation of consolidation parameters and in many other analyses. The test is tested in a lab report. Compute 15 of the diameter in millimeters.

Compact sample in a 60mm x 60mm x 20mm cutting ring. It is made up of basically the components Frictional due to friction between individual particles. In case of cohesive soil drainage time will be more and there is no control over drainage as in case of triaxial test hence it is suitable for sandy soils.

The direct shear test measures the shear strength parameters which are the soil cohesion c and the angle of friction. DIRECT SHEAR TEST 1. NMT Lab Direct Shear Test High Normal Load TEST NO.

Additionally the longitudinal strain applied for the undrained test condition of any soil type is about 1-2mmmin. LABORATORY DIRECT SHEAR TEST REPORT PROJECT. Weigh the initial mass of soil in the pan.

NMT Soil Lab TEST DATE. DIRECTSHEARTEST SOILMECHANICS SOIL MECHANICS LABORATORY DEPARTMENT OF CIVIL ENGINEERING UNIVERSITY OF. The soil sample starts to rebound as soon as the normal load.

Direct shear box apparatus Fig. To facilitate the remoulding purpose a soil sample may be compacted at optimum moisture content in a compaction mould. Equipment Used Figure 1.

THE DIRECT SHEAR TEST CAN BE PERFORMED TO DETERMINE THE INTERNAL ANGLE OF FRICTION AND THE COHESION OF THE SOIL. Plot the shear stress-strain curves and the volumetric-shear strain curves and 3. It is made up of basically the components.

Whereas for the drained conditions it depends on the soil type. DESCRIPTORS-- water conservation1 geosyntheticsl canal lining b. A schematic diagram of the direct shear test apparatus is shown in Figure 92.

In this laboratory a direct shear device will be used to determine the shear strength of a cohesionless soil ie. Objective For any soil Cohesion C and Angle of Internal Friction Ø are two important engineering properties which indicate the shear strength of soil. Carefully assemble the shear box and place it in the direct shear device then place a porous stone and a filter paper in the shear box.

The laboratory report cover the laboratory procedures for determining these values for cohesionless soils. Loading frame motor attached. View Test Prep - direct_shear_test - report 3pdf from GTE 2601 at University of South Africa.

Direct shear test is used to predict these parameters quickly. Equipment for measuring deformations is removed. Assemble the shear box as indicated in.

The direct shear apparatus. Shear Test Experiment Lab Report 1052 Words5 Pages KNOWLEDGE OF EQUIPMENT. Chaoyang University of Technology-- Direct Shear Testing --5 Dismantling Stage When the test is over the shearing stress is reduced to zero.

The test equipment consists of a metal shear box in which the soil specimen is placed. Angle of internal friction f. The soil specimen was taken as per IS 2720 Part 1-1983.

Prepare the soil sample by adding small quantities of water and mixing until clay becomes stiff take care not to make sample to wet. This is completely different compared to the initial state of the sample. Direct shear test is used to predict these parameters quickly.

Need Help With My Direct Shear Test On Sand Report Chegg Com