{"id":799,"date":"2022-05-03T06:31:55","date_gmt":"2022-05-03T06:31:55","guid":{"rendered":"https:\/\/www.iitrpr.ac.in\/civil\/?page_id=799"},"modified":"2022-06-03T09:11:45","modified_gmt":"2022-06-03T09:11:45","slug":"geotechnical-engineering-section","status":"publish","type":"page","link":"\/civil\/?page_id=799","title":{"rendered":"Geotechnical Engineering Section"},"content":{"rendered":"\n

Officer in charge: <\/strong>Dr. Reshmi Sebastian<\/p>\n\n\n\n

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S. No.<\/strong><\/th>Name of Instrument<\/strong><\/th>Description<\/strong><\/th>Photo<\/strong><\/th><\/tr><\/thead>
1<\/td>Resonant Column Test Apparatus<\/td>Resonant column apparatus has been used in research and commercial laboratories to estimate values of the shear modulus, G, and damping ratio, D, for soil specimens across the small to medium strain range (< 1 %).<\/td><\/td><\/tr>
2<\/td>Cyclic Triaxial Test Appratus<\/td>The apparatus used for cyclic triaxial strength tests is somehow similar to the conventional triaxial test equipment used for the unconsolidated-undrained triaxial compression test and the consolidated-undrained triaxial compression test.<\/td><\/td><\/tr>
3<\/td>Unconfined Compression Testing apparatus<\/td>The apparatus required for an unconfined compression test includes a loading frame with two metal plates, a sampling tube, a split mold, a load measuring device, a calibrated proving ring or an electronic load cell, and a dial gauge. For the test procedure, the sampling tube is pushed into the soil sample and then removed along with the soil.<\/td><\/td><\/tr>
4<\/td>Direct Shear Test Apparatus (Motorized, Manual)<\/td>The Direct Shear test apparatus consist of a square or circular box divided into two halves. The specimen, contained in the box, is subjected to a constant normal load while an increasing horizontal force is applied to one of the sections of the shear box. This force causes a shear failure along the juncture between the box sections of this.<\/td><\/td><\/tr>
5<\/td>Direct shear test apparatus (Motorized, digital)<\/td>The Direct Shear test apparatus consist of a square or circular box divided into two halves. The specimen, contained in the box, is subjected to a constant normal load while an increasing horizontal force is applied to one of the sections of the shear box. This force causes a shear failure along the juncture between the box sections of this.<\/td><\/td><\/tr>
6<\/td>Consolidation Apparatus (manual)
1 set of 3 consolidation bench<\/td>		The consolidation apparatus is used to determine the consolidation characteristics of soils of low permeability. In addition, tests are carried out on specimens prepared from undisturbed samples.<\/td><\/td><\/tr>
7<\/td>CBR Apparatus<\/td>The laboratory CBR apparatus consists of a mould of 150 mm diameter with a base plate and a collar, a loading frame and dial gauges for measuring the penetration values and the expansion on soaking.<\/td><\/td><\/tr>
8<\/td>Triaxial Test Apparatus  <\/td>The Triaxial Test System provides automated triaxial compression tests on cylindrical undisturbed and remolded soil samples. Unconsolidated undrained (UU), consolidated drained (CD) and consolidated undrained (CU) compression tests can be automatically run, controlled and reported using this apparatus<\/td><\/td><\/tr>
9<\/td>Sample Jet \u2013 500, Hydraulic Sample Extruder<\/td>Hydraulic Sample Extruder ejects undisturbed soil samples from full-size thin-walled samplers (Shelby Tubes) in one stroke. It is used in sample preparation for a variety of soil tests including triaxial, permeability, direct shear, consolidation<\/td><\/td><\/tr>
10<\/td>Soil Extruder (Rack type)<\/td>Soil Extruder, Rack Type Designed for extraction of soil samples from 38 mm dia thin wall sampling tubes on a horizontal position, rack and pinion device. Fitted with a wire trimmer and a split mould mounting bracket<\/td><\/td><\/tr>
11<\/td>Lab Vane shear Apparatus<\/td>The laboratory Vane Shear Apparatus measures the shear strength of cohesive soils and is particularly useful for soils with low shear strength.<\/td><\/td><\/tr>
12<\/td>Swell Pressure Apparatus<\/td>Swell Pressure Apparatus. Consists of one Load Frame, hand operated 50 KN one swell mould, 100mm dia x 127.3 mm ht x lOOOc.c. volume with base plate and collar., one Perforated Swell<\/td><\/td><\/tr>
13<\/td>Plate Load Test Apparatus<\/td>Plate Load Test Plate Load Test is a field test for determining the ultimate bearing capacity of soil and the likely settlement under a given load. The Plate Load Test basically consists of loading a steel plate placed at the foundation level and recording the settlements corresponding to each load increment.<\/td><\/td><\/tr>
14<\/td>Core Cutter Apparatus<\/td>Conform to IS 2720 standards, Core Cutter Apparatus are used to determine in-situ dry density of natural or compacted fine grained soil, which is free from aggregates. With the help of a dolly and rammer, a cylindrical cutter is used to extract a sample of the soil.<\/td><\/td><\/tr>
15<\/td>Sand Replacement Apparatus<\/td>Sand Replacement Method is also known as Sand Cone Method. The apparatus used in this field density test consists of a sand pouring cylinder, with pouring cone at its base. There is a shutter between the cylinder and the cone.<\/td><\/td><\/tr>
16<\/td>Liquid Limit Apparatus  (Hand operated)<\/td>Liquid Limit Apparatus Hand Operated Liquid Limit is that water content at which a part of soil cut by a groove of standard dimension will flow together for a distance of 1.25cm under air impact of 25 blows in a standard liquid limit apparatus.<\/td><\/td><\/tr>
17<\/td>Liquid Limit  Apparatus  (Motorized)<\/td>Liquid Limit Apparatus motorised , Liquid Limit is that water content at which a part of soil cut by a groove of standard dimension will flow together for a distance of 1.25cm under air impact of 25 blows in a standard liquid limit apparatus.<\/td><\/td><\/tr>
18<\/td>Cone Penetrometer Apparatus<\/td>The cone penetrometer apparatus is used to determine the moisture content at which clay soils pass from a plastic to a liquid state and it is used also for the determination of undrained shear strength.<\/td><\/td><\/tr>
19<\/td>Plastic Limit Apparatus<\/td>Plastic Limit Apparatus : Moisture contents at which soil has smallest plasticity is called limit. For determination purpose plastic limit is defined as the water content at which a soil will just begin to crumble when rolled in to a thread of 3mm dia.<\/td><\/td><\/tr>
20<\/td>Srinkage Limit Apparatus<\/td>The shrinkage limit apparatus includes components necessary to run the test. ASTM recommends this new method as an alternative to the original D427 test method, which was withdrawn due to its use of mercury for volume determinations. <\/td><\/td><\/tr>
21<\/td>Sieve Analysis Apparatus<\/td>Sieve is the chief apparatus required for conducting the sieve analysis. Generally, a sieve may be understood as an apparatus similar to a utensil that essentially consists of a wire or plastic mesh held in a frame used for separating coarser particles from the finer particles.<\/td><\/td><\/tr>
22<\/td>Hydrometer Analysis Apparatus<\/td>A hydrometer analysis is a measurement method used to determine soil particle size in a sample. Hydrometer analysis is specifically for soil particle sizes that are less than approximately 0.75 mm in diameter. To perform the test, a hydrometer is placed in a container filled with a water and soil mixture and measurements are taken over time.<\/td><\/td><\/tr>
23<\/td>Permeability Apparatus<\/td>The apparatus is used for the laboratory determination of permeability of soil using a constant or a variable head. This test is recommended for soils with co-efficient permeability in the range of 0<\/td><\/td><\/tr>
24<\/td>Relative Density Apparatus<\/td>Relative Density Apparatus. Apparatus determines the relative density of cohesionless, free-draining soils and provides well-defined results on soils that do not respond well to conventional moisture-density impact compaction testing.<\/td><\/td><\/tr>
25<\/td>Compaction Testing Apparatus<\/td>Proctor Compaction Test Apparatus is a fundamental requirement for the construction of earth fill for dams, reservoirs, canal embankments, highways, railways and runways.<\/td><\/td><\/tr>
26<\/td>Hot Air Oven<\/td>Hot air oven sterilization is a process of decontamination carried out by an electrical device that utilizes dry heat to sterilize various type of equipment or articles kept inside its chamber<\/td><\/td><\/tr>
27<\/td>Vacuum Pump<\/td>It is defined as a device that removes gas molecules, or water molecules from a particular enclosed space and leaves a vacuum behind. The vacuum is defined as the absence of air<\/td><\/td><\/tr>
28<\/td>Desiccators- (Plastic made, 200mm)<\/td>Desiccators are sealable enclosures containing desiccants used for preserving moisture-sensitive items such as cobalt chloride paper for another use. A common use for desiccators is to protect chemicals which are hygroscopic or which react with water from humidity.<\/td><\/td><\/tr>
29<\/td>Infrared Moisture Meter<\/td>A moisture analyzer is a device that determines the moisture content with the loss on drying method and consists of a weighing and halogen heating unit.<\/td><\/td><\/tr>
30<\/td>Electronic Weighing Balance (0.01gm sensitivity 200g capacity)<\/td>An electronic balance is one that uses an electromagnet to balance the object to be weighed on a single pan. It can measure to an accuracy of near about 0.01 gm to 200g.<\/td><\/td><\/tr>
31<\/td>Electronic weighing Balance (1gm sensitivity 20kg)<\/td>An electronic balance is one that uses an electromagnet to balance the object to be weighed on a single pan.It can measure to an accuracy of near about 1 gm to 20 kg<\/td><\/td><\/tr>
32<\/td>Distil Water Apparatus<\/td>The distillation apparatus, commonly called a \u2018still\u2019, consists of a vessel for plant material and water, a condenser to cool and condense the vapour produced and a method of collection, or \u2018receiver\u2019. Material from the appropriate part of the plant for extraction is immersed in water in the distillation vessel.<\/td><\/td><\/tr>
33<\/td>PH Meter<\/td>A pH meter is a scientific instrument that measures the hydrogen-ion activity in solutions, indicating its acidity or basicity (alkalinity) expressed as pH.<\/td><\/td><\/tr>
34<\/td>Table Top Centrifuge<\/td>Centrifuge is the use of centrifugal sedimentation principle, the use of centrifugal force in the solution of different density of cells (particles) under the action of centrifugal force to achieve separation, concentration or purification.<\/td><\/td><\/tr>
35<\/td>Automatic Mechanical Compactor<\/td>The automatic proctor compactor is a specialized equipment to perform soil compaction test, it can do standard and modefied compaction test. The soil compaction test is used to determine the max dry density and matched best moisture content of compacted roadbase soil. <\/td><\/td><\/tr>
36<\/td>Consolidation Apparatus (Heavy)<\/td>The consolidation apparatus is used to determine the consolidation characteristics of soils of low permeability. In addition, tests are carried out on specimens prepared from undisturbed samples.<\/td><\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"

Officer in charge: Dr. Reshmi Sebastian S. No. Name of Instrument Description Photo 1 Resonant Column Test Apparatus Resonant column apparatus has been used in research and commercial laboratories to estimate values of the shear modulus, G, and damping ratio, D, for soil specimens across the small to medium strain range (< 1 %). 2 […]<\/p>\n","protected":false},"author":1,"featured_media":826,"parent":58,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"acf":[],"_links":{"self":[{"href":"\/civil\/index.php?rest_route=\/wp\/v2\/pages\/799"}],"collection":[{"href":"\/civil\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"\/civil\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"\/civil\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/civil\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=799"}],"version-history":[{"count":51,"href":"\/civil\/index.php?rest_route=\/wp\/v2\/pages\/799\/revisions"}],"predecessor-version":[{"id":1799,"href":"\/civil\/index.php?rest_route=\/wp\/v2\/pages\/799\/revisions\/1799"}],"up":[{"embeddable":true,"href":"\/civil\/index.php?rest_route=\/wp\/v2\/pages\/58"}],"wp:featuredmedia":[{"embeddable":true,"href":"\/civil\/index.php?rest_route=\/wp\/v2\/media\/826"}],"wp:attachment":[{"href":"\/civil\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=799"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}