direct shear test lab report

The aim of this direct shear test is to determine the shearing strength of soil using. Shear strength is defined as the maximum resistance that a material can withstand when subjected to shearing.

Direct Shear Test Results Download Table

The direct shear test measures the shear strength parameters which are the soil cohesion c and the angle of friction.

. Among which one of the most common and simplest methods is the direct shear test using shear box apparatus which can be used to determine the shear strength parameters cohesion c and internal angle of friction φ under various normal stress and shear strain rate conditions. Compute 15 of the diameter in millimeters. The test utilizes the Direct Shear Box to test the soil then using the equation s the angle of friction can be determined.

OVERALL THE LAB WAS. NMT Soil Lab TEST DATE. 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.

Assemble the shear box as indicated in. Direct shear test is used to predict these parameters quickly. Loading frame motor attached.

The direct shear test is one among the oldest strength tests for soils. Compact sample in a 60mm x 60mm x 20mm cutting ring. This lab test can be conducted for both undisturbed and remolded specimens.

Introduction It was of paramount important for an engineer to be able to estimate the strength and strain properties of a soil sample at a glance of its basic properties. The laboratory report cover the laboratory procedures for determining these values for cohesionless soils. ASTM D 3080 - Standard Test Method for Direct Shear Test of Soils Under Consolidated Drained Conditions Significance.

CIVE1108 GEOTECHNICAL ENGINEERING 2. In this laboratory a direct shear device will be used to determine the shear strength of a cohesionless soil ie. To facilitate the remoulding purpose a soil sample may be compacted at optimum moisture content in a compaction mould.

KEY WORDS AND DOCUMENT ANALYSIS a. The size of the specimen generally used is about 20 to 25 cm2. Weigh the initial mass of soil in the pan.

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 DIRECT SHEAR TEST CAN BE PERFORMED TO DETERMINE THE INTERNAL ANGLE OF FRICTION AND THE COHESION OF THE SOIL. The force on the specimen is applied from the top of the shear box.

Direct Shear Test Report Geotechnical Engineering Laboratory Device. In this laboratory a direct shear test device will be used to determine the shear strength of a cohesionless soil ie angle of internal friction ɸ. These two parameters are required for design of slopes calculation bearing capacity of any strata calculation of consolidation parameters and in many other analyses.

Objective For any soil Cohesion C and Angle of Internal Friction Ø are two important engineering properties which indicate the shear strength of soil. The soil specimens may be square or circular. Direct shear box apparatus Fig.

The direct shear apparatus. This indicates that the residual strength having been achieved. Direct shear of soil according to astm d 3080 SlideShare uses cookies to improve functionality and performance and to provide you with relevant advertising.

3035469657 DEPT OF CIVIL ENGEINEERING THE UNIVERSITY OF HONG KONG 1. NMT Lab Direct Shear Test High Normal Load TEST NO. The laboratory report cover the laboratory procedures for determining these values for cohesionless soils.

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. Angle of internal friction f. Values of the secant are plotted against the measured dry density in Fig.

Relationship between shear test sample shape direct shear box by friction angle. 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. Direct Shear Test CIVE 334 Dr.

From the plot of shear stress verses the horizontal displacement the maximum shear stress is obtained for a specific vertical confining stress. Direct Shear Test Lab Report. MID-AAF-0002-2 Measured Cohesion Water Content Shear box size 508 Peak Shear Stress 16393224114855862736.

A schematic diagram of the direct shear test apparatus is shown in Figure 92. 10232019 CIVL 2106 Lab Report on Shear Box Test Felix Cheng UID. It is made up of basically the components.

The test equipment consists of a metal shear box in which the soil specimen is placed. 1 Theory The strength of a soil depends of its resistance to shearing stresses. It is made up of basically the components Frictional due to friction between individual particles.

General Test Info and Sample Preparation Relative Density. 4255 1016 Weight gr. Direct shear box apparatus.

If you continue browsing the site you agree to the use of cookies on this website. INTRODUCTION The test is carried out on either undisturbed samples or remoulded samples. This is completely different compared to the initial state of the sample.

Equipment Used Figure 1. A direct shear test is a laboratory test used by geotechnical engineers to find the shear strength parameters of soil. Direct shear test is used to predict these parameters quickly.

Direct shear test is used to predict these parameters quickly. DIRECT SHEAR TEST OBJEVTIVES To determine the shear strength parameters for a given soil using the direct shear test. Prepare the soil sample by adding small quantities of water and mixing until clay becomes stiff take care not to make sample to wet.

942014 Specimen Dimension mm. The concept of direct shear is simple and mostly recommended for granular soils sometimes on soils containing some. The test is tested in a lab report.

Measure the diameter and height of the shear box. The laboratory report cover the laboratory procedures for determining these values for cohesionless soils. The direct shear test is one of the oldest strength tests for soils.

DESCRIPTORS-- water conservation1 geosyntheticsl canal lining b. DIRECT SHEAR TEST 1. 0428 1_D Height mm.

The strength of a soil depends of its resistance to shearing stresses. Square box Test ID. This report presents the results of the testing program.

LABORATORY DIRECT SHEAR TEST REPORT PROJECT. 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. Shear Test Experiment Lab Report.

IIT Gandhinagar Soil Mechanics Lab Page1 INDIAN INSTITUTE OF TECHNOLOGY GANDHINAGAR Department of Civil Engineering Soil Mechanics Laboratory DIRECT SHEAR TEST IS-2720-PART-13-1986 Reaffirmed-2002 THEORY- CONCEPT.

Eat 212 Soil Mechanics Chapter 4 Shear Strength