Geotechnical Engineering — What This Subject Is About
Every building, road and dam stands on soil — and soil is the one construction material you cannot order from a factory. Geotechnical Engineering (earlier called Soil Mechanics) is the subject that teaches you to test soil, classify it, and decide whether it can safely carry a structure. Get this wrong and even a well-designed building can settle, crack or fail.
The 5th-semester paper pairs a theory paper (5.3) with a lab (5.8), worth 200 marks together. The lab is one of the biggest in the diploma — 15 experiments, from water content and Atterberg limits to permeability, shear strength, the Proctor test and CBR. If you want to work in foundations, roads or site investigation, this subject is your base.
Subject 5.3 (Theory) + 5.8 (Lab) • Total 200 Marks • 4 Credits • 5th Semester — Civil Engineering • Session 2026–27
About this document: Geotechnical Engineering appears twice in the 5th semester — as a theory paper (5.3) and as a lab (5.8). Both are covered here, completely, in the official order.
What You Will Study
Unit 1 — Overview of Geology and Geotechnical Engineering (3 Periods, 10%)
Introduction of geology, branches of geology, importance of geology for civil engineering structure and composition of earth; definition of a rock: classification based on their genesis (mode of origin), formation; classification and engineering uses of igneous, sedimentary and metamorphic rocks; importance of soil as construction material in civil engineering structures and as foundation bed for structures.
A quick look at geology — rocks, their types and uses — and why soil is the most important construction material of all.
Unit 2 — Physical and Index Properties of Soil (7 Periods, 25%)
Soil as a three-phase system, water content, determination of water content by oven drying method as per BIS code, void ratio, porosity and degree of saturation, density index; unit weight of soil mass — bulk unit weight, dry unit weight, unit weight of solids, saturated unit weight, submerged unit weight; determination of bulk unit weight and dry unit weight by core cutter and sand replacement method, determination of specific gravity by pycnometer; consistency of soil, Atterberg limits of consistency: liquid limit, plastic limit and shrinkage limit, plasticity index; particle size distribution test and plotting of curve, determination of effective diameter of soil, well graded and uniformly graded soils, BIS classification of soil; effective stress (concept only), stresses in subsoil, definition and meaning of total stress, effective stress and neutral stress, principle of effective stress, importance of effective stress in engineering problems.
How soil is described and classified — water content, void ratio, Atterberg limits, grain size and the BIS classification of soils.
Unit 3 — Permeability and Shear Strength of Soil (7 Periods, 25%)
Definition of permeability, Darcy's law of permeability, coefficient of permeability, factors affecting permeability, determination of coefficient of permeability by constant head and falling head tests, simple problems to determine coefficient of permeability; seepage through earthen structures, seepage velocity, seepage pressure, phreatic line, flow lines, application of flow net (no numerical problems); shear failure of soil, concept of shear strength of soil; components of shearing resistance of soil — cohesion, internal friction; Mohr-Coulomb failure theory, strength envelope, strength equation for purely cohesive and cohesion less soils; direct shear and vane shear test — laboratory methods.
How water moves through soil and how strong soil is in shear — permeability, Darcy's law, seepage, and the Mohr-Coulomb theory of shear failure.
Unit 4 — Compaction and Consolidation (5 Periods, 20%)
Concept of compaction and consolidation, standard and modified Proctor test as per IS code, plotting of compaction curve for determining: optimum moisture content (OMC), maximum dry density (MDD), zero air voids line; factors affecting compaction, field methods of compaction — rolling, ramming and vibration; suitability of various compaction equipments — smooth wheel roller, sheep foot roller, pneumatic tyred roller, rammer and vibrator; difference between compaction and consolidation; definition of earth pressure, active and passive earth pressure for no surcharge condition, coefficient of earth pressure, Rankine's theory and assumptions made for non-cohesive soils.
How soil is compacted and how it settles — the Proctor test, optimum moisture content, field compaction equipment, and earth pressure.
Unit 5 — Bearing Capacity of Soil and Stabilization of Soil (6 Periods, 20%)
Bearing capacity and theory of earth pressure; concept of bearing capacity, ultimate bearing capacity, safe bearing capacity and allowable bearing pressure; introduction to Terzaghi's analysis and assumptions, effect of water table on bearing capacity; field methods for determination of bearing capacity — plate load and standard penetration test; test procedures as per IS:1888 and IS:2131; concept of soil stabilisation, necessity of soil stabilisation, different methods of soil stabilisation; California bearing ratio (CBR) test — meaning and utilisation in pavement construction; necessity of site investigation and soil exploration: types of exploration, criteria for deciding the location and number of test pits and bores; field identification of soil — dry strength test, dilatancy test and toughness test.
How much load soil can safely carry — bearing capacity, the plate load and SPT tests — and how weak soil is stabilised.
Practical Work
- Identification of rocks from the given specimen.
- Determine water content of given soil sample by oven drying method as per IS: 2720 (Part- II).
- Determine specific gravity of soil by pycnometer method as per IS 2720 (Part- III).
- Determine dry unit weight of soil in field by core cutter method as per IS 2720 (Part- XXIX).
- Determine dry unit weight of soil in field by sand replacement method as per IS 2720 (Part- XXVIII).
- Determine plastic and liquid limit along with plasticity index of given soil sample as per IS 2720 (Part- V).
And more — the complete list of 15 practicals is inside the PDF.
Complete Syllabus
The full examination scheme, the complete practicals list and the reference books from the official syllabus. The unit-wise topics are in the “What You Will Study” section above.
Examination Scheme
| Code | Paper | Type | L – P | Credits | Internal | External | Total |
|---|---|---|---|---|---|---|---|
| 5.3 | Geotechnical Engineering | Theory | 2 – 0 | 2 | Theory 40 | Theory 60 (3 hrs) | 100 |
| 5.8 | Geotechnical Engineering Lab. | Practical | 0 – 4 | 2 | Practical 60 | Practical 40 (3 hrs) | 100 |
| Geotechnical Engineering Total | 4 | 100 | 100 | 200 | |||
Units at a Glance
| Unit | Topic | Periods | Marks Share |
|---|---|---|---|
| 1 | Overview of Geology and Geotechnical Engineering | 3 | 10% |
| 2 | Physical and Index Properties of Soil | 7 | 25% |
| 3 | Permeability and Shear Strength of Soil | 7 | 25% |
| 4 | Compaction and Consolidation | 5 | 20% |
| 5 | Bearing Capacity of Soil and Stabilization of Soil | 6 | 20% |
Complete Practicals List
This is the complete list of practicals from the official syllabus.
- Identification of rocks from the given specimen.
- Determine water content of given soil sample by oven drying method as per IS: 2720 (Part- II).
- Determine specific gravity of soil by pycnometer method as per IS 2720 (Part- III).
- Determine dry unit weight of soil in field by core cutter method as per IS 2720 (Part- XXIX).
- Determine dry unit weight of soil in field by sand replacement method as per IS 2720 (Part- XXVIII).
- Determine plastic and liquid limit along with plasticity index of given soil sample as per IS 2720 (Part- V).
- Determine shrinkage limit of given soil sample as per IS 2720 (Part- V).
- Determine grain size distribution of given soil sample by mechanical sieve analysis as per IS 2720 (Part- IV).
- Use different types of soil to identify and classify soil by conducting field tests — through visual inspection, dry strength test, dilatancy test and toughness test.
- Determine coefficient of permeability by constant head test as per IS 2720 (Part- XVII).
- Determine coefficient of permeability by falling head test as per IS 2720 (Part- XVII).
- Determine shear strength of soil by direct shear test as per IS 2720 (Part- XIII).
- Determine shear strength of soil by vane shear test as per IS 2720 (Part- XXX).
- Determine MDD and OMC by standard Proctor test of given soil sample as per IS 2720 (Part- VII).
- Determination of CBR value on the field as per IS 2720 (Part- XVI).
Reference Books
As listed in the syllabus:
- Punmia, B.C., Soil Mechanics and Foundation Engineering, Laxmi Publication, Delhi.
- Murthy, V.N.S., A text book of soil mechanics and foundation Engineering, CBS Publishers & Distributors Pvt. Ltd., New Delhi.
- Ramamurthy, T.N. & Sitharam, T.G., Geotechnical Engineering (Soil Mechanics), S Chand and Company Ltd., New Delhi.
- Raj, P. Purushothama, Soil Mechanics and Foundation Engineering, Pearson India, New Delhi.
- Kasamalkar, B. J., Geotechnical Engineering, Pune Vidyarthi Griha Prakashan, Pune.
- Arora K R, Soil Mechanics and Foundation Engineering, Standard Publisher.
- S.K.Sharma, Soil Mechanics & Foundation Engineering, Asian Publishers, Muzaffarnagar, ISBN No. 978-93-91541-60-6.
Frequently Asked Questions
How many marks is Geotechnical Engineering worth in the 5th semester?
200 marks in total and 4 credits. Geotechnical Engineering: 100 marks (internal Theory 40, external Theory 60 (3 hrs)); Geotechnical Engineering Lab.: 100 marks (internal Practical 60, external Practical 40 (3 hrs)).
Which units carry the most weightage in Geotechnical Engineering?
Physical and Index Properties of Soil (25%, 7 periods); Permeability and Shear Strength of Soil (25%, 7 periods) — the highest weightage in the subject. The complete unit-wise weightage table is in the Complete Syllabus section above.
What practical work is there in Geotechnical Engineering?
15 experiments, including Identification of rocks from the given specimen.; Determine water content of given soil sample by oven drying method as per IS: 2720 (Part- II).; Determine specific gravity of soil by pycnometer method as per IS 2720 (Part- III).. The complete list is in the Complete Syllabus section above.
Which books should I refer to for Geotechnical Engineering?
The syllabus lists 7 books, including Punmia, B.C., Soil Mechanics and Foundation Engineering, Laxmi Publication, Delhi. and Murthy, V.N.S., A text book of soil mechanics and foundation Engineering, CBS Publisher…, among others. The full list is in the Complete Syllabus section above.
Is Geotechnical Engineering a theory subject or a practical subject?
Both: Geotechnical Engineering is theory (L–P 2 – 0); Geotechnical Engineering Lab. is practical (L–P 0 – 4).
How can I download the Geotechnical Engineering syllabus PDF?
The PDF is free to download — use the download link in the Download section below. It is prepared by KAMALDNP Academy from the official BTEUP syllabus.
Related Syllabus Posts
- BTEUP Civil 5th Semester Syllabus 2026-27
- BTEUP Civil Complete Syllabus 2026-27 — 5th & 6th Semester (All Subjects)
- Transportation Engineering — BTEUP Civil 5th Semester Syllabus 2026-27
- Estimating Costing and Valuation — BTEUP Civil 5th Semester Syllabus 2026-27
- Design of Steel Structure and Drawing — BTEUP Civil 5th Semester Syllabus 2026-27
- Green Building and Energy Conservation — BTEUP Civil 5th Semester Syllabus 2026-27
Download the Geotechnical Engineering Syllabus PDF
Download the complete Geotechnical Engineering syllabus PDF below — prepared by KAMALDNP Academy, with the full topic list, practicals and reference books.
Download the Geotechnical Engineering Syllabus PDF
Source: BTEUP 3rd Year curriculum (folder2627), approved in C.D.C. meeting held on 16.07.2026. Topic lists follow the official syllabus; short explanations are the author's own plain-English summaries, not syllabus text. Please confirm with your own polytechnic for any local changes.
Comments (0)
Share your question or experience about this syllabus. Your comment will appear after review.
No comments yet — be the first to share your thoughts!