direct shear test lab report

INTRODUCTION The test is carried out on either undisturbed samples or remoulded samples. Planning and organization Apparatus 1.

Direct Shear Test Results Download Table

The soil sample starts to rebound as soon as the normal load.

. 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. 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. A direct shear test is a laboratory test used by geotechnical engineers to find the shear strength parameters of soil.

Angle of internal friction f. The test utilizes the Direct Shear Box to test the soil then using the equation s the angle of friction can be determined. This is completely different compared to the initial state of the sample.

Direct shear box apparatus Fig. It is made up of basically the components. NMT Lab Direct Shear Test High Normal Load TEST NO.

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. 1 the type of subject being tested eg. 1 Theory The strength of a soil depends of its resistance to shearing stresses.

THE DIRECT SHEAR TEST CAN BE PERFORMED TO DETERMINE THE INTERNAL ANGLE OF FRICTION AND THE COHESION OF THE SOIL. Prepare the soil sample by adding small quantities of water and mixing until clay becomes stiff take care not to make sample to wet. DESCRIPTORS-- water conservation1 geosyntheticsl canal lining b.

The size of the specimen generally used is about 20 to 25 cm2. DIRECT SHEAR TEST 1. 04 DIRECT SHEAR TEST ON COHESIONLESS SOIL Referenced Standard.

A schematic diagram of the direct shear test apparatus is shown in Figure 92. Assemble the shear box as indicated in. Loading frame motor attached.

Direct shear test is used to predict these parameters quickly. Chaoyang University of Technology-- Direct Shear Testing --5 Dismantling Stage When the test is over the shearing stress is reduced to zero. The normal load is then reduced to zero as quickly as possible and the apparatus dismantled.

Equipment for measuring deformations is removed. This report presents the results of the testing program. This indicates that the residual strength having been achieved.

Direct Shear Test CIVE 334 Dr. Cohesion of the soil involved are required for the design. 10232019 CIVL 2106 Lab Report on Shear Box Test Felix Cheng UID.

Equipment Used Figure 1. Weigh the initial mass of soil in the pan. 3035469657 DEPT OF CIVIL ENGEINEERING THE UNIVERSITY OF HONG KONG 1.

The soil specimen was taken as per IS 2720 Part 1-1983. The test is tested in a lab report. In this laboratory a direct shear device will be used to determine the shear strength of a cohesionless soil ie.

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. KEY WORDS AND DOCUMENT ANALYSIS a. To facilitate the remoulding purpose a soil sample may be compacted at optimum moisture content in a compaction mould.

CNL or CNS 3 the type of thermal loading system eg. Direct shear box apparatus 2. Values of the secant are plotted against the measured dry density in Fig.

Direct shear test is useful when cohesionless soil are to be tested. NMT Soil Lab TEST DATE. The direct shear test measures the shear strength parameters which are the soil cohesion c and the angle of friction.

OVERALL THE LAB WAS A SUCCESS. The soil specimens may be square or circular. Erica Elice Uy Department of Civil Engineering Gokongwei College of Engineering De La Salle University In Partial Fulfillment of The Requirements for the Subject Geotechnical Engineering Laboratory 2 LBYCVG2 Submitted by.

These two parameters are required for design of slopes calculation bearing capacity of any strata calculation of consolidation parameters and in many other analyses. 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. Direct Shear Test Lab Report.

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. CIVE1108 GEOTECHNICAL ENGINEERING 2. The direct shear apparatus.

Relationship between shear test sample shape direct shear box by friction angle. ASTM D 3080 A Laboratory Report Presented to Dr. The aim of this direct shear test is to determine the shearing strength of soil using.

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. The result is obtained as per IS code. The laboratory report cover the laboratory procedures for determining these values for cohesionless soils.

LABORATORY DIRECT SHEAR TEST REPORT PROJECT. DIRECT SHEAR TEST OBJEVTIVES To determine the shear strength parameters for a given soil using the direct shear test. Shear strength is defined as the maximum resistance that a material can withstand when subjected to shearing.

ASTM D 3080 - Standard Test Method for Direct Shear Test of Soils Under Consolidated Drained Conditions Significance. The laboratory report cover the laboratory procedures for determining these values for cohesionless soils. The test equipment consists of a metal shear box in which the soil specimen is placed.

The direct shear test is one of the oldest strength tests for soils. Shear Test Experiment Lab Report 1052 Words5 Pages KNOWLEDGE OF EQUIPMENT. A soil specimen or a soilconcrete specimen 2 the type of loading conditions eg.

Measure the diameter and height of the shear box. Compact sample in a 60mm x 60mm x 20mm cutting ring. Objective For any soil Cohesion C and Angle of Internal Friction Ø are two important engineering properties which indicate the shear strength of soil.

Compute 15 of the diameter in millimeters. 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. MID-AAF-0002-2 Measured Cohesion Water Content Shear box size 508 Peak Shear Stress 16393224114855862736.

Based on electrical resistances or exploiting a. Different types of direct shear tests under nonisothermal conditions exist and can be classified depending on the following factors. Direct shear test is used to predict these parameters quickly.

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